png.c revision cecd5765c41f64cc68d4a5d77bb4afe92707a49e
13ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 23ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 33ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 43ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 53ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 63ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PPPP N N GGGG % 73ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P P NN N G % 83ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PPPP N N N G GG % 93ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P N NN G G % 103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% P N N GGG % 113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Read/Write Portable Network Graphics Image Format % 143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Software Design % 163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% John Cristy % 173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Glenn Randers-Pehrson % 183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 1997 % 193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2116af1cbdffcc02e7239d432e5fb51734fcf9f9ffcristy% Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % 223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% dedicated to making software imaging solutions freely available. % 233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% You may not use this file except in compliance with the License. You may % 253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% obtain a copy of the License at % 263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% http://www.imagemagick.org/script/license.php % 283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Unless required by applicable law or agreed to in writing, software % 303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% distributed under the License is distributed on an "AS IS" BASIS, % 313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % 323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% See the License for the specific language governing permissions and % 333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% limitations under the License. % 343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Include declarations. 433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/studio.h" 455a2ca481ab4ff6751bba842263739966e53441aacristy#include "magick/attribute.h" 463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/blob.h" 473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/blob-private.h" 483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/cache.h" 493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/color.h" 503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/color-private.h" 513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/colorspace.h" 523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/constitute.h" 533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/enhance.h" 543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception.h" 553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/exception-private.h" 563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/geometry.h" 57f2e1166e90de2dfe2e6a2aed7cd5f73640f34a7acristy#include "magick/histogram.h" 583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image.h" 593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/image-private.h" 603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/layer.h" 613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/list.h" 623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/log.h" 633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/magick.h" 643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/memory_.h" 653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/module.h" 663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor.h" 673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/monitor-private.h" 683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/option.h" 693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/profile.h" 713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/property.h" 723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantize.h" 733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/resource_.h" 743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/semaphore.h" 753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/quantum-private.h" 763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/static.h" 773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/statistic.h" 783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/string_.h" 79f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy#include "magick/string-private.h" 803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/transform.h" 813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/utility.h" 823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 83286a6355c4544b794da2b6df973faad07c69e541glennrp 847ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp/* Suppress libpng pedantic warnings that were added in 857ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * libpng-1.2.41 and libpng-1.4.0. If you are working on 867ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * migration to libpng-2.0, remove these defines and then 877ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * fix any code that generates warnings. 887ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp */ 89991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp/* #define PNG_DEPRECATED Use of this function is deprecated */ 907ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_USE_RESULT /* The result of this function must be checked */ 917ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_NORETURN /* This function does not return */ 927ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_ALLOCATED /* The result of the function is new memory */ 937ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_DEPSTRUCT /* Access to this struct member is deprecated */ 94286a6355c4544b794da2b6df973faad07c69e541glennrp 953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "png.h" 963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "zlib.h" 973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* ImageMagick differences */ 993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define first_scene scene 1003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER < 10400 1022c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_color trans_values /* Changed at libpng-1.4.0beta35 */ 1032c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_alpha trans /* Changed at libpng-1.4.0beta74 */ 1042c74c978809443456f5a21cd43b25b0a55c7881aglennrp#else 1052c74c978809443456f5a21cd43b25b0a55c7881aglennrp /* We could parse PNG_LIBPNG_VER_STRING here but it's too much bother.. 1062c74c978809443456f5a21cd43b25b0a55c7881aglennrp * Just don't use libpng-1.4.0beta32-34 or beta67-73 1072c74c978809443456f5a21cd43b25b0a55c7881aglennrp */ 1082c74c978809443456f5a21cd43b25b0a55c7881aglennrp# ifndef PNG_USER_CHUNK_CACHE_MAX /* Added at libpng-1.4.0beta32 */ 1092c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_color trans_values /* Changed at libpng-1.4.0beta35 */ 1102c74c978809443456f5a21cd43b25b0a55c7881aglennrp# endif 1112c74c978809443456f5a21cd43b25b0a55c7881aglennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 1122c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_alpha trans /* Changed at libpng-1.4.0beta74 */ 1132c74c978809443456f5a21cd43b25b0a55c7881aglennrp# endif 1143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#if PNG_LIBPNG_VER > 10011 1173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Optional declarations. Define or undefine them as you like. 1193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* #define PNG_DEBUG -- turning this on breaks VisualC compiling */ 1213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Features under construction. Define these to work on them. 1243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_OBJECT_BUFFERS 1263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_BASI_SUPPORTED 1273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_COALESCE_LAYERS /* In 5.4.4, this interfered with MMAP'ed files. */ 1283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_INSERT_LAYERS /* Troublesome, but seem to work as of 5.4.4 */ 1293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_BUILD_PALETTE /* This works as of 5.4.3. */ 1303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SORT_PALETTE /* This works as of 5.4.0. */ 1313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_JPEG_DELEGATE) 1323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define JNG_SUPPORTED /* Not finished as of 5.5.2. See "To do" comments. */ 1333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(RGBColorMatchExact) 1353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define IsPNGColorEqual(color,target) \ 1363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((color).red == (target).red) && \ 1373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).green == (target).green) && \ 1383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).blue == (target).blue)) 1393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Establish thread safety. 1433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is claimed to be safe on these platforms: 1443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is alleged to be unsafe on these platforms: 1453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef SETJMP_IS_THREAD_SAFE 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SETJMP_NOT_THREAD_SAFE 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic SemaphoreInfo 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_semaphore = (SemaphoreInfo *) NULL; 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This temporary until I set up malloc'ed object attributes array. 1573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Recompile with MNG_MAX_OBJECTS=65536L to avoid this limit but 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy waste more memory. 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_MAX_OBJECTS 256 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If this not defined, spec is interpreted strictly. If it is 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined, an attempt will be made to recover from some errors, 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy including 1663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o global PLTE too short 1673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_LOOSE 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Don't try to define PNG_MNG_FEATURES_SUPPORTED here. Make sure 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy it's defined in libpng/pngconf.h, version 1.0.9 or later. It won't work 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy with earlier versions of libpng. From libpng-1.0.3a to libpng-1.0.8, 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_READ|WRITE_EMPTY_PLTE were used but those have been deprecated in 1753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy libpng in favor of PNG_MNG_FEATURES_SUPPORTED, so we set them here. 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_MNG_FEATURES_SUPPORTED is disabled by default in libpng-1.0.9 and 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy will be enabled by default in libpng-1.2.0. 1783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_MNG_FEATURES_SUPPORTED 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_READ_EMPTY_PLTE_SUPPORTED 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_WRITE_EMPTY_PLTE_SUPPORTED 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_WRITE_EMPTY_PLTE_SUPPORTED 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Maximum valid unsigned long in PNG/MNG chunks is (2^31)-1 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This macro is only defined in libpng-1.0.3 and later. 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Previously it was PNG_MAX_UINT but that was deprecated in libpng-1.2.6 1923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_UINT_31_MAX 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_UINT_31_MAX (png_uint_32) 0x7fffffffL 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Constant strings for known chunk types. If you need to add a chunk, 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy add a string holding the name here. To make the code more 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy portable, we use ASCII numbers like this, not characters. 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MHDR[5]={ 77, 72, 68, 82, (png_byte) '\0'}; 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BACK[5]={ 66, 65, 67, 75, (png_byte) '\0'}; 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BASI[5]={ 66, 65, 83, 73, (png_byte) '\0'}; 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLIP[5]={ 67, 76, 73, 80, (png_byte) '\0'}; 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLON[5]={ 67, 76, 79, 78, (png_byte) '\0'}; 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DEFI[5]={ 68, 69, 70, 73, (png_byte) '\0'}; 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DHDR[5]={ 68, 72, 68, 82, (png_byte) '\0'}; 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DISC[5]={ 68, 73, 83, 67, (png_byte) '\0'}; 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_ENDL[5]={ 69, 78, 68, 76, (png_byte) '\0'}; 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_FRAM[5]={ 70, 82, 65, 77, (png_byte) '\0'}; 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IEND[5]={ 73, 69, 78, 68, (png_byte) '\0'}; 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IHDR[5]={ 73, 72, 68, 82, (png_byte) '\0'}; 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JHDR[5]={ 74, 72, 68, 82, (png_byte) '\0'}; 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_LOOP[5]={ 76, 79, 79, 80, (png_byte) '\0'}; 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MAGN[5]={ 77, 65, 71, 78, (png_byte) '\0'}; 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MEND[5]={ 77, 69, 78, 68, (png_byte) '\0'}; 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MOVE[5]={ 77, 79, 86, 69, (png_byte) '\0'}; 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PAST[5]={ 80, 65, 83, 84, (png_byte) '\0'}; 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PLTE[5]={ 80, 76, 84, 69, (png_byte) '\0'}; 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SAVE[5]={ 83, 65, 86, 69, (png_byte) '\0'}; 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SEEK[5]={ 83, 69, 69, 75, (png_byte) '\0'}; 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SHOW[5]={ 83, 72, 79, 87, (png_byte) '\0'}; 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_TERM[5]={ 84, 69, 82, 77, (png_byte) '\0'}; 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_bKGD[5]={ 98, 75, 71, 68, (png_byte) '\0'}; 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_cHRM[5]={ 99, 72, 82, 77, (png_byte) '\0'}; 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_gAMA[5]={103, 65, 77, 65, (png_byte) '\0'}; 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_nEED[5]={110, 69, 69, 68, (png_byte) '\0'}; 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYg[5]={112, 72, 89, 103, (png_byte) '\0'}; 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYs[5]={112, 72, 89, 115, (png_byte) '\0'}; 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sBIT[5]={115, 66, 73, 84, (png_byte) '\0'}; 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sRGB[5]={115, 82, 71, 66, (png_byte) '\0'}; 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tRNS[5]={116, 82, 78, 83, (png_byte) '\0'}; 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IDAT[5]={ 73, 68, 65, 84, (png_byte) '\0'}; 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAT[5]={ 74, 68, 65, 84, (png_byte) '\0'}; 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAA[5]={ 74, 68, 65, 65, (png_byte) '\0'}; 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JdAA[5]={ 74, 100, 65, 65, (png_byte) '\0'}; 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JSEP[5]={ 74, 83, 69, 80, (png_byte) '\0'}; 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_oFFs[5]={111, 70, 70, 115, (png_byte) '\0'}; 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristyOther known chunks that are not yet supported by ImageMagick: 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_hIST[5]={104, 73, 83, 84, (png_byte) '\0'}; 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iTXt[5]={105, 84, 88, 116, (png_byte) '\0'}; 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sPLT[5]={115, 80, 76, 84, (png_byte) '\0'}; 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sTER[5]={115, 84, 69, 82, (png_byte) '\0'}; 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tEXt[5]={116, 69, 88, 116, (png_byte) '\0'}; 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tIME[5]={116, 73, 77, 69, (png_byte) '\0'}; 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_zTXt[5]={122, 84, 88, 116, (png_byte) '\0'}; 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBox 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height, 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width; 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte[256]; 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reference_count; 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_sample_depth, 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy concrete, 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method, 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen, 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_type, 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixel_sample_depth, 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte_length, 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sample_depth, 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable; 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBuffer; 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngInfo 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBuffer 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ob[MNG_MAX_OBJECTS]; 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image * 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image; 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page; 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy adjoin, 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_in_read_buffer, 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy found_empty_plte, 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_backgrounds, 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_chrms, 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_gammas, 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_palettes, 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_physs, 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_srgbs, 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode, 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_bkgd, 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_chrm, 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_gama, 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_phys, 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_sbit, 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_srgb, 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_saved_bkgd_index, 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_chrm, 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_gama, 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_plte, 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_srgb, 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_fram, 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_framing_mode, 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy saved_bkgd_index; 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors; 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_found, 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_count[256], 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iteration[256], 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scenes_found, 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_off[MNG_MAX_OBJECTS], 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_off[MNG_MAX_OBJECTS]; 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clip, 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame, 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_box, 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_clip[MNG_MAX_OBJECTS]; 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* These flags could be combined into one byte */ 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exists[MNG_MAX_OBJECTS], 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen[MNG_MAX_OBJECTS], 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_active[256], 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy invisible[MNG_MAX_OBJECTS], 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable[MNG_MAX_OBJECTS]; 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_jump[256]; 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte; 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_8 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_sbit; 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_buffer[8], 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns[256]; 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy float 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_gamma; 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ChromaticityInfo 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_chrm; 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RenderingIntent 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_srgb_intent; 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy delay, 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte_length, 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns_length, 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_x_pixels_per_unit, 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_y_pixels_per_unit, 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_width, 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_height, 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ticks_per_second; 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IsPalette, 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_phys_unit_type, 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_warning, 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clon_warning, 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dhdr_warning, 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jhdr_warning, 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_warning, 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy past_warning, 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phyg_warning, 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phys_warning, 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sbit_warning, 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy show_warning, 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type, 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng, 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_colortype, 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_depth, 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png8, 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png24, 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png32; 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width, 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height; 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_depth, 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type, 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method, 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type, 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method, 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red, 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green, 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue, 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha, 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable; 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 4663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_global_bkgd; 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngInfo; 4693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* VER */ 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WritePNGImage(const ImageInfo *,Image *); 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteMNGImage(const ImageInfo *,Image *); 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteJNGImage(const ImageInfo *,Image *); 4813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMax(const long x,const long y) 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMin(const long x,const long y) 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 496c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#if PNG_LIBPNG_VER > 10111 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 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 % 5043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% CompressColormapTransFirst compresses an image colormap removing 5103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% any duplicate and unused color entries and putting the transparent colors 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% first. Returns MagickTrue on success, MagickFalse on error. 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the CompressColormapTransFirst method is: 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned int CompressColormapTransFirst(Image *image) 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 52098156a3a465a004545e39434c63052b955a74d1cglennrp% This function updates image->colors and image->colormap. 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType CompressColormapTransFirst(Image *image) 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed, 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k; 5283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j, 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors, 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *colormap; 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 5403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used; 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 5503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *map, 5533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *opacity; 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *marker, 5573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency; 5583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if colormap can be compressed. 5613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 56598156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56698156a3a465a004545e39434c63052b955a74d1cglennrp " CompressColorMapTransFirst %s (%ld colors)", 56798156a3a465a004545e39434c63052b955a74d1cglennrp image->filename,image->colors); 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class != PseudoClass || image->colors > 256 || 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors < 2) 57098156a3a465a004545e39434c63052b955a74d1cglennrp { 57198156a3a465a004545e39434c63052b955a74d1cglennrp if (image->debug != MagickFalse) 57298156a3a465a004545e39434c63052b955a74d1cglennrp { 57398156a3a465a004545e39434c63052b955a74d1cglennrp (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57498156a3a465a004545e39434c63052b955a74d1cglennrp " Could not compress colormap"); 57598156a3a465a004545e39434c63052b955a74d1cglennrp if (image->colors > 256 || image->colors == 0) 57698156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickFalse); 57798156a3a465a004545e39434c63052b955a74d1cglennrp else 57898156a3a465a004545e39434c63052b955a74d1cglennrp return(MagickTrue); 57998156a3a465a004545e39434c63052b955a74d1cglennrp } 58098156a3a465a004545e39434c63052b955a74d1cglennrp } 5813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) AcquireQuantumMemory(image->colors,sizeof(*marker)); 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker == (unsigned char *) NULL) 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) AcquireQuantumMemory(image->colors,sizeof(*opacity)); 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity == (IndexPacket *) NULL) 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark colors that are present. 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=(long) image->colors; 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 5973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 5993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 6003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 6063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetVirtualIndexQueue(image); 6083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[(int) indices[x]]=MagickTrue; 612ce70c17bb6433add2eb069515a4f3105989e0662cristy opacity[(int) indices[x]]=GetOpacityPixelComponent(p); 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indices[x] > top_used) 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=indices[x]; 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[(int) indices[x]]=MagickTrue; 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indices[x] > top_used) 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=indices[x]; 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark background color, topmost occurrence if more than one. 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=number_colors-1; i; i--) 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsColorEqual(image->colormap+i,&image->background_color)) 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickTrue; 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Unmark duplicates. 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors-1; i++) 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Count colors that still remain. 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickFalse; 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors=0; 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors++; 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity[i] != OpaqueOpacity) 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickTrue; 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!have_transparency || (marker[0] && 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (opacity[0] == (Quantum) TransparentOpacity))) 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && (new_number_colors == number_colors)) 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No duplicate or unused entries, and transparency-swap not needed. 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickFalse; 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((long) top_used >= new_number_colors) 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Compress colormap. 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) AcquireQuantumMemory(image->colors, 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*colormap)); 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (colormap == (PixelPacket *) NULL) 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Eliminate unused colormap entries. 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) AcquireQuantumMemory((size_t) number_colors, 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*map)); 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map == (IndexPacket *) NULL) 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k=0; 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[i]=(IndexPacket) k; 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=(IndexPacket) k; 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k++; 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=0; 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[j]=image->colormap[i]; 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j++; 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Move the first transparent color to palette entry 0. 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < number_colors; i++) 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap; 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap=colormap[0]; 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[0]=colormap[(int) map[i]]; 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[(long) map[i]]=temp_colormap; 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < number_colors; j++) 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map[j] == 0) 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=map[i]; 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (map[j] == map[i]) 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=0; 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (remap_needed) 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Remap pixels. 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=GetAuthenticIndexQueue(image); 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=(int) pixels[x]; 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels[x]=map[j]; 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < new_number_colors; i++) 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i]=colormap[i]; 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) new_number_colors; 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) RelinquishMagickMemory(map); 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s G r a y % 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsGrayImage except does not change DirectClass to PseudoClass % 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsGray(Image *image) 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s M o n o c h r o m e % 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and is more accurate. % 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsMonochrome(Image *image) 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((IsGray(image->colormap+i) == MagickFalse) || 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->colormap[i].red != 0) && 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colormap[i].red != (Quantum) QuantumRange))) 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 914c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1026c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#if (PNG_LIBPNG_VER > 10011) 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic size_t WriteBlobMSBULong(Image *image,const unsigned long value) 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 10583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing %c%c%c%c chunk, length: %lu", 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],(unsigned long) length); 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1075c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1081c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#if PNG_LIBPNG_VER > 10011 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 11873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Expected %lu bytes; found %lu bytes",(unsigned long) length, 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) check); 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) WriteBlob(image,(unsigned long) length,data); 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) a->colors; i++) 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 13453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 13523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 13533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 13543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 13893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 13913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 13923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 13933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 13943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=(long) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=(long) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 14093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 14133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 14143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 14233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 14253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read two longs from CLON, MOVE or PAST chunk 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic long mng_get_long(unsigned char *p) 14383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14563ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING, 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message); 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 14693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 14853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 14873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 14923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 14983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 15023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 15043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 15063ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 15073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 15083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 15103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 15293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 15393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 1540f2f2727f17ecbb23d902f70bb98f81faabc92dbdcristy length=(png_uint_32) StringToLong(sp); 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 15443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 15523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 15553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 15613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) nibbles; i++) 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 15753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 15973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 16083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 16103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 16153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 16163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 16183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=(unsigned long) ((chunk->data[0] << 24) | 16203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 16213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=(unsigned long) ((chunk->data[4] << 24) | 16223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 16233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 16253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 16263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 16283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 16303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 16353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 16483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 16513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 16543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 16563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 16653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 16663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 16673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 16683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 16703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 16713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 1676c11cf6a442f3046940608a5743a68cc891deb13eglennrp pass, 1677c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth, 1678c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type, 1679c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_interlace_method, 1680c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_compression_method, 1681cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_filter_method, 1682cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans; 16833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 16853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 16863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1690cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp png_bytep 1691cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_alpha; 1692cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 1693cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp png_color_16p 1694cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background, 1695cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_color; 1696cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 16973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 16983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 16993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 17003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1704c11cf6a442f3046940608a5743a68cc891deb13eglennrp png_uint_32 1705c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_height, 1706c451207335b7a8bb4e44f904f3d65a2727e41214glennrp ping_info_width, 1707c451207335b7a8bb4e44f904f3d65a2727e41214glennrp ping_rowbytes; 1708c11cf6a442f3046940608a5743a68cc891deb13eglennrp 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 17143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 17163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 17173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 17223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 17253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 17263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 17283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 17383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 17393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 17413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 17423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 17443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 17453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 17463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 17473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 17483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 17493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 17503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 17533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 17543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1756f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 17573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10007) 17603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 17613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 17623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 17633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 176561b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 176661b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 176761b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 176861b4c957269727a0a2526edc2331881da8346100glennrp { 176961b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 177061b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 177161b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 177261b4c957269727a0a2526edc2331881da8346100glennrp } 177361b4c957269727a0a2526edc2331881da8346100glennrp# endif 177461b4c957269727a0a2526edc2331881da8346100glennrp#endif 177561b4c957269727a0a2526edc2331881da8346100glennrp 177661b4c957269727a0a2526edc2331881da8346100glennrp 1777ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 17783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 17793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 17853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 17943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 17953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 18003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 18013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 18033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 18043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 18063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 18073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 18103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 18113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 18123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1813f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 18183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 18197b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 18207b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 18217b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 18227b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1828c451207335b7a8bb4e44f904f3d65a2727e41214glennrp 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 18423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 18533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 18543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 18553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 18563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 18573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1862991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp#if (PNG_LIBPNG_VER < 10400) 1863991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 1864991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 18673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 18723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 18733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 18743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 18753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 18763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 18773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1878991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp# endif 18793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 1882c11cf6a442f3046940608a5743a68cc891deb13eglennrp 1883c11cf6a442f3046940608a5743a68cc891deb13eglennrp png_get_IHDR(ping,ping_info,&ping_info_width,&ping_info_height, 1884c11cf6a442f3046940608a5743a68cc891deb13eglennrp &ping_info_bit_depth,&ping_info_color_type, 1885c11cf6a442f3046940608a5743a68cc891deb13eglennrp &ping_info_interlace_method,&ping_info_compression_method, 1886c11cf6a442f3046940608a5743a68cc891deb13eglennrp &ping_info_filter_method); 1887c11cf6a442f3046940608a5743a68cc891deb13eglennrp 1888cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_info_num_trans, 1889cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp &ping_trans_color); 1890cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 1891cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp (void) png_get_bKGD(ping, ping_info, &ping_background); 1892cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 1893c451207335b7a8bb4e44f904f3d65a2727e41214glennrp ping_rowbytes=png_get_rowbytes(ping,ping_info); 1894c451207335b7a8bb4e44f904f3d65a2727e41214glennrp 1895c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < 8) 18963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1897c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE)) 18983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 18993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1900c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->depth=ping_info_bit_depth; 19013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 1902c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->interlace=ping_info_interlace_method != 0 ? PNGInterlace : NoInterlace; 19033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG width: %lu, height: %lu", 1907c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_width, ping_info_height); 19083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color_type: %d, bit_depth: %d", 1910c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type, ping_info_bit_depth); 19113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG compression_method: %d", 1913c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_compression_method); 19143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG interlace_method: %d, filter_method: %d", 1916c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_interlace_method,ping_info_filter_method); 19173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) && defined(PNG_READ_iCCP_SUPPORTED) 19209f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_iCCP)) 19213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression; 19243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 19263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy info, 19273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name; 19283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 19303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_length; 19313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, 19333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &profile_length); 19343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile_length != 0) 19353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 19373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 19383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG iCCP chunk."); 19423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(profile_length); 19433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetStringInfoDatum(profile,(const unsigned char *) info); 19443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,"icc",profile); 19453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 19463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sRGB_SUPPORTED) 19503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intent; 19533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_srgb) 19553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) 19563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->global_srgb_intent+1); 19573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_sRGB(ping,ping_info,&intent)) 19583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (intent+1); 19603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG sRGB chunk: rendering_intent: %d",intent+1); 19633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy double 19683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy file_gamma; 19693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 197062ff42431eb077e309a72d0aefefe059f180c4baglennrp if (!png_get_gAMA(ping,ping_info,&file_gamma)) 197162ff42431eb077e309a72d0aefefe059f180c4baglennrp if (mng_info->have_global_gama) 197262ff42431eb077e309a72d0aefefe059f180c4baglennrp png_set_gAMA(ping,ping_info,mng_info->global_gamma); 19733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_gAMA(ping,ping_info,&file_gamma)) 19743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=(float) file_gamma; 19763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG gAMA chunk: gamma: %f",file_gamma); 19793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 198162ff42431eb077e309a72d0aefefe059f180c4baglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 198262ff42431eb077e309a72d0aefefe059f180c4baglennrp { 198362ff42431eb077e309a72d0aefefe059f180c4baglennrp if (mng_info->have_global_chrm != MagickFalse) 198462ff42431eb077e309a72d0aefefe059f180c4baglennrp { 198562ff42431eb077e309a72d0aefefe059f180c4baglennrp (void) png_set_cHRM(ping,ping_info, 198662ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.white_point.x, 198762ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.white_point.y, 198862ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.red_primary.x, 198962ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.red_primary.y, 199062ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.green_primary.x, 199162ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.green_primary.y, 199262ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.blue_primary.x, 199362ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_chrm.blue_primary.y); 199462ff42431eb077e309a72d0aefefe059f180c4baglennrp } 199562ff42431eb077e309a72d0aefefe059f180c4baglennrp } 19969f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) 19973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_cHRM(ping,ping_info, 19993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.x, 20003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.y, 20013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.x, 20023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.y, 20033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.x, 20043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.y, 20053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.x, 20063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.y); 20073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG cHRM chunk."); 20103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent) 20123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 201362ff42431eb077e309a72d0aefefe059f180c4baglennrp png_set_sRGB(ping,ping_info,image->rendering_intent-1); 201462ff42431eb077e309a72d0aefefe059f180c4baglennrp png_set_gAMA(ping,ping_info,0.45455f); 201562ff42431eb077e309a72d0aefefe059f180c4baglennrp png_set_cHRM(ping,ping_info, 201662ff42431eb077e309a72d0aefefe059f180c4baglennrp 0.6400f, 0.3300f, 0.3000f, 0.6000f, 201762ff42431eb077e309a72d0aefefe059f180c4baglennrp 0.1500f, 0.0600f, 0.3127f, 0.3290f); 20183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 20209f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) 20213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=png_get_x_offset_pixels(ping, ping_info); 20233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=png_get_y_offset_pixels(ping, ping_info); 20243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 20263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG oFFs chunk: x: %ld, y: %ld.",image->page.x, 20283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y); 20293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 203262ff42431eb077e309a72d0aefefe059f180c4baglennrp if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 203362ff42431eb077e309a72d0aefefe059f180c4baglennrp { 203462ff42431eb077e309a72d0aefefe059f180c4baglennrp if (mng_info->have_global_phys) 203562ff42431eb077e309a72d0aefefe059f180c4baglennrp { 203662ff42431eb077e309a72d0aefefe059f180c4baglennrp png_set_pHYs(ping,ping_info, 203762ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_x_pixels_per_unit, 203862ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_y_pixels_per_unit, 203962ff42431eb077e309a72d0aefefe059f180c4baglennrp mng_info->global_phys_unit_type); 204062ff42431eb077e309a72d0aefefe059f180c4baglennrp } 204162ff42431eb077e309a72d0aefefe059f180c4baglennrp } 204262ff42431eb077e309a72d0aefefe059f180c4baglennrp 20439f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) 20443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 20473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 20493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 20503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 20513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image resolution. 20543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, 20563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &unit_type); 20573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(float) x_resolution; 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(float) y_resolution; 20593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 20603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 20623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 20633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 20643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG pHYs chunk: xres: %lu, yres: %lu, units: %d.", 20683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, y_resolution, unit_type); 20693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20719f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 20723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 20753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 20773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 20783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 20803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((number_colors == 0) && 2081c11cf6a442f3046940608a5743a68cc891deb13eglennrp ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE)) 20823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte_length) 20843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,mng_info->global_plte, 20863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_plte_length); 20879f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 20883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length) 20893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length > 20913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length) 20923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 20933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 20943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "global tRNS has more entries than global PLTE", 20953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 20963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_tRNS(ping,ping_info,mng_info->global_trns, 20973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_trns_length,NULL); 20983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 21003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ( 21013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 21023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index || 21033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21049f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 21053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 21073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 21083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 21103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_saved_bkgd_index) 21113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=mng_info->saved_bkgd_index; 21123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2113cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (png_get_valid(ping, ping_info, PNG_INFO_bKGD)) 2114cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp background.index=ping_background->index; 21153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 21163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].red; 21173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 21183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].green; 21193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 21203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].blue; 21213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 21223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 21273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No global PLTE in file","`%s'", 21283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 21293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 21339f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (mng_info->have_global_bkgd && 21349f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp (!png_get_valid(ping,ping_info,PNG_INFO_bKGD))) 21353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_info->mng_global_bkgd; 21369f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) 21373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image background color. 21403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG bKGD chunk."); 2144c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth <= MAGICKCORE_QUANTUM_DEPTH) 21453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2146cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp image->background_color.red=ping_background->red; 2147cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp image->background_color.green=ping_background->green; 2148cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp image->background_color.blue=ping_background->blue; 21493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 2153cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ScaleShortToQuantum(ping_background->red); 21543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 2155cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ScaleShortToQuantum(ping_background->green); 21563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 2157cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ScaleShortToQuantum(ping_background->blue); 21583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 21623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 21633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 21643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 21659f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 21663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 21693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 21713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 21723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 21763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2177c11cf6a442f3046940608a5743a68cc891deb13eglennrp max_sample = (1 << ping_info_bit_depth) - 1; 21783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2179c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((ping_info_color_type == PNG_COLOR_TYPE_GRAY && 21803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)ping_info->trans_color.gray > max_sample) || 2181c11cf6a442f3046940608a5743a68cc891deb13eglennrp (ping_info_color_type == PNG_COLOR_TYPE_RGB && 21823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int)ping_info->trans_color.red > max_sample || 21833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)ping_info->trans_color.green > max_sample || 21843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)ping_info->trans_color.blue > max_sample))) 21853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 21893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10007) 21903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) RelinquishMagickMemory( 21913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha); 21923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 21933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 21943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 21953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 21973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red= (Quantum)(ping_info->trans_color.red); 22013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green= (Quantum) (ping_info->trans_color.green); 22023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue= (Quantum) (ping_info->trans_color.blue); 22033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity= (Quantum) (ping_info->trans_color.gray); 2204c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 22053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2206c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < 8) 22073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=(Quantum) ((( 22093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray)*255)/max_sample); 22103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 22123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 22133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 22143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 22183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 22193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22209f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) 22213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 22223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 22253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 22263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 22283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 2230c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->image_box.right=(long) ping_info_width; 22313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 2232c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->image_box.bottom=(long) ping_info_height; 22333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 22343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2235c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->mng_width=ping_info_width; 2236c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->mng_height=ping_info_height; 22373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 22383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 22393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 22433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 2245c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->columns=ping_info_width; 2246c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->rows=ping_info_height; 2247c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) || 2248c11cf6a442f3046940608a5743a68cc891deb13eglennrp ((int) ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 2249c11cf6a442f3046940608a5743a68cc891deb13eglennrp ((int) ping_info_color_type == PNG_COLOR_TYPE_GRAY)) 22503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 2252c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colors=1UL << ping_info_bit_depth; 22533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 22543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 22553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 22563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 22593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2260c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 22613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) number_colors; 22703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 22733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 22773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 22803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 22823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 2283c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 22843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 22953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 22973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 23023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 23033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2304c11cf6a442f3046940608a5743a68cc891deb13eglennrp scale=(QuantumRange/((1UL << ping_info_bit_depth)-1)); 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 23073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 23103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 23123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 23173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 23193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 23203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->number_scenes != 0) && (mng_info->scenes_found > (long) 23213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->first_scene+image_info->number_scenes))) 23223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping PNG image data for scene %ld", 23263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 23273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2329f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 23343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 23393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 2341c451207335b7a8bb4e44f904f3d65a2727e41214glennrp ping_rowbytes*sizeof(*png_pixels)); 23423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2343c451207335b7a8bb4e44f904f3d65a2727e41214glennrp png_pixels=(unsigned char *) AcquireQuantumMemory(ping_rowbytes, 23443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 23453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 23463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 23503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 23523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 23573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2360f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 23613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 23633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 23643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 23653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 23663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 23693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 23707b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy { 23717b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy InheritException(exception,&image->exception); 23727b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy image->columns=0; 23737b755eb4f94efbb57160cce0d7afe7f8ed4ef066cristy } 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2376ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2377ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2378ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 23803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 23813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 23843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2389c11cf6a442f3046940608a5743a68cc891deb13eglennrp depth=(long) ping_info_bit_depth; 23903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2391c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->matte=(((int) ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 2392c11cf6a442f3046940608a5743a68cc891deb13eglennrp ((int) ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 23939f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? 23949f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp MagickTrue : MagickFalse; 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2399c451207335b7a8bb4e44f904f3d65a2727e41214glennrp row_offset=ping_rowbytes*y; 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 24023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2403abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 24053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 24073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 24083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 24113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 24123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 24143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 2415c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24219f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) && 24223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 24233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2431c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_RGB) 24323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24339f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 24433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 24453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 24473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2464c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (4*image->columns); x != 0; x--) 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2470c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (2*image->columns); x != 0; x--) 24723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2477c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (depth == 8 && ping_info_color_type == PNG_COLOR_TYPE_GRAY) 24783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 2480c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY || 2481c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2487c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (depth == 8 && ping_info_color_type == PNG_COLOR_TYPE_RGB) 24883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 2490c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_RGB || 2491c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 24963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2497c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 24983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 25003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 2501c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_GRAY) 25023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 2504c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if ((int) ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 25053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 2507c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if ((int) ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 25083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 2510c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 25113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 25133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 25163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 25177a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes == 1)) 25187a287bfadeadea12e47c2376ca78a5d101687142cristy { 25197a287bfadeadea12e47c2376ca78a5d101687142cristy status=SetImageProgress(image,LoadImageTag,y,image->rows); 25207a287bfadeadea12e47c2376ca78a5d101687142cristy if (status == MagickFalse) 25217a287bfadeadea12e47c2376ca78a5d101687142cristy break; 25227a287bfadeadea12e47c2376ca78a5d101687142cristy } 25233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 25243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25267a287bfadeadea12e47c2376ca78a5d101687142cristy if ((image->previous == (Image *) NULL) && (num_passes != 1)) 25273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 25353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2545c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->matte=ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 2554c451207335b7a8bb4e44f904f3d65a2727e41214glennrp row_offset=ping_rowbytes*y; 25553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 25573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 25583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 25593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 25623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 25633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 2564c11cf6a442f3046940608a5743a68cc891deb13eglennrp switch (ping_info_bit_depth) 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 25673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 25703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-7; x > 0; x-=8) 25723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= (long) (8-(image->columns % 8)); bit--) 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-3; x > 0; x-=4) 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 25893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 25913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 25923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=3; i >= (long) (4-(image->columns % 4)); i--) 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 26013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x > 0; x-=2) 26033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 26053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 26063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 26083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 26093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2613c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == 4) 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 26233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 26363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2646c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == 4) 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 26513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 26543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 26573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 2666c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == 4) 26673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 267046f08209f719f4adeea742c45873c2714e80cdb9cristy q->opacity=(Quantum) GetAlphaPixelComponent(q); 26713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 2677c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == 4) 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 26893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 26933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 26953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 26963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices[x]=(*r++); 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); 27163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 27173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 27183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 27213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) image_info->first_scene && image->delay != 0) 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 27253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2728f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27359f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) 27363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 27383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 27393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 27423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 27443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 2745c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2746c11cf6a442f3046940608a5743a68cc891deb13eglennrp#if 1 /* balfour fix */ 2747c11cf6a442f3046940608a5743a68cc891deb13eglennrp/* From imagemagick discourse server, 5 Feb 2010 */ 2748c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2749c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (storage_class == PseudoClass) 2750c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2751c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 2752c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2753cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp for (x=0; x < ping_info_num_trans; x++) 2754c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2755c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = ScaleCharToQuantum((unsigned char)(255-ping_info->trans_alpha[x])); 2756c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2757c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2758c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 2759c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2760c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (x=0; x < (int) image->colors; x++) 2761c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2762c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (image->colormap[x].red == transparent_color.opacity) 2763c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2764c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->colormap[x].opacity = (Quantum) TransparentOpacity; 2765c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2766c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2767c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2768c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2769c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2770c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2771c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2772c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (y=0; y < (long) image->rows; y++) 2773c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2774c11cf6a442f3046940608a5743a68cc891deb13eglennrp image->storage_class=storage_class; 2775c11cf6a442f3046940608a5743a68cc891deb13eglennrp q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 2776c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (q == (PixelPacket *) NULL) 2777c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2778c11cf6a442f3046940608a5743a68cc891deb13eglennrp indices=GetAuthenticIndexQueue(image); 2779c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2780c11cf6a442f3046940608a5743a68cc891deb13eglennrp for (x=(long) image->columns-1; x >= 0; x--) 2781c11cf6a442f3046940608a5743a68cc891deb13eglennrp { 2782c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ScaleQuantumToChar(q->red) == transparent_color.red && 2783c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->green) == transparent_color.green && 2784c11cf6a442f3046940608a5743a68cc891deb13eglennrp ScaleQuantumToChar(q->blue) == transparent_color.blue) 2785c11cf6a442f3046940608a5743a68cc891deb13eglennrp q->opacity=(Quantum) TransparentOpacity; 2786c11cf6a442f3046940608a5743a68cc891deb13eglennrp else 2787c11cf6a442f3046940608a5743a68cc891deb13eglennrp SetOpacityPixelComponent(q,OpaqueOpacity); 2788c11cf6a442f3046940608a5743a68cc891deb13eglennrp q++; 2789c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2790c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (SyncAuthenticPixels(image,exception) == MagickFalse) 2791c11cf6a442f3046940608a5743a68cc891deb13eglennrp break; 2792c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2793c11cf6a442f3046940608a5743a68cc891deb13eglennrp } 2794c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2795c11cf6a442f3046940608a5743a68cc891deb13eglennrp#else /* not balfour */ 2796c11cf6a442f3046940608a5743a68cc891deb13eglennrp 2797c11cf6a442f3046940608a5743a68cc891deb13eglennrp 27983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 27993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 28013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 28023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 28033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 28053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 28073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 28103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2811c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 28123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 28133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket=indices[x]; 2815cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (indexpacket < ping_info_num_trans) 28163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (255-ping_info->trans_alpha[(long) indexpacket])); 28183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2819ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2822c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 28233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 28243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket=indices[x]; 28263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=image->colormap[(long) indexpacket].red; 28273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 28283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 28293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->red == transparent_color.opacity) 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2832ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 28383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ScaleQuantumToChar(q->red) == transparent_color.red && 28403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->green) == transparent_color.green && 28413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->blue) == transparent_color.blue) 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2844ce70c17bb6433add2eb069515a4f3105989e0662cristy SetOpacityPixelComponent(q,OpaqueOpacity); 28453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2850c11cf6a442f3046940608a5743a68cc891deb13eglennrp#endif /* not balfour */ 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->depth > 8) 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) num_text; i++) 28593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 28653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 28673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 28703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 28713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 28733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 28743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 28803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 28853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 28923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 28943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 28983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 290390823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(MngBuffer)); 29043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 29123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 29273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 29293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 29303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 29323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 29343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 2936c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_width > 250000L || ping_info_height > 250000L) 29373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 2938c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->width=ping_info_width; 2939c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->height=ping_info_height; 2940c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->color_type=ping_info_color_type; 2941c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->sample_depth=ping_info_bit_depth; 2942c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->interlace_method=ping_info_interlace_method; 2943c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->compression_method= 2944c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_compression_method; 2945c11cf6a442f3046940608a5743a68cc891deb13eglennrp mng_info->ob[object_id]->filter_method=ping_info_filter_method; 29469f2d324dcf6661f13b8b06f1e580cf3c7e49a446glennrp if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) 29473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 29503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 29523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2976f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 29893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 303590823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 30533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading JNG chunk type %c%c%c%c, length: %lu", 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_width: %16lu",jng_width); 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_width: %16lu",jng_height); 32903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 333290823213d62b0ba18557e61f1e6892c6fffd6cd4cristy color_image_info=(ImageInfo *)AcquireAlignedMemory(1,sizeof(ImageInfo)); 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 335290823213d62b0ba18557e61f1e6892c6fffd6cd4cristy AcquireAlignedMemory(1,sizeof(ImageInfo)); 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,(unsigned long) length); 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=((float) mng_get_long(p))*0.00001; 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (p[0]+1); 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_get_long(p); 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_get_long(&p[4]); 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) mng_get_long(p); 35533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) mng_get_long(&p[4]); 35543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 36133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 36713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 380090823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(*mng_info)); 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 39633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 39663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 397290823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 39733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 40023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading MNG chunk type %c%c%c%c, length: %lu", 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG width: %lu",mng_info->mng_width); 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG height: %lu",mng_info->mng_height); 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=(unsigned long) mng_get_long(p); 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=(unsigned long) mng_get_long(p); 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(page_geometry,MaxTextExtent,"%lux%lu+0+0", 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.right=(long) mng_info->mng_width; 41543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.bottom=(long) mng_info->mng_height; 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=(png_uint_32) mng_get_long(&p[2]); 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 41753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " final_delay=%ld",final_delay); 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->iterations=%ld",image->iterations); 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 42263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[object_id]=(long) ((p[4] << 24) | (p[5] << 16) | 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[object_id]=(long) ((p[8] << 24) | (p[9] << 16) | 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " x_off[%d]: %lu",object_id,mng_info->x_off[object_id]); 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " y_off[%d]: %lu",object_id,mng_info->y_off[object_id]); 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 42723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) (length/3); i++) 43043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 43063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=length/3; 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns_length=length; 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma=mng_get_long(p); 43503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 43673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 43683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[12]); 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[16]); 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[20]); 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[24]); 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[28]); 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_srgb_intent=(RenderingIntent) (p[0]+1); 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 44303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*p && ((p-chunk) < (long) length)) 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p-chunk) < (long) (length-4)) 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=(1UL*image->ticks_per_second* 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_delay=%ld",frame_delay); 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=(1UL*image->ticks_per_second* 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_timeout=%ld",frame_timeout); 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Frame_clipping: L=%ld R=%ld T=%ld B=%ld", 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb.left, fb.right,fb.top,fb.bottom); 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=(unsigned long) (mng_info->clip.right 44883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 44893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=(unsigned long) (mng_info->clip.bottom 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " subframe_width=%lu, subframe_height=%lu", 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width, subframe_height); 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 45203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 45993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < (long) length; j+=2) 46023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(long) first_object; i <= (long) last_object; i++) 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long loop_iters=1; 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iters=mng_get_long(&chunk[1]); 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " LOOP level %ld has %ld iterations ",loop_level,loop_iters); 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " ENDL: LOOP level %ld has %ld remaining iterations ", 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level,mng_info->loop_count[loop_level]); 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 47293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 47533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(p); 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(&p[4]); 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 48973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width=(unsigned long) mng_get_long(p); 49633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height=(unsigned long) mng_get_long(&p[4]); 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.right < (long) mng_info->mng_width) || 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.bottom < (long) mng_info->mng_height)) 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted transparent background layer, W=%lud, H=%lud", 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,-((long) length+12),SEEK_CUR); 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 51503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-2)*(mng_info->magn_mx); 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=image->columns; 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-3)*(mng_info->magn_mx-1); 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-2)*(mng_info->magn_my); 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=image->rows; 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 51993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-3)*(mng_info->magn_my-1); 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 52123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 52653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the rows to %lu",large_image->rows); 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 53023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 53053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-2) 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy <= 1 && y == (long) image->rows-1) 53233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-1) 53253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_my; 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y < (long) image->rows-1) 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(yy < (long) large_image->rows); 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: get color as function of indices[x] */ 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) (((long) (2*i*((*n).red 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m))/((long) (m*2)) 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) (((long) (2*i*((*n).green 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green)+m))/((long) (m*2)) 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) (((long) (2*i*((*n).blue 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m))/((long) (m*2)) 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).opacity); 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) (2*i*((*n).opacity 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m))/((long) (m*2)) 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the columns to %lu",image->columns); 54333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (image->columns-length); 54433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x < (long) image->columns; x++) 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x == (long) (image->columns-length)) 54463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_ml; 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-2) 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 54493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx <= 1 && x == (long) image->columns-1) 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-1) 54523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mx; 54553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).red); 54723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +m)/((long) (m*2))+(*pixels).green); 54753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).blue); 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)/((long) (m*2)) 54813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 54993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m) /((long) (m*2)) 55043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 55103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.width=(unsigned long) (crop_box.right-crop_box.left); 55813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.height=(unsigned long) (crop_box.bottom-crop_box.top); 55823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->background_color.red >> 8) & 56363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.red & 0xff)) && 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.green >> 8) & 0xff) 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.green & 0xff)) && 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.blue >> 8) & 0xff) 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.blue & 0xff))); 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (indx=0; indx < (long) image->colors; indx++) 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->colormap[indx].red >> 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].red & 0xff)) && 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].green >> 8) & 0xff) 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].green & 0xff)) && 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].blue >> 8) & 0xff) 56543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].blue & 0xff))); 56553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->red >> 8) & 0xff) == 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->red & 0xff)) && 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->green >> 8) & 0xff) == 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->green & 0xff)) && 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->blue >> 8) & 0xff) == 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->blue & 0xff)) && 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->opacity >> 8) & 0xff) == 56843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->opacity & 0xff))))); 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) (image_info->first_scene+image_info->number_scenes)) 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 57133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 57333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 57713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->delay=%lu, final_delay=%lu",image->delay,final_delay); 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu",image->delay); 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu",++scene,image->delay); 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu dispose=%d",image->delay,(int) image->dispose); 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu dispose=%d",++scene, 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay,(int) image->dispose); 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* PNG_LIBPNG_VER > 95 */ 59183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* PNG_LIBPNG_VER > 95 */ 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned long RegisterPNGImage(void) 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport unsigned long RegisterPNGImage(void) 59573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 59743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 59753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 60793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 608018b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 608118b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 608218b17443128598500357da7bff2f01683cf32890cristy#endif 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6114514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy if (png_semaphore != (SemaphoreInfo *) NULL) 6115514e9e77a37d27ed811aca06ea6c300bc06cc1f2cristy DestroySemaphoreInfo(&png_semaphore); 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER > 95 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 61463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 61803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 61853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 99 && PNG_LIBPNG_VER < 10007) 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* This function became available in libpng version 1.0.6g. */ 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size) 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_ptr->zbuf) 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(png_ptr, png_ptr->zbuf); png_ptr->zbuf=NULL; 62053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr->zbuf_size=(png_size_t) size; 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr->zbuf=(png_bytep) png_malloc(png_ptr, size); 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_ptr->zbuf == 0) 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Unable to allocate zbuf"); 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 62133ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 62143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 62153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER <= 10005) 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("Not "); 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info=image_info; 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=ping; 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=ping_info; 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_type=profile_type; 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_description=profile_description; 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_data=profile_data; 62473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=length; 62483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 62533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("writing raw profile: type=%s, length=%lu\n", 62553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) profile_type, length); 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_size_t) (dp-text[0].text),"%8lu ",length); 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 62923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 62933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 63153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 63233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 63253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 63273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 63313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 63323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 63333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 63343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 63353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 63363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 63373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 63423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 63433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63443ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 63453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 63493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 63503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 63523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 63533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 63543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 63553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 63613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 63623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 6363cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp pass; 6364cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6365cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp png_bytep 6366cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_alpha; 63673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 63693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 63703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6371cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp png_color_16 6372cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background, 6373cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_color; 6374cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 63753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 63793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 63803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6381c11cf6a442f3046940608a5743a68cc891deb13eglennrp png_uint_32 6382c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_height, 6383c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_width; 6384c11cf6a442f3046940608a5743a68cc891deb13eglennrp 63853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 63863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 63873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 63893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 63903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 63923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 63933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 63953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 63963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 63983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 63993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 64003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 64023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 64033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 64053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 64063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 64073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6408cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp volatile int 6409cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_bit_depth, 6410cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_color_type, 6411cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_interlace_method, 6412cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_compression_method, 6413cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_filter_method, 6414cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans; 6415cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 64163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 64173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 6418cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp image_depth, 6419cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp old_bit_depth; 64203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 64223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 64233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 64243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 64253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 64273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 64283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6430f84a193d5f435588cd78d521fff3f1f852e227f8cristy LockSemaphoreInfo(png_semaphore); 64313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6433cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp /* Initialize some stuff */ 6434cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_bit_depth=0, 6435cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_color_type=0, 6436cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_interlace_method=0, 6437cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_compression_method=0, 6438cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_filter_method=0, 6439cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans = 0; 6440cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6441cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.red = 0; 6442cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.green = 0; 6443cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.blue = 0; 6444cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.gray = 0; 6445cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.index = 0; 6446cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6447cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_color.red=0; 6448cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_color.green=0; 6449cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_color.blue=0; 6450cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_color.gray=0; 6451cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6452cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_trans_alpha = NULL; 6453cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp 6454ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 64553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 64573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 64583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 6462057310ded72df25c84f1ad647129a95c1f1753e3cristy image_colors <= 256 && !IsOpaqueImage(image,&image->exception); 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 64673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 64693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 64703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 64713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 64723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 64733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 64743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 64753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 64773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 64793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 64803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 64823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 64833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 64853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 64863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 64883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 64913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 64933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 64943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6498f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 64993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 65013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 65093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 65113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 65123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 65133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 6515c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_width=image->columns; 6516c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_height=image->rows; 65173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 65183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 65193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 65203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 65213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 65223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 65233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 65253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6531c11cf6a442f3046940608a5743a68cc891deb13eglennrp " width=%lu",ping_info_width); 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6533c11cf6a442f3046940608a5743a68cc891deb13eglennrp " height=%lu",ping_info_height); 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_matte=%u",image->matte); 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth=%lu",image->depth); 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " requested PNG image_depth=%lu",image->depth); 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 6542c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=(png_byte) save_image_depth; 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 65493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 65513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 65523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 65533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 65653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 65673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 65693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 65713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 65763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 65893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 65993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 66003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 66013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 66073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 66093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 66283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6629c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 6630c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=8; 6631c11cf6a442f3046940608a5743a68cc891deb13eglennrp image_depth=ping_info_bit_depth; 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 66353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 66373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 66383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 66413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors quantized to %ld",number_colors); 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_tRNS; 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6663c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 66643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_PLTE; 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 666998156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 66733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 667898156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 667998156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 66813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 66883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 66903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i,palette[i].red,palette[i].green,palette[i].blue); 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 67033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) 67043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 67053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 6706c11cf6a442f3046940608a5743a68cc891deb13eglennrp image_depth=ping_info_bit_depth; 6707cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=0; 67083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 67113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 67123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 67153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) AcquireQuantumMemory( 67173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors,sizeof(*ping_info->trans_alpha)); 6718a58299c3f51696bac0bef0ca0ff131054b78f46fglennrp if (ping_info->trans_alpha == (unsigned char *) NULL) 67193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 67213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 67223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 67233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha[i]=255; 67243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 67253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 67263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 67283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 67293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 67313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 67343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 67353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 67373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices[x]=(IndexPacket) (number_colors-1); 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha[(long) indices[x]]=(png_byte) (255- 6740ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 67433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 67453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->trans_alpha[i] != 255) 6749cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=(unsigned short) (i+1); 6750cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (ping_info_num_trans == 0) 67513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 67523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!(ping_info->valid & PNG_INFO_tRNS)) 6753cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=0; 6754cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (ping_info_num_trans == 0) 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(ping_info->trans_alpha); 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 67603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 6762cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 67633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6764cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.index=(png_byte) i; 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 67673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 67693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 6774c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 67773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 6779c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6783c11cf6a442f3046940608a5743a68cc891deb13eglennrp image_depth=ping_info_bit_depth; 67843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6786c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) mng_info->write_png_colortype-1; 6787c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 6788c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 67893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 67903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 6796c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) ((matte == MagickTrue)? 67973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 67983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 67993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6800c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_RGB; 68013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 68043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6805c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 68063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 68103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 68123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6813c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 68143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 68183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 68203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6821c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 68223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 68233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6827c11cf6a442f3046940608a5743a68cc891deb13eglennrp "Selected PNG colortype=%d",ping_info_color_type); 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6829c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < 8) 68303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6831c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 6832c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type == PNG_COLOR_TYPE_RGB || 6833c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 6834c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=8; 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6837c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 68383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 68423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6843c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=1; 6844c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < (int)mng_info->write_png_depth) 6845c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth = mng_info->write_png_depth; 68463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6849c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 68503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6851c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=1; 6852c11cf6a442f3046940608a5743a68cc891deb13eglennrp while ((int) (1 << ping_info_bit_depth) < (long) image_colors) 6853c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth <<= 1; 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",image_colors); 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6860c11cf6a442f3046940608a5743a68cc891deb13eglennrp " Tentative PNG bit depth: %d",ping_info_bit_depth); 68613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 68633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6864c11cf6a442f3046940608a5743a68cc891deb13eglennrp old_bit_depth=ping_info_bit_depth; 6865c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < (int)mng_info->write_png_depth) 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6867c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth = mng_info->write_png_depth; 6868c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth > 8) 6869c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth = 8; 6870c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth != (int) old_bit_depth) 68713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors increased to %ld",image_colors); 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6880c11cf6a442f3046940608a5743a68cc891deb13eglennrp image_depth=ping_info_bit_depth; 68813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 68823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6884c11cf6a442f3046940608a5743a68cc891deb13eglennrp " Tentative PNG color type: %d",ping_info_color_type); 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_info->type: %d",image_info->type); 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth: %lu",image_depth); 68893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 6890c11cf6a442f3046940608a5743a68cc891deb13eglennrp " ping_info_bit_depth: %d",ping_info_bit_depth); 68913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 68963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 68983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 6899c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 69033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 69063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 69083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6909c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 69193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 69213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 69283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 69303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((y == (long) image->rows) && (x == (long) image->columns)) 69333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No transparent pixels are present. Change 4 or 6 to 0 or 2, 69363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and do not set the PNG_INFO_tRNS flag in ping_info->valid. 69373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 6939c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type&=0x03; 69403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 69443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 69453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 6947c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth == 8) 69483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 6949c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth == 4) 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 6951c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth == 2) 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 6953c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth == 1) 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_tRNS; 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.red=(png_uint_16) 6957ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetRedPixelComponent(p)) & mask); 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.green=(png_uint_16) 6959ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetGreenPixelComponent(p)) & mask); 69603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.blue=(png_uint_16) 6961ce70c17bb6433add2eb069515a4f3105989e0662cristy (ScaleQuantumToShort(GetBluePixelComponent(p)) & mask); 69623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray=(png_uint_16) 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.index=(png_byte) 696546f08209f719f4adeea742c45873c2714e80cdb9cristy (ScaleQuantumToChar((Quantum) (GetAlphaPixelComponent(p)))); 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 69683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 69713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 69743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 69783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 69793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 69813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 69833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsPNGColorEqual(ping_info->trans_color,*p) == 0) 69853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 69883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 69903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 69933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsPNGColorEqual(ping_info->trans_color,*p)) 69983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 69993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 70033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 70083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7012c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 70143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.red&=0xff; 70163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.green&=0xff; 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.blue&=0xff; 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray&=0xff; 70193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 70233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 70263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 70273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 7030c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 70313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7033c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=PNG_COLOR_TYPE_GRAY; 70343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray*=0x0101; 70363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 70403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=1 << image_depth; 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 7042c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=16; 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7045c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=8; 7046c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) 70473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 70493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7050c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=1; 7051c11cf6a442f3046940608a5743a68cc891deb13eglennrp while ((int) (1 << ping_info_bit_depth) 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < (long) image_colors) 7053c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth <<= 1; 70543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7056c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (mng_info->optimize && ping_info_color_type == 70573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 70623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 70633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 70653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 70663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image_colors; i++) 70683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 70703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 70713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 70773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 70803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 7082c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=1; 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 7084c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=2; 70853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 7086c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=4; 70873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7089c11cf6a442f3046940608a5743a68cc891deb13eglennrp image_depth=ping_info_bit_depth; 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 70973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_tRNS; 71023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 71043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7105c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 71063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_PLTE; 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,NULL,0); 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up empty PLTE chunk"); 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 71243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 712698156a3a465a004545e39434c63052b955a74d1cglennrp number_colors=image->colors; 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 71303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 71323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 71343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 71353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 71383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 71393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 714398156a3a465a004545e39434c63052b955a74d1cglennrp " Setting up PLTE chunk with %d colors", 714498156a3a465a004545e39434c63052b955a74d1cglennrp (int) number_colors); 71453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) 71473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 71483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 71493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 71513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=1; 71543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while ((1UL << ping_info->bit_depth) < number_colors) 7155c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth <<= 1; 71563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7157cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=0; 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 71613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 71653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 71683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *packet_indices; 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 71743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 71763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 71803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 71823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_indices=GetVirtualIndexQueue(image); 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 71903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 71913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index=packet_indices[x]; 71933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert((unsigned long) packet_index < number_colors); 71943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != 256) 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != (png_byte) (255- 7197ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p)))) 71983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7199c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type=(png_byte) 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[(long) packet_index]=(png_byte) (255- 7205ce70c17bb6433add2eb069515a4f3105989e0662cristy ScaleQuantumToChar(GetOpacityPixelComponent(p))); 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 72083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7209c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((int) ping_info_color_type == PNG_COLOR_TYPE_RGB_ALPHA) 72103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7211cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=0; 72123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 72133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_PLTE); 72143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 72163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 72193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 72203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ping_info->valid & PNG_INFO_tRNS)) 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 72253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 72273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 72283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 7229cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=(unsigned short) (i+1); 72303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7232cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (ping_info_num_trans == 0) 72333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!(ping_info->valid & PNG_INFO_tRNS)) 7235cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_info_num_trans=0; 7236cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (ping_info_num_trans != 0) 72373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) AcquireQuantumMemory( 72393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors,sizeof(*ping_info->trans_alpha)); 72403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->trans_alpha == (unsigned char *) NULL) 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 72423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 72443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha[i]=(png_byte) trans[i]; 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 7252cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp if (IsPNGColorEqual(ping_background,image->colormap[i])) 72533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7254cecd5765c41f64cc68d4a5d77bb4afe92707a49eglennrp ping_background.index=(png_byte) i; 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 72623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.red*=0x0101; 72643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.green*=0x0101; 72653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.blue*=0x0101; 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray*=0x0101; 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 72723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7273c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < 8 && ping_info_color_type == 72743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 72753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 72773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 72783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 72803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 72813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7282c11cf6a442f3046940608a5743a68cc891deb13eglennrp maxval=(png_uint_16) ((1 << ping_info_bit_depth)-1); 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 72913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 72923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 72943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray)); 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7298c11cf6a442f3046940608a5743a68cc891deb13eglennrp " PNG color type: %d",ping_info_color_type); 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 73013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 73023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 99) 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 73163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 73173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level=(int) MagickMin((long) quality/10,9); 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 73273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 73333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 73343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 73383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 73413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 73423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 7346c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_filter_method=PNG_INTRAPIXEL_DIFFERENCING; 73473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 73613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 7363c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (((int) ping_info_color_type == PNG_COLOR_TYPE_GRAY) || 7364c11cf6a442f3046940608a5743a68cc891deb13eglennrp ((int) ping_info_color_type == PNG_COLOR_TYPE_PALETTE) || 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) && defined(PNG_WRITE_iCCP_SUPPORTED) 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 73943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 74073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 74083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_set_sRGB(ping,ping_info,(int) (image->rendering_intent-1)); 74173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 74183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_mng) || !(ping_info->valid & PNG_INFO_sRGB)) 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 74263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 74313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 74323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 74343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 74413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 74553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 74563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7458c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_interlace_method=image_info->interlace != NoInterlace; 74593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 74623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 74683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7470c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type = PNG_COLOR_TYPE_RGB; 7471c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_bit_depth < 8) 7472c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth=8; 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 74763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 7477c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type = PNG_COLOR_TYPE_RGB_ALPHA; 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 7481c11cf6a442f3046940608a5743a68cc891deb13eglennrp (int) mng_info->write_png_depth != ping_info_bit_depth) || 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 7483c11cf6a442f3046940608a5743a68cc891deb13eglennrp ((int) mng_info->write_png_colortype-1 != ping_info_color_type && 7484991e92a91acb9e432cd6c05843e4f6a57643e29dglennrp mng_info->write_png_colortype != 7 && 7485c11cf6a442f3046940608a5743a68cc891deb13eglennrp !(mng_info->write_png_colortype == 5 && ping_info_color_type == 0)))) 74863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 74883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 7494c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth); 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 74973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 75003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 7501c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_color_type); 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 75093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 75113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 75123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7519c11cf6a442f3046940608a5743a68cc891deb13eglennrp png_set_IHDR(ping,ping_info,ping_info_width,ping_info_height, 7520c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_bit_depth,ping_info_color_type, 7521c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_interlace_method,ping_info_compression_method, 7522c11cf6a442f3046940608a5743a68cc891deb13eglennrp ping_info_filter_method); 7523c11cf6a442f3046940608a5743a68cc891deb13eglennrp 75243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]; 75353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 75373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 75393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 75443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 75473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 75483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping->mode |= PNG_HAVE_IDAT; 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 75513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 75543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 75563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 75583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24 || (mng_info->write_png_depth == 8 && 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_RGB)) 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32 || (mng_info->write_png_depth == 8 && 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_RGB_ALPHA)) 75653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 75663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((!mng_info->write_png8 || 75673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY || 75683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA )&& 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image))) 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 2 : 1); 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->IsPalette) 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 4 : 3); 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 75803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image)) 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 4 : 2); 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 8 : 6); 75843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 75863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocating %lu bytes of memory for pixels",rowbytes); 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 75953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 75963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 76093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7610f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 76113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7614ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7615ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7616ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 76203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 76303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 76453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 76463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 76523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 76613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 76633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 76773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 76783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 76803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 76813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 7682c11cf6a442f3046940608a5743a68cc891deb13eglennrp (ping_info_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 76833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 76843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7690c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 77153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 77173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 77203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7724c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 77253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 77293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 77323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7733c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 77343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 77363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 77373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 77393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 77423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 77463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7749c11cf6a442f3046940608a5743a68cc891deb13eglennrp if ((ping_info_color_type != PNG_COLOR_TYPE_GRAY) && 7750c11cf6a442f3046940608a5743a68cc891deb13eglennrp (ping_info_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 77513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 77563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 77593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 77613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 77633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 77643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 77653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7766c11cf6a442f3046940608a5743a68cc891deb13eglennrp if (ping_info_color_type == PNG_COLOR_TYPE_GRAY) 77673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 7769c11cf6a442f3046940608a5743a68cc891deb13eglennrp else if (ping_info_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 77703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 77723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 77743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 77753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 77763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 77793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 77813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 77823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 77833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7786b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7787b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG image data"); 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7794c11cf6a442f3046940608a5743a68cc891deb13eglennrp " Width: %lu",ping_info_width); 77953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7796c11cf6a442f3046940608a5743a68cc891deb13eglennrp " Height: %lu",ping_info_height); 77973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 78013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7803c11cf6a442f3046940608a5743a68cc891deb13eglennrp " PNG bit-depth written: %d",ping_info_bit_depth); 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7810c11cf6a442f3046940608a5743a68cc891deb13eglennrp " PNG color-type written: %d",ping_info_color_type); 78113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 7812c11cf6a442f3046940608a5743a68cc891deb13eglennrp " PNG Interlace method: %d",ping_info_interlace_method); 78133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 78163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER <= 10005) 78183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_text=0; 78193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 78253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 78263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 78273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 78353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 78363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 78383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 78393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 78583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 78593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 78603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 7862c11cf6a442f3046940608a5743a68cc891deb13eglennrp (ping_info_width != mng_info->page.width) || 7863c11cf6a442f3046940608a5743a68cc891deb13eglennrp (ping_info_height != mng_info->page.height)) 78643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 78663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 78673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 78803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 78813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 7884c11cf6a442f3046940608a5743a68cc891deb13eglennrp (png_uint_32) (mng_info->page.x + ping_info_width)); 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 7887c11cf6a442f3046940608a5743a68cc891deb13eglennrp (png_uint_32) (mng_info->page.y + ping_info_height)); 78883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 78903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 78913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 78973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 78983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7905c11cf6a442f3046940608a5743a68cc891deb13eglennrp s[0]=(char) ping_info_bit_depth; 79063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 79123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 79173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7919f84a193d5f435588cd78d521fff3f1f852e227f8cristy UnlockSemaphoreInfo(png_semaphore); 79203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 79213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 79423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 79523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 79653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 79663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 79733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 80023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 80083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 80373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 80583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 80613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 807290823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 80763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 3 */ 4; 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteMatteType); 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 2 */ 3; 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 6 */ 7; 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 1; 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 2; 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 4; 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 16; 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 1; 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 3; 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 4; 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 5; 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 7; 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 81983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 82063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 82913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,image->columns); 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,image->rows); 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG width:%15lu",image->columns); 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG height:%14lu",image->rows); 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 83763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 83833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) (num_bytes-4L)); 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,(unsigned long) (num_bytes-4L)); 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 83903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 83923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 83963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+4,(long) (image->page.x)); 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+8,(long) (image->page.y)); 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 85163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 85343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write IDAT chunks from blob, length=%lu.", 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=8; i<(long) length; i+=len+12) 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) len); 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,(unsigned long) len); 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 85533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping %c%c%c%c chunk, length=%lu.", 85603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(p),*(p+1),*(p+2),*(p+3),len); 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAA chunk, length=%lu.", 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 85763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Created jpeg_image, %lu x %lu.",jpeg_image->columns, 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->rows); 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 86263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAT chunk, length=%lu.", 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 86313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 86493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 86983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 86993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 87133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 87143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 872090823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 87373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8793c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#if (PNG_LIBPNG_VER < 10200) 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 88093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 881690823213d62b0ba18557e61f1e6892c6fffd6cd4cristy mng_info=(MngInfo *) AcquireAlignedMemory(1,sizeof(MngInfo)); 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image_info depth: %ld",image_info->depth); 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Scene: %ld",scene++); 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image depth: %lu",p->depth); 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",p->colors); 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteMatteType); 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteType); 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=10; 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "input has zero delay between all frames; assuming 10 cs", 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",""); 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second/final_delay; 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,mng_info->page.width); 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,mng_info->page.height); 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_nEED,(unsigned long) length); 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM delay: %lu", 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) (mng_info->ticks_per_second* 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM iterations: %lu",PNG_UINT_31_MAX); 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image iterations: %lu",image->iterations); 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 92883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 92893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 92923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 92933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 93283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 93813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 94003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 94123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 94333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 94403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 95003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 95023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 95033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 95043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 95053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 95063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 95073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 95123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 95143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 95153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 95163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 95173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 95183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 95193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 95203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 95213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 95223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 95233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 95243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 95253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 95263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 95273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=image->delay; 95283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 95303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 95333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 95343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 95363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 95373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 95413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 95423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 95433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 95443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 95453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 95463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 95483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 95493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 95523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 95533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 95543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 95563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 95613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 95633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 95643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 95663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 95673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 95683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 95693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 95703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 95713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 95723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 95733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 95743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 95753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 95773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 95793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 95803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 95813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 95823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 95833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 95843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 95853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 95863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 95873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 95883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 95893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 95903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 95913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 95923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9593c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#else /* PNG_LIBPNG_VER > 10011 */ 95943ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 95953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 95963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 95973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 95983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 95993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 96003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 96013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 96023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 96033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 96043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 96053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9606c451207335b7a8bb4e44f904f3d65a2727e41214glennrp#endif /* PNG_LIBPNG_VER > 10011 */ 96073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9608