png.c revision 5c6f789db7a30bad01ace12b09ad9cd471339e94
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/* 1753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Maximum valid unsigned long 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{ 2473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 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 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 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 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 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 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 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 4693ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMax(const long x,const long y) 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4753ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMin(const long x,const long 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 5153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 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 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 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 */ 5813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=(long) image->colors; 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) 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) 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) 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 6043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) 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; 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((long) 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]]; 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[(long) 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); 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) 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); 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) 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); 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) 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 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 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 { 8203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) 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 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 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 { 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) 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 } 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) 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) 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic size_t WriteBlobMSBULong(Image *image,const unsigned long 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", 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],(unsigned long) 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, 11813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Expected %lu bytes; found %lu bytes",(unsigned long) length, 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) 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 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 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 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) WriteBlob(image,(unsigned long) 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{ 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 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); 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) 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; 13433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 13453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) 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 { 13533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 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 */ 13913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 13923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 13933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=(long) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 13943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=(long) ((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 /* 14113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read two longs from CLON, MOVE or PAST chunk 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14233ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic long mng_get_long(unsigned char *p) 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 1439faa852bad40107edae19405e76a299057668d795glennrp#if PNG_LIBPNG_VER < 10500 14403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 1441faa852bad40107edae19405e76a299057668d795glennrp#else 1442faa852bad40107edae19405e76a299057668d795glennrp png_longjmp(ping,1); 1443faa852bad40107edae19405e76a299057668d795glennrp#endif 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING, 14573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message); 14583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 14593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 14713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 14873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 14883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 14923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 14983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 15003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 15013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 15033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 15043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 15063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 15073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 15093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 15103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 15293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 1530f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy length=(png_uint_32) StringToLong(sp); 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 15463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 15503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) nibbles; i++) 15523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 15543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 15753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 15963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 15973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 16083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=(unsigned long) ((chunk->data[0] << 24) | 16103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 16113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=(unsigned long) ((chunk->data[4] << 24) | 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 16153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 16163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 16173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 16183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 16203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 16253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 16303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 16373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 16413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 16483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 16543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 16553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 16563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 16653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 1666faa852bad40107edae19405e76a299057668d795glennrp pass, 1667faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth, 1668faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, 1669faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method, 1670faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method, 1671faa852bad40107edae19405e76a299057668d795glennrp ping_filter_method, 1672faa852bad40107edae19405e76a299057668d795glennrp ping_num_trans; 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 16763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 16783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 16793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1680faa852bad40107edae19405e76a299057668d795glennrp png_bytep 1681faa852bad40107edae19405e76a299057668d795glennrp ping_trans_alpha; 1682faa852bad40107edae19405e76a299057668d795glennrp 1683faa852bad40107edae19405e76a299057668d795glennrp png_color_16p 1684faa852bad40107edae19405e76a299057668d795glennrp ping_background, 1685faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color; 1686faa852bad40107edae19405e76a299057668d795glennrp 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 16903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 16923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 16933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 16953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 16963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1697faa852bad40107edae19405e76a299057668d795glennrp png_uint_32 1698faa852bad40107edae19405e76a299057668d795glennrp ping_height, 1699faa852bad40107edae19405e76a299057668d795glennrp ping_width, 1700faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes; 1701faa852bad40107edae19405e76a299057668d795glennrp 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 17043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 17063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 17073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 17155c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 17163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 17283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 17293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 17313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 17323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 17373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 17383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 17393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 17403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 17433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 17443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1746f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 17473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 174925c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if (PNG_LIBPNG_VER < 10200) 17503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 17513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 17523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 17533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 175561b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 175661b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 175761b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 175861b4c957269727a0a2526edc2331881da8346100glennrp { 175961b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 176061b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 176161b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 176261b4c957269727a0a2526edc2331881da8346100glennrp } 176361b4c957269727a0a2526edc2331881da8346100glennrp# endif 176461b4c957269727a0a2526edc2331881da8346100glennrp#endif 176561b4c957269727a0a2526edc2331881da8346100glennrp 176661b4c957269727a0a2526edc2331881da8346100glennrp 1767ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 17683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 17693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 17723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 17743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 17753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 17763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 17773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 17783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 17793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 17803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 17853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 17913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 1796faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 18003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 18023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1803f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 18043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 18083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 18097b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 18107b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 18117b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 18127b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 18133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 18173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1818faa852bad40107edae19405e76a299057668d795glennrp 18193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 18203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 18213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 18223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 18253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 18283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 18483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1852991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp#if (PNG_LIBPNG_VER < 10400) 1853991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 1854991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 18553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 18563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 18573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 18623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 18633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 18643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 18673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1868991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# endif 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 1872faa852bad40107edae19405e76a299057668d795glennrp 1873faa852bad40107edae19405e76a299057668d795glennrp png_get_IHDR(ping,ping_info,&ping_width,&ping_height, 1874faa852bad40107edae19405e76a299057668d795glennrp &ping_bit_depth,&ping_color_type, 1875faa852bad40107edae19405e76a299057668d795glennrp &ping_interlace_method,&ping_compression_method, 1876faa852bad40107edae19405e76a299057668d795glennrp &ping_filter_method); 1877faa852bad40107edae19405e76a299057668d795glennrp 1878faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_num_trans, 1879faa852bad40107edae19405e76a299057668d795glennrp &ping_trans_color); 1880faa852bad40107edae19405e76a299057668d795glennrp 1881faa852bad40107edae19405e76a299057668d795glennrp (void) png_get_bKGD(ping, ping_info, &ping_background); 1882faa852bad40107edae19405e76a299057668d795glennrp 1883faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 18843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1885faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 1886faa852bad40107edae19405e76a299057668d795glennrp { 1887faa852bad40107edae19405e76a299057668d795glennrp png_set_packing(ping); 1888faa852bad40107edae19405e76a299057668d795glennrp ping_bit_depth = 8; 1889faa852bad40107edae19405e76a299057668d795glennrp } 18903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1891faa852bad40107edae19405e76a299057668d795glennrp 1892faa852bad40107edae19405e76a299057668d795glennrp image->depth=ping_bit_depth; 18933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 1894faa852bad40107edae19405e76a299057668d795glennrp image->interlace=ping_interlace_method != 0 ? PNGInterlace : NoInterlace; 18953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG width: %lu, height: %lu", 1899ccf55b0bcd8b6e7c1024fd75458e9eed14a090b2cristy (unsigned long) ping_width, (unsigned long) ping_height); 19003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color_type: %d, bit_depth: %d", 1902faa852bad40107edae19405e76a299057668d795glennrp ping_color_type, ping_bit_depth); 19033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG compression_method: %d", 1905faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method); 19063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG interlace_method: %d, filter_method: %d", 1908faa852bad40107edae19405e76a299057668d795glennrp ping_interlace_method,ping_filter_method); 19093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1911faa852bad40107edae19405e76a299057668d795glennrp#ifdef PNG_READ_iCCP_SUPPORTED 1912faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_iCCP)) 19133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression; 19163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 19183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy info, 19193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name; 19203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 19223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_length; 19233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, 19253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &profile_length); 19263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile_length != 0) 19273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 19293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 19303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG iCCP chunk."); 19343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(profile_length); 19353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetStringInfoDatum(profile,(const unsigned char *) info); 19363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,"icc",profile); 19373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 19383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sRGB_SUPPORTED) 19423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intent; 19453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_srgb) 19473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) 19483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->global_srgb_intent+1); 19493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_sRGB(ping,ping_info,&intent)) 19503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (intent+1); 19523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG sRGB chunk: rendering_intent: %d",intent+1); 19553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy double 19603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy file_gamma; 19613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1962faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_gAMA(ping,ping_info,&file_gamma)) 1963faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_gama) 1964faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,mng_info->global_gamma); 19653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_gAMA(ping,ping_info,&file_gamma)) 19663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=(float) file_gamma; 19683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG gAMA chunk: gamma: %f",file_gamma); 19713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1973faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 1974faa852bad40107edae19405e76a299057668d795glennrp { 1975faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_chrm != MagickFalse) 1976faa852bad40107edae19405e76a299057668d795glennrp { 1977faa852bad40107edae19405e76a299057668d795glennrp (void) png_set_cHRM(ping,ping_info, 1978faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.x, 1979faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.white_point.y, 1980faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.x, 1981faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.red_primary.y, 1982faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.x, 1983faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.green_primary.y, 1984faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.x, 1985faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_chrm.blue_primary.y); 1986faa852bad40107edae19405e76a299057668d795glennrp } 1987faa852bad40107edae19405e76a299057668d795glennrp } 1988faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 19893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_cHRM(ping,ping_info, 19913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.x, 19923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.y, 19933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.x, 19943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.y, 19953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.x, 19963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.y, 19973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.x, 19983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.y); 19993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG cHRM chunk."); 20023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent) 20043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2005faa852bad40107edae19405e76a299057668d795glennrp png_set_sRGB(ping,ping_info,image->rendering_intent-1); 2006faa852bad40107edae19405e76a299057668d795glennrp png_set_gAMA(ping,ping_info,0.45455f); 2007faa852bad40107edae19405e76a299057668d795glennrp png_set_cHRM(ping,ping_info, 2008faa852bad40107edae19405e76a299057668d795glennrp 0.6400f, 0.3300f, 0.3000f, 0.6000f, 2009faa852bad40107edae19405e76a299057668d795glennrp 0.1500f, 0.0600f, 0.3127f, 0.3290f); 20103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 2012faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) 20133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=png_get_x_offset_pixels(ping, ping_info); 20153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=png_get_y_offset_pixels(ping, ping_info); 20163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 20183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG oFFs chunk: x: %ld, y: %ld.",image->page.x, 20203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y); 20213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 2024faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 2025faa852bad40107edae19405e76a299057668d795glennrp { 2026faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_phys) 2027faa852bad40107edae19405e76a299057668d795glennrp { 2028faa852bad40107edae19405e76a299057668d795glennrp png_set_pHYs(ping,ping_info, 2029faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_x_pixels_per_unit, 2030faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_y_pixels_per_unit, 2031faa852bad40107edae19405e76a299057668d795glennrp mng_info->global_phys_unit_type); 2032faa852bad40107edae19405e76a299057668d795glennrp } 2033faa852bad40107edae19405e76a299057668d795glennrp } 2034faa852bad40107edae19405e76a299057668d795glennrp 2035faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 20363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 20393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 20413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 20423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 20433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image resolution. 20463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, 20480881b52ab4fee8427578a694081946c4c4e92b35cristy &unit_type); 20490881b52ab4fee8427578a694081946c4c4e92b35cristy image->x_resolution=(double) x_resolution; 20500881b52ab4fee8427578a694081946c4c4e92b35cristy image->y_resolution=(double) y_resolution; 20513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 20523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 20543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 20553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 20563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG pHYs chunk: xres: %lu, yres: %lu, units: %d.", 20600881b52ab4fee8427578a694081946c4c4e92b35cristy (unsigned long) x_resolution,(unsigned long) y_resolution,unit_type); 20613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2063faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 20643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 20673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 20693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 20703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 20723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((number_colors == 0) && 2073faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) 20743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte_length) 20763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,mng_info->global_plte, 20783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_plte_length); 2079faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 20803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length) 20813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length > 20833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length) 20843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 20853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 20863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "global tRNS has more entries than global PLTE", 20873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 20883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_tRNS(ping,ping_info,mng_info->global_trns, 20893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_trns_length,NULL); 20903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 20923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ( 20933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 20943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index || 20953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2096faa852bad40107edae19405e76a299057668d795glennrp png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 20973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 20993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 21003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 21023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_saved_bkgd_index) 21033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=mng_info->saved_bkgd_index; 21043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2105faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping, ping_info, PNG_INFO_bKGD)) 2106faa852bad40107edae19405e76a299057668d795glennrp background.index=ping_background->index; 21073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 21083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].red; 21093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 21103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].green; 21113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 21123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].blue; 21133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 21143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 21193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No global PLTE in file","`%s'", 21203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 21213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 2125faa852bad40107edae19405e76a299057668d795glennrp if (mng_info->have_global_bkgd && 2126faa852bad40107edae19405e76a299057668d795glennrp (!png_get_valid(ping,ping_info,PNG_INFO_bKGD))) 21273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_info->mng_global_bkgd; 2128faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 21293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image background color. 21323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG bKGD chunk."); 2136faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth <= MAGICKCORE_QUANTUM_DEPTH) 21373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2138faa852bad40107edae19405e76a299057668d795glennrp image->background_color.red=ping_background->red; 2139faa852bad40107edae19405e76a299057668d795glennrp image->background_color.green=ping_background->green; 2140faa852bad40107edae19405e76a299057668d795glennrp image->background_color.blue=ping_background->blue; 21413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 2145faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->red); 21463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 2147faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->green); 21483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 2149faa852bad40107edae19405e76a299057668d795glennrp ScaleShortToQuantum(ping_background->blue); 21503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 21543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 21553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 21563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 2157faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 21583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 21613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 21633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 21643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 21683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2169faa852bad40107edae19405e76a299057668d795glennrp max_sample = (1 << ping_bit_depth) - 1; 21703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2171faa852bad40107edae19405e76a299057668d795glennrp if ((ping_color_type == PNG_COLOR_TYPE_GRAY && 2172faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->gray > max_sample) || 2173faa852bad40107edae19405e76a299057668d795glennrp (ping_color_type == PNG_COLOR_TYPE_RGB && 2174faa852bad40107edae19405e76a299057668d795glennrp ((int)ping_trans_color->red > max_sample || 2175faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->green > max_sample || 2176faa852bad40107edae19405e76a299057668d795glennrp (int)ping_trans_color->blue > max_sample))) 21773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 21813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 2182faa852bad40107edae19405e76a299057668d795glennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 21833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 21843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2187faa852bad40107edae19405e76a299057668d795glennrp transparent_color.red= (Quantum)(ping_trans_color->red); 2188faa852bad40107edae19405e76a299057668d795glennrp transparent_color.green= (Quantum) (ping_trans_color->green); 2189faa852bad40107edae19405e76a299057668d795glennrp transparent_color.blue= (Quantum) (ping_trans_color->blue); 2190faa852bad40107edae19405e76a299057668d795glennrp transparent_color.opacity= (Quantum) (ping_trans_color->gray); 2191faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 21923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2193faa852bad40107edae19405e76a299057668d795glennrp if (ping_bit_depth < 8) 21943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=(Quantum) ((( 2196faa852bad40107edae19405e76a299057668d795glennrp ping_trans_color->gray)*255)/max_sample); 21973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 21993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 22003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 22013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 22053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 22063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2207faa852bad40107edae19405e76a299057668d795glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) 22083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 22093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 2212faa852bad40107edae19405e76a299057668d795glennrp 22133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 2214faa852bad40107edae19405e76a299057668d795glennrp 2215faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes=png_get_rowbytes(ping,ping_info); 2216faa852bad40107edae19405e76a299057668d795glennrp 22173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 22193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 2221faa852bad40107edae19405e76a299057668d795glennrp mng_info->image_box.right=(long) ping_width; 22223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2223faa852bad40107edae19405e76a299057668d795glennrp mng_info->image_box.bottom=(long) ping_height; 22243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 22253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2226faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_width=ping_width; 2227faa852bad40107edae19405e76a299057668d795glennrp mng_info->mng_height=ping_height; 22283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 22293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 22303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 22343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 2236faa852bad40107edae19405e76a299057668d795glennrp image->columns=ping_width; 2237faa852bad40107edae19405e76a299057668d795glennrp image->rows=ping_height; 2238faa852bad40107edae19405e76a299057668d795glennrp if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 2239faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2240faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY)) 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 2243faa852bad40107edae19405e76a299057668d795glennrp image->colors=1UL << ping_bit_depth; 22443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 22453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 22463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 22473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 22483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 22493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 22503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2251faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 22523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) number_colors; 22613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 22643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 22713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 22733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2274faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 22863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 22873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 22883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 22943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2295faa852bad40107edae19405e76a299057668d795glennrp scale=(QuantumRange/((1UL << ping_bit_depth)-1)); 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 22973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 22983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 23013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 23023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 23033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 23103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->number_scenes != 0) && (mng_info->scenes_found > (long) 23123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->first_scene+image_info->number_scenes))) 23133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping PNG image data for scene %ld", 23173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 23183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2320f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 23253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 23263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 23313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 2332faa852bad40107edae19405e76a299057668d795glennrp ping_rowbytes*sizeof(*png_pixels)); 23333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2334faa852bad40107edae19405e76a299057668d795glennrp png_pixels=(unsigned char *) AcquireQuantumMemory(ping_rowbytes, 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 23363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 23413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 23433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2344faa852bad40107edae19405e76a299057668d795glennrp if (setjmp(png_jmpbuf(ping))) 23453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 23483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2351f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 23553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 23563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 23573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 23603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 23617b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 23627b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 23637b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 23647b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 23653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 23663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2367ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2368ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2369ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 23713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 23723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 23773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 23793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2380faa852bad40107edae19405e76a299057668d795glennrp depth=(long) ping_bit_depth; 23813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2382faa852bad40107edae19405e76a299057668d795glennrp image->matte=(((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 2383faa852bad40107edae19405e76a299057668d795glennrp ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2384faa852bad40107edae19405e76a299057668d795glennrp (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? 2385faa852bad40107edae19405e76a299057668d795glennrp MagickTrue : MagickFalse; 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2390faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 23913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 23933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2394abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 23963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 23993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 24023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 24033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 24053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 2406faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 24073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 2412faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) && 24133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 24143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2422faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB) 24233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2424faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 24253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 24353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 24363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2455faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (4*image->columns); x != 0; x--) 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2461faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (2*image->columns); x != 0; x--) 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2468faa852bad40107edae19405e76a299057668d795glennrp if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_GRAY) 24693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 2471faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY || 2472faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 24773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2478faa852bad40107edae19405e76a299057668d795glennrp else if (depth == 8 && ping_color_type == PNG_COLOR_TYPE_RGB) 24793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 2481faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_RGB || 2482faa852bad40107edae19405e76a299057668d795glennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 24873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2488faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 24893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 24913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 2492faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY) 24933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 2495faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 2498faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 2501faa852bad40107edae19405e76a299057668d795glennrp else if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 25023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 25043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 25073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 25087a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 25097a287bfadeadea12e47c2376ca78a5d101687142cristy { 25107a287bfadeadea12e47c2376ca78a5d101687142cristy status=SetImageProgress(image,LoadImageTag,y,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 { 2527868a2427e79f0137e6e826959a8d3b463a848442cristy IndexPacket 25285c6f789db7a30bad01ace12b09ad9cd471339e94cristy indice; 2529868a2427e79f0137e6e826959a8d3b463a848442cristy 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 25353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2539faa852bad40107edae19405e76a299057668d795glennrp image->matte=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 25453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2548faa852bad40107edae19405e76a299057668d795glennrp row_offset=ping_rowbytes*y; 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25555c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 25563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 25573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2558faa852bad40107edae19405e76a299057668d795glennrp switch (ping_bit_depth) 25593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 25633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 25643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-7; x > 0; x-=8) 25663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 25723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= (long) (8-(image->columns % 8)); bit--) 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 25793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-3; x > 0; x-=4) 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 25833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 25863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 25883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=3; i >= (long) (4-(image->columns % 4)); i--) 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 25913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x > 0; x-=2) 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 25993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 26033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 26063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2607faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 26173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 26253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 26393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2640faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 26503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2660faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 26633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 266446f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 26663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 26703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2671faa852bad40107edae19405e76a299057668d795glennrp if (ping_color_type == 4) 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 26893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 2690868a2427e79f0137e6e826959a8d3b463a848442cristy { 26915c6f789db7a30bad01ace12b09ad9cd471339e94cristy indice=(IndexPacket) (*r++); 26925c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes[x]=indice; 26935c6f789db7a30bad01ace12b09ad9cd471339e94cristy q->red=image->colormap[indice].red; 26945c6f789db7a30bad01ace12b09ad9cd471339e94cristy q->green=image->colormap[indice].green; 26955c6f789db7a30bad01ace12b09ad9cd471339e94cristy q->blue=image->colormap[indice].blue; 2696868a2427e79f0137e6e826959a8d3b463a848442cristy } 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 26983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26997a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 27007a287bfadeadea12e47c2376ca78a5d101687142cristy { 27017a287bfadeadea12e47c2376ca78a5d101687142cristy status=SetImageProgress(image,LoadImageTag,y,image->rows); 27027a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 27037a287bfadeadea12e47c2376ca78a5d101687142cristy break; 27047a287bfadeadea12e47c2376ca78a5d101687142cristy } 27053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27067a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 27073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 27093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 27103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 27133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2714b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2715b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 27165c6f789db7a30bad01ace12b09ad9cd471339e94cristy if (image->storage_class == PseudoClass) 27175c6f789db7a30bad01ace12b09ad9cd471339e94cristy { 27185c6f789db7a30bad01ace12b09ad9cd471339e94cristy unsigned long 27195c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte; 27205c6f789db7a30bad01ace12b09ad9cd471339e94cristy 27215c6f789db7a30bad01ace12b09ad9cd471339e94cristy matte=image->matte; 27225c6f789db7a30bad01ace12b09ad9cd471339e94cristy image->matte=MagickFalse; 27235c6f789db7a30bad01ace12b09ad9cd471339e94cristy (void) SyncImage(image); 27245c6f789db7a30bad01ace12b09ad9cd471339e94cristy image->matte=matte;; 27255c6f789db7a30bad01ace12b09ad9cd471339e94cristy } 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) image_info->first_scene && image->delay != 0) 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 27353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2736f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 27373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 27413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 27423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2743faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 27443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 27463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 27473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 27503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 27523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2753c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2754e805a647adebb9faefcbd7f9a73ca8e91870614acristy#if 1 /* balfour fix */ 2755c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2756c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2757c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2758c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2759faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 2760c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2761faa852bad40107edae19405e76a299057668d795glennrp for (x=0; x < ping_num_trans; x++) 2762c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2763faa852bad40107edae19405e76a299057668d795glennrp image->colormap[x].opacity = ScaleCharToQuantum((unsigned char)(255-ping_trans_alpha[x])); 2764c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2765c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2766faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 2767c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 27685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (x=0; x < (int) image->colors; x++) 2769c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2770c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (image->colormap[x].red == transparent_color.opacity) 2771c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2772c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2773c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2774c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2775c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2776d027259799c88ed5e4f12d21a5366031bfef0904cristy (void) SyncImage(image); 2777c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2778c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2779c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2780c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2781c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (y=0; y < (long) image->rows; y++) 2782c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2783c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2784c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2785c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2786c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 27875c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 2788c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2789c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (x=(long) image->columns-1; x >= 0; x--) 2790c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2791c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ScaleQuantumToChar(q->red) == transparent_color.red && 2792c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->green) == transparent_color.green && 2793c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->blue) == transparent_color.blue) 2794c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2795c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2796c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2797c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2798c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2799c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2800c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2801c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2802c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2803c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2804c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2805c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2806c11cf6a442f3046940608a5743a68cc891deb13eglennrp 28073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 28083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 28103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 28113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 28123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28135c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 28163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 28183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 28193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2820faa852bad40107edae19405e76a299057668d795glennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 28213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 28223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28235c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 2824faa852bad40107edae19405e76a299057668d795glennrp if (indexpacket < ping_num_trans) 28253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 2826faa852bad40107edae19405e76a299057668d795glennrp (255-ping_trans_alpha[(long) indexpacket])); 28273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2828ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2831faa852bad40107edae19405e76a299057668d795glennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY) 28323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 28333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28345c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexpacket=indexes[x]; 28353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=image->colormap[(long) indexpacket].red; 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 28383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->red == transparent_color.opacity) 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2841ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 28473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ScaleQuantumToChar(q->red) == transparent_color.red && 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->green) == transparent_color.green && 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->blue) == transparent_color.blue) 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2853ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2859c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 28603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 28633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->depth > 8) 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 28653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 28673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) num_text; i++) 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 28703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 28743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 28803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 28853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 28923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 28943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 28983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 29033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 291290823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(MngBuffer)); 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 29273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 29293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 29303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 29363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 29373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 29383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 29393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 29413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 29443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 2945faa852bad40107edae19405e76a299057668d795glennrp if (ping_width > 250000L || ping_height > 250000L) 29463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 2947faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->width=ping_width; 2948faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->height=ping_height; 2949faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->color_type=ping_color_type; 2950faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->sample_depth=ping_bit_depth; 2951faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->interlace_method=ping_interlace_method; 2952faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->compression_method= 2953faa852bad40107edae19405e76a299057668d795glennrp ping_compression_method; 2954faa852bad40107edae19405e76a299057668d795glennrp mng_info->ob[object_id]->filter_method=ping_filter_method; 2955faa852bad40107edae19405e76a299057668d795glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2985f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 304490823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 30533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading JNG chunk type %c%c%c%c, length: %lu", 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 32903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3296ccf55b0bcd8b6e7c1024fd75458e9eed14a090b2cristy " jng_width: %16lu",(unsigned long) jng_width); 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 3298ccf55b0bcd8b6e7c1024fd75458e9eed14a090b2cristy " jng_width: %16lu",(unsigned long) jng_height); 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 33183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 334190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy color_image_info=(ImageInfo *)AcquireAlignedMemory(1,sizeof(ImageInfo)); 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 336190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(ImageInfo)); 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,(unsigned long) length); 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=((float) mng_get_long(p))*0.00001; 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (p[0]+1); 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_get_long(p); 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_get_long(&p[4]); 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) mng_get_long(p); 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) mng_get_long(&p[4]); 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 37883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 380990823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(*mng_info)); 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 39633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 39663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 39723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 39733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 398190823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 40043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading MNG chunk type %c%c%c%c, length: %lu", 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG width: %lu",mng_info->mng_width); 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG height: %lu",mng_info->mng_height); 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=(unsigned long) mng_get_long(p); 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=(unsigned long) mng_get_long(p); 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 41543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(page_geometry,MaxTextExtent,"%lux%lu+0+0", 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.right=(long) mng_info->mng_width; 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.bottom=(long) mng_info->mng_height; 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 41753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=(png_uint_32) mng_get_long(&p[2]); 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " final_delay=%ld",final_delay); 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->iterations=%ld",image->iterations); 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[object_id]=(long) ((p[4] << 24) | (p[5] << 16) | 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[object_id]=(long) ((p[8] << 24) | (p[9] << 16) | 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " x_off[%d]: %lu",object_id,mng_info->x_off[object_id]); 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " y_off[%d]: %lu",object_id,mng_info->y_off[object_id]); 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 42913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 42933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 43063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) (length/3); i++) 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=length/3; 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns_length=length; 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 43573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma=mng_get_long(p); 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[12]); 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[16]); 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[20]); 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[24]); 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[28]); 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_srgb_intent=(RenderingIntent) (p[0]+1); 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 44243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 44303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*p && ((p-chunk) < (long) length)) 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p-chunk) < (long) (length-4)) 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=(1UL*image->ticks_per_second* 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_delay=%ld",frame_delay); 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=(1UL*image->ticks_per_second* 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_timeout=%ld",frame_timeout); 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Frame_clipping: L=%ld R=%ld T=%ld B=%ld", 44883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb.left, fb.right,fb.top,fb.bottom); 44893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=(unsigned long) (mng_info->clip.right 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=(unsigned long) (mng_info->clip.bottom 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " subframe_width=%lu, subframe_height=%lu", 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width, subframe_height); 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 45203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 45993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < (long) length; j+=2) 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(long) first_object; i <= (long) last_object; i++) 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long loop_iters=1; 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iters=mng_get_long(&chunk[1]); 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " LOOP level %ld has %ld iterations ",loop_level,loop_iters); 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " ENDL: LOOP level %ld has %ld remaining iterations ", 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level,mng_info->loop_count[loop_level]); 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 47533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(p); 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(&p[4]); 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 48973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width=(unsigned long) mng_get_long(p); 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height=(unsigned long) mng_get_long(&p[4]); 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.right < (long) mng_info->mng_width) || 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.bottom < (long) mng_info->mng_height)) 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted transparent background layer, W=%lud, H=%lud", 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 50953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,-((long) length+12),SEEK_CUR); 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-2)*(mng_info->magn_mx); 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=image->columns; 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-3)*(mng_info->magn_mx-1); 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-2)*(mng_info->magn_my); 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=image->rows; 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-3)*(mng_info->magn_my-1); 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 52123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 52763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 52803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 53023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the rows to %lu",large_image->rows); 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-2) 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy <= 1 && y == (long) image->rows-1) 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-1) 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_my; 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y < (long) image->rows-1) 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(yy < (long) large_image->rows); 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53595c6f789db7a30bad01ace12b09ad9cd471339e94cristy /* TO DO: get color as function of indexes[x] */ 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) (((long) (2*i*((*n).red 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m))/((long) (m*2)) 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) (((long) (2*i*((*n).green 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green)+m))/((long) (m*2)) 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) (((long) (2*i*((*n).blue 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m))/((long) (m*2)) 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).opacity); 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) (2*i*((*n).opacity 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m))/((long) (m*2)) 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 54333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the columns to %lu",image->columns); 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 54463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 54493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (image->columns-length); 54523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x < (long) image->columns; x++) 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x == (long) (image->columns-length)) 54553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_ml; 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-2) 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx <= 1 && x == (long) image->columns-1) 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-1) 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mx; 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 54723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).red); 54813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 54833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +m)/((long) (m*2))+(*pixels).green); 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).blue); 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)/((long) (m*2)) 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 54993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 55043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 55083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 55113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 55123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m) /((long) (m*2)) 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 55143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 55813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 55823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.width=(unsigned long) (crop_box.right-crop_box.left); 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.height=(unsigned long) (crop_box.bottom-crop_box.top); 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->background_color.red >> 8) & 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.red & 0xff)) && 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.green >> 8) & 0xff) 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.green & 0xff)) && 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.blue >> 8) & 0xff) 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.blue & 0xff))); 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 56543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (indx=0; indx < (long) image->colors; indx++) 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->colormap[indx].red >> 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].red & 0xff)) && 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].green >> 8) & 0xff) 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].green & 0xff)) && 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].blue >> 8) & 0xff) 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].blue & 0xff))); 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->red >> 8) & 0xff) == 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->red & 0xff)) && 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->green >> 8) & 0xff) == 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->green & 0xff)) && 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->blue >> 8) & 0xff) == 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->blue & 0xff)) && 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->opacity >> 8) & 0xff) == 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->opacity & 0xff))))); 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 57133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) (image_info->first_scene+image_info->number_scenes)) 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 57423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 57863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->delay=%lu, final_delay=%lu",image->delay,final_delay); 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu",image->delay); 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu",++scene,image->delay); 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu dispose=%d",image->delay,(int) image->dispose); 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu dispose=%d",++scene, 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay,(int) image->dispose); 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 592625c1e2baba76d9cf3ec582f217f96af95259e747glennrp#else /* PNG_LIBPNG_VER > 10011 */ 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 593925c1e2baba76d9cf3ec582f217f96af95259e747glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 59573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned long RegisterPNGImage(void) 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport unsigned long RegisterPNGImage(void) 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 59743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 59753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 60793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 608718b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 608818b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 608918b17443128598500357da7bff2f01683cf32890cristy#endif 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6121514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 6122514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 612725c1e2baba76d9cf3ec582f217f96af95259e747glennrp#if PNG_LIBPNG_VER > 10011 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 61473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 61803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 61853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 62143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 62153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("writing raw profile: type=%s, length=%lu\n", 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) profile_type, length); 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 62473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 62483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 62493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 62533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 6255e20ffe5b8ae8373ac7a4919fdc642883411285b2cristy (png_size_t) (dp-text[0].text),"%8lu ",(unsigned long) length); 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 62713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 62923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 62933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 63033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 63063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 63133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 63153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 63233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 63243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 63263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 63313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 63323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 63333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 63393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6341cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6342cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 63435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_bytep 63445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha; 63455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_color_16 63505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background, 63515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color; 63525af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 63543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 63553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_uint_32 63605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height, 63615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width; 63625af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 63643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 63653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 63673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 63683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 63703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 63713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 63735c6f789db7a30bad01ace12b09ad9cd471339e94cristy *indexes; 63743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 63783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 63813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 63833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 63843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 63853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp volatile int 63875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth, 63885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type, 63895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method, 63905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method, 63915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method, 63925af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans; 63935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 63943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 63953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 63965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth, 63975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth; 63983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 64003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 64013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 64023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 64033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 64053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 64063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6408f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 64093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp /* Initialize some stuff */ 64125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=0, 64135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=0, 64145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=0, 64155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_compression_method=0, 64165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=0, 64175af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans = 0; 64185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.red = 0; 64205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.green = 0; 64215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.blue = 0; 64225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.gray = 0; 64235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index = 0; 64245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=0; 64265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=0; 64275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=0; 64285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=0; 64295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 64305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha = NULL; 64315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 6432ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 64333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 64343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 64353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 64363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 64383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 64393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 6440057310ded72df25c84f1ad647129a95c1f1753e3cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 64413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 64423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 64453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 64473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 64483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 64493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 64503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 64523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 64533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 64553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 64573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 64583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 64663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 64693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 64713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 64723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 64733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 64753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6476f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 64773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 64793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 64823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 64843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 64853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 64863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 64883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 64893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 64913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 64935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_width=image->columns; 64945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_height=image->rows; 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 64963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 64983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 64993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 65013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 65023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 65033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6509e20ffe5b8ae8373ac7a4919fdc642883411285b2cristy " width=%lu",(unsigned long) ping_width); 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6511e20ffe5b8ae8373ac7a4919fdc642883411285b2cristy " height=%lu",(unsigned long) ping_height); 65123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_matte=%u",image->matte); 65143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth=%lu",image->depth); 65163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " requested PNG image_depth=%lu",image->depth); 65183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 65205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=(png_byte) save_image_depth; 65213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 65223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 65233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 65423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 65493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 65513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 65673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 65693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 65893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 65993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66075af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 66095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 66193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 66233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 66283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 66293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 66303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors quantized to %ld",number_colors); 66353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 66383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 664698156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 665598156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 665698156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i,palette[i].red,palette[i].green,palette[i].blue); 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 66783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 66815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 66825af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp int 66895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[256]; 66905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 66965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp trans_alpha[i]=255; 66973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 67043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 67053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67065c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes=GetAuthenticIndexQueue(image); 67073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 67083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67115c6f789db7a30bad01ace12b09ad9cd471339e94cristy indexes[x]=(IndexPacket) (number_colors-1); 67125c6f789db7a30bad01ace12b09ad9cd471339e94cristy trans_alpha[(long) indexes[x]]=(png_byte) (255- 6713ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 67143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 67163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 67183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 67215af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (trans_alpha[i] != 255) 67225af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 67235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 67255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping, ping_info, PNG_INFO_tRNS); 67265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping, ping_info, PNG_INFO_tRNS)) 67275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 67285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 67295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp { 67305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp for (i=0; i<256; i++) 67315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans_alpha[i]; 67325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp } 67335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 67345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, 67355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha, 67365af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans, 67375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 67435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 67463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 67503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 67523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67605af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67645af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) mng_info->write_png_colortype-1; 67685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 67695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 67775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) ((matte == MagickTrue)? 67783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 67793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67815af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67865af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 67903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 67913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 67923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 67933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67945af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 67953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 67983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 67993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 68003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 68013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68025af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp "Selected PNG colortype=%d",ping_color_type); 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 68135af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB || 68145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 68155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 68163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68185af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 68213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 68233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68245af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 68255af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_PALETTE) 68313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 68335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((int) (1 << ping_bit_depth) < (long) image_colors) 68345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",image_colors); 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG bit depth: %d",ping_bit_depth); 68423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp old_bit_depth=ping_bit_depth; 68465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < (int)mng_info->write_png_depth) 68473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = mng_info->write_png_depth; 68495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth > 8) 68505af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth = 8; 68515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth != (int) old_bit_depth) 68523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors increased to %ld",image_colors); 68563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 68623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " Tentative PNG color type: %d",ping_color_type); 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_info->type: %d",image_info->type); 68683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth: %lu",image_depth); 68703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68715af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " ping_bit_depth: %d",ping_bit_depth); 68723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 68805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 68813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 68823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 68893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68905af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 68983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 69053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((y == (long) image->rows) && (x == (long) image->columns)) 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp No transparent pixels are present. Change 4 or 6 to 0 or 2. 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 69195af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type&=0x03; 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 69253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 69275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 8) 69283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 69295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 4) 69303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 69315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 2) 69323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 69335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth == 1) 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 69355af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red=(png_uint_16) 6936ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 69375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green=(png_uint_16) 6938ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 69395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue=(png_uint_16) 6940ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 69415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 69435af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.index=(png_byte) 694446f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 69455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (void) png_set_tRNS(ping, ping_info, NULL, 0, 69465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp &ping_trans_color); 69473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69485af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 69533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 69573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 69593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 69623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p) == 0) 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 69683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 69693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 69713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 69733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 69743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69785af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_trans_color,*p)) 69793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 69813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 69903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69915af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 69953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red&=0xff; 69975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green&=0xff; 69985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue&=0xff; 69995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray&=0xff; 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 70045af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 70063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 70083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 70115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 70123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=PNG_COLOR_TYPE_GRAY; 70153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 70165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 70193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=1 << image_depth; 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 70235af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=16; 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70265af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 70275af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((int) (1 << ping_bit_depth) 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < (long) image_colors) 70345af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (mng_info->optimize && ping_color_type == 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 70403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 70453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 70463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 70473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image_colors; i++) 70493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 70513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 70543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 70563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 70573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 70603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 70635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 70655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=2; 70663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 70675af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=4; 70683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp image_depth=ping_bit_depth; 70713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 70813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 70845af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 70853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 70863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,NULL,0); 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 70893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up empty PLTE chunk"); 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 70963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 70973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 71023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 710498156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 71063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 712198156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 712298156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 71243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71295af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=1; 71305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp while ((1UL << ping_bit_depth) < number_colors) 71315af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth <<= 1; 71323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71335af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 71353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 71373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 71383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 71443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 71465c6f789db7a30bad01ace12b09ad9cd471339e94cristy *packet_indexes; 71473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 71533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 71543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 71553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 71563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71605c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_indexes=GetVirtualIndexQueue(image); 71613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71685c6f789db7a30bad01ace12b09ad9cd471339e94cristy packet_index=packet_indexes[x]; 71693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert((unsigned long) packet_index < number_colors); 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != 256) 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != (png_byte) (255- 7173ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 71743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type=(png_byte) 71763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[(long) packet_index]=(png_byte) (255- 7181ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 71823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71855af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71875af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 71885af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 71895af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_PLTE); 71903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 71913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 71923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 71943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 72033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 72043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 72055af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=(unsigned short) (i+1); 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans == 0) 72095af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_invalid(ping,ping_info,PNG_INFO_tRNS); 72105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 72115af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_num_trans=0; 72125af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_num_trans != 0) 72133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72145af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha=(unsigned char *) AcquireQuantumMemory( 72155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp number_colors,sizeof(*ping_trans_alpha)); 72165af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_trans_alpha == (unsigned char *) NULL) 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 72193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 72205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_alpha[i]=(png_byte) trans[i]; 72213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 72285af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72305af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_background.index=(png_byte) i; 72313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 72363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 72373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.red*=0x0101; 72405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.green*=0x0101; 72415af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.blue*=0x0101; 72425af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray*=0x0101; 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72495af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8 && ping_color_type == 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 72513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 72533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 72563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72585af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp maxval=(png_uint_16) ((1 << ping_bit_depth)-1); 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 72623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72695af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 72705af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_trans_color.gray)); 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72745af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color type: %d",ping_color_type); 72753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 72773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 72813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 72913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 72923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 72943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level=(int) MagickMin((long) quality/10,9); 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 73013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 73073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 73163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 73205af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 73323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 73353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 73363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73375af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || 73385af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 73403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 73413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 73463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 73483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73615af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp#ifdef PNG_WRITE_iCCP_SUPPORTED 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 73633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 73763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_set_sRGB(ping,ping_info,(int) (image->rendering_intent-1)); 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73935af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) 73943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 74003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 74083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 74173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 74183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 74193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 74243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 74283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 74293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 74303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74325af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method=image_info->interlace != NoInterlace; 74333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74445af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB; 74455af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_bit_depth < 8) 74465af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth=8; 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74515af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 74555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (int) mng_info->write_png_depth != ping_bit_depth) || 74563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 74575af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ((int) mng_info->write_png_colortype-1 != ping_color_type && 7458991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 74595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp !(mng_info->write_png_colortype == 5 && ping_color_type == 0)))) 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 74685af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth); 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 74755af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_color_type); 74763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, 74793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 74833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 74853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 74863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 7487b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging != MagickFalse) 7488b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7489b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Added an opaque matte channel"); 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74965af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp png_set_IHDR(ping,ping_info,ping_width,ping_height, 74975af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_bit_depth,ping_color_type, 74985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_interlace_method,ping_compression_method, 74995af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp ping_filter_method); 75005af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 75013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 75073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 75093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 75113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]; 75123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 75193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 75243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping->mode |= PNG_HAVE_IDAT; 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 7535b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (image_depth > 8) 7536b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 75377202c101b42be63076be56386f79429bb2f39784cristy switch (ping_color_type) 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7539b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGB: 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 7541b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7542b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_GRAY_ALPHA: 7543b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp rowbytes*=2; 7544b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7545b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp case PNG_COLOR_TYPE_RGBA: 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 7547b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 7548b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp default: 7549b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp break; 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7551b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging) 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7553b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7554b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing PNG image data"); 7555b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7556b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Allocating %lu bytes of memory for pixels",rowbytes); 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75655af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (setjmp(png_jmpbuf(ping))) 75663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 75723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 75763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7580f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7584ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7585ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7586ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 75953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 75973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 76153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 76163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 76203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 76223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 76303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 7633b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7634b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7635b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (1)"); 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 76555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76635af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 7671b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7672b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7673b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY PNG pixels (2)"); 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7677b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7678b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7679b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (2)"); 76803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 76823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7683b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7684b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7685b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (2)"); 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 77013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 77073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77155af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7716b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 7717b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7718b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7719b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7720b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7721b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (3)"); 7722b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 77243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 77263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 7729b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp if (logging && y == 0) 7730b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7731b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (3)"); 77323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 77363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 77383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77395af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && 77405af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 77413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 77463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp if (ping_color_type == PNG_COLOR_TYPE_GRAY) 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77595af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 7760b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp { 776107cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7762b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7763b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing GRAY_ALPHA PNG pixels (4)"); 7764b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) ExportQuantumPixels(image,(const CacheView *) NULL, 7765b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 7766b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp } 77673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 777007cd77aff3a2230f1ba3fc97f24f585b3682ff1fglennrp if (logging && y == 0) 7771b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7772b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Writing row of pixels (4)"); 77733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7784b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7785b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 77863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7790b4a1341a4d06abe5f603ad9052b6ddc1a667dcd5glennrp " Wrote PNG image data"); 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7792e20ffe5b8ae8373ac7a4919fdc642883411285b2cristy " Width: %lu",(unsigned long) ping_width); 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7794e20ffe5b8ae8373ac7a4919fdc642883411285b2cristy " Height: %lu",(unsigned long) ping_height); 77953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 77963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78015af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG bit-depth written: %d",ping_bit_depth); 78023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 78033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78085af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG color-type written: %d",ping_color_type); 78093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78105af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp " PNG Interlace method: %d",ping_interlace_method); 78113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 78143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 78163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 78183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 78263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 78273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 78363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 78383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 78523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 78555af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_width != mng_info->page.width) || 78565af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (ping_height != mng_info->page.height)) 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 78593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 78603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 78633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 78663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 78673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 78683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 78775af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.x + ping_width)); 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 78805af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp (png_uint_32) (mng_info->page.y + ping_height)); 78813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 78883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 78903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 78913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 78973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78985af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp s[0]=(char) ping_bit_depth; 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79065af765f10ae9ac5aae02c0b7c213e22a43c0672dglennrp 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7912f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 79203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 79213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 79453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 79513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 79653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 79663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 79713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 80023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 80583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 80613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 806590823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 80763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 3 */ 4; 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteMatteType); 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 80933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 2 */ 3; 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 6 */ 7; 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 1; 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 2; 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 4; 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 16; 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 1; 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 3; 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 4; 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 5; 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 7; 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 82063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,image->columns); 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,image->rows); 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG width:%15lu",image->columns); 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG height:%14lu",image->rows); 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 83763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) (num_bytes-4L)); 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,(unsigned long) (num_bytes-4L)); 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 83833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 83903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 83923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 83963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 84753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+4,(long) (image->page.x)); 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+8,(long) (image->page.y)); 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write IDAT chunks from blob, length=%lu.", 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 85343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=8; i<(long) length; i+=len+12) 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) len); 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,(unsigned long) len); 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping %c%c%c%c chunk, length=%lu.", 85533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(p),*(p+1),*(p+2),*(p+3),len); 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAA chunk, length=%lu.", 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 85933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Created jpeg_image, %lu x %lu.",jpeg_image->columns, 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->rows); 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAT chunk, length=%lu.", 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 86263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 86283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 86313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 86983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 871390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 87143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 87203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 87443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8786d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#if (PNG_LIBPNG_VER < 10200) 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 880990823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image_info depth: %ld",image_info->depth); 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Scene: %ld",scene++); 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image depth: %lu",p->depth); 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",p->colors); 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteMatteType); 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteType); 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=10; 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "input has zero delay between all frames; assuming 10 cs", 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",""); 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second/final_delay; 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,mng_info->page.width); 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,mng_info->page.height); 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_nEED,(unsigned long) length); 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM delay: %lu", 92220881b52ab4fee8427578a694081946c4c4e92b35cristy (unsigned long) (mng_info->ticks_per_second* 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 9226e20ffe5b8ae8373ac7a4919fdc642883411285b2cristy " TERM iterations: %lu",(unsigned long) PNG_UINT_31_MAX); 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image iterations: %lu",image->iterations); 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 92883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 92893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 92923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 92933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 93283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 93803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 94003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 94333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 94983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 95083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 95143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 95153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 95193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 95203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=image->delay; 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 95233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 95263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 95463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 95573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 95593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 95603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 95613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 95643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 95653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 95673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 95683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 95703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 95723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 95733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 95743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 95753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 95763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 95793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 95843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 95853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9586d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#else /* PNG_LIBPNG_VER > 10011 */ 95873ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 95883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 95893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 95903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 95913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 95923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 95933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 95943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 95953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 95963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 95973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 95983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9599d5045b44ae266ec7d6d2fca5e7c8a69a28938ec4glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 96003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9601