png.c revision 991d11dd9c33e65872778b81aff1347cd2878154
13ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 23ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 33ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 43ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 53ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 63ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PPPP N N GGGG % 73ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P P NN N G % 83ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PPPP N N N G GG % 93ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P N NN G G % 103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P N N GGG % 113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Read/Write Portable Network Graphics Image Format % 143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Software Design % 163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% John Cristy % 173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Glenn Randers-Pehrson % 183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 1997 % 193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2116af1cbdffcc02e7239d432e5fb51734fcf9f9ffcristy% Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % 223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% dedicated to making software imaging solutions freely available. % 233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% You may not use this file except in compliance with the License. You may % 253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% obtain a copy of the License at % 263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% http://www.imagemagick.org/script/license.php % 283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Unless required by applicable law or agreed to in writing, software % 303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% distributed under the License is distributed on an "AS IS" BASIS, % 313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % 323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% See the License for the specific language governing permissions and % 333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% limitations under the License. % 343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Include declarations. 433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/studio.h" 455a2ca481ab4ff6751bba842263739966e53441aacristy#include "magick/attribute.h" 463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/blob.h" 473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/blob-private.h" 483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/cache.h" 493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/color.h" 503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/color-private.h" 514ccd4c0b8623aa47f1c10dd366666799e5957c3ccristy#include "magick/colormap.h" 523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/colorspace.h" 533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/constitute.h" 543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/enhance.h" 553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception.h" 563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception-private.h" 573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/geometry.h" 58f2e1166e90de2dfe2e6a2aed7cd5f73640f34a7acristy#include "magick/histogram.h" 593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image.h" 603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image-private.h" 613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/layer.h" 623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/list.h" 633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/log.h" 643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/magick.h" 653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/memory_.h" 663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/module.h" 673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor.h" 683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor-private.h" 693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/option.h" 703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/profile.h" 723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/property.h" 733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantize.h" 743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/resource_.h" 753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/semaphore.h" 763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/static.h" 783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/statistic.h" 793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/string_.h" 80f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy#include "magick/string-private.h" 813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/transform.h" 823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/utility.h" 833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 84286a6355c4544b794da2b6df973faad07c69e541glennrp 857ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp/* Suppress libpng pedantic warnings that were added in 867ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * libpng-1.2.41 and libpng-1.4.0. If you are working on 87faa852bad40107edae19405e76a299057668d795glennrp * migration to libpng-1.5, remove these defines and then 887ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * fix any code that generates warnings. 897ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp */ 90991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp/* #define PNG_DEPRECATED Use of this function is deprecated */ 91faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_USE_RESULT The result of this function must be checked */ 92faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_NORETURN This function does not return */ 93faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_ALLOCATED The result of the function is new memory */ 94faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_DEPSTRUCT Access to this struct member is deprecated */ 95286a6355c4544b794da2b6df973faad07c69e541glennrp 963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "png.h" 973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "zlib.h" 983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* ImageMagick differences */ 1003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define first_scene scene 1013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 102d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 1033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Optional declarations. Define or undefine them as you like. 1053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* #define PNG_DEBUG -- turning this on breaks VisualC compiling */ 1073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Features under construction. Define these to work on them. 1103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_OBJECT_BUFFERS 1123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_BASI_SUPPORTED 1133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_COALESCE_LAYERS /* In 5.4.4, this interfered with MMAP'ed files. */ 1143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_INSERT_LAYERS /* Troublesome, but seem to work as of 5.4.4 */ 1153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_BUILD_PALETTE /* This works as of 5.4.3. */ 116a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp#define PNG_SORT_PALETTE /* This works as of 5.4.0 but not in 6.5. */ 1173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_JPEG_DELEGATE) 1183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define JNG_SUPPORTED /* Not finished as of 5.5.2. See "To do" comments. */ 1193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(RGBColorMatchExact) 1213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define IsPNGColorEqual(color,target) \ 1223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((color).red == (target).red) && \ 1233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).green == (target).green) && \ 1243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).blue == (target).blue)) 1253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Establish thread safety. 1293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is claimed to be safe on these platforms: 1303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is alleged to be unsafe on these platforms: 1313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef SETJMP_IS_THREAD_SAFE 1333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SETJMP_NOT_THREAD_SAFE 1343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic SemaphoreInfo 1383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_semaphore = (SemaphoreInfo *) NULL; 1393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This temporary until I set up malloc'ed object attributes array. 1433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Recompile with MNG_MAX_OBJECTS=65536L to avoid this limit but 1443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy waste more memory. 1453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_MAX_OBJECTS 256 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If this not defined, spec is interpreted strictly. If it is 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined, an attempt will be made to recover from some errors, 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy including 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o global PLTE too short 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_LOOSE 1553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Don't try to define PNG_MNG_FEATURES_SUPPORTED here. Make sure 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy it's defined in libpng/pngconf.h, version 1.0.9 or later. It won't work 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy with earlier versions of libpng. From libpng-1.0.3a to libpng-1.0.8, 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_READ|WRITE_EMPTY_PLTE were used but those have been deprecated in 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy libpng in favor of PNG_MNG_FEATURES_SUPPORTED, so we set them here. 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_MNG_FEATURES_SUPPORTED is disabled by default in libpng-1.0.9 and 1633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy will be enabled by default in libpng-1.2.0. 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_MNG_FEATURES_SUPPORTED 1663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 1673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_READ_EMPTY_PLTE_SUPPORTED 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_WRITE_EMPTY_PLTE_SUPPORTED 1703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_WRITE_EMPTY_PLTE_SUPPORTED 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 175bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy Maximum valid size_t in PNG/MNG chunks is (2^31)-1 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This macro is only defined in libpng-1.0.3 and later. 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Previously it was PNG_MAX_UINT but that was deprecated in libpng-1.2.6 1783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_UINT_31_MAX 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_UINT_31_MAX (png_uint_32) 0x7fffffffL 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Constant strings for known chunk types. If you need to add a chunk, 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy add a string holding the name here. To make the code more 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy portable, we use ASCII numbers like this, not characters. 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MHDR[5]={ 77, 72, 68, 82, (png_byte) '\0'}; 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BACK[5]={ 66, 65, 67, 75, (png_byte) '\0'}; 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BASI[5]={ 66, 65, 83, 73, (png_byte) '\0'}; 1923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLIP[5]={ 67, 76, 73, 80, (png_byte) '\0'}; 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLON[5]={ 67, 76, 79, 78, (png_byte) '\0'}; 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DEFI[5]={ 68, 69, 70, 73, (png_byte) '\0'}; 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DHDR[5]={ 68, 72, 68, 82, (png_byte) '\0'}; 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DISC[5]={ 68, 73, 83, 67, (png_byte) '\0'}; 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_ENDL[5]={ 69, 78, 68, 76, (png_byte) '\0'}; 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_FRAM[5]={ 70, 82, 65, 77, (png_byte) '\0'}; 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IEND[5]={ 73, 69, 78, 68, (png_byte) '\0'}; 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IHDR[5]={ 73, 72, 68, 82, (png_byte) '\0'}; 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JHDR[5]={ 74, 72, 68, 82, (png_byte) '\0'}; 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_LOOP[5]={ 76, 79, 79, 80, (png_byte) '\0'}; 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MAGN[5]={ 77, 65, 71, 78, (png_byte) '\0'}; 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MEND[5]={ 77, 69, 78, 68, (png_byte) '\0'}; 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MOVE[5]={ 77, 79, 86, 69, (png_byte) '\0'}; 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PAST[5]={ 80, 65, 83, 84, (png_byte) '\0'}; 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PLTE[5]={ 80, 76, 84, 69, (png_byte) '\0'}; 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SAVE[5]={ 83, 65, 86, 69, (png_byte) '\0'}; 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SEEK[5]={ 83, 69, 69, 75, (png_byte) '\0'}; 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SHOW[5]={ 83, 72, 79, 87, (png_byte) '\0'}; 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_TERM[5]={ 84, 69, 82, 77, (png_byte) '\0'}; 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_bKGD[5]={ 98, 75, 71, 68, (png_byte) '\0'}; 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_cHRM[5]={ 99, 72, 82, 77, (png_byte) '\0'}; 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_gAMA[5]={103, 65, 77, 65, (png_byte) '\0'}; 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_nEED[5]={110, 69, 69, 68, (png_byte) '\0'}; 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYg[5]={112, 72, 89, 103, (png_byte) '\0'}; 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYs[5]={112, 72, 89, 115, (png_byte) '\0'}; 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sBIT[5]={115, 66, 73, 84, (png_byte) '\0'}; 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sRGB[5]={115, 82, 71, 66, (png_byte) '\0'}; 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tRNS[5]={116, 82, 78, 83, (png_byte) '\0'}; 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IDAT[5]={ 73, 68, 65, 84, (png_byte) '\0'}; 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAT[5]={ 74, 68, 65, 84, (png_byte) '\0'}; 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAA[5]={ 74, 68, 65, 65, (png_byte) '\0'}; 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JdAA[5]={ 74, 100, 65, 65, (png_byte) '\0'}; 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JSEP[5]={ 74, 83, 69, 80, (png_byte) '\0'}; 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_oFFs[5]={111, 70, 70, 115, (png_byte) '\0'}; 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristyOther known chunks that are not yet supported by ImageMagick: 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_hIST[5]={104, 73, 83, 84, (png_byte) '\0'}; 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iTXt[5]={105, 84, 88, 116, (png_byte) '\0'}; 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sPLT[5]={115, 80, 76, 84, (png_byte) '\0'}; 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sTER[5]={115, 84, 69, 82, (png_byte) '\0'}; 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tEXt[5]={116, 69, 88, 116, (png_byte) '\0'}; 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tIME[5]={116, 73, 77, 69, (png_byte) '\0'}; 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_zTXt[5]={122, 84, 88, 116, (png_byte) '\0'}; 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrptypedef struct _UShortPixelPacket 24605eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp{ 24705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp unsigned short 24805eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp red, 24905eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp green, 25005eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp blue, 25105eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp opacity, 25205eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp index; 25305eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp} UShortPixelPacket; 25405eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBox 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2578182b0758e3429fb8dcd1700f09643fd4d80a41ccristy long 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2668182b0758e3429fb8dcd1700f09643fd4d80a41ccristy volatile long 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 275bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height, 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width; 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte[256]; 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reference_count; 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_sample_depth, 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy concrete, 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method, 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen, 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_type, 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixel_sample_depth, 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte_length, 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sample_depth, 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable; 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBuffer; 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngInfo 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBuffer 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ob[MNG_MAX_OBJECTS]; 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image * 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image; 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page; 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy adjoin, 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_in_read_buffer, 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy found_empty_plte, 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_backgrounds, 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_chrms, 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_gammas, 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_palettes, 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_physs, 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_srgbs, 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode, 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_bkgd, 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_chrm, 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_gama, 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_phys, 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_sbit, 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_srgb, 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_saved_bkgd_index, 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_chrm, 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_gama, 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_plte, 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_srgb, 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_fram, 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_framing_mode, 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy saved_bkgd_index; 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors; 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 354bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_found, 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_count[256], 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iteration[256], 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scenes_found, 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_off[MNG_MAX_OBJECTS], 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_off[MNG_MAX_OBJECTS]; 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clip, 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame, 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_box, 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_clip[MNG_MAX_OBJECTS]; 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* These flags could be combined into one byte */ 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exists[MNG_MAX_OBJECTS], 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen[MNG_MAX_OBJECTS], 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_active[256], 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy invisible[MNG_MAX_OBJECTS], 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable[MNG_MAX_OBJECTS]; 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_jump[256]; 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte; 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_8 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_sbit; 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_buffer[8], 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns[256]; 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy float 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_gamma; 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ChromaticityInfo 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_chrm; 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RenderingIntent 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_srgb_intent; 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40035ef824baa82511126ff0072ae30eee0da9c05a3cristy unsigned int 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy delay, 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte_length, 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns_length, 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_x_pixels_per_unit, 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_y_pixels_per_unit, 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_width, 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_height, 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ticks_per_second; 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IsPalette, 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_phys_unit_type, 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_warning, 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clon_warning, 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dhdr_warning, 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jhdr_warning, 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_warning, 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy past_warning, 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phyg_warning, 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phys_warning, 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sbit_warning, 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy show_warning, 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type, 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng, 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_colortype, 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_depth, 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png8, 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png24, 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png32; 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 432bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width, 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height; 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_depth, 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type, 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method, 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type, 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method, 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red, 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green, 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue, 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha, 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable; 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_global_bkgd; 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngInfo; 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* VER */ 4663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 4693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WritePNGImage(const ImageInfo *,Image *); 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteMNGImage(const ImageInfo *,Image *); 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 4753ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteJNGImage(const ImageInfo *,Image *); 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 479e610a071534e448c46460a5aa39ede33bf56b329glennrpstatic int 480e610a071534e448c46460a5aa39ede33bf56b329glennrpPNG_RenderingIntent_from_Magick_RenderingIntent(const RenderingIntent intent) 481e610a071534e448c46460a5aa39ede33bf56b329glennrp{ 482e610a071534e448c46460a5aa39ede33bf56b329glennrp switch (intent) 483e610a071534e448c46460a5aa39ede33bf56b329glennrp { 484e610a071534e448c46460a5aa39ede33bf56b329glennrp case PerceptualIntent: 485e610a071534e448c46460a5aa39ede33bf56b329glennrp return 0; 486e610a071534e448c46460a5aa39ede33bf56b329glennrp case RelativeIntent: 487e610a071534e448c46460a5aa39ede33bf56b329glennrp return 1; 488e610a071534e448c46460a5aa39ede33bf56b329glennrp case SaturationIntent: 489e610a071534e448c46460a5aa39ede33bf56b329glennrp return 2; 490e610a071534e448c46460a5aa39ede33bf56b329glennrp case AbsoluteIntent: 491e610a071534e448c46460a5aa39ede33bf56b329glennrp return 3; 492e610a071534e448c46460a5aa39ede33bf56b329glennrp default: 493e610a071534e448c46460a5aa39ede33bf56b329glennrp return -1; 494e610a071534e448c46460a5aa39ede33bf56b329glennrp } 495e610a071534e448c46460a5aa39ede33bf56b329glennrp} 496e610a071534e448c46460a5aa39ede33bf56b329glennrp 497e610a071534e448c46460a5aa39ede33bf56b329glennrpstatic RenderingIntent 498e610a071534e448c46460a5aa39ede33bf56b329glennrpPNG_RenderingIntent_to_Magick_RenderingIntent(const int png_intent) 499e610a071534e448c46460a5aa39ede33bf56b329glennrp{ 500e610a071534e448c46460a5aa39ede33bf56b329glennrp switch (png_intent) 501e610a071534e448c46460a5aa39ede33bf56b329glennrp { 502e610a071534e448c46460a5aa39ede33bf56b329glennrp case 0: 503e610a071534e448c46460a5aa39ede33bf56b329glennrp return PerceptualIntent; 504e610a071534e448c46460a5aa39ede33bf56b329glennrp case 1: 505e610a071534e448c46460a5aa39ede33bf56b329glennrp return RelativeIntent; 506e610a071534e448c46460a5aa39ede33bf56b329glennrp case 2: 507e610a071534e448c46460a5aa39ede33bf56b329glennrp return SaturationIntent; 508e610a071534e448c46460a5aa39ede33bf56b329glennrp case 3: 509e610a071534e448c46460a5aa39ede33bf56b329glennrp return AbsoluteIntent; 510e610a071534e448c46460a5aa39ede33bf56b329glennrp default: 511e610a071534e448c46460a5aa39ede33bf56b329glennrp return UndefinedIntent; 512e610a071534e448c46460a5aa39ede33bf56b329glennrp } 513e610a071534e448c46460a5aa39ede33bf56b329glennrp} 514e610a071534e448c46460a5aa39ede33bf56b329glennrp 515bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickMax(const ssize_t x,const ssize_t y) 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 5203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 521bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickMin(const ssize_t x,const ssize_t y) 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 5253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 528d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 529dbb105fc25903e800273f7e980c0553060858a68glennrp 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 535dbb105fc25903e800273f7e980c0553060858a68glennrp% I m a g e I s G r a y % 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 540dbb105fc25903e800273f7e980c0553060858a68glennrp% % 541dbb105fc25903e800273f7e980c0553060858a68glennrp% Like IsGrayImage except does not change DirectClass to PseudoClass % 542dbb105fc25903e800273f7e980c0553060858a68glennrp% % 543dbb105fc25903e800273f7e980c0553060858a68glennrp%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 545dbb105fc25903e800273f7e980c0553060858a68glennrpstatic MagickBooleanType ImageIsGray(Image *image) 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 550bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 5513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 552dbb105fc25903e800273f7e980c0553060858a68glennrp x, 553dbb105fc25903e800273f7e980c0553060858a68glennrp y; 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 558dbb105fc25903e800273f7e980c0553060858a68glennrp (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 559dbb105fc25903e800273f7e980c0553060858a68glennrp 560dbb105fc25903e800273f7e980c0553060858a68glennrp if (image->storage_class == PseudoClass) 5613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 562dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < (ssize_t) image->colors; i++) 563dbb105fc25903e800273f7e980c0553060858a68glennrp if (IsGray(image->colormap+i) == MagickFalse) 564dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickFalse); 565dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickTrue); 5663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 567bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 571dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickFalse); 572dbb105fc25903e800273f7e980c0553060858a68glennrp for (x=(ssize_t) image->columns-1; x >= 0; x--) 573dbb105fc25903e800273f7e980c0553060858a68glennrp { 574dbb105fc25903e800273f7e980c0553060858a68glennrp if (IsGray(p) == MagickFalse) 575dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickFalse); 576dbb105fc25903e800273f7e980c0553060858a68glennrp p++; 577dbb105fc25903e800273f7e980c0553060858a68glennrp } 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 579dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickTrue); 580dbb105fc25903e800273f7e980c0553060858a68glennrp} 581dbb105fc25903e800273f7e980c0553060858a68glennrp 582dbb105fc25903e800273f7e980c0553060858a68glennrp/* 583dbb105fc25903e800273f7e980c0553060858a68glennrp%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 584dbb105fc25903e800273f7e980c0553060858a68glennrp% % 585dbb105fc25903e800273f7e980c0553060858a68glennrp% % 586dbb105fc25903e800273f7e980c0553060858a68glennrp% % 587dbb105fc25903e800273f7e980c0553060858a68glennrp% I m a g e I s M o n o c h r o m e % 588dbb105fc25903e800273f7e980c0553060858a68glennrp% % 589dbb105fc25903e800273f7e980c0553060858a68glennrp% % 590dbb105fc25903e800273f7e980c0553060858a68glennrp% % 591dbb105fc25903e800273f7e980c0553060858a68glennrp%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 592dbb105fc25903e800273f7e980c0553060858a68glennrp% % 593dbb105fc25903e800273f7e980c0553060858a68glennrp% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 594dbb105fc25903e800273f7e980c0553060858a68glennrp% and is more accurate. % 595dbb105fc25903e800273f7e980c0553060858a68glennrp% % 596dbb105fc25903e800273f7e980c0553060858a68glennrp%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 597dbb105fc25903e800273f7e980c0553060858a68glennrp*/ 598dbb105fc25903e800273f7e980c0553060858a68glennrpstatic MagickBooleanType ImageIsMonochrome(Image *image) 599dbb105fc25903e800273f7e980c0553060858a68glennrp{ 600dbb105fc25903e800273f7e980c0553060858a68glennrp register const PixelPacket 601dbb105fc25903e800273f7e980c0553060858a68glennrp *p; 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 603dbb105fc25903e800273f7e980c0553060858a68glennrp register ssize_t 604dbb105fc25903e800273f7e980c0553060858a68glennrp i, 605dbb105fc25903e800273f7e980c0553060858a68glennrp x, 606dbb105fc25903e800273f7e980c0553060858a68glennrp y; 607a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 608dbb105fc25903e800273f7e980c0553060858a68glennrp assert(image != (Image *) NULL); 609dbb105fc25903e800273f7e980c0553060858a68glennrp assert(image->signature == MagickSignature); 610a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (image->debug != MagickFalse) 611dbb105fc25903e800273f7e980c0553060858a68glennrp (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 612dbb105fc25903e800273f7e980c0553060858a68glennrp if (image->storage_class == PseudoClass) 613a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp { 614dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < (ssize_t) image->colors; i++) 615dbb105fc25903e800273f7e980c0553060858a68glennrp { 616dbb105fc25903e800273f7e980c0553060858a68glennrp if ((IsGray(image->colormap+i) == MagickFalse) || 617dbb105fc25903e800273f7e980c0553060858a68glennrp ((image->colormap[i].red != 0) && 618dbb105fc25903e800273f7e980c0553060858a68glennrp (image->colormap[i].red != (Quantum) QuantumRange))) 619dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickFalse); 620dbb105fc25903e800273f7e980c0553060858a68glennrp } 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 623dbb105fc25903e800273f7e980c0553060858a68glennrp for (y=0; y < (ssize_t) image->rows; y++) 624dbb105fc25903e800273f7e980c0553060858a68glennrp { 625dbb105fc25903e800273f7e980c0553060858a68glennrp p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 626dbb105fc25903e800273f7e980c0553060858a68glennrp if (p == (const PixelPacket *) NULL) 627dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickFalse); 628dbb105fc25903e800273f7e980c0553060858a68glennrp for (x=(ssize_t) image->columns-1; x >= 0; x--) 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 642d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 754d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER > 10011) 755bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic size_t WriteBlobMSBULong(Image *image,const size_t value) 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 777a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp#if defined(JNG_SUPPORTED) 7783ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 785a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp#endif 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 802e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Writing %c%c%c%c chunk, length: %.20g", 803e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 805d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 811d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 925e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy "Expected %.20g bytes; found %.20g bytes",(double) length, 926e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) check); 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 954bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1027bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy check=(png_size_t) WriteBlob(image,(size_t) length,data); 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1041bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 1050bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) a->colors; i++) 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 10583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 10673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 1087bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 1089bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1097bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1135bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.left=(ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 1136bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.right=(ssize_t) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 1137bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.top=(ssize_t) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 1138bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.bottom=(ssize_t) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 1155bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy Read two ssize_ts from CLON, MOVE or PAST chunk 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 11578182b0758e3429fb8dcd1700f09643fd4d80a41ccristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 11588182b0758e3429fb8dcd1700f09643fd4d80a41ccristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11678182b0758e3429fb8dcd1700f09643fd4d80a41ccristystatic long mng_get_long(unsigned char *p) 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11698182b0758e3429fb8dcd1700f09643fd4d80a41ccristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 11813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 1183faa852bad40107edae19405e76a299057668d795glennrp#if PNG_LIBPNG_VER < 10500 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 1185faa852bad40107edae19405e76a299057668d795glennrp#else 1186faa852bad40107edae19405e76a299057668d795glennrp png_longjmp(ping,1); 1187faa852bad40107edae19405e76a299057668d795glennrp#endif 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1200cc23b9a188db6b1f240825f6d4c52310f5f69765cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING,message); 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1242bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 1273f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy length=(png_uint_32) StringToLong(sp); 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 1294bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) nibbles; i++) 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 13433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 13453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1352bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.width=(size_t) ((chunk->data[0] << 24) | 13533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 1354bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.height=(size_t) ((chunk->data[4] << 24) | 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 13893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 13913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 13933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 13993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 1409faa852bad40107edae19405e76a299057668d795glennrp pass, 1410faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth, 1411faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, 1412faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method, 1413faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method, 1414faa852bad40107edae19405e76a299057668d795glennrp ping_filter_method, 1415faa852bad40107edae19405e76a299057668d795glennrp ping_num_trans; 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 142005eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp UShortPixelPacket 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1423faa852bad40107edae19405e76a299057668d795glennrp png_bytep 1424faa852bad40107edae19405e76a299057668d795glennrp ping_trans_alpha; 1425faa852bad40107edae19405e76a299057668d795glennrp 1426faa852bad40107edae19405e76a299057668d795glennrp png_color_16p 1427faa852bad40107edae19405e76a299057668d795glennrp ping_background, 1428faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color; 1429faa852bad40107edae19405e76a299057668d795glennrp 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 14383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 14393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1440faa852bad40107edae19405e76a299057668d795glennrp png_uint_32 1441faa852bad40107edae19405e76a299057668d795glennrp ping_height, 1442faa852bad40107edae19405e76a299057668d795glennrp ping_width, 1443faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes; 1444faa852bad40107edae19405e76a299057668d795glennrp 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1451bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 14563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 14585c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 14593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1460bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 14693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1470bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 14713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 14873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1489f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 149225c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if (PNG_LIBPNG_VER < 10200) 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 149861b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 149961b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 150061b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 150161b4c957269727a0a2526edc2331881da8346100glennrp { 150261b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 150361b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 150461b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 150561b4c957269727a0a2526edc2331881da8346100glennrp } 150661b4c957269727a0a2526edc2331881da8346100glennrp# endif 150761b4c957269727a0a2526edc2331881da8346100glennrp#endif 150861b4c957269727a0a2526edc2331881da8346100glennrp 150961b4c957269727a0a2526edc2331881da8346100glennrp 1510ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 15303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 1539faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 15403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1546f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 15503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 15527b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 15537b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 15547b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 15557b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1561faa852bad40107edae19405e76a299057668d795glennrp 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 15753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1595991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp#if (PNG_LIBPNG_VER < 10400) 1596991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 1597991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 16083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 16103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1611991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# endif 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 1615faa852bad40107edae19405e76a299057668d795glennrp 1616faa852bad40107edae19405e76a299057668d795glennrp png_get_IHDR(ping,ping_info,&ping_width,&ping_height, 1617faa852bad40107edae19405e76a299057668d795glennrp &ping_bit_depth,&ping_color_type, 1618faa852bad40107edae19405e76a299057668d795glennrp &ping_interlace_method,&ping_compression_method, 1619faa852bad40107edae19405e76a299057668d795glennrp &ping_filter_method); 1620faa852bad40107edae19405e76a299057668d795glennrp 1621faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_num_trans, 1622faa852bad40107edae19405e76a299057668d795glennrp &ping_trans_color); 1623faa852bad40107edae19405e76a299057668d795glennrp 1624faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_bKGD(ping, ping_info, &ping_background); 1625faa852bad40107edae19405e76a299057668d795glennrp 1626faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1628faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 1629faa852bad40107edae19405e76a299057668d795glennrp { 1630faa852bad40107edae19405e76a299057668d795glennrp png_set_packing(ping); 1631faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth = 8; 1632faa852bad40107edae19405e76a299057668d795glennrp } 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1634faa852bad40107edae19405e76a299057668d795glennrp 1635faa852bad40107edae19405e76a299057668d795glennrp image->depth=ping_bit_depth; 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 1637faa852bad40107edae19405e76a299057668d795glennrp image->interlace=ping_interlace_method != 0 ? PNGInterlace : NoInterlace; 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1641e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " PNG width: %.20g, height: %.20g", 1642e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) ping_width, (double) ping_height); 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color_type: %d, bit_depth: %d", 1645faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, ping_bit_depth); 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG compression_method: %d", 1648faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method); 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG interlace_method: %d, filter_method: %d", 1651faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method,ping_filter_method); 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1654faa852bad40107edae19405e76a299057668d795glennrp#ifdef PNG_READ_iCCP_SUPPORTED 1655faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_iCCP)) 16563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression; 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy info, 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name; 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 16653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_length; 16663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, 16683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &profile_length); 16693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile_length != 0) 16703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 16723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 16763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG iCCP chunk."); 16773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(profile_length); 16783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetStringInfoDatum(profile,(const unsigned char *) info); 16793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,"icc",profile); 16803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 16813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 16823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 16833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sRGB_SUPPORTED) 16853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intent; 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_srgb) 1690e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent=PNG_RenderingIntent_to_Magick_RenderingIntent( 1691e610a071534e448c46460a5aa39ede33bf56b329glennrp mng_info->global_srgb_intent); 16923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_sRGB(ping,ping_info,&intent)) 16933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1694e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent=PNG_RenderingIntent_to_Magick_RenderingIntent( 1695e610a071534e448c46460a5aa39ede33bf56b329glennrp intent); 16963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 16973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1698e610a071534e448c46460a5aa39ede33bf56b329glennrp " Reading PNG sRGB chunk: rendering_intent: %d",intent); 16993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy double 17043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy file_gamma; 17053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1706faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_gAMA(ping,ping_info,&file_gamma)) 1707faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_gama) 1708faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,mng_info->global_gamma); 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_gAMA(ping,ping_info,&file_gamma)) 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=(float) file_gamma; 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 17143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG gAMA chunk: gamma: %f",file_gamma); 17153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1717faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 1718faa852bad40107edae19405e76a299057668d795glennrp { 1719faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_chrm != MagickFalse) 1720faa852bad40107edae19405e76a299057668d795glennrp { 1721faa852bad40107edae19405e76a299057668d795glennrp (void) png_set_cHRM(ping,ping_info, 1722faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.x, 1723faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.y, 1724faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.x, 1725faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.y, 1726faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.x, 1727faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.y, 1728faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.x, 1729faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.y); 1730faa852bad40107edae19405e76a299057668d795glennrp } 1731faa852bad40107edae19405e76a299057668d795glennrp } 1732faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_cHRM(ping,ping_info, 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.x, 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.y, 17373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.x, 17383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.y, 17393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.x, 17403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.y, 17413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.x, 17423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.y); 17433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 17443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 17453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG cHRM chunk."); 17463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1747e610a071534e448c46460a5aa39ede33bf56b329glennrp if (image->rendering_intent != UndefinedIntent) 17483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1749e610a071534e448c46460a5aa39ede33bf56b329glennrp png_set_sRGB(ping,ping_info, 1750e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 1751e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent)); 1752faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,0.45455f); 1753faa852bad40107edae19405e76a299057668d795glennrp png_set_cHRM(ping,ping_info, 1754faa852bad40107edae19405e76a299057668d795glennrp 0.6400f, 0.3300f, 0.3000f, 0.6000f, 1755faa852bad40107edae19405e76a299057668d795glennrp 0.1500f, 0.0600f, 0.3127f, 0.3290f); 17563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 1758faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) 17593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=png_get_x_offset_pixels(ping, ping_info); 17613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=png_get_y_offset_pixels(ping, ping_info); 17623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 17633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 17643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1765e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading PNG oFFs chunk: x: %.20g, y: %.20g.",(double) 1766e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy image->page.x,(double) image->page.y); 17673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 1770faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 1771faa852bad40107edae19405e76a299057668d795glennrp { 1772faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_phys) 1773faa852bad40107edae19405e76a299057668d795glennrp { 1774faa852bad40107edae19405e76a299057668d795glennrp png_set_pHYs(ping,ping_info, 1775faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_x_pixels_per_unit, 1776faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_y_pixels_per_unit, 1777faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_phys_unit_type); 1778faa852bad40107edae19405e76a299057668d795glennrp } 1779faa852bad40107edae19405e76a299057668d795glennrp } 1780faa852bad40107edae19405e76a299057668d795glennrp 1781faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 17853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image resolution. 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, 17940881b52ab4fee8427578a694081946c4c4e92b35cristy &unit_type); 17950881b52ab4fee8427578a694081946c4c4e92b35cristy image->x_resolution=(double) x_resolution; 17960881b52ab4fee8427578a694081946c4c4e92b35cristy image->y_resolution=(double) y_resolution; 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 18003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 18013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 18023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1805e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading PNG pHYs chunk: xres: %.20g, yres: %.20g, units: %d.", 1806e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) x_resolution,(double) y_resolution,unit_type); 18073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1809faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 18103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 18123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 18133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 18183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((number_colors == 0) && 1819faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 18203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte_length) 18223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,mng_info->global_plte, 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_plte_length); 1825faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length) 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length > 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length) 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "global tRNS has more entries than global PLTE", 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_tRNS(ping,ping_info,mng_info->global_trns, 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_trns_length,NULL); 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ( 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index || 18413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1842faa852bad40107edae19405e76a299057668d795glennrp png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 18483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_saved_bkgd_index) 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=mng_info->saved_bkgd_index; 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1851faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping, ping_info, PNG_INFO_bKGD)) 1852faa852bad40107edae19405e76a299057668d795glennrp background.index=ping_background->index; 18533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 18543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].red; 18553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 18563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].green; 18573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].blue; 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No global PLTE in file","`%s'", 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 18673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 1871faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_bkgd && 1872faa852bad40107edae19405e76a299057668d795glennrp (!png_get_valid(ping,ping_info,PNG_INFO_bKGD))) 18733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_info->mng_global_bkgd; 1874faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 18753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image background color. 18783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG bKGD chunk."); 18822cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth == MAGICKCORE_QUANTUM_DEPTH) 18833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1884faa852bad40107edae19405e76a299057668d795glennrp image->background_color.red=ping_background->red; 1885faa852bad40107edae19405e76a299057668d795glennrp image->background_color.green=ping_background->green; 1886faa852bad40107edae19405e76a299057668d795glennrp image->background_color.blue=ping_background->blue; 18873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18882cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else /* Scale background components to 16-bit */ 18893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18902cbb4489df0a2a31907769956f217d4b9d982bd0glennrp unsigned int 18912cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale; 18922cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 18932cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 18942cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18952cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " raw ping_background=(%d,%d,%d).",ping_background->red, 18962cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green,ping_background->blue); 18972cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 18982cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 1; 18992cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth == 1) 19002cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 255; 19012cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else if (ping_bit_depth == 2) 19022cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 85; 19032cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else if (ping_bit_depth == 4) 19042cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 17; 19052cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth <= 8) 19062cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale *= 257; 19072cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 19082cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->red *= bkgd_scale; 19092cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green *= bkgd_scale; 19102cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->blue *= bkgd_scale; 19112cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 19122cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 19132cbb4489df0a2a31907769956f217d4b9d982bd0glennrp { 19142cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19152cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " bkgd_scale=%d.",bkgd_scale); 19162cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19172cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " ping_background=(%d,%d,%d).",ping_background->red, 19182cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green,ping_background->blue); 19192cbb4489df0a2a31907769956f217d4b9d982bd0glennrp } 19202cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 19213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 1922faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->red); 19233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 1924faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->green); 19253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 1926faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->blue); 1927f17da7472c6195cfc91626d98d166cae04345d34cristy image->background_color.opacity=OpaqueOpacity; 19282cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 19292cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 19302cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1931e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->background_color=(%.20g,%.20g,%.20g).", 1932e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.red, 1933e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.green, 1934e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.blue); 19353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 19393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 19403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 19413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 1942faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 19433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 19453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 19463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 19473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 19493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 195035ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t 195135ef824baa82511126ff0072ae30eee0da9c05a3cristy one=1; 195235ef824baa82511126ff0072ae30eee0da9c05a3cristy 19533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 19563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1957f9cca6af1ff9b913c32a2cec81eda059877a8832cristy max_sample = (int) ((one << ping_bit_depth) - 1); 19583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1959faa852bad40107edae19405e76a299057668d795glennrp if ((ping_color_type == PNG_COLOR_TYPE_GRAY && 1960faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->gray > max_sample) || 1961faa852bad40107edae19405e76a299057668d795glennrp (ping_color_type == PNG_COLOR_TYPE_RGB && 1962faa852bad40107edae19405e76a299057668d795glennrp ((int)ping_trans_color->red > max_sample || 1963faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->green > max_sample || 1964faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->blue > max_sample))) 19653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 19693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 1970faa852bad40107edae19405e76a299057668d795glennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 19713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 19723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 19743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 197505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.red= (unsigned short)(ping_trans_color->red); 197605eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.green= (unsigned short) (ping_trans_color->green); 197705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.blue= (unsigned short) (ping_trans_color->blue); 197805eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity= (unsigned short) (ping_trans_color->gray); 197905eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp 1980faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 19813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19820f111984738842d27d04aed2a3f823d82a943506glennrp#if (MAGICKCORE_QUANTUM_DEPTH == 8) 19830f111984738842d27d04aed2a3f823d82a943506glennrp if (ping_bit_depth < MAGICKCORE_QUANTUM_DEPTH) 19840f111984738842d27d04aed2a3f823d82a943506glennrp#endif 198505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity=(unsigned short) ( 19860f111984738842d27d04aed2a3f823d82a943506glennrp ping_trans_color->gray * 198705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp (65535L/((1UL << ping_bit_depth)-1))); 19880f111984738842d27d04aed2a3f823d82a943506glennrp 198905eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp#if (MAGICKCORE_QUANTUM_DEPTH == 8) 199005eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp else 199105eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity=(unsigned short) ( 199205eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp (ping_trans_color->gray * 65535L)/ 199305eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ((1UL << ping_bit_depth)-1)); 19940f111984738842d27d04aed2a3f823d82a943506glennrp#endif 19950f111984738842d27d04aed2a3f823d82a943506glennrp if (logging != MagickFalse) 19960f111984738842d27d04aed2a3f823d82a943506glennrp { 19970f111984738842d27d04aed2a3f823d82a943506glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19980f111984738842d27d04aed2a3f823d82a943506glennrp " Raw tRNS graylevel is %d.",ping_trans_color->gray); 19990f111984738842d27d04aed2a3f823d82a943506glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20000f111984738842d27d04aed2a3f823d82a943506glennrp " scaled graylevel is %d.",transparent_color.opacity); 20010f111984738842d27d04aed2a3f823d82a943506glennrp } 20023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 20033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 20043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 20053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 20093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 20103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2011faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) 20123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 20133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 2016faa852bad40107edae19405e76a299057668d795glennrp 20173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 2018faa852bad40107edae19405e76a299057668d795glennrp 2019faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes=png_get_rowbytes(ping,ping_info); 2020faa852bad40107edae19405e76a299057668d795glennrp 20213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 20233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 2025bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.right=(ssize_t) ping_width; 20263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2027bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.bottom=(ssize_t) ping_height; 20283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 20293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2030faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_width=ping_width; 2031faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_height=ping_height; 20323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 20333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 20343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 20363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 20383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 2040faa852bad40107edae19405e76a299057668d795glennrp image->columns=ping_width; 2041faa852bad40107edae19405e76a299057668d795glennrp image->rows=ping_height; 2042faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 2043faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2044faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY)) 20453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2046befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy size_t 2047befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one; 2048befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy 20493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 2050befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one=1; 2051befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy image->colors=one << ping_bit_depth; 20523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 20533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 20543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 20553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 20563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 20573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2059faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 20603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 20633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 20653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 20663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 2068bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) number_colors; 20693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 20723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 20763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 20793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 20813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2082faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 20833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 20863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 20883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 20893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 2091bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 20923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 20943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 20953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 20963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 20993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2100bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 21013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 21023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2103faa852bad40107edae19405e76a299057668d795glennrp scale=(QuantumRange/((1UL << ping_bit_depth)-1)); 21043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 21053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 2106bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 21073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 21093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 21103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 21113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 21163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 21183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 21190ca69b143ae83fb90449a01e0b0900cb83a1cbc8glennrp if ((mng_info->mng_type == 0 && (image->ping != MagickFalse)) || ( 2120347e40f2829bd04656674c58927cc50cda195475glennrp (image_info->number_scenes != 0) && (mng_info->scenes_found > (ssize_t) 2121347e40f2829bd04656674c58927cc50cda195475glennrp (image_info->first_scene+image_info->number_scenes)))) 21223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2125e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Skipping PNG image data for scene %.20g",(double) 21263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 21273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 21283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2129f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 21303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 21343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 21353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 21393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 21403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 2141faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes*sizeof(*png_pixels)); 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2143faa852bad40107edae19405e76a299057668d795glennrp png_pixels=(unsigned char *) AcquireQuantumMemory(ping_rowbytes, 21443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 21453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 21463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 21473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 21503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 21523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2153faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 21543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 21573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 21593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2160f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 21613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 21633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 21643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 21653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 21663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 21693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 21707b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 21717b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 21727b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 21737b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 21743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 21753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2176ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2177ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2178ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 21793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 21803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 21813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 21843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 21863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 21873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 21883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2189bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy depth=(ssize_t) ping_bit_depth; 21903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2191faa852bad40107edae19405e76a299057668d795glennrp image->matte=(((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 2192faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2193faa852bad40107edae19405e76a299057668d795glennrp (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? 2194faa852bad40107edae19405e76a299057668d795glennrp MagickTrue : MagickFalse; 21953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2196bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 21973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2199faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 22003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 22023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2203abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 22043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 22053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 22063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 22073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 22083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 22103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 22113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 22123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 22143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 2215faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 22163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2217bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 22183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 2221faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) && 22223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 22233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 22253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 22263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 22293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2231faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB) 22323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2233faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 2234bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 22353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 22433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 22443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 22453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 22473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 22483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 22513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2253bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 22543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 22623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2264faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 2265bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (4*image->columns); x != 0; x--) 22663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2270faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 2271bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (2*image->columns); x != 0; x--) 22723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 22743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2277faa852bad40107edae19405e76a299057668d795glennrp if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_GRAY) 22783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 22793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 2280faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY || 2281faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 22823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 22843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 22853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 22863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2287faa852bad40107edae19405e76a299057668d795glennrp else if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_RGB) 22883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 22893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 2290faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB || 2291faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 22943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 22953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2297faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 22983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 22993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 23003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 2301faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY) 23023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 23033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 2304faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 2307faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 2310faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 23123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 23133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23177a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 23187a287bfadeadea12e47c2376ca78a5d101687142cristy { 2319cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2320cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 23217a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 23227a287bfadeadea12e47c2376ca78a5d101687142cristy break; 23237a287bfadeadea12e47c2376ca78a5d101687142cristy } 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 23253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23277a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 23313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 23363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 23393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 23413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 23423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 23453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2346faa852bad40107edae19405e76a299057668d795glennrp image->matte=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 23483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 23493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 23503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 23513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2352bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 23533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2355faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 23563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 23603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 23613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23625c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 23633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 23643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2365faa852bad40107edae19405e76a299057668d795glennrp switch (ping_bit_depth) 23663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 23683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2369bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 23703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 23713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2372bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-7; x > 0; x-=8) 23733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 23763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 23773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 23793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2380bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (bit=7; bit >= (ssize_t) (8-(image->columns % 8)); bit--) 23813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 23823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2387bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-3; x > 0; x-=4) 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 23903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 23913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 23923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 23933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2396bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=3; i >= (ssize_t) (4-(image->columns % 4)); i--) 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 24023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2403bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x > 0; x-=2) 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 24063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 24073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 24093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 24133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2414faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 2415bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 24213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 24223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 24243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 24253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2427bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 24283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 24323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2433bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 2436bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 24433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 24453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2447faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 24513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 24533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 24553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 2456bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 24603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 24613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 24643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2467faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 24683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 24703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 247146f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 24723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 24733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 24743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 24773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2478faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 24793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 24813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 24903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 24943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2496bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 249780ac8b9110f1adf7202ed1f4f244cbb1a4e1a56fcristy indexes[x]=(IndexPacket) (*r++); 24983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25007a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 25017a287bfadeadea12e47c2376ca78a5d101687142cristy { 2502cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2503cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 25047a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 25057a287bfadeadea12e47c2376ca78a5d101687142cristy break; 25067a287bfadeadea12e47c2376ca78a5d101687142cristy } 25073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25087a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 25093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 25113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 25123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2516b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2517b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 25185c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (image->storage_class == PseudoClass) 25195c6f789db7a30bad01ace12b09ad9cd471339e94cristy { 2520aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy MagickBooleanType 25215c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte; 25225c6f789db7a30bad01ace12b09ad9cd471339e94cristy 25235c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte=image->matte; 25245c6f789db7a30bad01ace12b09ad9cd471339e94cristy image->matte=MagickFalse; 25255c6f789db7a30bad01ace12b09ad9cd471339e94cristy (void) SyncImage(image); 2526aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy image->matte=matte; 25275c6f789db7a30bad01ace12b09ad9cd471339e94cristy } 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 2531bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) image_info->first_scene && image->delay != 0) 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 25353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 25363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2538f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2545faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 25543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2555c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2556e805a647adebb9faefcbd7f9a73ca8e91870614acristy#if 1 /* balfour fix */ 2557c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2558c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2559c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2560c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2561faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2562c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2563faa852bad40107edae19405e76a299057668d795glennrp for (x=0; x < ping_num_trans; x++) 2564c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2565e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp image->colormap[x].opacity = 2566e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ScaleCharToQuantum((unsigned char)(255-ping_trans_alpha[x])); 2567c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2568c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2569faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2570c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 25715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (x=0; x < (int) image->colors; x++) 2572c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 257305eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantumToShort(image->colormap[x].red) == 257405eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity) 2575c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2576c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2577c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2578c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2579c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2580d027259799c88ed5e4f12d21a5366031bfef0904cristy (void) SyncImage(image); 2581c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2582c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2583c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2584c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2585bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 2586c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2587c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2588c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2589c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2590c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 25915c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 2592c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2593bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 2594c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 259505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantumToShort(q->red) == transparent_color.red && 259605eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->green) == transparent_color.green && 259705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->blue) == transparent_color.blue) 2598c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2599c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2600c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2601c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2602c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2603c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2604c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2605c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2606c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2607c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2608c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2609c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2610c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2611bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26175c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 26233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2624faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2625bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26275c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2628faa852bad40107edae19405e76a299057668d795glennrp if (indexpacket < ping_num_trans) 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 2630bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (255-ping_trans_alpha[(ssize_t) indexpacket])); 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2632ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2635faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2636bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26385c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2639bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy q->red=image->colormap[(ssize_t) indexpacket].red; 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 264205eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantomToShort(q->red) == transparent_color.opacity) 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2645ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 26463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2650bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 265205eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantumToShort(q->red) == transparent_color.red && 265305eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->green) == transparent_color.green && 265405eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->blue) == transparent_color.blue) 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2657ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2663c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 26643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2666b40fc46321caef77f32743c0dc22e9a4bcc88e71cristy if ((ping_color_type == PNG_COLOR_TYPE_GRAY) || 2667b40fc46321caef77f32743c0dc22e9a4bcc88e71cristy (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) 2668b40fc46321caef77f32743c0dc22e9a4bcc88e71cristy image->colorspace=GRAYColorspace; 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 2670bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) num_text; i++) 26713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 26903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 26913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 26923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 26953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 26963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 26983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 26993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 27003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 27013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 27043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 27063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 27083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 27103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 27133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 271573bd4a51b419e914565bdf204bf1540dc4c8ee26cristy AcquireMagickMemory(sizeof(MngBuffer)); 27163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 27173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 27283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 27383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 27393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 27403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 27413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 27423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 27433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 27443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 27463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 27473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 2748faa852bad40107edae19405e76a299057668d795glennrp if (ping_width > 250000L || ping_height > 250000L) 27493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 2750faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->width=ping_width; 2751faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->height=ping_height; 2752faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->color_type=ping_color_type; 2753faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->sample_depth=ping_bit_depth; 2754faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->interlace_method=ping_interlace_method; 2755faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->compression_method= 2756faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method; 2757faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->filter_method=ping_filter_method; 2758faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 27593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 27613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 27623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 27643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 27653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 27683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 27703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 27713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 27723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 27743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 27783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 27833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 27853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 27873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2788f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 27893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 27943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 27953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 27973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 27983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 28003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 28013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 28023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 28033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 28043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 28063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 28073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 28103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 28123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 28133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 28153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 28163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 28193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 28203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 28233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 28253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 28263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 28273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 28283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 28293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 28313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 28323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 28333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 28343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 28353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 28413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 28453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 284773bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 28593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 28603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 28633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 28653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 28673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 28733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 28803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 28853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 28943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 29063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 29273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 29293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 29373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 29383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 29393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 29403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 29413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 29423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 29433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 29443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 29453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 29473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2950bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 29513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 29523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 29543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 29553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2973bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2989bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3053e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading JNG chunk type %c%c%c%c, length: %.20g", 3054e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 3065bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3082bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 3084bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3099f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " jng_width: %16lu",(unsigned long) jng_width); 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3101f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " jng_width: %16lu",(unsigned long) jng_height); 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 314473bd4a51b419e914565bdf204bf1540dc4c8ee26cristy color_image_info=(ImageInfo *)AcquireMagickMemory(sizeof(ImageInfo)); 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 316473bd4a51b419e914565bdf204bf1540dc4c8ee26cristy AcquireMagickMemory(sizeof(ImageInfo)); 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3241bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(alpha_image,(size_t) length); 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 32903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 33028182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->gamma=((float) mng_get_long(p))*0.00001; 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33118182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 33128182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 33138182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 33148182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 33158182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 33168182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 33178182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 33188182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3328e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent= 3329e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_to_Magick_RenderingIntent(p[0]); 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33488182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->page.x=mng_get_long(p); 33498182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->page.y=mng_get_long(&p[4]); 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33658182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->x_resolution=(double) mng_get_long(p); 33668182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->y_resolution=(double) mng_get_long(&p[4]); 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 3444bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 3477bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 3483bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 3486bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 35533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 361373bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(*mng_info)); 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3671bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile ssize_t 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3696bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3702bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3719bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 372838ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp /* These delays are all measured in image ticks_per_second, 372938ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp * not in MNG ticks_per_second 373038ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp */ 3731bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 378873bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3817bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 3818bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3864e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading MNG chunk type %c%c%c%c, length: %.20g", 3865e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 3878bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3917bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 3919bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3924e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " MNG width: %.20g",(double) mng_info->mng_width); 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3926e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " MNG height: %.20g",(double) mng_info->mng_height); 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 39298182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->ticks_per_second=(size_t) mng_get_long(p); 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 39408182b0758e3429fb8dcd1700f09643fd4d80a41ccristy simplicity=(size_t) mng_get_long(p); 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 3966e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (void) FormatMagickString(page_geometry,MaxTextExtent, 3967e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy "%.20gx%.20g+0+0",(double) mng_info->mng_width,(double) 3968f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->mng_height); 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 3970bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.right=(ssize_t) mng_info->mng_width; 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 3972bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.bottom=(ssize_t) mng_info->mng_height; 39733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39908182b0758e3429fb8dcd1700f09643fd4d80a41ccristy final_delay=(png_uint_32) mng_get_long(&p[2]); 39918182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4002e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " final_delay=%.20g",(double) final_delay); 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4004e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->iterations=%.20g",(double) image->iterations); 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4048bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->x_off[object_id]=(ssize_t) ((p[4] << 24) | (p[5] << 16) | 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 4050bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->y_off[object_id]=(ssize_t) ((p[8] << 24) | (p[9] << 16) | 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4055e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " x_off[%d]: %.20g",object_id,(double) 4056f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->x_off[object_id]); 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4058e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " y_off[%d]: %.20g",object_id,(double) 4059f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->y_off[object_id]); 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 4122bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) (length/3); i++) 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 412835ef824baa82511126ff0072ae30eee0da9c05a3cristy mng_info->global_plte_length=(unsigned int) (length/3); 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 4150bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 41543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 415712560f31d66b4ef4afdcff2c20807c555dcf2f7dcristy mng_info->global_trns_length=(unsigned int) length; 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4165bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41688182b0758e3429fb8dcd1700f09643fd4d80a41ccristy igamma=mng_get_long(p); 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41858182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 41868182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 41878182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 41898182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[12]); 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 41918182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[16]); 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 41938182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[20]); 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 41958182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[24]); 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 41978182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[28]); 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4212e610a071534e448c46460a5aa39ede33bf56b329glennrp mng_info->global_srgb_intent= 4213e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_to_Magick_RenderingIntent(p[0]); 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 4255bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy while (*p && ((p-chunk) < (ssize_t) length)) 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 4258bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((p-chunk) < (ssize_t) (length-4)) 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42718182b0758e3429fb8dcd1700f09643fd4d80a41ccristy frame_delay=1UL*image->ticks_per_second* 42728182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(p); 42738182b0758e3429fb8dcd1700f09643fd4d80a41ccristy if (mng_info->ticks_per_second != 0) 42748182b0758e3429fb8dcd1700f09643fd4d80a41ccristy frame_delay/=mng_info->ticks_per_second; 4275bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp else 4276bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_delay=PNG_UINT_31_MAX; 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4282e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Framing_delay=%.20g",(double) frame_delay); 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4286bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout=1UL*image->ticks_per_second* 4287bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp mng_get_long(p); 4288bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp if (mng_info->ticks_per_second != 0) 4289bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout/=mng_info->ticks_per_second; 4290bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp else 4291bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout=PNG_UINT_31_MAX; 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 42933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4297e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Framing_timeout=%.20g",(double) frame_timeout); 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 43043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4306e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Frame_clipping: L=%.20g R=%.20g T=%.20g B=%.20g", 4307e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) fb.left,(double) fb.right,(double) fb.top, 4308e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) fb.bottom); 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 4316bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_width=(size_t) (mng_info->clip.right 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 4318bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_height=(size_t) (mng_info->clip.bottom 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4326e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " subframe_width=%.20g, subframe_height=%.20g",(double) 4327e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy subframe_width,(double) subframe_height); 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 43503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 43573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4366e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", 4367e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.left,(double) mng_info->clip.right, 4368e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.top,(double) mng_info->clip.bottom); 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 44243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4427bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4430bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (j=0; j < (ssize_t) length; j+=2) 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4442bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 4451bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=(ssize_t) first_object; i <= (ssize_t) last_object; i++) 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4474bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t loop_iters=1; 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44808182b0758e3429fb8dcd1700f09643fd4d80a41ccristy loop_iters=mng_get_long(&chunk[1]); 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4483e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " LOOP level %.20g has %.20g iterations ",(double) loop_level, 4484e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) loop_iters); 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4518e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " ENDL: LOOP level %.20g has %.20g remaining iterations ", 4519e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) loop_level,(double) 4520f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->loop_count[loop_level]); 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 45603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 45993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 47028182b0758e3429fb8dcd1700f09643fd4d80a41ccristy (size_t) mng_get_long(p); 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 47048182b0758e3429fb8dcd1700f09643fd4d80a41ccristy (size_t) mng_get_long(&p[4]); 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 4727bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 4729bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 47533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 47938182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image_width=(size_t) mng_get_long(p); 47948182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image_height=(size_t) mng_get_long(&p[4]); 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 4807bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.right < (ssize_t) mng_info->mng_width) || 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 4809bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.bottom < (ssize_t) mng_info->mng_height)) 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4848e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted transparent background layer, W=%.20g, H=%.20g", 4849e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->mng_width,(double) mng_info->mng_height); 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4895e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", 4896e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.left,(double) mng_info->clip.right, 4897e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.top,(double) mng_info->clip.bottom); 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 4946bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy offset=SeekBlob(image,-((ssize_t) length+12),SEEK_CUR); 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 50034e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width += (png_uint_32) ((image->columns-2)*(mng_info->magn_mx)); 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50074e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width=(png_uint_32) image->columns; 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 50134e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width += (png_uint_32) ((image->columns-3)*(mng_info->magn_mx-1)); 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 50214d368204aa5ac1b8716da0054988319952030438cristy magnified_height += (png_uint_32) ((image->rows-2)*(mng_info->magn_my)); 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50254e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_height=(png_uint_32) image->rows; 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 50314e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_height += (png_uint_32) ((image->rows-3)*(mng_info->magn_my-1)); 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5042bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5046bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5091bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 5095bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5131e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Magnify the rows to %.20g",(double) large_image->rows); 5132bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 5147bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 5150bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 5151bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-2) 5152bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5153bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy <= 1 && y == (ssize_t) image->rows-1) 5154bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5155bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-1) 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5158bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_my; 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 5162bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (y < (ssize_t) image->rows-1) 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5173bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert(yy < (ssize_t) large_image->rows); 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 5179bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51815c6f789db7a30bad01ace12b09ad9cd471339e94cristy /* TO DO: get color as function of indexes[x] */ 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 5199bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).red=(QM) (((ssize_t) (2*i*((*n).red 5200bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).red)+m))/((ssize_t) (m*2)) 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 5202bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).green=(QM) (((ssize_t) (2*i*((*n).green 5203bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).green)+m))/((ssize_t) (m*2)) 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 5205bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).blue=(QM) (((ssize_t) (2*i*((*n).blue 5206bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).blue)+m))/((ssize_t) (m*2)) 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 5209bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 5212bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).opacity); 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5232bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) (2*i*((*n).opacity 5233bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m))/((ssize_t) (m*2)) 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5263e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Magnify the columns to %.20g",(double) image->columns); 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5265bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 5273bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (image->columns-length); 5274bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy x < (ssize_t) image->columns; x++) 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5276bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (x == (ssize_t) (image->columns-length)) 5277bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_ml; 5278bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-2) 5279bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5280bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx <= 1 && x == (ssize_t) image->columns-1) 5281bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5282bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-1) 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5285bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mx; 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 5302bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).red); 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 5305bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy +m)/((ssize_t) (m*2))+(*pixels).green); 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 5308bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).blue); 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5311bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m)/((ssize_t) (m*2)) 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5334bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m) /((ssize_t) (m*2)) 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5352bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 5355bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 5411bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.width=(size_t) (crop_box.right-crop_box.left); 5412bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.height=(size_t) (crop_box.bottom-crop_box.top); 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 54333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 54343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 54433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 54493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 54523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 54553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5466bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->background_color.red >> 8) & 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 5468bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.red & 0xff)) && 5469bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.green >> 8) & 0xff) 5470bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.green & 0xff)) && 5471bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.blue >> 8) & 0xff) 5472bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.blue & 0xff))); 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5477bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (indx=0; indx < (ssize_t) image->colors; indx++) 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5479bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->colormap[indx].red >> 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 5481bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].red & 0xff)) && 5482bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].green >> 8) & 0xff) 5483bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].green & 0xff)) && 5484bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].blue >> 8) & 0xff) 5485bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].blue & 0xff))); 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5493bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5496bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5499bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5504bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 5507bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->red >> 8) & 0xff) == 5508bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->red & 0xff)) && 5509bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->green >> 8) & 0xff) == 5510bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->green & 0xff)) && 5511bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->blue >> 8) & 0xff) == 5512bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->blue & 0xff)) && 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 5514bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->opacity >> 8) & 0xff) == 5515bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->opacity & 0xff))))); 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 5537bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) (image_info->first_scene+image_info->number_scenes)) 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 55813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 55823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5655e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->delay=%.20g, final_delay=%.20g",(double) image->delay, 5656e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) final_delay); 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5667e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene 0 delay=%.20g",(double) image->delay); 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5672e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene %.20g delay=%.20g",(double) scene++,(double) image->delay); 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5684bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 57133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5733e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene 0 delay=%.20g dispose=%.20g",(double) image->delay, 5734e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->dispose); 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 5736f2faecf9facdbbb14fcba373365f9f691a9658e0cristy { 5737f2faecf9facdbbb14fcba373365f9f691a9658e0cristy image=GetNextImageInList(image); 5738f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5739e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene %.20g delay=%.20g dispose=%.20g",(double) scene++, 5740e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->delay,(double) image->dispose); 5741f2faecf9facdbbb14fcba373365f9f691a9658e0cristy } 5742f2faecf9facdbbb14fcba373365f9f691a9658e0cristy } 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 575025c1e2baba76d9cf3ec582f217f96af95259e747glennrp#else /* PNG_LIBPNG_VER > 10011 */ 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 576325c1e2baba76d9cf3ec582f217f96af95259e747glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 57713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5786bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% size_t RegisterPNGImage(void) 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5789bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristyModuleExport size_t RegisterPNGImage(void) 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 591118b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 591218b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 591318b17443128598500357da7bff2f01683cf32890cristy#endif 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 5945514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 5946514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 595125c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if PNG_LIBPNG_VER > 10011 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 59733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 59753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6037bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6058e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (void) printf("writing raw profile: type=%s, length=%.20g\n", 6059e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (char *) profile_type, (double) length); 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 6079f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (png_size_t) (dp-text[0].text),"%8lu ",(unsigned long) length); 60803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 6081bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 61143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6146dbb105fc25903e800273f7e980c0553060858a68glennrp#if defined(PNG_SORT_PALETTE) 6147dbb105fc25903e800273f7e980c0553060858a68glennrp/* 6148dbb105fc25903e800273f7e980c0553060858a68glennrp%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 6149dbb105fc25903e800273f7e980c0553060858a68glennrp% % 6150dbb105fc25903e800273f7e980c0553060858a68glennrp% % 6151dbb105fc25903e800273f7e980c0553060858a68glennrp% % 6152747aad10b49e665a439b920009ed92cc08e58741glennrp% O p t i m i z e P N G C o l o r m a p % 6153dbb105fc25903e800273f7e980c0553060858a68glennrp% % 6154dbb105fc25903e800273f7e980c0553060858a68glennrp% % 6155dbb105fc25903e800273f7e980c0553060858a68glennrp% % 6156dbb105fc25903e800273f7e980c0553060858a68glennrp%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 6157dbb105fc25903e800273f7e980c0553060858a68glennrp% 6158991d11dd9c33e65872778b81aff1347cd2878154glennrp% OptimizePNGColormap compresses an image colormap removing any 6159991d11dd9c33e65872778b81aff1347cd2878154glennrp% duplicate and unused color entries and putting the transparent colors 6160dbb105fc25903e800273f7e980c0553060858a68glennrp% first. Returns MagickTrue on success, MagickFalse on error. 6161dbb105fc25903e800273f7e980c0553060858a68glennrp% 6162747aad10b49e665a439b920009ed92cc08e58741glennrp% The format of the OptimizePNGColormap method is: 6163dbb105fc25903e800273f7e980c0553060858a68glennrp% 6164747aad10b49e665a439b920009ed92cc08e58741glennrp% unsigned int OptimizePNGColormap(Image *image) 6165dbb105fc25903e800273f7e980c0553060858a68glennrp% 6166dbb105fc25903e800273f7e980c0553060858a68glennrp% A description of each parameter follows: 6167dbb105fc25903e800273f7e980c0553060858a68glennrp% 6168dbb105fc25903e800273f7e980c0553060858a68glennrp% o image: the address of a structure of type Image. 6169991d11dd9c33e65872778b81aff1347cd2878154glennrp% 6170991d11dd9c33e65872778b81aff1347cd2878154glennrp% o ping_plte_map: a mapping of indexes in image->colormap to those in 6171991d11dd9c33e65872778b81aff1347cd2878154glennrp% the revised colormap 6172991d11dd9c33e65872778b81aff1347cd2878154glennrp% 6173991d11dd9c33e65872778b81aff1347cd2878154glennrp% o opacity: opacity of pixels corresponding to the revised colormap 6174dbb105fc25903e800273f7e980c0553060858a68glennrp% 6175dbb105fc25903e800273f7e980c0553060858a68glennrp*/ 6176991d11dd9c33e65872778b81aff1347cd2878154glennrpstatic MagickBooleanType OptimizePNGColormap(Image *image, IndexPacket 6177991d11dd9c33e65872778b81aff1347cd2878154glennrp *ping_plte_map, IndexPacket *opacity) 6178dbb105fc25903e800273f7e980c0553060858a68glennrp{ 6179dbb105fc25903e800273f7e980c0553060858a68glennrp int 6180dbb105fc25903e800273f7e980c0553060858a68glennrp k; 6181dbb105fc25903e800273f7e980c0553060858a68glennrp 6182dbb105fc25903e800273f7e980c0553060858a68glennrp ssize_t 6183dbb105fc25903e800273f7e980c0553060858a68glennrp j, 6184dbb105fc25903e800273f7e980c0553060858a68glennrp new_number_colors, 6185dbb105fc25903e800273f7e980c0553060858a68glennrp number_colors, 6186dbb105fc25903e800273f7e980c0553060858a68glennrp y; 6187dbb105fc25903e800273f7e980c0553060858a68glennrp 6188dbb105fc25903e800273f7e980c0553060858a68glennrp register const IndexPacket 6189dbb105fc25903e800273f7e980c0553060858a68glennrp *indexes; 6190dbb105fc25903e800273f7e980c0553060858a68glennrp 6191dbb105fc25903e800273f7e980c0553060858a68glennrp register const PixelPacket 6192dbb105fc25903e800273f7e980c0553060858a68glennrp *p; 6193dbb105fc25903e800273f7e980c0553060858a68glennrp 6194dbb105fc25903e800273f7e980c0553060858a68glennrp IndexPacket 6195dbb105fc25903e800273f7e980c0553060858a68glennrp top_used; 6196dbb105fc25903e800273f7e980c0553060858a68glennrp 6197991d11dd9c33e65872778b81aff1347cd2878154glennrp MagickBooleanType 6198991d11dd9c33e65872778b81aff1347cd2878154glennrp remap_needed; 6199991d11dd9c33e65872778b81aff1347cd2878154glennrp 6200dbb105fc25903e800273f7e980c0553060858a68glennrp register ssize_t 6201dbb105fc25903e800273f7e980c0553060858a68glennrp i, 6202dbb105fc25903e800273f7e980c0553060858a68glennrp x; 6203dbb105fc25903e800273f7e980c0553060858a68glennrp 6204dbb105fc25903e800273f7e980c0553060858a68glennrp unsigned char 6205991d11dd9c33e65872778b81aff1347cd2878154glennrp marker[256], 6206dbb105fc25903e800273f7e980c0553060858a68glennrp have_transparency; 6207dbb105fc25903e800273f7e980c0553060858a68glennrp 6208dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6209dbb105fc25903e800273f7e980c0553060858a68glennrp Determine if colormap can be compressed. 6210dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6211dbb105fc25903e800273f7e980c0553060858a68glennrp assert(image != (Image *) NULL); 6212dbb105fc25903e800273f7e980c0553060858a68glennrp assert(image->signature == MagickSignature); 6213991d11dd9c33e65872778b81aff1347cd2878154glennrp 6214991d11dd9c33e65872778b81aff1347cd2878154glennrp remap_needed=MagickFalse; 6215991d11dd9c33e65872778b81aff1347cd2878154glennrp 6216dbb105fc25903e800273f7e980c0553060858a68glennrp if (image->debug != MagickFalse) 6217dbb105fc25903e800273f7e980c0553060858a68glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6218747aad10b49e665a439b920009ed92cc08e58741glennrp " OptimizePNGColormap %s (%.20g colors)",image->filename, 6219dbb105fc25903e800273f7e980c0553060858a68glennrp (double) image->colors); 6220991d11dd9c33e65872778b81aff1347cd2878154glennrp 6221991d11dd9c33e65872778b81aff1347cd2878154glennrp if (image->storage_class != PseudoClass) 6222dbb105fc25903e800273f7e980c0553060858a68glennrp { 6223dbb105fc25903e800273f7e980c0553060858a68glennrp if (image->debug != MagickFalse) 6224dbb105fc25903e800273f7e980c0553060858a68glennrp { 6225dbb105fc25903e800273f7e980c0553060858a68glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6226991d11dd9c33e65872778b81aff1347cd2878154glennrp " Could not compress colormap: image is not PseudoClass"); 6227dbb105fc25903e800273f7e980c0553060858a68glennrp } 6228991d11dd9c33e65872778b81aff1347cd2878154glennrp return(MagickTrue); 6229dbb105fc25903e800273f7e980c0553060858a68glennrp } 6230991d11dd9c33e65872778b81aff1347cd2878154glennrp 6231991d11dd9c33e65872778b81aff1347cd2878154glennrp if (image->colors == 1) 6232991d11dd9c33e65872778b81aff1347cd2878154glennrp return(MagickTrue); /* Nothing to do */ 6233991d11dd9c33e65872778b81aff1347cd2878154glennrp 6234991d11dd9c33e65872778b81aff1347cd2878154glennrp if (image-> colors == 0 || image->colors > 256) 6235dbb105fc25903e800273f7e980c0553060858a68glennrp { 6236991d11dd9c33e65872778b81aff1347cd2878154glennrp if (image->debug != MagickFalse) 6237991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6238991d11dd9c33e65872778b81aff1347cd2878154glennrp " Could not compress colormap with %d",(int) image->colors); 6239991d11dd9c33e65872778b81aff1347cd2878154glennrp 6240991d11dd9c33e65872778b81aff1347cd2878154glennrp return(MagickFalse); 6241dbb105fc25903e800273f7e980c0553060858a68glennrp } 6242991d11dd9c33e65872778b81aff1347cd2878154glennrp 6243dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6244dbb105fc25903e800273f7e980c0553060858a68glennrp Mark colors that are present. 6245dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6246dbb105fc25903e800273f7e980c0553060858a68glennrp number_colors=(ssize_t) image->colors; 6247dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < number_colors; i++) 6248dbb105fc25903e800273f7e980c0553060858a68glennrp { 6249dbb105fc25903e800273f7e980c0553060858a68glennrp marker[i]=MagickFalse; 6250dbb105fc25903e800273f7e980c0553060858a68glennrp opacity[i]=OpaqueOpacity; 6251dbb105fc25903e800273f7e980c0553060858a68glennrp } 6252991d11dd9c33e65872778b81aff1347cd2878154glennrp 6253dbb105fc25903e800273f7e980c0553060858a68glennrp top_used=0; 6254dbb105fc25903e800273f7e980c0553060858a68glennrp for (y=0; y < (ssize_t) image->rows; y++) 6255dbb105fc25903e800273f7e980c0553060858a68glennrp { 6256dbb105fc25903e800273f7e980c0553060858a68glennrp p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 6257991d11dd9c33e65872778b81aff1347cd2878154glennrp 6258dbb105fc25903e800273f7e980c0553060858a68glennrp if (p == (const PixelPacket *) NULL) 6259dbb105fc25903e800273f7e980c0553060858a68glennrp break; 6260991d11dd9c33e65872778b81aff1347cd2878154glennrp 6261dbb105fc25903e800273f7e980c0553060858a68glennrp indexes=GetVirtualIndexQueue(image); 6262991d11dd9c33e65872778b81aff1347cd2878154glennrp 6263dbb105fc25903e800273f7e980c0553060858a68glennrp if (image->matte != MagickFalse) 6264dbb105fc25903e800273f7e980c0553060858a68glennrp for (x=0; x < (ssize_t) image->columns; x++) 6265dbb105fc25903e800273f7e980c0553060858a68glennrp { 6266991d11dd9c33e65872778b81aff1347cd2878154glennrp i=(int) indexes[x]; 6267991d11dd9c33e65872778b81aff1347cd2878154glennrp marker[i]=MagickTrue; 6268991d11dd9c33e65872778b81aff1347cd2878154glennrp opacity[i]=GetOpacityPixelComponent(p); 6269991d11dd9c33e65872778b81aff1347cd2878154glennrp 6270991d11dd9c33e65872778b81aff1347cd2878154glennrp if (i > top_used) 6271991d11dd9c33e65872778b81aff1347cd2878154glennrp top_used=i; 6272dbb105fc25903e800273f7e980c0553060858a68glennrp p++; 6273dbb105fc25903e800273f7e980c0553060858a68glennrp } 6274991d11dd9c33e65872778b81aff1347cd2878154glennrp 6275dbb105fc25903e800273f7e980c0553060858a68glennrp else 6276dbb105fc25903e800273f7e980c0553060858a68glennrp for (x=0; x < (ssize_t) image->columns; x++) 6277dbb105fc25903e800273f7e980c0553060858a68glennrp { 6278991d11dd9c33e65872778b81aff1347cd2878154glennrp i=(int) indexes[x]; 6279991d11dd9c33e65872778b81aff1347cd2878154glennrp marker[i]=MagickTrue; 6280991d11dd9c33e65872778b81aff1347cd2878154glennrp if (i > top_used) 6281991d11dd9c33e65872778b81aff1347cd2878154glennrp top_used=i; 6282dbb105fc25903e800273f7e980c0553060858a68glennrp } 6283dbb105fc25903e800273f7e980c0553060858a68glennrp } 6284dbb105fc25903e800273f7e980c0553060858a68glennrp 6285dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6286dbb105fc25903e800273f7e980c0553060858a68glennrp Mark background color, first occurrence if more than one. 6287dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6288dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < number_colors; i++) 6289dbb105fc25903e800273f7e980c0553060858a68glennrp { 6290dbb105fc25903e800273f7e980c0553060858a68glennrp if (IsColorEqual(image->colormap+i,&image->background_color)) 6291dbb105fc25903e800273f7e980c0553060858a68glennrp { 6292dbb105fc25903e800273f7e980c0553060858a68glennrp marker[i]=MagickTrue; 6293dbb105fc25903e800273f7e980c0553060858a68glennrp break; 6294dbb105fc25903e800273f7e980c0553060858a68glennrp } 6295dbb105fc25903e800273f7e980c0553060858a68glennrp } 6296dbb105fc25903e800273f7e980c0553060858a68glennrp 6297dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6298dbb105fc25903e800273f7e980c0553060858a68glennrp Unmark duplicates. 6299dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6300dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < number_colors-1; i++) 6301dbb105fc25903e800273f7e980c0553060858a68glennrp if (marker[i]) 6302dbb105fc25903e800273f7e980c0553060858a68glennrp { 6303dbb105fc25903e800273f7e980c0553060858a68glennrp for (j=i+1; j < number_colors; j++) 6304dbb105fc25903e800273f7e980c0553060858a68glennrp if ((opacity[i] == opacity[j]) && 6305dbb105fc25903e800273f7e980c0553060858a68glennrp (IsColorEqual(image->colormap+i,image->colormap+j))) 6306dbb105fc25903e800273f7e980c0553060858a68glennrp { 6307dbb105fc25903e800273f7e980c0553060858a68glennrp marker[j]=MagickFalse; 6308dbb105fc25903e800273f7e980c0553060858a68glennrp } 6309dbb105fc25903e800273f7e980c0553060858a68glennrp } 6310991d11dd9c33e65872778b81aff1347cd2878154glennrp 6311dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6312dbb105fc25903e800273f7e980c0553060858a68glennrp Count colors that still remain. 6313dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6314dbb105fc25903e800273f7e980c0553060858a68glennrp have_transparency=MagickFalse; 6315dbb105fc25903e800273f7e980c0553060858a68glennrp new_number_colors=0; 6316991d11dd9c33e65872778b81aff1347cd2878154glennrp 6317dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < number_colors; i++) 6318dbb105fc25903e800273f7e980c0553060858a68glennrp if (marker[i]) 6319dbb105fc25903e800273f7e980c0553060858a68glennrp { 6320dbb105fc25903e800273f7e980c0553060858a68glennrp new_number_colors++; 6321dbb105fc25903e800273f7e980c0553060858a68glennrp if (opacity[i] != OpaqueOpacity) 6322dbb105fc25903e800273f7e980c0553060858a68glennrp have_transparency=MagickTrue; 6323dbb105fc25903e800273f7e980c0553060858a68glennrp } 6324991d11dd9c33e65872778b81aff1347cd2878154glennrp 6325dbb105fc25903e800273f7e980c0553060858a68glennrp if (image->debug != MagickFalse) 6326dbb105fc25903e800273f7e980c0553060858a68glennrp { 6327dbb105fc25903e800273f7e980c0553060858a68glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6328991d11dd9c33e65872778b81aff1347cd2878154glennrp " new_number_colors in OptimizePNGColormap=%d", 6329991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) new_number_colors); 6330dbb105fc25903e800273f7e980c0553060858a68glennrp } 6331991d11dd9c33e65872778b81aff1347cd2878154glennrp 6332dbb105fc25903e800273f7e980c0553060858a68glennrp if ((!have_transparency || (marker[0] && 6333dbb105fc25903e800273f7e980c0553060858a68glennrp (opacity[0] == (Quantum) TransparentOpacity))) 6334dbb105fc25903e800273f7e980c0553060858a68glennrp && (new_number_colors == number_colors)) 6335dbb105fc25903e800273f7e980c0553060858a68glennrp { 6336dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6337dbb105fc25903e800273f7e980c0553060858a68glennrp No duplicate or unused entries, and transparency-swap not needed. 6338dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6339991d11dd9c33e65872778b81aff1347cd2878154glennrp 6340dbb105fc25903e800273f7e980c0553060858a68glennrp return(MagickTrue); 6341dbb105fc25903e800273f7e980c0553060858a68glennrp } 6342dbb105fc25903e800273f7e980c0553060858a68glennrp 6343991d11dd9c33e65872778b81aff1347cd2878154glennrp remap_needed=MagickTrue; 6344dbb105fc25903e800273f7e980c0553060858a68glennrp 6345dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6346dbb105fc25903e800273f7e980c0553060858a68glennrp Eliminate unused colormap entries. 6347dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6348dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < number_colors; i++) 6349991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[i]=i; 6350991d11dd9c33e65872778b81aff1347cd2878154glennrp 6351dbb105fc25903e800273f7e980c0553060858a68glennrp k=0; 6352dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=0; i < number_colors; i++) 6353dbb105fc25903e800273f7e980c0553060858a68glennrp { 6354dbb105fc25903e800273f7e980c0553060858a68glennrp if (marker[i]) 6355dbb105fc25903e800273f7e980c0553060858a68glennrp { 6356991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[i]=(IndexPacket) k; 6357dbb105fc25903e800273f7e980c0553060858a68glennrp for (j=i+1; j < number_colors; j++) 6358dbb105fc25903e800273f7e980c0553060858a68glennrp { 6359dbb105fc25903e800273f7e980c0553060858a68glennrp if ((opacity[i] == opacity[j]) && 6360dbb105fc25903e800273f7e980c0553060858a68glennrp (IsColorEqual(image->colormap+i,image->colormap+j))) 6361dbb105fc25903e800273f7e980c0553060858a68glennrp { 6362991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[j]=(IndexPacket) k; 6363dbb105fc25903e800273f7e980c0553060858a68glennrp marker[j]=MagickFalse; 6364dbb105fc25903e800273f7e980c0553060858a68glennrp } 6365dbb105fc25903e800273f7e980c0553060858a68glennrp } 6366dbb105fc25903e800273f7e980c0553060858a68glennrp k++; 6367dbb105fc25903e800273f7e980c0553060858a68glennrp } 6368dbb105fc25903e800273f7e980c0553060858a68glennrp } 6369991d11dd9c33e65872778b81aff1347cd2878154glennrp 6370dbb105fc25903e800273f7e980c0553060858a68glennrp if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 6371dbb105fc25903e800273f7e980c0553060858a68glennrp { 6372dbb105fc25903e800273f7e980c0553060858a68glennrp /* 6373dbb105fc25903e800273f7e980c0553060858a68glennrp Move the first transparent color to palette entry 0. 6374dbb105fc25903e800273f7e980c0553060858a68glennrp */ 6375dbb105fc25903e800273f7e980c0553060858a68glennrp for (i=1; i < number_colors; i++) 6376dbb105fc25903e800273f7e980c0553060858a68glennrp { 6377dbb105fc25903e800273f7e980c0553060858a68glennrp if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 6378dbb105fc25903e800273f7e980c0553060858a68glennrp { 6379dbb105fc25903e800273f7e980c0553060858a68glennrp for (j=0; j < number_colors; j++) 6380dbb105fc25903e800273f7e980c0553060858a68glennrp { 6381991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_plte_map[j] == 0) 6382991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[j]=ping_plte_map[i]; 6383991d11dd9c33e65872778b81aff1347cd2878154glennrp else if (ping_plte_map[j] == ping_plte_map[i]) 6384991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[j]=0; 6385dbb105fc25903e800273f7e980c0553060858a68glennrp } 6386dbb105fc25903e800273f7e980c0553060858a68glennrp remap_needed=MagickTrue; 6387dbb105fc25903e800273f7e980c0553060858a68glennrp break; 6388dbb105fc25903e800273f7e980c0553060858a68glennrp } 6389dbb105fc25903e800273f7e980c0553060858a68glennrp } 6390dbb105fc25903e800273f7e980c0553060858a68glennrp } 6391dbb105fc25903e800273f7e980c0553060858a68glennrp 6392991d11dd9c33e65872778b81aff1347cd2878154glennrp return(MagickTrue); 6393991d11dd9c33e65872778b81aff1347cd2878154glennrp} 6394991d11dd9c33e65872778b81aff1347cd2878154glennrp#endif /* PNG_SORT_PALETTE */ 6395991d11dd9c33e65872778b81aff1347cd2878154glennrp 6396991d11dd9c33e65872778b81aff1347cd2878154glennrp/* 6397991d11dd9c33e65872778b81aff1347cd2878154glennrp * Temporary wrapper for OptimizePNGColormap 6398991d11dd9c33e65872778b81aff1347cd2878154glennrp */ 6399991d11dd9c33e65872778b81aff1347cd2878154glennrpstatic MagickBooleanType CompressColormapTransFirst(Image *image) 6400991d11dd9c33e65872778b81aff1347cd2878154glennrp{ 6401991d11dd9c33e65872778b81aff1347cd2878154glennrp#if defined(PNG_SORT_PALETTE) 6402991d11dd9c33e65872778b81aff1347cd2878154glennrp register ssize_t 6403991d11dd9c33e65872778b81aff1347cd2878154glennrp i; 6404991d11dd9c33e65872778b81aff1347cd2878154glennrp 6405991d11dd9c33e65872778b81aff1347cd2878154glennrp IndexPacket 6406991d11dd9c33e65872778b81aff1347cd2878154glennrp opacity[256], 6407991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[256]; 6408991d11dd9c33e65872778b81aff1347cd2878154glennrp 6409991d11dd9c33e65872778b81aff1347cd2878154glennrp for (i=0; i<256; i++) 6410991d11dd9c33e65872778b81aff1347cd2878154glennrp { 6411991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_plte_map[i]=i; 6412991d11dd9c33e65872778b81aff1347cd2878154glennrp opacity[i]=0; 6413991d11dd9c33e65872778b81aff1347cd2878154glennrp } 6414991d11dd9c33e65872778b81aff1347cd2878154glennrp 6415991d11dd9c33e65872778b81aff1347cd2878154glennrp if (OptimizePNGColormap(image, ping_plte_map, opacity) == MagickFalse) 6416991d11dd9c33e65872778b81aff1347cd2878154glennrp return MagickFalse; 6417991d11dd9c33e65872778b81aff1347cd2878154glennrp 6418991d11dd9c33e65872778b81aff1347cd2878154glennrp else 6419991d11dd9c33e65872778b81aff1347cd2878154glennrp { 6420991d11dd9c33e65872778b81aff1347cd2878154glennrp ExceptionInfo 6421991d11dd9c33e65872778b81aff1347cd2878154glennrp *exception; 6422991d11dd9c33e65872778b81aff1347cd2878154glennrp 6423991d11dd9c33e65872778b81aff1347cd2878154glennrp register IndexPacket 6424991d11dd9c33e65872778b81aff1347cd2878154glennrp *pixels; 6425991d11dd9c33e65872778b81aff1347cd2878154glennrp 6426991d11dd9c33e65872778b81aff1347cd2878154glennrp PixelPacket 6427991d11dd9c33e65872778b81aff1347cd2878154glennrp colormap[256]; 6428991d11dd9c33e65872778b81aff1347cd2878154glennrp 6429991d11dd9c33e65872778b81aff1347cd2878154glennrp register PixelPacket 6430991d11dd9c33e65872778b81aff1347cd2878154glennrp *q; 6431991d11dd9c33e65872778b81aff1347cd2878154glennrp 6432991d11dd9c33e65872778b81aff1347cd2878154glennrp MagickBooleanType 6433991d11dd9c33e65872778b81aff1347cd2878154glennrp remap_needed; 6434991d11dd9c33e65872778b81aff1347cd2878154glennrp 6435991d11dd9c33e65872778b81aff1347cd2878154glennrp size_t 6436991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_number_colors; 6437991d11dd9c33e65872778b81aff1347cd2878154glennrp 6438991d11dd9c33e65872778b81aff1347cd2878154glennrp ssize_t 6439991d11dd9c33e65872778b81aff1347cd2878154glennrp j, 6440991d11dd9c33e65872778b81aff1347cd2878154glennrp y; 6441991d11dd9c33e65872778b81aff1347cd2878154glennrp 6442991d11dd9c33e65872778b81aff1347cd2878154glennrp register ssize_t 6443991d11dd9c33e65872778b81aff1347cd2878154glennrp x; 6444991d11dd9c33e65872778b81aff1347cd2878154glennrp 6445991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_number_colors=(size_t) 0; 6446991d11dd9c33e65872778b81aff1347cd2878154glennrp remap_needed = MagickFalse; 6447991d11dd9c33e65872778b81aff1347cd2878154glennrp 6448991d11dd9c33e65872778b81aff1347cd2878154glennrp for (i=0; i<image->colors; i++) 6449dbb105fc25903e800273f7e980c0553060858a68glennrp { 6450991d11dd9c33e65872778b81aff1347cd2878154glennrp colormap[ping_plte_map[i]] = image->colormap[i]; 6451dbb105fc25903e800273f7e980c0553060858a68glennrp 6452991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_plte_map[i] != i) 6453991d11dd9c33e65872778b81aff1347cd2878154glennrp remap_needed = MagickTrue; 6454dbb105fc25903e800273f7e980c0553060858a68glennrp 6455991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_plte_map[i] >= ping_number_colors) 6456991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_number_colors=ping_plte_map[i]+1; 6457991d11dd9c33e65872778b81aff1347cd2878154glennrp } 6458dbb105fc25903e800273f7e980c0553060858a68glennrp 6459991d11dd9c33e65872778b81aff1347cd2878154glennrp /* TO DO: add background color if necessary */ 6460dbb105fc25903e800273f7e980c0553060858a68glennrp 6461991d11dd9c33e65872778b81aff1347cd2878154glennrp if (remap_needed == MagickFalse) 6462991d11dd9c33e65872778b81aff1347cd2878154glennrp return MagickTrue; 6463991d11dd9c33e65872778b81aff1347cd2878154glennrp 6464991d11dd9c33e65872778b81aff1347cd2878154glennrp /* 6465dbb105fc25903e800273f7e980c0553060858a68glennrp Remap pixels. 6466991d11dd9c33e65872778b81aff1347cd2878154glennrp */ 6467991d11dd9c33e65872778b81aff1347cd2878154glennrp exception=(&image->exception); 6468991d11dd9c33e65872778b81aff1347cd2878154glennrp for (y=0; y < (ssize_t) image->rows; y++) 6469991d11dd9c33e65872778b81aff1347cd2878154glennrp { 6470991d11dd9c33e65872778b81aff1347cd2878154glennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 6471991d11dd9c33e65872778b81aff1347cd2878154glennrp if (q == (PixelPacket *) NULL) 6472991d11dd9c33e65872778b81aff1347cd2878154glennrp break; 6473991d11dd9c33e65872778b81aff1347cd2878154glennrp pixels=GetAuthenticIndexQueue(image); 6474991d11dd9c33e65872778b81aff1347cd2878154glennrp for (x=0; x < (ssize_t) image->columns; x++) 6475dbb105fc25903e800273f7e980c0553060858a68glennrp { 6476991d11dd9c33e65872778b81aff1347cd2878154glennrp j=(int) pixels[x]; 6477991d11dd9c33e65872778b81aff1347cd2878154glennrp pixels[x]=(IndexPacket) ping_plte_map[j]; 6478dbb105fc25903e800273f7e980c0553060858a68glennrp } 6479991d11dd9c33e65872778b81aff1347cd2878154glennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 6480991d11dd9c33e65872778b81aff1347cd2878154glennrp break; 6481dbb105fc25903e800273f7e980c0553060858a68glennrp } 6482dbb105fc25903e800273f7e980c0553060858a68glennrp 6483991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6484991d11dd9c33e65872778b81aff1347cd2878154glennrp " After OptimizePNGColormap:"); 6485991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6486991d11dd9c33e65872778b81aff1347cd2878154glennrp " i plte_map (red,green,blue,opacity)"); 6487991d11dd9c33e65872778b81aff1347cd2878154glennrp for (i=0; i < image->colors; i++) 6488991d11dd9c33e65872778b81aff1347cd2878154glennrp { 6489991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6490991d11dd9c33e65872778b81aff1347cd2878154glennrp " %d %d (%d,%d,%d,%d)", 6491991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) i, 6492991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) ping_plte_map[i], 6493991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) image->colormap[i].red, 6494991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) image->colormap[i].green, 6495991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) image->colormap[i].blue, 6496991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) opacity[ping_plte_map[i]]); 6497991d11dd9c33e65872778b81aff1347cd2878154glennrp } 6498dbb105fc25903e800273f7e980c0553060858a68glennrp 6499dbb105fc25903e800273f7e980c0553060858a68glennrp 6500991d11dd9c33e65872778b81aff1347cd2878154glennrp for (i=0; i<image->colors; i++) 6501991d11dd9c33e65872778b81aff1347cd2878154glennrp { 6502991d11dd9c33e65872778b81aff1347cd2878154glennrp image->colormap[i] = colormap[i]; 6503991d11dd9c33e65872778b81aff1347cd2878154glennrp } 6504dbb105fc25903e800273f7e980c0553060858a68glennrp 6505991d11dd9c33e65872778b81aff1347cd2878154glennrp image->colors = ping_number_colors; 6506991d11dd9c33e65872778b81aff1347cd2878154glennrp 6507991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6508991d11dd9c33e65872778b81aff1347cd2878154glennrp " After Remap:"); 6509991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6510991d11dd9c33e65872778b81aff1347cd2878154glennrp " i (red,green,blue,opacity)"); 6511991d11dd9c33e65872778b81aff1347cd2878154glennrp for (i=0; i < image->colors; i++) 6512991d11dd9c33e65872778b81aff1347cd2878154glennrp { 6513991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6514991d11dd9c33e65872778b81aff1347cd2878154glennrp " %d (%d,%d,%d,%d)", 6515991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) i, 6516991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) image->colormap[i].red, 6517991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) image->colormap[i].green, 6518991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) image->colormap[i].blue, 6519991d11dd9c33e65872778b81aff1347cd2878154glennrp (int) opacity[i]); 6520991d11dd9c33e65872778b81aff1347cd2878154glennrp } 65216f351cf4e770fcb0086207bd5dd7178132a0c15bglennrp 6522991d11dd9c33e65872778b81aff1347cd2878154glennrp return MagickTrue; 6523991d11dd9c33e65872778b81aff1347cd2878154glennrp } 6524991d11dd9c33e65872778b81aff1347cd2878154glennrp#else 6525991d11dd9c33e65872778b81aff1347cd2878154glennrp image=image; 6526991d11dd9c33e65872778b81aff1347cd2878154glennrp return MagickTrue; 6527991d11dd9c33e65872778b81aff1347cd2878154glennrp#endif /* PNG_SORT_PALETTE */ 6528747aad10b49e665a439b920009ed92cc08e58741glennrp} 6529747aad10b49e665a439b920009ed92cc08e58741glennrp 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6549cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6550cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6551e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp png_byte 6552e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_trans_alpha[256]; 65535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_color_16 65585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background, 65595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color; 65605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 65653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_uint_32 65685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height, 65695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width; 65705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6571bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 6575991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_bKGD, 6576991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_pHYs, 6577991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_tRNS, 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6583bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 65893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp volatile int 65955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth, 65965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type, 65975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method, 65985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method, 65995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method, 66005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans; 66015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6602bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 66045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth, 66055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth; 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6607bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 66093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6616f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp /* Initialize some stuff */ 66205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=0, 66215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=0, 66225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=0, 66235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method=0, 66245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=0, 66255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans = 0; 66265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 66275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.red = 0; 66285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.green = 0; 66295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.blue = 0; 66305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.gray = 0; 66315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index = 0; 66325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 66335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=0; 66345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=0; 66355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=0; 66365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=0; 66375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6638991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_bKGD=MagickFalse; 6639991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_pHYs=MagickFalse; 6640991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_tRNS=MagickFalse; 6641991d11dd9c33e65872778b81aff1347cd2878154glennrp 6642ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 66501449ea221d08431e12b667713077313a49000dc8cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 6651991d11dd9c33e65872778b81aff1347cd2878154glennrp#if 0 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 6653991d11dd9c33e65872778b81aff1347cd2878154glennrp#else 6654991d11dd9c33e65872778b81aff1347cd2878154glennrp mng_info->optimize = MagickFalse; 6655991d11dd9c33e65872778b81aff1347cd2878154glennrp#endif 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 66633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 66643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 66783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6690f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 67033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 67043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 67053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 67063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 67074e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy ping_width=(png_uint_32) image->columns; 67084e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy ping_height=(png_uint_32) image->rows; 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 67113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 67123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 67133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 67143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 67153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 67163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 67173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 67183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 67193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6723e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " width=%.20g",(double) ping_width); 67243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6725e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " height=%.20g",(double) ping_height); 67263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6727e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_matte=%.20g",(double) image->matte); 67283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6729e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_depth=%.20g",(double) image->depth); 67303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6731e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " requested PNG image_depth=%.20g",(double) image->depth); 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 67345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=(png_byte) save_image_depth; 67353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 67373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 67433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 67453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 67493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 67503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 67513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6758991d11dd9c33e65872778b81aff1347cd2878154glennrp 67593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 67623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 67633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 67643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6765991d11dd9c33e65872778b81aff1347cd2878154glennrp 6766991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_pHYs = MagickTrue; 67673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 67763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 6777991d11dd9c33e65872778b81aff1347cd2878154glennrp 67783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 67813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 6783a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 6784a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if ((!mng_info->adjoin || !mng_info->equal_backgrounds)) 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6786a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp unsigned int 6787a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mask; 6788a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 6789a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mask=0xffff; 6790a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (ping_bit_depth == 8) 6791a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mask=0x00ff; 6792a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (ping_bit_depth == 4) 6793a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mask=0x000f; 6794a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (ping_bit_depth == 2) 6795a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mask=0x0003; 6796a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (ping_bit_depth == 1) 6797a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mask=0x0001; 6798a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp ping_background.red=(png_uint_16) 6799a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (ScaleQuantumToShort(image->background_color.red) & mask); 6800a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp ping_background.green=(png_uint_16) 6801a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (ScaleQuantumToShort(image->background_color.green) & mask); 6802a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp ping_background.blue=(png_uint_16) 6803a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (ScaleQuantumToShort(image->background_color.blue) & mask); 6804a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp } 68053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 6809991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_bKGD = MagickTrue; 68103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 68123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 68133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 68143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 681579f9995ecaa0e0daae607e9e88f257706730084dcristy if ((mng_info->write_png_colortype-1) == PNG_COLOR_TYPE_PALETTE) 681679f9995ecaa0e0daae607e9e88f257706730084dcristy mng_info->write_png8=MagickTrue; 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 68183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 68205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 68215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 68243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 68253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 68273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6829bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 6830a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp number_colors; 68313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 68333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 68343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 68373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 68383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 68413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 68423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 68433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6845e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Colors quantized to %.20g",(double) number_colors); 68463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 68485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 68493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 68513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 68525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 68533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 685598156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 6856a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp image_colors=number_colors; 68573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 68583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 68603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 68613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6863a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp " Setting up PLTE chunk with %d colors (%d)", 6864a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (int) number_colors, (int) image_colors); 6865bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 68683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 68693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 68703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 6877f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (long) i,palette[i].red,palette[i].green,palette[i].blue); 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 68813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 68863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 68895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 68913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp int 68975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[256]; 68985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 6903bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 69045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[i]=255; 69053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 6906bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 69093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 691112aea8120076c564d99e5b0f91a12aab268c4910glennrp p=GetVirtualPixels(image,0,y,image->columns,1,exception); 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 69133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6914bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 691812aea8120076c564d99e5b0f91a12aab268c4910glennrp trans_alpha[(ssize_t) number_colors-1]=(png_byte) (255- 6919ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6924bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 69255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (trans_alpha[i] != 255) 69265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 69275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 69285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 69295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping, ping_info, PNG_INFO_tRNS); 69305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping, ping_info, PNG_INFO_tRNS)) 69315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 69325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 69335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp { 69345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (i=0; i<256; i++) 69355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans_alpha[i]; 69365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp } 69375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6938991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_tRNS=MagickTrue; 69393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6943bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 69445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 69453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 69473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 69513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 69533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 69573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 69593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 69615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 69623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) mng_info->write_png_colortype-1; 6969b905e45f528487c0e1c2a28b86b89f8ed86433a0cristy image_matte=MagickFalse; 69705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 69715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 69733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 69795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) ((matte == MagickTrue)? 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 69813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69835af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 69893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 69903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 69933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 69953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 69973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 70023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 70033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 70063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 70105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp "Selected PNG colortype=%d",ping_color_type); 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 70155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB || 70165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 70175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 70233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 70285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 703435ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t one = 1; 70355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70360f111984738842d27d04aed2a3f823d82a943506glennrp 70370f111984738842d27d04aed2a3f823d82a943506glennrp if (image->colors == 0) 70380f111984738842d27d04aed2a3f823d82a943506glennrp { 70390f111984738842d27d04aed2a3f823d82a943506glennrp /* DO SOMETHING */ 70400f111984738842d27d04aed2a3f823d82a943506glennrp (void) ThrowMagickException(&image->exception, 70410f111984738842d27d04aed2a3f823d82a943506glennrp GetMagickModule(),CoderError, 70420f111984738842d27d04aed2a3f823d82a943506glennrp "image has 0 colors", "`%s'",""); 70430f111984738842d27d04aed2a3f823d82a943506glennrp } 70440f111984738842d27d04aed2a3f823d82a943506glennrp 70450f111984738842d27d04aed2a3f823d82a943506glennrp if (logging != MagickFalse) 70460f111984738842d27d04aed2a3f823d82a943506glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 70470f111984738842d27d04aed2a3f823d82a943506glennrp " SyncImage.2."); 704835ef824baa82511126ff0072ae30eee0da9c05a3cristy while ((int) (one << ping_bit_depth) < (ssize_t) image_colors) 70495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7054e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Number of colors: %.20g",(double) image_colors); 70553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 70565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG bit depth: %d",ping_bit_depth); 70573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth=ping_bit_depth; 70615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 70623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 70645af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth > 8) 70655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = 8; 70665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth != (int) old_bit_depth) 70673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7070e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Colors increased to %.20g",(double) 7071f2faecf9facdbbb14fcba373365f9f691a9658e0cristy image_colors); 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7081e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Tentative PNG color type: %.20g",(double) ping_color_type); 70823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7083e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_info->type: %.20g",(double) image_info->type); 70843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7085e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_depth: %.20g",(double) image_depth); 70863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7087e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " ping_bit_depth: %.20g",(double) ping_bit_depth); 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 70965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 7097bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7102bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7115bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7120bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7129bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((y == (ssize_t) image->rows) && (x == (ssize_t) image->columns)) 71303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp No transparent pixels are present. Change 4 or 6 to 0 or 2. 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 71355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type&=0x03; 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 71435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 8) 71443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 71455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 4) 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 71475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 2) 71483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 71495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 1) 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 71515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=(png_uint_16) 7152ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 71535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=(png_uint_16) 7154ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 71555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=(png_uint_16) 7156ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 71575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 71595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.index=(png_byte) 716046f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 7161991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_tRNS=MagickTrue; 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 71683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7169bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 71733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 71743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7176bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p) == 0) 71813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 71893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p)) 71943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 71973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7200217484eb7236f4f3527af0feb39a6dc19a3302fecristy if (x >= 0) 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7203217484eb7236f4f3527af0feb39a6dc19a3302fecristy if (x >= 0) 72045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 72053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 72073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 72093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 72103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red&=0xff; 72125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green&=0xff; 72135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue&=0xff; 72145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray&=0xff; 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 72195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 72203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 72213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 72243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 722535ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t one=1; 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 72279c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 72283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY; 72313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 72325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 72333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 72353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 72363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 723735ef824baa82511126ff0072ae30eee0da9c05a3cristy image_colors=one << image_depth; 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 72395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=16; 72403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 72435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 72443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 724835ef824baa82511126ff0072ae30eee0da9c05a3cristy while ((int) (one << ping_bit_depth) 7249bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy < (ssize_t) image_colors) 72505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 72513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (mng_info->optimize && ping_color_type == 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 72563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 72623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7264bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image_colors; i++) 72653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 72703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 72723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 72733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 72743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 72753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 72763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 72773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 72799c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=1; 72803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 72819c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=2; 72823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 72839c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=4; 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7291bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 729217a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 729317a1485544c62993fc7a94e343c87fed5f3e6407glennrp 729417a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 729517a1485544c62993fc7a94e343c87fed5f3e6407glennrp 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 73023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73049c1eb0729653219b9da9037e044501a6dce79d10glennrp png_set_PLTE(ping,ping_info,NULL,0); 73059c1eb0729653219b9da9037e044501a6dce79d10glennrp if (logging) 73069c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73079c1eb0729653219b9da9037e044501a6dce79d10glennrp " Setting up empty PLTE chunk"); 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 731698156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 7317a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp image_colors=number_colors; 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 73203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 7324bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 73273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 73283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 73313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 733298156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 733398156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 73343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 73353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 73363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 73383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7340befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy size_t 7341befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one; 7342befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy 73435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 7344befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one=1; 7345befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy while ((one << ping_bit_depth) < number_colors) 73465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 73473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 73493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 73615c6f789db7a30bad01ace12b09ad9cd471339e94cristy *packet_indexes; 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 7367bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7370bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 73755c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_indexes=GetVirtualIndexQueue(image); 7376bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73835c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_index=packet_indexes[x]; 7384a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if((size_t) packet_index >= number_colors) 7385a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (void) LogMagickEvent(CoderEvent, GetMagickModule(), 7386a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp "packet_index=%d, number_colors=%d", 7387a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (int) packet_index, (int) number_colors); 7388bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert((size_t) packet_index < number_colors); 7389bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != 256) 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7391bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != (png_byte) (255- 7392ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 73933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7399bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans[(ssize_t) packet_index]=(png_byte) (255- 7400ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 74075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 74085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_PLTE); 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 74143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 74183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7419bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 74245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 74285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 74295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 74305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 74315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 74329c1eb0729653219b9da9037e044501a6dce79d10glennrp { 74339c1eb0729653219b9da9037e044501a6dce79d10glennrp for (i=0; i < (ssize_t) number_colors; i++) 74349c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_trans_alpha[i]=(png_byte) trans[i]; 74359c1eb0729653219b9da9037e044501a6dce79d10glennrp } 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red*=0x0101; 74475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green*=0x0101; 74485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue*=0x0101; 74495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 74553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8 && ping_color_type == 74573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 74583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 746235ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t 746335ef824baa82511126ff0072ae30eee0da9c05a3cristy one=1; 746435ef824baa82511126ff0072ae30eee0da9c05a3cristy 746522ffd97a7a54140ebcfe886af90cbdb7bfe41e89cristy maxval=(png_uint_16) ((one << ping_bit_depth)-1); 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7468a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp ping_background.gray=(png_uint_16) 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 74703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 7474991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_bKGD = MagickTrue; 74753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 74775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray)); 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 747917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 748017a1485544c62993fc7a94e343c87fed5f3e6407glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 748117a1485544c62993fc7a94e343c87fed5f3e6407glennrp { 748217a1485544c62993fc7a94e343c87fed5f3e6407glennrp /* 748317a1485544c62993fc7a94e343c87fed5f3e6407glennrp Identify which colormap entry is the background color. 748417a1485544c62993fc7a94e343c87fed5f3e6407glennrp */ 748517a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7486bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 748717a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 748817a1485544c62993fc7a94e343c87fed5f3e6407glennrp 748917a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 749017a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7491a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp for (i=0; i < (ssize_t) MagickMax(1L*number_colors,1L); i++) 7492a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (IsPNGColorEqual(image->background_color,image->colormap[i])) 749317a1485544c62993fc7a94e343c87fed5f3e6407glennrp break; 749417a1485544c62993fc7a94e343c87fed5f3e6407glennrp 749517a1485544c62993fc7a94e343c87fed5f3e6407glennrp ping_background.index=(png_byte) i; 749617a1485544c62993fc7a94e343c87fed5f3e6407glennrp 749717a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (logging) 7498a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp { 749917a1485544c62993fc7a94e343c87fed5f3e6407glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 750017a1485544c62993fc7a94e343c87fed5f3e6407glennrp " Setting up bKGD chunk with index=%d",(int) i); 7501a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp } 7502a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 7503991d11dd9c33e65872778b81aff1347cd2878154glennrp if (i < number_colors) 7504a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp { 7505991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_bKGD = MagickTrue; 7506a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (logging) 7507a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp { 7508a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7509a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp " background =(%d,%d,%d)", 7510a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (int) ping_background.red, 7511a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (int) ping_background.green, 7512a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (int) ping_background.blue); 7513a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp } 7514a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp } 751517a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7516a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp else 7517991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_bKGD = MagickFalse; 751817a1485544c62993fc7a94e343c87fed5f3e6407glennrp } 751917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color type: %d",ping_color_type); 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 75373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 75393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7544bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy level=(int) MagickMin((ssize_t) quality/10,9); 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 75483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 75553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 75563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 75685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 75803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 75843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || 75865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 75963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp#ifdef PNG_WRITE_iCCP_SUPPORTED 76103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 76113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 76143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 76153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 76203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 76303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 7638e610a071534e448c46460a5aa39ede33bf56b329glennrp (void) png_set_sRGB(ping,ping_info,( 7639e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 7640e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent))); 76413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) 76443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 76633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 76663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 76693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 76713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 76723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 76783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 76793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 76803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=image_info->interlace != NoInterlace; 76833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 76903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB; 76955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 76965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 77015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 77055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (int) mng_info->write_png_depth != ping_bit_depth) || 77063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 77075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) mng_info->write_png_colortype-1 != ping_color_type && 7708991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 77095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp !(mng_info->write_png_colortype == 5 && ping_color_type == 0)))) 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 77173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 77185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth); 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 77243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 77255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type); 77263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77283bd2e411d0f07c705a40c2c73ce7eda3f1f03e0cglennrp png_warning(ping, 77293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 77303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 77333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 77353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 77363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 7737b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging != MagickFalse) 7738b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7739b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Added an opaque matte channel"); 77403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7742991d11dd9c33e65872778b81aff1347cd2878154glennrp if (image->matte == MagickTrue) 7743e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp { 7744991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_color_type < 4) 7745991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_color_type != 3 || ping_num_trans > 0) 7746991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_have_tRNS=MagickTrue; 7747e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp } 7748e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_IHDR(ping,ping_info,ping_width,ping_height, 77545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth,ping_color_type, 77555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method,ping_compression_method, 77565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method); 77575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 7758991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_have_bKGD != MagickFalse) 7759991d11dd9c33e65872778b81aff1347cd2878154glennrp png_set_bKGD(ping,ping_info,&ping_background); 7760991d11dd9c33e65872778b81aff1347cd2878154glennrp 77613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 7762991d11dd9c33e65872778b81aff1347cd2878154glennrp 7763991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_have_tRNS != MagickFalse) 7764991d11dd9c33e65872778b81aff1347cd2878154glennrp { 7765991d11dd9c33e65872778b81aff1347cd2878154glennrp if (logging) 7766991d11dd9c33e65872778b81aff1347cd2878154glennrp { 7767991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7768991d11dd9c33e65872778b81aff1347cd2878154glennrp "Calling png_set_tRNS"); 7769991d11dd9c33e65872778b81aff1347cd2878154glennrp } 7770991d11dd9c33e65872778b81aff1347cd2878154glennrp 7771991d11dd9c33e65872778b81aff1347cd2878154glennrp if (ping_color_type == 3) 7772991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) png_set_tRNS(ping, ping_info, 7773991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_trans_alpha, 7774991d11dd9c33e65872778b81aff1347cd2878154glennrp ping_num_trans, 7775991d11dd9c33e65872778b81aff1347cd2878154glennrp NULL); 7776991d11dd9c33e65872778b81aff1347cd2878154glennrp 7777991d11dd9c33e65872778b81aff1347cd2878154glennrp else if (ping_color_type < 3) 7778991d11dd9c33e65872778b81aff1347cd2878154glennrp (void) png_set_tRNS(ping, ping_info, 7779991d11dd9c33e65872778b81aff1347cd2878154glennrp NULL, 7780991d11dd9c33e65872778b81aff1347cd2878154glennrp 0, 7781991d11dd9c33e65872778b81aff1347cd2878154glennrp &ping_trans_color); 7782991d11dd9c33e65872778b81aff1347cd2878154glennrp } 7783991d11dd9c33e65872778b81aff1347cd2878154glennrp 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 77863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 7787991d11dd9c33e65872778b81aff1347cd2878154glennrp 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77939c1eb0729653219b9da9037e044501a6dce79d10glennrp unsigned char 77949c1eb0729653219b9da9037e044501a6dce79d10glennrp chunk[14]; 77959c1eb0729653219b9da9037e044501a6dce79d10glennrp 77969c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 77979c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGType(chunk,mng_vpAg); 77989c1eb0729653219b9da9037e044501a6dce79d10glennrp LogPNGChunk((int) logging,mng_vpAg,9L); 77999c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGLong(chunk+4,(png_uint_32) image->page.width); 78009c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGLong(chunk+8,(png_uint_32) image->page.height); 78019c1eb0729653219b9da9037e044501a6dce79d10glennrp chunk[12]=0; /* unit = pixels */ 78029c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlob(image,13,chunk); 78039c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 78079c1eb0729653219b9da9037e044501a6dce79d10glennrp /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 78099c1eb0729653219b9da9037e044501a6dce79d10glennrp ping->mode |= PNG_HAVE_IDAT; 78103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 78113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 78143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 78163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 7818b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (image_depth > 8) 7819b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 78207202c101b42be63076be56386f79429bb2f39784cristy switch (ping_color_type) 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7822b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGB: 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 7824b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7825b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_GRAY_ALPHA: 7826b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 7827b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7828b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGBA: 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 7830b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7831b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp default: 7832b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7834b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging) 78353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7836b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7837b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing PNG image data"); 7838b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7839e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Allocating %.20g bytes of memory for pixels",(double) rowbytes); 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 78443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 78523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 78553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 78563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 78583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 78593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 78603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 78623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7863f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 78643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 78663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7867ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7868ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7869ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 78803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 7881a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 78873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7888bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7890a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 7891a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7892a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp " Writing row of pixels (0)"); 7893a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 78983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 7906bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 7917bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 7920b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7921b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7922b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (1)"); 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 79425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7945bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 79505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 79513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 7958b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7959b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7960b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY PNG pixels (2)"); 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7964b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7965b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7966b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (2)"); 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7970b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7971b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7972b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (2)"); 79733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 7988bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 79935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 8003b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 8004b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 8005b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 8006b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 8007b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8008b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (3)"); 8009b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 8016b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 8017b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8018b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (3)"); 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && 80275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8035bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8037e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (logging && y == 0) 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 80435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 80465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 8047b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 804807cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 8049b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8050b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (4)"); 8051b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 8052b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 8053b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 8057a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp if (logging && y <= 2) 8058a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp { 8059a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8060a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp " Writing row of pixels (4)"); 8061a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8062a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp " png_pixels[0]=%d,png_pixels[1]=%d", 8063a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp (int)png_pixels[0],(int)png_pixels[1]); 8064a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp } 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8076b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 8077b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8082b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Wrote PNG image data"); 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8084e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Width: %.20g",(double) ping_width); 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8086e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Height: %.20g",(double) ping_height); 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG bit-depth written: %d",ping_bit_depth); 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color-type written: %d",ping_color_type); 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG Interlace method: %d",ping_interlace_method); 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 81475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_width != mng_info->page.width) || 81485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_height != mng_info->page.height)) 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 81695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.x + ping_width)); 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 81725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.y + ping_height)); 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp s[0]=(char) ping_bit_depth; 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 81985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 8204f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 82063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 82913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 835773bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 8365a521b2fe1f4c8b8ab9412bd6ef23b6736b90e43dglennrp mng_info->equal_backgrounds=MagickTrue; 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83769c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 3 */ 4; 83779c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 83789c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 83809c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 83819c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,PaletteMatteType); 83829c1eb0729653219b9da9037e044501a6dce79d10glennrp else 83839c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,PaletteType); 83849c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83909c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 2 */ 3; 83919c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 83929c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 83939c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 83949c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorMatteType); 83959c1eb0729653219b9da9037e044501a6dce79d10glennrp else 83969c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorType); 83979c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84029c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 6 */ 7; 84039c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 84049c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 84059c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 84069c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorMatteType); 84079c1eb0729653219b9da9037e044501a6dce79d10glennrp else 84089c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorType); 84099c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 84169c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 1; 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 84189c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 2; 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 84209c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 4; 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 84229c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 84249c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 16; 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84269c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84279c1eb0729653219b9da9037e044501a6dce79d10glennrp "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 84313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 84349c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 1; 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 84369c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 3; 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 84389c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 4; 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 84409c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 5; 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 84429c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 7; 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84449c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84459c1eb0729653219b9da9037e044501a6dce79d10glennrp "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 84753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 84853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8488bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 85343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 85533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 85603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 85763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 8593f2faecf9facdbbb14fcba373365f9f691a9658e0cristy &image->exception); 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8597e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Successfully read jpeg_image into a blob, length=%.20g.", 8598e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) length); 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 86114e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+4,(png_uint_32) image->columns); 86124e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+8,(png_uint_32) image->rows); 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8626f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " JNG width:%15lu",(unsigned long) image->columns); 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8628f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " JNG height:%14lu",(unsigned long) image->rows); 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 86313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 86493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8665bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 8672bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) (num_bytes-4L)); 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 8674bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_bKGD,(size_t) (num_bytes-4L)); 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 8697e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 8698e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 8699e610a071534e448c46460a5aa39ede33bf56b329glennrp (image->rendering_intent)); 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 8701e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 8702e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 8703e610a071534e448c46460a5aa39ede33bf56b329glennrp (PerceptualIntent)); 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 87133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 871735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 87203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 873435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); 873535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 873735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); 873835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 874035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); 874135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 874335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); 874435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 875935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 876135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 876935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 877135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 877735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (image->x_resolution+0.5)); 877835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (image->y_resolution+0.5)); 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 87933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 8794bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+4,(ssize_t) (image->page.x)); 8795bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+8,(ssize_t) (image->page.y)); 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 88093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8817bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8820bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8826e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write IDAT chunks from blob, length=%.20g.",(double) 8827f2faecf9facdbbb14fcba373365f9f691a9658e0cristy length); 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 8832bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=8; i<(ssize_t) length; i+=len+12) 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 8839bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) len); 8840bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_IDAT,(size_t) len); 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8849e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Skipping %c%c%c%c chunk, length=%.20g.", 8850e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy *(p),*(p+1),*(p+2),*(p+3),(double) len); 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8860e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write JDAA chunk, length=%.20g.",(double) length); 8861bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8899e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Created jpeg_image, %.20g x %.20g.",(double) jpeg_image->columns, 8900e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) jpeg_image->rows); 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8914e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Successfully read jpeg_image into a blob, length=%.20g.", 8915e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) length); 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8918e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write JDAT chunk, length=%.20g.",(double) length); 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 8921bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 900873bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9064bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9074bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9077bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9081d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER < 10200) 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 910473bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9158e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image_info depth: %.20g",(double) image_info->depth); 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9166e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Scene: %.20g",(double) scene++); 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9168e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image depth: %.20g",(double) p->depth); 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9183e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Number of colors: %.20g",(double) p->colors); 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 92289c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(p,PaletteMatteType); 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92309c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(p,PaletteType); 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 92883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 92893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 92933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 93283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 93803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 93813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93990261712cdc8fb4765add50146936e3ba2cb9fefaglennrp if (mng_info->adjoin) 9400d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp { 9401d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp final_delay=10; 9402d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp (void) ThrowMagickException(&image->exception, 9403d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp GetMagickModule(),CoderWarning, 9404d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp "input has zero delay between all frames; assuming", 9405d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp " 10 cs `%s'",""); 9406d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp } 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 94124e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy mng_info->ticks_per_second=(png_uint_32) (image->ticks_per_second/final_delay); 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 94394e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+4,(png_uint_32) mng_info->page.width); 94404e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.height); 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 9492bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 9493bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_nEED,(size_t) length); 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 95063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 95083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 95143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9519e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " TERM delay: %.20g",(double) (mng_info->ticks_per_second* 9520e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy final_delay/MagickMax(image->ticks_per_second,1))); 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 95223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9523e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " TERM iterations: %.20g",(double) PNG_UINT_31_MAX); 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9526e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image iterations: %.20g",(double) image->iterations); 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 9544e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 9545e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 9546e610a071534e448c46460a5aa39ede33bf56b329glennrp (image->rendering_intent)); 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 9548e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 9549e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 9550e610a071534e448c46460a5aa39ede33bf56b329glennrp (PerceptualIntent)); 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 95583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 95613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 95633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 95643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 956535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); 95663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 95673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 95683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 95693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 95713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 95733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 95743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 95773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 95793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 95803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 95813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 958235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); 958335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); 95843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 958535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); 958635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); 95873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 958835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); 958935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); 95903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 959135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); 959235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); 95933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 95943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 95953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 95963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 95993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 96023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 96043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 96053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 96063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 96073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 960835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 96093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 961035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 96113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 96123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 96133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 96153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 96173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 961835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 96193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 962035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 96213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 96223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 96233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 96253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 962635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (image->x_resolution+0.5)); 962735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (image->y_resolution+0.5)); 96283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 96293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 96323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 96333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 96363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 96373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 96393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 96403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 96413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 96423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 96433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 96453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 96463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 96473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 96483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 96493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 96503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 96513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 96523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 96533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 96543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 96553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 96563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 96583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 96593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 96603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 96613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 96623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 96663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 96673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 96683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 96693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9670bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 96713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 96723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 96753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 96773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 96783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 96793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9680bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 96813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 96833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 96843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 96853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 96873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 96883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 96893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 96913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 96933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 96943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 96953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 96963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 96973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 96983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 96993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 97013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 97033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 97043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 97053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 97063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 97073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 97083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 97093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 97113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 97133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 97143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 97153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 97163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 97173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 97183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 97193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 97213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 97223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 9723bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 97243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 97253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 97273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 97283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 97293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9730bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 97313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 97333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 97343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 97353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 97373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 97383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 97393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 97403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 97433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 97443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 97463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 97473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9748bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 97493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 97503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 97513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 97533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 97553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 97563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 97583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 97603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 97613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 97633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 97643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 97653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 97673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 97683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 97693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 97703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 97713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 97723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 97733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 97743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 97753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 97763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 97773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 97823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 97843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 97853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 97873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 97883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 97893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 97913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 97933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 97943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 97953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 97963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 97973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 97983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 97993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 98003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 98013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 98033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 98043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 98053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 98063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 98073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 98083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 98093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 98103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 98113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 98123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 98133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 98143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 98153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 98163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 98173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 98183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 98193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 98203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 98214e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy mng_info->delay=(png_uint_32) image->delay; 98223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 98243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 98263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 98273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 98283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 98293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 98303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 98313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 98323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 98333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 98343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 98353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 98363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 98373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 98383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 98393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 98403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 98423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 98433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 98443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 98453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 98463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 98473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 98483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 98503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 98513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 98523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 98533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 98543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 98553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 98573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 98583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 98593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 98603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 98613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 98623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 98633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 98643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 98653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 98663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 98673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 98683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 98693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 98703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 98713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 98723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 98733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 98743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 98753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 98763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 98773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 98783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 98793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 98803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 98813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 98823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 98833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 98843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 98853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 98863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9887d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#else /* PNG_LIBPNG_VER > 10011 */ 98883ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 98893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 98903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 98913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 98923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 98933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 98943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 98953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 98963ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 98973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 98983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 98993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9900d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 99013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9902