diff options
| -rw-r--r-- | package/libpng/Makefile | 4 | ||||
| -rw-r--r-- | package/libpng/patches/libpng-1.6.22-apng.patch (renamed from package/libpng/patches/libpng-1.6.19-apng.patch) | 1486 |
2 files changed, 773 insertions, 717 deletions
diff --git a/package/libpng/Makefile b/package/libpng/Makefile index 9ba92e60d..8026f9ae5 100644 --- a/package/libpng/Makefile +++ b/package/libpng/Makefile @@ -4,9 +4,9 @@ include ${ADK_TOPDIR}/rules.mk PKG_NAME:= libpng -PKG_VERSION:= 1.6.20 +PKG_VERSION:= 1.6.22 PKG_RELEASE:= 1 -PKG_HASH:= 55c5959e9f3484d96141a3226c53bc9da42a4845e70879d3e1d6e94833d1918b +PKG_HASH:= 6b5a6ad5c5801ec4d24aacc87a0ed7b666cd586478174f69368a1d7747715226 PKG_DESCR:= library for reading/writing png images PKG_SECTION:= libs/image PKG_DEPENDS:= zlib diff --git a/package/libpng/patches/libpng-1.6.19-apng.patch b/package/libpng/patches/libpng-1.6.22-apng.patch index 6a3f862b3..66440b70f 100644 --- a/package/libpng/patches/libpng-1.6.19-apng.patch +++ b/package/libpng/patches/libpng-1.6.22-apng.patch @@ -1,147 +1,129 @@ -diff -Naru libpng-1.6.19.org/png.h libpng-1.6.19/png.h ---- libpng-1.6.19.org/png.h 2015-11-15 22:34:42.407615478 +0900 -+++ libpng-1.6.19/png.h 2015-11-15 22:34:42.476617887 +0900 -@@ -334,6 +334,10 @@ - # include "pnglibconf.h" - #endif +Index: LICENSE +=================================================================== +--- LICENSE ++++ LICENSE +@@ -8,6 +8,12 @@ + If you modify libpng you may insert additional notices immediately following + this sentence. -+#define PNG_APNG_SUPPORTED -+#define PNG_READ_APNG_SUPPORTED -+#define PNG_WRITE_APNG_SUPPORTED ++This modified version of libpng code adds animated PNG support and is ++released under the libpng license described below. The modifications are ++Copyright (c) 2006-2007 Andrew Smith, Copyright (c) 2008-2016 Max Stepin, ++and are delimited by "#ifdef PNG_APNG_SUPPORTED / #endif" directives ++surrounding them in the modified libpng source files. + - #ifndef PNG_VERSION_INFO_ONLY - /* Machine specific configuration. */ - # include "pngconf.h" -@@ -429,6 +433,17 @@ - * See pngconf.h for base types that vary by machine/system - */ + This code is released under the libpng license. -+#ifdef PNG_APNG_SUPPORTED -+/* dispose_op flags from inside fcTL */ -+#define PNG_DISPOSE_OP_NONE 0x00 -+#define PNG_DISPOSE_OP_BACKGROUND 0x01 -+#define PNG_DISPOSE_OP_PREVIOUS 0x02 -+ -+/* blend_op flags from inside fcTL */ -+#define PNG_BLEND_OP_SOURCE 0x00 -+#define PNG_BLEND_OP_OVER 0x01 -+#endif /* PNG_APNG_SUPPORTED */ -+ - /* This triggers a compiler error in png.c, if png.c and png.h - * do not agree upon the version number. - */ -@@ -750,6 +765,10 @@ - #define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ - #if INT_MAX >= 0x8000 /* else this might break */ - #define PNG_INFO_IDAT 0x8000 /* ESR, 1.0.6 */ -+#ifdef PNG_APNG_SUPPORTED -+#define PNG_INFO_acTL 0x10000 -+#define PNG_INFO_fcTL 0x20000 + libpng versions 1.0.7, July 1, 2000 through 1.6.22, May 26, 2016 are +Index: pngread.c +=================================================================== +--- pngread.c ++++ pngread.c +@@ -158,6 +158,9 @@ + + else if (chunk_name == png_IDAT) + { ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_have_info(png_ptr, info_ptr); +#endif + png_ptr->idat_size = length; + break; + } +@@ -247,6 +250,17 @@ + png_handle_iTXt(png_ptr, info_ptr, length); #endif - /* This is used for the transformation routines, as some of them -@@ -788,6 +807,10 @@ - #ifdef PNG_PROGRESSIVE_READ_SUPPORTED - typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop)); - typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop)); -+#ifdef PNG_APNG_SUPPORTED -+typedef PNG_CALLBACK(void, *png_progressive_frame_ptr, (png_structp, -+ png_uint_32)); ++#ifdef PNG_READ_APNG_SUPPORTED ++ else if (chunk_name == png_acTL) ++ png_handle_acTL(png_ptr, info_ptr, length); ++ ++ else if (chunk_name == png_fcTL) ++ png_handle_fcTL(png_ptr, info_ptr, length); ++ ++ else if (chunk_name == png_fdAT) ++ png_handle_fdAT(png_ptr, info_ptr, length); +#endif ++ + else + png_handle_unknown(png_ptr, info_ptr, length, + PNG_HANDLE_CHUNK_AS_DEFAULT); +@@ -254,6 +268,72 @@ + } + #endif /* SEQUENTIAL_READ */ - /* The following callback receives png_uint_32 row_number, int pass for the - * png_bytep data of the row. When transforming an interlaced image the -@@ -3108,6 +3131,74 @@ - /******************************************************************************* - * END OF HARDWARE AND SOFTWARE OPTIONS - ******************************************************************************/ -+#ifdef PNG_APNG_SUPPORTED -+PNG_EXPORT(245, png_uint_32, png_get_acTL, (png_structp png_ptr, -+ png_infop info_ptr, png_uint_32 *num_frames, png_uint_32 *num_plays)); ++#ifdef PNG_READ_APNG_SUPPORTED ++void PNGAPI ++png_read_frame_head(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_byte have_chunk_after_DAT; /* after IDAT or after fdAT */ + -+PNG_EXPORT(246, png_uint_32, png_set_acTL, (png_structp png_ptr, -+ png_infop info_ptr, png_uint_32 num_frames, png_uint_32 num_plays)); ++ png_debug(0, "Reading frame head"); + -+PNG_EXPORT(247, png_uint_32, png_get_num_frames, (png_structp png_ptr, -+ png_infop info_ptr)); ++ if ((png_ptr->mode & PNG_HAVE_acTL) == 0) ++ png_error(png_ptr, "attempt to png_read_frame_head() but " ++ "no acTL present"); + -+PNG_EXPORT(248, png_uint_32, png_get_num_plays, (png_structp png_ptr, -+ png_infop info_ptr)); ++ /* do nothing for the main IDAT */ ++ if (png_ptr->num_frames_read == 0) ++ return; + -+PNG_EXPORT(249, png_uint_32, png_get_next_frame_fcTL, -+ (png_structp png_ptr, png_infop info_ptr, png_uint_32 *width, -+ png_uint_32 *height, png_uint_32 *x_offset, png_uint_32 *y_offset, -+ png_uint_16 *delay_num, png_uint_16 *delay_den, png_byte *dispose_op, -+ png_byte *blend_op)); ++ png_read_reset(png_ptr); ++ png_ptr->flags &= ~PNG_FLAG_ROW_INIT; ++ png_ptr->mode &= ~PNG_HAVE_fcTL; + -+PNG_EXPORT(250, png_uint_32, png_set_next_frame_fcTL, -+ (png_structp png_ptr, png_infop info_ptr, png_uint_32 width, -+ png_uint_32 height, png_uint_32 x_offset, png_uint_32 y_offset, -+ png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op, -+ png_byte blend_op)); ++ have_chunk_after_DAT = 0; ++ for (;;) ++ { ++ png_uint_32 length = png_read_chunk_header(png_ptr); + -+PNG_EXPORT(251, png_uint_32, png_get_next_frame_width, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(252, png_uint_32, png_get_next_frame_height, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(253, png_uint_32, png_get_next_frame_x_offset, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(254, png_uint_32, png_get_next_frame_y_offset, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(255, png_uint_16, png_get_next_frame_delay_num, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(256, png_uint_16, png_get_next_frame_delay_den, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(257, png_byte, png_get_next_frame_dispose_op, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(258, png_byte, png_get_next_frame_blend_op, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(259, png_byte, png_get_first_frame_is_hidden, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(260, png_uint_32, png_set_first_frame_is_hidden, -+ (png_structp png_ptr, png_infop info_ptr, png_byte is_hidden)); ++ if (png_ptr->chunk_name == png_IDAT) ++ { ++ /* discard trailing IDATs for the first frame */ ++ if (have_chunk_after_DAT != 0 || png_ptr->num_frames_read > 1) ++ png_error(png_ptr, "png_read_frame_head(): out of place IDAT"); ++ png_crc_finish(png_ptr, length); ++ } + -+#ifdef PNG_READ_APNG_SUPPORTED -+PNG_EXPORT(261, void, png_read_frame_head, (png_structp png_ptr, -+ png_infop info_ptr)); -+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -+PNG_EXPORT(262, void, png_set_progressive_frame_fn, (png_structp png_ptr, -+ png_progressive_frame_ptr frame_info_fn, -+ png_progressive_frame_ptr frame_end_fn)); -+#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ -+#endif /* PNG_READ_APNG_SUPPORTED */ ++ else if (png_ptr->chunk_name == png_fcTL) ++ { ++ png_handle_fcTL(png_ptr, info_ptr, length); ++ have_chunk_after_DAT = 1; ++ } + -+#ifdef PNG_WRITE_APNG_SUPPORTED -+PNG_EXPORT(263, void, png_write_frame_head, (png_structp png_ptr, -+ png_infop info_ptr, png_bytepp row_pointers, -+ png_uint_32 width, png_uint_32 height, -+ png_uint_32 x_offset, png_uint_32 y_offset, -+ png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op, -+ png_byte blend_op)); ++ else if (png_ptr->chunk_name == png_fdAT) ++ { ++ png_ensure_sequence_number(png_ptr, length); + -+PNG_EXPORT(264, void, png_write_frame_tail, (png_structp png_ptr, -+ png_infop info_ptr)); -+#endif /* PNG_WRITE_APNG_SUPPORTED */ -+#endif /* PNG_APNG_SUPPORTED */ - - /* Maintainer: Put new public prototypes here ^, in libpng.3, in project - * defs, and in scripts/symbols.def. -@@ -3117,7 +3208,11 @@ - * one to use is one more than this.) - */ - #ifdef PNG_EXPORT_LAST_ORDINAL -+#ifdef PNG_APNG_SUPPORTED -+ PNG_EXPORT_LAST_ORDINAL(264); -+#else - PNG_EXPORT_LAST_ORDINAL(244); -+#endif /* PNG_APNG_SUPPORTED */ - #endif - - #ifdef __cplusplus -diff -Naru libpng-1.6.19.org/pngget.c libpng-1.6.19/pngget.c ---- libpng-1.6.19.org/pngget.c 2015-11-15 22:34:42.408615513 +0900 -+++ libpng-1.6.19/pngget.c 2015-11-15 22:34:42.476617887 +0900 ++ /* discard trailing fdATs for frames other than the first */ ++ if (have_chunk_after_DAT == 0 && png_ptr->num_frames_read > 1) ++ png_crc_finish(png_ptr, length - 4); ++ else if(png_ptr->mode & PNG_HAVE_fcTL) ++ { ++ png_ptr->idat_size = length - 4; ++ png_ptr->mode |= PNG_HAVE_IDAT; ++ ++ break; ++ } ++ else ++ png_error(png_ptr, "png_read_frame_head(): out of place fdAT"); ++ } ++ else ++ { ++ png_warning(png_ptr, "Skipped (ignored) a chunk " ++ "between APNG chunks"); ++ png_crc_finish(png_ptr, length); ++ } ++ } ++} ++#endif /* READ_APNG */ ++ + /* Optional call to update the users info_ptr structure */ + void PNGAPI + png_read_update_info(png_structrp png_ptr, png_inforp info_ptr) +Index: pngget.c +=================================================================== +--- pngget.c ++++ pngget.c @@ -1216,4 +1216,166 @@ # endif #endif @@ -154,7 +136,7 @@ diff -Naru libpng-1.6.19.org/pngget.c libpng-1.6.19/pngget.c + png_debug1(1, "in %s retrieval function", "acTL"); + + if (png_ptr != NULL && info_ptr != NULL && -+ (info_ptr->valid & PNG_INFO_acTL) && ++ (info_ptr->valid & PNG_INFO_acTL) != 0 && + num_frames != NULL && num_plays != NULL) + { + *num_frames = info_ptr->num_frames; @@ -195,7 +177,7 @@ diff -Naru libpng-1.6.19.org/pngget.c libpng-1.6.19/pngget.c + png_debug1(1, "in %s retrieval function", "fcTL"); + + if (png_ptr != NULL && info_ptr != NULL && -+ (info_ptr->valid & PNG_INFO_fcTL) && ++ (info_ptr->valid & PNG_INFO_fcTL) != 0 && + width != NULL && height != NULL && + x_offset != NULL && y_offset != NULL && + delay_num != NULL && delay_den != NULL && @@ -307,11 +289,292 @@ diff -Naru libpng-1.6.19.org/pngget.c libpng-1.6.19/pngget.c + + return 0; +} -+#endif /* PNG_APNG_SUPPORTED */ ++#endif /* APNG */ #endif /* READ || WRITE */ -diff -Naru libpng-1.6.19.org/pnginfo.h libpng-1.6.19/pnginfo.h ---- libpng-1.6.19.org/pnginfo.h 2015-11-15 22:34:42.408615513 +0900 -+++ libpng-1.6.19/pnginfo.h 2015-11-15 22:34:42.477617922 +0900 +Index: png.c +=================================================================== +--- png.c ++++ png.c +@@ -775,17 +775,21 @@ + #else + # ifdef __STDC__ + return PNG_STRING_NEWLINE \ +- "libpng version 1.6.22 - May 26, 2016" PNG_STRING_NEWLINE \ ++ "libpng version 1.6.22+apng - May 26, 2016" PNG_STRING_NEWLINE \ + "Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson" \ + PNG_STRING_NEWLINE \ + "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ + "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ +- PNG_STRING_NEWLINE; ++ PNG_STRING_NEWLINE \ ++ "Portions Copyright (c) 2006-2007 Andrew Smith" PNG_STRING_NEWLINE \ ++ "Portions Copyright (c) 2008-2016 Max Stepin" PNG_STRING_NEWLINE ; + # else +- return "libpng version 1.6.22 - May 26, 2016\ ++ return "libpng version 1.6.22+apng - May 26, 2016\ + Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson\ + Copyright (c) 1996-1997 Andreas Dilger\ +- Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; ++ Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\ ++ Portions Copyright (c) 2006-2007 Andrew Smith\ ++ Portions Copyright (c) 2008-2016 Max Stepin"; + # endif + #endif + } +Index: png.h +=================================================================== +--- png.h ++++ png.h +@@ -23,6 +23,12 @@ + * If you modify libpng you may insert additional notices immediately following + * this sentence. + * ++ * This modified version of libpng code adds animated PNG support and is ++ * released under the libpng license described below. The modifications are ++ * Copyright (c) 2006-2007 Andrew Smith, Copyright (c) 2008-2016 Max Stepin, ++ * and are delimited by "#ifdef PNG_APNG_SUPPORTED / #endif" directives ++ * surrounding them in the modified libpng source files. ++ * + * This code is released under the libpng license. + * + * Some files in the "contrib" directory and some configure-generated +@@ -313,9 +319,9 @@ + */ + + /* Version information for png.h - this should match the version in png.c */ +-#define PNG_LIBPNG_VER_STRING "1.6.22" ++#define PNG_LIBPNG_VER_STRING "1.6.22+apng" + #define PNG_HEADER_VERSION_STRING \ +- " libpng version 1.6.22 - May 26, 2016\n" ++ " libpng version 1.6.22+apng - May 26, 2016\n" + + #define PNG_LIBPNG_VER_SONUM 16 + #define PNG_LIBPNG_VER_DLLNUM 16 +@@ -366,6 +372,10 @@ + # include "pnglibconf.h" + #endif + ++#define PNG_APNG_SUPPORTED ++#define PNG_READ_APNG_SUPPORTED ++#define PNG_WRITE_APNG_SUPPORTED ++ + #ifndef PNG_VERSION_INFO_ONLY + /* Machine specific configuration. */ + # include "pngconf.h" +@@ -461,6 +471,17 @@ + * See pngconf.h for base types that vary by machine/system + */ + ++#ifdef PNG_APNG_SUPPORTED ++/* dispose_op flags from inside fcTL */ ++#define PNG_DISPOSE_OP_NONE 0x00 ++#define PNG_DISPOSE_OP_BACKGROUND 0x01 ++#define PNG_DISPOSE_OP_PREVIOUS 0x02 ++ ++/* blend_op flags from inside fcTL */ ++#define PNG_BLEND_OP_SOURCE 0x00 ++#define PNG_BLEND_OP_OVER 0x01 ++#endif /* APNG */ ++ + /* This triggers a compiler error in png.c, if png.c and png.h + * do not agree upon the version number. + */ +@@ -781,6 +802,10 @@ + #define PNG_INFO_sPLT 0x2000U /* ESR, 1.0.6 */ + #define PNG_INFO_sCAL 0x4000U /* ESR, 1.0.6 */ + #define PNG_INFO_IDAT 0x8000U /* ESR, 1.0.6 */ ++#ifdef PNG_APNG_SUPPORTED ++#define PNG_INFO_acTL 0x10000 ++#define PNG_INFO_fcTL 0x20000 ++#endif + + /* This is used for the transformation routines, as some of them + * change these values for the row. It also should enable using +@@ -818,6 +843,10 @@ + #ifdef PNG_PROGRESSIVE_READ_SUPPORTED + typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop)); + typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop)); ++#ifdef PNG_APNG_SUPPORTED ++typedef PNG_CALLBACK(void, *png_progressive_frame_ptr, (png_structp, ++ png_uint_32)); ++#endif + + /* The following callback receives png_uint_32 row_number, int pass for the + * png_bytep data of the row. When transforming an interlaced image the +@@ -3237,6 +3266,75 @@ + * END OF HARDWARE AND SOFTWARE OPTIONS + ******************************************************************************/ + ++#ifdef PNG_APNG_SUPPORTED ++PNG_EXPORT(245, png_uint_32, png_get_acTL, (png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 *num_frames, png_uint_32 *num_plays)); ++ ++PNG_EXPORT(246, png_uint_32, png_set_acTL, (png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 num_frames, png_uint_32 num_plays)); ++ ++PNG_EXPORT(247, png_uint_32, png_get_num_frames, (png_structp png_ptr, ++ png_infop info_ptr)); ++ ++PNG_EXPORT(248, png_uint_32, png_get_num_plays, (png_structp png_ptr, ++ png_infop info_ptr)); ++ ++PNG_EXPORT(249, png_uint_32, png_get_next_frame_fcTL, ++ (png_structp png_ptr, png_infop info_ptr, png_uint_32 *width, ++ png_uint_32 *height, png_uint_32 *x_offset, png_uint_32 *y_offset, ++ png_uint_16 *delay_num, png_uint_16 *delay_den, png_byte *dispose_op, ++ png_byte *blend_op)); ++ ++PNG_EXPORT(250, png_uint_32, png_set_next_frame_fcTL, ++ (png_structp png_ptr, png_infop info_ptr, png_uint_32 width, ++ png_uint_32 height, png_uint_32 x_offset, png_uint_32 y_offset, ++ png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op, ++ png_byte blend_op)); ++ ++PNG_EXPORT(251, png_uint_32, png_get_next_frame_width, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(252, png_uint_32, png_get_next_frame_height, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(253, png_uint_32, png_get_next_frame_x_offset, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(254, png_uint_32, png_get_next_frame_y_offset, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(255, png_uint_16, png_get_next_frame_delay_num, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(256, png_uint_16, png_get_next_frame_delay_den, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(257, png_byte, png_get_next_frame_dispose_op, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(258, png_byte, png_get_next_frame_blend_op, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(259, png_byte, png_get_first_frame_is_hidden, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(260, png_uint_32, png_set_first_frame_is_hidden, ++ (png_structp png_ptr, png_infop info_ptr, png_byte is_hidden)); ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++PNG_EXPORT(261, void, png_read_frame_head, (png_structp png_ptr, ++ png_infop info_ptr)); ++#ifdef PNG_PROGRESSIVE_READ_SUPPORTED ++PNG_EXPORT(262, void, png_set_progressive_frame_fn, (png_structp png_ptr, ++ png_progressive_frame_ptr frame_info_fn, ++ png_progressive_frame_ptr frame_end_fn)); ++#endif /* PROGRESSIVE_READ */ ++#endif /* READ_APNG */ ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++PNG_EXPORT(263, void, png_write_frame_head, (png_structp png_ptr, ++ png_infop info_ptr, png_bytepp row_pointers, ++ png_uint_32 width, png_uint_32 height, ++ png_uint_32 x_offset, png_uint_32 y_offset, ++ png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op, ++ png_byte blend_op)); ++ ++PNG_EXPORT(264, void, png_write_frame_tail, (png_structp png_ptr, ++ png_infop info_ptr)); ++#endif /* WRITE_APNG */ ++#endif /* APNG */ ++ + /* Maintainer: Put new public prototypes here ^, in libpng.3, in project + * defs, and in scripts/symbols.def. + */ +@@ -3245,7 +3343,11 @@ + * one to use is one more than this.) + */ + #ifdef PNG_EXPORT_LAST_ORDINAL ++#ifdef PNG_APNG_SUPPORTED ++ PNG_EXPORT_LAST_ORDINAL(265); ++#else + PNG_EXPORT_LAST_ORDINAL(245); ++#endif /* APNG */ + #endif + + #ifdef __cplusplus +Index: pngpriv.h +=================================================================== +--- pngpriv.h ++++ pngpriv.h +@@ -537,6 +537,10 @@ + #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ + /* 0x4000 (unused) */ + #define PNG_IS_READ_STRUCT 0x8000 /* Else is a write struct */ ++#ifdef PNG_APNG_SUPPORTED ++#define PNG_HAVE_acTL 0x10000 ++#define PNG_HAVE_fcTL 0x20000 ++#endif + + /* Flags for the transformations the PNG library does on the image data */ + #define PNG_BGR 0x0001 +@@ -754,6 +758,16 @@ + #define png_tRNS PNG_U32(116, 82, 78, 83) + #define png_zTXt PNG_U32(122, 84, 88, 116) + ++#ifdef PNG_APNG_SUPPORTED ++#define png_acTL PNG_U32( 97, 99, 84, 76) ++#define png_fcTL PNG_U32(102, 99, 84, 76) ++#define png_fdAT PNG_U32(102, 100, 65, 84) ++ ++/* For png_struct.apng_flags: */ ++#define PNG_FIRST_FRAME_HIDDEN 0x0001 ++#define PNG_APNG_APP 0x0002 ++#endif ++ + /* The following will work on (signed char*) strings, whereas the get_uint_32 + * macro will fail on top-bit-set values because of the sign extension. + */ +@@ -1441,6 +1455,49 @@ + + #endif /* PROGRESSIVE_READ */ + ++#ifdef PNG_APNG_SUPPORTED ++PNG_INTERNAL_FUNCTION(void,png_ensure_fcTL_is_valid,(png_structp png_ptr, ++ png_uint_32 width, png_uint_32 height, ++ png_uint_32 x_offset, png_uint_32 y_offset, ++ png_uint_16 delay_num, png_uint_16 delay_den, ++ png_byte dispose_op, png_byte blend_op),PNG_EMPTY); ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++PNG_INTERNAL_FUNCTION(void,png_handle_acTL,(png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 length),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_handle_fcTL,(png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 length),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_handle_fdAT,(png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 length),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_have_info,(png_structp png_ptr, ++ png_infop info_ptr),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_ensure_sequence_number,(png_structp png_ptr, ++ png_uint_32 length),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_read_reset,(png_structp png_ptr),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_read_reinit,(png_structp png_ptr, ++ png_infop info_ptr),PNG_EMPTY); ++#ifdef PNG_PROGRESSIVE_READ_SUPPORTED ++PNG_INTERNAL_FUNCTION(void,png_progressive_read_reset,(png_structp png_ptr), ++ PNG_EMPTY); ++#endif /* PROGRESSIVE_READ */ ++#endif /* READ_APNG */ ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++PNG_INTERNAL_FUNCTION(void,png_write_acTL,(png_structp png_ptr, ++ png_uint_32 num_frames, png_uint_32 num_plays),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_write_fcTL,(png_structp png_ptr, ++ png_uint_32 width, png_uint_32 height, ++ png_uint_32 x_offset, png_uint_32 y_offset, ++ png_uint_16 delay_num, png_uint_16 delay_den, ++ png_byte dispose_op, png_byte blend_op),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_write_fdAT,(png_structp png_ptr, ++ png_const_bytep data, png_size_t length),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_write_reset,(png_structp png_ptr),PNG_EMPTY); ++PNG_INTERNAL_FUNCTION(void,png_write_reinit,(png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 width, png_uint_32 height),PNG_EMPTY); ++#endif /* WRITE_APNG */ ++#endif /* APNG */ ++ + /* Added at libpng version 1.6.0 */ + #ifdef PNG_GAMMA_SUPPORTED + PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr, +Index: pnginfo.h +=================================================================== +--- pnginfo.h ++++ pnginfo.h @@ -255,5 +255,18 @@ png_bytepp row_pointers; /* the image bits */ #endif @@ -331,10 +594,113 @@ diff -Naru libpng-1.6.19.org/pnginfo.h libpng-1.6.19/pnginfo.h + }; #endif /* PNGINFO_H */ -diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c ---- libpng-1.6.19.org/pngpread.c 2015-11-15 22:34:42.409615548 +0900 -+++ libpng-1.6.19/pngpread.c 2015-11-15 22:34:42.477617922 +0900 -@@ -194,6 +194,106 @@ +Index: pngstruct.h +=================================================================== +--- pngstruct.h ++++ pngstruct.h +@@ -403,6 +403,27 @@ + png_byte filter_type; + #endif + ++#ifdef PNG_APNG_SUPPORTED ++ png_uint_32 apng_flags; ++ png_uint_32 next_seq_num; /* next fcTL/fdAT chunk sequence number */ ++ png_uint_32 first_frame_width; ++ png_uint_32 first_frame_height; ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_uint_32 num_frames_read; /* incremented after all image data of */ ++ /* a frame is read */ ++#ifdef PNG_PROGRESSIVE_READ_SUPPORTED ++ png_progressive_frame_ptr frame_info_fn; /* frame info read callback */ ++ png_progressive_frame_ptr frame_end_fn; /* frame data read callback */ ++#endif ++#endif ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ png_uint_32 num_frames_to_write; ++ png_uint_32 num_frames_written; ++#endif ++#endif /* APNG */ ++ + /* New members added in libpng-1.2.0 */ + + /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ +Index: pngwrite.c +=================================================================== +--- pngwrite.c ++++ pngwrite.c +@@ -128,6 +128,10 @@ + * the application continues writing the PNG. So check the 'invalid' + * flag here too. + */ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ if ((info_ptr->valid & PNG_INFO_acTL) != 0) ++ png_write_acTL(png_ptr, info_ptr->num_frames, info_ptr->num_plays); ++#endif + #ifdef PNG_GAMMA_SUPPORTED + # ifdef PNG_WRITE_gAMA_SUPPORTED + if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 && +@@ -360,6 +364,11 @@ + if ((png_ptr->mode & PNG_HAVE_IDAT) == 0) + png_error(png_ptr, "No IDATs written into file"); + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ if (png_ptr->num_frames_written != png_ptr->num_frames_to_write) ++ png_error(png_ptr, "Not enough frames written"); ++#endif ++ + #ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED + if (png_ptr->num_palette_max > png_ptr->num_palette) + png_benign_error(png_ptr, "Wrote palette index exceeding num_palette"); +@@ -2380,4 +2389,42 @@ + } + #endif /* SIMPLIFIED_WRITE_STDIO */ + #endif /* SIMPLIFIED_WRITE */ ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++void PNGAPI ++png_write_frame_head(png_structp png_ptr, png_infop info_ptr, ++ png_bytepp row_pointers, png_uint_32 width, png_uint_32 height, ++ png_uint_32 x_offset, png_uint_32 y_offset, ++ png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op, ++ png_byte blend_op) ++{ ++ png_debug(1, "in png_write_frame_head"); ++ ++ /* there is a chance this has been set after png_write_info was called, ++ * so it would be set but not written. is there a way to be sure? */ ++ if ((info_ptr->valid & PNG_INFO_acTL) == 0) ++ png_error(png_ptr, "png_write_frame_head(): acTL not set"); ++ ++ png_write_reset(png_ptr); ++ ++ png_write_reinit(png_ptr, info_ptr, width, height); ++ ++ if ((png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN) == 0 || ++ png_ptr->num_frames_written != 0) ++ png_write_fcTL(png_ptr, width, height, x_offset, y_offset, ++ delay_num, delay_den, dispose_op, blend_op); ++ ++ PNG_UNUSED(row_pointers) ++} ++ ++void PNGAPI ++png_write_frame_tail(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_write_frame_tail"); ++ ++ png_ptr->num_frames_written++; ++ ++ PNG_UNUSED(info_ptr) ++} ++#endif /* WRITE_APNG */ + #endif /* WRITE */ +Index: pngpread.c +=================================================================== +--- pngpread.c ++++ pngpread.c +@@ -194,6 +194,89 @@ chunk_name = png_ptr->chunk_name; @@ -345,42 +711,29 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c + if (chunk_name == png_IDAT) + { + /* Discard trailing IDATs for the first frame */ -+ if (png_ptr->mode & PNG_HAVE_fcTL || png_ptr->num_frames_read > 1) ++ if ((png_ptr->mode & PNG_HAVE_fcTL) != 0 || ++ png_ptr->num_frames_read > 1) + png_error(png_ptr, "out of place IDAT"); + -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } -+ ++ PNG_PUSH_SAVE_BUFFER_IF_FULL ++ png_crc_finish(png_ptr, png_ptr->push_length); + png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -+ return; + } ++ + else if (chunk_name == png_fdAT) + { -+ if (png_ptr->buffer_size < 4) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } -+ ++ PNG_PUSH_SAVE_BUFFER_IF_LT(4) + png_ensure_sequence_number(png_ptr, 4); + -+ if (!(png_ptr->mode & PNG_HAVE_fcTL)) ++ if ((png_ptr->mode & PNG_HAVE_fcTL) == 0) + { + /* Discard trailing fdATs for frames other than the first */ + if (png_ptr->num_frames_read < 2) + png_error(png_ptr, "out of place fdAT"); + -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } -+ ++ PNG_PUSH_SAVE_BUFFER_IF_FULL ++ png_crc_finish(png_ptr, png_ptr->push_length); + png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -+ return; + } + + else @@ -389,25 +742,18 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c + png_ptr->idat_size = png_ptr->push_length - 4; + png_ptr->mode |= PNG_HAVE_IDAT; + png_ptr->process_mode = PNG_READ_IDAT_MODE; -+ -+ return; + } + } + + else if (chunk_name == png_fcTL) + { -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } -+ ++ PNG_PUSH_SAVE_BUFFER_IF_FULL + png_read_reset(png_ptr); + png_ptr->mode &= ~PNG_HAVE_fcTL; + + png_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length); + -+ if (!(png_ptr->mode & PNG_HAVE_fcTL)) ++ if ((png_ptr->mode & PNG_HAVE_fcTL) == 0) + png_error(png_ptr, "missing required fcTL chunk"); + + png_read_reinit(png_ptr, info_ptr); @@ -417,31 +763,34 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c + (*(png_ptr->frame_info_fn))(png_ptr, png_ptr->num_frames_read); + + png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ } + -+ return; ++ else if (chunk_name == png_IEND) ++ { ++ PNG_PUSH_SAVE_BUFFER_IF_FULL ++ png_warning(png_ptr, "Number of actual frames fewer than expected"); ++ png_crc_finish(png_ptr, png_ptr->push_length); ++ png_ptr->process_mode = PNG_READ_DONE_MODE; ++ png_push_have_end(png_ptr, info_ptr); + } + + else + { -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } ++ PNG_PUSH_SAVE_BUFFER_IF_FULL + png_warning(png_ptr, "Skipped (ignored) a chunk " + "between APNG chunks"); ++ png_crc_finish(png_ptr, png_ptr->push_length); + png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -+ return; + } + + return; + } -+#endif /* PNG_READ_APNG_SUPPORTED */ ++#endif /* READ_APNG */ + if (chunk_name == png_IDAT) { if ((png_ptr->mode & PNG_AFTER_IDAT) != 0) -@@ -258,6 +358,9 @@ +@@ -258,6 +341,9 @@ else if (chunk_name == png_IDAT) { @@ -451,38 +800,28 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c png_ptr->idat_size = png_ptr->push_length; png_ptr->process_mode = PNG_READ_IDAT_MODE; png_push_have_info(png_ptr, info_ptr); -@@ -403,6 +506,30 @@ - png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length); +@@ -404,6 +490,20 @@ } #endif + +#ifdef PNG_READ_APNG_SUPPORTED + else if (chunk_name == png_acTL) + { -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } -+ ++ PNG_PUSH_SAVE_BUFFER_IF_FULL + png_handle_acTL(png_ptr, info_ptr, png_ptr->push_length); + } + + else if (chunk_name == png_fcTL) + { -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } -+ ++ PNG_PUSH_SAVE_BUFFER_IF_FULL + png_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length); + } + -+#endif /* PNG_READ_APNG_SUPPORTED */ - ++#endif /* READ_APNG */ else { -@@ -533,7 +660,11 @@ + PNG_PUSH_SAVE_BUFFER_IF_FULL +@@ -533,7 +633,11 @@ png_byte chunk_tag[4]; /* TODO: this code can be commoned up with the same code in push_read */ @@ -494,14 +833,14 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c png_push_fill_buffer(png_ptr, chunk_length, 4); png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); png_reset_crc(png_ptr); -@@ -541,17 +672,64 @@ +@@ -541,17 +645,60 @@ png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; +#ifdef PNG_READ_APNG_SUPPORTED + if (png_ptr->chunk_name != png_fdAT && png_ptr->num_frames_read > 0) + { -+ if (png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) ++ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) != 0) + { + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + if (png_ptr->frame_end_fn != NULL) @@ -513,11 +852,7 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c + { + if (png_ptr->chunk_name == png_IEND) + png_error(png_ptr, "Not enough image data"); -+ if (png_ptr->push_length + 4 > png_ptr->buffer_size) -+ { -+ png_push_save_buffer(png_ptr); -+ return; -+ } ++ PNG_PUSH_SAVE_BUFFER_IF_FULL + png_warning(png_ptr, "Skipping (ignoring) a chunk between " + "APNG chunks"); + png_crc_finish(png_ptr, png_ptr->push_length); @@ -559,23 +894,24 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c } if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0) -@@ -625,6 +803,15 @@ +@@ -625,6 +772,16 @@ if (!(buffer_length > 0) || buffer == NULL) png_error(png_ptr, "No IDAT data (internal error)"); +#ifdef PNG_READ_APNG_SUPPORTED + /* If the app is not APNG-aware, decode only the first frame */ -+ if (!(png_ptr->apng_flags & PNG_APNG_APP) && png_ptr->num_frames_read > 0) ++ if ((png_ptr->apng_flags & PNG_APNG_APP) == 0 && ++ png_ptr->num_frames_read > 0) + { -+ png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; -+ return; ++ png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; ++ return; + } +#endif + /* This routine must process all the data it has been given * before returning, calling the row callback as required to * handle the uncompressed results. -@@ -1074,6 +1261,18 @@ +@@ -1074,6 +1231,18 @@ png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer); } @@ -594,193 +930,174 @@ diff -Naru libpng-1.6.19.org/pngpread.c libpng-1.6.19/pngpread.c png_voidp PNGAPI png_get_progressive_ptr(png_const_structrp png_ptr) { -diff -Naru libpng-1.6.19.org/pngpriv.h libpng-1.6.19/pngpriv.h ---- libpng-1.6.19.org/pngpriv.h 2015-11-15 22:34:42.409615548 +0900 -+++ libpng-1.6.19/pngpriv.h 2015-11-15 22:34:42.477617922 +0900 -@@ -537,6 +537,10 @@ - #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ - /* 0x4000 (unused) */ - #define PNG_IS_READ_STRUCT 0x8000 /* Else is a write struct */ +Index: pngset.c +=================================================================== +--- pngset.c ++++ pngset.c +@@ -241,6 +241,11 @@ + info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth); + + info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width); ++ +#ifdef PNG_APNG_SUPPORTED -+#define PNG_HAVE_acTL 0x10000 -+#define PNG_HAVE_fcTL 0x20000 ++ /* for non-animated png. this may be overwritten from an acTL chunk later */ ++ info_ptr->num_frames = 1; +#endif + } - /* Flags for the transformations the PNG library does on the image data */ - #define PNG_BGR 0x0001 -@@ -754,6 +758,16 @@ - #define png_tRNS PNG_U32(116, 82, 78, 83) - #define png_zTXt PNG_U32(122, 84, 88, 116) + #ifdef PNG_oFFs_SUPPORTED +@@ -1094,6 +1099,146 @@ + } + #endif /* sPLT */ +#ifdef PNG_APNG_SUPPORTED -+#define png_acTL PNG_U32( 97, 99, 84, 76) -+#define png_fcTL PNG_U32(102, 99, 84, 76) -+#define png_fdAT PNG_U32(102, 100, 65, 84) ++png_uint_32 PNGAPI ++png_set_acTL(png_structp png_ptr, png_infop info_ptr, ++ png_uint_32 num_frames, png_uint_32 num_plays) ++{ ++ png_debug1(1, "in %s storage function", "acTL"); + -+/* For png_struct.apng_flags: */ -+#define PNG_FIRST_FRAME_HIDDEN 0x0001 -+#define PNG_APNG_APP 0x0002 -+#endif ++ if (png_ptr == NULL || info_ptr == NULL) ++ { ++ png_warning(png_ptr, ++ "Call to png_set_acTL() with NULL png_ptr " ++ "or info_ptr ignored"); ++ return (0); ++ } ++ if (num_frames == 0) |