png.c revision 61b4c957269727a0a2526edc2331881da8346100
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% % 213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Copyright 1999-2009 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" 793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/transform.h" 803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "magick/utility.h" 813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 82286a6355c4544b794da2b6df973faad07c69e541glennrp 837ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp/* Suppress libpng pedantic warnings that were added in 847ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * libpng-1.2.41 and libpng-1.4.0. If you are working on 857ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * migration to libpng-2.0, remove these defines and then 867ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp * fix any code that generates warnings. 877ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp */ 887ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_DEPRECATED /* Use of this function is deprecated */ 897ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_USE_RESULT /* The result of this function must be checked */ 907ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_NORETURN /* This function does not return */ 917ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_ALLOCATED /* The result of the function is new memory */ 927ef138c2e0e2bd4acefd810968b0324f6dc469f1glennrp#define PNG_DEPSTRUCT /* Access to this struct member is deprecated */ 93286a6355c4544b794da2b6df973faad07c69e541glennrp 943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "png.h" 953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#include "zlib.h" 963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* ImageMagick differences */ 983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define first_scene scene 993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER < 10400 1012c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_color trans_values /* Changed at libpng-1.4.0beta35 */ 1022c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_alpha trans /* Changed at libpng-1.4.0beta74 */ 1032c74c978809443456f5a21cd43b25b0a55c7881aglennrp#else 1042c74c978809443456f5a21cd43b25b0a55c7881aglennrp /* We could parse PNG_LIBPNG_VER_STRING here but it's too much bother.. 1052c74c978809443456f5a21cd43b25b0a55c7881aglennrp * Just don't use libpng-1.4.0beta32-34 or beta67-73 1062c74c978809443456f5a21cd43b25b0a55c7881aglennrp */ 1072c74c978809443456f5a21cd43b25b0a55c7881aglennrp# ifndef PNG_USER_CHUNK_CACHE_MAX /* Added at libpng-1.4.0beta32 */ 1082c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_color trans_values /* Changed at libpng-1.4.0beta35 */ 1092c74c978809443456f5a21cd43b25b0a55c7881aglennrp# endif 1102c74c978809443456f5a21cd43b25b0a55c7881aglennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 1112c74c978809443456f5a21cd43b25b0a55c7881aglennrp# define trans_alpha trans /* Changed at libpng-1.4.0beta74 */ 1122c74c978809443456f5a21cd43b25b0a55c7881aglennrp# endif 1133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER > 95 1163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Optional declarations. Define or undefine them as you like. 1183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* #define PNG_DEBUG -- turning this on breaks VisualC compiling */ 1203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Features under construction. Define these to work on them. 1233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_OBJECT_BUFFERS 1253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_BASI_SUPPORTED 1263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_COALESCE_LAYERS /* In 5.4.4, this interfered with MMAP'ed files. */ 1273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_INSERT_LAYERS /* Troublesome, but seem to work as of 5.4.4 */ 1283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_BUILD_PALETTE /* This works as of 5.4.3. */ 1293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SORT_PALETTE /* This works as of 5.4.0. */ 1303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_JPEG_DELEGATE) 1313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define JNG_SUPPORTED /* Not finished as of 5.5.2. See "To do" comments. */ 1323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(RGBColorMatchExact) 1343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define IsPNGColorEqual(color,target) \ 1353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((color).red == (target).red) && \ 1363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).green == (target).green) && \ 1373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((color).blue == (target).blue)) 1383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Establish thread safety. 1423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is claimed to be safe on these platforms: 1433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy setjmp/longjmp is alleged to be unsafe on these platforms: 1443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef SETJMP_IS_THREAD_SAFE 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_SETJMP_NOT_THREAD_SAFE 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic SemaphoreInfo 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_semaphore = (SemaphoreInfo *) NULL; 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This temporary until I set up malloc'ed object attributes array. 1563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Recompile with MNG_MAX_OBJECTS=65536L to avoid this limit but 1573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy waste more memory. 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define MNG_MAX_OBJECTS 256 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If this not defined, spec is interpreted strictly. If it is 1633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined, an attempt will be made to recover from some errors, 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy including 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o global PLTE too short 1663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef MNG_LOOSE 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Don't try to define PNG_MNG_FEATURES_SUPPORTED here. Make sure 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy it's defined in libpng/pngconf.h, version 1.0.9 or later. It won't work 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy with earlier versions of libpng. From libpng-1.0.3a to libpng-1.0.8, 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_READ|WRITE_EMPTY_PLTE were used but those have been deprecated in 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy libpng in favor of PNG_MNG_FEATURES_SUPPORTED, so we set them here. 1753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_MNG_FEATURES_SUPPORTED is disabled by default in libpng-1.0.9 and 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy will be enabled by default in libpng-1.2.0. 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10009) /* work around libpng-1.0.9 bug */ 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# undef PNG_READ_EMPTY_PLTE_SUPPORTED 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# undef PNG_WRITE_EMPTY_PLTE_SUPPORTED 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_MNG_FEATURES_SUPPORTED 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_READ_EMPTY_PLTE_SUPPORTED 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifndef PNG_WRITE_EMPTY_PLTE_SUPPORTED 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# define PNG_WRITE_EMPTY_PLTE_SUPPORTED 1883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Maximum valid unsigned long in PNG/MNG chunks is (2^31)-1 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This macro is only defined in libpng-1.0.3 and later. 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Previously it was PNG_MAX_UINT but that was deprecated in libpng-1.2.6 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_UINT_31_MAX 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_UINT_31_MAX (png_uint_32) 0x7fffffffL 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Constant strings for known chunk types. If you need to add a chunk, 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy add a string holding the name here. To make the code more 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy portable, we use ASCII numbers like this, not characters. 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MHDR[5]={ 77, 72, 68, 82, (png_byte) '\0'}; 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BACK[5]={ 66, 65, 67, 75, (png_byte) '\0'}; 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_BASI[5]={ 66, 65, 83, 73, (png_byte) '\0'}; 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLIP[5]={ 67, 76, 73, 80, (png_byte) '\0'}; 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_CLON[5]={ 67, 76, 79, 78, (png_byte) '\0'}; 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DEFI[5]={ 68, 69, 70, 73, (png_byte) '\0'}; 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DHDR[5]={ 68, 72, 68, 82, (png_byte) '\0'}; 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_DISC[5]={ 68, 73, 83, 67, (png_byte) '\0'}; 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_ENDL[5]={ 69, 78, 68, 76, (png_byte) '\0'}; 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_FRAM[5]={ 70, 82, 65, 77, (png_byte) '\0'}; 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IEND[5]={ 73, 69, 78, 68, (png_byte) '\0'}; 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IHDR[5]={ 73, 72, 68, 82, (png_byte) '\0'}; 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JHDR[5]={ 74, 72, 68, 82, (png_byte) '\0'}; 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_LOOP[5]={ 76, 79, 79, 80, (png_byte) '\0'}; 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MAGN[5]={ 77, 65, 71, 78, (png_byte) '\0'}; 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MEND[5]={ 77, 69, 78, 68, (png_byte) '\0'}; 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_MOVE[5]={ 77, 79, 86, 69, (png_byte) '\0'}; 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PAST[5]={ 80, 65, 83, 84, (png_byte) '\0'}; 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_PLTE[5]={ 80, 76, 84, 69, (png_byte) '\0'}; 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SAVE[5]={ 83, 65, 86, 69, (png_byte) '\0'}; 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SEEK[5]={ 83, 69, 69, 75, (png_byte) '\0'}; 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_SHOW[5]={ 83, 72, 79, 87, (png_byte) '\0'}; 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_TERM[5]={ 84, 69, 82, 77, (png_byte) '\0'}; 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_bKGD[5]={ 98, 75, 71, 68, (png_byte) '\0'}; 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_cHRM[5]={ 99, 72, 82, 77, (png_byte) '\0'}; 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_gAMA[5]={103, 65, 77, 65, (png_byte) '\0'}; 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_nEED[5]={110, 69, 69, 68, (png_byte) '\0'}; 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYg[5]={112, 72, 89, 103, (png_byte) '\0'}; 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_pHYs[5]={112, 72, 89, 115, (png_byte) '\0'}; 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sBIT[5]={115, 66, 73, 84, (png_byte) '\0'}; 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sRGB[5]={115, 82, 71, 66, (png_byte) '\0'}; 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tRNS[5]={116, 82, 78, 83, (png_byte) '\0'}; 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_IDAT[5]={ 73, 68, 65, 84, (png_byte) '\0'}; 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAT[5]={ 74, 68, 65, 84, (png_byte) '\0'}; 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JDAA[5]={ 74, 68, 65, 65, (png_byte) '\0'}; 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JdAA[5]={ 74, 100, 65, 65, (png_byte) '\0'}; 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_JSEP[5]={ 74, 83, 69, 80, (png_byte) '\0'}; 2473ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_oFFs[5]={111, 70, 70, 115, (png_byte) '\0'}; 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristyOther known chunks that are not yet supported by ImageMagick: 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_hIST[5]={104, 73, 83, 84, (png_byte) '\0'}; 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_iTXt[5]={105, 84, 88, 116, (png_byte) '\0'}; 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sPLT[5]={115, 80, 76, 84, (png_byte) '\0'}; 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_sTER[5]={115, 84, 69, 82, (png_byte) '\0'}; 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tEXt[5]={116, 69, 88, 116, (png_byte) '\0'}; 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_tIME[5]={116, 73, 77, 69, (png_byte) '\0'}; 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_byte FARDATA mng_zTXt[5]={122, 84, 88, 116, (png_byte) '\0'}; 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBox 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy left, 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy right, 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top, 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bottom; 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBox; 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngPair 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a, 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy b; 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngPair; 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngBuffer 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height, 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width; 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte[256]; 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reference_count; 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_sample_depth, 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy concrete, 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method, 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen, 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_type, 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixel_sample_depth, 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte_length, 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sample_depth, 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable; 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngBuffer; 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _MngInfo 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBuffer 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ob[MNG_MAX_OBJECTS]; 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image * 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image; 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page; 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy adjoin, 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_in_read_buffer, 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy found_empty_plte, 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_backgrounds, 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_chrms, 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_gammas, 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_palettes, 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_physs, 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy equal_srgbs, 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode, 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_bkgd, 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_chrm, 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_gama, 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_phys, 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_sbit, 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_global_srgb, 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_saved_bkgd_index, 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_chrm, 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_gama, 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_plte, 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_write_global_srgb, 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_fram, 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_framing_mode, 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy saved_bkgd_index; 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors; 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_found, 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_count[256], 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iteration[256], 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scenes_found, 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_off[MNG_MAX_OBJECTS], 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_off[MNG_MAX_OBJECTS]; 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clip, 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame, 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_box, 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_clip[MNG_MAX_OBJECTS]; 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* These flags could be combined into one byte */ 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exists[MNG_MAX_OBJECTS], 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frozen[MNG_MAX_OBJECTS], 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_active[256], 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy invisible[MNG_MAX_OBJECTS], 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy viewable[MNG_MAX_OBJECTS]; 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_jump[256]; 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte; 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_8 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_sbit; 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_buffer[8], 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns[256]; 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy float 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_gamma; 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ChromaticityInfo 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_chrm; 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RenderingIntent 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_srgb_intent; 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy delay, 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_plte_length, 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_trns_length, 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_x_pixels_per_unit, 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_y_pixels_per_unit, 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_width, 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_height, 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ticks_per_second; 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IsPalette, 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy global_phys_unit_type, 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_warning, 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy clon_warning, 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dhdr_warning, 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jhdr_warning, 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_warning, 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy past_warning, 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phyg_warning, 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy phys_warning, 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sbit_warning, 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy show_warning, 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type, 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng, 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_colortype, 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png_depth, 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png8, 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png24, 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_png32; 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width, 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height; 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_depth, 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type, 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method, 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type, 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method, 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red, 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green, 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue, 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha, 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable; 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 4663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 4693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_global_bkgd; 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} MngInfo; 4723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* VER */ 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WritePNGImage(const ImageInfo *,Image *); 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteMNGImage(const ImageInfo *,Image *); 4813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 4823ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy WriteJNGImage(const ImageInfo *,Image *); 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4863ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMax(const long x,const long y) 4873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline long MagickMin(const long x,const long y) 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER > 95 5003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 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 % 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 5103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% CompressColormapTransFirst compresses an image colormap removing 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% any duplicate and unused color entries and putting the transparent colors 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% first. Returns MagickTrue on success, MagickFalse on error. 5153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the CompressColormapTransFirst method is: 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned int CompressColormapTransFirst(Image *image) 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 5253ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType CompressColormapTransFirst(Image *image) 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 5283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed, 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k; 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j, 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors, 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 5383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *colormap; 5393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 5443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 5453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used; 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 5503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 5513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 5523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *map, 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *opacity; 5563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *marker, 5593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency; 5603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if colormap can be compressed. 5633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 5653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 5663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 5673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class != PseudoClass || image->colors > 256 || 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors < 2) 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 5713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) AcquireQuantumMemory(image->colors,sizeof(*marker)); 5723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker == (unsigned char *) NULL) 5733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) AcquireQuantumMemory(image->colors,sizeof(*opacity)); 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity == (IndexPacket *) NULL) 5773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 5793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 5813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark colors that are present. 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=(long) image->colors; 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickFalse; 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[i]=OpaqueOpacity; 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=0; 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 5933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 5973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetVirtualIndexQueue(image); 5983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 5993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 6003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[(int) indices[x]]=MagickTrue; 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity[(int) indices[x]]=p->opacity; 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indices[x] > top_used) 6043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=indices[x]; 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 6083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[(int) indices[x]]=MagickTrue; 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indices[x] > top_used) 6123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy top_used=indices[x]; 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Mark background color, topmost occurrence if more than one. 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=number_colors-1; i; i--) 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsColorEqual(image->colormap+i,&image->background_color)) 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[i]=MagickTrue; 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Unmark duplicates. 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors-1; i++) 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Count colors that still remain. 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickFalse; 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors=0; 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_number_colors++; 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (opacity[i] != OpaqueOpacity) 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_transparency=MagickTrue; 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!have_transparency || (marker[0] && 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (opacity[0] == (Quantum) TransparentOpacity))) 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && (new_number_colors == number_colors)) 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No duplicate or unused entries, and transparency-swap not needed. 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickFalse; 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((long) top_used >= new_number_colors) 6673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 6683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Compress colormap. 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) AcquireQuantumMemory(image->colors, 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*colormap)); 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (colormap == (PixelPacket *) NULL) 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Eliminate unused colormap entries. 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) AcquireQuantumMemory((size_t) number_colors, 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*map)); 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map == (IndexPacket *) NULL) 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 6913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k=0; 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 6973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[i]=(IndexPacket) k; 6993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=i+1; j < number_colors; j++) 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((opacity[i] == opacity[j]) && 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (IsColorEqual(image->colormap+i,image->colormap+j))) 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=(IndexPacket) k; 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker[j]=MagickFalse; 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy k++; 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=0; 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i]) 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[j]=image->colormap[i]; 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j++; 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (have_transparency && (opacity[0] != (Quantum) TransparentOpacity)) 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Move the first transparent color to palette entry 0. 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < number_colors; i++) 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (marker[i] && opacity[i] == (Quantum) TransparentOpacity) 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap; 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy temp_colormap=colormap[0]; 7353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[0]=colormap[(int) map[i]]; 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap[(long) map[i]]=temp_colormap; 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < number_colors; j++) 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (map[j] == 0) 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=map[i]; 7413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (map[j] == map[i]) 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map[j]=0; 7433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy remap_needed=MagickTrue; 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity=(IndexPacket *) RelinquishMagickMemory(opacity); 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy marker=(unsigned char *) RelinquishMagickMemory(marker); 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (remap_needed) 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Remap pixels. 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=GetAuthenticIndexQueue(image); 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j=(int) pixels[x]; 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels[x]=map[j]; 7783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < new_number_colors; i++) 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i]=colormap[i]; 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colormap=(PixelPacket *) RelinquishMagickMemory(colormap); 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) new_number_colors; 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy map=(IndexPacket *) RelinquishMagickMemory(map); 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s G r a y % 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsGrayImage except does not change DirectClass to PseudoClass % 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsGray(Image *image) 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(image->colormap+i) == MagickFalse) 8263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I m a g e I s M o n o c h r o m e % 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Like IsMonochromeImage except does not change DirectClass to PseudoClass % 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and is more accurate. % 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType ImageIsMonochrome(Image *image) 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 8633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x, 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((IsGray(image->colormap+i) == MagickFalse) || 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->colormap[i].red != 0) && 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colormap[i].red != (Quantum) QuantumRange))) 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->red != 0) && (p->red != (Quantum) QuantumRange)) 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p->opacity != OpaqueOpacity) && 8973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p->opacity != (Quantum) TransparentOpacity)) 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* PNG_LIBPNG_VER > 95 */ 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MAGICKCORE_PNG_DELEGATE */ 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s M N G % 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsMNG() returns MagickTrue if the image format type, identified by the 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is MNG. 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsMNG method is: 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s J N G % 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsJNG() returns MagickTrue if the image format type, identified by the 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is JNG. 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsJNG method is: 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s P N G % 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsPNG() returns MagickTrue if the image format type, identified by the 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is PNG. 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsPNG method is: 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 95) 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic size_t WriteBlobMSBULong(Image *image,const unsigned long value) 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[4]; 10213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[0]=(unsigned char) (value >> 24); 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[1]=(unsigned char) (value >> 16); 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[2]=(unsigned char) (value >> 8); 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy buffer[3]=(unsigned char) value; 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) WriteBlob(image,4,buffer)); 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGLong(png_bytep p,png_uint_32 value) 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGsLong(png_bytep p,png_int_32 value) 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 24) & 0xff); 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 16) & 0xff); 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGShort(png_bytep p,png_uint_16 value) 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) ((value >> 8) & 0xff); 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(png_byte) (value & 0xff); 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGType(png_bytep p,png_bytep type) 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10583ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void LogPNGChunk(int logging, png_bytep type, size_t length) 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing %c%c%c%c chunk, length: %lu", 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],(unsigned long) length); 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* PNG_LIBPNG_VER > 95 */ 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER > 95 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d P N G I m a g e % 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadPNGImage() reads a Portable Network Graphics (PNG) or 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file and returns it. It 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% allocates the memory necessary for the new Image structure and returns a 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pointer to the new image or set of images. 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadPNGImage method is: 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do, more or less in chronological order (as of version 5.5.2, 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Get 16-bit cheap transparency working. 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG decoding is supposed to be in full MNG-LC compliance) 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (At this point, PNG encoding should be in full MNG compliance) 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide options for choice of background to use when the MNG BACK 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk is not present or is not mandatory (i.e., leave transparent, 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% user specified, MNG BACK, PNG bKGD) 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Implement LOOP/ENDL [done, but could do discretionary loops more 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% efficiently by linking in the duplicate frames.]. 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Decode and act on the MHDR simplicity profile (offer option to reject 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files or attempt to process them anyway when the profile isn't LC or VLC). 11223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG without Delta-PNG. 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BACK [done a while ago except for background image ID] 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MOVE [done 15 May 1999] 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o CLIP [done 15 May 1999] 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o DISC [done 19 May 1999] 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SAVE [partially done 19 May 1999 (marks objects frozen)] 11303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SEEK [partially done 19 May 1999 (discard function only)] 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o SHOW 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PAST 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o BASI 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o MNG-level tEXt/iTXt/zTXt 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYg 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pHYs 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o sBIT 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bKGD 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o iTXt (wait for libpng implementation). 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use the scene signature to discover when an identical scene is 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% being reused, and just point to the original image->exception instead 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of storing another set of pixels. This not specific to MNG 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% but could be applied generally. 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Upgrade to full MNG with Delta-PNG. 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG tEXt/iTXt/zTXt 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% We will not attempt to read files containing the CgBI chunk. 11513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% They are really Xcode files meant for display on the iPhone. 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% These are not valid PNG files and it is impossible to recover 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the orginal PNG from files that have been converted to Xcode-PNG, 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% since irretrievable loss of color data has occurred due to the 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% use of premultiplied alpha. 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 11593ed852eea50f9d4cd633efb8c2b054b8e33c253cristyextern "C" { 11603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 11613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This the function that does the actual reading of data. It is 11643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the same as the one supplied in libpng, except that it receives the 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy datastream from the ReadBlob() function instead of standard input. 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,data); 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy msg[MaxTextExtent]; 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(msg,MaxTextExtent, 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Expected %lu bytes; found %lu bytes",(unsigned long) length, 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) check); 11873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_warning(png_ptr,msg); 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 11893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !defined(PNG_MNG_FEATURES_SUPPORTED) 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* We use mng_get_data() instead of png_get_data() if we have a libpng 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * older than libpng-1.0.3a, which was the first to allow the empty 11973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * ifdef'ed out. Earlier versions would crash if the bKGD chunk was 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * encountered after an empty PLTE, so we have to look ahead for bKGD 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * chunks and remove them from the datastream that is passed to libpng, 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and store their contents for later use. 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) png_get_io_ptr(png_ptr); 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) mng_info->image; 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (mng_info->bytes_in_read_buffer && length) 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[i]=mng_info->read_buffer[i]; 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer--; 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length--; 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i++; 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Read Exception"); 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 0)) 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickTrue; 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (data[3] == 1)) 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->read_buffer[4]=0; 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=4; 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->found_empty_plte) 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Skip the bKGD data byte and CRC. 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ReadBlob(image,5,(char *) mng_info->read_buffer); 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) ReadBlob(image,(size_t) length, 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) mng_info->read_buffer); 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->saved_bkgd_index=mng_info->read_buffer[0]; 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickTrue; 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_io_ptr(png_ptr); 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check; 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check=(png_size_t) WriteBlob(image,(unsigned long) length,data); 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (check != length) 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"WriteBlob Failed"); 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void png_flush_data(png_structp png_ptr) 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 12953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_ptr; 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int PalettesAreEqual(Image *a,Image *b) 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a == (Image *) NULL) || (b == (Image *) NULL)) 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (a->colors != b->colors) 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) a->colors; i++) 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((a->colormap[i].red != b->colormap[i].red) || 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].green != b->colormap[i].green) || 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (a->colormap[i].blue != b->colormap[i].blue)) 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickFalse); 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((int) MagickTrue); 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13213ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoDiscardObject(MngInfo *mng_info,int i) 13223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && 13243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i] && !mng_info->frozen[i]) 13253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 13273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 13283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count > 0) 13303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->reference_count--; 13313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->reference_count == 0) 13323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i]->image != (Image *) NULL) 13343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); 13353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=DestroyString(mng_info->ob[i]); 13363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]=(MngBuffer *) NULL; 13393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 13403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[i]=MagickFalse; 13413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[i]=MagickFalse; 13423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[i]=MagickFalse; 13433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickFalse; 13443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=0; 13453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=0; 13463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].left=0; 13473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 13483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].top=0; 13493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 13503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13533ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void MngInfoFreeStruct(MngInfo *mng_info,int *have_mng_structure) 13543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*have_mng_structure && (mng_info != (MngInfo *) NULL)) 13563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 13583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 13593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 13613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 13623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte != (png_colorp) NULL) 13633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) 13643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(mng_info->global_plte); 13653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); 13663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *have_mng_structure=MagickFalse; 13673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13703ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_minimum_box(MngBox box1,MngBox box2) 13713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=box1; 13763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.left < box2.left) 13773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=box2.left; 13783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.top < box2.top) 13793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=box2.top; 13803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.right > box2.right) 13813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=box2.right; 13823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (box.bottom > box2.bottom) 13833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=box2.bottom; 13843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return box; 13853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 13863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13873ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) 13883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 13893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 13903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 13913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 13933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. 13943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 13953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 13963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 13973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top=(long) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); 13983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom=(long) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); 13993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.left+=previous_box.left; 14023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.right+=previous_box.right; 14033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.top+=previous_box.top; 14043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box.bottom+=previous_box.bottom; 14053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(box); 14073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14093ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MngPair mng_read_pair(MngPair previous_pair,int delta_type, 14103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char *p) 14113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 14133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair; 14143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 14153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read two longs from CLON, MOVE or PAST chunk 14163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 14173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); 14183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); 14193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (delta_type != 0) 14203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 14213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.a+=previous_pair.a; 14223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pair.b+=previous_pair.b; 14233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 14243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(pair); 14253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14273ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic long mng_get_long(unsigned char *p) 14283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); 14303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14323ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGErrorHandler(png_struct *ping,png_const_charp message) 14333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s error: %s", PNG_LIBPNG_VER_STRING,message); 14413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderError, 14423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy longjmp(ping->jmpbuf,1); 14443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14463ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void PNGWarningHandler(png_struct *ping,png_const_charp message) 14473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 14493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 14503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) 14523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, message); 14533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_error_ptr(ping); 14543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 14553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 14563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " libpng-%s warning: %s", PNG_LIBPNG_VER_STRING, 14573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message); 14583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(),CoderWarning, 14593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy message,"`%s'",image->filename); 14603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 14633ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_voidp png_IM_malloc(png_structp png_ptr,png_uint_32 size) 14643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10011) 14663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_voidp 14673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret; 14683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ret=((png_voidp) AcquireMagickMemory((size_t) size)); 14713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ret == NULL) 14723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error("Insufficient memory."); 14733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ret); 14743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 14753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_voidp) AcquireMagickMemory((size_t) size)); 14773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 14813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free a pointer. It is removed from the list at the same time. 14823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 14833ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic png_free_ptr png_IM_free(png_structp png_ptr,png_voidp ptr) 14843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr=png_ptr; 14863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ptr=RelinquishMagickMemory(ptr); 14873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((png_free_ptr) NULL); 14883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(__cplusplus) || defined(c_plusplus) 14923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 14933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 14943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 14953ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int 14963ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_read_raw_profile(Image *image, const ImageInfo *image_info, 14973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp text,int ii) 14983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 15003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 15013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 15033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp; 15043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register png_charp 15063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp; 15073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 15093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 15103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles; 15113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 15133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 15143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 15163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, 15193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 15203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, 15213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 13,14,15}; 15223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=text[ii].text+1; 15243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for newline */ 15253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != '\n') 15263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* look for length */ 15283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp == '\0' || *sp == ' ' || *sp == '\n') 15293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) atol(sp); 15313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp != ' ' && *sp != '\n') 15323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* allocate space */ 15343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 0) 15353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","invalid profile length"); 15383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(length); 15413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile == (StringInfo *) NULL) 15423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 15453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "unable to copy profile"); 15463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* copy profile, skipping white space and column 1 "=" signs */ 15493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=GetStringInfoDatum(profile); 15503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy nibbles=length*2; 15513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) nibbles; i++) 15523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') 15543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*sp == '\0') 15563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 15573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 15583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderWarning,"UnableToCopyProfile","`%s'","ran out of data"); 15593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 15613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp++; 15633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%2 == 0) 15653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp=(unsigned char) (16*unhex[(int) *sp++]); 15663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 15673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*dp++)+=unhex[(int) *sp++]; 15683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 15693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 15703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy We have already read "Raw profile type. 15713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,&text[ii].key[17],profile); 15733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 15743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 15753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); 15763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return MagickTrue; 15773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 15783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 15803ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) 15813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 15823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 15833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 15843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* The unknown chunk structure contains the chunk data: 15873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte name[5]; 15883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte *data; 15893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_size_t size; 15903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note that libpng has already taken care of the CRC handling. 15923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 15933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->name[0] != 118 || chunk->name[1] != 112 || 15963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk->name[2] != 65 ||chunk-> name[3] != 103) 15973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* Did not recognize */ 15983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 15993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* recognized vpAg */ 16003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->size != 9) 16023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-1); /* Error return */ 16033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk->data[8] != 0) 16053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(0); /* ImageMagick requires pixel units */ 16063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=(Image *) png_get_user_chunk_ptr(ping); 16083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=(unsigned long) ((chunk->data[0] << 24) | 16103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); 16113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=(unsigned long) ((chunk->data[4] << 24) | 16123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); 16133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Return one of the following: */ 16153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(-n); chunk had an error */ 16163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(0); did not recognize */ 16173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* return(n); success */ 16183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(1); 16203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 16223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 16233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 16253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e P N G I m a g e % 16303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 16333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 16343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file 16363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 16373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 16383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 16393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOnePNGImage method is: 16413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, 16433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 16443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 16463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 16483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 16503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 16523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 16533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 16543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOnePNGImage(MngInfo *mng_info, 16553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 16563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 16573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Read one PNG image */ 16583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 16603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 16613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 16633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 16643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_text, 16653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 16663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pass; 16673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 16693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 16703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 16723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color; 16733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 16753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *end_info, 16763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 16773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 16793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 16803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 16823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 16833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 16853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 16863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 16883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 16893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 16913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 16923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 16943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 16953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 16973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 16983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 16993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 17003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 17013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 17023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 17043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 17053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 17073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 17083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 17103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset; 17113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 17133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte unused_chunks[]= 17143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 104, 73, 83, 84, (png_byte) '\0', /* hIST */ 17163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ 17173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ 17183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ 17193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ 17203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 116, 73, 77, 69, (png_byte) '\0', /* tIME */ 17213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 17223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 17253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOnePNGImage()"); 17263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1728a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) LockSemaphoreInfo(png_semaphore); 17293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10007) 17323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 17333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 17343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 17353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 173761b4c957269727a0a2526edc2331881da8346100glennrp#if (PNG_LIBPNG_VER >= 10400) 173861b4c957269727a0a2526edc2331881da8346100glennrp# ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ 173961b4c957269727a0a2526edc2331881da8346100glennrp if (image_info->verbose) 174061b4c957269727a0a2526edc2331881da8346100glennrp { 174161b4c957269727a0a2526edc2331881da8346100glennrp printf("Your PNG library (libpng-%s) is an old beta version.\n", 174261b4c957269727a0a2526edc2331881da8346100glennrp PNG_LIBPNG_VER_STRING); 174361b4c957269727a0a2526edc2331881da8346100glennrp printf("Please update it.\n"); 174461b4c957269727a0a2526edc2331881da8346100glennrp } 174561b4c957269727a0a2526edc2331881da8346100glennrp# endif 174661b4c957269727a0a2526edc2331881da8346100glennrp#endif 174761b4c957269727a0a2526edc2331881da8346100glennrp 174861b4c957269727a0a2526edc2331881da8346100glennrp 1749ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 17503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 17513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 17523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 17543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 17563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING, image, 17573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler, NULL, 17583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 17593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 17603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,image, 17613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 17623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 17643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 17663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 17673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); 17693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy end_info=png_create_info_struct(ping); 17723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (end_info == (png_info *) NULL) 17733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); 17753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 17763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 17783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 17793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 17803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 17823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 17843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 1785a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 17863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 17873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 17883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 17893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 17903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 17910c38ae55173384e633408067dc1a40d38dd9bd9ccristy image->columns=0; 17923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 17933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 17943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 17953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for reading. 17963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 17973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 17983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 17993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 18003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 18023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 18033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) 18063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 18073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 18093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 18103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->bytes_in_read_buffer=0; 18113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->found_empty_plte=MagickFalse; 18123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index=MagickFalse; 18133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,mng_info,mng_get_data); 18143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 18183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_fn(ping,image,png_get_data); 18193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) 18213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Ignore unused chunks and all unknown chunks except for vpAg */ 18223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, NULL, 0); 18233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); 18243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_keep_unknown_chunks(ping, 1, unused_chunks, 18253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)sizeof(unused_chunks)/5); 18263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Callback for other unknown chunks */ 18273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); 18283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ 18313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) 18323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Disable thread-unsafe features of pnggccrd */ 18333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_access_version_number() >= 10200) 18343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 mmx_disable_mask=0; 18363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 asm_flags; 18373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ 18393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ 18403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ 18413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); 18423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy asm_flags=png_get_asm_flags(ping); 18433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); 18443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 18463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_info(ping,ping_info); 18483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < 8) 18493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE)) 18513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 18523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=ping_info->bit_depth; 18543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=GetImageQuantumDepth(image,MagickFalse); 18553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=ping_info->interlace_type != 0 ? PNGInterlace : NoInterlace; 18563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG width: %lu, height: %lu", 18603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->width, ping_info->height); 18613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color_type: %d, bit_depth: %d", 18633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type, ping_info->bit_depth); 18643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG compression_method: %d", 18663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->compression_type); 18673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG interlace_method: %d, filter_method: %d", 18693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->interlace_type,ping_info->filter_type); 18703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 18713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) && defined(PNG_READ_iCCP_SUPPORTED) 18733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_iCCP) 18743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 18763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression; 18773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 18793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy info, 18803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name; 18813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 18833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_length; 18843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, 18863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &profile_length); 18873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile_length != 0) 18883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 18893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 18903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 18913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 18923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 18933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 18943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG iCCP chunk."); 18953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=AcquireStringInfo(profile_length); 18963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetStringInfoDatum(profile,(const unsigned char *) info); 18973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProfile(image,"icc",profile); 18983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=DestroyStringInfo(profile); 18993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sRGB_SUPPORTED) 19033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intent; 19063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_srgb) 19083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) 19093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->global_srgb_intent+1); 19103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_sRGB(ping,ping_info,&intent)) 19113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (intent+1); 19133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG sRGB chunk: rendering_intent: %d",intent+1); 19163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy double 19213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy file_gamma; 19223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_gama) 19243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=mng_info->global_gamma; 19253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_gAMA(ping,ping_info,&file_gamma)) 19263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=(float) file_gamma; 19283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG gAMA chunk: gamma: %f",file_gamma); 19313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_chrm != MagickFalse) 19343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity=mng_info->global_chrm; 19353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_cHRM) 19363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_cHRM(ping,ping_info, 19383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.x, 19393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.white_point.y, 19403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.x, 19413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.red_primary.y, 19423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.x, 19433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.green_primary.y, 19443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.x, 19453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->chromaticity.blue_primary.y); 19463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG cHRM chunk."); 19493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent) 19513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 19533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 19543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 19553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 19563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 19573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 19583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 19593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 19603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 19613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_global_gama != MagickFalse) || image->rendering_intent) 19633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_gAMA; 19643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_global_chrm != MagickFalse) || image->rendering_intent) 19653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_cHRM; 19663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 19673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_oFFs) 19683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=png_get_x_offset_pixels(ping, ping_info); 19703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=png_get_y_offset_pixels(ping, ping_info); 19713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 19723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 19733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 19743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG oFFs chunk: x: %ld, y: %ld.",image->page.x, 19753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y); 19763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 19773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 19783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 19793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_pHYs) 19803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 19823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 19833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 19853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 19863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 19873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 19883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 19893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image resolution. 19903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 19913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, 19923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &unit_type); 19933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(float) x_resolution; 19943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(float) y_resolution; 19953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (unit_type == PNG_RESOLUTION_METER) 19963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 19973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 19983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) x_resolution/100.0; 19993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) y_resolution/100.0; 20003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG pHYs chunk: xres: %lu, yres: %lu, units: %d.", 20043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, y_resolution, unit_type); 20053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 20073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_phys) 20093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(float) mng_info->global_x_pixels_per_unit; 20113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(float) mng_info->global_y_pixels_per_unit; 20123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_phys_unit_type == PNG_RESOLUTION_METER) 20133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 20153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) 20163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit/100.0; 20173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) 20183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit/100.0; 20193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_pHYs; 20213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_PLTE) 20253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 20273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 20283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 20303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 20313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 20333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((number_colors == 0) && 20343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE)) 20353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte_length) 20373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,mng_info->global_plte, 20393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_plte_length); 20403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ping_info->valid & PNG_INFO_tRNS) == 0) 20413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length) 20423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_trns_length > 20443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length) 20453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 20463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 20473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "global tRNS has more entries than global PLTE", 20483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 20493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_tRNS(ping,ping_info,mng_info->global_trns, 20503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int) mng_info->global_trns_length,NULL); 20513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 20533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ( 20543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 20553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_saved_bkgd_index || 20563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid & PNG_INFO_bKGD) 20583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 20603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 20613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 20633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_saved_bkgd_index) 20643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=mng_info->saved_bkgd_index; 20653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 20663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=ping_info->background.index; 20683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 20693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].red; 20703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 20713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].green; 20723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 20733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[background.index].blue; 20743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 20753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 20773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 20793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 20803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No global PLTE in file","`%s'", 20813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 20823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 20843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 20853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_bKGD_SUPPORTED) 20863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_bkgd && !(ping_info->valid & PNG_INFO_bKGD)) 20873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_info->mng_global_bkgd; 20883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_bKGD) 20893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 20913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image background color. 20923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 20933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 20943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 20953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG bKGD chunk."); 20963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth <= MAGICKCORE_QUANTUM_DEPTH) 20973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 20983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ping_info->background.red; 20993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ping_info->background.green; 21003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ping_info->background.blue; 21013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red= 21053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum(ping_info->background.red); 21063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green= 21073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum(ping_info->background.green); 21083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue= 21093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum(ping_info->background.blue); 21103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=0; 21143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=0; 21153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=0; 21163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=0; 21173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 21183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 21213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 21233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample; 21243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG tRNS chunk."); 21283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy max_sample = (1 << ping_info->bit_depth) - 1; 21303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 21313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ping_info->color_type == PNG_COLOR_TYPE_GRAY && 21323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)ping_info->trans_color.gray > max_sample) || 21333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ping_info->color_type == PNG_COLOR_TYPE_RGB && 21343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int)ping_info->trans_color.red > max_sample || 21353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)ping_info->trans_color.green > max_sample || 21363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (int)ping_info->trans_color.blue > max_sample))) 21373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 21393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 21403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Ignoring PNG tRNS chunk with out-of-range sample."); 21413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10007) 21423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) RelinquishMagickMemory( 21433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha); 21443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 21453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 21463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); 21473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 21493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red= (Quantum)(ping_info->trans_color.red); 21533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green= (Quantum) (ping_info->trans_color.green); 21543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue= (Quantum) (ping_info->trans_color.blue); 21553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity= (Quantum) (ping_info->trans_color.gray); 21563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 21573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < 8) 21593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.opacity=(Quantum) ((( 21613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray)*255)/max_sample); 21623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.red=transparent_color.opacity; 21643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.green=transparent_color.opacity; 21653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent_color.blue=transparent_color.opacity; 21663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_READ_sBIT_SUPPORTED) 21703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_global_sbit) 21713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!(ping_info->valid & PNG_INFO_sBIT)) 21733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sBIT(ping,ping_info,&mng_info->global_sbit); 21743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 21763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 21773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_update_info(ping,ping_info); 21783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 21793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 21803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 21813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.left=0; 21823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.right=(long) ping_info->width; 21833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.top=0; 21843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_box.bottom=(long) ping_info->height; 21853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 21863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=ping_info->width; 21883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=ping_info->height; 21893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame=mng_info->image_box; 21903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_info->image_box; 21913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 21933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 21943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 21953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 21963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->compression=ZipCompression; 21973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=ping_info->width; 21983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=ping_info->height; 21993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) || 22003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 22013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) ping_info->color_type == PNG_COLOR_TYPE_GRAY)) 22023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 22043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=1UL << ping_info->bit_depth; 22053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 22063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 22073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=256; 22083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 22093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 65536L) 22103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=65536L; 22113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 22133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=(unsigned long) number_colors; 22223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG PLTE chunk: number_colors: %d.",number_colors); 22253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 22293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image colormap. 22323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (AcquireImageColormap(image,image->colors) == MagickFalse) 22343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 22353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 22363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 22383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 22393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 22413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 22423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); 22443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(palette[i].red); 22473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(palette[i].green); 22483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); 22493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 22543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale; 22553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 22563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=(QuantumRange/((1UL << ping_info->bit_depth)-1)); 22573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scale < 1) 22583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scale=1; 22593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 22603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=(Quantum) (i*scale); 22623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=(Quantum) (i*scale); 22633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=(Quantum) (i*scale); 22643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 22683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image scanlines. 22693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 22703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay != 0) 22713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found++; 22723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->number_scenes != 0) && (mng_info->scenes_found > (long) 22733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->first_scene+image_info->number_scenes))) 22743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 22753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping PNG image data for scene %ld", 22783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->scenes_found-1); 22793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 22803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2281a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 22823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 22833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()."); 22863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 22873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 22883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 22893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 22903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG IDAT chunk(s)"); 22913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 22923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(image->rows, 22933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->rowbytes*sizeof(*png_pixels)); 22943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 22953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(ping_info->rowbytes, 22963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 22973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 22983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 22993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Converting PNG pixels to pixel packets"); 23023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PNG pixels to pixel packets. 23043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 23063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG image is corrupt. 23093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 23113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2312a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 23133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 23153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info = DestroyQuantumInfo(quantum_info); 23163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 23173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 23183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 23193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 23203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() with error."); 23213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 23220c38ae55173384e633408067dc1a40d38dd9bd9ccristy image->columns=0; 23233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 23243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2325ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 2326ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 2327ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 23283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 23293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 23303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 23323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert image to DirectClass pixel packets. 23333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 23343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 23353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 23363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth; 23373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth=(long) ping_info->bit_depth; 23393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 23403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=(((int) ping_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) || 23413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || 23423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ping_info->valid & PNG_INFO_tRNS)) ? MagickTrue : MagickFalse; 23433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 23453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 23473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=ping_info->rowbytes*y; 23483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 23503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 2351abc8f408bb48da2d73cb760d61f16063695081d2cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 23523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 23533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 23543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (0 && (MAGICKCORE_QUANTUM_DEPTH == 8) && !defined(MAGICKCORE_HDRI_SUPPORT)) 23553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 16) 23563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 23583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 23593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 23603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 23613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=png_pixels+row_offset; 23623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=r; 23633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 23643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 23663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 23683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 23693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ping_info->valid & PNG_INFO_tRNS) && 23703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.opacity)) 23713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 23733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 23743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 23773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_RGB) 23803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 23823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 23833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 23853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 23863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 23873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 23883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 23893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 23903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((((*(p-6) << 8)|*(p-5)) == transparent_color.red) && 23913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-4) << 8)|*(p-3)) == transparent_color.green) && 23923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((*(p-2) << 8)|*(p-1)) == transparent_color.blue)) 23933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 23943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Cheap transparency */ 23953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=TransparentOpacity; 23963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 23973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 23983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 23993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 24023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=OpaqueOpacity; 24103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (4*image->columns); x != 0; x--) 24143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (2*image->columns); x != 0; x--) 24203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 24223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 24233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth == 8 && ping_info->color_type == PNG_COLOR_TYPE_GRAY) 24263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset); 24283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY || 24293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset); 24343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth == 8 && ping_info->color_type == PNG_COLOR_TYPE_RGB) 24363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset); 24383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_RGB || 24393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 24423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset); 24443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 24463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset); 24483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* (MAGICKCORE_QUANTUM_DEPTH != 8) */ 24493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) ping_info->color_type == PNG_COLOR_TYPE_GRAY) 24503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayQuantum,png_pixels+row_offset,exception); 24523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((int) ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 24533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GrayAlphaQuantum,png_pixels+row_offset,exception); 24553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((int) ping_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) 24563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBAQuantum,png_pixels+row_offset,exception); 24583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 24593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexQuantum,png_pixels+row_offset,exception); 24613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, 24633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RGBQuantum,png_pixels+row_offset,exception); 24643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 24653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 24663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 24693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 24713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 24723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 24733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 24753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* image->storage_class != DirectClass */ 24763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 24773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Quantum 24793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_scanline; 24803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register Quantum 24823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r; 24833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 24843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 24853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert grayscale image to PseudoClass pixel packets. 24863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 24873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? 24883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickTrue : MagickFalse; 24893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, 24903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->matte ? 2 : 1)*sizeof(*quantum_scanline)); 24913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_scanline == (Quantum *) NULL) 24923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 24933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 24943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 24953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (num_passes > 1) 24963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=ping_info->rowbytes*y; 24973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 24983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy row_offset=0; 24993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_row(ping,png_pixels+row_offset,NULL); 25003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 25013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 25023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 25043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=png_pixels+row_offset; 25053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 25063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (ping_info->bit_depth) 25073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 25093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 25113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit; 25123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-7; x > 0; x-=8) 25143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= 0; bit--) 25163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 25183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 25203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=7; bit >= (long) (8-(image->columns % 8)); bit--) 25223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p) & (0x01 << bit) ? 0x01 : 0x00); 25233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 2: 25273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-3; x > 0; x-=4) 25293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 6) & 0x03; 25313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x03; 25323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 2) & 0x03; 25333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x03; 25343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 4) != 0) 25363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=3; i >= (long) (4-(image->columns % 4)); i--) 25383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(Quantum) ((*p >> (i*2)) & 0x03); 25393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 25433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x > 0; x-=2) 25453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p >> 4) & 0x0f; 25473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++) & 0x0f; 25483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 25503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++ >> 4) & 0x0f; 25513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 25543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == 4) 25563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 25573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* In image.h, OpaqueOpacity is 0 25603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * TransparentOpacity is QuantumRange 25613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * In a PNG datastream, Opaque is QuantumRange 25623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and Transparent is 0. 25633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 25643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) (255-(*p++))); 25653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 25663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 25693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=*p++; 25703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 25713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 25733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 25753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 25773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 25783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 25793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 25803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 25813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 25823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 25833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 25843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 25853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 25863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=(Quantum) quantum; 25873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 25883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == 4) 25893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 25903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=((*p++) << 8); 25913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 25923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-quantum); 25933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 25943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 25953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 25963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 25973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 25983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum; 25993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors > 256) 26013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=((*p++) << 8); 26023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 26033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=0; 26043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum=(*r); 26053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum|=(*p++); 26063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r=quantum; 26073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r++; 26083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == 4) 26093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(*p << 8) | *(p+1); 26113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity*=65537L; 26123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-q->opacity); 26133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=2; 26143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ 26173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *r++=(*p++); 26183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* strip low byte */ 26193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == 4) 26203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) (QuantumRange-(*p++)); 26223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 26233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 26243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 26313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Transfer image scanline. 26353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy r=quantum_scanline; 26373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 26383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices[x]=(*r++); 26393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 26403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 26433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 26453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 26463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); 26493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2650b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 2651b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 26523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 26533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 26543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_read_end(ping,ping_info); 26553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < 26573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) image_info->first_scene && image->delay != 0) 26583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 26603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 26613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 26623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 26633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2664a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 26653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 26663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 26673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 26683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage() early."); 26693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 26703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 26713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 26723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ClassType 26743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class; 26753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 26773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image has a transparent background. 26783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 26793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy storage_class=image->storage_class; 26803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 26813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 26823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=storage_class; 26843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 26853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q == (PixelPacket *) NULL) 26863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 26873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 26883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (storage_class == PseudoClass) 26903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 26923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket; 26933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 26943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 26953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 26963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 26973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket=indices[x]; 26983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (indexpacket < ping_info->num_trans) 26993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleCharToQuantum((unsigned char) 27003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (255-ping_info->trans_alpha[(long) indexpacket])); 27013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=OpaqueOpacity; 27033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 27063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 27073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indexpacket=indices[x]; 27093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=image->colormap[(long) indexpacket].red; 27103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=q->red; 27113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=q->red; 27123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->red == transparent_color.opacity) 27133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 27143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=OpaqueOpacity; 27163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 27213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ScaleQuantumToChar(q->red) == transparent_color.red && 27233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->green) == transparent_color.green && 27243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(q->blue) == transparent_color.blue) 27253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) TransparentOpacity; 27263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=OpaqueOpacity; 27283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 27293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 27313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 27343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 8) 27363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->depth > 8) 27373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 27383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 27393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_get_text(ping,ping_info,&text,&num_text) != 0) 27403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) num_text; i++) 27413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check for a profile */ 27433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading PNG text chunk"); 27473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(text[i].key, "Raw profile type ",17) == 0) 27483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_read_raw_profile(image,image_info,text,(int) i); 27493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 27503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 27523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 27533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 27543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=text[i].text_length; 27553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=(char *) AcquireQuantumMemory(length+MaxTextExtent, 27563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*value)); 27573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value == (char *) NULL) 27583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 27603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 27613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 27623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 27633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value='\0'; 27653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(value,text[i].text,length+2); 27663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,text[i].key,value); 27673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 27683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 27693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Keyword: %s",text[i].key); 27703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=DestroyString(value); 27713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 27743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Store the object if necessary. 27763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id && !mng_info->frozen[object_id]) 27783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 27803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 27823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy create a new object buffer. 27833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 27843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]=(MngBuffer *) 27853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireMagickMemory(sizeof(MngBuffer)); 27863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] != (MngBuffer *) NULL) 27873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=(Image *) NULL; 27893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->reference_count=1; 27903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 27923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || 27933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->frozen) 27943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 27953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id] == (MngBuffer *) NULL) 27963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 27973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 27983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 27993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->frozen) 28003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 28013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot overwrite frozen MNG object buffer", 28023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 28033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 28073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width, 28083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height; 28093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 28113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit_depth, 28123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_type, 28133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy interlace_method, 28143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression_method, 28153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy filter_method; 28163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 28183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=DestroyImage 28193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->ob[object_id]->image); 28203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, 28213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 28223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[object_id]->image != (Image *) NULL) 28233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->image->file=(FILE *) NULL; 28243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 28263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cloning image for object buffer failed", 28273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 28283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_IHDR(ping,ping_info,&width,&height,&bit_depth,&color_type, 28293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &interlace_method,&compression_method,&filter_method); 28303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (width > 250000L || height > 250000L) 28313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping,"PNG Image dimensions are too large."); 28323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->width=width; 28333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->height=height; 28343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->color_type=color_type; 28353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->sample_depth=bit_depth; 28363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->interlace_method=interlace_method; 28373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->compression_method=compression_method; 28383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->filter_method=filter_method; 28393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_PLTE) 28403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 28423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 28433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 28453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy plte; 28463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy the PLTE to the object buffer. 28493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_get_PLTE(ping,ping_info,&plte,&number_colors); 28513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=number_colors; 28523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < number_colors; i++) 28533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 28543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte[i]=plte[i]; 28553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 28583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[object_id]->plte_length=0; 28593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 28613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 28633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 28643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 28653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_read_struct(&ping,&ping_info,&end_info); 28663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 28683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 2869a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 28703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 28713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 28733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 28743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOnePNGImage()"); 28753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 28763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* end of reading one PNG image */ 28783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 28793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28803ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 28813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 28823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 28833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 28843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 28853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 28873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 28883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 28903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 28913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 28933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 28943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 28963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 28973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 28983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 28993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 29003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 29013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 29043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 29063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 29073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 29083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 29093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 29103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 29113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 29123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadPNGImage()"); 29133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 29143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 29153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 29163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 29173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(FileOpenError,"UnableToOpenFile"); 29183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify PNG signature. 29203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,8,(unsigned char *) magic_number); 29223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) 29233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 29243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 29263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 29283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 29293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 29303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 29313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 29323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 29333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 29343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 29353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 29363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 29373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 29393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 29403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 29413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 29423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous != (Image *) NULL) 29443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (previous->signature != MagickSignature) 29463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 29473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 29483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 29493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error"); 29533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 29543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 29563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns == 0) || (image->rows == 0)) 29573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 29603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadPNGImage() with error."); 29613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 29623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG8") == 0) 29643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 29663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 29673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: Reduce to binary transparency */ 29693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG24") == 0) 29723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 29733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 29743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 29753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 29763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"PNG32") == 0) 29773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 29783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 29793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); 29803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 29813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 29823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 29853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 29863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 29873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 29883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d O n e J N G I m a g e % 29923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 29953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 29963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 29973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file 29983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (minus the 8-byte signature) and returns it. It allocates the memory 29993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 30003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 30013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 30033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadOneJNGImage method is: 30053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, 30073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ExceptionInfo *exception) 30083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 30103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o mng_info: Specifies a pointer to a MngInfo structure. 30123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 30143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 30163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 30173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 30183ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadOneJNGImage(MngInfo *mng_info, 30193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info, ExceptionInfo *exception) 30203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 30213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 30223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image, 30233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image, 30243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 30253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jng_image; 30263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 30283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *alpha_image_info, 30293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *color_image_info; 30303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 30323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 30333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 30353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 30363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 30383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height, 30393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width; 30403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 30423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 30433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth, 30443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method, 30453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method, 30463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 30473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 30483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method, 30493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method; 30503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 30523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *s; 30533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 30553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 30563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 30573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 30593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 30603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 30623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 30633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 30653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 30663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP, 30673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat, 30683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 30693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 30713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 30723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 30743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 30753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=0; 30763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=0; 30773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=0; 30783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=(Image *) NULL; 30793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=(Image *) NULL; 30803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) NULL; 30813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *) NULL; 30823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 30843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter ReadOneJNGImage()"); 30853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 30863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 30873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 30883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 30893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 30903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 30913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 30923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 30933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 30943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " AcquireNextImage()"); 30953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 30963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 30973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 30983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 30993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 31013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Signature bytes have already been read. 31043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickFalse; 31073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickFalse; 31083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 31093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (;;) 31103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 31123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 31133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 31153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 31163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 31183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 31193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 31213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new JNG chunk. 31223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 31233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 31243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 31253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 31263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 31273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 31283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 31293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 31303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); 31313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading JNG chunk type %c%c%c%c, length: %lu", 31353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 31363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX || count == 0) 31383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 31393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 31403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 31413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 31423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 31443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 31453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 31463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 31473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 31483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 31493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 31513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 31533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 31553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 31563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 31573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 31583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 31593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 31603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 16) 31623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 31643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 31653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 31663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 31673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=p[8]; 31683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth=p[9]; 31693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method=p[10]; 31703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method=p[11]; 31713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : 31723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy NoInterlace; 31733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=p[12]; 31743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=p[13]; 31753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method=p[14]; 31763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method=p[15]; 31773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 31783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 31793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_width: %16lu",jng_width); 31813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_width: %16lu",jng_height); 31833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_color_type: %16d",jng_color_type); 31853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_sample_depth: %3d", 31873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_sample_depth); 31883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_compression_method:%3d", 31903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_compression_method); 31913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_image_interlace_method: %3d", 31933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image_interlace_method); 31943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_sample_depth: %3d", 31963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth); 31973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 31983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_compression_method:%3d", 31993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method); 32003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_filter_method: %3d", 32023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_filter_method); 32033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " jng_alpha_interlace_method: %3d", 32053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_interlace_method); 32063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 32093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 32103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 32113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && 32153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || 32163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) 32173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o create color_image 32203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o open color_blob, attached to color_image 32213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color type has alpha) 32223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy open alpha_blob, attached to alpha_image 32233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=(ImageInfo *)AcquireMagickMemory(sizeof(ImageInfo)); 32263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image_info == (ImageInfo *) NULL) 32273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 32283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(color_image_info); 32293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=AcquireImage(color_image_info); 32303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (color_image == (Image *) NULL) 32313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 32323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating color_blob."); 32363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(color_image->filename); 32373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, 32383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 32393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 32413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) 32433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=(ImageInfo *) 32453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireMagickMemory(sizeof(ImageInfo)); 32463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image_info == (ImageInfo *) NULL) 32473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 32483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageInfo(alpha_image_info); 32493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=AcquireImage(alpha_image_info); 32503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (alpha_image == (Image *) NULL) 32513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 32533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 32543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 32553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating alpha_blob."); 32593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(alpha_image->filename); 32603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, 32613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 32623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 32633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 32643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 32653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 32673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[18]; 32683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing IHDR chunk to alpha_blob."); 32723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,8,(const unsigned char *) 32733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "\211PNG\r\n\032\n"); 32743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,13L); 32753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IHDR); 32763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IHDR,13L); 32773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+4,jng_width); 32783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(data+8,jng_height); 32793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[12]=jng_alpha_sample_depth; 32803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[13]=0; /* color_type gray */ 32813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[14]=0; /* compression method 0 */ 32823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[15]=0; /* filter_method 0 */ 32833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[16]=0; /* interlace_method 0 */ 32843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,17,data); 32853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); 32863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy reading_idat=MagickTrue; 32893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 32903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JDAT,4) == 0) 32923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 32933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 32943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk to color_image->blob 32953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 32963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 32973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 32983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 32993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAT chunk data to color_blob."); 33003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(color_image,length,chunk); 33023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IDAT,4) == 0) 33083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 33103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 33113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy IDAT header and chunk data to alpha_image->blob 33143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 33173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying IDAT chunk data to alpha_blob."); 33213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,(unsigned long) length); 33233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IDAT); 33243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,length); 33253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 33263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 33273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image, 33283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(crc32(0,data,4),chunk,(uInt) length)); 33293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) 33363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 33383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Copy chunk data to alpha_image->blob 33393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 33403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 33423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 33443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 33453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying JDAA chunk data to alpha_blob."); 33463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,length,chunk); 33483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JSEP,4) == 0) 33553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read_JSEP=MagickTrue; 33573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 33583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 33633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 2) 33653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 33673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=image->background_color.red; 33683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=image->background_color.red; 33693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 6) 33713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.red=ScaleCharToQuantum(p[1]); 33733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.green=ScaleCharToQuantum(p[3]); 33743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color.blue=ScaleCharToQuantum(p[5]); 33753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 33813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 33833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=((float) mng_get_long(p))*0.00001; 33843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 33853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 33863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 33873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 33883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 33893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 33913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 33923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.00001*mng_get_long(p); 33933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); 33943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); 33953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); 33963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); 33973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); 33983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); 33993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); 34003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 34063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 1) 34083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rendering_intent=(RenderingIntent) (p[0]+1); 34103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->gamma=0.45455f; 34113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.x=0.6400f; 34123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.red_primary.y=0.3300f; 34133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.x=0.3000f; 34143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.green_primary.y=0.6000f; 34153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.x=0.1500f; 34163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.blue_primary.y=0.0600f; 34173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.x=0.3127f; 34183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->chromaticity.white_point.y=0.3290f; 34193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_oFFs,4) == 0) 34253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 34273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_get_long(p); 34293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_get_long(&p[4]); 34303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] != 0) 34313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x/=10000; 34333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y/=10000; 34343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 34423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 34443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=(double) mng_get_long(p); 34463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=(double) mng_get_long(&p[4]); 34473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) p[8] == PNG_RESOLUTION_METER) 34483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 34503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->x_resolution=image->x_resolution/100.0f; 34513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->y_resolution=image->y_resolution/100.0f; 34523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 34593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 34603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 34613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 34623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 34673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 34693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 34703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4)) 34723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 34733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 34743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 34753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* IEND found */ 34783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 34803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finish up reading image data: 34813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o read main image from color_blob. 34833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close color_blob. 34853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o if (color_type has alpha) 34873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is PNG 34883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadPNG 34893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if alpha_encoding is JPEG 34903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read secondary image from alpha_blob via ReadJPEG 34913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o close alpha_blob. 34933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o copy intensity of secondary image into 34953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy opacity samples of main image. 34963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 34973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o destroy the secondary image. 34983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 34993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(color_image); 35013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading jng_image from color_blob."); 35043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(color_image_info->filename,MaxTextExtent,"%s", 35053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image->filename); 35063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info->ping=MagickFalse; /* To do: avoid this */ 35073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(color_image_info,exception); 35083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 35093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 35103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(color_image->filename); 35123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image=DestroyImage(color_image); 35133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy color_image_info=DestroyImageInfo(color_image_info); 35143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image == (Image *) NULL) 35163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 35173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Copying jng_image pixels to main image."); 35213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=jng_height; 35223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=jng_width; 35233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns*sizeof(PixelPacket); 35243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 35253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1,&image->exception); 35273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 35283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(q,s,length); 35293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 35303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 35313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 35333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 35343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type >= 12) 35363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method == 0) 35383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_byte 35403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[5]; 35413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,0x00000000L); 35423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(data,mng_IEND); 35433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0L); 35443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(alpha_image,4,data); 35453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); 35463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(alpha_image); 35483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 35493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 35503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading opacity from alpha_blob."); 35513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(alpha_image_info->filename,MaxTextExtent, 35533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",alpha_image->filename); 35543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=ReadImage(alpha_image_info,exception); 35563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 35573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 35583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s=GetVirtualPixels(jng_image,0,y,image->columns,1, 35603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 35613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 35623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 35633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 35643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 35653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 35663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns; x != 0; x--,q++,s++) 35673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=(Quantum) QuantumRange-s->red; 35693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (q->opacity != OpaqueOpacity) 35703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickTrue; 35713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 35733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 35743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(alpha_image->filename); 35763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image=DestroyImage(alpha_image); 35773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_image_info=DestroyImageInfo(alpha_image_info); 35783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_image != (Image *) NULL) 35793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_image=DestroyImage(jng_image); 35803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 35833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 35843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read the JNG image. 35853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 35863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->mng_type == 0) 35873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=jng_width; 35893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=jng_height; 35903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width == 0 && image->page.height == 0) 35923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=jng_width; 35943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=jng_height; 35953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 35963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x == 0 && image->page.y == 0) 35973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 35983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[mng_info->object_id]; 35993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 36003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 36023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 36033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[mng_info->object_id]; 36043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 36053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 36063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), 36073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2*GetBlobSize(image)); 36083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 36093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 36103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit ReadOneJNGImage()"); 36113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 36123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 36133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 36153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 36163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 36173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 36183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 36193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d J N G I m a g e % 36203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 36213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 36223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 36233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 36243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadJNGImage() reads a JPEG Network Graphics (JNG) image file 36263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (including the 8-byte signature) and returns it. It allocates the memory 36273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% necessary for the new Image structure and returns a pointer to the new 36283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image. 36293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 36313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadJNGImage method is: 36333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo 36353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% *exception) 36363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 36383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 36403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 36423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 36433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 36443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36453ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 36463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 36473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 36483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 36493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 36503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 36523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 36533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 36553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 36563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 36583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 36593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 36613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 36623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 36633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 36653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 36663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 36673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 36693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 36713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 36723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 36733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 36743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 36753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadJNGImage()"); 36763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 36773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 36783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 36793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 36803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 36813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"JNG") != 0) 36823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 36833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify JNG signature. 36853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 36873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) 36883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 36893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 36913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 36933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(*mng_info)); 36943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 36953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 36963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 36973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 36983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 36993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 37003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 37013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 37033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 37043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 37053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 37063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 37073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 37093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 37113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 37123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 37163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 37173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 37193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 37203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 37213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 37233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "exit ReadJNGImage() with error"); 37243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 37253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 37263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 37273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); 37283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(image); 37293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 37303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37323ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 37333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 37343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 37353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy page_geometry[MaxTextExtent]; 37363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 37383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image, 37393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *previous; 37403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 37423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 37433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 37453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object, 37463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 37473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id, 37483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found, 37493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend; 37503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile long 37523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 37533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 37553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 37563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickOffsetType 37583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset; 37593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 37613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 37623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 37643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb, 37653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb, 37663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb; 37673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 37693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 37703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color; 37713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 37743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 37753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 37773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 37783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 37803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 37813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 37833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level; 37843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile short 37863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop; 37873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 37893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 37903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 37913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 37943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 37953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=0, 37963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 37973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ 37983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 37993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 38003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout, 38013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout, 38023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height, 38043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width, 38053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 38073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 38093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay, 38103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay, 38113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay, 38123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay, 38133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 38143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers, 38153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=1, 38173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0, 38183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=0, 38193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=0; 38203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.top=0; 38223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.bottom=0; 38233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.left=0; 38243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb.right=0; 38253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.top=0; 38263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.bottom=0; 38273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.left=0; 38283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb.right=0; 38293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image_info->type=OptimizeType (new in version 5.4.0) to get the 38323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy following optimizations: 38333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o 16-bit depth is reduced to 8 if all pixels contain samples whose 38353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy high byte and low byte are identical. 38363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Opaque matte channel is removed. 38373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o If matte channel is present but only one transparent color is 38383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy present, RGB+tRNS is written instead of RGBA 38393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Grayscale images are reduced to 1, 2, or 4 bit depth if 38403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy this can be done without loss. 38413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy o Palette is sorted to remove unused entries and to put a 38423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent color first, if PNG_SORT_PALETTE is also defined. 38433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 38473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 38493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 38503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); 38513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 38523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 38533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter ReadMNGImage()"); 38543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=AcquireImage(image_info); 38553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) NULL; 38563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 38573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 38583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 38593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 38603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 38613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 38623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 38643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 38663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 38673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 38683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 38703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 38723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 38733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 38743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) 38753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 38763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 38773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 38793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 38813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magic_number[MaxTextExtent]; 38823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 38833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Verify MNG signature. 38853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); 38873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) 38883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 38893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 38903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize some nonzero members of the MngInfo structure. 38913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 38923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 38933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 38943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].right=(long) PNG_UINT_31_MAX; 38953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i].bottom=(long) PNG_UINT_31_MAX; 38963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[0]=MagickTrue; 38983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 38993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickTrue; 39003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=0; 39013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickFalse; /* should be False when converting or mogrifying */ 39033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 39053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=0; 39063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=0; 39073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1; 39083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 39093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=0; 39103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 39113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 39123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 39133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=MagickFalse; 39153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 39173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color=image->background_color; 39183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=mng_info->frame; 39203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=mng_info->frame; 39213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 39223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 39243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[MaxTextExtent]; 39253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(image_info->magick,"MNG") == 0) 39273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 39293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *chunk; 39303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 39323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read a new chunk. 39333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 39343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0]='\0'; 39353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(type,"errr",MaxTextExtent); 39363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=ReadBlobMSBLong(image); 39373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(size_t) ReadBlob(image,4,(unsigned char *) type); 39383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 39413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reading MNG chunk type %c%c%c%c, length: %lu", 39423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[0],type[1],type[2],type[3],length); 39433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > PNG_UINT_31_MAX) 39453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickFalse; 39463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0) 39473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"CorruptImage"); 39483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=NULL; 39493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) NULL; 39503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 39513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); 39533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (chunk == (unsigned char *) NULL) 39543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 39553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 39563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[i]=(unsigned char) ReadBlobByte(image); 39573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=chunk; 39583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobMSBLong(image); /* read crc word */ 39603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 39613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if !defined(JNG_SUPPORTED) 39623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_JHDR,4) == 0) 39633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 39653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->jhdr_warning == 0) 39663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 39673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"JNGCompressNotSupported","`%s'",image->filename); 39683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->jhdr_warning++; 39693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 39713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DHDR,4) == 0) 39723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 39743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->dhdr_warning == 0) 39753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 39763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DeltaPNGNotSupported","`%s'",image->filename); 39773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->dhdr_warning++; 39783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MEND,4) == 0) 39803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 39813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skip_to_iend) 39823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IEND,4) == 0) 39843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickFalse; 39853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 39863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 39873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 39893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skip to IEND."); 39903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 39913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 39923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MHDR,4) == 0) 39933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 39943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 39953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 39963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 39973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 39983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 39993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG width: %lu",mng_info->mng_width); 40023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " MNG height: %lu",mng_info->mng_height); 40043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=8; 40063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=(unsigned long) mng_get_long(p); 40073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second == 0) 40083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=0; 40093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 40103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=1UL*image->ticks_per_second/ 40113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second; 40123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 40133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=0; 40143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 40153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=16; 40173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy simplicity=(unsigned long) mng_get_long(p); 40183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=1; /* Full MNG */ 40203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 11) == 11)) 40213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=2; /* LC */ 40223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((simplicity != 0) && ((simplicity | 9) == 9)) 40233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_type=3; /* VLC */ 40243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 40253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type != 3) 40263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy insert_layers=MagickTrue; 40273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 40283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 40293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 40323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 40333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 40343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 40353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 40363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 40373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 40383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->mng_width > 65535L) || 40413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height > 65535L)) 40423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); 40433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(page_geometry,MaxTextExtent,"%lux%lu+0+0", 40443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 40453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.left=0; 40463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.right=(long) mng_info->mng_width; 40473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.top=0; 40483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frame.bottom=(long) mng_info->mng_height; 40493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=default_fb=previous_fb=mng_info->frame; 40503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < MNG_MAX_OBJECTS; i++) 40513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_info->frame; 40523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_TERM,4) == 0) 40573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 40593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=0; 40603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 40623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 40633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy repeat=p[0]; 40643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (repeat == 3) 40653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=(png_uint_32) mng_get_long(&p[2]); 40673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=(png_uint_32) mng_get_long(&p[6]); 40683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == PNG_UINT_31_MAX) 40693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_iterations=0; 40703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 40713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickTrue; 40723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 40743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " repeat=%d",repeat); 40773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " final_delay=%ld",final_delay); 40793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 40803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->iterations=%ld",image->iterations); 40813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 40833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 40843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 40853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_DEFI,4) == 0) 40863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 40883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", 40903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 40913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=(p[0] << 8) | p[1]; 40923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 2 && object_id != 0) 40933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 40943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", 40953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 40963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (object_id > MNG_MAX_OBJECTS) 40973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 40983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 40993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Instead ofsuing a warning we should allocate a larger 41003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo structure and continue. 41013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 41033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"object id too large","`%s'",image->filename); 41043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy object_id=MNG_MAX_OBJECTS; 41053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[object_id]) 41073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->frozen[object_id]) 41083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 41113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 41123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "DEFI cannot redefine a frozen MNG object","`%s'", 41133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 41143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 41173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 2) 41183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->invisible[object_id]=p[2]; 41193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object offset info. 41213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 41233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[object_id]=(long) ((p[4] << 24) | (p[5] << 16) | 41253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 41263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[object_id]=(long) ((p[8] << 24) | (p[9] << 16) | 41273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[10] << 8) | p[11]); 41283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 41293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " x_off[%d]: %lu",object_id,mng_info->x_off[object_id]); 41323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 41333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " y_off[%d]: %lu",object_id,mng_info->y_off[object_id]); 41343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Extract object clipping info. 41383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 27) 41403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, 41413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &p[12]); 41423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_bKGD,4) == 0) 41463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickFalse; 41483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 5) 41493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.red= 41513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 41523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.green= 41533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 41543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_global_bkgd.blue= 41553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 41563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_bkgd=MagickTrue; 41573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BACK,4) == 0) 41623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 41643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 41653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=p[6]; 41663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 41673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mandatory_back=0; 41683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mandatory_back && length > 5) 41693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.red= 41713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); 41723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.green= 41733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); 41743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.blue= 41753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); 41763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_color.opacity=OpaqueOpacity; 41773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 41793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 41803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_background_object=(p[7] << 8) | p[8]; 41813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 41833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 41843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 41853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 41863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PLTE,4) == 0) 41873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 41893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global PLTE. 41903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 41913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length && (length < 769)) 41923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->global_plte == (png_colorp) NULL) 41943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, 41953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*mng_info->global_plte)); 41963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) (length/3); i++) 41973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 41983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=p[3*i]; 41993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=p[3*i+1]; 42003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=p[3*i+2]; 42013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=length/3; 42033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 42053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 42063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].red=i; 42083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].green=i; 42093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte[i].blue=i; 42103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=256; 42133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_plte_length=0; 42163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_tRNS,4) == 0) 42203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* read global tRNS */ 42223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 257) 42243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 42253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=p[i]; 42263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_LOOSE 42283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for ( ; i < 256; i++) 42293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns[i]=255; 42303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 42313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_trns_length=length; 42323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_gAMA,4) == 0) 42363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 4) 42383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 42403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma; 42413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy igamma=mng_get_long(p); 42433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_gamma=((float) igamma)*0.00001; 42443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickTrue; 42453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_gama=MagickFalse; 42483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_cHRM,4) == 0) 42533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global cHRM 42563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length == 32) 42583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); 42603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); 42613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); 42623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.red_primary.y=0.00001* 42633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[12]); 42643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.x=0.00001* 42653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[16]); 42663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.green_primary.y=0.00001* 42673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[20]); 42683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.x=0.00001* 42693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[24]); 42703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_chrm.blue_primary.y=0.00001* 42713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_get_long(&p[28]); 42723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickTrue; 42733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_chrm=MagickFalse; 42763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sRGB,4) == 0) 42803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global sRGB. 42833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 42843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 42853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_srgb_intent=(RenderingIntent) (p[0]+1); 42873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickTrue; 42883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 42903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_srgb=MagickFalse; 42913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 42923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 42933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 42943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_iCCP,4) == 0) 42953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 42963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do. */ 42973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 42983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 42993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read global iCCP. 43003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 43033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 43043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_FRAM,4) == 0) 43063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type == 3) 43083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 43093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", 43103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 43113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) 43123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 43133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 43143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=default_frame_timeout; 43153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=default_fb; 43163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 43173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p[0]) 43183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=p[0]; 43193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 43213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_mode=%d",mng_info->framing_mode); 43223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 43233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note the delay and frame clipping boundaries. 43263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* framing mode */ 43283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (*p && ((p-chunk) < (long) length)) 43293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name */ 43303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* frame name terminator */ 43313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p-chunk) < (long) (length-4)) 43323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 43343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay, 43353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout, 43363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping; 43373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 43383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_delay=(*p++); 43393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_timeout=(*p++); 43403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy change_clipping=(*p++); 43413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; /* change_sync */ 43423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay) 43433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=(1UL*image->ticks_per_second* 43453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 43463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 43473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_delay=frame_delay; 43483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 43493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 43513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_delay=%ld",frame_delay); 43523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_timeout) 43543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_timeout=(1UL*image->ticks_per_second* 43563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_get_long(p))/mng_info->ticks_per_second); 43573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_delay == 2) 43583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_frame_timeout=frame_timeout; 43593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 43603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 43623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Framing_timeout=%ld",frame_timeout); 43633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping) 43653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb=mng_read_box(previous_fb,(char) p[0],&p[1]); 43673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=17; 43683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_fb=fb; 43693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 43713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Frame_clipping: L=%ld R=%ld T=%ld B=%ld", 43723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy fb.left, fb.right,fb.top,fb.bottom); 43733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (change_clipping == 2) 43743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default_fb=fb; 43753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 43783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=fb; 43793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip=mng_minimum_box(fb,mng_info->frame); 43803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width=(unsigned long) (mng_info->clip.right 43813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.left); 43823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_height=(unsigned long) (mng_info->clip.bottom 43833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -mng_info->clip.top); 43843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the frame if framing_mode is 4. 43863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 43883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 43893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 43903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " subframe_width=%lu, subframe_height=%lu", 43913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy subframe_width, subframe_height); 43923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 4) && 43933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height)) 43943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 43953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 43963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 43973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 43983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 43993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 44013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 44023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 44043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 44053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 44063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 44083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 44103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 44113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 44133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 44143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 44153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 44183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 44193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 44203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 44213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 44223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 44233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 44243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 44253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 44263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 44273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 44283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 44293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 44303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 44313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 44323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 44333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 44353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLIP,4) == 0) 44393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 44413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 44423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 44433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read CLIP. 44463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 44483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 44493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(int) first_object; i <= (int) last_object; i++) 44503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 44523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 44543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box; 44553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy box=mng_info->object_clip[i]; 44573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_clip[i]=mng_read_box(box,(char) p[4],&p[5]); 44583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SAVE,4) == 0) 44643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 44663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i]) 44673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->frozen[i]=MagickTrue; 44693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 44703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ob[i] != (MngBuffer *) NULL) 44713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ob[i]->frozen=MagickTrue; 44723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 44733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 44753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 44763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 44773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) 44803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 44823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DISC or SEEK. 44833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 44843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((length == 0) || !memcmp(type,mng_SEEK,4)) 44853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=1; i < MNG_MAX_OBJECTS; i++) 44873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 44883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 44903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 44923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy j; 44933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 44943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (j=0; j < (long) length; j+=2) 44953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 44963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=p[j] << 8 | p[j+1]; 44973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoDiscardObject(mng_info,i); 44983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 44993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 45013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MOVE,4) == 0) 45053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 45073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object, 45083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object; 45093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy read MOVE 45123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_object=(p[0] << 8) | p[1]; 45143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_object=(p[2] << 8) | p[3]; 45153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=(long) first_object; i <= (long) last_object; i++) 45163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->exists[i] && !mng_info->frozen[i]) 45183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 45203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair; 45213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngPair 45233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair; 45243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.a=mng_info->x_off[i]; 45263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_pair.b=mng_info->y_off[i]; 45273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy new_pair=mng_read_pair(old_pair,(int) p[4],&p[5]); 45283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->x_off[i]=new_pair.a; 45293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->y_off[i]=new_pair.b; 45303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_LOOP,4) == 0) 45373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long loop_iters=1; 45393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 45403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=1; /* mark loop active */ 45413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Record starting point. 45433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_iters=mng_get_long(&chunk[1]); 45453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " LOOP level %ld has %ld iterations ",loop_level,loop_iters); 45483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (loop_iters == 0) 45493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=loop_level; 45503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_jump[loop_level]=TellBlob(image); 45533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]=loop_iters; 45543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]=0; 45563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 45573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 45583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_ENDL,4) == 0) 45603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=chunk[0]; 45623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop > 0) 45633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (skipping_loop == loop_level) 45653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Found end of zero-iteration loop. 45683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skipping_loop=(-1); 45703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 45713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[loop_level] == 1) 45763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_count[loop_level]--; 45783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_iteration[loop_level]++; 45793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 45803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 45813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " ENDL: LOOP level %ld has %ld remaining iterations ", 45823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level,mng_info->loop_count[loop_level]); 45833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_count[loop_level] != 0) 45843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,mng_info->loop_jump[loop_level], 45863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SEEK_SET); 45873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 45883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError, 45893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "ImproperImageHeader"); 45903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 45913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 45923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 45933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy short 45943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level; 45953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 45963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 45973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Finished loop. 45983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 45993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->loop_active[loop_level]=0; 46003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(-1); 46013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < loop_level; i++) 46023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->loop_active[i] == 1) 46033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy last_level=(short) i; 46043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy loop_level=last_level; 46053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 46093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 46103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_CLON,4) == 0) 46123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->clon_warning == 0) 46143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 46153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"CLON is not implemented yet","`%s'", 46163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 46173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clon_warning++; 46183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_MAGN,4) == 0) 46203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 46223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first, 46233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last, 46243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb, 46253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml, 46263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr, 46273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt, 46283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx, 46293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my, 46303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 46313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 46323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 1) 46343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=(p[0] << 8) | p[1]; 46353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_first=0; 46373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 3) 46383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=(p[2] << 8) | p[3]; 46393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_last=magn_first; 46413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef MNG_OBJECT_BUFFERS 46423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first || magn_last) 46433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 46443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 46453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 46463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 46473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MAGN is not implemented yet for nonzero objects", 46483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 46493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 46503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 46513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 46523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 4) 46533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=p[4]; 46543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=0; 46563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 6) 46583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=(p[5] << 8) | p[6]; 46593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 46613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mx == 0) 46623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mx=1; 46633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 46653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=(p[7] << 8) | p[8]; 46663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=magn_mx; 46683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_my == 0) 46693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_my=1; 46703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 10) 46723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=(p[9] << 8) | p[10]; 46733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=magn_mx; 46753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_ml == 0) 46763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_ml=1; 46773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 12) 46793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=(p[11] << 8) | p[12]; 46803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=magn_mx; 46823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mr == 0) 46833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mr=1; 46843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 14) 46863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=(p[13] << 8) | p[14]; 46873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=magn_my; 46893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mt == 0) 46903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mt=1; 46913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 16) 46933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=(p[15] << 8) | p[16]; 46943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 46953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=magn_my; 46963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_mb == 0) 46973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_mb=1; 46983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 46993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 47003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=p[17]; 47013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=magn_methx; 47033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 47043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx > 5 || magn_methy > 5) 47053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_warning == 0) 47063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 47083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 47093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Unknown MAGN method in MNG datastream","`%s'", 47103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_warning++; 47123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_OBJECT_BUFFERS 47143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Magnify existing objects in the range magn_first to magn_last */ 47153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 47163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_first == 0 || magn_last == 0) 47173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save the magnification factors for object 0 */ 47193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mb=magn_mb; 47203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_ml=magn_ml; 47213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mr=magn_mr; 47223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mt=magn_mt; 47233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_mx=magn_mx; 47243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_my=magn_my; 47253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methx=magn_methx; 47263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->magn_methy=magn_methy; 47273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_PAST,4) == 0) 47303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->past_warning == 0) 47323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"PAST is not implemented yet","`%s'", 47343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->past_warning++; 47363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_SHOW,4) == 0) 47383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->show_warning == 0) 47403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"SHOW is not implemented yet","`%s'", 47423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->show_warning++; 47443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_sBIT,4) == 0) 47463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 4) 47483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickFalse; 47493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.gray=p[0]; 47523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.red=p[0]; 47533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.green=p[1]; 47543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.blue=p[2]; 47553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_sbit.alpha=p[3]; 47563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_sbit=MagickTrue; 47573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYs,4) == 0) 47603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 8) 47623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_x_pixels_per_unit= 47643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(p); 47653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_y_pixels_per_unit= 47663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) mng_get_long(&p[4]); 47673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->global_phys_unit_type=p[8]; 47683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickTrue; 47693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 47713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_global_phys=MagickFalse; 47723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_pHYg,4) == 0) 47743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->phyg_warning == 0) 47763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"pHYg is not implemented.","`%s'",image->filename); 47783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->phyg_warning++; 47793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 47803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_BASI,4) == 0) 47813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 47823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 47833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->basi_warning == 0) 47843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 47853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"BASI is not implemented yet","`%s'", 47863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 47873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->basi_warning++; 47883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_BASI_SUPPORTED 47893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_width=(unsigned long) ((p[0] << 24) | (p[1] << 16) | 47903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[2] << 8) | p[3]); 47913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_height=(unsigned long) ((p[4] << 24) | (p[5] << 16) | 47923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (p[6] << 8) | p[7]); 47933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_color_type=p[8]; 47943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_compression_method=p[9]; 47953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_filter_type=p[10]; 47963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_interlace_method=p[11]; 47973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 11) 47983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=(p[12] << 8) & p[13]; 47993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_red=0; 48013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 13) 48023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=(p[14] << 8) & p[15]; 48033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_green=0; 48053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 15) 48063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=(p[16] << 8) & p[17]; 48073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_blue=0; 48093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 17) 48103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=(p[18] << 8) & p[19]; 48113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (basi_sample_depth == 16) 48143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=65535L; 48153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_alpha=255; 48173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length > 19) 48193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=p[20]; 48203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy basi_viewable=0; 48223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 48243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 48253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) 48273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 48283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy && memcmp(type,mng_JHDR,4) 48293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ) 48313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Not an IHDR or JHDR chunk */ 48333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length) 48343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 48353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 48363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Process IHDR */ 48383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 48393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 48403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); 48413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->exists[object_id]=MagickTrue; 48423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->viewable[object_id]=MagickTrue; 48433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->invisible[object_id]) 48443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 48463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 48473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping invisible object"); 48483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy skip_to_iend=MagickTrue; 48493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 48503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy continue; 48513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 48533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 8) 48543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 48553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_width=(unsigned long) mng_get_long(p); 48563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_height=(unsigned long) mng_get_long(&p[4]); 48573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 48583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk=(unsigned char *) RelinquishMagickMemory(chunk); 48593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 48603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a transparent background layer behind the entire animation 48623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if it is not full screen. 48633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 48653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && mng_type && first_mng_object) 48663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || 48683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_width < mng_info->mng_width) || 48693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.right < (long) mng_info->mng_width) || 48703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_height < mng_info->mng_height) || 48713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->clip.bottom < (long) mng_info->mng_height)) 48723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 48743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 48773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 48793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 48803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 48823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 48833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 48843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 48863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 48883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 48893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 48903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 48913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 48923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 48933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 48943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 48953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 48963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 48973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Make a background rectangle. 48983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 48993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 49003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 49013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 49023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 49033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 49043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 49053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 49063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 49073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 49083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted transparent background layer, W=%lud, H=%lud", 49113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_width,mng_info->mng_height); 49123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer behind the upcoming image if 49163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy framing_mode is 3, and we haven't already inserted one. 49173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && (mng_info->framing_mode == 3) && 49193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (subframe_width) && (subframe_height) && (simplicity == 0 || 49203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (simplicity & 0x08))) 49213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 49353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 49383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 49403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 49413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 49423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 49453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 49463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=subframe_width; 49473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=subframe_height; 49483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=subframe_width; 49493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=subframe_height; 49503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->clip.left; 49513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->clip.top; 49523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 49533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 49543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 49553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 49563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 49573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Inserted background layer, L=%ld, R=%ld, T=%ld, B=%ld", 49583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.left,mng_info->clip.right, 49593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->clip.top,mng_info->clip.bottom); 49603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* MNG_INSERT_LAYERS */ 49623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy first_mng_object=MagickFalse; 49633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 49643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 49663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 49673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 49683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 49693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 49703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 49723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 49733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 49743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 49763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 49783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 49793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetBlobSize(image)); 49803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 49813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 49823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (term_chunk_found) 49833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 49853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy term_chunk_found=MagickFalse; 49863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickFalse; 49893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) 49903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 49913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=frame_delay; 49923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy frame_delay=default_frame_delay; 49933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 49943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 49953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=0; 49963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 49973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 49983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=mng_info->x_off[object_id]; 49993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=mng_info->y_off[object_id]; 50003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 50013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 50023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Seek back to the beginning of the IHDR or JHDR chunk's length field. 50033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 50043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], 50073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy type[2],type[3]); 50083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy offset=SeekBlob(image,-((long) length+12),SEEK_CUR); 50093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (offset < 0) 50103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 50113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous=image; 50143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->mng_type=mng_type; 50163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->object_id=object_id; 50173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(type,mng_IHDR,4) == 0) 50193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOnePNGImage(mng_info,image_info,exception); 50203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 50213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=ReadOneJNGImage(mng_info,image_info,exception); 50233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 50243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image == (Image *) NULL) 50263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsImageObject(previous) != MagickFalse) 50283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) DestroyImageList(previous); 50303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(previous); 50313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns == 0 || image->rows == 0) 50363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 50383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 50393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 50403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 50413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 50433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_type) 50453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngBox 50473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box; 50483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx || mng_info->magn_methy) 50503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 50523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height, 50533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width; 50543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 50563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 50573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Processing MNG MAGN chunk"); 50583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 50593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methx == 1) 50603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=mng_info->magn_ml; 50623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 50633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr; 50643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 50653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-2)*(mng_info->magn_mx); 50663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width=image->columns; 50703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 1) 50713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_ml-1; 50723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 2) 50733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += mng_info->magn_mr-1; 50743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->columns > 3) 50753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width += (image->columns-3)*(mng_info->magn_mx-1); 50763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->magn_methy == 1) 50783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=mng_info->magn_mt; 50803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 50813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb; 50823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 50833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-2)*(mng_info->magn_my); 50843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 50863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height=image->rows; 50883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 1) 50893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mt-1; 50903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 2) 50913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += mng_info->magn_mb-1; 50923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rows > 3) 50933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_height += (image->rows-3)*(mng_info->magn_my-1); 50943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 50953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magnified_height > image->rows || 50963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magnified_width > image->columns) 50973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 50983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 50993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *large_image; 51003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 51023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy; 51033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 51053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m, 51063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 51073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 51093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 51103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 51123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *n, 51133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 51143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PixelPacket 51163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next, 51173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *prev; 51183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 51203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx, 51213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy; 51223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 51253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocate magnified image"); 51293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 51303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 51313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 51333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 51343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 51353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image=SyncNextImageInList(image); 51383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->columns=magnified_width; 51403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->rows=magnified_height; 51413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=mng_info->magn_methx; 51433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=mng_info->magn_methy; 51443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 51463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM unsigned short 51473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 51483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 51503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Scale pixels to unsigned shorts to prevent 51513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy overflow of intermediate values of interpolations 51523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 51533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 51543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1, 51563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 51573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 51583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleQuantumToShort(q->red); 51603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleQuantumToShort(q->green); 51613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleQuantumToShort(q->blue); 51623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleQuantumToShort(q->opacity); 51633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 51643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 51663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 51673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 51703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define QM Quantum 51713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 51723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 51743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 51753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 51763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 51773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy large_image->background_color.opacity=OpaqueOpacity; 51783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(large_image); 51793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 51803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=2; 51813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 51823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methx=3; 51833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 51843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=2; 51853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 51863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy magn_methy=3; 51873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 51883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the rows into the right side of the large image */ 51903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 51913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 51923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 51933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the rows to %lu",large_image->rows); 51943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 51953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy yy=0; 51963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->columns; 51973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*next)); 51983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) AcquireQuantumMemory(length,sizeof(*prev)); 51993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((prev == (PixelPacket *) NULL) || 52003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next == (PixelPacket *) NULL)) 52013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 52033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 52043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError, 52053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 52063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,0,image->columns,1,exception); 52083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 52093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 52103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y == 0) 52123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mt; 52133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-2) 52143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 52153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy <= 1 && y == (long) image->rows-1) 52163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mb; 52173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy > 1 && y == (long) image->rows-1) 52183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 52193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_my; 52213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=prev; 52223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=next; 52233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=n; 52243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (y < (long) image->rows-1) 52253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=GetAuthenticPixels(image,0,y+1,image->columns,1, 52273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception); 52283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickMemory(next,n,length); 52293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++, yy++) 52313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 52333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 52343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(yy < (long) large_image->rows); 52363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=prev; 52373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=next; 52383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(large_image,0,yy,large_image->columns, 52393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1,exception); 52403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q+=(large_image->columns-image->columns); 52413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 52423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: get color as function of indices[x] */ 52443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 52453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 52463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 52493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 52503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy <= 1) 52513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); /* replicate previous */ 52533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methy == 2 || magn_methy == 4) 52553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 52573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 52583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 52613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) (((long) (2*i*((*n).red 52623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m))/((long) (m*2)) 52633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).red); 52643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) (((long) (2*i*((*n).green 52653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green)+m))/((long) (m*2)) 52663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).green); 52673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) (((long) (2*i*((*n).blue 52683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m))/((long) (m*2)) 52693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).blue); 52703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 52713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) 52723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (2*i*((*n).opacity 52733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)) 52743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).opacity); 52753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 4) 52773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 52793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 52803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 52813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 52833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methy == 3 || magn_methy == 5) */ 52863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 52883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 52893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 52903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 52913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 52923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methy == 5) 52933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 52943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) (((long) (2*i*((*n).opacity 52953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m))/((long) (m*2)) 52963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 52973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 52993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 53003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 53013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels++; 53023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* x */ 53033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(large_image,exception) == 0) 53043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 53053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* i */ 53063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* y */ 53073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy prev=(PixelPacket *) RelinquishMagickMemory(prev); 53083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=(PixelPacket *) RelinquishMagickMemory(next); 53093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=image->columns; 53113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Delete original image"); 53153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DeleteImageFromList(&image); 53173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=large_image; 53193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 53213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* magnify the columns */ 53233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 53243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 53253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Magnify the columns to %lu",image->columns); 53263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 53283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register PixelPacket 53303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 53313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 53323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 53333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=q+(image->columns-length); 53343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n=pixels+1; 53353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) (image->columns-length); 53363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x < (long) image->columns; x++) 53373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x == (long) (image->columns-length)) 53393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_ml; 53403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-2) 53413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 53423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx <= 1 && x == (long) image->columns-1) 53433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mr; 53443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx > 1 && x == (long) image->columns-1) 53453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=1; 53463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy m=(long) mng_info->magn_mx; 53483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < m; i++) 53493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx <= 1) 53513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* replicate previous */ 53533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (magn_methx == 2 || magn_methx == 4) 53563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i == 0) 53583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).red=(QM) ((2*i*((*n).red 53633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).red)+m) 53643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).red); 53653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).green=(QM) ((2*i*((*n).green 53663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).green) 53673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +m)/((long) (m*2))+(*pixels).green); 53683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).blue=(QM) ((2*i*((*n).blue 53693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).blue)+m) 53703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /((long) (m*2))+(*pixels).blue); 53713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 53723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 53733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m)/((long) (m*2)) 53743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 53753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 4) 53773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*pixels).opacity+0; 53813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(*n).opacity+0; 53833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* if (magn_methx == 3 || magn_methx == 5) */ 53863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Replicate nearest */ 53883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i <= ((m+1) << 1)) 53893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*pixels); 53903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 53913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q=(*n); 53923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx == 5) 53933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 53943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Interpolate */ 53953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (*q).opacity=(QM) ((2*i*((*n).opacity 53963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy -(*pixels).opacity)+m) /((long) (m*2)) 53973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +(*pixels).opacity); 53983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 53993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy n++; 54033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 54043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 54063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 32) 54093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (magn_methx != 1 || magn_methy != 1) 54103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Rescale pixels to Quantum 54133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 54153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=GetAuthenticPixels(image,0,y,image->columns,1,exception); 54173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 54183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->red=ScaleShortToQuantum(q->red); 54203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->green=ScaleShortToQuantum(q->green); 54213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->blue=ScaleShortToQuantum(q->blue); 54223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q->opacity=ScaleShortToQuantum(q->opacity); 54233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q++; 54243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 54263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 54273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 54303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished MAGN processing"); 54333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_box is with respect to the upper left corner of the MNG. 54383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; 54403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; 54413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; 54423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; 54433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->clip); 54443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->frame); 54453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); 54463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left != (mng_info->image_box.left 54473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 54483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.right != (mng_info->image_box.right 54493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->x_off[object_id])) || 54503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top != (mng_info->image_box.top 54513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id])) || 54523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.bottom != (mng_info->image_box.bottom 54533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy +mng_info->y_off[object_id]))) 54543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 54563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 54573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Crop the PNG image"); 54583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((crop_box.left < crop_box.right) && 54593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (crop_box.top < crop_box.bottom)) 54603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 54623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *im; 54633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 54653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info; 54663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 54673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Crop_info is with respect to the upper left corner of 54693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the image. 54703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.x=(crop_box.left-mng_info->x_off[object_id]); 54723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.y=(crop_box.top-mng_info->y_off[object_id]); 54733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.width=(unsigned long) (crop_box.right-crop_box.left); 54743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crop_info.height=(unsigned long) (crop_box.bottom-crop_box.top); 54753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 54763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 54773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 54783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 54793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=CropImage(image,&crop_info,exception); 54803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (im != (Image *) NULL) 54813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=im->columns; 54833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=im->rows; 54843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy im=DestroyImage(im); 54853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=image->columns; 54863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=image->rows; 54873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=crop_box.left; 54883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=crop_box.top; 54893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 54913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 54923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 54933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 54943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No pixels in crop area. The MNG spec still requires 54953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy a layer, though, so make a single transparent pixel in 54963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the top left corner. 54973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 54983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=1; 54993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=1; 55003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=2; 55013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 55023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=1; 55033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=1; 55043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 55053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 55063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifndef PNG_READ_EMPTY_PLTE_SUPPORTED 55093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=mng_info->image; 55103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (MAGICKCORE_QUANTUM_DEPTH == 16) /* TO DO: treat Q:32 */ 55143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Determine if bit depth can be reduced from 16 to 8. 55153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * Note that the method GetImageDepth doesn't check background 55163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * and doesn't handle PseudoClass specially. Also it uses 55173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * multiplication and division by 257 instead of shifting, so 55183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * might be slower. 55193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 55203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize && image->depth == 16) 55213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 55233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce; 55243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const PixelPacket 55263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 55273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->background_color.red >> 8) & 55293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 0xff) 55303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.red & 0xff)) && 55313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.green >> 8) & 0xff) 55323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.green & 0xff)) && 55333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->background_color.blue >> 8) & 0xff) 55343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->background_color.blue & 0xff))); 55353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce && image->storage_class == PseudoClass) 55363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int indx; 55383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (indx=0; indx < (long) image->colors; indx++) 55403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(((((unsigned long) image->colormap[indx].red >> 55423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8) & 0xff) 55433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].red & 0xff)) && 55443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].green >> 8) & 0xff) 55453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].green & 0xff)) && 55463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) image->colormap[indx].blue >> 8) & 0xff) 55473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy == ((unsigned long) image->colormap[indx].blue & 0xff))); 55483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == MagickFalse) 55493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ok_to_reduce != MagickFalse) && 55533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class != PseudoClass)) 55543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 55563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 55573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 55593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 55603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 55613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 55623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 55643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 55653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 55673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ok_to_reduce=(( 55693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->red >> 8) & 0xff) == 55703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->red & 0xff)) && 55713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->green >> 8) & 0xff) == 55723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->green & 0xff)) && 55733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((((unsigned long) p->blue >> 8) & 0xff) == 55743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->blue & 0xff)) && 55753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((!image->matte || 55763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (((unsigned long) p->opacity >> 8) & 0xff) == 55773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((unsigned long) p->opacity & 0xff))))); 55783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce == 0) 55793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 55813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 55833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 55843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ok_to_reduce) 55873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 55893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 55903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 55913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Reducing PNG bit depth to 8 without loss of info"); 55923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 55943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 55953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageException(image,exception); 55963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->number_scenes != 0) 55973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 55983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->scenes_found > 55993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (long) (image_info->first_scene+image_info->number_scenes)) 56003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 56013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading image datastream."); 56053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (LocaleCompare(image_info->magick,"MNG") == 0); 56063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 56073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Finished reading all image datastreams."); 56103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MNG_INSERT_LAYERS) 56113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && 56123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->mng_height)) 56133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Insert a background layer if nothing else was found. 56163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No images found. Inserting a background layer."); 56203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetAuthenticPixelQueue(image) != (PixelPacket *) NULL) 56213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 56233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate next image structure. 56243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 56253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy AcquireNextImage(image_info,image); 56263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 56273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 56293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 56303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocation failed, returning NULL."); 56333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 56343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 56363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=mng_info->mng_width; 56383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=mng_info->mng_height; 56393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.width=mng_info->mng_width; 56403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.height=mng_info->mng_height; 56413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.x=0; 56423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y=0; 56433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->background_color=mng_background_color; 56443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte=MagickFalse; 56453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->ping == MagickFalse) 56463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageBackgroundColor(image); 56473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image_found++; 56483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 56503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->iterations=mng_iterations; 56513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_iterations == 1) 56523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 56533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 56543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 56563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count > 10*mng_info->image_found) 56573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); 56603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted, beginning of list not found", 56623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 56633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 56643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 56663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 56673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); 56703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Linked list is corrupted; next_image is NULL","`%s'", 56723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 56733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second && mng_info->image_found > 1 && 56763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetNextImageInList(image) == 56773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (Image *) NULL) 56783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " First image null"); 56823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"image->next for first image is NULL but shouldn't be.", 56843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image_info->filename); 56853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->image_found == 0) 56873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 56883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 56893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 56903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " No visible images found."); 56913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 56923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"No visible images in file","`%s'",image_info->filename); 56933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image != (Image *) NULL) 56943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 56953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 56963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 56973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 56983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 56993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->ticks_per_second) 57003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=1UL*MagickMax(image->ticks_per_second,1L)* 57013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/mng_info->ticks_per_second; 57023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 57033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->start_loop=MagickTrue; 57043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Find final nonzero image delay */ 57053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=0; 57063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 57073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay) 57093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_image_delay=image->delay; 57103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 57113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay < final_image_delay) 57133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=final_image_delay; 57143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay=final_delay; 57153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image->delay=%lu, final_delay=%lu",image->delay,final_delay); 57183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 57213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 57223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 57243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 57253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Before coalesce:"); 57273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu",image->delay); 57293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 57303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 57323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu",++scene,image->delay); 57343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 57383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef MNG_COALESCE_LAYERS 57393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (insert_layers) 57403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 57423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image, 57433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next; 57443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 57463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 57473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); 57503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=image->scene; 57513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=CoalesceImages(image,&image->exception); 57523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 57533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 57543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 57553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 57563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next=image; next != (Image *) NULL; next=next_image) 57573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.width=mng_info->mng_width; 57593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.height=mng_info->mng_height; 57603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.x=0; 57613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->page.y=0; 57623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->scene=scene++; 57633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next); 57643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image == (Image *) NULL) 57653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 57663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next->delay == 0) 57673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene--; 57693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->previous=GetPreviousImageInList(next); 57703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetPreviousImageInList(next) == (Image *) NULL) 57713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=next_image; 57723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 57733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next->previous->next=next_image; 57743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next=DestroyImage(next); 57753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 57783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 57793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 57813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 57823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->dispose=BackgroundDispose; 57833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 57853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 57873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 57883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 57893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 57903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 57913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " After coalesce:"); 57933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene 0 delay=%lu dispose=%d",image->delay,(int) image->dispose); 57953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetNextImageInList(image) != (Image *) NULL) 57963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 57973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetNextImageInList(image); 57983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 57993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " scene %d delay=%lu dispose=%d",++scene, 58003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay,(int) image->dispose); 58013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetFirstImageInList(image); 58043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 58053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 58063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 58073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); 58083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 58093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 58103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* PNG_LIBPNG_VER > 95 */ 58113ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 58123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 58133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 58143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 58153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(exception,GetMagickModule(),CoderError, 58163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "PNG library is too old","`%s'",image_info->filename); 58173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(Image *) NULL; 58183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 58193ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) 58203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 58213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(ReadPNGImage(image_info,exception)); 58223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 58233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* PNG_LIBPNG_VER > 95 */ 58243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 58273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 58283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 58293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 58303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 58313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r P N G I m a g e % 58323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 58333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 58343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 58353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 58363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 58373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterPNGImage() adds properties for the PNG image format to 58383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The properties include the image format 58393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 58403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 58413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 58423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 58433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 58443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterPNGImage method is: 58453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 58463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned long RegisterPNGImage(void) 58473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 58483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 58493ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport unsigned long RegisterPNGImage(void) 58503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 58513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 58523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy version[MaxTextExtent]; 58533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 58553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 58563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy static const char 58583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *PNGNote= 58593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/ for details about the PNG format." 58613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 58623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *JNGNote= 58633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the JNG\n" 58653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 58663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }, 58673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *MNGNote= 58683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "See http://www.libpng.org/pub/mng/ for details about the MNG\n" 58703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "format." 58713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy }; 58723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 58733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 58743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_LIBPNG_VER_STRING) 58753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"libpng ",MaxTextExtent); 58763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MaxTextExtent); 58773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 58783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) 58793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 58803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 58813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), 58823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MaxTextExtent); 58833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 58843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("MNG"); 58873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->seekable_stream=MagickTrue; /* To do: eliminate this. */ 58883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 58893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadMNGImage; 58903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteMNGImage; 58913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 58923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsMNG; 58933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Multiple-image Network Graphics"); 58943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 58953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 58963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 58973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(MNGNote); 58983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 58993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG"); 59013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 59033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 59043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 59063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 59073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("Portable Network Graphics"); 59083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 59103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 59113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(PNGNote); 59123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 59133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG8"); 59153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 59173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 59183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 59203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 59213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 59223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "8-bit indexed with optional binary transparency"); 59233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 59253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG24"); 59273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *version='\0'; 59283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(ZLIB_VERSION) 59293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,"zlib ",MaxTextExtent); 59303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,ZLIB_VERSION,MaxTextExtent); 59313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) 59323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 59333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,",",MaxTextExtent); 59343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(version,zlib_version,MaxTextExtent); 59353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 59363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*version != '\0') 59383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->version=ConstantString(version); 59393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 59413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 59423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 59443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 59453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque 24-bit RGB"); 59463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 59483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("PNG32"); 59503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadPNGImage; 59523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WritePNGImage; 59533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsPNG; 59553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 59563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("opaque or transparent 32-bit RGBA"); 59573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 59593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("JNG"); 59613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 59623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 59633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadJNGImage; 59643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteJNGImage; 59653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 59673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsJNG; 59683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 59693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString("JPEG Network Graphics"); 59703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("PNG"); 59713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->note=ConstantString(JNGNote); 59723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 597318b17443128598500357da7bff2f01683cf32890cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 597418b17443128598500357da7bff2f01683cf32890cristy png_semaphore=AllocateSemaphoreInfo(); 597518b17443128598500357da7bff2f01683cf32890cristy#endif 59763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 59773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 59783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 59793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 59803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r P N G I m a g e % 59853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 59883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 59893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage() removes format registrations made by the 59913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG module from the list of supported formats. 59923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterPNGImage method is: 59943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterPNGImage(void) 59963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 59973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 59983ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterPNGImage(void) 59993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("MNG"); 60013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG"); 60023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG8"); 60033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG24"); 60043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("PNG32"); 60053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("JNG"); 60063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 60073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DestroySemaphoreInfo(&png_semaphore); 60083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 60093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 60103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(MAGICKCORE_PNG_DELEGATE) 60123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if PNG_LIBPNG_VER > 95 60133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 60143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e M N G I m a g e % 60193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 60223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 60233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteMNGImage() writes an image in the Portable Network Graphics 60253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Group's "Multiple-image Network Graphics" encoded image format. 60263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 60283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteMNGImage method is: 60303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 60323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 60343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 60363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 60383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also 60413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "To do" under ReadPNGImage): 60423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Fix problem with palette sorting (when PNG_SORT_PALETTE is enabled, 60443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% some GIF animations don't convert properly) 60453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Preserve all unknown and not-yet-handled known chunks found in input 60473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG file and copy them into output PNG files according to the PNG 60483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% copying rules. 60493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Write the iCCP chunk at MNG level when (icc profile length > 0) 60513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Improve selection of color type (use indexed-colour or indexed-colour 60533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% with tRNS when 256 or fewer unique RGBA values are present). 60543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) 60563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% This will be complicated if we limit ourselves to generating MNG-LC 60573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% files. For now we ignore disposal method 3 and simply overlay the next 60583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image on it. 60593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical PLTE's or PLTE/tRNS combinations and use a 60613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% global MNG PLTE or PLTE/tRNS combination when appropriate. 60623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% [mostly done 15 June 1999 but still need to take care of tRNS] 60633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sRGB and replace with a global sRGB (and remove 60653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and 60663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% replace with global gAMA/cHRM (or with sRGB if appropriate; replace 60673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% local gAMA/cHRM with local sRGB if appropriate). 60683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Check for identical sBIT chunks and write global ones. 60703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide option to skip writing the signature tEXt chunks. 60723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use signatures to detect identical objects and reuse the first 60743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instance of such objects instead of writing duplicate objects. 60753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Use a smaller-than-32k value of compression window size when 60773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% appropriate. 60783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Encode JNG datastreams. Mostly done as of 5.5.2; need to write 60803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary text chunks and save profiles. 60813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force LC files (to ensure exact framing rate) 60833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% instead of VLC. 60843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 60853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Provide an option to force VLC files instead of LC, even when offsets 60863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% are present. This will involve expanding the embedded images with a 60873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent region at the top and/or left. 60883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 60893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 60903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 99 && PNG_LIBPNG_VER < 10007) 60913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* This function became available in libpng version 1.0.6g. */ 60923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 60933ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size) 60943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 60953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_ptr->zbuf) 60963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(png_ptr, png_ptr->zbuf); png_ptr->zbuf=NULL; 60973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr->zbuf_size=(png_size_t) size; 60983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_ptr->zbuf=(png_bytep) png_malloc(png_ptr, size); 60993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_ptr->zbuf == 0) 61003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(png_ptr,"Unable to allocate zbuf"); 61013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61043ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic void 61053ed852eea50f9d4cd633efb8c2b054b8e33c253cristypng_write_raw_profile(const ImageInfo *image_info,png_struct *ping, 61063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info *ping_info, unsigned char *profile_type, unsigned char 61073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile_description, unsigned char *profile_data, png_uint_32 length) 61083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 61103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 61113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 61123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 61143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 61153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 61173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *sp; 61183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_charp 61203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp; 61213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 61233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length, 61243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length; 61253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 61273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 61283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER <= 10005) 61313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 61323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("Not "); 61333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info=image_info; 61343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=ping; 61353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=ping_info; 61363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_type=profile_type; 61373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_description=profile_description; 61383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile_data=profile_data; 61393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=length; 61403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) 61423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return; 61433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 61453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("writing raw profile: type=%s, length=%lu\n", 61473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (char *) profile_type, length); 61483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 61503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 61513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy description_length=(png_uint_32) strlen((const char *) profile_description); 61523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 61533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy + description_length); 61543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(png_charp) png_malloc(ping,allocated_length); 61553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(png_charp) png_malloc(ping, (png_uint_32) 80); 61563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key[0]='\0'; 61573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key, 61583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Raw profile type ",MaxTextExtent); 61593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); 61603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sp=profile_data; 61613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp=text[0].text; 61623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 61633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(dp,(const char *) profile_description, 61643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy allocated_length); 61653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=description_length; 61663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 61673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(dp,allocated_length- 61683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_size_t) (dp-text[0].text),"%8lu ",length); 61693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dp+=8; 61703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) length; i++) 61713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 61723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i%36 == 0) 61733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 61743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; 61753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; 61763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 61773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp++='\n'; 61783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dp='\0'; 61793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=(png_size_t) (dp-text[0].text); 61803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 61813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 61823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 61833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (text[0].text_length <= allocated_length) 61843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 61853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].text); 61863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text[0].key); 61873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 61883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 61893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 61903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61913ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType png_write_chunk_from_profile(Image *image, 61923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char *string, int logging) 61933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 61943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 61953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name; 61963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 61973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 61983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 61993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *data; 62023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 length; 62043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 62063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ){ 62073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 62083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (const StringInfo *) NULL) 62093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 62103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy StringInfo 62113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_profile; 62123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleNCompare(name,string,11) == 0) { 62143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 62153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 62163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Found %s profile",name); 62173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=CloneStringInfo(profile); 62193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data=GetStringInfoDatum(png_profile), 62203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(png_uint_32) GetStringInfoLength(png_profile); 62213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[4]=data[3]; 62223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[3]=data[2]; 62233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[2]=data[1]; 62243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data[1]=data[0]; 62253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,length-5); /* data length */ 62263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length-1,data+1); 62273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); 62283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_profile=DestroyStringInfo(png_profile); 62293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 62323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 62333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 62343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 62353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, 62373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 62383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 62393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one PNG image */ 62403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy char 62413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[2]; 62423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 62443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *name, 62453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *property, 62463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 62473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const StringInfo 62493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *profile; 62503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 62533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte, 62543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes, 62553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pass; 62563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_colorp 62583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette; 62593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_info 62613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping_info; 62623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_struct 62643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *ping; 62653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 62673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 62683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 62703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 62713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantumInfo 62733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *quantum_info; 62743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register IndexPacket 62763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *indices; 62773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 62793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 62803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 62813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 62833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *png_pixels; 62843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 62863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 62873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte; 62883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 62903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors, 62913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth; 62923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 62943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth, 62953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality, 62963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes, 62973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth; 62983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 62993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 63003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOnePNGImage()"); 63013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6303a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) LockSemaphoreInfo(png_semaphore); 63043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 63053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6306ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info = (QuantumInfo *) NULL; 63073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=image->colors; 63083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=image->depth; 63093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=image->matte; 63103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colorspace != RGBColorspace) 63123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) TransformImageColorspace(image,RGBColorspace); 63133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=image->storage_class == PseudoClass && 63143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors <= 256; 63153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->optimize=image_info->type == OptimizeType; 63163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 63183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate the PNG structures 63193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 63203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_USER_MEM_SUPPORTED 63213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,image, 63223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler,(void *) NULL, 63233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_malloc_ptr) png_IM_malloc,(png_free_ptr) png_IM_free); 63243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 63253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,image, 63263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGErrorHandler,PNGWarningHandler); 63273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 63283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping == (png_struct *) NULL) 63293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 63303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info=png_create_info_struct(ping); 63313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info == (png_info *) NULL) 63323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,(png_info **) NULL); 63343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 63353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_write_fn(ping,image,png_put_data,png_flush_data); 63373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) NULL; 63383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 63393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 63403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 63423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 63433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 63443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 63453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 63463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 63473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 63483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 63493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 6350a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 63513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 63523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 63533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 63553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Prepare PNG for writing. 63563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 63573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) 63583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 63593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); 63603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 63613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 63623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 63633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_permit_empty_plte(ping,MagickTrue); 63643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy# endif 63653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 63663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 63673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->width=image->columns; 63683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->height=image->rows; 63693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 63703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 63713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth != 0) 63723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=mng_info->write_png_depth; 63733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Adjust requested depth to next higher valid depth if necessary */ 63743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 63753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=16; 63763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 4) && (image_depth < 8)) 63773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 63783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 3) 63793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=4; 63803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 63813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " width=%lu",ping_info->width); 63843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " height=%lu",ping_info->height); 63863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_matte=%u",image->matte); 63883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth=%lu",image->depth); 63903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 63913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " requested PNG image_depth=%lu",image->depth); 63923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 63933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_image_depth=image_depth; 63943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=(png_byte) save_image_depth; 63953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_pHYs_SUPPORTED) 63963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->x_resolution != 0) && (image->y_resolution != 0) && 63973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_mng || !mng_info->equal_physs)) 63983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 63993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 64003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type; 64013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_32 64033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution, 64043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution; 64053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 64073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 64093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution/2.54); 64103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution/2.54); 64113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image->units == PixelsPerCentimeterResolution) 64133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_METER; 64153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) (100.0*image->x_resolution); 64163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) (100.0*image->y_resolution); 64173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 64193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unit_type=PNG_RESOLUTION_UNKNOWN; 64213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_resolution=(png_uint_32) image->x_resolution; 64223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_resolution=(png_uint_32) image->y_resolution; 64233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_pHYs(ping,ping_info,x_resolution,y_resolution,unit_type); 64253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 64263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up pHYs chunk"); 64283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_oFFs_SUPPORTED) 64313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.x || image->page.y) 64323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, 64343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_int_32) image->page.y, 0); 64353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 64363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up oFFs chunk"); 64383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 64403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && (!mng_info->adjoin || !mng_info->equal_backgrounds)) 64413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 64433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 64443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < MAGICKCORE_QUANTUM_DEPTH) 64463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 64483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 64493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(1UL << image_depth)-1; 64513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=(png_uint_16) 64523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.red)); 64533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=(png_uint_16) 64543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.green)); 64553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=(png_uint_16) 64563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*image->background_color.blue)); 64573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 64583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*PixelIntensity(&image->background_color))); 64593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 64613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.red=image->background_color.red; 64633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.green=image->background_color.green; 64643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.blue=image->background_color.blue; 64653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray= 64663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_16) PixelIntensity(&image->background_color); 64673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.index=(png_byte) background.gray; 64693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 64703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 64713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGd chunk"); 64723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 64733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 64743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 64753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Select the color type. 64763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 64773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 64783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=0; 64793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 64803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 64823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=8; 64833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=ping_info->bit_depth; 64843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: make this a function cause it's used twice, except 64863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for reducing the sample depth from 8. */ 64873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy QuantizeInfo 64893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info; 64903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 64923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 64933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 64943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 64953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 64963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->storage_class == DirectClass) || (number_colors > 256)) 64973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 64983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetQuantizeInfo(&quantize_info); 64993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.dither=IsPaletteImage(image,&image->exception) == 65003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickFalse ? MagickTrue : MagickFalse; 65013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantize_info.number_colors= (matte != MagickFalse ? 255UL : 65023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 256UL); 65033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) QuantizeImage(&quantize_info,image); 65043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 65053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 65063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors quantized to %ld",number_colors); 65093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 65113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_tRNS; 65123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 65143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 65163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_PLTE; 65173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 65183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 65193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 65203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 65213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 65223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 65233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 65253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 65263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 65273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 65283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up PLTE chunk"); 65313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 65323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 65343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 65353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 65363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 65373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 65383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if MAGICKCORE_QUANTUM_DEPTH == 8 65393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %3ld (%3d,%3d,%3d)", 65403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 65413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " %5ld (%5d,%5d,%5d)", 65423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i,palette[i].red,palette[i].green,palette[i].blue); 65443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 65473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors++; 65493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar((Quantum) QuantumRange); 65503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar((Quantum) QuantumRange); 65513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar((Quantum) QuantumRange); 65523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 65543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) 65553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 65563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 65573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=ping_info->bit_depth; 65583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=0; 65593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 65603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 65623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 65633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 65653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 65663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 65673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) AcquireQuantumMemory( 65683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors,sizeof(*ping_info->trans_alpha)); 65693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->trans == (unsigned char *) NULL) 65703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 65713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 65723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 65733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 65743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha[i]=255; 65753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 65763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 65773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 65793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 65803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 65813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetAuthenticPixels(image,0,y,image->columns,1,exception); 65823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (PixelPacket *) NULL) 65833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 65843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices=GetAuthenticIndexQueue(image); 65853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 65863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 65883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 65893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy indices[x]=(IndexPacket) (number_colors-1); 65903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha[(long) indices[x]]=(png_byte) (255- 65913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(p->opacity)); 65923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 65943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 65963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 65973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 65983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 65993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->trans_alpha[i] != 255) 66003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=(unsigned short) (i+1); 66013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->num_trans == 0) 66023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 66033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!(ping_info->valid & PNG_INFO_tRNS)) 66043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=0; 66053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->num_trans == 0) 66063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) 66073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(ping_info->trans_alpha); 66083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 66103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 66113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 66123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 66133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsPNGColorEqual(ping_info->background,image->colormap[i])) 66143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 66153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->background.index=(png_byte) i; 66163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 66183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* TO DO: reduce to binary transparency */ 66203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } /* end of write_png8 */ 66223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png24) 66233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 66253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_RGB; 66263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32) 66283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 66303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 66313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 66333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=ping_info->bit_depth; 66353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 66363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) mng_info->write_png_colortype-1; 66383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 66393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) 66403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 66413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 66433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selecting PNG colortype"); 66473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) ((matte == MagickTrue)? 66483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); 66493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorType) 66503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_RGB; 66523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 66533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(image_info->type == TrueColorMatteType) 66553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 66573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 66583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 66603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 66613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleType) && 66623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickFalse && ImageIsGray(image)) 66633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_GRAY; 66653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 66663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_info->type == UndefinedType || 66683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == OptimizeType || 66693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type == GrayscaleMatteType) && 66703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte == MagickTrue && ImageIsGray(image)) 66713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; 66733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickTrue; 66743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 66773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 66783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Selected PNG colortype=%d",ping_info->color_type); 66793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < 8) 66813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA || 66833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type == PNG_COLOR_TYPE_RGB || 66843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type == PNG_COLOR_TYPE_RGBA) 66853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=8; 66863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 66883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 66893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickFalse && image->colors < 256) 66913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsMonochrome(image)) 66933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 66943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=1; 66953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < mng_info->write_png_depth) 66963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth = mng_info->write_png_depth; 66973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 66993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 67013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=1; 67033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while ((int) (1 << ping_info->bit_depth) < (long) image_colors) 67043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth <<= 1; 67053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",image_colors); 67103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Tentative PNG bit depth: %d",ping_info->bit_depth); 67123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 67143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy old_bit_depth=ping_info->bit_depth; 67163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < mng_info->write_png_depth) 67173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth = mng_info->write_png_depth; 67193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth > 8) 67203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth = 8; 67213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth != old_bit_depth) 67223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Colors increased to %ld",image_colors); 67263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=ping_info->bit_depth; 67323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 67333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Tentative PNG color type: %d",ping_info->color_type); 67363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_info->type: %d",image_info->type); 67383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " image_depth: %lu",image_depth); 67403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 67413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " ping_info->bit_depth: %d",ping_info->bit_depth); 67423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte && (mng_info->optimize || mng_info->IsPalette)) 67453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 67473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 67483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,0,image->columns,1,&image->exception); 67503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 67513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 67523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 67543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 67553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 67573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsGray(p) == MagickFalse) 67593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; 67613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 67643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is any transparent color. 67683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 67703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 67723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 67733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 67753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 67773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 67793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 67813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 67823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((y == (long) image->rows) && (x == (long) image->columns)) 67843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 67863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy No transparent pixels are present. Change 4 or 6 to 0 or 2, 67873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and do not set the PNG_INFO_tRNS flag in ping_info->valid. 67883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 67893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 67903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type&=0x03; 67913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 67923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 67933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 67943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 67953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask; 67963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 67973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0xffff; 67983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth == 8) 67993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x00ff; 68003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth == 4) 68013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x000f; 68023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth == 2) 68033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0003; 68043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth == 1) 68053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mask=0x0001; 68063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_tRNS; 68073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.red=(png_uint_16) 68083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(p->red) & mask); 68093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.green=(png_uint_16) 68103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(p->green) & mask); 68113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.blue=(png_uint_16) 68123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(p->blue) & mask); 68133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray=(png_uint_16) 68143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToShort(PixelIntensityToQuantum(p)) & mask); 68153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.index=(png_byte) 68163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ScaleQuantumToChar((Quantum) (QuantumRange-p->opacity))); 68173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 68193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 68213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if there is one and only one transparent color 68223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy and if so if it is fully transparent. 68233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 68243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 68253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1, 68273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 68283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 68293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 68303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=(long) image->columns-1; x >= 0; x--) 68323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 68343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsPNGColorEqual(ping_info->trans_color,*p) == 0) 68363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for multiple 68383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent colors. */ 68393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != (Quantum) TransparentOpacity) 68413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS for 68433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy semitransparency. */ 68443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 68473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsPNGColorEqual(ping_info->trans_color,*p)) 68493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; /* Can't use RGB + tRNS when another pixel 68503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy having the same RGB samples is 68513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent. */ 68523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 68543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 68563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 68573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x != 0) 68593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 68603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 68623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ 68643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth == 8) 68653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.red&=0xff; 68673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.green&=0xff; 68683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.blue&=0xff; 68693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray&=0xff; 68703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy matte=image_matte; 68743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 68753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_matte=MagickFalse; 68763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 68773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && 68783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image) && (!image_matte || image_depth >= 8)) 68793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte != MagickFalse) 68813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=PNG_COLOR_TYPE_GRAY_ALPHA; 68823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 68833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=PNG_COLOR_TYPE_GRAY; 68853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (save_image_depth == 16 && image_depth == 8) 68863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray*=0x0101; 68873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 68883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > MAGICKCORE_QUANTUM_DEPTH) 68893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=MAGICKCORE_QUANTUM_DEPTH; 68903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_colors == 0 || image_colors-1 > MaxColormapSize) 68913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=1 << image_depth; 68923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth > 8) 68933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=16; 68943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 68953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=8; 68973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) 68983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 68993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if(!mng_info->write_png_depth) 69003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=1; 69023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while ((int) (1 << ping_info->bit_depth) 69033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < (long) image_colors) 69043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth <<= 1; 69053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->optimize && ping_info->color_type == 69083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY && image_colors < 17 && 69093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette) 69103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if grayscale is reducible */ 69133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 69143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=MagickTrue, 69153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=MagickTrue, 69163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickTrue; 69173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image_colors; i++) 69193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 69213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity; 69223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy intensity=ScaleQuantumToChar(image->colormap[i].red); 69243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) 69263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; 69273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) 69283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_2_ok=depth_1_ok=MagickFalse; 69293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) 69303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy depth_1_ok=MagickFalse; 69313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (depth_1_ok && mng_info->write_png_depth <= 1) 69333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=1; 69343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_2_ok && mng_info->write_png_depth <= 2) 69353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=2; 69363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (depth_4_ok && mng_info->write_png_depth <= 4) 69373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=4; 69383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=ping_info->bit_depth; 69413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 69443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 69463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 69483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors; 69493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 69513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 69523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_tRNS; 69533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 69543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Set image palette. 69553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 69563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; 69573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid|=PNG_INFO_PLTE; 69583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->have_write_global_plte && !matte) 69593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,NULL,0); 69613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 69623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up empty PLTE chunk"); 69643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 69663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SORT_PALETTE) 69683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 69693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors; 69703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 69713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->optimize) 69723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy save_number_colors=image_colors; 69743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (CompressColormapTransFirst(image) == MagickFalse) 69753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 69763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 69773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors=image_colors; 69783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_colors=save_number_colors; 69793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 69813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_color *) AcquireQuantumMemory(257, 69823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*palette)); 69833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (palette == (png_color *) NULL) 69843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 69853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 69863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 69873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 69883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].red=ScaleQuantumToChar(image->colormap[i].red); 69893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].green=ScaleQuantumToChar(image->colormap[i].green); 69903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); 69913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 69923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 69933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 69943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up PLTE chunk"); 69953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_PLTE(ping,ping_info,palette,(int) number_colors); 69963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) 69973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palette=(png_colorp) RelinquishMagickMemory(palette); 69983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 69993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* color_type is PNG_COLOR_TYPE_PALETTE */ 70013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->write_png_depth) 70023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=1; 70043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while ((1UL << ping_info->bit_depth) < number_colors) 70053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth <<= 1; 70063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=0; 70083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (matte) 70093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ExceptionInfo 70113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *exception; 70123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 70143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 70153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 70173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[256]; 70183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const IndexPacket 70203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *packet_indices; 70213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is transparent. 70243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 70253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(number_colors <= 256); 70263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 70273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=256; 70283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy exception=(&image->exception); 70293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 70303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 70323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 70333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_indices=GetVirtualIndexQueue(image); 70353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (x=0; x < (long) image->columns; x++) 70363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->opacity != OpaqueOpacity) 70383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy IndexPacket 70403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index; 70413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_index=packet_indices[x]; 70433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert((unsigned long) packet_index < number_colors); 70443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != 256) 70453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[(long) packet_index] != (png_byte) (255- 70473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(p->opacity))) 70483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type=(png_byte) 70503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_RGB_ALPHA; 70513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[(long) packet_index]=(png_byte) (255- 70553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ScaleQuantumToChar(p->opacity)); 70563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 70583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) ping_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) 70603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=0; 70623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 70633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_PLTE); 70643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->IsPalette=MagickFalse; 70653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 70663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 70673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent, GetMagickModule(), 70683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Cannot write image as indexed PNG, writing RGBA."); 70693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 70703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ping_info->valid & PNG_INFO_tRNS)) 70733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 70753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] == 256) 70773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy trans[i]=255; 70783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (trans[i] != 255) 70793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=(unsigned short) (i+1); 70803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->num_trans == 0) 70833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 70843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!(ping_info->valid & PNG_INFO_tRNS)) 70853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_trans=0; 70863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->num_trans != 0) 70873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 70883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) AcquireQuantumMemory( 70893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors,sizeof(*ping_info->trans_alpha)); 70903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->trans_alpha == (unsigned char *) NULL) 70913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError, 70923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "MemoryAllocationFailed"); 70933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) number_colors; i++) 70943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha[i]=(png_byte) trans[i]; 70953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 70973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 70983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 70993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Identify which colormap entry is the background color. 71003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) MagickMax(1L*number_colors-1L,1L); i++) 71023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (IsPNGColorEqual(ping_info->background,image->colormap[i])) 71033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 71043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->background.index=(png_byte) i; 71053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth < 8) 71103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 71113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((save_image_depth == 16) && (image_depth == 8)) 71123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.red*=0x0101; 71143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.green*=0x0101; 71153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.blue*=0x0101; 71163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray*=0x0101; 71173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Adjust background and transparency samples in sub-8-bit grayscale files. 71223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < 8 && ping_info->color_type == 71243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_COLOR_TYPE_GRAY) 71253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_uint_16 71273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval; 71283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_color_16 71303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background; 71313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy maxval=(png_uint_16) ((1 << ping_info->bit_depth)-1); 71333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy background.gray=(png_uint_16) 71363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (QuantumScale*(maxval*(PixelIntensity(&image->background_color)))); 71373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up bKGD chunk"); 71413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_bKGD(ping,ping_info,&background); 71423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray=(png_uint_16) (QuantumScale*(maxval* 71443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_color.gray)); 71453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color type: %d",ping_info->color_type); 71493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 71503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize compression level and filtering. 71513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 71523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up deflate compression"); 71553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 99) 71563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression buffer size: 32768"); 71593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_buffer_size(ping,32768L); 71603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 71613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression mem level: 9"); 71643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_mem_level(ping, 9); 71653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quality=image->quality == UndefinedCompressionQuality ? 75UL : 71663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->quality; 71673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quality > 9) 71683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 71703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level; 71713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy level=(int) MagickMin((long) quality/10,9); 71733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression level: %d",level); 71763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_level(ping,level); 71773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Compression strategy: Z_HUFFMAN_ONLY"); 71833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_compression_strategy(ping, Z_HUFFMAN_ONLY); 71843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up filtering"); 71883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) 71893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 71903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* This became available in libpng-1.0.9. Output must be a MNG. */ 71913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && ((quality % 10) == 7)) 71923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 71933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 71943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 71953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: PNG_INTRAPIXEL_DIFFERENCING"); 71963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->filter_type=PNG_INTRAPIXEL_DIFFERENCING; 71973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 71983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 71993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Filter_type: 0"); 72023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 72033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 72053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter; 72063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) > 5) 72083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 72093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((quality % 10) != 5) 72113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=(int) quality % 10; 72123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (((int) ping_info->color_type == PNG_COLOR_TYPE_GRAY) || 72143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) ping_info->color_type == PNG_COLOR_TYPE_PALETTE) || 72153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (quality < 50)) 72163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_NO_FILTERS; 72173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy base_filter=PNG_ALL_FILTERS; 72193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (base_filter == PNG_ALL_FILTERS) 72223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: ADAPTIVE"); 72243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Base filter method: NONE"); 72273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_filter(ping,PNG_FILTER_TYPE_BASE,base_filter); 72293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImageProfileIterator(image); 72323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (name=GetNextImageProfile(image); name != (const char *) NULL; ) 72333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy profile=GetImageProfile(image,name); 72353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (profile != (StringInfo *) NULL) 72363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10008) && defined(PNG_WRITE_iCCP_SUPPORTED) 72383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((LocaleCompare(name,"ICC") == 0) || 72393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (LocaleCompare(name,"ICM") == 0)) 72403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_iCCP(ping,ping_info,(const png_charp) name,0,(png_charp) 72413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetStringInfoDatum(profile), 72423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 72433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 72443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 72453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_raw_profile(image_info,ping,ping_info,(unsigned char *) 72463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name,(unsigned char *) name,GetStringInfoDatum(profile), 72473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) GetStringInfoLength(profile)); 72483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk with %s profile",name); 72523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy name=GetNextImageProfile(image); 72533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_sRGB_SUPPORTED) 72563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_srgb == 0) && 72573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->rendering_intent != UndefinedIntent) || 72583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->colorspace == sRGBColorspace))) 72593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image rendering intent. 72623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up sRGB chunk"); 72663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_set_sRGB(ping,ping_info,(int) (image->rendering_intent-1)); 72673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,0.45455); 72683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_mng) || !(ping_info->valid & PNG_INFO_sRGB)) 72703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 72713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) 72733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image gamma. 72763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 72773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 72793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 72803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up gAMA chunk"); 72813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_gAMA(ping,ping_info,image->gamma); 72823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 72833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->have_write_global_chrm == 0) && 72843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 72853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 72863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 72873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Note image chromaticity. 72883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 72893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 72903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 72913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp, 72923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp, 72933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp, 72943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp; 72953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 72963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy wp=image->chromaticity.white_point; 72973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rp=image->chromaticity.red_primary; 72983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gp=image->chromaticity.green_primary; 72993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp=image->chromaticity.blue_primary; 73003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up cHRM chunk"); 73043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, 73053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bp.x,bp.y); 73063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->interlace_type=image_info->interlace != NoInterlace; 73093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng) 73113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_sig_bytes(ping,8); 73123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Bail out if cannot meet defined PNG:bit-depth or PNG:color-type */ 73143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 73163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) 73183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 73193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type = PNG_COLOR_TYPE_RGB; 73213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->bit_depth < 8) 73223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth=8; 73233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) 73263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 73273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA; 73283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->write_png_depth && 73313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != ping_info->bit_depth) || 73323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->write_png_colortype && 73333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 != ping_info->color_type)) 73343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 73383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth=%u, Computed depth=%u", 73413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth, 73423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->bit_depth); 73433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 73453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type=%u, Computed color type=%u", 73483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1, 73493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->color_type); 73503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_error(ping, 73533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Cannot write image with defined PNG:bit-depth or PNG:color-type."); 73543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_matte && !image->matte) 73573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Add an opaque matte channel */ 73593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->matte = MagickTrue; 73603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageOpacity(image,0); 73613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 73643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 73653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG header chunks"); 73663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info_before_PLTE(ping, ping_info); 73683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any png-chunk-b profiles */ 73693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-b",(int) logging); 73703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_info(ping,ping_info); 73713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-m profiles */ 73723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-m",(int) logging); 73733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->page.width || image->page.height) 73753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 73763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 73773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]; 73783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 73803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 73813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 73823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 73833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 73843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 73853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 73863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 73873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 73883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER == 10206) 73903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ 73913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define PNG_HAVE_IDAT 0x04 73923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping->mode |= PNG_HAVE_IDAT; 73933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#undef PNG_HAVE_IDAT 73943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 73953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 73963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_packing(ping); 73973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 73983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate memory. 73993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes=image->columns; 74013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_depth <= 8) 74023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24 || (mng_info->write_png_depth == 8 && 74043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_RGB)) 74053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=3; 74063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (mng_info->write_png32 || (mng_info->write_png_depth == 8 && 74073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_RGB_ALPHA)) 74083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=4; 74093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if ((!mng_info->write_png8 || 74103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY || 74113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA )&& 74123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image))) 74133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 2 : 1); 74143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (!mng_info->IsPalette) 74173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 4 : 3); 74183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->optimize || mng_info->IsPalette) && 74233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageIsGray(image)) 74243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 4 : 2); 74253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy rowbytes*=(image_matte ? 8 : 6); 74273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 74293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 74303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Allocating %lu bytes of memory for pixels",rowbytes); 74313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) AcquireQuantumMemory(rowbytes, 74323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*png_pixels)); 74333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels == (unsigned char *) NULL) 74343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 74353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image scanlines. 74373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (setjmp(ping->jmpbuf)) 74393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG write failed. 74423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_DEBUG 74443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 74453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) printf("PNG write has failed.\n"); 74463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 74483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (quantum_info != (QuantumInfo *) NULL) 74493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info=DestroyQuantumInfo(quantum_info); 74503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (png_pixels != (unsigned char *) NULL) 74513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 74523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7453a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 74543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 74553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 74563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7457ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy quantum_info=AcquireQuantumInfo(image_info,image); 7458ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy if (quantum_info == (QuantumInfo *) NULL) 7459ed5525230af20461366cdc5b8bbe0f7f9b166c44cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 74603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->format=UndefinedQuantumFormat; 74613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=image_depth; 74623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_passes=png_set_interlace_handling(ping); 74633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 74643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 74653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette || 74663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->type == BilevelType)) && 74673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !image_matte && ImageIsMonochrome(image)) 74683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 74703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 74713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 74723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 74733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 74743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 74763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a PNG monochrome image. 74773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 74783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 74793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 74813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 74823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 74833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 74843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 74863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 74873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && 74883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth && 74893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth != old_bit_depth) 74903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Undo pixel scaling */ 74923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 74933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) (*(png_pixels+i) 74943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy >> (8-old_bit_depth)); 74953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 74973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 74983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 74993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 75013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) 75033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->columns; i++) 75043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(png_pixels+i)=(unsigned char) ((*(png_pixels+i) > 127) ? 75053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 255 : 0); 75063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 75073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 75093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 75113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 75123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 75133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 75183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const PixelPacket 75203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 75213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 75223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((!mng_info->write_png8 && !mng_info->write_png24 && 75233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy !mng_info->write_png32) && 75243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_matte || 75253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ping_info->bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && 75263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->optimize || mng_info->IsPalette) && ImageIsGray(image)) 75273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 75293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 75313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 75323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 75333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 75343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 75363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 75383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 75413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else /* PNG_COLOR_TYPE_GRAY_ALPHA */ 75433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 75463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 75483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 75503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 75523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 75533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 75543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (pass=0; pass < num_passes; pass++) 75583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image_depth > 8) || (mng_info->write_png24 || 75603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 75613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) 75623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 75633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 75653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 75663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 75673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 75683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 75703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RedQuantum,png_pixels,&image->exception); 75723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 75753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 75773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 75793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (image_matte != MagickFalse) 75803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBAQuantum,png_pixels,&image->exception); 75823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 75843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,RGBQuantum,png_pixels,&image->exception); 75853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 75863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 75873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 75883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* not ((image_depth > 8) || (mng_info->write_png24 || 75893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32 || 75903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (!mng_info->write_png8 && !mng_info->IsPalette))) */ 75913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((ping_info->color_type != PNG_COLOR_TYPE_GRAY) && 75933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ping_info->color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) 75943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 75953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 75963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 75973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); 75983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info->depth=8; 75993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=8; 76003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (y=0; y < (long) image->rows; y++) 76023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging) 76043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); 76063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); 76073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p == (const PixelPacket *) NULL) 76083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->color_type == PNG_COLOR_TYPE_GRAY) 76103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayQuantum,png_pixels,&image->exception); 76123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (ping_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 76133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,GrayAlphaQuantum,png_pixels,&image->exception); 76153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 76163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ExportQuantumPixels(image,(const CacheView *) NULL, 76173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy quantum_info,IndexQuantum,png_pixels,&image->exception); 76183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_row(ping,png_pixels); 76193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 76223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,pass,num_passes); 76243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 76253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 76263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7629b32b90a7e1ee2275333589072c496b5f69e17feccristy if (quantum_info != (QuantumInfo *) NULL) 7630b32b90a7e1ee2275333589072c496b5f69e17feccristy quantum_info=DestroyQuantumInfo(quantum_info); 76313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG image data"); 76363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Width: %lu",ping_info->width); 76383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Height: %lu",ping_info->height); 76403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_depth) 76413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:bit-depth: %d",mng_info->write_png_depth); 76443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG bit-depth written: %d",ping_info->bit_depth); 76473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png_colortype) 76483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Defined PNG:color-type: %d",mng_info->write_png_colortype-1); 76513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG color-type written: %d",ping_info->color_type); 76543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " PNG Interlace method: %d",ping_info->interlace_type); 76563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 76583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Generate text chunks. 76593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 76603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER <= 10005) 76613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->num_text=0; 76623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResetImagePropertyIterator(image); 76643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 76653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (property != (const char *) NULL) 76663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 76683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_textp 76693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text; 76703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 76713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 76723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(image,property); 76733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (const char *) NULL) 76743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER > 10005) 76763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text=(png_textp) png_malloc(ping,(png_uint_32) sizeof(png_text)); 76773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].key=(char *) property; 76783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text=(char *) value; 76793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length=strlen(value); 76803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].compression=image_info->compression == NoCompression || 76813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 76823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy text[0].text_length < 128) ? -1 : 0; 76833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 76843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 76873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 76883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",text[0].key); 76893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 76903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_set_text(ping,ping_info,text,1); 76913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_free(ping,text); 76923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else 76933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Work directly with ping_info struct; png_set_text before libpng version 76943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 1.0.5a is leaky */ 76953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->num_text == 0) 76963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 76973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->text=(png_text *) AcquireQuantumMemory(256, 76983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*ping_info->text)); 76993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->text == (png_text *) NULL) 77003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 77013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"MemoryAllocationFailed","`%s'", 77023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 77033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=ping_info->num_text++; 77053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (i > 255) 77063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 77073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ResourceLimitError,"Cannot write more than 256 PNG text chunks", 77083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 77093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->text[i].key=(char *) property; 77103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->text[i].text=(char *) value; 77113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->text[i].text_length=strlen(value); 77123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->text[i].compression= 77133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->compression == NoCompression || 77143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image_info->compression == UndefinedCompression && 77153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->text[i].text_length < 128) ? -1 : 0; 77163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Setting up text chunk"); 77203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " keyword: %s",ping_info->text[i].key); 77223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 77243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy property=GetNextImageProperty(image); 77263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* write any PNG-chunk-e profiles */ 77293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"PNG-chunk-e",(int) logging); 77303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 77323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 77333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG end info"); 77343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_write_end(ping,ping_info); 77353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) 77363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.x || mng_info->page.y || 77383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ping_info->width != mng_info->page.width) || 77393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (ping_info->height != mng_info->page.height)) 77403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 77423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[32]; 77433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write FRAM 4 with clipping boundaries followed by FRAM 1. 77463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 77473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,27L); /* data length=27 */ 77483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 77493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,27L); 77503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=4; 77513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 77523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=1; /* flag for changing delay, for next frame only */ 77533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 77543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=1; /* flag for changing frame clipping for next frame */ 77553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 77563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ 77573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=0; /* clipping boundaries delta type */ 77583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ 77593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+19, 77603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) (mng_info->page.x + ping_info->width)); 77613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ 77623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+27, 77633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) (mng_info->page.y + ping_info->height)); 77643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,31,chunk); 77653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); 77663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=4; 77673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 77683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 77703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 77713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng && !mng_info->need_fram && 77733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((int) image->dispose == 3)) 77743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception,GetMagickModule(), 77753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy CoderError,"Cannot convert GIF with disposal method 3 to MNG-LC", 77763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",image->filename); 77773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_depth=save_image_depth; 77783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Save depth actually written */ 77803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[0]=(char) ping_info->bit_depth; 77823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy s[1]='\0'; 77833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageProperty(image,"png:bit-depth-written",s); 77853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 77863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 77873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Free PNG resources. 77883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 77893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10007) 77903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_PLTE) 77913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->palette=(png_colorp) 77933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RelinquishMagickMemory(ping_info->palette); 77943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_PLTE); 77953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 77963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ping_info->valid & PNG_INFO_tRNS) 77973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 77983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha=(unsigned char *) RelinquishMagickMemory( 77993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->trans_alpha); 78003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ping_info->valid&=(~PNG_INFO_tRNS); 78013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 78023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_destroy_write_struct(&ping,&ping_info); 78053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy png_pixels=(unsigned char *) RelinquishMagickMemory(png_pixels); 78073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_SETJMP_NOT_THREAD_SAFE) 7809a45da9d457daa1f2ce937c13ef3e1922f28b4e18cristy (void) UnlockSemaphoreInfo(png_semaphore); 78103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 78113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 78133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 78143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOnePNGImage()"); 78153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 78163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* End write one PNG image */ 78173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 78183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 78193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 78203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 78213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e P N G I m a g e % 78253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 78283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 78293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WritePNGImage() writes a Portable Network Graphics (PNG) or 78313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Multiple-image Network Graphics (MNG) image file. 78323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MNG support written by Glenn Randers-Pehrson, glennrp@image... 78343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WritePNGImage method is: 78363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 78383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 78403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 78423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 78443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Returns MagickTrue on success, MagickFalse on failure. 78463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Communicating with the PNG encoder: 78483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% While the datastream written is always in PNG format and normally would 78503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be given the "png" file extension, this method also writes the following 78513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pseudo-formats which are subsets of PNG: 78523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG8: An 8-bit indexed PNG datastream is written. If transparency 78543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is present, the tRNS chunk must only have values 0 and 255 78553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% (i.e., transparency is binary: fully opaque or fully 78563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparent). The pixels contain 8-bit indices even if 78573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% they could be represented with 1, 2, or 4 bits. Note: grayscale 78583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% images will be written as indexed PNG files even though the 78593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG grayscale type might be slightly more efficient. 78603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS 78623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% chunk can be present to convey binary transparency by naming 78633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% one of the colors as transparent. 78643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o PNG32: An 8-bit per sample RGBA PNG is written. Partial 78663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency is permitted, i.e., the alpha sample for 78673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% each pixel can have any value from 0 to 255. The alpha 78683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% channel is present even if the image is fully opaque. 78693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o -define: For more precise control of the PNG output, you can use the 78713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Image options "png:bit-depth" and "png:color-type". These 78723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% can be set from the commandline with "-define" and also 78733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% from the application programming interfaces. 78743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:color-type can be 0, 2, 3, 4, or 6. 78763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 0 (Grayscale), png:bit-depth can 78783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, 8, or 16. 78793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 2 (RGB), png:bit-depth can 78813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 8 or 16. 78823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 3 (Indexed), png:bit-depth can 78843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% be 1, 2, 4, or 8. This refers to the number of bits 78853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% used to store the index. The color samples always have 78863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% bit-depth 8 in indexed PNG files. 78873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), 78893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% png:bit-depth can be 8 or 16. 78903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 78913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% If the image cannot be written without loss in the requested PNG8, PNG24, 78923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or PNG32 format or with the requested bit-depth and color-type without loss, 78933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% a PNG file will not be written, and the encoder will return MagickFalse. 78943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Since image encoders should not be responsible for the "heavy lifting", 78953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the user should make sure that ImageMagick has already reduced the 78963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image depth and number of colors and limit transparency to binary 78973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% transparency prior to attempting to write the image in a format that 78983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is subject to depth, color, or transparency limitations. 78993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Enforce the previous paragraph. 79013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% TODO: Allow all other PNG subformats to be requested via new 79033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "-define png:bit-depth -define png:color-type" options. 79043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Note that another definition, "png:bit-depth-written" exists, but it 79063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% is not intended for external use. It is only used internally by the 79073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% PNG encoder to inform the JNG encoder of the depth of the alpha channel. 79083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% It is possible to request that the PNG encoder write previously-formatted 79103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ancillary chunks in the output PNG file, using the "-profile" commandline 79113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% option as shown below or by setting the profile via a programming 79123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% interface: 79133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x:<file> 79153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% where x is a location flag and <file> is a file containing the chunk 79173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% name in the first 4 bytes, then a colon (":"), followed by the chunk data. 79183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), 79203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% or "e" (end, i.e., after IDAT). If you want to write multiple chunks 79213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% of the same type, then add a short unique string after the "x" to prevent 79223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% subsequent profiles from overwriting the preceding ones: 79233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% -profile PNG-chunk-x01:file01 -profile PNG-chunk-x02:file02 79253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 79263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 79273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 79283ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info, 79293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image *image) 79303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 79313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 79323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 79333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 79353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 79363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 79383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 79393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 79413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 79423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 79443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 79453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 79483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 79503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 79513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 79523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 79533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 79543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WritePNGImage()"); 79553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 79563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 79573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 79583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 79603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 79623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 79633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 79643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 79653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 79663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 79673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 79683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 79693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 79703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 79713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* See if user has requested a specific PNG subformat */ 79733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 79753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 79763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 79773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8) 79793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 3 */ 4; 79813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 79823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 79833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if 0 /* this does not work */ 79843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 79853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteMatteType); 79863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 79873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,PaletteType); 79883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 79893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 79903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 79913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 79923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png24) 79933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 79943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 2 */ 3; 79953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 79963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 79973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 79983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 79993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 80013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png32) 80053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = /* 6 */ 7; 80073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth = 8; 80093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte == MagickTrue) 80103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorMatteType); 80113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 80123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(image,TrueColorType); 80133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(image); 80143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:bit-depth"); 80173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 80183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"1") == 0) 80203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 1; 80213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 80223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 2; 80233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 80243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 4; 80253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"8") == 0) 80263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 8; 80273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"16") == 0) 80283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_depth = 16; 80293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:bit-depth=%d was defined.\n",mng_info->write_png_depth); 80323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageOption(image_info,"png:color-type"); 80343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 80353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 80363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* We must store colortype+1 because 0 is a valid colortype */ 80373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (LocaleCompare(value,"0") == 0) 80383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 1; 80393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"2") == 0) 80403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 3; 80413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"3") == 0) 80423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 4; 80433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"4") == 0) 80443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 5; 80453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else if (LocaleCompare(value,"6") == 0) 80463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png_colortype = 7; 80473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 80493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); 80503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 80513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 80533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 80553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 80573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 80583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); 80593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 80603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 80613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 80633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* Write one JNG image */ 80653ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, 80663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const ImageInfo *image_info,Image *image) 80673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 80683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 80693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image; 80703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 80723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *jpeg_image_info; 80733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 80753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 80763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 80783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 80793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 80813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *blob, 80823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[80], 80833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 80843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 80863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method, 80873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth, 80883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type, 80893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 80903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent; 80913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 80933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality; 80943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(), 80963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " enter WriteOneJNGImage()"); 80973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) NULL; 80993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=(Image *) NULL; 81003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) NULL; 81013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=MagickTrue; 81033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=image_info->type==GrayscaleMatteType || 81043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->type==TrueColorMatteType; 81053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=10; 81063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=0; 81073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality; 81083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=0; 81093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 81113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* if any pixels are transparent */ 81133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy transparent=MagickTrue; 81143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression==JPEGCompression) 81153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_compression_method=8; 81163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 81193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type=14; 81213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Create JPEG blob, image, and image_info */ 81223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info for opacity."); 81253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 81263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 81273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 81283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 81313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 81323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 81333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 81343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 81353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SeparateImageChannel(jpeg_image,OpacityChannel); 81363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=NegateImage(jpeg_image,MagickFalse); 81373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->matte=MagickFalse; 81383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_quality >= 1000) 81393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality/1000; 81403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality; 81423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 81433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(jpeg_image,GrayscaleType); 81443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 81453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent, 81463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "%s",jpeg_image->filename); 81473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: check bit depth of PNG alpha channel */ 81503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Check if image is grayscale. */ 81523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->type != TrueColorMatteType && image_info->type != 81533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy TrueColorType && ImageIsGray(image)) 81543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_color_type-=2; 81553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 81573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 81593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 81613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *value; 81623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale PNG blob */ 81643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 81653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 81663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating PNG blob."); 81693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=0; 81703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"PNG",MaxTextExtent); 81723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"PNG",MaxTextExtent); 81733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 81743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 81763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 81773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Retrieve sample depth used */ 81793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy value=GetImageProperty(jpeg_image,"png:bit-depth-written"); 81803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (value != (char *) NULL) 81813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth= (unsigned int) value[0]; 81823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 81833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 81843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 81853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode opacity as a grayscale JPEG blob */ 81863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 81883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 81893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 81903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 81913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 81923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->interlace=NoInterlace; 81933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 81943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 81953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 81963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length, 81973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 81983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jng_alpha_sample_depth=8; 81993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 82023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 82033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Destroy JPEG image and image_info */ 82063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 82073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 82083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 82093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JHDR chunk */ 82123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ 82133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JHDR); 82143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JHDR,16L); 82153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,image->columns); 82163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,image->rows); 82173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=jng_color_type; 82183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[13]=8; /* sample depth */ 82193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[14]=8; /*jng_image_compression_method */ 82203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); 82213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[16]=jng_alpha_sample_depth; 82223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[17]=jng_alpha_compression_method; 82233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[18]=0; /*jng_alpha_filter_method */ 82243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[19]=0; /*jng_alpha_interlace_method */ 82253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,20,chunk); 82263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); 82273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 82283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG width:%15lu",image->columns); 82313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG height:%14lu",image->rows); 82333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG color type:%10d",jng_color_type); 82353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG sample depth:%8d",8); 82373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG compression:%9d",8); 82393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG interlace:%11d",0); 82413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha depth:%9d",jng_alpha_sample_depth); 82433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha compression:%3d",jng_alpha_compression_method); 82453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha filter:%8d",0); 82473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 82483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " JNG alpha interlace:%5d",0); 82493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-b profiles */ 82523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-b",(int) logging); 82533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 82553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write leading ancillary chunks 82563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 82573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 82593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 82613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG bKGD chunk 82623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 82633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 82653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue, 82663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 82673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red; 82683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 82703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes; 82713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 82733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=6L; 82743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 82753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy num_bytes=10L; 82763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) (num_bytes-4L)); 82773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 82783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,(unsigned long) (num_bytes-4L)); 82793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToChar(image->background_color.red); 82803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToChar(image->background_color.green); 82813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToChar(image->background_color.blue); 82823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+4)=0; 82833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+5)=red; 82843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+6)=0; 82853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+7)=green; 82863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+8)=0; 82873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(chunk+9)=blue; 82883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) num_bytes,chunk); 82893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); 82903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 82913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 82923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent)) 82933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 82943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 82953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG sRGB chunk 82963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 82973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 82983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 82993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 83003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 83013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 83023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 83043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 83053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 83063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma != 0.0) 83103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG gAMA chunk 83133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 83153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 83163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 83173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 83183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 83193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 83203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->equal_chrms == MagickFalse) && 83223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->chromaticity.red_primary.x != 0.0)) 83233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 83253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 83263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG cHRM chunk 83293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 83313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 83323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 83333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 83343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 83353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 83363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 83373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 83383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 83393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 83403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 83413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 83423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 83433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 83443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 83453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 83463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 83473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && !mng_info->equal_physs) 83503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG pHYs chunk 83533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 83553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 83563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 83573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 83583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 83603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 83613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 83623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 83633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 83643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 83683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 83703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 83713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 83723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 83733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 83743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 83763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 83783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 83793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 83803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 83833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 83843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 83853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 83863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) 83873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 83883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 83893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write JNG oFFs chunk 83903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 83913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 83923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_oFFs); 83933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_oFFs,9L); 83943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+4,(long) (image->page.x)); 83953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGsLong(chunk+8,(long) (image->page.y)); 83963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 83973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 83983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 83993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) 84013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); /* data length=8 */ 84033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_vpAg); 84043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_vpAg,9L); 84053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(png_uint_32) image->page.width); 84063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) image->page.height); 84073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; /* unit = pixels */ 84083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 84093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 84103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (transparent) 84143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_alpha_compression_method==0) 84163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 84183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 84193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 84213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len; 84223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IDAT chunk header */ 84243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write IDAT chunks from blob, length=%lu.", 84273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 84283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Copy IDAT chunks */ 84303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=0; 84313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=blob+8; 84323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=8; i<(long) length; i+=len+12) 84333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy len=(*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); 84353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=4; 84363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ 84373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Found an IDAT chunk. */ 84393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) len); 84403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IDAT,(unsigned long) len); 84413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) len+4,p); 84423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image, 84433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy crc32(0,p,(uInt) len+4)); 84443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Skipping %c%c%c%c chunk, length=%lu.", 84503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *(p),*(p+1),*(p+2),*(p+3),len); 84513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=(8+len); 84533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 84563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 84573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAA chunk header */ 84583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAA chunk, length=%lu.", 84613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 84623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 84633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAA); 84643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAA,length); 84653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) data */ 84663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 84673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 84683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, 84693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) length)); 84703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 84723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 84733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Encode image as a JPEG blob */ 84753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image_info."); 84783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); 84793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image_info == (ImageInfo *) NULL) 84803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 84813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 84843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating jpeg_image."); 84853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception); 84873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jpeg_image == (Image *) NULL) 84883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 84893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 84903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) AcquireUniqueFilename(jpeg_image->filename); 84923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) FormatMagickString(jpeg_image_info->filename,MaxTextExtent,"%s", 84933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->filename); 84943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, 84963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &image->exception); 84973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 84983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 84993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Created jpeg_image, %lu x %lu.",jpeg_image->columns, 85013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image->rows); 85023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (jng_color_type == 8 || jng_color_type == 12) 85043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->type=GrayscaleType; 85053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info->quality=jng_quality % 1000; 85063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MaxTextExtent); 85073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CopyMagickString(jpeg_image->magick,"JPEG",MaxTextExtent); 85083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Creating blob."); 85113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=ImageToBlob(jpeg_image_info,jpeg_image,&length,&image->exception); 85123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 85143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Successfully read jpeg_image into a blob, length=%lu.", 85163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Write JDAT chunk, length=%lu.", 85203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (unsigned long) length); 85213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 85223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write JDAT chunk(s) */ 85233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 85243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_JDAT); 85253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_JDAT,length); 85263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,blob); 85283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); 85293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image=DestroyImage(jpeg_image); 85313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RelinquishUniqueFileResource(jpeg_image_info->filename); 85323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy jpeg_image_info=DestroyImageInfo(jpeg_image_info); 85333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blob=(unsigned char *) RelinquishMagickMemory(blob); 85343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write any JNG-chunk-e profiles */ 85363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) png_write_chunk_from_profile(image,"JNG-chunk-e",(int) logging); 85373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Write IEND chunk */ 85393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0L); 85403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_IEND); 85413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_IEND,0); 85423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 85433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 85443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 85463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 85473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " exit WriteOneJNGImage()"); 85483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 85493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 85503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 85533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 85543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 85553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 85563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 85573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e J N G I m a g e % 85583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 85593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 85603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 85613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 85623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. 85643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% JNG support written by Glenn Randers-Pehrson, glennrp@image... 85663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteJNGImage method is: 85683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 85703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 85723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 85743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 85763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 85773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 85783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 85793ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) 85803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 85813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 85823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 85833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 85853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 85863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 85883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure; 85893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 85913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging; 85923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 85933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 85943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 85953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 85963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 85973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 85983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 85993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 86003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 86013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteJNGImage()"); 86023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 86033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 86043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 86083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 86103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 86113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 86123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 86133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 86153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 86173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 86183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 86193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); 86213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,image_info,image); 86233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 86243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 86263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 86273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 86283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); 86293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 86303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 86313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 86323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86353ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 86363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 86373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const char 86383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *option; 86393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 86413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *next_image; 86423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 86443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 86453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfo 86473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *mng_info; 86483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 86503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure, 86513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count, 86523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations, 86533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte; 86543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile int 86563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 86573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 86583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte, 86593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 86603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray, 86613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging, 86623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi, 86633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize, 86643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte; 86653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register long 86673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 86683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 86703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[800]; 86713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned int 86733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng, 86743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng; 86753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy volatile unsigned long 86773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene; 86783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 86803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=0, 86813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay; 86823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if (PNG_LIBPNG_VER < 10007) 86843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->verbose) 86853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library (libpng-%s) is rather old.\n", 86863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 86873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 86883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 86893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 86903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 86913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 86923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 86933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 86943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 86953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 86963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 86973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter WriteMNGImage()"); 86983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); 86993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 87003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 87013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Allocate a MngInfo structure. 87043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickFalse; 87063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); 87073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info == (MngInfo *) NULL) 87083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 87093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize members of the MngInfo structure. 87113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); 87133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->image=image; 87143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy have_mng_structure=MagickTrue; 87153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_mng=LocaleCompare(image_info->magick,"MNG") == 0; 87163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * See if user has requested a specific PNG subformat to be used 87193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * for all of the PNGs in the MNG being written, e.g., 87203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 87213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * convert *.png png8:animation.mng 87223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * 87233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * To do: check -define png:bit_depth and png:color_type as well, 87243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * or perhaps use mng:bit_depth and mng:color_type instead for 87253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy * global settings. 87263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; 87293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; 87303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; 87313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickFalse; 87333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 87343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_jng=MagickTrue; 87353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->adjoin=image_info->adjoin && 87373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && write_mng; 87383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) 87403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=MagickFalse; 87413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy optimize=(image_info->type == OptimizeType || image_info->type == 87433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy UndefinedType); 87443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 87463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* Log some info about the input */ 87483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 87493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 87503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Checking input image(s)"); 87533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 87543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: TRUE"); 87563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Optimize: FALSE"); 87593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image_info depth: %ld",image_info->depth); 87613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Type: %d",image_info->type); 87633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 87653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 87663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Scene: %ld",scene++); 87693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image depth: %lu",p->depth); 87713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte) 87723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: True"); 87743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Matte: False"); 87773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class == PseudoClass) 87783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: PseudoClass"); 87803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Storage class: DirectClass"); 87833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors) 87843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: %lu",p->colors); 87863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 87873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 87883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Number of colors: unspecified"); 87893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 87903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 87913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 87933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 87943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 87953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get PseudoClass images whose RGB values don't match 87963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the colors in the colormap. This code syncs the RGB values. 87973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 87983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 87993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->taint && p->storage_class == PseudoClass) 88053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SyncImage(p); 88063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 88073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 88083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_BUILD_PALETTE 88123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (optimize) 88133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Sometimes we get DirectClass images that have 256 colors or fewer. 88163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy This code will convert them to PseudoClass and build a colormap. 88173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 88193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 88203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) 88223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->storage_class != PseudoClass) 88243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=GetNumberColors(p,(FILE *) NULL,&p->exception); 88263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->colors <= 256) 88273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p->colors=0; 88293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (p->matte != MagickFalse) 88303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteMatteType); 88313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 88323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) SetImageType(p,PaletteType); 88333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin == MagickFalse) 88363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 88373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 88423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 88433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 88443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 88453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickFalse; 88473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickFalse; 88483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=1; 88493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=1; 88503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 88523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->page != (char *) NULL) 88533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine image bounding box. 88563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy SetGeometry(image,&mng_info->page); 88583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, 88593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); 88603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 88613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 88623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned int 88643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom; 88653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 88673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red, 88683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green, 88693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue; 88703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 88723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickTrue; 88733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->page.width || mng_info->page.height) 88743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_geom=MagickFalse; 88753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 88763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Check all the scenes. 88773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 88783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy initial_delay=image->delay; 88793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 88803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; 88813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickTrue, 88823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickTrue; 88833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickTrue; 88843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickTrue; 88853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count=0; 88863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 88873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 88883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickTrue; 88893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 88903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickFalse; 88913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 88923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (next_image=image; next_image != (Image *) NULL; ) 88933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_geom) 88953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 88963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->columns+next_image->page.x) > mng_info->page.width) 88973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.width=next_image->columns+next_image->page.x; 88983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->rows+next_image->page.y) > mng_info->page.height) 88993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page.height=next_image->rows+next_image->page.y; 89003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->page.x || next_image->page.y) 89023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_defi=MagickTrue; 89033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte) 89043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_matte=MagickTrue; 89053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) next_image->dispose >= BackgroundDispose) 89063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->matte || next_image->page.x || next_image->page.y || 89073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((next_image->columns < mng_info->page.width) && 89083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->rows < mng_info->page.height))) 89093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 89103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->iterations) 89113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickTrue; 89123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=next_image->delay; 89133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != initial_delay || final_delay > 1UL* 89143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->ticks_per_second) 89153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=1; 89163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 89173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 89183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy check for global palette possibility. 89203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->matte != MagickFalse) 89223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte == 0) 89243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (ImageIsGray(image) == MagickFalse) 89263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy all_images_are_gray=MagickFalse; 89273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,next_image); 89283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (use_global_plte == 0) 89293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=mng_info->equal_palettes; 89303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=!mng_info->equal_palettes; 89313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(next_image) != (Image *) NULL) 89343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->background_color.red != 89363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.red || 89373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.green != 89383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.green || 89393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->background_color.blue != 89403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->background_color.blue) 89413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 89423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->gamma != next_image->next->gamma) 89433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 89443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->rendering_intent != 89453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->rendering_intent) 89463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 89473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((next_image->units != next_image->next->units) || 89483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->x_resolution != next_image->next->x_resolution) || 89493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (next_image->y_resolution != next_image->next->y_resolution)) 89503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 89513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 89523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (next_image->chromaticity.red_primary.x != 89543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.x || 89553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.red_primary.y != 89563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.red_primary.y || 89573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.x != 89583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.x || 89593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.green_primary.y != 89603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.green_primary.y || 89613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.x != 89623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.x || 89633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.blue_primary.y != 89643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.blue_primary.y || 89653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.x != 89663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.x || 89673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->chromaticity.white_point.y != 89683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image->next->chromaticity.white_point.y) 89693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 89703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_count++; 89733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy next_image=GetNextImageInList(next_image); 89743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_count < 2) 89763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_backgrounds=MagickFalse; 89783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_chrms=MagickFalse; 89793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_gammas=MagickFalse; 89803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs=MagickFalse; 89813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_physs=MagickFalse; 89823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy use_global_plte=MagickFalse; 89833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 89843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_local_plte=MagickTrue; 89853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 89863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy need_iterations=MagickFalse; 89873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 89883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram == MagickFalse) 89893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Only certain framing rates 100/n are exactly representable without 89923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy the FRAM chunk but we'll allow some slop in VLC files 89933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 89943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay == 0) 89953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_iterations != MagickFalse) 89973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 89983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 89993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy It's probably a GIF with loop; don't run it *too* fast. 90003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay=10; 90023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ThrowMagickException(&image->exception, 90033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetMagickModule(),CoderError, 90043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "input has zero delay between all frames; assuming 10 cs", 90053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "`%s'",""); 90063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=0; 90093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay != 0) 90113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second/final_delay; 90123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 50) 90133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=2; 90143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 75) 90153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1; 90163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (final_delay > 125) 90173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; 90183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi && final_delay > 2 && (final_delay != 4) && 90193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && 90203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (final_delay != 25) && (final_delay != 50) && (final_delay != 90213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1UL*image->ticks_per_second)) 90223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ 90233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram != MagickFalse) 90253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->ticks_per_second=1UL*image->ticks_per_second; 90263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If pseudocolor, we should also check to see if all the 90283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy palettes are identical and write a global PLTE if they are. 90293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ../glennrp Feb 99. 90303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MNG version 1.0 signature and MHDR chunk. 90333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); 90353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ 90363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MHDR); 90373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MHDR,28L); 90383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,mng_info->page.width); 90393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,mng_info->page.height); 90403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,mng_info->ticks_per_second); 90413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,0L); /* layer count=unknown */ 90423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,0L); /* frame count=unknown */ 90433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,0L); /* play time=unknown */ 90443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_jng) 90453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 90473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 90493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ 90503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ 90523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 90563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ 90573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ 90593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_matte) 90643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 90663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,11L); /* simplicity=LC */ 90673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,9L); /* simplicity=VLC */ 90693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi || mng_info->need_fram || use_global_plte) 90733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ 90743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 90753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ 90763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,32,chunk); 90793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); 90803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy option=GetImageOption(image_info,"mng:need-cacheoff"); 90813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (option != (const char *) NULL) 90823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 90833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 90843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 90853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 90863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 90873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. 90883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 90893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_nEED); 90903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); 90913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,(unsigned long) length); 90923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_nEED,(unsigned long) length); 90933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length+=4; 90943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,length,chunk); 90953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); 90963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 90973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((GetPreviousImageInList(image) == (Image *) NULL) && 90983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (GetNextImageInList(image) != (Image *) NULL) && 90993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->iterations != 1)) 91003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG TERM chunk 91033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 91053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_TERM); 91063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_TERM,10L); 91073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=3; /* repeat animation */ 91083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* show last frame when done */ 91093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* 91103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 91113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 91123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,PNG_UINT_31_MAX); 91133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) image->iterations); 91153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 91163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM delay: %lu", 91193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (png_uint_32) (mng_info->ticks_per_second* 91203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy final_delay/MagickMax(image->ticks_per_second,1))); 91213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->iterations == 0) 91223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " TERM iterations: %lu",PNG_UINT_31_MAX); 91243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 91263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Image iterations: %lu",image->iterations); 91273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 91293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 91303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy To do: check for cHRM+gAMA == sRGB, and write sRGB instead. 91333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->colorspace == sRGBColorspace || image->rendering_intent) && 91353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_srgbs) 91363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG sRGB chunk 91393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); 91413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_sRGB); 91423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_sRGB,1L); 91433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->rendering_intent != UndefinedIntent) 91443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (image->rendering_intent-1); 91453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) (PerceptualIntent-1); 91473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 91483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 91493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_srgb=MagickTrue; 91503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 91523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->gamma && mng_info->equal_gammas) 91543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG gAMA chunk 91573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,4L); 91593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_gAMA); 91603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_gAMA,4L); 91613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*image->gamma+0.5)); 91623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,8,chunk); 91633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); 91643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_gama=MagickTrue; 91653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_chrms) 91673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PrimaryInfo 91693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary; 91703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 91713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG cHRM chunk 91733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,32L); 91753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_cHRM); 91763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_cHRM,32L); 91773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.white_point; 91783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (100000*primary.x+0.5)); 91793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (100000*primary.y+0.5)); 91803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.red_primary; 91813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(unsigned long) (100000*primary.x+0.5)); 91823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+16,(unsigned long) (100000*primary.y+0.5)); 91833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.green_primary; 91843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+20,(unsigned long) (100000*primary.x+0.5)); 91853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+24,(unsigned long) (100000*primary.y+0.5)); 91863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy primary=image->chromaticity.blue_primary; 91873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+28,(unsigned long) (100000*primary.x+0.5)); 91883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+32,(unsigned long) (100000*primary.y+0.5)); 91893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,36,chunk); 91903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); 91913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_chrm=MagickTrue; 91923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 91943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->x_resolution && image->y_resolution && mng_info->equal_physs) 91953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 91963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 91973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG pHYs chunk 91983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 91993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,9L); 92003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_pHYs); 92013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_pHYs,9L); 92023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerInchResolution) 92033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 92053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0/2.54+0.5)); 92063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 92073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0/2.54+0.5)); 92083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 92093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->units == PixelsPerCentimeterResolution) 92133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) 92153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->x_resolution*100.0+0.5)); 92163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) 92173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->y_resolution*100.0+0.5)); 92183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=1; 92193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 92213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+4,(unsigned long) (image->x_resolution+0.5)); 92233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(unsigned long) (image->y_resolution+0.5)); 92243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[12]=0; 92253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,13,chunk); 92283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); 92293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG BACK chunk and global bKGD chunk, if the image is transparent 92323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy or does not cover the entire frame. 92333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng && (image->matte || image->page.x > 0 || 92353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->page.y > 0 || (image->page.width && 92363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->page.width+image->page.x < mng_info->page.width)) 92373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy || (image->page.height && (image->page.height+image->page.y 92383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy < mng_info->page.height)))) 92393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 92413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_BACK); 92423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_BACK,6L); 92433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red=ScaleQuantumToShort(image->background_color.red); 92443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green=ScaleQuantumToShort(image->background_color.green); 92453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue=ScaleQuantumToShort(image->background_color.blue); 92463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+4,red); 92473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+6,green); 92483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGShort(chunk+8,blue); 92493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 92503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 92513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_backgrounds) 92523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,6L); 92543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_bKGD); 92553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_bKGD,6L); 92563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,10,chunk); 92573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); 92583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED 92623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((need_local_plte == MagickFalse) && 92633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->storage_class == PseudoClass) && 92643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (all_images_are_gray == MagickFalse)) 92653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 92673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 92683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 92693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 92703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 92713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 92723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 92733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 92743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 92753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 92763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 92773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red) & 0xff; 92793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green) & 0xff; 92803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue) & 0xff; 92813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 92833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); 92843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 92853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 92883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy scene=0; 92893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=0; 92903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 92913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 92923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=MagickFalse; 92933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 92943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy do 92953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->adjoin) 92973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 92983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ 92993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy defined(PNG_MNG_FEATURES_SUPPORTED) 93003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy If we aren't using a global palette for the entire MNG, check to 93023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy see if we can use one for two or more consecutive images. 93033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_local_plte && use_global_plte && !all_images_are_gray) 93053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->IsPalette) 93073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy When equal_palettes is true, this image has the same palette 93103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy as the previous PseudoClass image 93113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=mng_info->equal_palettes; 93133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->equal_palettes=PalettesAreEqual(image,image->next); 93143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->equal_palettes && !mng_info->have_write_global_plte) 93153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write MNG PLTE chunk 93183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned long 93203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length; 93213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy data_length=3*image->colors; 93233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,data_length); 93243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_PLTE); 93253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_PLTE,data_length); 93263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < (long) image->colors; i++) 93273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); 93293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); 93303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); 93313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,data_length+4,chunk); 93333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk, 93343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (uInt) (data_length+4))); 93353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickTrue; 93363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->have_write_global_plte=MagickFalse; 93403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 93423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (need_defi) 93433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy long 93453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x, 93463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y; 93473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (scene) 93493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=mng_info->page.x; 93513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=mng_info->page.y; 93523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_x=0; 93563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy previous_y=0; 93573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->page=image->page; 93593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((mng_info->page.x != previous_x) || 93603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->page.y != previous_y)) 93613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,12L); /* data length=12 */ 93633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_DEFI); 93643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_DEFI,12L); 93653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=0; /* object 0 MSB */ 93663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* object 0 LSB */ 93673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=0; /* visible */ 93683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* abstract */ 93693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+8,(png_uint_32) mng_info->page.x); 93703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+12,(png_uint_32) mng_info->page.y); 93713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,16,chunk); 93723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); 93733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->write_mng=write_mng; 93783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((int) image->dispose >= 3) 93803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->framing_mode=3; 93813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (mng_info->need_fram && mng_info->adjoin && 93833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((image->delay != mng_info->delay) || 93843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (mng_info->framing_mode != mng_info->old_framing_mode))) 93853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->delay == mng_info->delay) 93873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 93883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 93893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the new framing mode. 93903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 93913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,1L); /* data length=1 */ 93923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 93933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,1L); 93943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 93953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,5,chunk); 93963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); 93973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 93983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 93993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write a MNG FRAM chunk with the delay. 94023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,10L); /* data length=10 */ 94043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_FRAM); 94053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_FRAM,10L); 94063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[4]=(unsigned char) mng_info->framing_mode; 94073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[5]=0; /* frame name separator (no name) */ 94083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[6]=2; /* flag for changing default delay */ 94093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[7]=0; /* flag for changing frame timeout */ 94103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[8]=0; /* flag for changing frame clipping */ 94113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy chunk[9]=0; /* flag for changing frame sync_id */ 94123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGLong(chunk+10,(png_uint_32) 94133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((mng_info->ticks_per_second* 94143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->delay)/MagickMax(image->ticks_per_second,1))); 94153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,14,chunk); 94163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); 94173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->delay=image->delay; 94183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy mng_info->old_framing_mode=mng_info->framing_mode; 94203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#if defined(JNG_SUPPORTED) 94233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression == JPEGCompression) 94243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ImageInfo 94263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *write_info; 94273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 94293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 94303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing JNG object."); 94313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* To do: specify the desired alpha compression method. */ 94323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=CloneImageInfo(image_info); 94333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info->compression=UndefinedCompression; 94343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOneJNGImage(mng_info,write_info,image); 94353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy write_info=DestroyImageInfo(write_info); 94363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 94383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 94393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 94413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(), 94423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy " Writing PNG object."); 94433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=WriteOnePNGImage(mng_info,image_info,image); 94443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 94463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 94473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 94493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 94503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 94513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CatchImageException(image); 94533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (GetNextImageInList(image) == (Image *) NULL) 94543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 94553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=SyncNextImageInList(image); 94563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,SaveImagesTag,scene++, 94573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy GetImageListLength(image)); 94583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 94593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 94603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } while (mng_info->adjoin); 94613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (write_mng) 94623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 94633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy while (GetPreviousImageInList(image) != (Image *) NULL) 94643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=GetPreviousImageInList(image); 94653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write the MEND chunk. 94673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,0x00000000L); 94693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNGType(chunk,mng_MEND); 94703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy LogPNGChunk((int) logging,mng_MEND,0L); 94713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,4,chunk); 94723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); 94733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 94743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 94753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Relinquish resources. 94763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 94773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 94783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MngInfoFreeStruct(mng_info,&have_mng_structure); 94793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (logging != MagickFalse) 94803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); 94813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 94823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 94833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#else /* PNG_LIBPNG_VER > 95 */ 94843ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) 94853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 94863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=image; 94873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy printf("Your PNG library is too old: You have libpng-%s\n", 94883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PNG_LIBPNG_VER_STRING); 94893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowBinaryException(CoderError,"PNG library is too old", 94903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 94913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 94923ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) 94933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 94943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(WritePNGImage(image_info,image)); 94953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 94963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif /* PNG_LIBPNG_VER > 95 */ 94973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 9498