png.c revision 73bd4a51b419e914565bdf204bf1540dc4c8ee26
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. */ 1163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SORT_PALETTE /* This works as of 5.4.0. */ 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 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% C o m p r e s s C o l o r m a p T r a n s F i r s t % 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% CompressColormapTransFirst compresses an image colormap removing 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% any duplicate and unused color entries and putting the transparent colors 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% first. Returns MagickTrue on success, MagickFalse on error. 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the CompressColormapTransFirst method is: 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned int CompressColormapTransFirst(Image *image) 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 5503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 55298156a3a465a004545e39434c63052b955a74d1cglennrp% This function updates image->colors and image->colormap. 5533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType CompressColormapTransFirst(Image *image) 5563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 5583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed, 5593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k; 5603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 561bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 5623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j, 5633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors, 5643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 5653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 5663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *colormap; 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 5715c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 5723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used; 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 579bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 5813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *map, 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *opacity; 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *marker, 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency; 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if colormap can be compressed. 5933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 59798156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 598e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " CompressColorMapTransFirst %s (%.20g colors)",image->filename, 599e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->colors); 6003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class != PseudoClass || image->colors > 256 || 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors < 2) 60298156a3a465a004545e39434c63052b955a74d1cglennrp { 60398156a3a465a004545e39434c63052b955a74d1cglennrp if (image->debug != MagickFalse) 60498156a3a465a004545e39434c63052b955a74d1cglennrp { 60598156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 60698156a3a465a004545e39434c63052b955a74d1cglennrp " Could not compress colormap"); 60798156a3a465a004545e39434c63052b955a74d1cglennrp if (image->colors > 256 || image->colors == 0) 60898156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickFalse); 60998156a3a465a004545e39434c63052b955a74d1cglennrp else 61098156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickTrue); 61198156a3a465a004545e39434c63052b955a74d1cglennrp } 61298156a3a465a004545e39434c63052b955a74d1cglennrp } 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) AcquireQuantumMemory(image->colors,sizeof(*marker)); 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker == (unsigned char *) NULL) 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) AcquireQuantumMemory(image->colors,sizeof(*opacity)); 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity == (IndexPacket *) NULL) 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark colors that are present. 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 627bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy number_colors=(ssize_t) image->colors; 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 634bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6395c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetVirtualIndexQueue(image); 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 641bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6435c6f789db7a30bad01ace12b09ad9cd471339e94cristy marker[(int) indexes[x]]=MagickTrue; 6445c6f789db7a30bad01ace12b09ad9cd471339e94cristy opacity[(int) indexes[x]]=GetOpacityPixelComponent(p); 6455c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (indexes[x] > top_used) 6465c6f789db7a30bad01ace12b09ad9cd471339e94cristy top_used=indexes[x]; 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 650bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6525c6f789db7a30bad01ace12b09ad9cd471339e94cristy marker[(int) indexes[x]]=MagickTrue; 6535c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (indexes[x] > top_used) 6545c6f789db7a30bad01ace12b09ad9cd471339e94cristy top_used=indexes[x]; 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark background color, topmost occurrence if more than one. 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=number_colors-1; i; i--) 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsColorEqual(image->colormap+i,&image->background_color)) 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickTrue; 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Unmark duplicates. 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors-1; i++) 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Count colors that still remain. 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickFalse; 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors=0; 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors++; 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity[i] != OpaqueOpacity) 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickTrue; 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!have_transparency || (marker[0] && 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (opacity[0] == (Quantum) TransparentOpacity))) 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && (new_number_colors == number_colors)) 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No duplicate or unused entries, and transparency-swap not needed. 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickFalse; 708bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((ssize_t) top_used >= new_number_colors) 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Compress colormap. 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) AcquireQuantumMemory(image->colors, 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*colormap)); 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (colormap == (PixelPacket *) NULL) 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Eliminate unused colormap entries. 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) AcquireQuantumMemory((size_t) number_colors, 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*map)); 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map == (IndexPacket *) NULL) 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k=0; 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[i]=(IndexPacket) k; 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=(IndexPacket) k; 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k++; 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=0; 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[j]=image->colormap[i]; 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j++; 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Move the first transparent color to palette entry 0. 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < number_colors; i++) 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap; 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap=colormap[0]; 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[0]=colormap[(int) map[i]]; 778bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy colormap[(ssize_t) map[i]]=temp_colormap; 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < number_colors; j++) 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map[j] == 0) 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=map[i]; 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (map[j] == map[i]) 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=0; 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (remap_needed) 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Remap pixels. 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 810bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=GetAuthenticIndexQueue(image); 816bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=(int) pixels[x]; 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels[x]=map[j]; 8203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < new_number_colors; i++) 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i]=colormap[i]; 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 828bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) new_number_colors; 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) RelinquishMagickMemory(map); 8303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s G r a y % 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsGrayImage except does not change DirectClass to PseudoClass % 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsGray(Image *image) 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 854bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 866bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 871bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 876bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s M o n o c h r o m e % 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and is more accurate. % 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsMonochrome(Image *image) 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 907bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 918bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((IsGray(image->colormap+i) == MagickFalse) || 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->colormap[i].red != 0) && 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colormap[i].red != (Quantum) QuantumRange))) 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 927bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 932bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 946d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1058d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER > 10011) 1059bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic size_t WriteBlobMSBULong(Image *image,const size_t value) 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 10673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1104e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Writing %c%c%c%c chunk, length: %.20g", 1105e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1107d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1113d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 11583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 11813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 11873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 1227e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy "Expected %.20g bytes; found %.20g bytes",(double) length, 1228e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) check); 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1256bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1329bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy check=(png_size_t) WriteBlob(image,(size_t) length,data); 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1343bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 1352bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) a->colors; i++) 13533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 1389bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 1391bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 13923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1399bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 14093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 14133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 14233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 14253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1437bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.left=(ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 1438bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.right=(ssize_t) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 1439bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.top=(ssize_t) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 1440bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.bottom=(ssize_t) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 14413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 14563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 1457bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy Read two ssize_ts from CLON, MOVE or PAST chunk 14583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14598182b0758e3429fb8dcd1700f09643fd4d80a41ccristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14608182b0758e3429fb8dcd1700f09643fd4d80a41ccristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14698182b0758e3429fb8dcd1700f09643fd4d80a41ccristystatic long mng_get_long(unsigned char *p) 14703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14718182b0758e3429fb8dcd1700f09643fd4d80a41ccristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 1485faa852bad40107edae19405e76a299057668d795glennrp#if PNG_LIBPNG_VER < 10500 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 1487faa852bad40107edae19405e76a299057668d795glennrp#else 1488faa852bad40107edae19405e76a299057668d795glennrp png_longjmp(ping,1); 1489faa852bad40107edae19405e76a299057668d795glennrp#endif 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 15003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 15013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1502cc23b9a188db6b1f240825f6d4c52310f5f69765cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING,message); 15033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 15043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 15053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 15083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 15093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 15293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1544bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 15463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 15523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 15543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 15553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 15613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 1575f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy length=(png_uint_32) StringToLong(sp); 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 15953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 1596bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) nibbles; i++) 15973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 16083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 16103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 16113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 16153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 16163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 16173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 16183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 16193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 16203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 16213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 16223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 16253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 16263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 16283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 16293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 16323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 16343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 16353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 16373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 16413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 16423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 16453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 16483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 16513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1654bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.width=(size_t) ((chunk->data[0] << 24) | 16553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 1656bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.height=(size_t) ((chunk->data[4] << 24) | 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 16653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 16703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 16813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 16823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 16833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 16843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 16863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 16913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 16933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 16953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 16973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 16993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 17003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 17013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 17053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 17063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 17083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 1711faa852bad40107edae19405e76a299057668d795glennrp pass, 1712faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth, 1713faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, 1714faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method, 1715faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method, 1716faa852bad40107edae19405e76a299057668d795glennrp ping_filter_method, 1717faa852bad40107edae19405e76a299057668d795glennrp ping_num_trans; 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 172205eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp UShortPixelPacket 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1725faa852bad40107edae19405e76a299057668d795glennrp png_bytep 1726faa852bad40107edae19405e76a299057668d795glennrp ping_trans_alpha; 1727faa852bad40107edae19405e76a299057668d795glennrp 1728faa852bad40107edae19405e76a299057668d795glennrp png_color_16p 1729faa852bad40107edae19405e76a299057668d795glennrp ping_background, 1730faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color; 1731faa852bad40107edae19405e76a299057668d795glennrp 17323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 17373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 17383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 17403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 17413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1742faa852bad40107edae19405e76a299057668d795glennrp png_uint_32 1743faa852bad40107edae19405e76a299057668d795glennrp ping_height, 1744faa852bad40107edae19405e76a299057668d795glennrp ping_width, 1745faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes; 1746faa852bad40107edae19405e76a299057668d795glennrp 17473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 17483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 17493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 17513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 17523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1753bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 17543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 17553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 17573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 17583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 17605c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 17613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1762bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 17633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1772bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 17733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 17743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 17763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 17773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 17793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 17803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 17813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 17853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1791f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 179425c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if (PNG_LIBPNG_VER < 10200) 17953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 17963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 180061b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 180161b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 180261b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 180361b4c957269727a0a2526edc2331881da8346100glennrp { 180461b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 180561b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 180661b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 180761b4c957269727a0a2526edc2331881da8346100glennrp } 180861b4c957269727a0a2526edc2331881da8346100glennrp# endif 180961b4c957269727a0a2526edc2331881da8346100glennrp#endif 181061b4c957269727a0a2526edc2331881da8346100glennrp 181161b4c957269727a0a2526edc2331881da8346100glennrp 1812ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 18133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 18173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 18193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 18203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 18213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 18223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 18253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 18283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 1841faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 18423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1848f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 18533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 18547b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 18557b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 18567b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 18577b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 18623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1863faa852bad40107edae19405e76a299057668d795glennrp 18643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 18673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 18733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 18743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 18773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 18783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 18793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 18803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 18813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 18883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 18893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 18903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 18913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 18923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 18933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 18943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 18953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1897991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp#if (PNG_LIBPNG_VER < 10400) 1898991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 1899991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 19003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 19013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 19023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 19043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 19053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 19073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 19083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 19093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 19103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 19113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 19123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1913991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# endif 19143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 1917faa852bad40107edae19405e76a299057668d795glennrp 1918faa852bad40107edae19405e76a299057668d795glennrp png_get_IHDR(ping,ping_info,&ping_width,&ping_height, 1919faa852bad40107edae19405e76a299057668d795glennrp &ping_bit_depth,&ping_color_type, 1920faa852bad40107edae19405e76a299057668d795glennrp &ping_interlace_method,&ping_compression_method, 1921faa852bad40107edae19405e76a299057668d795glennrp &ping_filter_method); 1922faa852bad40107edae19405e76a299057668d795glennrp 1923faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_num_trans, 1924faa852bad40107edae19405e76a299057668d795glennrp &ping_trans_color); 1925faa852bad40107edae19405e76a299057668d795glennrp 1926faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_bKGD(ping, ping_info, &ping_background); 1927faa852bad40107edae19405e76a299057668d795glennrp 1928faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 19293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1930faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 1931faa852bad40107edae19405e76a299057668d795glennrp { 1932faa852bad40107edae19405e76a299057668d795glennrp png_set_packing(ping); 1933faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth = 8; 1934faa852bad40107edae19405e76a299057668d795glennrp } 19353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1936faa852bad40107edae19405e76a299057668d795glennrp 1937faa852bad40107edae19405e76a299057668d795glennrp image->depth=ping_bit_depth; 19383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 1939faa852bad40107edae19405e76a299057668d795glennrp image->interlace=ping_interlace_method != 0 ? PNGInterlace : NoInterlace; 19403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1943e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " PNG width: %.20g, height: %.20g", 1944e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) ping_width, (double) ping_height); 19453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color_type: %d, bit_depth: %d", 1947faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, ping_bit_depth); 19483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG compression_method: %d", 1950faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method); 19513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG interlace_method: %d, filter_method: %d", 1953faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method,ping_filter_method); 19543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1956faa852bad40107edae19405e76a299057668d795glennrp#ifdef PNG_READ_iCCP_SUPPORTED 1957faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_iCCP)) 19583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression; 19613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 19633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy info, 19643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name; 19653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 19673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_length; 19683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, 19703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &profile_length); 19713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile_length != 0) 19723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 19743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 19753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG iCCP chunk."); 19793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(profile_length); 19803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetStringInfoDatum(profile,(const unsigned char *) info); 19813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,"icc",profile); 19823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 19833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sRGB_SUPPORTED) 19873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intent; 19903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_srgb) 1992e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent=PNG_RenderingIntent_to_Magick_RenderingIntent( 1993e610a071534e448c46460a5aa39ede33bf56b329glennrp mng_info->global_srgb_intent); 19943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_sRGB(ping,ping_info,&intent)) 19953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1996e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent=PNG_RenderingIntent_to_Magick_RenderingIntent( 1997e610a071534e448c46460a5aa39ede33bf56b329glennrp intent); 19983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2000e610a071534e448c46460a5aa39ede33bf56b329glennrp " Reading PNG sRGB chunk: rendering_intent: %d",intent); 20013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy double 20063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy file_gamma; 20073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2008faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_gAMA(ping,ping_info,&file_gamma)) 2009faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_gama) 2010faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,mng_info->global_gamma); 20113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_gAMA(ping,ping_info,&file_gamma)) 20123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=(float) file_gamma; 20143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG gAMA chunk: gamma: %f",file_gamma); 20173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2019faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 2020faa852bad40107edae19405e76a299057668d795glennrp { 2021faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_chrm != MagickFalse) 2022faa852bad40107edae19405e76a299057668d795glennrp { 2023faa852bad40107edae19405e76a299057668d795glennrp (void) png_set_cHRM(ping,ping_info, 2024faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.x, 2025faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.y, 2026faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.x, 2027faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.y, 2028faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.x, 2029faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.y, 2030faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.x, 2031faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.y); 2032faa852bad40107edae19405e76a299057668d795glennrp } 2033faa852bad40107edae19405e76a299057668d795glennrp } 2034faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 20353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_cHRM(ping,ping_info, 20373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.x, 20383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.y, 20393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.x, 20403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.y, 20413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.x, 20423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.y, 20433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.x, 20443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.y); 20453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG cHRM chunk."); 20483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2049e610a071534e448c46460a5aa39ede33bf56b329glennrp if (image->rendering_intent != UndefinedIntent) 20503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2051e610a071534e448c46460a5aa39ede33bf56b329glennrp png_set_sRGB(ping,ping_info, 2052e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 2053e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent)); 2054faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,0.45455f); 2055faa852bad40107edae19405e76a299057668d795glennrp png_set_cHRM(ping,ping_info, 2056faa852bad40107edae19405e76a299057668d795glennrp 0.6400f, 0.3300f, 0.3000f, 0.6000f, 2057faa852bad40107edae19405e76a299057668d795glennrp 0.1500f, 0.0600f, 0.3127f, 0.3290f); 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 2060faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) 20613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=png_get_x_offset_pixels(ping, ping_info); 20633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=png_get_y_offset_pixels(ping, ping_info); 20643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 20663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2067e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading PNG oFFs chunk: x: %.20g, y: %.20g.",(double) 2068e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy image->page.x,(double) image->page.y); 20693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 2072faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 2073faa852bad40107edae19405e76a299057668d795glennrp { 2074faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_phys) 2075faa852bad40107edae19405e76a299057668d795glennrp { 2076faa852bad40107edae19405e76a299057668d795glennrp png_set_pHYs(ping,ping_info, 2077faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_x_pixels_per_unit, 2078faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_y_pixels_per_unit, 2079faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_phys_unit_type); 2080faa852bad40107edae19405e76a299057668d795glennrp } 2081faa852bad40107edae19405e76a299057668d795glennrp } 2082faa852bad40107edae19405e76a299057668d795glennrp 2083faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 20843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 20873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 20893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 20903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 20913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image resolution. 20943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, 20960881b52ab4fee8427578a694081946c4c4e92b35cristy &unit_type); 20970881b52ab4fee8427578a694081946c4c4e92b35cristy image->x_resolution=(double) x_resolution; 20980881b52ab4fee8427578a694081946c4c4e92b35cristy image->y_resolution=(double) y_resolution; 20993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 21003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 21023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 21033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 21043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2107e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading PNG pHYs chunk: xres: %.20g, yres: %.20g, units: %d.", 2108e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) x_resolution,(double) y_resolution,unit_type); 21093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2111faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 21123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 21143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 21153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 21173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 21183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 21203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((number_colors == 0) && 2121faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 21223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte_length) 21243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,mng_info->global_plte, 21263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_plte_length); 2127faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 21283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length) 21293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length > 21313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length) 21323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 21333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 21343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "global tRNS has more entries than global PLTE", 21353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 21363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_tRNS(ping,ping_info,mng_info->global_trns, 21373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_trns_length,NULL); 21383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 21403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ( 21413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index || 21433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2144faa852bad40107edae19405e76a299057668d795glennrp png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 21453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 21473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 21483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 21503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_saved_bkgd_index) 21513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=mng_info->saved_bkgd_index; 21523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2153faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping, ping_info, PNG_INFO_bKGD)) 2154faa852bad40107edae19405e76a299057668d795glennrp background.index=ping_background->index; 21553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 21563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].red; 21573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 21583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].green; 21593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 21603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].blue; 21613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 21623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 21673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No global PLTE in file","`%s'", 21683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 21693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 2173faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_bkgd && 2174faa852bad40107edae19405e76a299057668d795glennrp (!png_get_valid(ping,ping_info,PNG_INFO_bKGD))) 21753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_info->mng_global_bkgd; 2176faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 21773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image background color. 21803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG bKGD chunk."); 21842cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth == MAGICKCORE_QUANTUM_DEPTH) 21853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2186faa852bad40107edae19405e76a299057668d795glennrp image->background_color.red=ping_background->red; 2187faa852bad40107edae19405e76a299057668d795glennrp image->background_color.green=ping_background->green; 2188faa852bad40107edae19405e76a299057668d795glennrp image->background_color.blue=ping_background->blue; 21893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21902cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else /* Scale background components to 16-bit */ 21913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21922cbb4489df0a2a31907769956f217d4b9d982bd0glennrp unsigned int 21932cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale; 21942cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21952cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 21962cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21972cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " raw ping_background=(%d,%d,%d).",ping_background->red, 21982cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green,ping_background->blue); 21992cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 22002cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 1; 22012cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth == 1) 22022cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 255; 22032cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else if (ping_bit_depth == 2) 22042cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 85; 22052cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else if (ping_bit_depth == 4) 22062cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 17; 22072cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth <= 8) 22082cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale *= 257; 22092cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 22102cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->red *= bkgd_scale; 22112cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green *= bkgd_scale; 22122cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->blue *= bkgd_scale; 22132cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 22142cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 22152cbb4489df0a2a31907769956f217d4b9d982bd0glennrp { 22162cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22172cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " bkgd_scale=%d.",bkgd_scale); 22182cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22192cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " ping_background=(%d,%d,%d).",ping_background->red, 22202cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green,ping_background->blue); 22212cbb4489df0a2a31907769956f217d4b9d982bd0glennrp } 22222cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 22233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 2224faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->red); 22253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 2226faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->green); 22273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 2228faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->blue); 2229f17da7472c6195cfc91626d98d166cae04345d34cristy image->background_color.opacity=OpaqueOpacity; 22302cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 22312cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 22322cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2233e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->background_color=(%.20g,%.20g,%.20g).", 2234e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.red, 2235e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.green, 2236e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.blue); 22373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 22423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 22433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 2244faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 22453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 22483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 22513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 225235ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t 225335ef824baa82511126ff0072ae30eee0da9c05a3cristy one=1; 225435ef824baa82511126ff0072ae30eee0da9c05a3cristy 22553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2259f9cca6af1ff9b913c32a2cec81eda059877a8832cristy max_sample = (int) ((one << ping_bit_depth) - 1); 22603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2261faa852bad40107edae19405e76a299057668d795glennrp if ((ping_color_type == PNG_COLOR_TYPE_GRAY && 2262faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->gray > max_sample) || 2263faa852bad40107edae19405e76a299057668d795glennrp (ping_color_type == PNG_COLOR_TYPE_RGB && 2264faa852bad40107edae19405e76a299057668d795glennrp ((int)ping_trans_color->red > max_sample || 2265faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->green > max_sample || 2266faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->blue > max_sample))) 22673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 22713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 2272faa852bad40107edae19405e76a299057668d795glennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 22733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 22743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 227705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.red= (unsigned short)(ping_trans_color->red); 227805eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.green= (unsigned short) (ping_trans_color->green); 227905eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.blue= (unsigned short) (ping_trans_color->blue); 228005eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity= (unsigned short) (ping_trans_color->gray); 228105eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp 2282faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 22833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22840f111984738842d27d04aed2a3f823d82a943506glennrp#if (MAGICKCORE_QUANTUM_DEPTH == 8) 22850f111984738842d27d04aed2a3f823d82a943506glennrp if (ping_bit_depth < MAGICKCORE_QUANTUM_DEPTH) 22860f111984738842d27d04aed2a3f823d82a943506glennrp#endif 228705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity=(unsigned short) ( 22880f111984738842d27d04aed2a3f823d82a943506glennrp ping_trans_color->gray * 228905eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp (65535L/((1UL << ping_bit_depth)-1))); 22900f111984738842d27d04aed2a3f823d82a943506glennrp 229105eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp#if (MAGICKCORE_QUANTUM_DEPTH == 8) 229205eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp else 229305eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity=(unsigned short) ( 229405eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp (ping_trans_color->gray * 65535L)/ 229505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ((1UL << ping_bit_depth)-1)); 22960f111984738842d27d04aed2a3f823d82a943506glennrp#endif 22970f111984738842d27d04aed2a3f823d82a943506glennrp if (logging != MagickFalse) 22980f111984738842d27d04aed2a3f823d82a943506glennrp { 22990f111984738842d27d04aed2a3f823d82a943506glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23000f111984738842d27d04aed2a3f823d82a943506glennrp " Raw tRNS graylevel is %d.",ping_trans_color->gray); 23010f111984738842d27d04aed2a3f823d82a943506glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23020f111984738842d27d04aed2a3f823d82a943506glennrp " scaled graylevel is %d.",transparent_color.opacity); 23030f111984738842d27d04aed2a3f823d82a943506glennrp } 23043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 23073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 23123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2313faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 2318faa852bad40107edae19405e76a299057668d795glennrp 23193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 2320faa852bad40107edae19405e76a299057668d795glennrp 2321faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes=png_get_rowbytes(ping,ping_info); 2322faa852bad40107edae19405e76a299057668d795glennrp 23233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 23253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 2327bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.right=(ssize_t) ping_width; 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2329bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.bottom=(ssize_t) ping_height; 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 23313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2332faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_width=ping_width; 2333faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_height=ping_height; 23343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 23363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 2342faa852bad40107edae19405e76a299057668d795glennrp image->columns=ping_width; 2343faa852bad40107edae19405e76a299057668d795glennrp image->rows=ping_height; 2344faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 2345faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2346faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY)) 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2348befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy size_t 2349befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one; 2350befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy 23513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 2352befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one=1; 2353befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy image->colors=one << ping_bit_depth; 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 23553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 23563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 23573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 23603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2361faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 23623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 23653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 23673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 23683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 2370bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) number_colors; 23713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 23783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 23813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 23833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2384faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 23853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 23903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 23913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 2393bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 23943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 23963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2402bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 24033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2405faa852bad40107edae19405e76a299057668d795glennrp scale=(QuantumRange/((1UL << ping_bit_depth)-1)); 24063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 24073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 2408bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 24093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 24113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 24123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 24133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 24210ca69b143ae83fb90449a01e0b0900cb83a1cbc8glennrp if ((mng_info->mng_type == 0 && (image->ping != MagickFalse)) || ( 2422347e40f2829bd04656674c58927cc50cda195475glennrp (image_info->number_scenes != 0) && (mng_info->scenes_found > (ssize_t) 2423347e40f2829bd04656674c58927cc50cda195475glennrp (image_info->first_scene+image_info->number_scenes)))) 24243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2427e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Skipping PNG image data for scene %.20g",(double) 24283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 24293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 24303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2431f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 24323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 24333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 24353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 24363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 24393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 2443faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes*sizeof(*png_pixels)); 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2445faa852bad40107edae19405e76a299057668d795glennrp png_pixels=(unsigned char *) AcquireQuantumMemory(ping_rowbytes, 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 24473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 24513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 24543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2455faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 24613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2462f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 24643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 24673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 24683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 24693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 24703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 24713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 24727b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 24737b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 24747b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 24757b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 24773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2478ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2479ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2480ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 24813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 24823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 24883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 24893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 24903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2491bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy depth=(ssize_t) ping_bit_depth; 24923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2493faa852bad40107edae19405e76a299057668d795glennrp image->matte=(((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 2494faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2495faa852bad40107edae19405e76a299057668d795glennrp (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? 2496faa852bad40107edae19405e76a299057668d795glennrp MagickTrue : MagickFalse; 24973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2498bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2501faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 25023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 25043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2505abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 25063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 25093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 25103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 25123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 25133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 25163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 2517faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 25183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2519bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 25203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 2523faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) && 25243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 25253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 25273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2533faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB) 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2535faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 2536bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 25453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2555bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 25563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 25643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2566faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 2567bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (4*image->columns); x != 0; x--) 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2572faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 2573bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (2*image->columns); x != 0; x--) 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2579faa852bad40107edae19405e76a299057668d795glennrp if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_GRAY) 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 2582faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY || 2583faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 25863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 25883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2589faa852bad40107edae19405e76a299057668d795glennrp else if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_RGB) 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 2592faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB || 2593faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 25983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2599faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 26013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 2603faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY) 26043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 26053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 2606faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 26073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 26083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 2609faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 2612faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 26173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26197a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 26207a287bfadeadea12e47c2376ca78a5d101687142cristy { 2621cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2622cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 26237a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 26247a287bfadeadea12e47c2376ca78a5d101687142cristy break; 26257a287bfadeadea12e47c2376ca78a5d101687142cristy } 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26297a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 26323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2648faa852bad40107edae19405e76a299057668d795glennrp image->matte=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 26503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 26513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2654bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2657faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 26603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 26633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26645c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 26663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2667faa852bad40107edae19405e76a299057668d795glennrp switch (ping_bit_depth) 26683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 26703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2671bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2674bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-7; x > 0; x-=8) 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2682bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (bit=7; bit >= (ssize_t) (8-(image->columns % 8)); bit--) 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2689bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-3; x > 0; x-=4) 26903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 26923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 26933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 26943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 26953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2698bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=3; i >= (ssize_t) (4-(image->columns % 4)); i--) 26993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 27003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 27043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2705bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x > 0; x-=2) 27063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 27083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 27093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 27113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 27123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 27153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2716faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 2717bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 27183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 27213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2729bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2735bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 27363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 2738bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 27393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 27403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 27423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 27433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 27453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 27463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 27473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 27483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2749faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 27503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 27523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 27533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 27543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 27573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 2758bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 27593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 27603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 27623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 27633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 27653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 27663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 27673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 27683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2769faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 27703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 27723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 277346f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 27743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 27753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 27783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 27793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2780faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 27813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 27833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 27843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 27923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 27963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2798bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 279980ac8b9110f1adf7202ed1f4f244cbb1a4e1a56fcristy indexes[x]=(IndexPacket) (*r++); 28003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 28013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28027a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 28037a287bfadeadea12e47c2376ca78a5d101687142cristy { 2804cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2805cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 28067a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 28077a287bfadeadea12e47c2376ca78a5d101687142cristy break; 28087a287bfadeadea12e47c2376ca78a5d101687142cristy } 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28107a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 28113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 28133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2818b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2819b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 28205c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (image->storage_class == PseudoClass) 28215c6f789db7a30bad01ace12b09ad9cd471339e94cristy { 2822aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy MagickBooleanType 28235c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte; 28245c6f789db7a30bad01ace12b09ad9cd471339e94cristy 28255c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte=image->matte; 28265c6f789db7a30bad01ace12b09ad9cd471339e94cristy image->matte=MagickFalse; 28275c6f789db7a30bad01ace12b09ad9cd471339e94cristy (void) SyncImage(image); 2828aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy image->matte=matte; 28295c6f789db7a30bad01ace12b09ad9cd471339e94cristy } 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 28313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 2833bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) image_info->first_scene && image->delay != 0) 28343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 28383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2840f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 28413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 28453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2847faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2857c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2858e805a647adebb9faefcbd7f9a73ca8e91870614acristy#if 1 /* balfour fix */ 2859c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2860c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2861c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2862c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2863faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2864c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2865faa852bad40107edae19405e76a299057668d795glennrp for (x=0; x < ping_num_trans; x++) 2866c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2867e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp image->colormap[x].opacity = 2868e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ScaleCharToQuantum((unsigned char)(255-ping_trans_alpha[x])); 2869c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2870c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2871faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2872c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 28735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (x=0; x < (int) image->colors; x++) 2874c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 287505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantumToShort(image->colormap[x].red) == 287605eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp transparent_color.opacity) 2877c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2878c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2879c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2880c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2881c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2882d027259799c88ed5e4f12d21a5366031bfef0904cristy (void) SyncImage(image); 2883c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2884c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2885c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2886c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2887bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 2888c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2889c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2890c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2891c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2892c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 28935c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 2894c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2895bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 2896c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 289705eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantumToShort(q->red) == transparent_color.red && 289805eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->green) == transparent_color.green && 289905eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->blue) == transparent_color.blue) 2900c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2901c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2902c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2903c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2904c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2905c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2906c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2907c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2908c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2909c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2910c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2911c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2912c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2913bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 29195c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2926faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2927bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29295c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2930faa852bad40107edae19405e76a299057668d795glennrp if (indexpacket < ping_num_trans) 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 2932bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (255-ping_trans_alpha[(ssize_t) indexpacket])); 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2934ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 29363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2937faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2938bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 29393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29405c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2941bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy q->red=image->colormap[(ssize_t) indexpacket].red; 29423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 29433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 294405eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantomToShort(q->red) == transparent_color.opacity) 29453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 29463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2947ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2952bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 295405eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp if (ScaleQuantumToShort(q->red) == transparent_color.red && 295505eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->green) == transparent_color.green && 295605eb4a94b088c7f75605e7c1ec06bd13a6b34a3fglennrp ScaleQuantumToShort(q->blue) == transparent_color.blue) 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2959ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2965c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2968b40fc46321caef77f32743c0dc22e9a4bcc88e71cristy if ((ping_color_type == PNG_COLOR_TYPE_GRAY) || 2969b40fc46321caef77f32743c0dc22e9a4bcc88e71cristy (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) 2970b40fc46321caef77f32743c0dc22e9a4bcc88e71cristy image->colorspace=GRAYColorspace; 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 2972bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) num_text; i++) 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 29893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 301773bd4a51b419e914565bdf204bf1540dc4c8ee26cristy AcquireMagickMemory(sizeof(MngBuffer)); 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 3050faa852bad40107edae19405e76a299057668d795glennrp if (ping_width > 250000L || ping_height > 250000L) 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 3052faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->width=ping_width; 3053faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->height=ping_height; 3054faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->color_type=ping_color_type; 3055faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->sample_depth=ping_bit_depth; 3056faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->interlace_method=ping_interlace_method; 3057faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->compression_method= 3058faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method; 3059faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->filter_method=ping_filter_method; 3060faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 3090f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 314973bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3252bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3275bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 32903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3291bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 33183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3355e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading JNG chunk type %c%c%c%c, length: %.20g", 3356e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 3367bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3384bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 3386bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3401f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " jng_width: %16lu",(unsigned long) jng_width); 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3403f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " jng_width: %16lu",(unsigned long) jng_height); 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 344673bd4a51b419e914565bdf204bf1540dc4c8ee26cristy color_image_info=(ImageInfo *)AcquireMagickMemory(sizeof(ImageInfo)); 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 346673bd4a51b419e914565bdf204bf1540dc4c8ee26cristy AcquireMagickMemory(sizeof(ImageInfo)); 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3543bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(alpha_image,(size_t) length); 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 36048182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->gamma=((float) mng_get_long(p))*0.00001; 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36138182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 36148182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 36158182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 36168182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 36178182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 36188182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 36198182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 36208182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3630e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent= 3631e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_to_Magick_RenderingIntent(p[0]); 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36508182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->page.x=mng_get_long(p); 36518182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->page.y=mng_get_long(&p[4]); 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36678182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->x_resolution=(double) mng_get_long(p); 36688182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->y_resolution=(double) mng_get_long(&p[4]); 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 3746bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 3779bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 3785bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 3788bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 391573bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(*mng_info)); 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 39723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3973bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile ssize_t 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3998bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 40023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4004bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4021bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 403038ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp /* These delays are all measured in image ticks_per_second, 403138ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp * not in MNG ticks_per_second 403238ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp */ 4033bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 409073bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4119bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 4120bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 41543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4166e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading MNG chunk type %c%c%c%c, length: %.20g", 4167e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 41753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 4180bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4219bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 4221bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4226e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " MNG width: %.20g",(double) mng_info->mng_width); 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4228e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " MNG height: %.20g",(double) mng_info->mng_height); 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 42318182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->ticks_per_second=(size_t) mng_get_long(p); 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 42428182b0758e3429fb8dcd1700f09643fd4d80a41ccristy simplicity=(size_t) mng_get_long(p); 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 4268e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (void) FormatMagickString(page_geometry,MaxTextExtent, 4269e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy "%.20gx%.20g+0+0",(double) mng_info->mng_width,(double) 4270f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->mng_height); 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 4272bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.right=(ssize_t) mng_info->mng_width; 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 4274bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.bottom=(ssize_t) mng_info->mng_height; 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 42903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 42913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42928182b0758e3429fb8dcd1700f09643fd4d80a41ccristy final_delay=(png_uint_32) mng_get_long(&p[2]); 42938182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4304e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " final_delay=%.20g",(double) final_delay); 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4306e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->iterations=%.20g",(double) image->iterations); 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4350bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->x_off[object_id]=(ssize_t) ((p[4] << 24) | (p[5] << 16) | 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 4352bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->y_off[object_id]=(ssize_t) ((p[8] << 24) | (p[9] << 16) | 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4357e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " x_off[%d]: %.20g",object_id,(double) 4358f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->x_off[object_id]); 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4360e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " y_off[%d]: %.20g",object_id,(double) 4361f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->y_off[object_id]); 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 43683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 4424bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) (length/3); i++) 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 443035ef824baa82511126ff0072ae30eee0da9c05a3cristy mng_info->global_plte_length=(unsigned int) (length/3); 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 4452bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 445912560f31d66b4ef4afdcff2c20807c555dcf2f7dcristy mng_info->global_trns_length=(unsigned int) length; 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4467bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44708182b0758e3429fb8dcd1700f09643fd4d80a41ccristy igamma=mng_get_long(p); 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44878182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 44888182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 44898182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 44918182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[12]); 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 44938182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[16]); 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 44958182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[20]); 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 44978182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[24]); 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 44998182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[28]); 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4514e610a071534e448c46460a5aa39ede33bf56b329glennrp mng_info->global_srgb_intent= 4515e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_to_Magick_RenderingIntent(p[0]); 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 45203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 4557bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy while (*p && ((p-chunk) < (ssize_t) length)) 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 4560bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((p-chunk) < (ssize_t) (length-4)) 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45738182b0758e3429fb8dcd1700f09643fd4d80a41ccristy frame_delay=1UL*image->ticks_per_second* 45748182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(p); 45758182b0758e3429fb8dcd1700f09643fd4d80a41ccristy if (mng_info->ticks_per_second != 0) 45768182b0758e3429fb8dcd1700f09643fd4d80a41ccristy frame_delay/=mng_info->ticks_per_second; 4577bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp else 4578bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_delay=PNG_UINT_31_MAX; 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4584e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Framing_delay=%.20g",(double) frame_delay); 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4588bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout=1UL*image->ticks_per_second* 4589bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp mng_get_long(p); 4590bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp if (mng_info->ticks_per_second != 0) 4591bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout/=mng_info->ticks_per_second; 4592bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp else 4593bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout=PNG_UINT_31_MAX; 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4599e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Framing_timeout=%.20g",(double) frame_timeout); 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 46023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4608e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Frame_clipping: L=%.20g R=%.20g T=%.20g B=%.20g", 4609e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) fb.left,(double) fb.right,(double) fb.top, 4610e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) fb.bottom); 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 4618bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_width=(size_t) (mng_info->clip.right 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 4620bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_height=(size_t) (mng_info->clip.bottom 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4628e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " subframe_width=%.20g, subframe_height=%.20g",(double) 4629e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy subframe_width,(double) subframe_height); 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4668e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", 4669e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.left,(double) mng_info->clip.right, 4670e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.top,(double) mng_info->clip.bottom); 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4729bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4732bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (j=0; j < (ssize_t) length; j+=2) 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4744bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 4753bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=(ssize_t) first_object; i <= (ssize_t) last_object; i++) 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4776bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t loop_iters=1; 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47828182b0758e3429fb8dcd1700f09643fd4d80a41ccristy loop_iters=mng_get_long(&chunk[1]); 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4785e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " LOOP level %.20g has %.20g iterations ",(double) loop_level, 4786e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) loop_iters); 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4820e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " ENDL: LOOP level %.20g has %.20g remaining iterations ", 4821e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) loop_level,(double) 4822f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->loop_count[loop_level]); 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 49633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 50048182b0758e3429fb8dcd1700f09643fd4d80a41ccristy (size_t) mng_get_long(p); 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 50068182b0758e3429fb8dcd1700f09643fd4d80a41ccristy (size_t) mng_get_long(&p[4]); 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 5029bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 5031bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 50958182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image_width=(size_t) mng_get_long(p); 50968182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image_height=(size_t) mng_get_long(&p[4]); 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 5109bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.right < (ssize_t) mng_info->mng_width) || 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 5111bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.bottom < (ssize_t) mng_info->mng_height)) 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 51313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5150e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted transparent background layer, W=%.20g, H=%.20g", 5151e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->mng_width,(double) mng_info->mng_height); 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5197e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", 5198e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.left,(double) mng_info->clip.right, 5199e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.top,(double) mng_info->clip.bottom); 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 5248bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy offset=SeekBlob(image,-((ssize_t) length+12),SEEK_CUR); 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 52763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 53023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 53054e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width += (png_uint_32) ((image->columns-2)*(mng_info->magn_mx)); 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53094e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width=(png_uint_32) image->columns; 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 53154e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width += (png_uint_32) ((image->columns-3)*(mng_info->magn_mx-1)); 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 53234d368204aa5ac1b8716da0054988319952030438cristy magnified_height += (png_uint_32) ((image->rows-2)*(mng_info->magn_my)); 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53274e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_height=(png_uint_32) image->rows; 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 53334e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_height += (png_uint_32) ((image->rows-3)*(mng_info->magn_my-1)); 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5344bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5348bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5393bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 5397bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5433e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Magnify the rows to %.20g",(double) large_image->rows); 5434bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 54433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 54463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 5449bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 5452bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 5453bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-2) 5454bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5455bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy <= 1 && y == (ssize_t) image->rows-1) 5456bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5457bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-1) 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5460bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_my; 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 5464bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (y < (ssize_t) image->rows-1) 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert(yy < (ssize_t) large_image->rows); 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 5481bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54835c6f789db7a30bad01ace12b09ad9cd471339e94cristy /* TO DO: get color as function of indexes[x] */ 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 5501bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).red=(QM) (((ssize_t) (2*i*((*n).red 5502bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).red)+m))/((ssize_t) (m*2)) 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 5504bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).green=(QM) (((ssize_t) (2*i*((*n).green 5505bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).green)+m))/((ssize_t) (m*2)) 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 5507bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).blue=(QM) (((ssize_t) (2*i*((*n).blue 5508bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).blue)+m))/((ssize_t) (m*2)) 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 55103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 5511bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) 55123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 5514bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).opacity); 55153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5534bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) (2*i*((*n).opacity 5535bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m))/((ssize_t) (m*2)) 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5565e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Magnify the columns to %.20g",(double) image->columns); 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5567bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 5575bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (image->columns-length); 5576bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy x < (ssize_t) image->columns; x++) 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5578bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (x == (ssize_t) (image->columns-length)) 5579bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_ml; 5580bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-2) 5581bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5582bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx <= 1 && x == (ssize_t) image->columns-1) 5583bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5584bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-1) 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5587bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mx; 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 5604bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).red); 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 5607bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy +m)/((ssize_t) (m*2))+(*pixels).green); 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 5610bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).blue); 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5613bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m)/((ssize_t) (m*2)) 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5636bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m) /((ssize_t) (m*2)) 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5654bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 56553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 5657bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 56843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 5713bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.width=(size_t) (crop_box.right-crop_box.left); 5714bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.height=(size_t) (crop_box.bottom-crop_box.top); 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 57413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 57423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5768bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->background_color.red >> 8) & 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 5770bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.red & 0xff)) && 5771bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.green >> 8) & 0xff) 5772bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.green & 0xff)) && 5773bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.blue >> 8) & 0xff) 5774bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.blue & 0xff))); 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5779bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (indx=0; indx < (ssize_t) image->colors; indx++) 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5781bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->colormap[indx].red >> 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 5783bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].red & 0xff)) && 5784bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].green >> 8) & 0xff) 5785bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].green & 0xff)) && 5786bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].blue >> 8) & 0xff) 5787bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].blue & 0xff))); 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5795bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5798bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5801bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5806bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 5809bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->red >> 8) & 0xff) == 5810bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->red & 0xff)) && 5811bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->green >> 8) & 0xff) == 5812bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->green & 0xff)) && 5813bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->blue >> 8) & 0xff) == 5814bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->blue & 0xff)) && 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 5816bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->opacity >> 8) & 0xff) == 5817bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->opacity & 0xff))))); 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 5839bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) (image_info->first_scene+image_info->number_scenes)) 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 59183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5957e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->delay=%.20g, final_delay=%.20g",(double) image->delay, 5958e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) final_delay); 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5969e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene 0 delay=%.20g",(double) image->delay); 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5974e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene %.20g delay=%.20g",(double) scene++,(double) image->delay); 59753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5986bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6035e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene 0 delay=%.20g dispose=%.20g",(double) image->delay, 6036e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->dispose); 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 6038f2faecf9facdbbb14fcba373365f9f691a9658e0cristy { 6039f2faecf9facdbbb14fcba373365f9f691a9658e0cristy image=GetNextImageInList(image); 6040f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6041e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene %.20g delay=%.20g dispose=%.20g",(double) scene++, 6042e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->delay,(double) image->dispose); 6043f2faecf9facdbbb14fcba373365f9f691a9658e0cristy } 6044f2faecf9facdbbb14fcba373365f9f691a9658e0cristy } 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 605225c1e2baba76d9cf3ec582f217f96af95259e747glennrp#else /* PNG_LIBPNG_VER > 10011 */ 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 606525c1e2baba76d9cf3ec582f217f96af95259e747glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 60803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 60813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6088bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% size_t RegisterPNGImage(void) 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 6091bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristyModuleExport size_t RegisterPNGImage(void) 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 61143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 61463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 61793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 62053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 621318b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 621418b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 621518b17443128598500357da7bff2f01683cf32890cristy#endif 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6247514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 6248514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 62493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 625325c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if PNG_LIBPNG_VER > 10011 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 62553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 62713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 62923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 63033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 63063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 63133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 63153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 63243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 63253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 63263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 63273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63313ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 63323ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 63333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 63343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 63353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 63373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6339bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 63413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 63443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 63493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 63503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 63513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 63543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 63593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6360e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (void) printf("writing raw profile: type=%s, length=%.20g\n", 6361e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (char *) profile_type, (double) length); 63623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 63643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 63653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 63663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 63673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 63683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 63693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 63703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 63713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 63723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 63733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 63743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 63753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 63783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 63793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 6381f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (png_size_t) (dp-text[0].text),"%8lu ",(unsigned long) length); 63823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 6383bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 63843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 63863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 63883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 63893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 63923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 63933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 63943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 63953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 63963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 63973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 63983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 63993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 64003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 64013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 64023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 64043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 64053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 64063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 64073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 64083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 64103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 64113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 64133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 64143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 64163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 64183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 64193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 64203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 64213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 64233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 64243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 64263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 64273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 64293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 64313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 64323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 64333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 64343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 64353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 64363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 64373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 64383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 64393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 64403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 64413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 64443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 64463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 64473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64483ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 64493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 64503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 64513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 64523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 64533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 64543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 64573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 64583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 64623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 64653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 64663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6467cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6468cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6469e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp png_byte 6470e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_trans_alpha[256]; 64715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 64733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 64743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_color_16 64765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background, 64775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color; 64785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 64803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 64813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 64833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 64843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_uint_32 64865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height, 64875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width; 64885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6489bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 64913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 64933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 64943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 64963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 64995c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6501bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 65023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 65033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 65093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 65113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp volatile int 65135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth, 65145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type, 65155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method, 65165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method, 65175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method, 65185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans; 65195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6520bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 65213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 65225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth, 65235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth; 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6525bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6534f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp /* Initialize some stuff */ 65385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=0, 65395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=0, 65405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=0, 65415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method=0, 65425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=0, 65435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans = 0; 65445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 65455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.red = 0; 65465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.green = 0; 65475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.blue = 0; 65485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.gray = 0; 65495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index = 0; 65505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 65515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=0; 65525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=0; 65535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=0; 65545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=0; 65555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6556ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 65641449ea221d08431e12b667713077313a49000dc8cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 65653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 65693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 65713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 65763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 65993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6600f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 66013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 66093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 66174e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy ping_width=(png_uint_32) image->columns; 66184e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy ping_height=(png_uint_32) image->rows; 66193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 66233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 66283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 66293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 66303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6633e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " width=%.20g",(double) ping_width); 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6635e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " height=%.20g",(double) ping_height); 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6637e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_matte=%.20g",(double) image->matte); 66383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6639e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_depth=%.20g",(double) image->depth); 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6641e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " requested PNG image_depth=%.20g",(double) image->depth); 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 66445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=(png_byte) save_image_depth; 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 66553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 66633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 66733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 66783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 66813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 66823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 66883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6697bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 67033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 67043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 67053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 67063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 67073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 67083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 67133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 67143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 67153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 67163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 67173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 67193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 67223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 67233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 67263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 67283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 672979f9995ecaa0e0daae607e9e88f257706730084dcristy if ((mng_info->write_png_colortype-1) == PNG_COLOR_TYPE_PALETTE) 673079f9995ecaa0e0daae607e9e88f257706730084dcristy mng_info->write_png8=MagickTrue; 67313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 67345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 67355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6743bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 67453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 67463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 67493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 67513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 67523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 67543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6760e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Colors quantized to %.20g",(double) number_colors); 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 67635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 67643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 67683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 67693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 677298156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 67763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 67773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 67783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 67793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 678198156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 678298156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 6783bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 67843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 67863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 67873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 67883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 67913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 67923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 67933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 67943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 6795f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (long) i,palette[i].red,palette[i].green,palette[i].blue); 67963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 67993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 68013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 68023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 68043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 68063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 68075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 68103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 68123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 68133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp int 68155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[256]; 68165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 68203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 6821bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 68225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[i]=255; 68233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 6824bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 68253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 68273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 68303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 68313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68325c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 6833bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 68343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68375c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes[x]=(IndexPacket) (number_colors-1); 6838bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans_alpha[(ssize_t) indexes[x]]=(png_byte) (255- 6839ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 68423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6846bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 68475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (trans_alpha[i] != 255) 68485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 68495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 68505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 68515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping, ping_info, PNG_INFO_tRNS); 68525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping, ping_info, PNG_INFO_tRNS)) 68535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 68545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 68555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp { 68565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (i=0; i<256; i++) 68575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans_alpha[i]; 68585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp } 68595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 68605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, 68615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha, 68625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans, 68635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 68643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6868bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 68695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 68703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 68723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 68823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 68893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) mng_info->write_png_colortype-1; 6894b905e45f528487c0e1c2a28b86b89f8ed86433a0cristy image_matte=MagickFalse; 68955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 68965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 69045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) ((matte == MagickTrue)? 69053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 69063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 69093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 69183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 69193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 69253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 69263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 69273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 69283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 69303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 69313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp "Selected PNG colortype=%d",ping_color_type); 69363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 69383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 69405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB || 69415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 69425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 69433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 69463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 69483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 69525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 69535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 695935ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t one = 1; 69605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 69610f111984738842d27d04aed2a3f823d82a943506glennrp 69620f111984738842d27d04aed2a3f823d82a943506glennrp if (image->colors == 0) 69630f111984738842d27d04aed2a3f823d82a943506glennrp { 69640f111984738842d27d04aed2a3f823d82a943506glennrp /* DO SOMETHING */ 69650f111984738842d27d04aed2a3f823d82a943506glennrp (void) ThrowMagickException(&image->exception, 69660f111984738842d27d04aed2a3f823d82a943506glennrp GetMagickModule(),CoderError, 69670f111984738842d27d04aed2a3f823d82a943506glennrp "image has 0 colors", "`%s'",""); 69680f111984738842d27d04aed2a3f823d82a943506glennrp } 69690f111984738842d27d04aed2a3f823d82a943506glennrp 69700f111984738842d27d04aed2a3f823d82a943506glennrp if (logging != MagickFalse) 69710f111984738842d27d04aed2a3f823d82a943506glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69720f111984738842d27d04aed2a3f823d82a943506glennrp " SyncImage.2."); 697335ef824baa82511126ff0072ae30eee0da9c05a3cristy while ((int) (one << ping_bit_depth) < (ssize_t) image_colors) 69745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6979e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Number of colors: %.20g",(double) image_colors); 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG bit depth: %d",ping_bit_depth); 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth=ping_bit_depth; 69865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 69895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth > 8) 69905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = 8; 69915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth != (int) old_bit_depth) 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6995e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Colors increased to %.20g",(double) 6996f2faecf9facdbbb14fcba373365f9f691a9658e0cristy image_colors); 69973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 70033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 70043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7006e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Tentative PNG color type: %.20g",(double) ping_color_type); 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7008e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_info->type: %.20g",(double) image_info->type); 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7010e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_depth: %.20g",(double) image_depth); 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7012e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " ping_bit_depth: %.20g",(double) ping_bit_depth); 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 70163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 70193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 70215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 7022bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 70233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 70263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7027bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 70323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7040bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7045bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 70463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7054bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((y == (ssize_t) image->rows) && (x == (ssize_t) image->columns)) 70553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp No transparent pixels are present. Change 4 or 6 to 0 or 2. 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 70605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type&=0x03; 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 70653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 70663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 70685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 8) 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 70705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 4) 70713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 70725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 2) 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 70745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 1) 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 70765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=(png_uint_16) 7077ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 70785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=(png_uint_16) 7079ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 70805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=(png_uint_16) 7081ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 70825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 70845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.index=(png_byte) 708546f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 70865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, NULL, 0, 70875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7095bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 70963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7102bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p) == 0) 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 71153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p)) 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 71223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7126217484eb7236f4f3527af0feb39a6dc19a3302fecristy if (x >= 0) 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7129217484eb7236f4f3527af0feb39a6dc19a3302fecristy if (x >= 0) 71305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 71353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red&=0xff; 71385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green&=0xff; 71395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue&=0xff; 71405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray&=0xff; 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 71455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 71473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 71483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 71493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 715135ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t one=1; 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 71539c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 71543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY; 71573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 71585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 71613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 716335ef824baa82511126ff0072ae30eee0da9c05a3cristy image_colors=one << image_depth; 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 71655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=16; 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 71695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 717435ef824baa82511126ff0072ae30eee0da9c05a3cristy while ((int) (one << ping_bit_depth) 7175bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy < (ssize_t) image_colors) 71765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (mng_info->optimize && ping_color_type == 71803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 71813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 71823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 71873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 71893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7190bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image_colors; i++) 71913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 71933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 71943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 71983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 72023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 72033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 72059c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=1; 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 72079c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=2; 72083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 72099c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=4; 72103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 72133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 72163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7217bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 721817a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 721917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 722017a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 722117a1485544c62993fc7a94e343c87fed5f3e6407glennrp 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 72283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72309c1eb0729653219b9da9037e044501a6dce79d10glennrp png_set_PLTE(ping,ping_info,NULL,0); 72319c1eb0729653219b9da9037e044501a6dce79d10glennrp if (logging) 72329c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72339c1eb0729653219b9da9037e044501a6dce79d10glennrp " Setting up empty PLTE chunk"); 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 7238bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 72393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 72403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 72423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 72443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 724798156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 72493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 72513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 72523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 72533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 7256bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 726498156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 726598156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 72703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7272befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy size_t 7273befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one; 7274befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy 72755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 7276befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one=1; 7277befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy while ((one << ping_bit_depth) < number_colors) 72785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 72793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 72813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 72823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 72913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 72935c6f789db7a30bad01ace12b09ad9cd471339e94cristy *packet_indexes; 72943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 7299bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 73013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7302bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 73075c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_indexes=GetVirtualIndexQueue(image); 7308bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73155c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_index=packet_indexes[x]; 7316bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert((size_t) packet_index < number_colors); 7317bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != 256) 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7319bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != (png_byte) (255- 7320ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 73243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7327bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans[(ssize_t) packet_index]=(png_byte) (255- 7328ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 73313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 73333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 73355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 73365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_PLTE); 73373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 73383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 73403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 73413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 73423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 73433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 73463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7347bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 73483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 73525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 73565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 73575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 73585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 73595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 73609c1eb0729653219b9da9037e044501a6dce79d10glennrp { 73619c1eb0729653219b9da9037e044501a6dce79d10glennrp for (i=0; i < (ssize_t) number_colors; i++) 73629c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_trans_alpha[i]=(png_byte) trans[i]; 73639c1eb0729653219b9da9037e044501a6dce79d10glennrp } 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red*=0x0101; 73755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green*=0x0101; 73765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue*=0x0101; 73775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8 && ping_color_type == 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 739335ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t 739435ef824baa82511126ff0072ae30eee0da9c05a3cristy one=1; 739535ef824baa82511126ff0072ae30eee0da9c05a3cristy 739622ffd97a7a54140ebcfe886af90cbdb7bfe41e89cristy maxval=(png_uint_16) ((one << ping_bit_depth)-1); 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 74003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 74085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray)); 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 741017a1485544c62993fc7a94e343c87fed5f3e6407glennrp 741117a1485544c62993fc7a94e343c87fed5f3e6407glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 741217a1485544c62993fc7a94e343c87fed5f3e6407glennrp { 741317a1485544c62993fc7a94e343c87fed5f3e6407glennrp /* 741417a1485544c62993fc7a94e343c87fed5f3e6407glennrp Identify which colormap entry is the background color. 741517a1485544c62993fc7a94e343c87fed5f3e6407glennrp */ 741617a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7417bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 741817a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 741917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 742017a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 742117a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7422bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 742317a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 742417a1485544c62993fc7a94e343c87fed5f3e6407glennrp break; 742517a1485544c62993fc7a94e343c87fed5f3e6407glennrp 742617a1485544c62993fc7a94e343c87fed5f3e6407glennrp ping_background.index=(png_byte) i; 742717a1485544c62993fc7a94e343c87fed5f3e6407glennrp 742817a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (logging) 742917a1485544c62993fc7a94e343c87fed5f3e6407glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 743017a1485544c62993fc7a94e343c87fed5f3e6407glennrp " Setting up bKGD chunk with index=%d",(int) i); 743117a1485544c62993fc7a94e343c87fed5f3e6407glennrp 743217a1485544c62993fc7a94e343c87fed5f3e6407glennrp png_set_bKGD(ping,ping_info,&ping_background); 743317a1485544c62993fc7a94e343c87fed5f3e6407glennrp } 743417a1485544c62993fc7a94e343c87fed5f3e6407glennrp 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color type: %d",ping_color_type); 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 74553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 74573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 74583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7459bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy level=(int) MagickMin((ssize_t) quality/10,9); 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 74703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 74753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 74763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 74793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 74835af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 74843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 74893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 74963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 74983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 74993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || 75015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 75093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 75113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 75193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 75223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp#ifdef PNG_WRITE_iCCP_SUPPORTED 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 75353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 75393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 75443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 7553e610a071534e448c46460a5aa39ede33bf56b329glennrp (void) png_set_sRGB(ping,ping_info,( 7554e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 7555e610a071534e448c46460a5aa39ede33bf56b329glennrp image->rendering_intent))); 75563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 75653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 75663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 75803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 75843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 75863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 75953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=image_info->interlace != NoInterlace; 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB; 76105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 76115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 76153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 76165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 76205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (int) mng_info->write_png_depth != ping_bit_depth) || 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 76225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) mng_info->write_png_colortype-1 != ping_color_type && 7623991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 76245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp !(mng_info->write_png_colortype == 5 && ping_color_type == 0)))) 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 76335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth); 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 76393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 76405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type); 76413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76433bd2e411d0f07c705a40c2c73ce7eda3f1f03e0cglennrp png_warning(ping, 76443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 76453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 7652b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging != MagickFalse) 7653b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7654b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Added an opaque matte channel"); 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7657e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (image->matte == MagickTrue && ping_color_type < 4) 7658e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp { 7659e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (ping_color_type == 3 && ping_num_trans == 0) 7660e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp { 7661e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 7662e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (logging != MagickFalse) 7663e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7664e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp " Ignoring request to write tRNS chunk with num_trans==0"); 7665e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp } 7666e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp else 7667e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp (void) png_set_tRNS(ping, ping_info, 7668e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_trans_alpha, 7669e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_num_trans, 7670e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp &ping_trans_color); 7671e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp } 7672e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_IHDR(ping,ping_info,ping_width,ping_height, 76785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth,ping_color_type, 76795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method,ping_compression_method, 76805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method); 76815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 76823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 76833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 76843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 76903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76919c1eb0729653219b9da9037e044501a6dce79d10glennrp unsigned char 76929c1eb0729653219b9da9037e044501a6dce79d10glennrp chunk[14]; 76939c1eb0729653219b9da9037e044501a6dce79d10glennrp 76949c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 76959c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGType(chunk,mng_vpAg); 76969c1eb0729653219b9da9037e044501a6dce79d10glennrp LogPNGChunk((int) logging,mng_vpAg,9L); 76979c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGLong(chunk+4,(png_uint_32) image->page.width); 76989c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGLong(chunk+8,(png_uint_32) image->page.height); 76999c1eb0729653219b9da9037e044501a6dce79d10glennrp chunk[12]=0; /* unit = pixels */ 77009c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlob(image,13,chunk); 77019c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 77059c1eb0729653219b9da9037e044501a6dce79d10glennrp /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 77063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 77079c1eb0729653219b9da9037e044501a6dce79d10glennrp ping->mode |= PNG_HAVE_IDAT; 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 77153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 7716b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (image_depth > 8) 7717b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 77187202c101b42be63076be56386f79429bb2f39784cristy switch (ping_color_type) 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7720b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGB: 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 7722b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7723b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_GRAY_ALPHA: 7724b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 7725b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7726b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGBA: 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 7728b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7729b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp default: 7730b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 77313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7732b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging) 77333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7734b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7735b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing PNG image data"); 7736b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7737e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Allocating %.20g bytes of memory for pixels",(double) rowbytes); 77383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 77403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 77413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 77423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 77433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 77465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 77503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 77513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 77543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 77563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 77593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 77603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7761f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 77623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 77633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 77643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7765ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7766ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7767ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 77683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 77693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 77703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 77713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 77723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 77733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 77743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 77753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 77763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 77793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 77813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 77823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7786bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 77873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 77963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 77973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 7800bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 78013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 78023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 78033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 78093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 7811bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 78123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 78133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 7814b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7815b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7816b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (1)"); 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 78183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 78353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 78365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 78383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7839bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 7852b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7853b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7854b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY PNG pixels (2)"); 78553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7858b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7859b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7860b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (2)"); 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 78633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7864b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7865b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7866b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (2)"); 78673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 78683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 78803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 78813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 7882bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 78883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 78903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7897b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 7898b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7899b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7900b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7901b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7902b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (3)"); 7903b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 7910b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7911b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7912b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (3)"); 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 79173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && 79215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7929bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7931e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (logging && y == 0) 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 79375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 79405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7941b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 794207cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7943b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7944b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (4)"); 7945b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7946b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7947b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 795107cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7952b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7953b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (4)"); 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7965b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7966b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7971b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Wrote PNG image data"); 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7973e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Width: %.20g",(double) ping_width); 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7975e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Height: %.20g",(double) ping_height); 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG bit-depth written: %d",ping_bit_depth); 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color-type written: %d",ping_color_type); 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG Interlace method: %d",ping_interlace_method); 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 80023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 80083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 80365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_width != mng_info->page.width) || 80375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_height != mng_info->page.height)) 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 80585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.x + ping_width)); 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 80615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.y + ping_height)); 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 80763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp s[0]=(char) ping_bit_depth; 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 8093f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 82063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 824673bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82649c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 3 */ 4; 82659c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 82669c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 82689c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 82699c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,PaletteMatteType); 82709c1eb0729653219b9da9037e044501a6dce79d10glennrp else 82719c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,PaletteType); 82729c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82789c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 2 */ 3; 82799c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 82809c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 82819c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 82829c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorMatteType); 82839c1eb0729653219b9da9037e044501a6dce79d10glennrp else 82849c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorType); 82859c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82909c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 6 */ 7; 82919c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 82929c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 82939c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 82949c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorMatteType); 82959c1eb0729653219b9da9037e044501a6dce79d10glennrp else 82969c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorType); 82979c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 83049c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 1; 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 83069c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 2; 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 83089c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 4; 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 83109c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 83129c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 16; 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83149c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83159c1eb0729653219b9da9037e044501a6dce79d10glennrp "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 83229c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 1; 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 83249c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 3; 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 83269c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 4; 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 83289c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 5; 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 83309c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 7; 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83329c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83339c1eb0729653219b9da9037e044501a6dce79d10glennrp "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8376bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 83833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 83903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 83923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 84313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 84753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 8481f2faecf9facdbbb14fcba373365f9f691a9658e0cristy &image->exception); 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8485e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Successfully read jpeg_image into a blob, length=%.20g.", 8486e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) length); 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 84994e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+4,(png_uint_32) image->columns); 85004e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+8,(png_uint_32) image->rows); 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8514f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " JNG width:%15lu",(unsigned long) image->columns); 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8516f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " JNG height:%14lu",(unsigned long) image->rows); 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8553bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 8560bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) (num_bytes-4L)); 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 8562bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_bKGD,(size_t) (num_bytes-4L)); 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 8585e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 8586e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 8587e610a071534e448c46460a5aa39ede33bf56b329glennrp (image->rendering_intent)); 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 8589e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 8590e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 8591e610a071534e448c46460a5aa39ede33bf56b329glennrp (PerceptualIntent)); 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 85933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 860535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 862235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); 862335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 862535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); 862635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 862835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); 862935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 863135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); 863235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 864735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 864935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 865735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 865935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 866535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (image->x_resolution+0.5)); 866635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (image->y_resolution+0.5)); 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 8682bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+4,(ssize_t) (image->page.x)); 8683bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+8,(ssize_t) (image->page.y)); 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 86983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8705bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8708bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8714e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write IDAT chunks from blob, length=%.20g.",(double) 8715f2faecf9facdbbb14fcba373365f9f691a9658e0cristy length); 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 8720bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=8; i<(ssize_t) length; i+=len+12) 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 8727bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) len); 8728bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_IDAT,(size_t) len); 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8737e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Skipping %c%c%c%c chunk, length=%.20g.", 8738e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy *(p),*(p+1),*(p+2),*(p+3),(double) len); 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8748e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write JDAA chunk, length=%.20g.",(double) length); 8749bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8787e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Created jpeg_image, %.20g x %.20g.",(double) jpeg_image->columns, 8788e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) jpeg_image->rows); 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 87933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8802e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Successfully read jpeg_image into a blob, length=%.20g.", 8803e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) length); 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8806e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write JDAT chunk, length=%.20g.",(double) length); 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 8809bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 88203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 889673bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8952bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8962bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8965bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8969d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER < 10200) 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 899273bd4a51b419e914565bdf204bf1540dc4c8ee26cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9046e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image_info depth: %.20g",(double) image_info->depth); 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9054e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Scene: %.20g",(double) scene++); 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9056e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image depth: %.20g",(double) p->depth); 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9071e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Number of colors: %.20g",(double) p->colors); 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 91169c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(p,PaletteMatteType); 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91189c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(p,PaletteType); 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92870261712cdc8fb4765add50146936e3ba2cb9fefaglennrp if (mng_info->adjoin) 9288d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp { 9289d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp final_delay=10; 9290d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp (void) ThrowMagickException(&image->exception, 9291d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp GetMagickModule(),CoderWarning, 9292d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp "input has zero delay between all frames; assuming", 9293d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp " 10 cs `%s'",""); 9294d908de4208e47f6b6ddb7c288b50d8f6d8845bb2glennrp } 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 93004e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy mng_info->ticks_per_second=(png_uint_32) (image->ticks_per_second/final_delay); 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 93274e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+4,(png_uint_32) mng_info->page.width); 93284e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.height); 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 9380bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 9381bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_nEED,(size_t) length); 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 94003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 94023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9407e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " TERM delay: %.20g",(double) (mng_info->ticks_per_second* 9408e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy final_delay/MagickMax(image->ticks_per_second,1))); 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9411e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " TERM iterations: %.20g",(double) PNG_UINT_31_MAX); 94123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9414e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image iterations: %.20g",(double) image->iterations); 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 9432e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 9433e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 9434e610a071534e448c46460a5aa39ede33bf56b329glennrp (image->rendering_intent)); 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 9436e610a071534e448c46460a5aa39ede33bf56b329glennrp chunk[4]=(unsigned char) 9437e610a071534e448c46460a5aa39ede33bf56b329glennrp PNG_RenderingIntent_from_Magick_RenderingIntent( 9438e610a071534e448c46460a5aa39ede33bf56b329glennrp (PerceptualIntent)); 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 94403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 945335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 947035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); 947135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 947335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); 947435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 947635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); 947735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 947935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); 948035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 949635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 949835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 950635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 950835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 951435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (image->x_resolution+0.5)); 951535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (image->y_resolution+0.5)); 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 95203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 95403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 95443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 95463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 95483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 95493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 95503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 95573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9558bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 95593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 95603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 95633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 95653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 95663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 95673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9568bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 95693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 95713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 95723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 95733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 95753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 95763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 95773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 95813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 95823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 95833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 95843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 95853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 95873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 95893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 95913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 95923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 95943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 95953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 95973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 95993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 96023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 96033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 96053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 96063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 96073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 96103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 9611bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 96123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 96133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 96153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 96163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 96173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9618bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 96193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 96213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 96223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 96233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 96253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 96263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 96273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 96283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 96313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 96323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 96343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 96353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9636bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 96373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 96383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 96393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 96413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 96433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 96443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 96463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 96483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 96493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 96513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 96523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 96533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 96553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 96563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 96573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 96583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 96593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 96603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 96613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 96623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 96633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 96643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 96653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 96703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 96723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 96733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 96753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 96763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 96773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 96793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 96823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 96843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 96853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 96863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 96873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 96883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 96893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 96913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 96943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 96963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 96973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 96983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 96993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 97003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 97013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 97023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 97033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 97043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 97053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 97063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 97073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 97083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 97094e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy mng_info->delay=(png_uint_32) image->delay; 97103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 97123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 97153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 97163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 97183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 97193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 97213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 97223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 97233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 97243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 97253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 97263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 97273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 97283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 97303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 97313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 97333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 97343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 97353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 97363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 97383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 97393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 97413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 97423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 97433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 97453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 97463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 97473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 97483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 97493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 97503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 97513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 97523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 97533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 97543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 97553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 97563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 97573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 97583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 97593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 97603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 97613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 97623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 97633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 97643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 97653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 97663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 97673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 97683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 97693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 97703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 97713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 97723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 97733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 97743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9775d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#else /* PNG_LIBPNG_VER > 10011 */ 97763ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 97773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 97783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 97793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 97803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 97813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 97823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 97833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 97843ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 97853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 97863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 97873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9788d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 97893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9790