png.c revision 4e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335
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 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBox 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2478182b0758e3429fb8dcd1700f09643fd4d80a41ccristy long 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2568182b0758e3429fb8dcd1700f09643fd4d80a41ccristy volatile long 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 265bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height, 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width; 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte[256]; 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reference_count; 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_sample_depth, 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy concrete, 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method, 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen, 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_type, 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixel_sample_depth, 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte_length, 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sample_depth, 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable; 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBuffer; 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngInfo 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBuffer 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ob[MNG_MAX_OBJECTS]; 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image * 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image; 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page; 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy adjoin, 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_in_read_buffer, 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy found_empty_plte, 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_backgrounds, 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_chrms, 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_gammas, 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_palettes, 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_physs, 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_srgbs, 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode, 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_bkgd, 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_chrm, 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_gama, 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_phys, 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_sbit, 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_srgb, 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_saved_bkgd_index, 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_chrm, 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_gama, 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_plte, 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_srgb, 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_fram, 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_framing_mode, 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy saved_bkgd_index; 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors; 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 344bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_found, 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_count[256], 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iteration[256], 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scenes_found, 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_off[MNG_MAX_OBJECTS], 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_off[MNG_MAX_OBJECTS]; 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clip, 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame, 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_box, 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_clip[MNG_MAX_OBJECTS]; 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* These flags could be combined into one byte */ 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exists[MNG_MAX_OBJECTS], 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen[MNG_MAX_OBJECTS], 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_active[256], 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy invisible[MNG_MAX_OBJECTS], 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable[MNG_MAX_OBJECTS]; 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_jump[256]; 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte; 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_8 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_sbit; 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_buffer[8], 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns[256]; 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy float 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_gamma; 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ChromaticityInfo 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_chrm; 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RenderingIntent 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_srgb_intent; 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39035ef824baa82511126ff0072ae30eee0da9c05a3cristy unsigned int 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy delay, 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte_length, 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns_length, 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_x_pixels_per_unit, 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_y_pixels_per_unit, 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_width, 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_height, 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ticks_per_second; 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IsPalette, 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_phys_unit_type, 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_warning, 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clon_warning, 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dhdr_warning, 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jhdr_warning, 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_warning, 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy past_warning, 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phyg_warning, 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phys_warning, 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sbit_warning, 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy show_warning, 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type, 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng, 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_colortype, 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_depth, 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png8, 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png24, 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png32; 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 422bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width, 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height; 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_depth, 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type, 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method, 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type, 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method, 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red, 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green, 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue, 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha, 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable; 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_global_bkgd; 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngInfo; 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* VER */ 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WritePNGImage(const ImageInfo *,Image *); 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteMNGImage(const ImageInfo *,Image *); 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteJNGImage(const ImageInfo *,Image *); 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 469bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickMax(const ssize_t x,const ssize_t y) 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickMin(const ssize_t x,const ssize_t y) 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 482d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 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 % 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% CompressColormapTransFirst compresses an image colormap removing 4963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% any duplicate and unused color entries and putting the transparent colors 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% first. Returns MagickTrue on success, MagickFalse on error. 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the CompressColormapTransFirst method is: 5003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned int CompressColormapTransFirst(Image *image) 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 5043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 50698156a3a465a004545e39434c63052b955a74d1cglennrp% This function updates image->colors and image->colormap. 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType CompressColormapTransFirst(Image *image) 5103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed, 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k; 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 515bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j, 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors, 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 5203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *colormap; 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 5255c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used; 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 533bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *map, 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *opacity; 5403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *marker, 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency; 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if colormap can be compressed. 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 55198156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 552e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " CompressColorMapTransFirst %s (%.20g colors)",image->filename, 553e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->colors); 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class != PseudoClass || image->colors > 256 || 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors < 2) 55698156a3a465a004545e39434c63052b955a74d1cglennrp { 55798156a3a465a004545e39434c63052b955a74d1cglennrp if (image->debug != MagickFalse) 55898156a3a465a004545e39434c63052b955a74d1cglennrp { 55998156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56098156a3a465a004545e39434c63052b955a74d1cglennrp " Could not compress colormap"); 56198156a3a465a004545e39434c63052b955a74d1cglennrp if (image->colors > 256 || image->colors == 0) 56298156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickFalse); 56398156a3a465a004545e39434c63052b955a74d1cglennrp else 56498156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickTrue); 56598156a3a465a004545e39434c63052b955a74d1cglennrp } 56698156a3a465a004545e39434c63052b955a74d1cglennrp } 5673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) AcquireQuantumMemory(image->colors,sizeof(*marker)); 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker == (unsigned char *) NULL) 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) AcquireQuantumMemory(image->colors,sizeof(*opacity)); 5723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity == (IndexPacket *) NULL) 5733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark colors that are present. 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 581bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy number_colors=(ssize_t) image->colors; 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 588bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5935c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetVirtualIndexQueue(image); 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 595bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5975c6f789db7a30bad01ace12b09ad9cd471339e94cristy marker[(int) indexes[x]]=MagickTrue; 5985c6f789db7a30bad01ace12b09ad9cd471339e94cristy opacity[(int) indexes[x]]=GetOpacityPixelComponent(p); 5995c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (indexes[x] > top_used) 6005c6f789db7a30bad01ace12b09ad9cd471339e94cristy top_used=indexes[x]; 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 604bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6065c6f789db7a30bad01ace12b09ad9cd471339e94cristy marker[(int) indexes[x]]=MagickTrue; 6075c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (indexes[x] > top_used) 6085c6f789db7a30bad01ace12b09ad9cd471339e94cristy top_used=indexes[x]; 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark background color, topmost occurrence if more than one. 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=number_colors-1; i; i--) 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsColorEqual(image->colormap+i,&image->background_color)) 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickTrue; 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Unmark duplicates. 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors-1; i++) 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Count colors that still remain. 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickFalse; 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors=0; 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors++; 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity[i] != OpaqueOpacity) 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickTrue; 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!have_transparency || (marker[0] && 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (opacity[0] == (Quantum) TransparentOpacity))) 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && (new_number_colors == number_colors)) 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No duplicate or unused entries, and transparency-swap not needed. 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickFalse; 662bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((ssize_t) top_used >= new_number_colors) 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Compress colormap. 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) AcquireQuantumMemory(image->colors, 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*colormap)); 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (colormap == (PixelPacket *) NULL) 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Eliminate unused colormap entries. 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) AcquireQuantumMemory((size_t) number_colors, 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*map)); 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map == (IndexPacket *) NULL) 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k=0; 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[i]=(IndexPacket) k; 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=(IndexPacket) k; 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k++; 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=0; 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[j]=image->colormap[i]; 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j++; 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Move the first transparent color to palette entry 0. 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < number_colors; i++) 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap; 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap=colormap[0]; 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[0]=colormap[(int) map[i]]; 732bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy colormap[(ssize_t) map[i]]=temp_colormap; 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < number_colors; j++) 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map[j] == 0) 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=map[i]; 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (map[j] == map[i]) 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=0; 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (remap_needed) 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Remap pixels. 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 764bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=GetAuthenticIndexQueue(image); 770bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=(int) pixels[x]; 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels[x]=map[j]; 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < new_number_colors; i++) 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i]=colormap[i]; 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 782bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) new_number_colors; 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) RelinquishMagickMemory(map); 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s G r a y % 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsGrayImage except does not change DirectClass to PseudoClass % 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsGray(Image *image) 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 808bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 820bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 825bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 830bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s M o n o c h r o m e % 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and is more accurate. % 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsMonochrome(Image *image) 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 861bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 872bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((IsGray(image->colormap+i) == MagickFalse) || 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->colormap[i].red != 0) && 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colormap[i].red != (Quantum) QuantumRange))) 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 881bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 886bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 900d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1012d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER > 10011) 1013bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic size_t WriteBlobMSBULong(Image *image,const size_t value) 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1058e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Writing %c%c%c%c chunk, length: %.20g", 1059e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1061d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1067d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 1181e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy "Expected %.20g bytes; found %.20g bytes",(double) length, 1182e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) check); 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1210bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1283bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy check=(png_size_t) WriteBlob(image,(size_t) length,data); 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1297bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 1306bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) a->colors; i++) 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 1343bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 1345bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 13523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1353bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 13543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 13893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1391bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.left=(ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 1392bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.right=(ssize_t) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 1393bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.top=(ssize_t) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 1394bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.bottom=(ssize_t) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 13993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 14093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 14103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 1411bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy Read two ssize_ts from CLON, MOVE or PAST chunk 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14138182b0758e3429fb8dcd1700f09643fd4d80a41ccristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14148182b0758e3429fb8dcd1700f09643fd4d80a41ccristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14238182b0758e3429fb8dcd1700f09643fd4d80a41ccristystatic long mng_get_long(unsigned char *p) 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14258182b0758e3429fb8dcd1700f09643fd4d80a41ccristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 1439faa852bad40107edae19405e76a299057668d795glennrp#if PNG_LIBPNG_VER < 10500 14403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 1441faa852bad40107edae19405e76a299057668d795glennrp#else 1442faa852bad40107edae19405e76a299057668d795glennrp png_longjmp(ping,1); 1443faa852bad40107edae19405e76a299057668d795glennrp#endif 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1456cc23b9a188db6b1f240825f6d4c52310f5f69765cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING,message); 14573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 14583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 14703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 14713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 14873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1498bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 14993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 15003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 15023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 15033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 15053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 15063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 15083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 15093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 15103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 1529f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy length=(png_uint_32) StringToLong(sp); 15303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 15403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 15443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 1550bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) nibbles; i++) 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 15533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 15553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 15753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 15953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 15963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 15973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1608bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.width=(size_t) ((chunk->data[0] << 24) | 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 1610bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.height=(size_t) ((chunk->data[4] << 24) | 16113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 16153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 16163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 16173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 16193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 16243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 16293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 16353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 16373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 16423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 16453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 16513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 16543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 16553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 16563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 1665faa852bad40107edae19405e76a299057668d795glennrp pass, 1666faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth, 1667faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, 1668faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method, 1669faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method, 1670faa852bad40107edae19405e76a299057668d795glennrp ping_filter_method, 1671faa852bad40107edae19405e76a299057668d795glennrp ping_num_trans; 16723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 16773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 16783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1679faa852bad40107edae19405e76a299057668d795glennrp png_bytep 1680faa852bad40107edae19405e76a299057668d795glennrp ping_trans_alpha; 1681faa852bad40107edae19405e76a299057668d795glennrp 1682faa852bad40107edae19405e76a299057668d795glennrp png_color_16p 1683faa852bad40107edae19405e76a299057668d795glennrp ping_background, 1684faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color; 1685faa852bad40107edae19405e76a299057668d795glennrp 16863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 16913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 16923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 16943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 16953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1696faa852bad40107edae19405e76a299057668d795glennrp png_uint_32 1697faa852bad40107edae19405e76a299057668d795glennrp ping_height, 1698faa852bad40107edae19405e76a299057668d795glennrp ping_width, 1699faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes; 1700faa852bad40107edae19405e76a299057668d795glennrp 17013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 17053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 17063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1707bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 17083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 17145c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 17153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1716bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 17173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1726bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 17273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 17283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 17303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 17313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 17373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 17383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 17393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 17423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 17433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1745f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 17463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 174825c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if (PNG_LIBPNG_VER < 10200) 17493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 17503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 17513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 17523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 175461b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 175561b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 175661b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 175761b4c957269727a0a2526edc2331881da8346100glennrp { 175861b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 175961b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 176061b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 176161b4c957269727a0a2526edc2331881da8346100glennrp } 176261b4c957269727a0a2526edc2331881da8346100glennrp# endif 176361b4c957269727a0a2526edc2331881da8346100glennrp#endif 176461b4c957269727a0a2526edc2331881da8346100glennrp 176561b4c957269727a0a2526edc2331881da8346100glennrp 1766ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 17673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 17683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 17713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 17733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 17743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 17753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 17763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 17773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 17783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 17793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 17813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 1795faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 17963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 18013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1802f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 18033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 18073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 18087b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 18097b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 18107b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 18117b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 18123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 18133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1817faa852bad40107edae19405e76a299057668d795glennrp 18183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 18193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 18203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 18213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 18283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 18423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 18483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1851991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp#if (PNG_LIBPNG_VER < 10400) 1852991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 1853991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 18543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 18553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 18563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 18623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 18633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 18643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1867991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# endif 18683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 1871faa852bad40107edae19405e76a299057668d795glennrp 1872faa852bad40107edae19405e76a299057668d795glennrp png_get_IHDR(ping,ping_info,&ping_width,&ping_height, 1873faa852bad40107edae19405e76a299057668d795glennrp &ping_bit_depth,&ping_color_type, 1874faa852bad40107edae19405e76a299057668d795glennrp &ping_interlace_method,&ping_compression_method, 1875faa852bad40107edae19405e76a299057668d795glennrp &ping_filter_method); 1876faa852bad40107edae19405e76a299057668d795glennrp 1877faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_num_trans, 1878faa852bad40107edae19405e76a299057668d795glennrp &ping_trans_color); 1879faa852bad40107edae19405e76a299057668d795glennrp 1880faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_bKGD(ping, ping_info, &ping_background); 1881faa852bad40107edae19405e76a299057668d795glennrp 1882faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 18833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1884faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 1885faa852bad40107edae19405e76a299057668d795glennrp { 1886faa852bad40107edae19405e76a299057668d795glennrp png_set_packing(ping); 1887faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth = 8; 1888faa852bad40107edae19405e76a299057668d795glennrp } 18893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1890faa852bad40107edae19405e76a299057668d795glennrp 1891faa852bad40107edae19405e76a299057668d795glennrp image->depth=ping_bit_depth; 18923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 1893faa852bad40107edae19405e76a299057668d795glennrp image->interlace=ping_interlace_method != 0 ? PNGInterlace : NoInterlace; 18943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1897e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " PNG width: %.20g, height: %.20g", 1898e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) ping_width, (double) ping_height); 18993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color_type: %d, bit_depth: %d", 1901faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, ping_bit_depth); 19023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG compression_method: %d", 1904faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method); 19053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG interlace_method: %d, filter_method: %d", 1907faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method,ping_filter_method); 19083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1910faa852bad40107edae19405e76a299057668d795glennrp#ifdef PNG_READ_iCCP_SUPPORTED 1911faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_iCCP)) 19123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression; 19153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 19173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy info, 19183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name; 19193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 19213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_length; 19223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, 19243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &profile_length); 19253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile_length != 0) 19263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 19283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 19293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG iCCP chunk."); 19333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(profile_length); 19343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetStringInfoDatum(profile,(const unsigned char *) info); 19353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,"icc",profile); 19363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 19373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sRGB_SUPPORTED) 19413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intent; 19443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_srgb) 19463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) 19473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->global_srgb_intent+1); 19483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_sRGB(ping,ping_info,&intent)) 19493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (intent+1); 19513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG sRGB chunk: rendering_intent: %d",intent+1); 19543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy double 19593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy file_gamma; 19603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1961faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_gAMA(ping,ping_info,&file_gamma)) 1962faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_gama) 1963faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,mng_info->global_gamma); 19643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_gAMA(ping,ping_info,&file_gamma)) 19653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=(float) file_gamma; 19673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG gAMA chunk: gamma: %f",file_gamma); 19703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1972faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 1973faa852bad40107edae19405e76a299057668d795glennrp { 1974faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_chrm != MagickFalse) 1975faa852bad40107edae19405e76a299057668d795glennrp { 1976faa852bad40107edae19405e76a299057668d795glennrp (void) png_set_cHRM(ping,ping_info, 1977faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.x, 1978faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.y, 1979faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.x, 1980faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.y, 1981faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.x, 1982faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.y, 1983faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.x, 1984faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.y); 1985faa852bad40107edae19405e76a299057668d795glennrp } 1986faa852bad40107edae19405e76a299057668d795glennrp } 1987faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 19883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_cHRM(ping,ping_info, 19903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.x, 19913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.y, 19923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.x, 19933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.y, 19943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.x, 19953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.y, 19963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.x, 19973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.y); 19983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG cHRM chunk."); 20013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent) 20033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2004faa852bad40107edae19405e76a299057668d795glennrp png_set_sRGB(ping,ping_info,image->rendering_intent-1); 2005faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,0.45455f); 2006faa852bad40107edae19405e76a299057668d795glennrp png_set_cHRM(ping,ping_info, 2007faa852bad40107edae19405e76a299057668d795glennrp 0.6400f, 0.3300f, 0.3000f, 0.6000f, 2008faa852bad40107edae19405e76a299057668d795glennrp 0.1500f, 0.0600f, 0.3127f, 0.3290f); 20093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 2011faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) 20123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=png_get_x_offset_pixels(ping, ping_info); 20143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=png_get_y_offset_pixels(ping, ping_info); 20153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 20173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2018e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading PNG oFFs chunk: x: %.20g, y: %.20g.",(double) 2019e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy image->page.x,(double) image->page.y); 20203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 2023faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 2024faa852bad40107edae19405e76a299057668d795glennrp { 2025faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_phys) 2026faa852bad40107edae19405e76a299057668d795glennrp { 2027faa852bad40107edae19405e76a299057668d795glennrp png_set_pHYs(ping,ping_info, 2028faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_x_pixels_per_unit, 2029faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_y_pixels_per_unit, 2030faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_phys_unit_type); 2031faa852bad40107edae19405e76a299057668d795glennrp } 2032faa852bad40107edae19405e76a299057668d795glennrp } 2033faa852bad40107edae19405e76a299057668d795glennrp 2034faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 20353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 20383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 20403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 20413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 20423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image resolution. 20453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, 20470881b52ab4fee8427578a694081946c4c4e92b35cristy &unit_type); 20480881b52ab4fee8427578a694081946c4c4e92b35cristy image->x_resolution=(double) x_resolution; 20490881b52ab4fee8427578a694081946c4c4e92b35cristy image->y_resolution=(double) y_resolution; 20503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 20513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 20533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 20543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 20553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2058e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading PNG pHYs chunk: xres: %.20g, yres: %.20g, units: %d.", 2059e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) x_resolution,(double) y_resolution,unit_type); 20603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2062faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 20633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 20663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 20683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 20693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 20713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((number_colors == 0) && 2072faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 20733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte_length) 20753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,mng_info->global_plte, 20773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_plte_length); 2078faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 20793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length) 20803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length > 20823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length) 20833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 20843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 20853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "global tRNS has more entries than global PLTE", 20863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 20873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_tRNS(ping,ping_info,mng_info->global_trns, 20883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_trns_length,NULL); 20893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 20913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ( 20923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 20933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index || 20943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2095faa852bad40107edae19405e76a299057668d795glennrp png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 20963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 20983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 20993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 21013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_saved_bkgd_index) 21023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=mng_info->saved_bkgd_index; 21033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2104faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping, ping_info, PNG_INFO_bKGD)) 2105faa852bad40107edae19405e76a299057668d795glennrp background.index=ping_background->index; 21063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 21073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].red; 21083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 21093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].green; 21103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 21113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].blue; 21123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 21133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 21183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No global PLTE in file","`%s'", 21193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 21203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 2124faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_bkgd && 2125faa852bad40107edae19405e76a299057668d795glennrp (!png_get_valid(ping,ping_info,PNG_INFO_bKGD))) 21263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_info->mng_global_bkgd; 2127faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 21283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image background color. 21313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG bKGD chunk."); 21352cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth == MAGICKCORE_QUANTUM_DEPTH) 21363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2137faa852bad40107edae19405e76a299057668d795glennrp image->background_color.red=ping_background->red; 2138faa852bad40107edae19405e76a299057668d795glennrp image->background_color.green=ping_background->green; 2139faa852bad40107edae19405e76a299057668d795glennrp image->background_color.blue=ping_background->blue; 21403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21412cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else /* Scale background components to 16-bit */ 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21432cbb4489df0a2a31907769956f217d4b9d982bd0glennrp unsigned int 21442cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale; 21452cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21462cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 21472cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21482cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " raw ping_background=(%d,%d,%d).",ping_background->red, 21492cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green,ping_background->blue); 21502cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21512cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 1; 21522cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth == 1) 21532cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 255; 21542cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else if (ping_bit_depth == 2) 21552cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 85; 21562cbb4489df0a2a31907769956f217d4b9d982bd0glennrp else if (ping_bit_depth == 4) 21572cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale = 17; 21582cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (ping_bit_depth <= 8) 21592cbb4489df0a2a31907769956f217d4b9d982bd0glennrp bkgd_scale *= 257; 21602cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21612cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->red *= bkgd_scale; 21622cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green *= bkgd_scale; 21632cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->blue *= bkgd_scale; 21642cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21652cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 21662cbb4489df0a2a31907769956f217d4b9d982bd0glennrp { 21672cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21682cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " bkgd_scale=%d.",bkgd_scale); 21692cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21702cbb4489df0a2a31907769956f217d4b9d982bd0glennrp " ping_background=(%d,%d,%d).",ping_background->red, 21712cbb4489df0a2a31907769956f217d4b9d982bd0glennrp ping_background->green,ping_background->blue); 21722cbb4489df0a2a31907769956f217d4b9d982bd0glennrp } 21732cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 2175faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->red); 21763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 2177faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->green); 21783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 2179faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->blue); 21802cbb4489df0a2a31907769956f217d4b9d982bd0glennrp 21812cbb4489df0a2a31907769956f217d4b9d982bd0glennrp if (logging != MagickFalse) 21822cbb4489df0a2a31907769956f217d4b9d982bd0glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2183e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->background_color=(%.20g,%.20g,%.20g).", 2184e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.red, 2185e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.green, 2186e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->background_color.blue); 21873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 21913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 21923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 21933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 2194faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 21953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 21983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 22013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 220235ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t 220335ef824baa82511126ff0072ae30eee0da9c05a3cristy one=1; 220435ef824baa82511126ff0072ae30eee0da9c05a3cristy 22053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 22083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2209f9cca6af1ff9b913c32a2cec81eda059877a8832cristy max_sample = (int) ((one << ping_bit_depth) - 1); 22103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2211faa852bad40107edae19405e76a299057668d795glennrp if ((ping_color_type == PNG_COLOR_TYPE_GRAY && 2212faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->gray > max_sample) || 2213faa852bad40107edae19405e76a299057668d795glennrp (ping_color_type == PNG_COLOR_TYPE_RGB && 2214faa852bad40107edae19405e76a299057668d795glennrp ((int)ping_trans_color->red > max_sample || 2215faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->green > max_sample || 2216faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->blue > max_sample))) 22173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 22213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 2222faa852bad40107edae19405e76a299057668d795glennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 22233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 22243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2227faa852bad40107edae19405e76a299057668d795glennrp transparent_color.red= (Quantum)(ping_trans_color->red); 2228faa852bad40107edae19405e76a299057668d795glennrp transparent_color.green= (Quantum) (ping_trans_color->green); 2229faa852bad40107edae19405e76a299057668d795glennrp transparent_color.blue= (Quantum) (ping_trans_color->blue); 2230faa852bad40107edae19405e76a299057668d795glennrp transparent_color.opacity= (Quantum) (ping_trans_color->gray); 2231faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 22323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2233faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 22343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=(Quantum) ((( 2236faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color->gray)*255)/max_sample); 22373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 22393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 22403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 22453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 22463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2247faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) 22483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 22493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 2252faa852bad40107edae19405e76a299057668d795glennrp 22533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 2254faa852bad40107edae19405e76a299057668d795glennrp 2255faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes=png_get_rowbytes(ping,ping_info); 2256faa852bad40107edae19405e76a299057668d795glennrp 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 22593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 2261bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.right=(ssize_t) ping_width; 22623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2263bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.bottom=(ssize_t) ping_height; 22643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 22653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2266faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_width=ping_width; 2267faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_height=ping_height; 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 22703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 22743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 2276faa852bad40107edae19405e76a299057668d795glennrp image->columns=ping_width; 2277faa852bad40107edae19405e76a299057668d795glennrp image->rows=ping_height; 2278faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 2279faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2280faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY)) 22813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2282befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy size_t 2283befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one; 2284befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy 22853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 2286befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one=1; 2287befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy image->colors=one << ping_bit_depth; 22883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 22893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 22903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 22913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 22943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2295faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 23013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 23023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 2304bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) number_colors; 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 23123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 23173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2318faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 23193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 23223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 23253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 2327bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 23313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 23323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2336bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2339faa852bad40107edae19405e76a299057668d795glennrp scale=(QuantumRange/((1UL << ping_bit_depth)-1)); 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 23413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 2342bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 23433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 23453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 23463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 23523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 2355347e40f2829bd04656674c58927cc50cda195475glennrp if ((image->ping != MagickFalse) || ( 2356347e40f2829bd04656674c58927cc50cda195475glennrp (image_info->number_scenes != 0) && (mng_info->scenes_found > (ssize_t) 2357347e40f2829bd04656674c58927cc50cda195475glennrp (image_info->first_scene+image_info->number_scenes)))) 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 2361e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Skipping PNG image data for scene %.20g",(double) 23623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 23633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2365f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 23703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 23713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 23763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 2377faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes*sizeof(*png_pixels)); 23783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2379faa852bad40107edae19405e76a299057668d795glennrp png_pixels=(unsigned char *) AcquireQuantumMemory(ping_rowbytes, 23803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 23813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 23823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2389faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 23903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 23933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2396f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 23993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 24023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 24033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 24053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 24067b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 24077b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 24087b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 24097b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 24113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2412ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2413ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2414ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 24153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 24223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 24233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 24243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2425bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy depth=(ssize_t) ping_bit_depth; 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2427faa852bad40107edae19405e76a299057668d795glennrp image->matte=(((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 2428faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2429faa852bad40107edae19405e76a299057668d795glennrp (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? 2430faa852bad40107edae19405e76a299057668d795glennrp MagickTrue : MagickFalse; 24313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2432bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 24333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2435faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 24363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2439abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 24433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 24473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 2451faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2453bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 24543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 2457faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) && 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2467faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB) 24683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2469faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 2470bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 24713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 24793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 24803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 24813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2489bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 24903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2500faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 2501bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (4*image->columns); x != 0; x--) 25023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2506faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 2507bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (2*image->columns); x != 0; x--) 25083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2513faa852bad40107edae19405e76a299057668d795glennrp if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_GRAY) 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 2516faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY || 2517faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 25183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 25203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 25223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2523faa852bad40107edae19405e76a299057668d795glennrp else if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_RGB) 25243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 2526faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB || 2527faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2533faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 25363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 2537faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY) 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 2540faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 2543faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 2546faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 25537a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 25547a287bfadeadea12e47c2376ca78a5d101687142cristy { 2555cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2556cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 25577a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 25587a287bfadeadea12e47c2376ca78a5d101687142cristy break; 25597a287bfadeadea12e47c2376ca78a5d101687142cristy } 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25637a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 25643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 25663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 25673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 25723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 25773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2582faa852bad40107edae19405e76a299057668d795glennrp image->matte=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 25833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 25863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2588bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 25893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2591faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 25923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25985c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 25993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2601faa852bad40107edae19405e76a299057668d795glennrp switch (ping_bit_depth) 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 26043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2605bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 26063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 26073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2608bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-7; x > 0; x-=8) 26093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2616bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (bit=7; bit >= (ssize_t) (8-(image->columns % 8)); bit--) 26173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2623bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-3; x > 0; x-=4) 26243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2632bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=3; i >= (ssize_t) (4-(image->columns % 4)); i--) 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2639bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x > 0; x-=2) 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 26463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2650faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 2651bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 26573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 26603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2663bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 26683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2669bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 2672bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2683faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 26913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 2692bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 26933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 27003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 27013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 27023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2703faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 27043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 27063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 270746f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 27083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 27093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 27123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 27133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2714faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 27153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 27173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 27183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2732bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 273380ac8b9110f1adf7202ed1f4f244cbb1a4e1a56fcristy indexes[x]=(IndexPacket) (*r++); 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 27353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27367a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 27377a287bfadeadea12e47c2376ca78a5d101687142cristy { 2738cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2739cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 27407a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 27417a287bfadeadea12e47c2376ca78a5d101687142cristy break; 27427a287bfadeadea12e47c2376ca78a5d101687142cristy } 27433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27447a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 27453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 27473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 27483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 27513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2752b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2753b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 27545c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (image->storage_class == PseudoClass) 27555c6f789db7a30bad01ace12b09ad9cd471339e94cristy { 2756aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy MagickBooleanType 27575c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte; 27585c6f789db7a30bad01ace12b09ad9cd471339e94cristy 27595c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte=image->matte; 27605c6f789db7a30bad01ace12b09ad9cd471339e94cristy image->matte=MagickFalse; 27615c6f789db7a30bad01ace12b09ad9cd471339e94cristy (void) SyncImage(image); 2762aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy image->matte=matte; 27635c6f789db7a30bad01ace12b09ad9cd471339e94cristy } 27643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 27653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 2767bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) image_info->first_scene && image->delay != 0) 27683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 27703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 27713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 27723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 27733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2774f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 27753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 27793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 27803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2781faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 27823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 27843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 27853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 27883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 27903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2791c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2792e805a647adebb9faefcbd7f9a73ca8e91870614acristy#if 1 /* balfour fix */ 2793c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2794c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2795c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2796c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2797faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2798c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2799faa852bad40107edae19405e76a299057668d795glennrp for (x=0; x < ping_num_trans; x++) 2800c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2801e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp image->colormap[x].opacity = 2802e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ScaleCharToQuantum((unsigned char)(255-ping_trans_alpha[x])); 2803c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2804c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2805faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2806c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 28075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (x=0; x < (int) image->colors; x++) 2808c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2809c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (image->colormap[x].red == transparent_color.opacity) 2810c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2811c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2812c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2813c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2814c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2815d027259799c88ed5e4f12d21a5366031bfef0904cristy (void) SyncImage(image); 2816c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2817c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2818c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2819c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2820bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 2821c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2822c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2823c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2824c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2825c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 28265c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 2827c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2828bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 2829c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2830c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ScaleQuantumToChar(q->red) == transparent_color.red && 2831c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->green) == transparent_color.green && 2832c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->blue) == transparent_color.blue) 2833c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2834c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2835c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2836c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2837c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2838c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2839c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2840c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2841c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2842c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2843c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2844c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2845c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2846bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 28473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28525c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2859faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2860bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28625c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2863faa852bad40107edae19405e76a299057668d795glennrp if (indexpacket < ping_num_trans) 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 2865bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (255-ping_trans_alpha[(ssize_t) indexpacket])); 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2867ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2870faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2871bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28735c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2874bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy q->red=image->colormap[(ssize_t) indexpacket].red; 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->red == transparent_color.opacity) 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2880ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2885bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ScaleQuantumToChar(q->red) == transparent_color.red && 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->green) == transparent_color.green && 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->blue) == transparent_color.blue) 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2892ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2898c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->depth > 8) 29033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 29043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 2906bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) num_text; i++) 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 29293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 29323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 29363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 29373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 29403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 29423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 29443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 295190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(MngBuffer)); 29523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 29553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 2984faa852bad40107edae19405e76a299057668d795glennrp if (ping_width > 250000L || ping_height > 250000L) 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 2986faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->width=ping_width; 2987faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->height=ping_height; 2988faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->color_type=ping_color_type; 2989faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->sample_depth=ping_bit_depth; 2990faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->interlace_method=ping_interlace_method; 2991faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->compression_method= 2992faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method; 2993faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->filter_method=ping_filter_method; 2994faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 3024f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 30533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 308390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3186bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3209bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3225bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3289e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading JNG chunk type %c%c%c%c, length: %.20g", 3290e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 3301bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3318bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 3320bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3335f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " jng_width: %16lu",(unsigned long) jng_width); 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3337f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " jng_width: %16lu",(unsigned long) jng_height); 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 338090823213d62b0ba18557e61f1e6892c6fffd6cd4cristy color_image_info=(ImageInfo *)AcquireAlignedMemory(1,sizeof(ImageInfo)); 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 340090823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(ImageInfo)); 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3477bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(alpha_image,(size_t) length); 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 35388182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->gamma=((float) mng_get_long(p))*0.00001; 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35478182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 35488182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 35498182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 35508182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 35518182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 35528182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 35538182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 35548182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (p[0]+1); 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35838182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->page.x=mng_get_long(p); 35848182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->page.y=mng_get_long(&p[4]); 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36008182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->x_resolution=(double) mng_get_long(p); 36018182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image->y_resolution=(double) mng_get_long(&p[4]); 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 3679bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 3712bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 3718bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 3721bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 37883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 384890823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(*mng_info)); 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3906bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile ssize_t 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3931bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3937bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3954bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 396338ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp /* These delays are all measured in image ticks_per_second, 396438ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp * not in MNG ticks_per_second 396538ea08308f079e4d21ad8b8ac465dcc3e1d78458glennrp */ 3966bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 39733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 402390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4052bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 4053bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4099e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Reading MNG chunk type %c%c%c%c, length: %.20g", 4100e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy type[0],type[1],type[2],type[3],(double) length); 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 4113bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4152bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 4154bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4159e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " MNG width: %.20g",(double) mng_info->mng_width); 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4161e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " MNG height: %.20g",(double) mng_info->mng_height); 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 41648182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->ticks_per_second=(size_t) mng_get_long(p); 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 41758182b0758e3429fb8dcd1700f09643fd4d80a41ccristy simplicity=(size_t) mng_get_long(p); 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 4201e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (void) FormatMagickString(page_geometry,MaxTextExtent, 4202e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy "%.20gx%.20g+0+0",(double) mng_info->mng_width,(double) 4203f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->mng_height); 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 4205bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.right=(ssize_t) mng_info->mng_width; 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 4207bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.bottom=(ssize_t) mng_info->mng_height; 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42258182b0758e3429fb8dcd1700f09643fd4d80a41ccristy final_delay=(png_uint_32) mng_get_long(&p[2]); 42268182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4237e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " final_delay=%.20g",(double) final_delay); 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4239e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->iterations=%.20g",(double) image->iterations); 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 42723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4283bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->x_off[object_id]=(ssize_t) ((p[4] << 24) | (p[5] << 16) | 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 4285bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->y_off[object_id]=(ssize_t) ((p[8] << 24) | (p[9] << 16) | 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4290e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " x_off[%d]: %.20g",object_id,(double) 4291f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->x_off[object_id]); 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4293e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " y_off[%d]: %.20g",object_id,(double) 4294f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->y_off[object_id]); 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 4357bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) (length/3); i++) 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 436335ef824baa82511126ff0072ae30eee0da9c05a3cristy mng_info->global_plte_length=(unsigned int) (length/3); 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 4385bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 439212560f31d66b4ef4afdcff2c20807c555dcf2f7dcristy mng_info->global_trns_length=(unsigned int) length; 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4400bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44038182b0758e3429fb8dcd1700f09643fd4d80a41ccristy igamma=mng_get_long(p); 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44208182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 44218182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 44228182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 44248182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[12]); 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 44268182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[16]); 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 44288182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[20]); 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 44308182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[24]); 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 44328182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(&p[28]); 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_srgb_intent=(RenderingIntent) (p[0]+1); 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 4489bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy while (*p && ((p-chunk) < (ssize_t) length)) 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 4492bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((p-chunk) < (ssize_t) (length-4)) 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45058182b0758e3429fb8dcd1700f09643fd4d80a41ccristy frame_delay=1UL*image->ticks_per_second* 45068182b0758e3429fb8dcd1700f09643fd4d80a41ccristy mng_get_long(p); 45078182b0758e3429fb8dcd1700f09643fd4d80a41ccristy if (mng_info->ticks_per_second != 0) 45088182b0758e3429fb8dcd1700f09643fd4d80a41ccristy frame_delay/=mng_info->ticks_per_second; 4509bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp else 4510bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_delay=PNG_UINT_31_MAX; 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4516e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Framing_delay=%.20g",(double) frame_delay); 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4520bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout=1UL*image->ticks_per_second* 4521bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp mng_get_long(p); 4522bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp if (mng_info->ticks_per_second != 0) 4523bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout/=mng_info->ticks_per_second; 4524bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp else 4525bb010dd620d8cf1743e64bc12f83e2bf1ffeddddglennrp frame_timeout=PNG_UINT_31_MAX; 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4531e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Framing_timeout=%.20g",(double) frame_timeout); 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4540e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Frame_clipping: L=%.20g R=%.20g T=%.20g B=%.20g", 4541e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) fb.left,(double) fb.right,(double) fb.top, 4542e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) fb.bottom); 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 4550bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_width=(size_t) (mng_info->clip.right 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 4552bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_height=(size_t) (mng_info->clip.bottom 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4560e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " subframe_width=%.20g, subframe_height=%.20g",(double) 4561e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy subframe_width,(double) subframe_height); 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4600e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", 4601e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.left,(double) mng_info->clip.right, 4602e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.top,(double) mng_info->clip.bottom); 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4661bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4664bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (j=0; j < (ssize_t) length; j+=2) 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4676bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 4685bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=(ssize_t) first_object; i <= (ssize_t) last_object; i++) 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4708bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t loop_iters=1; 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47148182b0758e3429fb8dcd1700f09643fd4d80a41ccristy loop_iters=mng_get_long(&chunk[1]); 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4717e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " LOOP level %.20g has %.20g iterations ",(double) loop_level, 4718e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) loop_iters); 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 4752e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " ENDL: LOOP level %.20g has %.20g remaining iterations ", 4753e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) loop_level,(double) 4754f2faecf9facdbbb14fcba373365f9f691a9658e0cristy mng_info->loop_count[loop_level]); 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 48973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 49368182b0758e3429fb8dcd1700f09643fd4d80a41ccristy (size_t) mng_get_long(p); 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 49388182b0758e3429fb8dcd1700f09643fd4d80a41ccristy (size_t) mng_get_long(&p[4]); 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 4961bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 4963bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 50278182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image_width=(size_t) mng_get_long(p); 50288182b0758e3429fb8dcd1700f09643fd4d80a41ccristy image_height=(size_t) mng_get_long(&p[4]); 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 50313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 5041bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.right < (ssize_t) mng_info->mng_width) || 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 5043bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.bottom < (ssize_t) mng_info->mng_height)) 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5082e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted transparent background layer, W=%.20g, H=%.20g", 5083e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->mng_width,(double) mng_info->mng_height); 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5129e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Inserted background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", 5130e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.left,(double) mng_info->clip.right, 5131e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) mng_info->clip.top,(double) mng_info->clip.bottom); 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 51513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 5180bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy offset=SeekBlob(image,-((ssize_t) length+12),SEEK_CUR); 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 52374e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width += (png_uint_32) ((image->columns-2)*(mng_info->magn_mx)); 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52414e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width=(png_uint_32) image->columns; 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 52474e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_width += (png_uint_32) ((image->columns-3)*(mng_info->magn_mx-1)); 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-2)*(mng_info->magn_my); 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52594e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_height=(png_uint_32) image->rows; 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 52654e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy magnified_height += (png_uint_32) ((image->rows-3)*(mng_info->magn_my-1)); 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5276bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5280bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 53023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 53233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5325bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 5329bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5365e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Magnify the rows to %.20g",(double) large_image->rows); 5366bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 5381bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 5384bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 5385bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-2) 5386bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5387bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy <= 1 && y == (ssize_t) image->rows-1) 5388bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5389bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-1) 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5392bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_my; 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 5396bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (y < (ssize_t) image->rows-1) 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5407bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert(yy < (ssize_t) large_image->rows); 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 5413bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54155c6f789db7a30bad01ace12b09ad9cd471339e94cristy /* TO DO: get color as function of indexes[x] */ 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 5433bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).red=(QM) (((ssize_t) (2*i*((*n).red 5434bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).red)+m))/((ssize_t) (m*2)) 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 5436bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).green=(QM) (((ssize_t) (2*i*((*n).green 5437bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).green)+m))/((ssize_t) (m*2)) 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 5439bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).blue=(QM) (((ssize_t) (2*i*((*n).blue 5440bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).blue)+m))/((ssize_t) (m*2)) 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 5443bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 5446bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).opacity); 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 54493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 54553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5466bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) (2*i*((*n).opacity 5467bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m))/((ssize_t) (m*2)) 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 54723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 54753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 54813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 54833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5497e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Magnify the columns to %.20g",(double) image->columns); 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5499bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 5507bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (image->columns-length); 5508bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy x < (ssize_t) image->columns; x++) 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5510bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (x == (ssize_t) (image->columns-length)) 5511bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_ml; 5512bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-2) 5513bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5514bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx <= 1 && x == (ssize_t) image->columns-1) 5515bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5516bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-1) 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5519bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mx; 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 5536bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).red); 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 5539bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy +m)/((ssize_t) (m*2))+(*pixels).green); 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 5542bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).blue); 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5545bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m)/((ssize_t) (m*2)) 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5568bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m) /((ssize_t) (m*2)) 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 55813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 55823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5586bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 5589bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 5645bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.width=(size_t) (crop_box.right-crop_box.left); 5646bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.height=(size_t) (crop_box.bottom-crop_box.top); 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 56553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5700bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->background_color.red >> 8) & 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 5702bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.red & 0xff)) && 5703bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.green >> 8) & 0xff) 5704bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.green & 0xff)) && 5705bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.blue >> 8) & 0xff) 5706bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.blue & 0xff))); 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5711bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (indx=0; indx < (ssize_t) image->colors; indx++) 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5713bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->colormap[indx].red >> 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 5715bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].red & 0xff)) && 5716bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].green >> 8) & 0xff) 5717bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].green & 0xff)) && 5718bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].blue >> 8) & 0xff) 5719bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].blue & 0xff))); 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5727bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5730bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5733bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5738bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 5741bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->red >> 8) & 0xff) == 5742bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->red & 0xff)) && 5743bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->green >> 8) & 0xff) == 5744bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->green & 0xff)) && 5745bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->blue >> 8) & 0xff) == 5746bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->blue & 0xff)) && 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 5748bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->opacity >> 8) & 0xff) == 5749bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->opacity & 0xff))))); 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 5771bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) (image_info->first_scene+image_info->number_scenes)) 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5889e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image->delay=%.20g, final_delay=%.20g",(double) image->delay, 5890e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) final_delay); 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5901e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene 0 delay=%.20g",(double) image->delay); 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5906e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene %.20g delay=%.20g",(double) scene++,(double) image->delay); 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5918bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5967e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene 0 delay=%.20g dispose=%.20g",(double) image->delay, 5968e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->dispose); 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 5970f2faecf9facdbbb14fcba373365f9f691a9658e0cristy { 5971f2faecf9facdbbb14fcba373365f9f691a9658e0cristy image=GetNextImageInList(image); 5972f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 5973e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " scene %.20g delay=%.20g dispose=%.20g",(double) scene++, 5974e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) image->delay,(double) image->dispose); 5975f2faecf9facdbbb14fcba373365f9f691a9658e0cristy } 5976f2faecf9facdbbb14fcba373365f9f691a9658e0cristy } 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 598425c1e2baba76d9cf3ec582f217f96af95259e747glennrp#else /* PNG_LIBPNG_VER > 10011 */ 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 599725c1e2baba76d9cf3ec582f217f96af95259e747glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 6020bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% size_t RegisterPNGImage(void) 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 6023bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristyModuleExport size_t RegisterPNGImage(void) 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 60803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 61143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 614518b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 614618b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 614718b17443128598500357da7bff2f01683cf32890cristy#endif 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6179514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 6180514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 618525c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if PNG_LIBPNG_VER > 10011 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 62053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 62143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 62153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 62473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 62483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 62533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6271bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6292e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (void) printf("writing raw profile: type=%s, length=%.20g\n", 6293e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (char *) profile_type, (double) length); 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 63033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 63063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 6313f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (png_size_t) (dp-text[0].text),"%8lu ",(unsigned long) length); 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 6315bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 63233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 63243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 63253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 63263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 63273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 63313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 63323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 63333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 63343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 63363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 63373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 63503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 63513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 63523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 63533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 63553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 63593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 63613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 63633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 63643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 63653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 63663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 63673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 63683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 63693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 63703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 63713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 63723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 63733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 63783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 63793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63803ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 63813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 63823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 63843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 63863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 63883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 63893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 63903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 63913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 63973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 63983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6399cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6400cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6401e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp png_byte 6402e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_trans_alpha[256]; 64035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 64053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 64063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_color_16 64085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background, 64095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color; 64105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 64123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 64133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 64153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 64163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_uint_32 64185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height, 64195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width; 64205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6421bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 64223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 64233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 64253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 64263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 64283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 64293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 64315c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 64323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6433bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 64343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 64353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 64363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 64383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 64393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 64413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 64423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 64433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp volatile int 64455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth, 64465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type, 64475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method, 64485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method, 64495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method, 64505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans; 64515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6452bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 64533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 64545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth, 64555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth; 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6457bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 64583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6466f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 64673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp /* Initialize some stuff */ 64705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=0, 64715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=0, 64725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=0, 64735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method=0, 64745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=0, 64755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans = 0; 64765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.red = 0; 64785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.green = 0; 64795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.blue = 0; 64805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.gray = 0; 64815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index = 0; 64825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64835af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=0; 64845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=0; 64855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=0; 64865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=0; 64875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6488ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 64893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 64913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 64943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 6496057310ded72df25c84f1ad647129a95c1f1753e3cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 64983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 65013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 65033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 65093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 65113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 65123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 65133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 65143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 65163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 65173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 65193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 65203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 65223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 65253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6532f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 65423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 65494e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy ping_width=(png_uint_32) image->columns; 65504e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy ping_height=(png_uint_32) image->rows; 65513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 65523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 65533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6565e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " width=%.20g",(double) ping_width); 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6567e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " height=%.20g",(double) ping_height); 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6569e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_matte=%.20g",(double) image->matte); 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6571e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_depth=%.20g",(double) image->depth); 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6573e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " requested PNG image_depth=%.20g",(double) image->depth); 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 65765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=(png_byte) save_image_depth; 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 65893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 65993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 66013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 66073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 66233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 66283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6629bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 66303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 66313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 66333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 66353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 66373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 66383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 66393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 66413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 66553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66645af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 66655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6673bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 66793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 66813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 66823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 66883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6690e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Colors quantized to %.20g",(double) number_colors); 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 670298156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 67033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 67043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 67053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 67063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 67073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 67083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 671198156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 671298156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 6713bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 67143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 67163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 67173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 67183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 67213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 67223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 67233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 67243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 6725f2faecf9facdbbb14fcba373365f9f691a9658e0cristy (long) i,palette[i].red,palette[i].green,palette[i].blue); 67263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 67293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 67313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 67333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 67343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 67375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 67385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 67433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp int 67455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[256]; 67465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 67493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 6751bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 67525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[i]=255; 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 6754bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 67603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67625c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 6763bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 67643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67675c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes[x]=(IndexPacket) (number_colors-1); 6768bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans_alpha[(ssize_t) indexes[x]]=(png_byte) (255- 6769ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6776bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 67775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (trans_alpha[i] != 255) 67785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 67795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 67815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping, ping_info, PNG_INFO_tRNS); 67825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping, ping_info, PNG_INFO_tRNS)) 67835af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 67845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 67855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp { 67865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (i=0; i<256; i++) 67875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans_alpha[i]; 67885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp } 67895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, 67915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha, 67925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans, 67935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 67943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 67973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6798bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 67995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 68003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 68023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 68043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 68063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 68083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 68123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 68143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 68223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) mng_info->write_png_colortype-1; 68245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 68255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 68263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 68293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 68335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) ((matte == MagickTrue)? 68343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 68383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 68413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 68463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 68473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 68483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 68493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 68513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 68553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 68563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 68573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68645af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp "Selected PNG colortype=%d",ping_color_type); 68653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 68695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB || 68705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 68715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 68723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 68815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 688835ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t one = 1; 68895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 689035ef824baa82511126ff0072ae30eee0da9c05a3cristy while ((int) (one << ping_bit_depth) < (ssize_t) image_colors) 68915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6896e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Number of colors: %.20g",(double) image_colors); 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG bit depth: %d",ping_bit_depth); 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth=ping_bit_depth; 69035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 69043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 69065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth > 8) 69075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = 8; 69085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth != (int) old_bit_depth) 69093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6912e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Colors increased to %.20g",(double) 6913f2faecf9facdbbb14fcba373365f9f691a9658e0cristy image_colors); 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 69213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6923e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Tentative PNG color type: %.20g",(double) ping_color_type); 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6925e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_info->type: %.20g",(double) image_info->type); 69263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6927e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " image_depth: %.20g",(double) image_depth); 69283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6929e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " ping_bit_depth: %.20g",(double) ping_bit_depth); 69303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 69333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 69353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 69363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 69385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 6939bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 69403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6944bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 69453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 69473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6957bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 69603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6962bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6971bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((y == (ssize_t) image->rows) && (x == (ssize_t) image->columns)) 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp No transparent pixels are present. Change 4 or 6 to 0 or 2. 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type&=0x03; 69783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 69833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 69855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 8) 69863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 69875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 4) 69883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 69895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 2) 69903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 69915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 1) 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 69935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=(png_uint_16) 6994ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 69955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=(png_uint_16) 6996ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 69975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=(png_uint_16) 6998ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 69995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 70015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.index=(png_byte) 700246f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 70035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, NULL, 0, 70045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 70103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7012bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 70153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 70163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7019bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p) == 0) 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 70263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 70273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 70313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 70323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p)) 70373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 70403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 70423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 70475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red&=0xff; 70555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green&=0xff; 70565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue&=0xff; 70575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray&=0xff; 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 70625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 70633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 70653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 70663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 70673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 706835ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t one=1; 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 70709c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 70713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY; 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 70755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 708035ef824baa82511126ff0072ae30eee0da9c05a3cristy image_colors=one << image_depth; 70813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 70825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=16; 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 70865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 70873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 70893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 709135ef824baa82511126ff0072ae30eee0da9c05a3cristy while ((int) (one << ping_bit_depth) 7092bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy < (ssize_t) image_colors) 70935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (mng_info->optimize && ping_color_type == 70973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 71023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 71043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 71063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7107bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image_colors; i++) 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 71153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 71229c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=1; 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 71249c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=2; 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 71269c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_bit_depth=4; 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 71303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7134bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 713517a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 713617a1485544c62993fc7a94e343c87fed5f3e6407glennrp 713717a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 713817a1485544c62993fc7a94e343c87fed5f3e6407glennrp 71393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 71433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 71453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71479c1eb0729653219b9da9037e044501a6dce79d10glennrp png_set_PLTE(ping,ping_info,NULL,0); 71489c1eb0729653219b9da9037e044501a6dce79d10glennrp if (logging) 71499c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71509c1eb0729653219b9da9037e044501a6dce79d10glennrp " Setting up empty PLTE chunk"); 71513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 7155bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 71563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 71573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 71613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 716498156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 71653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 71683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 71693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 7173bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 71743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 71763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 718198156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 718298156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 71873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7189befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy size_t 7190befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one; 7191befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy 71925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 7193befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy one=1; 7194befe4d21bf21c8f8fb5c8cc01fe60fe4accac47fcristy while ((one << ping_bit_depth) < number_colors) 71955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 72023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 72043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 72053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 72073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 72083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 72105c6f789db7a30bad01ace12b09ad9cd471339e94cristy *packet_indexes; 72113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 72143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 7216bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7219bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 72203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72245c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_indexes=GetVirtualIndexQueue(image); 7225bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 72283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 72303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 72313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72325c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_index=packet_indexes[x]; 7233bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert((size_t) packet_index < number_colors); 7234bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != 256) 72353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7236bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != (png_byte) (255- 7237ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) 72403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7244bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans[(ssize_t) packet_index]=(png_byte) (255- 7245ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 72525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 72535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_PLTE); 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 72563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 72583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7264bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 72653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 72695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 72703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 72735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 72745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 72755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 72765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 72779c1eb0729653219b9da9037e044501a6dce79d10glennrp { 72789c1eb0729653219b9da9037e044501a6dce79d10glennrp for (i=0; i < (ssize_t) number_colors; i++) 72799c1eb0729653219b9da9037e044501a6dce79d10glennrp ping_trans_alpha[i]=(png_byte) trans[i]; 72809c1eb0729653219b9da9037e044501a6dce79d10glennrp } 72813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red*=0x0101; 72925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green*=0x0101; 72935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue*=0x0101; 72945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8 && ping_color_type == 73023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 731035ef824baa82511126ff0072ae30eee0da9c05a3cristy size_t 731135ef824baa82511126ff0072ae30eee0da9c05a3cristy one=1; 731235ef824baa82511126ff0072ae30eee0da9c05a3cristy 731322ffd97a7a54140ebcfe886af90cbdb7bfe41e89cristy maxval=(png_uint_16) ((one << ping_bit_depth)-1); 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 73173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 73255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray)); 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 732717a1485544c62993fc7a94e343c87fed5f3e6407glennrp 732817a1485544c62993fc7a94e343c87fed5f3e6407glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 732917a1485544c62993fc7a94e343c87fed5f3e6407glennrp { 733017a1485544c62993fc7a94e343c87fed5f3e6407glennrp /* 733117a1485544c62993fc7a94e343c87fed5f3e6407glennrp Identify which colormap entry is the background color. 733217a1485544c62993fc7a94e343c87fed5f3e6407glennrp */ 733317a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7334bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 733517a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 733617a1485544c62993fc7a94e343c87fed5f3e6407glennrp 733717a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 733817a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7339bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 734017a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 734117a1485544c62993fc7a94e343c87fed5f3e6407glennrp break; 734217a1485544c62993fc7a94e343c87fed5f3e6407glennrp 734317a1485544c62993fc7a94e343c87fed5f3e6407glennrp ping_background.index=(png_byte) i; 734417a1485544c62993fc7a94e343c87fed5f3e6407glennrp 734517a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (logging) 734617a1485544c62993fc7a94e343c87fed5f3e6407glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 734717a1485544c62993fc7a94e343c87fed5f3e6407glennrp " Setting up bKGD chunk with index=%d",(int) i); 734817a1485544c62993fc7a94e343c87fed5f3e6407glennrp 734917a1485544c62993fc7a94e343c87fed5f3e6407glennrp png_set_bKGD(ping,ping_info,&ping_background); 735017a1485544c62993fc7a94e343c87fed5f3e6407glennrp } 735117a1485544c62993fc7a94e343c87fed5f3e6407glennrp 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color type: %d",ping_color_type); 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 73613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 73753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7376bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy level=(int) MagickMin((ssize_t) quality/10,9); 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 73933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 74005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || 74185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 74193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 74263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 74283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 74313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 74333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 74373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp#ifdef PNG_WRITE_iCCP_SUPPORTED 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 74463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 74563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 74573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 74623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 74703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_set_sRGB(ping,ping_info,(int) (image->rendering_intent-1)); 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 74773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 74853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 74863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 74883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 74893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 74963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 74973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 74983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 74993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 75013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 75083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 75093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 75103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=image_info->interlace != NoInterlace; 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 75223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB; 75255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 75265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 75315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 75355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (int) mng_info->write_png_depth != ping_bit_depth) || 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 75375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) mng_info->write_png_colortype-1 != ping_color_type && 7538991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 75395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp !(mng_info->write_png_colortype == 5 && ping_color_type == 0)))) 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 75443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 75473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 75485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth); 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 75513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 75543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 75555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type); 75563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 75653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 75663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 7567b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging != MagickFalse) 7568b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7569b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Added an opaque matte channel"); 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7572e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (image->matte == MagickTrue && ping_color_type < 4) 7573e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp { 7574e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (ping_color_type == 3 && ping_num_trans == 0) 7575e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp { 7576e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 7577e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (logging != MagickFalse) 7578e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7579e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp " Ignoring request to write tRNS chunk with num_trans==0"); 7580e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp } 7581e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp else 7582e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp (void) png_set_tRNS(ping, ping_info, 7583e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_trans_alpha, 7584e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp ping_num_trans, 7585e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp &ping_trans_color); 7586e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp } 7587e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_IHDR(ping,ping_info,ping_width,ping_height, 75935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth,ping_color_type, 75945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method,ping_compression_method, 75955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method); 75965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 75973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76069c1eb0729653219b9da9037e044501a6dce79d10glennrp unsigned char 76079c1eb0729653219b9da9037e044501a6dce79d10glennrp chunk[14]; 76089c1eb0729653219b9da9037e044501a6dce79d10glennrp 76099c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 76109c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGType(chunk,mng_vpAg); 76119c1eb0729653219b9da9037e044501a6dce79d10glennrp LogPNGChunk((int) logging,mng_vpAg,9L); 76129c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGLong(chunk+4,(png_uint_32) image->page.width); 76139c1eb0729653219b9da9037e044501a6dce79d10glennrp PNGLong(chunk+8,(png_uint_32) image->page.height); 76149c1eb0729653219b9da9037e044501a6dce79d10glennrp chunk[12]=0; /* unit = pixels */ 76159c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlob(image,13,chunk); 76169c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 76209c1eb0729653219b9da9037e044501a6dce79d10glennrp /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 76229c1eb0729653219b9da9037e044501a6dce79d10glennrp ping->mode |= PNG_HAVE_IDAT; 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 7631b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (image_depth > 8) 7632b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 76337202c101b42be63076be56386f79429bb2f39784cristy switch (ping_color_type) 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7635b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGB: 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 7637b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7638b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_GRAY_ALPHA: 7639b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 7640b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7641b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGBA: 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 7643b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7644b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp default: 7645b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 76463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7647b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging) 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7649b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7650b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing PNG image data"); 7651b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7652e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Allocating %.20g bytes of memory for pixels",(double) rowbytes); 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 76693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 76713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 76723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7676f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 76773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 76793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7680ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7681ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7682ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 76833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 76843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 76893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 76903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 76963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7701bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 77073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 7715bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 77163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 77173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 77183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 77243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 7726bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 77283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 7729b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7730b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7731b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (1)"); 77323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 77463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 77503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 77515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7754bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 77603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 77623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 7767b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7768b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7769b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY PNG pixels (2)"); 77703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 77723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7773b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7774b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7775b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (2)"); 77763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7779b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7780b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7781b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (2)"); 77823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 77953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 7797bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 78003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 78013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 78033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 78103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7812b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 7813b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7814b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7815b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7816b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7817b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (3)"); 7818b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 78193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 7825b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7826b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7827b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (3)"); 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && 78365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 78393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7844bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7846e9c26dc68fb7cff87adcf2677968737acc9d3d2cglennrp if (logging && y == 0) 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 78555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7856b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 785707cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7858b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7859b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (4)"); 7860b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7861b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7862b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 78633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 786607cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7867b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7868b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (4)"); 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7880b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7881b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7886b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Wrote PNG image data"); 78873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7888e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Width: %.20g",(double) ping_width); 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7890e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Height: %.20g",(double) ping_height); 78913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG bit-depth written: %d",ping_bit_depth); 78983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color-type written: %d",ping_color_type); 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG Interlace method: %d",ping_interlace_method); 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 79123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 79173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 79203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 79423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 79453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 79515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_width != mng_info->page.width) || 79525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_height != mng_info->page.height)) 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 79653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 79663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 79713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 79735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.x + ping_width)); 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 79765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.y + ping_height)); 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp s[0]=(char) ping_bit_depth; 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 8008f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 80373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 80583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 80613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 80933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 816190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81799c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 3 */ 4; 81809c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 81819c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 81839c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 81849c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,PaletteMatteType); 81859c1eb0729653219b9da9037e044501a6dce79d10glennrp else 81869c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,PaletteType); 81879c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81939c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 2 */ 3; 81949c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 81959c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 81969c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 81979c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorMatteType); 81989c1eb0729653219b9da9037e044501a6dce79d10glennrp else 81999c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorType); 82009c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82059c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = /* 6 */ 7; 82069c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 82079c1eb0729653219b9da9037e044501a6dce79d10glennrp image->depth = 8; 82089c1eb0729653219b9da9037e044501a6dce79d10glennrp if (image->matte == MagickTrue) 82099c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorMatteType); 82109c1eb0729653219b9da9037e044501a6dce79d10glennrp else 82119c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(image,TrueColorType); 82129c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SyncImage(image); 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 82199c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 1; 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 82219c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 2; 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 82239c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 4; 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 82259c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 8; 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 82279c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_depth = 16; 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82299c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82309c1eb0729653219b9da9037e044501a6dce79d10glennrp "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 82379c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 1; 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 82399c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 3; 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 82419c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 4; 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 82439c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 5; 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 82459c1eb0729653219b9da9037e044501a6dce79d10glennrp mng_info->write_png_colortype = 7; 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82479c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82489c1eb0729653219b9da9037e044501a6dce79d10glennrp "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8291bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 83903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 83923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 8396f2faecf9facdbbb14fcba373365f9f691a9658e0cristy &image->exception); 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8400e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Successfully read jpeg_image into a blob, length=%.20g.", 8401e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) length); 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 84144e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+4,(png_uint_32) image->columns); 84154e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+8,(png_uint_32) image->rows); 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8429f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " JNG width:%15lu",(unsigned long) image->columns); 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8431f2faecf9facdbbb14fcba373365f9f691a9658e0cristy " JNG height:%14lu",(unsigned long) image->rows); 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8468bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 8475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) (num_bytes-4L)); 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 8477bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_bKGD,(size_t) (num_bytes-4L)); 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 84853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 851635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 853335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); 853435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 853635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); 853735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 853935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); 854035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 854235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); 854335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 855835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 856035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 856835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 857035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 857635ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (image->x_resolution+0.5)); 857735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (image->y_resolution+0.5)); 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 8593bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+4,(ssize_t) (image->page.x)); 8594bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+8,(ssize_t) (image->page.y)); 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8616bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8619bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8625e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write IDAT chunks from blob, length=%.20g.",(double) 8626f2faecf9facdbbb14fcba373365f9f691a9658e0cristy length); 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 8631bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=8; i<(ssize_t) length; i+=len+12) 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 8638bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) len); 8639bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_IDAT,(size_t) len); 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8648e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Skipping %c%c%c%c chunk, length=%.20g.", 8649e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy *(p),*(p+1),*(p+2),*(p+3),(double) len); 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8659e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write JDAA chunk, length=%.20g.",(double) length); 8660bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8698e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Created jpeg_image, %.20g x %.20g.",(double) jpeg_image->columns, 8699e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) jpeg_image->rows); 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8713e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Successfully read jpeg_image into a blob, length=%.20g.", 8714e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy (double) length); 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8717e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Write JDAT chunk, length=%.20g.",(double) length); 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 8720bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 87373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 87383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 880790823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 88093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 88203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8863bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8873bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8876bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8880d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER < 10200) 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 890390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8957e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image_info depth: %.20g",(double) image_info->depth); 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8965e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Scene: %.20g",(double) scene++); 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8967e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image depth: %.20g",(double) p->depth); 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 8982e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Number of colors: %.20g",(double) p->colors); 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 90279c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(p,PaletteMatteType); 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90299c1eb0729653219b9da9037e044501a6dce79d10glennrp (void) SetImageType(p,PaletteType); 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=10; 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "input has zero delay between all frames; assuming 10 cs", 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",""); 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 92084e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy mng_info->ticks_per_second=(png_uint_32) (image->ticks_per_second/final_delay); 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 92354e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+4,(png_uint_32) mng_info->page.width); 92364e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.height); 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 9288bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 9289bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_nEED,(size_t) length); 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 92923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 92933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9315e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " TERM delay: %.20g",(double) (mng_info->ticks_per_second* 9316e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy final_delay/MagickMax(image->ticks_per_second,1))); 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9319e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " TERM iterations: %.20g",(double) PNG_UINT_31_MAX); 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9322e8c25f9b4c9fb72cad6db08eeda58c7c5784014ecristy " Image iterations: %.20g",(double) image->iterations); 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 935735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 937435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); 937535ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 937735ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); 937835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 938035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); 938135ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 938335ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); 938435ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 940035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 940235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 941035ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 941235ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 941835ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+4,(png_uint_32) (image->x_resolution+0.5)); 941935ef824baa82511126ff0072ae30eee0da9c05a3cristy PNGLong(chunk+8,(png_uint_32) (image->y_resolution+0.5)); 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 94333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 94403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9462bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9472bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 94983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 95063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 95143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 9515bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 95193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 95203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9522bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 95233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 95263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9540bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 95453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 95483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 95573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 95593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 95603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 95613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 95623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 95633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 95643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 95653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 95663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 95673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 95683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 95693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 95743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 95763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 95773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 95793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 95803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 95813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 95833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 95863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 95883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 95893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 95903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 95913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 95923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 95933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 95983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 96003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 96013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 96023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 96033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 96043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 96053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 96063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 96073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 96083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 96093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 96103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 96113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 96123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 96134e5bc84ff8bf274c4d9206d5e6ffd1a5e5d75335cristy mng_info->delay=(png_uint_32) image->delay; 96143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 96163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 96193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 96203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 96223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 96233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 96253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 96263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 96273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 96283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 96293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 96303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 96313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 96323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 96343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 96353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 96373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 96383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 96393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 96403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 96423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 96433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 96453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 96463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 96473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 96493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 96503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 96513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 96523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 96533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 96543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 96553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 96563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 96573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 96583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 96593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 96603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 96613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 96633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 96653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 96663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 96673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 96683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 96693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 96703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 96713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 96723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 96733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 96743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 96753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 96763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 96773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 96783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9679d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#else /* PNG_LIBPNG_VER > 10011 */ 96803ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 96813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 96823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 96833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 96843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 96853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 96863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 96873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 96883ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 96893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 96903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 96913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9692d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 96933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9694