png.c revision d027259799c88ed5e4f12d21a5366031bfef0904
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" 513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/colorspace.h" 523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/constitute.h" 533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/enhance.h" 543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception.h" 553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception-private.h" 563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/geometry.h" 57f2e1166e90de2dfe2e6a2aed7cd5f73640f34a7acristy#include "magick/histogram.h" 583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image.h" 593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image-private.h" 603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/layer.h" 613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/list.h" 623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/log.h" 633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/magick.h" 643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/memory_.h" 653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/module.h" 663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor.h" 673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor-private.h" 683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/option.h" 693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/profile.h" 713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/property.h" 723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantize.h" 733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/resource_.h" 743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/semaphore.h" 753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/static.h" 773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/statistic.h" 783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/string_.h" 79f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy#include "magick/string-private.h" 803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/transform.h" 813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/utility.h" 823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 83286a6355c4544b794da2b6df973faad07c69e541glennrp 847ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp/* Suppress libpng pedantic warnings that were added in 857ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * libpng-1.2.41 and libpng-1.4.0. If you are working on 86faa852bad40107edae19405e76a299057668d795glennrp * migration to libpng-1.5, remove these defines and then 877ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * fix any code that generates warnings. 887ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp */ 89991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp/* #define PNG_DEPRECATED Use of this function is deprecated */ 90faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_USE_RESULT The result of this function must be checked */ 91faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_NORETURN This function does not return */ 92faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_ALLOCATED The result of the function is new memory */ 93faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_DEPSTRUCT Access to this struct member is deprecated */ 94286a6355c4544b794da2b6df973faad07c69e541glennrp 953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "png.h" 963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "zlib.h" 973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* ImageMagick differences */ 993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define first_scene scene 1003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 101d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 1023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Optional declarations. Define or undefine them as you like. 1043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* #define PNG_DEBUG -- turning this on breaks VisualC compiling */ 1063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Features under construction. Define these to work on them. 1093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_OBJECT_BUFFERS 1113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_BASI_SUPPORTED 1123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_COALESCE_LAYERS /* In 5.4.4, this interfered with MMAP'ed files. */ 1133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_INSERT_LAYERS /* Troublesome, but seem to work as of 5.4.4 */ 1143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_BUILD_PALETTE /* This works as of 5.4.3. */ 1153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SORT_PALETTE /* This works as of 5.4.0. */ 1163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_JPEG_DELEGATE) 1173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define JNG_SUPPORTED /* Not finished as of 5.5.2. See "To do" comments. */ 1183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(RGBColorMatchExact) 1203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define IsPNGColorEqual(color,target) \ 1213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((color).red == (target).red) && \ 1223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).green == (target).green) && \ 1233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).blue == (target).blue)) 1243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Establish thread safety. 1283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is claimed to be safe on these platforms: 1293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is alleged to be unsafe on these platforms: 1303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef SETJMP_IS_THREAD_SAFE 1323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SETJMP_NOT_THREAD_SAFE 1333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic SemaphoreInfo 1373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_semaphore = (SemaphoreInfo *) NULL; 1383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This temporary until I set up malloc'ed object attributes array. 1423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Recompile with MNG_MAX_OBJECTS=65536L to avoid this limit but 1433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy waste more memory. 1443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_MAX_OBJECTS 256 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If this not defined, spec is interpreted strictly. If it is 1493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined, an attempt will be made to recover from some errors, 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy including 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o global PLTE too short 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_LOOSE 1543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Don't try to define PNG_MNG_FEATURES_SUPPORTED here. Make sure 1573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy it's defined in libpng/pngconf.h, version 1.0.9 or later. It won't work 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy with earlier versions of libpng. From libpng-1.0.3a to libpng-1.0.8, 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_READ|WRITE_EMPTY_PLTE were used but those have been deprecated in 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy libpng in favor of PNG_MNG_FEATURES_SUPPORTED, so we set them here. 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_MNG_FEATURES_SUPPORTED is disabled by default in libpng-1.0.9 and 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy will be enabled by default in libpng-1.2.0. 1633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_MNG_FEATURES_SUPPORTED 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 1663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_READ_EMPTY_PLTE_SUPPORTED 1673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_WRITE_EMPTY_PLTE_SUPPORTED 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_WRITE_EMPTY_PLTE_SUPPORTED 1703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Maximum valid unsigned long in PNG/MNG chunks is (2^31)-1 1753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This macro is only defined in libpng-1.0.3 and later. 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Previously it was PNG_MAX_UINT but that was deprecated in libpng-1.2.6 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_UINT_31_MAX 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_UINT_31_MAX (png_uint_32) 0x7fffffffL 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Constant strings for known chunk types. If you need to add a chunk, 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy add a string holding the name here. To make the code more 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy portable, we use ASCII numbers like this, not characters. 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1883ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MHDR[5]={ 77, 72, 68, 82, (png_byte) '\0'}; 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BACK[5]={ 66, 65, 67, 75, (png_byte) '\0'}; 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BASI[5]={ 66, 65, 83, 73, (png_byte) '\0'}; 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLIP[5]={ 67, 76, 73, 80, (png_byte) '\0'}; 1923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLON[5]={ 67, 76, 79, 78, (png_byte) '\0'}; 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DEFI[5]={ 68, 69, 70, 73, (png_byte) '\0'}; 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DHDR[5]={ 68, 72, 68, 82, (png_byte) '\0'}; 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DISC[5]={ 68, 73, 83, 67, (png_byte) '\0'}; 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_ENDL[5]={ 69, 78, 68, 76, (png_byte) '\0'}; 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_FRAM[5]={ 70, 82, 65, 77, (png_byte) '\0'}; 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IEND[5]={ 73, 69, 78, 68, (png_byte) '\0'}; 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IHDR[5]={ 73, 72, 68, 82, (png_byte) '\0'}; 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JHDR[5]={ 74, 72, 68, 82, (png_byte) '\0'}; 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_LOOP[5]={ 76, 79, 79, 80, (png_byte) '\0'}; 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MAGN[5]={ 77, 65, 71, 78, (png_byte) '\0'}; 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MEND[5]={ 77, 69, 78, 68, (png_byte) '\0'}; 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MOVE[5]={ 77, 79, 86, 69, (png_byte) '\0'}; 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PAST[5]={ 80, 65, 83, 84, (png_byte) '\0'}; 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PLTE[5]={ 80, 76, 84, 69, (png_byte) '\0'}; 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SAVE[5]={ 83, 65, 86, 69, (png_byte) '\0'}; 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SEEK[5]={ 83, 69, 69, 75, (png_byte) '\0'}; 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SHOW[5]={ 83, 72, 79, 87, (png_byte) '\0'}; 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_TERM[5]={ 84, 69, 82, 77, (png_byte) '\0'}; 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_bKGD[5]={ 98, 75, 71, 68, (png_byte) '\0'}; 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_cHRM[5]={ 99, 72, 82, 77, (png_byte) '\0'}; 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_gAMA[5]={103, 65, 77, 65, (png_byte) '\0'}; 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_nEED[5]={110, 69, 69, 68, (png_byte) '\0'}; 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYg[5]={112, 72, 89, 103, (png_byte) '\0'}; 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYs[5]={112, 72, 89, 115, (png_byte) '\0'}; 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sBIT[5]={115, 66, 73, 84, (png_byte) '\0'}; 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sRGB[5]={115, 82, 71, 66, (png_byte) '\0'}; 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tRNS[5]={116, 82, 78, 83, (png_byte) '\0'}; 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IDAT[5]={ 73, 68, 65, 84, (png_byte) '\0'}; 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAT[5]={ 74, 68, 65, 84, (png_byte) '\0'}; 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAA[5]={ 74, 68, 65, 65, (png_byte) '\0'}; 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JdAA[5]={ 74, 100, 65, 65, (png_byte) '\0'}; 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JSEP[5]={ 74, 83, 69, 80, (png_byte) '\0'}; 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_oFFs[5]={111, 70, 70, 115, (png_byte) '\0'}; 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristyOther known chunks that are not yet supported by ImageMagick: 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_hIST[5]={104, 73, 83, 84, (png_byte) '\0'}; 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iTXt[5]={105, 84, 88, 116, (png_byte) '\0'}; 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sPLT[5]={115, 80, 76, 84, (png_byte) '\0'}; 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sTER[5]={115, 84, 69, 82, (png_byte) '\0'}; 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tEXt[5]={116, 69, 88, 116, (png_byte) '\0'}; 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tIME[5]={116, 73, 77, 69, (png_byte) '\0'}; 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_zTXt[5]={122, 84, 88, 116, (png_byte) '\0'}; 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBox 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 2473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height, 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width; 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte[256]; 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reference_count; 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_sample_depth, 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy concrete, 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method, 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen, 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_type, 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixel_sample_depth, 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte_length, 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sample_depth, 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable; 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBuffer; 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngInfo 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBuffer 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ob[MNG_MAX_OBJECTS]; 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image * 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image; 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page; 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy adjoin, 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_in_read_buffer, 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy found_empty_plte, 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_backgrounds, 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_chrms, 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_gammas, 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_palettes, 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_physs, 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_srgbs, 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode, 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_bkgd, 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_chrm, 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_gama, 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_phys, 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_sbit, 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_srgb, 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_saved_bkgd_index, 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_chrm, 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_gama, 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_plte, 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_srgb, 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_fram, 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_framing_mode, 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy saved_bkgd_index; 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors; 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_found, 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_count[256], 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iteration[256], 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scenes_found, 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_off[MNG_MAX_OBJECTS], 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_off[MNG_MAX_OBJECTS]; 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clip, 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame, 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_box, 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_clip[MNG_MAX_OBJECTS]; 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* These flags could be combined into one byte */ 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exists[MNG_MAX_OBJECTS], 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen[MNG_MAX_OBJECTS], 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_active[256], 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy invisible[MNG_MAX_OBJECTS], 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable[MNG_MAX_OBJECTS]; 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_jump[256]; 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte; 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_8 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_sbit; 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_buffer[8], 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns[256]; 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy float 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_gamma; 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ChromaticityInfo 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_chrm; 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RenderingIntent 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_srgb_intent; 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy delay, 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte_length, 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns_length, 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_x_pixels_per_unit, 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_y_pixels_per_unit, 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_width, 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_height, 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ticks_per_second; 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IsPalette, 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_phys_unit_type, 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_warning, 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clon_warning, 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dhdr_warning, 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jhdr_warning, 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_warning, 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy past_warning, 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phyg_warning, 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phys_warning, 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sbit_warning, 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy show_warning, 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type, 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng, 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_colortype, 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_depth, 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png8, 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png24, 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png32; 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width, 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height; 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_depth, 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type, 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method, 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type, 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method, 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red, 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green, 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue, 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha, 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable; 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_global_bkgd; 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngInfo; 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* VER */ 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WritePNGImage(const ImageInfo *,Image *); 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteMNGImage(const ImageInfo *,Image *); 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteJNGImage(const ImageInfo *,Image *); 4663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMax(const long x,const long y) 4693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMin(const long x,const long y) 4753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 481d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 4823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 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 % 4893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% CompressColormapTransFirst compresses an image colormap removing 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% any duplicate and unused color entries and putting the transparent colors 4963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% first. Returns MagickTrue on success, MagickFalse on error. 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the CompressColormapTransFirst method is: 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned int CompressColormapTransFirst(Image *image) 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 50598156a3a465a004545e39434c63052b955a74d1cglennrp% This function updates image->colors and image->colormap. 5063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType CompressColormapTransFirst(Image *image) 5093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed, 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k; 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 5153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j, 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors, 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *colormap; 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 5253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used; 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *map, 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *opacity; 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *marker, 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency; 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if colormap can be compressed. 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 55098156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55198156a3a465a004545e39434c63052b955a74d1cglennrp " CompressColorMapTransFirst %s (%ld colors)", 55298156a3a465a004545e39434c63052b955a74d1cglennrp image->filename,image->colors); 5533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class != PseudoClass || image->colors > 256 || 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors < 2) 55598156a3a465a004545e39434c63052b955a74d1cglennrp { 55698156a3a465a004545e39434c63052b955a74d1cglennrp if (image->debug != MagickFalse) 55798156a3a465a004545e39434c63052b955a74d1cglennrp { 55898156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55998156a3a465a004545e39434c63052b955a74d1cglennrp " Could not compress colormap"); 56098156a3a465a004545e39434c63052b955a74d1cglennrp if (image->colors > 256 || image->colors == 0) 56198156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickFalse); 56298156a3a465a004545e39434c63052b955a74d1cglennrp else 56398156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickTrue); 56498156a3a465a004545e39434c63052b955a74d1cglennrp } 56598156a3a465a004545e39434c63052b955a74d1cglennrp } 5663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) AcquireQuantumMemory(image->colors,sizeof(*marker)); 5673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker == (unsigned char *) NULL) 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) AcquireQuantumMemory(image->colors,sizeof(*opacity)); 5713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity == (IndexPacket *) NULL) 5723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 5743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark colors that are present. 5793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=(long) image->colors; 5813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetVirtualIndexQueue(image); 5933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[(int) indices[x]]=MagickTrue; 597ce70c17bb6433add2eb069515a4f3105989e0662cristy opacity[(int) indices[x]]=GetOpacityPixelComponent(p); 5983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indices[x] > top_used) 5993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=indices[x]; 6003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 6043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[(int) indices[x]]=MagickTrue; 6063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indices[x] > top_used) 6073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=indices[x]; 6083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark background color, topmost occurrence if more than one. 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=number_colors-1; i; i--) 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsColorEqual(image->colormap+i,&image->background_color)) 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickTrue; 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Unmark duplicates. 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors-1; i++) 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Count colors that still remain. 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickFalse; 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors=0; 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors++; 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity[i] != OpaqueOpacity) 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickTrue; 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!have_transparency || (marker[0] && 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (opacity[0] == (Quantum) TransparentOpacity))) 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && (new_number_colors == number_colors)) 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No duplicate or unused entries, and transparency-swap not needed. 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickFalse; 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((long) top_used >= new_number_colors) 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Compress colormap. 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) AcquireQuantumMemory(image->colors, 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*colormap)); 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (colormap == (PixelPacket *) NULL) 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Eliminate unused colormap entries. 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) AcquireQuantumMemory((size_t) number_colors, 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*map)); 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map == (IndexPacket *) NULL) 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k=0; 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[i]=(IndexPacket) k; 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=(IndexPacket) k; 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k++; 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=0; 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[j]=image->colormap[i]; 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j++; 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Move the first transparent color to palette entry 0. 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < number_colors; i++) 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap; 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap=colormap[0]; 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[0]=colormap[(int) map[i]]; 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[(long) map[i]]=temp_colormap; 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < number_colors; j++) 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map[j] == 0) 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=map[i]; 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (map[j] == map[i]) 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=0; 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (remap_needed) 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Remap pixels. 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=GetAuthenticIndexQueue(image); 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=(int) pixels[x]; 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels[x]=map[j]; 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < new_number_colors; i++) 7783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i]=colormap[i]; 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) new_number_colors; 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) RelinquishMagickMemory(map); 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s G r a y % 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsGrayImage except does not change DirectClass to PseudoClass % 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsGray(Image *image) 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 8303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s M o n o c h r o m e % 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and is more accurate. % 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsMonochrome(Image *image) 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((IsGray(image->colormap+i) == MagickFalse) || 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->colormap[i].red != 0) && 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colormap[i].red != (Quantum) QuantumRange))) 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 899d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1011d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER > 10011) 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic size_t WriteBlobMSBULong(Image *image,const unsigned long value) 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing %c%c%c%c chunk, length: %lu", 10583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],(unsigned long) length); 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1060d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1066d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 10673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 11583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Expected %lu bytes; found %lu bytes",(unsigned long) length, 11813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) check); 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) WriteBlob(image,(unsigned long) length,data); 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) a->colors; i++) 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 13293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 13433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 13453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 13533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 13893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 13913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 13923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=(long) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 13933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=(long) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 13943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 13993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 14093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 14103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read two longs from CLON, MOVE or PAST chunk 14113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic long mng_get_long(unsigned char *p) 14233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 1438faa852bad40107edae19405e76a299057668d795glennrp#if PNG_LIBPNG_VER < 10500 14393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 1440faa852bad40107edae19405e76a299057668d795glennrp#else 1441faa852bad40107edae19405e76a299057668d795glennrp png_longjmp(ping,1); 1442faa852bad40107edae19405e76a299057668d795glennrp#endif 14433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING, 14563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 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{ 14983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 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; 15503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) 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 16083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=(unsigned long) ((chunk->data[0] << 24) | 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 16103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=(unsigned long) ((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 17073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 17083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 17143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 17153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 17173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 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(), 18973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG width: %lu, height: %lu", 1898faa852bad40107edae19405e76a299057668d795glennrp ping_width, 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(), 20183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG oFFs chunk: x: %ld, y: %ld.",image->page.x, 20193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 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, 20473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &unit_type); 20483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(float) x_resolution; 20493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(float) 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(), 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG pHYs chunk: xres: %lu, yres: %lu, units: %d.", 20593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 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."); 2135faa852bad40107edae19405e76a299057668d795glennrp 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 } 21413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 2144faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->red); 21453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 2146faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->green); 21473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 2148faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->blue); 21493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 21533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 21543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 21553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 2156faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 21573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 21603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 21623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 21633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 21673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2168faa852bad40107edae19405e76a299057668d795glennrp max_sample = (1 << ping_bit_depth) - 1; 21693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2170faa852bad40107edae19405e76a299057668d795glennrp if ((ping_color_type == PNG_COLOR_TYPE_GRAY && 2171faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->gray > max_sample) || 2172faa852bad40107edae19405e76a299057668d795glennrp (ping_color_type == PNG_COLOR_TYPE_RGB && 2173faa852bad40107edae19405e76a299057668d795glennrp ((int)ping_trans_color->red > max_sample || 2174faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->green > max_sample || 2175faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->blue > max_sample))) 21763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 21803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 2181faa852bad40107edae19405e76a299057668d795glennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 21823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 21833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2186faa852bad40107edae19405e76a299057668d795glennrp transparent_color.red= (Quantum)(ping_trans_color->red); 2187faa852bad40107edae19405e76a299057668d795glennrp transparent_color.green= (Quantum) (ping_trans_color->green); 2188faa852bad40107edae19405e76a299057668d795glennrp transparent_color.blue= (Quantum) (ping_trans_color->blue); 2189faa852bad40107edae19405e76a299057668d795glennrp transparent_color.opacity= (Quantum) (ping_trans_color->gray); 2190faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 21913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2192faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 21933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=(Quantum) ((( 2195faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color->gray)*255)/max_sample); 21963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 21983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 21993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 22003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 22043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 22053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2206faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) 22073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 22083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 2211faa852bad40107edae19405e76a299057668d795glennrp 22123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 2213faa852bad40107edae19405e76a299057668d795glennrp 2214faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes=png_get_rowbytes(ping,ping_info); 2215faa852bad40107edae19405e76a299057668d795glennrp 22163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 22183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 2220faa852bad40107edae19405e76a299057668d795glennrp mng_info->image_box.right=(long) ping_width; 22213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2222faa852bad40107edae19405e76a299057668d795glennrp mng_info->image_box.bottom=(long) ping_height; 22233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 22243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2225faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_width=ping_width; 2226faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_height=ping_height; 22273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 22283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 22293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 22333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 2235faa852bad40107edae19405e76a299057668d795glennrp image->columns=ping_width; 2236faa852bad40107edae19405e76a299057668d795glennrp image->rows=ping_height; 2237faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 2238faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2239faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY)) 22403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 2242faa852bad40107edae19405e76a299057668d795glennrp image->colors=1UL << ping_bit_depth; 22433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 22443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 22453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 22463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 22473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 22483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 22493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2250faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 22513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) number_colors; 22603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 22633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 22673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 22703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 22723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2273faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 22743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 22853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 22863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 22873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2294faa852bad40107edae19405e76a299057668d795glennrp scale=(QuantumRange/((1UL << ping_bit_depth)-1)); 22953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 22973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 23003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 23013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 23023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 23073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 23103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->number_scenes != 0) && (mng_info->scenes_found > (long) 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->first_scene+image_info->number_scenes))) 23123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping PNG image data for scene %ld", 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 23173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2319f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 23253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 23293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 2331faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes*sizeof(*png_pixels)); 23323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2333faa852bad40107edae19405e76a299057668d795glennrp png_pixels=(unsigned char *) AcquireQuantumMemory(ping_rowbytes, 23343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 23363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 23423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2343faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 23443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2350f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 23533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 23553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 23563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 23607b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 23617b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 23627b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 23637b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 23643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 23653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2366ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2367ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2368ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 23703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 23713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 23763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 23783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2379faa852bad40107edae19405e76a299057668d795glennrp depth=(long) ping_bit_depth; 23803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2381faa852bad40107edae19405e76a299057668d795glennrp image->matte=(((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 2382faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2383faa852bad40107edae19405e76a299057668d795glennrp (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? 2384faa852bad40107edae19405e76a299057668d795glennrp MagickTrue : MagickFalse; 23853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 23873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2389faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 23903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 23923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2393abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 23943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 24023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 2405faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 24063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 2411faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) && 24123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 24133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2421faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB) 24223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2423faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 24243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 24333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 24353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2454faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (4*image->columns); x != 0; x--) 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2460faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (2*image->columns); x != 0; x--) 24623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2467faa852bad40107edae19405e76a299057668d795glennrp if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_GRAY) 24683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 2470faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY || 2471faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2477faa852bad40107edae19405e76a299057668d795glennrp else if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_RGB) 24783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 2480faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB || 2481faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2487faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 24883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 24903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 2491faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY) 24923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 2494faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 2497faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 2500faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 25013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 25033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 25063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 25077a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 25087a287bfadeadea12e47c2376ca78a5d101687142cristy { 25097a287bfadeadea12e47c2376ca78a5d101687142cristy status=SetImageProgress(image,LoadImageTag,y,image->rows); 25107a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 25117a287bfadeadea12e47c2376ca78a5d101687142cristy break; 25127a287bfadeadea12e47c2376ca78a5d101687142cristy } 25133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25167a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 25173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 25193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 25203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 25243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 25253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 25273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 25333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2535faa852bad40107edae19405e76a299057668d795glennrp image->matte=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 25363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2544faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 25453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2554faa852bad40107edae19405e76a299057668d795glennrp switch (ping_bit_depth) 25553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 25573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 25593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-7; x > 0; x-=8) 25623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 25643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= (long) (8-(image->columns % 8)); bit--) 25703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-3; x > 0; x-=4) 25773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 25793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 25823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=3; i >= (long) (4-(image->columns % 4)); i--) 25863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 25913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x > 0; x-=2) 25933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 25983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 25993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2603faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 26083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 26093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 26253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2636faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 26393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 26463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2656faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 266046f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 26663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2667faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 26703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices[x]=(*r++); 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26897a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 26907a287bfadeadea12e47c2376ca78a5d101687142cristy { 26917a287bfadeadea12e47c2376ca78a5d101687142cristy status=SetImageProgress(image,LoadImageTag,y,image->rows); 26927a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 26937a287bfadeadea12e47c2376ca78a5d101687142cristy break; 26947a287bfadeadea12e47c2376ca78a5d101687142cristy } 26953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26967a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 26993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 27003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 27033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2704b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2705b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 27063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 27073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 27083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 27093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 27113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) image_info->first_scene && image->delay != 0) 27123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 27143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 27153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 27163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 27173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2718f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2725faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 27283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2735c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2736e805a647adebb9faefcbd7f9a73ca8e91870614acristy#if 1 /* balfour fix */ 2737c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2738c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2739c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2740c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2741faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2742c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2743faa852bad40107edae19405e76a299057668d795glennrp for (x=0; x < ping_num_trans; x++) 2744c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2745faa852bad40107edae19405e76a299057668d795glennrp image->colormap[x].opacity = ScaleCharToQuantum((unsigned char)(255-ping_trans_alpha[x])); 2746c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2747c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2748faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2749c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 27505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (x=0; x < (int) image->colors; x++) 2751c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2752c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (image->colormap[x].red == transparent_color.opacity) 2753c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2754c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2755c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2756c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2757c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2758d027259799c88ed5e4f12d21a5366031bfef0904cristy (void) SyncImage(image); 2759c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2760c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2761c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2762c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2763c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (y=0; y < (long) image->rows; y++) 2764c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2765c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2766c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2767c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2768c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2769c11cf6a442f3046940608a5743a68cc891deb13eglennrp indices=GetAuthenticIndexQueue(image); 2770c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2771c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (x=(long) image->columns-1; x >= 0; x--) 2772c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2773c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ScaleQuantumToChar(q->red) == transparent_color.red && 2774c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->green) == transparent_color.green && 2775c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->blue) == transparent_color.blue) 2776c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2777c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2778c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2779c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2780c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2781c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2782c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2783c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2784c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2785c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2786c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2787c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2788c11cf6a442f3046940608a5743a68cc891deb13eglennrp 27893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 27903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 27923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 27933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 27943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 27963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 27983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 28003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 28013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2802faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 28033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 28043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket=indices[x]; 2806faa852bad40107edae19405e76a299057668d795glennrp if (indexpacket < ping_num_trans) 28073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 2808faa852bad40107edae19405e76a299057668d795glennrp (255-ping_trans_alpha[(long) indexpacket])); 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2810ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2813faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 28153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket=indices[x]; 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=image->colormap[(long) indexpacket].red; 28183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 28193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 28203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->red == transparent_color.opacity) 28213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2823ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 28293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ScaleQuantumToChar(q->red) == transparent_color.red && 28313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->green) == transparent_color.green && 28323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->blue) == transparent_color.blue) 28333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2835ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2841c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 28453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->depth > 8) 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 28473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) num_text; i++) 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 28623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 28653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 28673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 28693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 28703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 28713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 28743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 28803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 28853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 28923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 289490823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(MngBuffer)); 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 28983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 29033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 29123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 2927faa852bad40107edae19405e76a299057668d795glennrp if (ping_width > 250000L || ping_height > 250000L) 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 2929faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->width=ping_width; 2930faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->height=ping_height; 2931faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->color_type=ping_color_type; 2932faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->sample_depth=ping_bit_depth; 2933faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->interlace_method=ping_interlace_method; 2934faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->compression_method= 2935faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method; 2936faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->filter_method=ping_filter_method; 2937faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 29383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 29403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 29413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 29433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 29443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 29473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 29503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 29513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2967f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 29893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 302690823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 30543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading JNG chunk type %c%c%c%c, length: %lu", 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_width: %16lu",jng_width); 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_width: %16lu",jng_height); 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 33183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 332390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy color_image_info=(ImageInfo *)AcquireAlignedMemory(1,sizeof(ImageInfo)); 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 334390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(ImageInfo)); 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,(unsigned long) length); 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=((float) mng_get_long(p))*0.00001; 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (p[0]+1); 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_get_long(p); 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_get_long(&p[4]); 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) mng_get_long(p); 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) mng_get_long(&p[4]); 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 379190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(*mng_info)); 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 396390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 39663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 39723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 39733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 40043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading MNG chunk type %c%c%c%c, length: %lu", 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG width: %lu",mng_info->mng_width); 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG height: %lu",mng_info->mng_height); 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=(unsigned long) mng_get_long(p); 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=(unsigned long) mng_get_long(p); 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(page_geometry,MaxTextExtent,"%lux%lu+0+0", 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.right=(long) mng_info->mng_width; 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.bottom=(long) mng_info->mng_height; 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=(png_uint_32) mng_get_long(&p[2]); 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 41753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " final_delay=%ld",final_delay); 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->iterations=%ld",image->iterations); 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[object_id]=(long) ((p[4] << 24) | (p[5] << 16) | 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[object_id]=(long) ((p[8] << 24) | (p[9] << 16) | 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 42263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " x_off[%d]: %lu",object_id,mng_info->x_off[object_id]); 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " y_off[%d]: %lu",object_id,mng_info->y_off[object_id]); 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 42903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 42933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) (length/3); i++) 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=length/3; 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 43063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns_length=length; 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma=mng_get_long(p); 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[12]); 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[16]); 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[20]); 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 43673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[24]); 43683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[28]); 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_srgb_intent=(RenderingIntent) (p[0]+1); 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 44243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*p && ((p-chunk) < (long) length)) 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p-chunk) < (long) (length-4)) 44303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=(1UL*image->ticks_per_second* 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_delay=%ld",frame_delay); 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=(1UL*image->ticks_per_second* 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_timeout=%ld",frame_timeout); 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Frame_clipping: L=%ld R=%ld T=%ld B=%ld", 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb.left, fb.right,fb.top,fb.bottom); 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=(unsigned long) (mng_info->clip.right 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=(unsigned long) (mng_info->clip.bottom 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " subframe_width=%lu, subframe_height=%lu", 44893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width, subframe_height); 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 45203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < (long) length; j+=2) 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(long) first_object; i <= (long) last_object; i++) 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long loop_iters=1; 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iters=mng_get_long(&chunk[1]); 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " LOOP level %ld has %ld iterations ",loop_level,loop_iters); 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " ENDL: LOOP level %ld has %ld remaining iterations ", 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level,mng_info->loop_count[loop_level]); 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 47293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(p); 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(&p[4]); 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 48973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width=(unsigned long) mng_get_long(p); 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height=(unsigned long) mng_get_long(&p[4]); 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.right < (long) mng_info->mng_width) || 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.bottom < (long) mng_info->mng_height)) 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted transparent background layer, W=%lud, H=%lud", 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 50953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,-((long) length+12),SEEK_CUR); 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 51503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 51513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-2)*(mng_info->magn_mx); 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=image->columns; 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-3)*(mng_info->magn_mx-1); 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-2)*(mng_info->magn_my); 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=image->rows; 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-3)*(mng_info->magn_my-1); 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 52123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 52653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 52763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 52803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the rows to %lu",large_image->rows); 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-2) 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy <= 1 && y == (long) image->rows-1) 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-1) 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_my; 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y < (long) image->rows-1) 53233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 53253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(yy < (long) large_image->rows); 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: get color as function of indices[x] */ 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) (((long) (2*i*((*n).red 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m))/((long) (m*2)) 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) (((long) (2*i*((*n).green 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green)+m))/((long) (m*2)) 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) (((long) (2*i*((*n).blue 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m))/((long) (m*2)) 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).opacity); 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) (2*i*((*n).opacity 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m))/((long) (m*2)) 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the columns to %lu",image->columns); 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 54333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (image->columns-length); 54343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x < (long) image->columns; x++) 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x == (long) (image->columns-length)) 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_ml; 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-2) 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx <= 1 && x == (long) image->columns-1) 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-1) 54433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mx; 54463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 54493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).red); 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +m)/((long) (m*2))+(*pixels).green); 54663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).blue); 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)/((long) (m*2)) 54723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 54753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 54813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m) /((long) (m*2)) 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 55073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 55083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 55113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 55153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.width=(unsigned long) (crop_box.right-crop_box.left); 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.height=(unsigned long) (crop_box.bottom-crop_box.top); 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 55813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 55823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->background_color.red >> 8) & 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.red & 0xff)) && 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.green >> 8) & 0xff) 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.green & 0xff)) && 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.blue >> 8) & 0xff) 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.blue & 0xff))); 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 56363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (indx=0; indx < (long) image->colors; indx++) 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->colormap[indx].red >> 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].red & 0xff)) && 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].green >> 8) & 0xff) 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].green & 0xff)) && 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].blue >> 8) & 0xff) 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].blue & 0xff))); 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 56543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 56553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->red >> 8) & 0xff) == 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->red & 0xff)) && 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->green >> 8) & 0xff) == 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->green & 0xff)) && 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->blue >> 8) & 0xff) == 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->blue & 0xff)) && 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->opacity >> 8) & 0xff) == 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->opacity & 0xff))))); 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) (image_info->first_scene+image_info->number_scenes)) 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 57383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 57413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 57423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 57713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->delay=%lu, final_delay=%lu",image->delay,final_delay); 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu",image->delay); 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu",++scene,image->delay); 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu dispose=%d",image->delay,(int) image->dispose); 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu dispose=%d",++scene, 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay,(int) image->dispose); 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 590825c1e2baba76d9cf3ec582f217f96af95259e747glennrp#else /* PNG_LIBPNG_VER > 10011 */ 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 592125c1e2baba76d9cf3ec582f217f96af95259e747glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned long RegisterPNGImage(void) 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport unsigned long RegisterPNGImage(void) 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 59573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 59733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 59743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 59753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 606918b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 607018b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 607118b17443128598500357da7bff2f01683cf32890cristy#endif 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 60813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 60883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6103514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 6104514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 610925c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if PNG_LIBPNG_VER > 10011 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 61463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 61803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 61853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 62053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 62133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 62153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("writing raw profile: type=%s, length=%lu\n", 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) profile_type, length); 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_size_t) (dp-text[0].text),"%8lu ",length); 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 62483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 62493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 62533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 62553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 62923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 62933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 63033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 63063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 63133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 63153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6323cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6324cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 63255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_bytep 63265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha; 63275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_color_16 63325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background, 63335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color; 63345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 63363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 63373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 63393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_uint_32 63425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height, 63435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width; 63445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 63493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 63503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 63523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 63533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 63553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 63593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 63603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 63633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 63653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 63663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 63673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp volatile int 63695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth, 63705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type, 63715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method, 63725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method, 63735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method, 63745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans; 63755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 63785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth, 63795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth; 63803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 63823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 63833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 63843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 63853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 63873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 63883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6390f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 63913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 63923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp /* Initialize some stuff */ 63945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=0, 63955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=0, 63965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=0, 63975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method=0, 63985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=0, 63995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans = 0; 64005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.red = 0; 64025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.green = 0; 64035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.blue = 0; 64045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.gray = 0; 64055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index = 0; 64065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=0; 64085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=0; 64095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=0; 64105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=0; 64115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha = NULL; 64135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6414ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 64153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 64163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 64173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 64183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 64203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 64213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 6422057310ded72df25c84f1ad647129a95c1f1753e3cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 64233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 64243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 64273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 64293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 64303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 64313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 64323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 64343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 64353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 64373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 64393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 64403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 64423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 64453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 64463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 64483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 64513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 64533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 64543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 64553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 64573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6458f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 64663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 64673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 64683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 64703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 64713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 64723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 64733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 64755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width=image->columns; 64765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height=image->rows; 64773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 64783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 64793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 64803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 64813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 64823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 64833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 64843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 64853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 64863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 64873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 64883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 64893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " width=%lu",ping_width); 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " height=%lu",ping_height); 64943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_matte=%u",image->matte); 64963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth=%lu",image->depth); 64983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " requested PNG image_depth=%lu",image->depth); 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 65025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=(png_byte) save_image_depth; 65033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 65093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 65113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 65123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 65133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 65153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 65183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 65193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 65213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 65253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 65423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 65493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 65513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 65523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 65653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 65673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 65713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 65905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 65915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 66003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 66013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 66073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 66093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors quantized to %ld",number_colors); 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 662898156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 66293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 66303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 66333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 66353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 663798156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 663898156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 66393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i,palette[i].red,palette[i].green,palette[i].blue); 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 66635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 66645af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp int 66715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[256]; 66725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 66733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 66785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[i]=255; 66793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 66813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 66883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 66903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices[x]=(IndexPacket) (number_colors-1); 66945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[(long) indices[x]]=(png_byte) (255- 6695ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 67035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (trans_alpha[i] != 255) 67045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 67055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 67075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping, ping_info, PNG_INFO_tRNS); 67085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping, ping_info, PNG_INFO_tRNS)) 67095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 67105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 67115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp { 67125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (i=0; i<256; i++) 67135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans_alpha[i]; 67145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp } 67155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, 67175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha, 67185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans, 67195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 67233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 67255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 67263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 67283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 67303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 67343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 67353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) mng_info->write_png_colortype-1; 67505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 67515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 67523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 67595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) ((matte == MagickTrue)? 67603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 67623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 67673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 67773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 67813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 67823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 67833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp "Selected PNG colortype=%d",ping_color_type); 67913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 67933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 67955af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB || 67965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 67975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 67983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 68013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 68053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 68075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 68133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 68155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((int) (1 << ping_bit_depth) < (long) image_colors) 68165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",image_colors); 68223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG bit depth: %d",ping_bit_depth); 68243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 68263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth=ping_bit_depth; 68285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth > 8) 68325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = 8; 68335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth != (int) old_bit_depth) 68343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors increased to %ld",image_colors); 68383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG color type: %d",ping_color_type); 68483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_info->type: %d",image_info->type); 68503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth: %lu",image_depth); 68523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " ping_bit_depth: %d",ping_bit_depth); 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 68573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 68603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 68625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 68633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 68643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 68693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 68713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 68803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 68813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 68823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 68893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 68913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((y == (long) image->rows) && (x == (long) image->columns)) 68963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp No transparent pixels are present. Change 4 or 6 to 0 or 2. 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type&=0x03; 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 69063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 69095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 8) 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 69115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 4) 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 69135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 2) 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 69155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 1) 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 69175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=(png_uint_16) 6918ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 69195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=(png_uint_16) 6920ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 69215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=(png_uint_16) 6922ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 69235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 69255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.index=(png_byte) 692646f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 69275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, NULL, 0, 69285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 69293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 69353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 69373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 69393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 69403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 69413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 69443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p) == 0) 69483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 69513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 69533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p)) 69613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 69623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red&=0xff; 69795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green&=0xff; 69805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue&=0xff; 69815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray&=0xff; 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 69865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 69893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 69903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 69913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 69935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY; 69973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 69985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 69993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 70023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 70033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=1 << image_depth; 70043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 70055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=16; 70063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 70095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 70103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 70123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((int) (1 << ping_bit_depth) 70153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < (long) image_colors) 70165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (mng_info->optimize && ping_color_type == 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 70263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 70273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image_colors; i++) 70313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 70343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 70363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 70403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 70423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 70455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 70475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=2; 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 70495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=4; 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 70563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 70603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 70633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 70653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 70665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 70673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 70683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,NULL,0); 70703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 70713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up empty PLTE chunk"); 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 70773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 70813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 70843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 70853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 708698156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 70873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 70963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 710398156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 710498156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 71063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 71125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((1UL << ping_bit_depth) < number_colors) 71135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 71223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 71263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *packet_indices; 71293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 71323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 71343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 71353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 71373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 71383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_indices=GetVirtualIndexQueue(image); 71433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 71443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 71483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 71493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index=packet_indices[x]; 71513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert((unsigned long) packet_index < number_colors); 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != 256) 71533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != (png_byte) (255- 7155ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 71563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[(long) packet_index]=(png_byte) (255- 7163ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 71683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 71715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_PLTE); 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 71733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 71743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 71763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 71875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 71915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 71925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha=(unsigned char *) AcquireQuantumMemory( 71975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp number_colors,sizeof(*ping_trans_alpha)); 71985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_trans_alpha == (unsigned char *) NULL) 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 72025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans[i]; 72033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 72083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 72105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 72113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 72133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 72193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 72203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red*=0x0101; 72225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green*=0x0101; 72235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue*=0x0101; 72245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 72253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 72303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8 && ping_color_type == 72323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 72333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 72353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 72363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 72393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp maxval=(png_uint_16) ((1 << ping_bit_depth)-1); 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 72443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 72493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 72525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray)); 72533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color type: %d",ping_color_type); 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 72703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 72723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 72733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 72743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 72763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 72773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level=(int) MagickMin((long) quality/10,9); 72793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 72823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 72943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 73025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 73173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || 73205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 73283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 73333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 73353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 73383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 73413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 73423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp#ifdef PNG_WRITE_iCCP_SUPPORTED 73443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 73453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 73463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 73473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 73483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 73633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_set_sRGB(ping,ping_info,(int) (image->rendering_intent-1)); 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) 73763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 73943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 74003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 74043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=image_info->interlace != NoInterlace; 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 74173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 74183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 74243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB; 74275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 74285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 74293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 74323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 74343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 74375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (int) mng_info->write_png_depth != ping_bit_depth) || 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 74395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) mng_info->write_png_colortype-1 != ping_color_type && 7440991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 74415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp !(mng_info->write_png_colortype == 5 && ping_color_type == 0)))) 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 74463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 74505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth); 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 74563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 74575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type); 74583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 74623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 74683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_IHDR(ping,ping_info,ping_width,ping_height, 74765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth,ping_color_type, 74775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method,ping_compression_method, 74785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method); 74795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 74813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 74833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 74843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 74853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 74863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 74883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]; 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 74943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 74963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 74973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 74983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 74993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 75003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping->mode |= PNG_HAVE_IDAT; 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 75073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 75103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 75123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24 || (mng_info->write_png_depth == 8 && 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_RGB)) 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 75193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32 || (mng_info->write_png_depth == 8 && 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_RGB_ALPHA)) 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 75223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((!mng_info->write_png8 || 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY || 75243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA )&& 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image))) 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 2 : 1); 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->IsPalette) 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 4 : 3); 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image)) 75373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 4 : 2); 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 8 : 6); 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocating %lu bytes of memory for pixels",rowbytes); 75443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 75473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 75553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 75583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 75653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7566f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 75673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7570ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7571ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7572ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 75763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 75803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 75843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 75863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 75953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 75963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 75973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 76163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 76385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 76393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 76403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 76813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 76833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 76903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 76953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && 77065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 77073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 77153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 77263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 77283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 77313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 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 } 7742b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7743b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG image data"); 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Width: %lu",ping_width); 77513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Height: %lu",ping_height); 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 77543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG bit-depth written: %d",ping_bit_depth); 77603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 77613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 77643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color-type written: %d",ping_color_type); 77673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG Interlace method: %d",ping_interlace_method); 77693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 77723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 77733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 77743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 77753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 77763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 77793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 77813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 77823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 77863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 77873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 77943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 77963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 78093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 78103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 78113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 78135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_width != mng_info->page.width) || 78145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_height != mng_info->page.height)) 78153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 78183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 78253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 78263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 78273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 78355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.x + ping_width)); 78363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 78385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.y + ping_height)); 78393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 78523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 78553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp s[0]=(char) ping_bit_depth; 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 78583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 78603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 78633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78645af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 78663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 78683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7870f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 78813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 78903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 78973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 79123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 79173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 79203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 79213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 79423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 79453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 79513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 79653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 79713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 79733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 80023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 802390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 80373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 3 */ 4; 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteMatteType); 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 2 */ 3; 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 6 */ 7; 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 1; 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 2; 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 4; 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 16; 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 80933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 1; 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 3; 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 4; 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 5; 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 7; 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 81983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 82063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,image->columns); 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,image->rows); 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG width:%15lu",image->columns); 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG height:%14lu",image->rows); 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) (num_bytes-4L)); 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,(unsigned long) (num_bytes-4L)); 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 83763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 83833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 83903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 83923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 83963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 84313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+4,(long) (image->page.x)); 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+8,(long) (image->page.y)); 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 84753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 84853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write IDAT chunks from blob, length=%lu.", 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=8; i<(long) length; i+=len+12) 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) len); 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,(unsigned long) len); 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping %c%c%c%c chunk, length=%lu.", 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(p),*(p+1),*(p+2),*(p+3),len); 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAA chunk, length=%lu.", 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 85533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Created jpeg_image, %lu x %lu.",jpeg_image->columns, 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->rows); 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAT chunk, length=%lu.", 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 85933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 86253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 86493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 86593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 86653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 867190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 86983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 86993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 87133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 87143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 87173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 87203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 87383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8744d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER < 10200) 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 876790823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 88093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 88203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image_info depth: %ld",image_info->depth); 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Scene: %ld",scene++); 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image depth: %lu",p->depth); 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",p->colors); 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteMatteType); 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteType); 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 89653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=10; 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "input has zero delay between all frames; assuming 10 cs", 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",""); 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second/final_delay; 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,mng_info->page.width); 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,mng_info->page.height); 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_nEED,(unsigned long) length); 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM delay: %lu", 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) (mng_info->ticks_per_second* 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM iterations: %lu",PNG_UINT_31_MAX); 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image iterations: %lu",image->iterations); 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 92893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 92933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 93283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 93813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 94123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 94333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=image->delay; 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 95143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 95153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 95193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 95223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 95233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 95263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9544d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#else /* PNG_LIBPNG_VER > 10011 */ 95453ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 95463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 95483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 95493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 95503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9557d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 95583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9559