png.c revision cee9711bbc334b5677d5ec4ea1cc70340d35ee35
13ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 23ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 33ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 43ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 53ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 63ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PPPP N N GGGG % 73ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P P NN N G % 83ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PPPP N N N G GG % 93ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P N NN G G % 103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P N N GGG % 113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Read/Write Portable Network Graphics Image Format % 143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Software Design % 163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% John Cristy % 173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Glenn Randers-Pehrson % 183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 1997 % 193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2116af1cbdffcc02e7239d432e5fb51734fcf9f9ffcristy% Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % 223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% dedicated to making software imaging solutions freely available. % 233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% You may not use this file except in compliance with the License. You may % 253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% obtain a copy of the License at % 263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% http://www.imagemagick.org/script/license.php % 283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Unless required by applicable law or agreed to in writing, software % 303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% distributed under the License is distributed on an "AS IS" BASIS, % 313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % 323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% See the License for the specific language governing permissions and % 333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% limitations under the License. % 343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Include declarations. 433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/studio.h" 455a2ca481ab4ff6751bba842263739966e53441aacristy#include "magick/attribute.h" 463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/blob.h" 473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/blob-private.h" 483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/cache.h" 493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/color.h" 503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/color-private.h" 514ccd4c0b8623aa47f1c10dd366666799e5957c3ccristy#include "magick/colormap.h" 523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/colorspace.h" 533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/constitute.h" 543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/enhance.h" 553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception.h" 563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception-private.h" 573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/geometry.h" 58f2e1166e90de2dfe2e6a2aed7cd5f73640f34a7acristy#include "magick/histogram.h" 593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image.h" 603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image-private.h" 613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/layer.h" 623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/list.h" 633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/log.h" 643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/magick.h" 653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/memory_.h" 663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/module.h" 673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor.h" 683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor-private.h" 693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/option.h" 703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/profile.h" 723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/property.h" 733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantize.h" 743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/resource_.h" 753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/semaphore.h" 763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/static.h" 783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/statistic.h" 793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/string_.h" 80f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy#include "magick/string-private.h" 813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/transform.h" 823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/utility.h" 833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 84286a6355c4544b794da2b6df973faad07c69e541glennrp 857ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp/* Suppress libpng pedantic warnings that were added in 867ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * libpng-1.2.41 and libpng-1.4.0. If you are working on 87faa852bad40107edae19405e76a299057668d795glennrp * migration to libpng-1.5, remove these defines and then 887ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * fix any code that generates warnings. 897ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp */ 90991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp/* #define PNG_DEPRECATED Use of this function is deprecated */ 91faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_USE_RESULT The result of this function must be checked */ 92faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_NORETURN This function does not return */ 93faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_ALLOCATED The result of the function is new memory */ 94faa852bad40107edae19405e76a299057668d795glennrp/* #define PNG_DEPSTRUCT Access to this struct member is deprecated */ 95286a6355c4544b794da2b6df973faad07c69e541glennrp 963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "png.h" 973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "zlib.h" 983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* ImageMagick differences */ 1003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define first_scene scene 1013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 102d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 1033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Optional declarations. Define or undefine them as you like. 1053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* #define PNG_DEBUG -- turning this on breaks VisualC compiling */ 1073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Features under construction. Define these to work on them. 1103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_OBJECT_BUFFERS 1123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_BASI_SUPPORTED 1133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_COALESCE_LAYERS /* In 5.4.4, this interfered with MMAP'ed files. */ 1143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_INSERT_LAYERS /* Troublesome, but seem to work as of 5.4.4 */ 1153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_BUILD_PALETTE /* This works as of 5.4.3. */ 1163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SORT_PALETTE /* This works as of 5.4.0. */ 1173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_JPEG_DELEGATE) 1183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define JNG_SUPPORTED /* Not finished as of 5.5.2. See "To do" comments. */ 1193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(RGBColorMatchExact) 1213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define IsPNGColorEqual(color,target) \ 1223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((color).red == (target).red) && \ 1233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).green == (target).green) && \ 1243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).blue == (target).blue)) 1253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Establish thread safety. 1293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is claimed to be safe on these platforms: 1303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is alleged to be unsafe on these platforms: 1313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef SETJMP_IS_THREAD_SAFE 1333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SETJMP_NOT_THREAD_SAFE 1343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic SemaphoreInfo 1383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_semaphore = (SemaphoreInfo *) NULL; 1393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This temporary until I set up malloc'ed object attributes array. 1433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Recompile with MNG_MAX_OBJECTS=65536L to avoid this limit but 1443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy waste more memory. 1453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_MAX_OBJECTS 256 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If this not defined, spec is interpreted strictly. If it is 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined, an attempt will be made to recover from some errors, 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy including 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o global PLTE too short 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_LOOSE 1553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Don't try to define PNG_MNG_FEATURES_SUPPORTED here. Make sure 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy it's defined in libpng/pngconf.h, version 1.0.9 or later. It won't work 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy with earlier versions of libpng. From libpng-1.0.3a to libpng-1.0.8, 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_READ|WRITE_EMPTY_PLTE were used but those have been deprecated in 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy libpng in favor of PNG_MNG_FEATURES_SUPPORTED, so we set them here. 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_MNG_FEATURES_SUPPORTED is disabled by default in libpng-1.0.9 and 1633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy will be enabled by default in libpng-1.2.0. 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_MNG_FEATURES_SUPPORTED 1663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 1673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_READ_EMPTY_PLTE_SUPPORTED 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_WRITE_EMPTY_PLTE_SUPPORTED 1703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_WRITE_EMPTY_PLTE_SUPPORTED 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 175bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy Maximum valid size_t in PNG/MNG chunks is (2^31)-1 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This macro is only defined in libpng-1.0.3 and later. 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Previously it was PNG_MAX_UINT but that was deprecated in libpng-1.2.6 1783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_UINT_31_MAX 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_UINT_31_MAX (png_uint_32) 0x7fffffffL 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Constant strings for known chunk types. If you need to add a chunk, 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy add a string holding the name here. To make the code more 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy portable, we use ASCII numbers like this, not characters. 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MHDR[5]={ 77, 72, 68, 82, (png_byte) '\0'}; 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BACK[5]={ 66, 65, 67, 75, (png_byte) '\0'}; 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BASI[5]={ 66, 65, 83, 73, (png_byte) '\0'}; 1923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLIP[5]={ 67, 76, 73, 80, (png_byte) '\0'}; 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLON[5]={ 67, 76, 79, 78, (png_byte) '\0'}; 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DEFI[5]={ 68, 69, 70, 73, (png_byte) '\0'}; 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DHDR[5]={ 68, 72, 68, 82, (png_byte) '\0'}; 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DISC[5]={ 68, 73, 83, 67, (png_byte) '\0'}; 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_ENDL[5]={ 69, 78, 68, 76, (png_byte) '\0'}; 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_FRAM[5]={ 70, 82, 65, 77, (png_byte) '\0'}; 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IEND[5]={ 73, 69, 78, 68, (png_byte) '\0'}; 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IHDR[5]={ 73, 72, 68, 82, (png_byte) '\0'}; 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JHDR[5]={ 74, 72, 68, 82, (png_byte) '\0'}; 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_LOOP[5]={ 76, 79, 79, 80, (png_byte) '\0'}; 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MAGN[5]={ 77, 65, 71, 78, (png_byte) '\0'}; 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MEND[5]={ 77, 69, 78, 68, (png_byte) '\0'}; 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MOVE[5]={ 77, 79, 86, 69, (png_byte) '\0'}; 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PAST[5]={ 80, 65, 83, 84, (png_byte) '\0'}; 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PLTE[5]={ 80, 76, 84, 69, (png_byte) '\0'}; 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SAVE[5]={ 83, 65, 86, 69, (png_byte) '\0'}; 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SEEK[5]={ 83, 69, 69, 75, (png_byte) '\0'}; 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SHOW[5]={ 83, 72, 79, 87, (png_byte) '\0'}; 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_TERM[5]={ 84, 69, 82, 77, (png_byte) '\0'}; 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_bKGD[5]={ 98, 75, 71, 68, (png_byte) '\0'}; 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_cHRM[5]={ 99, 72, 82, 77, (png_byte) '\0'}; 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_gAMA[5]={103, 65, 77, 65, (png_byte) '\0'}; 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_nEED[5]={110, 69, 69, 68, (png_byte) '\0'}; 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYg[5]={112, 72, 89, 103, (png_byte) '\0'}; 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYs[5]={112, 72, 89, 115, (png_byte) '\0'}; 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sBIT[5]={115, 66, 73, 84, (png_byte) '\0'}; 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sRGB[5]={115, 82, 71, 66, (png_byte) '\0'}; 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tRNS[5]={116, 82, 78, 83, (png_byte) '\0'}; 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IDAT[5]={ 73, 68, 65, 84, (png_byte) '\0'}; 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAT[5]={ 74, 68, 65, 84, (png_byte) '\0'}; 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAA[5]={ 74, 68, 65, 65, (png_byte) '\0'}; 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JdAA[5]={ 74, 100, 65, 65, (png_byte) '\0'}; 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JSEP[5]={ 74, 83, 69, 80, (png_byte) '\0'}; 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_oFFs[5]={111, 70, 70, 115, (png_byte) '\0'}; 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristyOther known chunks that are not yet supported by ImageMagick: 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_hIST[5]={104, 73, 83, 84, (png_byte) '\0'}; 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iTXt[5]={105, 84, 88, 116, (png_byte) '\0'}; 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sPLT[5]={115, 80, 76, 84, (png_byte) '\0'}; 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sTER[5]={115, 84, 69, 82, (png_byte) '\0'}; 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tEXt[5]={116, 69, 88, 116, (png_byte) '\0'}; 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tIME[5]={116, 73, 77, 69, (png_byte) '\0'}; 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_zTXt[5]={122, 84, 88, 116, (png_byte) '\0'}; 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBox 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 247bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 256bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile ssize_t 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 265bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height, 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width; 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte[256]; 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reference_count; 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_sample_depth, 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy concrete, 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method, 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen, 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_type, 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixel_sample_depth, 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte_length, 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sample_depth, 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable; 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBuffer; 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngInfo 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBuffer 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ob[MNG_MAX_OBJECTS]; 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image * 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image; 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page; 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy adjoin, 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_in_read_buffer, 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy found_empty_plte, 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_backgrounds, 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_chrms, 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_gammas, 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_palettes, 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_physs, 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_srgbs, 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode, 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_bkgd, 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_chrm, 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_gama, 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_phys, 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_sbit, 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_srgb, 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_saved_bkgd_index, 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_chrm, 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_gama, 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_plte, 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_srgb, 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_fram, 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_framing_mode, 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy saved_bkgd_index; 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors; 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 344bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_found, 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_count[256], 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iteration[256], 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scenes_found, 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_off[MNG_MAX_OBJECTS], 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_off[MNG_MAX_OBJECTS]; 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clip, 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame, 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_box, 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_clip[MNG_MAX_OBJECTS]; 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* These flags could be combined into one byte */ 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exists[MNG_MAX_OBJECTS], 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen[MNG_MAX_OBJECTS], 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_active[256], 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy invisible[MNG_MAX_OBJECTS], 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable[MNG_MAX_OBJECTS]; 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_jump[256]; 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte; 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_8 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_sbit; 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_buffer[8], 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns[256]; 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy float 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_gamma; 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ChromaticityInfo 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_chrm; 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RenderingIntent 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_srgb_intent; 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 390bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy delay, 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte_length, 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns_length, 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_x_pixels_per_unit, 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_y_pixels_per_unit, 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_width, 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_height, 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ticks_per_second; 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IsPalette, 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_phys_unit_type, 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_warning, 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clon_warning, 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dhdr_warning, 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jhdr_warning, 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_warning, 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy past_warning, 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phyg_warning, 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phys_warning, 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sbit_warning, 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy show_warning, 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type, 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng, 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_colortype, 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_depth, 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png8, 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png24, 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png32; 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 422bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width, 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height; 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_depth, 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type, 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method, 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type, 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method, 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red, 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green, 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue, 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha, 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable; 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_global_bkgd; 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngInfo; 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* VER */ 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WritePNGImage(const ImageInfo *,Image *); 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteMNGImage(const ImageInfo *,Image *); 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteJNGImage(const ImageInfo *,Image *); 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 469bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickMax(const ssize_t x,const ssize_t y) 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickMin(const ssize_t x,const ssize_t y) 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 482d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% C o m p r e s s C o l o r m a p T r a n s F i r s t % 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% CompressColormapTransFirst compresses an image colormap removing 4963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% any duplicate and unused color entries and putting the transparent colors 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% first. Returns MagickTrue on success, MagickFalse on error. 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the CompressColormapTransFirst method is: 5003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned int CompressColormapTransFirst(Image *image) 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 5043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 50698156a3a465a004545e39434c63052b955a74d1cglennrp% This function updates image->colors and image->colormap. 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType CompressColormapTransFirst(Image *image) 5103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed, 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k; 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 515bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j, 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors, 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 5203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *colormap; 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 5255c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used; 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 533bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *map, 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *opacity; 5403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *marker, 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency; 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if colormap can be compressed. 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 55198156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55298156a3a465a004545e39434c63052b955a74d1cglennrp " CompressColorMapTransFirst %s (%ld colors)", 55398156a3a465a004545e39434c63052b955a74d1cglennrp image->filename,image->colors); 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class != PseudoClass || image->colors > 256 || 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors < 2) 55698156a3a465a004545e39434c63052b955a74d1cglennrp { 55798156a3a465a004545e39434c63052b955a74d1cglennrp if (image->debug != MagickFalse) 55898156a3a465a004545e39434c63052b955a74d1cglennrp { 55998156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56098156a3a465a004545e39434c63052b955a74d1cglennrp " Could not compress colormap"); 56198156a3a465a004545e39434c63052b955a74d1cglennrp if (image->colors > 256 || image->colors == 0) 56298156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickFalse); 56398156a3a465a004545e39434c63052b955a74d1cglennrp else 56498156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickTrue); 56598156a3a465a004545e39434c63052b955a74d1cglennrp } 56698156a3a465a004545e39434c63052b955a74d1cglennrp } 5673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) AcquireQuantumMemory(image->colors,sizeof(*marker)); 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker == (unsigned char *) NULL) 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) AcquireQuantumMemory(image->colors,sizeof(*opacity)); 5723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity == (IndexPacket *) NULL) 5733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark colors that are present. 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 581bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy number_colors=(ssize_t) image->colors; 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 588bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5935c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetVirtualIndexQueue(image); 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 595bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5975c6f789db7a30bad01ace12b09ad9cd471339e94cristy marker[(int) indexes[x]]=MagickTrue; 5985c6f789db7a30bad01ace12b09ad9cd471339e94cristy opacity[(int) indexes[x]]=GetOpacityPixelComponent(p); 5995c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (indexes[x] > top_used) 6005c6f789db7a30bad01ace12b09ad9cd471339e94cristy top_used=indexes[x]; 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 604bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6065c6f789db7a30bad01ace12b09ad9cd471339e94cristy marker[(int) indexes[x]]=MagickTrue; 6075c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (indexes[x] > top_used) 6085c6f789db7a30bad01ace12b09ad9cd471339e94cristy top_used=indexes[x]; 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark background color, topmost occurrence if more than one. 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=number_colors-1; i; i--) 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsColorEqual(image->colormap+i,&image->background_color)) 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickTrue; 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Unmark duplicates. 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors-1; i++) 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Count colors that still remain. 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickFalse; 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors=0; 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors++; 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity[i] != OpaqueOpacity) 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickTrue; 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!have_transparency || (marker[0] && 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (opacity[0] == (Quantum) TransparentOpacity))) 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && (new_number_colors == number_colors)) 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No duplicate or unused entries, and transparency-swap not needed. 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickFalse; 662bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((ssize_t) top_used >= new_number_colors) 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Compress colormap. 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) AcquireQuantumMemory(image->colors, 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*colormap)); 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (colormap == (PixelPacket *) NULL) 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Eliminate unused colormap entries. 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) AcquireQuantumMemory((size_t) number_colors, 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*map)); 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map == (IndexPacket *) NULL) 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k=0; 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[i]=(IndexPacket) k; 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=(IndexPacket) k; 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k++; 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=0; 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[j]=image->colormap[i]; 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j++; 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Move the first transparent color to palette entry 0. 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < number_colors; i++) 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap; 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap=colormap[0]; 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[0]=colormap[(int) map[i]]; 732bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy colormap[(ssize_t) map[i]]=temp_colormap; 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < number_colors; j++) 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map[j] == 0) 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=map[i]; 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (map[j] == map[i]) 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=0; 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (remap_needed) 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Remap pixels. 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 764bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=GetAuthenticIndexQueue(image); 770bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=(int) pixels[x]; 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels[x]=map[j]; 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < new_number_colors; i++) 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i]=colormap[i]; 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 782bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) new_number_colors; 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) RelinquishMagickMemory(map); 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s G r a y % 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsGrayImage except does not change DirectClass to PseudoClass % 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsGray(Image *image) 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 808bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 820bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 825bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 830bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s M o n o c h r o m e % 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and is more accurate. % 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsMonochrome(Image *image) 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 861bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 872bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((IsGray(image->colormap+i) == MagickFalse) || 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->colormap[i].red != 0) && 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colormap[i].red != (Quantum) QuantumRange))) 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 881bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 886bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 900d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1012d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER > 10011) 1013bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic size_t WriteBlobMSBULong(Image *image,const size_t value) 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 10583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing %c%c%c%c chunk, length: %lu", 1059bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy type[0],type[1],type[2],type[3],(size_t) length); 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1061d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1067d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if PNG_LIBPNG_VER > 10011 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 1181bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy "Expected %lu bytes; found %lu bytes",(size_t) length, 1182bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) check); 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1210bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1283bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy check=(png_size_t) WriteBlob(image,(size_t) length,data); 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1297bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 1306bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) a->colors; i++) 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 1343bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 1345bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 13523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1353bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 13543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 13893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1391bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.left=(ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 1392bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.right=(ssize_t) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 1393bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.top=(ssize_t) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 1394bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy box.bottom=(ssize_t) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 13993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 14093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 14103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 1411bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy Read two ssize_ts from CLON, MOVE or PAST chunk 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1413bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy pair.a=(ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 1414bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy pair.b=(ssize_t) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1423bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic ssize_t mng_get_ssize_t(unsigned char *p) 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1425bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy return((ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 1439faa852bad40107edae19405e76a299057668d795glennrp#if PNG_LIBPNG_VER < 10500 14403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 1441faa852bad40107edae19405e76a299057668d795glennrp#else 1442faa852bad40107edae19405e76a299057668d795glennrp png_longjmp(ping,1); 1443faa852bad40107edae19405e76a299057668d795glennrp#endif 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 1456cc23b9a188db6b1f240825f6d4c52310f5f69765cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING,message); 14573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 14583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 14703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 14713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 14873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1498bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 14993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 15003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 15023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 15033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 15053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 15063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 15083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 15093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 15103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 1529f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy length=(png_uint_32) StringToLong(sp); 15303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 15403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 15443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 1550bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) nibbles; i++) 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 15533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 15553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 15753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 15953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 15963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 15973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1608bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.width=(size_t) ((chunk->data[0] << 24) | 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 1610bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.height=(size_t) ((chunk->data[4] << 24) | 16113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 16153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 16163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 16173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 16193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 16243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 16293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 16353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 16373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 16423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 16453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 16513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 16543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 16553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 16563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 1665faa852bad40107edae19405e76a299057668d795glennrp pass, 1666faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth, 1667faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, 1668faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method, 1669faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method, 1670faa852bad40107edae19405e76a299057668d795glennrp ping_filter_method, 1671faa852bad40107edae19405e76a299057668d795glennrp ping_num_trans; 16723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 16773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 16783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1679faa852bad40107edae19405e76a299057668d795glennrp png_bytep 1680faa852bad40107edae19405e76a299057668d795glennrp ping_trans_alpha; 1681faa852bad40107edae19405e76a299057668d795glennrp 1682faa852bad40107edae19405e76a299057668d795glennrp png_color_16p 1683faa852bad40107edae19405e76a299057668d795glennrp ping_background, 1684faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color; 1685faa852bad40107edae19405e76a299057668d795glennrp 16863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 16913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 16923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 16943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 16953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1696faa852bad40107edae19405e76a299057668d795glennrp png_uint_32 1697faa852bad40107edae19405e76a299057668d795glennrp ping_height, 1698faa852bad40107edae19405e76a299057668d795glennrp ping_width, 1699faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes; 1700faa852bad40107edae19405e76a299057668d795glennrp 17013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 17053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 17063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1707bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 17083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 17145c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 17153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1716bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 17173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1726bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 17273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 17283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 17303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 17313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 17373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 17383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 17393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 17423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 17433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1745f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 17463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 174825c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if (PNG_LIBPNG_VER < 10200) 17493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 17503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 17513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 17523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 175461b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 175561b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 175661b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 175761b4c957269727a0a2526edc2331881da8346100glennrp { 175861b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 175961b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 176061b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 176161b4c957269727a0a2526edc2331881da8346100glennrp } 176261b4c957269727a0a2526edc2331881da8346100glennrp# endif 176361b4c957269727a0a2526edc2331881da8346100glennrp#endif 176461b4c957269727a0a2526edc2331881da8346100glennrp 176561b4c957269727a0a2526edc2331881da8346100glennrp 1766ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 17673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 17683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 17713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 17733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 17743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 17753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 17763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 17773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 17783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 17793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 17813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 1795faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 17963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 18013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1802f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 18033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 18073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 18087b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 18097b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 18107b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 18117b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 18123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 18133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1817faa852bad40107edae19405e76a299057668d795glennrp 18183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 18193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 18203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 18213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 18283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 18423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 18483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1851991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp#if (PNG_LIBPNG_VER < 10400) 1852991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 1853991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 18543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 18553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 18563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 18623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 18633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 18643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1867991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# endif 18683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 1871faa852bad40107edae19405e76a299057668d795glennrp 1872faa852bad40107edae19405e76a299057668d795glennrp png_get_IHDR(ping,ping_info,&ping_width,&ping_height, 1873faa852bad40107edae19405e76a299057668d795glennrp &ping_bit_depth,&ping_color_type, 1874faa852bad40107edae19405e76a299057668d795glennrp &ping_interlace_method,&ping_compression_method, 1875faa852bad40107edae19405e76a299057668d795glennrp &ping_filter_method); 1876faa852bad40107edae19405e76a299057668d795glennrp 1877faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_num_trans, 1878faa852bad40107edae19405e76a299057668d795glennrp &ping_trans_color); 1879faa852bad40107edae19405e76a299057668d795glennrp 1880faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_bKGD(ping, ping_info, &ping_background); 1881faa852bad40107edae19405e76a299057668d795glennrp 1882faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 18833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1884faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 1885faa852bad40107edae19405e76a299057668d795glennrp { 1886faa852bad40107edae19405e76a299057668d795glennrp png_set_packing(ping); 1887faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth = 8; 1888faa852bad40107edae19405e76a299057668d795glennrp } 18893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1890faa852bad40107edae19405e76a299057668d795glennrp 1891faa852bad40107edae19405e76a299057668d795glennrp image->depth=ping_bit_depth; 18923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 1893faa852bad40107edae19405e76a299057668d795glennrp image->interlace=ping_interlace_method != 0 ? PNGInterlace : NoInterlace; 18943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG width: %lu, height: %lu", 1898bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) ping_width, (size_t) 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, 20470881b52ab4fee8427578a694081946c4c4e92b35cristy &unit_type); 20480881b52ab4fee8427578a694081946c4c4e92b35cristy image->x_resolution=(double) x_resolution; 20490881b52ab4fee8427578a694081946c4c4e92b35cristy image->y_resolution=(double) y_resolution; 20503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 20513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 20533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 20543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 20553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG pHYs chunk: xres: %lu, yres: %lu, units: %d.", 2059bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) x_resolution,(size_t) 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; 2220bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.right=(ssize_t) ping_width; 22213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2222bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->image_box.bottom=(ssize_t) 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); 2259bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->colors=(size_t) 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); 2282bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) 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 { 2291bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2294faa852bad40107edae19405e76a299057668d795glennrp scale=(QuantumRange/((1UL << ping_bit_depth)-1)); 22953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 2297bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) 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++; 2310bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((image_info->number_scenes != 0) && (mng_info->scenes_found > (ssize_t) 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 2379bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy depth=(ssize_t) 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 2386bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) 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 { 2407bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) 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)) 2424bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) 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 2443bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) 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) 2455bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (4*image->columns); x != 0; x--) 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2460faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 2461bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (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 { 2509cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2510cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 25117a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 25127a287bfadeadea12e47c2376ca78a5d101687142cristy break; 25137a287bfadeadea12e47c2376ca78a5d101687142cristy } 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25177a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 25183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 25203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 25213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 25253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 25263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 25353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2536faa852bad40107edae19405e76a299057668d795glennrp image->matte=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2542bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2545faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25525c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 25543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2555faa852bad40107edae19405e76a299057668d795glennrp switch (ping_bit_depth) 25563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 25583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2559bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2562bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-7; x > 0; x-=8) 25633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2570bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (bit=7; bit >= (ssize_t) (8-(image->columns % 8)); bit--) 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2577bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-3; x > 0; x-=4) 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 25823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 25833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2586bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=3; i >= (ssize_t) (4-(image->columns % 4)); i--) 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 25883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 25923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2593bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x > 0; x-=2) 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 25993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 26033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2604faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 2605bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 26093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2617bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2623bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 26243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 2626bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 26363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2637faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 2646bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2657faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 26603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 266146f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 26633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 26663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 26673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2668faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 26713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2686bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 268780ac8b9110f1adf7202ed1f4f244cbb1a4e1a56fcristy indexes[x]=(IndexPacket) (*r++); 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 26893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26907a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 26917a287bfadeadea12e47c2376ca78a5d101687142cristy { 2692cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 2693cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy image->rows); 26947a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 26957a287bfadeadea12e47c2376ca78a5d101687142cristy break; 26967a287bfadeadea12e47c2376ca78a5d101687142cristy } 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26987a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 26993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 27013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 27023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 27053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2706b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2707b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 27085c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (image->storage_class == PseudoClass) 27095c6f789db7a30bad01ace12b09ad9cd471339e94cristy { 2710aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy MagickBooleanType 27115c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte; 27125c6f789db7a30bad01ace12b09ad9cd471339e94cristy 27135c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte=image->matte; 27145c6f789db7a30bad01ace12b09ad9cd471339e94cristy image->matte=MagickFalse; 27155c6f789db7a30bad01ace12b09ad9cd471339e94cristy (void) SyncImage(image); 2716aeb2cbc4eb61cc6a04744db1dc52f5319c466e29cristy image->matte=matte; 27175c6f789db7a30bad01ace12b09ad9cd471339e94cristy } 27183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 2721bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) image_info->first_scene && image->delay != 0) 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 27253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2728f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2735faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 27363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 27383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 27393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 27423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 27443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2745c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2746e805a647adebb9faefcbd7f9a73ca8e91870614acristy#if 1 /* balfour fix */ 2747c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2748c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2749c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2750c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2751faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2752c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2753faa852bad40107edae19405e76a299057668d795glennrp for (x=0; x < ping_num_trans; x++) 2754c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2755faa852bad40107edae19405e76a299057668d795glennrp image->colormap[x].opacity = ScaleCharToQuantum((unsigned char)(255-ping_trans_alpha[x])); 2756c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2757c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2758faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2759c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 27605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (x=0; x < (int) image->colors; x++) 2761c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2762c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (image->colormap[x].red == transparent_color.opacity) 2763c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2764c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2765c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2766c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2767c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2768d027259799c88ed5e4f12d21a5366031bfef0904cristy (void) SyncImage(image); 2769c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2770c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2771c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2772c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2773bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 2774c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2775c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2776c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2777c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2778c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 27795c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 2780c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2781bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 2782c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2783c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ScaleQuantumToChar(q->red) == transparent_color.red && 2784c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->green) == transparent_color.green && 2785c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->blue) == transparent_color.blue) 2786c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2787c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2788c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2789c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2790c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2791c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2792c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2793c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2794c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2795c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2796c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2797c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2798c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2799bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 28003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 28023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 28033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 28043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28055c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 28063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 28083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 28103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 28113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2812faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2813bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28155c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2816faa852bad40107edae19405e76a299057668d795glennrp if (indexpacket < ping_num_trans) 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 2818bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (255-ping_trans_alpha[(ssize_t) indexpacket])); 28193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2820ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2823faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2824bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 28253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28265c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2827bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy q->red=image->colormap[(ssize_t) indexpacket].red; 28283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 28293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->red == transparent_color.opacity) 28313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2833ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2838bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ScaleQuantumToChar(q->red) == transparent_color.red && 28413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->green) == transparent_color.green && 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->blue) == transparent_color.blue) 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2845ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2851c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->depth > 8) 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 2859bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) num_text; i++) 28603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 28623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 28673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 28713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 28743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 28803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 28853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 290490823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(MngBuffer)); 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 29063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 29123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 29293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 29303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 29363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 2937faa852bad40107edae19405e76a299057668d795glennrp if (ping_width > 250000L || ping_height > 250000L) 29383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 2939faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->width=ping_width; 2940faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->height=ping_height; 2941faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->color_type=ping_color_type; 2942faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->sample_depth=ping_bit_depth; 2943faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->interlace_method=ping_interlace_method; 2944faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->compression_method= 2945faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method; 2946faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->filter_method=ping_filter_method; 2947faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 29503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 29513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 29543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2977f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 29893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 303690823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 30543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3139bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3162bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3178bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading JNG chunk type %c%c%c%c, length: %lu", 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 3254bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3271bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 3273bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy jng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3288bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " jng_width: %16lu",(size_t) jng_width); 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3290bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " jng_width: %16lu",(size_t) jng_height); 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 333390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy color_image_info=(ImageInfo *)AcquireAlignedMemory(1,sizeof(ImageInfo)); 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 335390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(ImageInfo)); 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3430bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(alpha_image,(size_t) length); 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 34773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 3491bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->gamma=((float) mng_get_ssize_t(p))*0.00001; 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3500bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.white_point.x=0.00001*mng_get_ssize_t(p); 3501bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.white_point.y=0.00001*mng_get_ssize_t(&p[4]); 3502bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.red_primary.x=0.00001*mng_get_ssize_t(&p[8]); 3503bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.red_primary.y=0.00001*mng_get_ssize_t(&p[12]); 3504bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.green_primary.x=0.00001*mng_get_ssize_t(&p[16]); 3505bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.green_primary.y=0.00001*mng_get_ssize_t(&p[20]); 3506bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.blue_primary.x=0.00001*mng_get_ssize_t(&p[24]); 3507bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->chromaticity.blue_primary.y=0.00001*mng_get_ssize_t(&p[28]); 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (p[0]+1); 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3536bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.x=mng_get_ssize_t(p); 3537bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->page.y=mng_get_ssize_t(&p[4]); 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3553bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->x_resolution=(double) mng_get_ssize_t(p); 3554bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->y_resolution=(double) mng_get_ssize_t(&p[4]); 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 36133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 3632bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 3665bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 3671bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 3674bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns; x != 0; x--,q++,s++) 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 37883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 380190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(*mng_info)); 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3859bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile ssize_t 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3884bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3890bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3907bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3916bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 39633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 39663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 39723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 397390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4002bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; 4003bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; 40043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading MNG chunk type %c%c%c%c, length: %lu", 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 4063bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4102bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 4104bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->mng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG width: %lu",mng_info->mng_width); 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG height: %lu",mng_info->mng_height); 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 4114bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->ticks_per_second=(size_t) mng_get_ssize_t(p); 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 4125bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy simplicity=(size_t) mng_get_ssize_t(p); 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(page_geometry,MaxTextExtent,"%lux%lu+0+0", 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 4154bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.right=(ssize_t) mng_info->mng_width; 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 4156bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->frame.bottom=(ssize_t) mng_info->mng_height; 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4174bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy final_delay=(png_uint_32) mng_get_ssize_t(&p[2]); 4175bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_iterations=(png_uint_32) mng_get_ssize_t(&p[6]); 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " final_delay=%ld",final_delay); 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->iterations=%ld",image->iterations); 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 42263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4232bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->x_off[object_id]=(ssize_t) ((p[4] << 24) | (p[5] << 16) | 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 4234bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->y_off[object_id]=(ssize_t) ((p[8] << 24) | (p[9] << 16) | 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " x_off[%d]: %lu",object_id,mng_info->x_off[object_id]); 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " y_off[%d]: %lu",object_id,mng_info->y_off[object_id]); 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 42723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 42743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 4304bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) (length/3); i++) 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=length/3; 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 4332bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns_length=length; 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4347bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4350bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy igamma=mng_get_ssize_t(p); 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4367bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->global_chrm.white_point.x=0.00001*mng_get_ssize_t(p); 4368bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->global_chrm.white_point.y=0.00001*mng_get_ssize_t(&p[4]); 4369bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_ssize_t(&p[8]); 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 4371bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_get_ssize_t(&p[12]); 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 4373bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_get_ssize_t(&p[16]); 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 4375bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_get_ssize_t(&p[20]); 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 4377bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_get_ssize_t(&p[24]); 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 4379bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy mng_get_ssize_t(&p[28]); 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_srgb_intent=(RenderingIntent) (p[0]+1); 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 44243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 44303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 4436bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy while (*p && ((p-chunk) < (ssize_t) length)) 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 4439bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((p-chunk) < (ssize_t) (length-4)) 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=(1UL*image->ticks_per_second* 4453bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_get_ssize_t(p))/mng_info->ticks_per_second); 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_delay=%ld",frame_delay); 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=(1UL*image->ticks_per_second* 4464bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_get_ssize_t(p))/mng_info->ticks_per_second); 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_timeout=%ld",frame_timeout); 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Frame_clipping: L=%ld R=%ld T=%ld B=%ld", 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb.left, fb.right,fb.top,fb.bottom); 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 4488bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_width=(size_t) (mng_info->clip.right 44893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 4490bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy subframe_height=(size_t) (mng_info->clip.bottom 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " subframe_width=%lu, subframe_height=%lu", 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width, subframe_height); 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 45603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4599bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4602bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (j=0; j < (ssize_t) length; j+=2) 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4614bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 4623bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=(ssize_t) first_object; i <= (ssize_t) last_object; i++) 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4646bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t loop_iters=1; 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 4652bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy loop_iters=mng_get_ssize_t(&chunk[1]); 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " LOOP level %ld has %ld iterations ",loop_level,loop_iters); 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " ENDL: LOOP level %ld has %ld remaining iterations ", 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level,mng_info->loop_count[loop_level]); 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 4872bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) mng_get_ssize_t(p); 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 4874bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) mng_get_ssize_t(&p[4]); 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 4897bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_width=(size_t) ((p[0] << 24) | (p[1] << 16) | 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 4899bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy basi_height=(size_t) ((p[4] << 24) | (p[5] << 16) | 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 4963bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image_width=(size_t) mng_get_ssize_t(p); 4964bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image_height=(size_t) mng_get_ssize_t(&p[4]); 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 4977bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.right < (ssize_t) mng_info->mng_width) || 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 4979bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (mng_info->clip.bottom < (ssize_t) mng_info->mng_height)) 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted transparent background layer, W=%lud, H=%lud", 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 5116bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy offset=SeekBlob(image,-((ssize_t) length+12),SEEK_CUR); 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 51313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-2)*(mng_info->magn_mx); 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=image->columns; 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-3)*(mng_info->magn_mx-1); 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-2)*(mng_info->magn_my); 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=image->rows; 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-3)*(mng_info->magn_my-1); 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5212bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5216bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5261bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 5265bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 52803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the rows to %lu",large_image->rows); 5302bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 53053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 5317bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 5320bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mt; 5321bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-2) 5322bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5323bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy <= 1 && y == (ssize_t) image->rows-1) 5324bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mb; 5325bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methy > 1 && y == (ssize_t) image->rows-1) 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5328bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_my; 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 5332bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (y < (ssize_t) image->rows-1) 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5343bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert(yy < (ssize_t) large_image->rows); 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 5349bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53515c6f789db7a30bad01ace12b09ad9cd471339e94cristy /* TO DO: get color as function of indexes[x] */ 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 5369bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).red=(QM) (((ssize_t) (2*i*((*n).red 5370bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).red)+m))/((ssize_t) (m*2)) 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 5372bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).green=(QM) (((ssize_t) (2*i*((*n).green 5373bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).green)+m))/((ssize_t) (m*2)) 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 5375bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).blue=(QM) (((ssize_t) (2*i*((*n).blue 5376bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).blue)+m))/((ssize_t) (m*2)) 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 5379bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 5382bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).opacity); 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5402bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (*q).opacity=(QM) (((ssize_t) (2*i*((*n).opacity 5403bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m))/((ssize_t) (m*2)) 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the columns to %lu",image->columns); 54343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5435bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 5443bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (image->columns-length); 5444bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy x < (ssize_t) image->columns; x++) 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5446bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (x == (ssize_t) (image->columns-length)) 5447bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_ml; 5448bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-2) 5449bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5450bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx <= 1 && x == (ssize_t) image->columns-1) 5451bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mr; 5452bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy else if (magn_methx > 1 && x == (ssize_t) image->columns-1) 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 5455bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy m=(ssize_t) mng_info->magn_mx; 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 54663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 5472bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).red); 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 5475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy +m)/((ssize_t) (m*2))+(*pixels).green); 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 5478bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy /((ssize_t) (m*2))+(*pixels).blue); 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5481bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m)/((ssize_t) (m*2)) 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 5504bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy -(*pixels).opacity)+m) /((ssize_t) (m*2)) 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 55113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5522bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 5525bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 5581bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.width=(size_t) (crop_box.right-crop_box.left); 5582bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy crop_info.height=(size_t) (crop_box.bottom-crop_box.top); 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5636bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->background_color.red >> 8) & 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 5638bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.red & 0xff)) && 5639bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.green >> 8) & 0xff) 5640bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.green & 0xff)) && 5641bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->background_color.blue >> 8) & 0xff) 5642bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->background_color.blue & 0xff))); 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5647bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (indx=0; indx < (ssize_t) image->colors; indx++) 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5649bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ok_to_reduce=(((((size_t) image->colormap[indx].red >> 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 5651bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].red & 0xff)) && 5652bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].green >> 8) & 0xff) 5653bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].green & 0xff)) && 5654bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) image->colormap[indx].blue >> 8) & 0xff) 5655bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy == ((size_t) image->colormap[indx].blue & 0xff))); 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5663bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5666bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5669bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5674bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 5677bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->red >> 8) & 0xff) == 5678bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->red & 0xff)) && 5679bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->green >> 8) & 0xff) == 5680bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->green & 0xff)) && 5681bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((((size_t) p->blue >> 8) & 0xff) == 5682bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->blue & 0xff)) && 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 5684bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (((size_t) p->opacity >> 8) & 0xff) == 5685bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ((size_t) p->opacity & 0xff))))); 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 5707bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (ssize_t) (image_info->first_scene+image_info->number_scenes)) 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 57133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 57383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 57413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 57863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->delay=%lu, final_delay=%lu",image->delay,final_delay); 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu",image->delay); 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu",++scene,image->delay); 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5853bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu dispose=%d",image->delay,(int) image->dispose); 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu dispose=%d",++scene, 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay,(int) image->dispose); 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 591825c1e2baba76d9cf3ec582f217f96af95259e747glennrp#else /* PNG_LIBPNG_VER > 10011 */ 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 593125c1e2baba76d9cf3ec582f217f96af95259e747glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5954bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% size_t RegisterPNGImage(void) 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5957bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristyModuleExport size_t RegisterPNGImage(void) 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 59733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 607918b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 608018b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 608118b17443128598500357da7bff2f01683cf32890cristy#endif 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6113514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 6114514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 611925c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if PNG_LIBPNG_VER > 10011 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 61793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 61853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6205bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 62133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 62153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("writing raw profile: type=%s, length=%lu\n", 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) profile_type, length); 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 6247bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (png_size_t) (dp-text[0].text),"%8lu ",(size_t) length); 62483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 6249bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) length; i++) 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 62553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 62713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 62923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 62933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 63033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 63063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 63133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 63153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 63233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 63243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 63253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 63313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 63323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6333cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6334cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 63355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_bytep 63365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha; 63375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 63393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_color_16 63425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background, 63435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color; 63445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 63493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 63503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_uint_32 63525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height, 63535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width; 63545af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6355bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 63593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 63603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 63623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 63633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 63655c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 63663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6367bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 63683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 63693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 63703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 63733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 63753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp volatile int 63795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth, 63805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type, 63815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method, 63825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method, 63835af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method, 63845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans; 63855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6386bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 63873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 63885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth, 63895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth; 63903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6391bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 63923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 63933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 63943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 63953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 63973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 63983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6400f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 64013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp /* Initialize some stuff */ 64045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=0, 64055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=0, 64065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=0, 64075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method=0, 64085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=0, 64095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans = 0; 64105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.red = 0; 64125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.green = 0; 64135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.blue = 0; 64145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.gray = 0; 64155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index = 0; 64165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=0; 64185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=0; 64195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=0; 64205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=0; 64215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha = NULL; 64235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6424ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 64253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 64263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 64273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 64283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 64303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 64313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 6432057310ded72df25c84f1ad647129a95c1f1753e3cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 64333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 64343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 64373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 64393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 64403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 64413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 64423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 64443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 64453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 64473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 64493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 64503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 64523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 64553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 64583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 64653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 64673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6468f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 64693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 64713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 64743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 64763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 64773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 64783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 64803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 64813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 64823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 64833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 64855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width=image->columns; 64865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height=image->rows; 64873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 64883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 64893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 64913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 64933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 64943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 64963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 64983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 64993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6501bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " width=%lu",(size_t) ping_width); 65023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6503bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " height=%lu",(size_t) ping_height); 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_matte=%u",image->matte); 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth=%lu",image->depth); 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " requested PNG image_depth=%lu",image->depth); 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 65125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=(png_byte) save_image_depth; 65133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 65143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 65153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 65163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 65183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 65193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 65213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 65223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 65233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 65253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 65493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 65503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 65523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 65533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6565bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 65673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 65693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 65713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 65763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 66015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 66073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6609bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 66193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors quantized to %ld",number_colors); 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 66303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 66353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 66373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 663898156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 66393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 664798156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 664898156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 6649bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i,palette[i].red,palette[i].green,palette[i].blue); 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 66735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 66745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 66783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 66793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp int 66815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[256]; 66825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 6687bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 66885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[i]=255; 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 6690bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 66973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 66985c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 6699bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67035c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes[x]=(IndexPacket) (number_colors-1); 6704bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans_alpha[(ssize_t) indexes[x]]=(png_byte) (255- 6705ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 67063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 67083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6712bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 67135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (trans_alpha[i] != 255) 67145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 67155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 67175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping, ping_info, PNG_INFO_tRNS); 67185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping, ping_info, PNG_INFO_tRNS)) 67195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 67205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 67215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp { 67225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (i=0; i<256; i++) 67235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans_alpha[i]; 67245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp } 67255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, 67275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha, 67285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans, 67295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 67303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 67333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6734bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 67355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 67453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67475af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 67503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) mng_info->write_png_colortype-1; 67605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 67615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 67623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 67695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) ((matte == MagickTrue)? 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67735af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 67773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 67823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 67833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 67843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 67873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 67903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 67913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 67923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 67933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 67953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp "Selected PNG colortype=%d",ping_color_type); 68013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 68055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB || 68065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 68075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 68083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 68133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 68153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 68175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 68233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 6825bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy while ((int) (1 << ping_bit_depth) < (ssize_t) image_colors) 68265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 68273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",image_colors); 68323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG bit depth: %d",ping_bit_depth); 68343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth=ping_bit_depth; 68385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth > 8) 68425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = 8; 68435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth != (int) old_bit_depth) 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors increased to %ld",image_colors); 68483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68535af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG color type: %d",ping_color_type); 68583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_info->type: %d",image_info->type); 68603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth: %lu",image_depth); 68623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " ping_bit_depth: %d",ping_bit_depth); 68643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 68693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 68703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 68725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 6873bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6878bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 68813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 68863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 68903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6891bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6896bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6905bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if ((y == (ssize_t) image->rows) && (x == (ssize_t) image->columns)) 69063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp No transparent pixels are present. Change 4 or 6 to 0 or 2. 69093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type&=0x03; 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 69195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 8) 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 69215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 4) 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 69235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 2) 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 69255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 1) 69263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 69275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=(png_uint_16) 6928ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 69295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=(png_uint_16) 6930ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 69315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=(png_uint_16) 6932ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 69335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 69355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.index=(png_byte) 693646f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 69375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, NULL, 0, 69385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 69393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 69443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 69453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6946bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 69473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 69513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6953bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) image->columns-1; x >= 0; x--) 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p) == 0) 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 69603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 69613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 69653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p)) 69713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 69733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 69743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69835af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 69863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red&=0xff; 69895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green&=0xff; 69905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue&=0xff; 69915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray&=0xff; 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 69965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 69993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 70035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 70043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY; 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 70085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 70123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=1 << image_depth; 70143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 70155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=16; 70163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 70195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((int) (1 << ping_bit_depth) 7025bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy < (ssize_t) image_colors) 70265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 70273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (mng_info->optimize && ping_color_type == 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 70313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 70323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 70363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 70373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7040bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image_colors; i++) 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 70463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 70493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 70513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 70555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 70575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=2; 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 70595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=4; 70603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 70633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 70663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7067bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 706817a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 706917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 707017a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 707117a1485544c62993fc7a94e343c87fed5f3e6407glennrp 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 70775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,NULL,0); 70813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 70823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up empty PLTE chunk"); 70843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 7088bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 70893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 70963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 709798156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 71023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 71043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 7106bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 711498156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 711598156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 71235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((1UL << ping_bit_depth) < number_colors) 71245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 71303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 71343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 71373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 71395c6f789db7a30bad01ace12b09ad9cd471339e94cristy *packet_indexes; 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 71433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 7145bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 71473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7148bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 71493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 71513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71535c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_indexes=GetVirtualIndexQueue(image); 7154bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 71553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 71603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71615c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_index=packet_indexes[x]; 7162bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy assert((size_t) packet_index < number_colors); 7163bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != 256) 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7165bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy if (trans[(ssize_t) packet_index] != (png_byte) (255- 7166ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) 71693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7173bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy trans[(ssize_t) packet_index]=(png_byte) (255- 7174ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 71753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 71825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_PLTE); 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 71873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7193bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 71943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 71973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 71985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 72025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 72035af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 72045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 72055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha=(unsigned char *) AcquireQuantumMemory( 72085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp number_colors,sizeof(*ping_trans_alpha)); 72095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_trans_alpha == (unsigned char *) NULL) 72103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 72113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 7212bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) number_colors; i++) 72135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans[i]; 72143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 72243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red*=0x0101; 72265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green*=0x0101; 72275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue*=0x0101; 72285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8 && ping_color_type == 72363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 72373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 72393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 72403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 72423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp maxval=(png_uint_16) ((1 << ping_bit_depth)-1); 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 72493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 72533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 72565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray)); 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 725817a1485544c62993fc7a94e343c87fed5f3e6407glennrp 725917a1485544c62993fc7a94e343c87fed5f3e6407glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 726017a1485544c62993fc7a94e343c87fed5f3e6407glennrp { 726117a1485544c62993fc7a94e343c87fed5f3e6407glennrp /* 726217a1485544c62993fc7a94e343c87fed5f3e6407glennrp Identify which colormap entry is the background color. 726317a1485544c62993fc7a94e343c87fed5f3e6407glennrp */ 726417a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7265bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 726617a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors; 726717a1485544c62993fc7a94e343c87fed5f3e6407glennrp 726817a1485544c62993fc7a94e343c87fed5f3e6407glennrp number_colors=image_colors; 726917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 7270bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) 727117a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 727217a1485544c62993fc7a94e343c87fed5f3e6407glennrp break; 727317a1485544c62993fc7a94e343c87fed5f3e6407glennrp 727417a1485544c62993fc7a94e343c87fed5f3e6407glennrp ping_background.index=(png_byte) i; 727517a1485544c62993fc7a94e343c87fed5f3e6407glennrp 727617a1485544c62993fc7a94e343c87fed5f3e6407glennrp if (logging) 727717a1485544c62993fc7a94e343c87fed5f3e6407glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 727817a1485544c62993fc7a94e343c87fed5f3e6407glennrp " Setting up bKGD chunk with index=%d",(int) i); 727917a1485544c62993fc7a94e343c87fed5f3e6407glennrp 728017a1485544c62993fc7a94e343c87fed5f3e6407glennrp png_set_bKGD(ping,ping_info,&ping_background); 728117a1485544c62993fc7a94e343c87fed5f3e6407glennrp } 728217a1485544c62993fc7a94e343c87fed5f3e6407glennrp 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color type: %d",ping_color_type); 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 72923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 73013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 73023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7307bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy level=(int) MagickMin((ssize_t) quality/10,9); 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 73193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 73243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 73273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 73315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 73323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 73373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 73413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 73433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 73463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 73473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || 73495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73725af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp#ifdef PNG_WRITE_iCCP_SUPPORTED 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 73753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 73763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 73933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 73943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_set_sRGB(ping,ping_info,(int) (image->rendering_intent-1)); 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 74083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 74173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 74193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 74263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 74273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 74283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 74293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 74303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 74323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 74333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 74343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 74413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=image_info->interlace != NoInterlace; 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 74463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB; 74565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 74575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 74583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 74665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (int) mng_info->write_png_depth != ping_bit_depth) || 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 74685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) mng_info->write_png_colortype-1 != ping_color_type && 7469991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 74705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp !(mng_info->write_png_colortype == 5 && ping_color_type == 0)))) 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 74753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 74795af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth); 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 74853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 74865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type); 74873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 74943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 74963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 74973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 7498b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging != MagickFalse) 7499b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7500b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Added an opaque matte channel"); 75013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_IHDR(ping,ping_info,ping_width,ping_height, 75085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth,ping_color_type, 75095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method,ping_compression_method, 75105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method); 75115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 75123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 75223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]; 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 75353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 75373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping->mode |= PNG_HAVE_IDAT; 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 75393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 75443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 7546b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (image_depth > 8) 7547b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 75487202c101b42be63076be56386f79429bb2f39784cristy switch (ping_color_type) 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7550b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGB: 75513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 7552b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7553b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_GRAY_ALPHA: 7554b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 7555b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7556b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGBA: 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 7558b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7559b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp default: 7560b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7562b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging) 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7564b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7565b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing PNG image data"); 7566b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7567b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Allocating %lu bytes of memory for pixels",rowbytes); 75683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 75723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75765af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 75803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 75843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 75863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7591f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7595ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7596ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7597ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 76113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 76153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7616bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 7630bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 76333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 7641bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->columns; i++) 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 76433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 7644b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7645b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7646b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (1)"); 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 76665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7669bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 7682b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7683b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7684b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY PNG pixels (2)"); 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7688b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7689b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7690b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (2)"); 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7694b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7695b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7696b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (2)"); 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 7712bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 77183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 77203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 77223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7727b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 7728b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7729b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7730b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7731b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7732b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (3)"); 7733b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 77343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 77353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 77373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 7740b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7741b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7742b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (3)"); 77433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && 77515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 77563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7759bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 77603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 77643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 77683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7771b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 777207cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7773b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7774b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (4)"); 7775b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7776b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7777b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 778107cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7782b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7783b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (4)"); 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7795b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7796b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 77973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7801b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Wrote PNG image data"); 78023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7803bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " Width: %lu",(size_t) ping_width); 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7805bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " Height: %lu",(size_t) ping_height); 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 78103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG bit-depth written: %d",ping_bit_depth); 78133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 78143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color-type written: %d",ping_color_type); 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG Interlace method: %d",ping_interlace_method); 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 78253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 78273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 78353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 78383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 78393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 78523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 78583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 78623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 78633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 78643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 78665af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_width != mng_info->page.width) || 78675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_height != mng_info->page.height)) 78683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 78803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 78813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 78873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 78885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.x + ping_width)); 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 78903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 78915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.y + ping_height)); 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 79063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp s[0]=(char) ping_bit_depth; 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 79213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7923f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 79453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 79523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 79653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 79663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 79713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 79733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 80083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 80373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 80583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 807690823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 80933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 3 */ 4; 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteMatteType); 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 2 */ 3; 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 6 */ 7; 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 1; 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 2; 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 4; 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 16; 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 1; 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 3; 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 4; 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 5; 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 7; 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 81983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8206bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 8316bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) length); 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,image->columns); 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,image->rows); 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG width:%15lu",image->columns); 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG height:%14lu",image->rows); 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 83763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8383bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 8390bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) (num_bytes-4L)); 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 8392bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_bKGD,(size_t) (num_bytes-4L)); 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 83963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 8431bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) (100000*image->gamma+0.5)); 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 8448bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) (100000*primary.x+0.5)); 8449bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) (100000*primary.y+0.5)); 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 8451bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+12,(size_t) (100000*primary.x+0.5)); 8452bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+16,(size_t) (100000*primary.y+0.5)); 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 8454bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+20,(size_t) (100000*primary.x+0.5)); 8455bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+24,(size_t) (100000*primary.y+0.5)); 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 8457bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+28,(size_t) (100000*primary.x+0.5)); 8458bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+32,(size_t) (100000*primary.y+0.5)); 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8473bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 8475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8483bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 8485bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8491bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) (image->x_resolution+0.5)); 8492bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) (image->y_resolution+0.5)); 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 8508bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+4,(ssize_t) (image->page.x)); 8509bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGsLong(chunk+8,(ssize_t) (image->page.y)); 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8531bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8534bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write IDAT chunks from blob, length=%lu.", 8541bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) length); 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 8546bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=8; i<(ssize_t) length; i+=len+12) 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 8553bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) len); 8554bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_IDAT,(size_t) len); 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping %c%c%c%c chunk, length=%lu.", 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(p),*(p+1),*(p+2),*(p+3),len); 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAA chunk, length=%lu.", 8575bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) length); 8576bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 85933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Created jpeg_image, %lu x %lu.",jpeg_image->columns, 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->rows); 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 86253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 86263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 8630bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) length); 86313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAT chunk, length=%lu.", 8634bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) length); 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 8637bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 86993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 87133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 87143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 87173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 872490823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 87373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 87383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8780bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8790bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy volatile size_t 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8793bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8797d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER < 10200) 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 88093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 882090823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image_info depth: %ld",image_info->depth); 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Scene: %ld",scene++); 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image depth: %lu",p->depth); 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",p->colors); 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteMatteType); 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteType); 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=10; 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "input has zero delay between all frames; assuming 10 cs", 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",""); 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second/final_delay; 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,mng_info->page.width); 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,mng_info->page.height); 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 9205bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (void) WriteBlobMSBULong(image,(size_t) length); 9206bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy LogPNGChunk((int) logging,mng_nEED,(size_t) length); 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM delay: %lu", 9233bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy (size_t) (mng_info->ticks_per_second* 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9237bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy " TERM iterations: %lu",(size_t) PNG_UINT_31_MAX); 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image iterations: %lu",image->iterations); 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 9275bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) (100000*image->gamma+0.5)); 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 92893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 9292bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) (100000*primary.x+0.5)); 9293bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) (100000*primary.y+0.5)); 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 9295bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+12,(size_t) (100000*primary.x+0.5)); 9296bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+16,(size_t) (100000*primary.y+0.5)); 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 9298bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+20,(size_t) (100000*primary.x+0.5)); 9299bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+24,(size_t) (100000*primary.y+0.5)); 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 9301bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+28,(size_t) (100000*primary.x+0.5)); 9302bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+32,(size_t) (100000*primary.y+0.5)); 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9318bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 9320bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9328bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 9330bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9336bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+4,(size_t) (image->x_resolution+0.5)); 9337bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy PNGLong(chunk+8,(size_t) (image->y_resolution+0.5)); 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9380bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 93813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9390bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 9433bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy size_t 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 9440bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9458bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 94983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 95063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 95083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 95193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 95203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 95223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 95233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 95263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=image->delay; 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 95403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 95453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 95463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 95483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 95493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 95503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 95573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 95583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 95653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 95673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 95683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 95703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 95713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 95723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 95753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 95763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 95783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 95793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 95813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 95833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 95843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 95853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 95863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 95873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 95903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 95953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 95963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9597d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#else /* PNG_LIBPNG_VER > 10011 */ 95983ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 95993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 96003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 96013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 96023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 96033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 96043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 96053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 96063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 96073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 96083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 96093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9610d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 96113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9612