From 4a1ab9146510b156d41955e81e72ce492b4fed0f Mon Sep 17 00:00:00 2001 From: Silvan Calarco Date: Sat, 6 Jan 2024 05:25:10 +0100 Subject: [PATCH] remove libpng14.la [release 1.4.11-2mamba;Sun Aug 19 2012] --- README.md | 2 + libpng-1.2.8-link_to_proper_libs.patch | 49 + libpng-1.4.11-apng.patch | 1727 ++++++++++++++++++++++++ libpng14.spec | 192 +++ 4 files changed, 1970 insertions(+) create mode 100644 libpng-1.2.8-link_to_proper_libs.patch create mode 100644 libpng-1.4.11-apng.patch create mode 100644 libpng14.spec diff --git a/README.md b/README.md index edf2816..b748a45 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,4 @@ # libpng14 +This package contains the library needed to run programs dynamically linked with libpng. + diff --git a/libpng-1.2.8-link_to_proper_libs.patch b/libpng-1.2.8-link_to_proper_libs.patch new file mode 100644 index 0000000..090b0b1 --- /dev/null +++ b/libpng-1.2.8-link_to_proper_libs.patch @@ -0,0 +1,49 @@ +diff -ur libpng-1.2.8/scripts/libpng.pc.in libpng-1.2.8-fix/scripts/libpng.pc.in +--- libpng-1.2.8/scripts/libpng.pc.in 2004-12-03 00:14:31.000000000 +0000 ++++ libpng-1.2.8-fix/scripts/libpng.pc.in 2005-02-16 07:57:32.000000000 +0000 +@@ -7,5 +7,5 @@ + Name: libpng12 + Description: Loads and saves PNG files + Version: 1.2.8 +-Libs: -L${libdir} -lpng12 -lz -lm ++Libs: -L${libdir} -lpng12 + Cflags: -I${includedir}/libpng12 +diff -ur libpng-1.2.8/scripts/makefile.linux libpng-1.2.8-fix/scripts/makefile.linux +--- libpng-1.2.8/scripts/makefile.linux 2005-02-16 07:56:58.000000000 +0000 ++++ libpng-1.2.8-fix/scripts/makefile.linux 2005-02-16 08:00:21.000000000 +0000 +@@ -32,8 +32,9 @@ + CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \ + $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5 + +-LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm +-LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm ++LIBS=-lz -lm ++LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 ++LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a $(LIBS) + + RANLIB=ranlib + #RANLIB=echo +@@ -81,7 +82,7 @@ + echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \ + echo L_opts=\"-L$(LIBPATH)\"; \ + echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \ +- echo libs=\"-lpng12 -lz -lm\"; \ ++ echo libs=\"-lpng12\"; \ + cat scripts/libpng-config-body.in ) > libpng-config + chmod +x libpng-config + +@@ -94,12 +95,12 @@ + $(LIBNAME).so.$(PNGVER): $(OBJSDLL) + $(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \ + -o $(LIBNAME).so.$(PNGVER) \ +- $(OBJSDLL) ++ $(OBJSDLL) $(LIBS) + + libpng.so.3.$(PNGMIN): $(OBJSDLL) + $(CC) -shared -Wl,-soname,libpng.so.3 \ + -o libpng.so.3.$(PNGMIN) \ +- $(OBJSDLL) ++ $(OBJSDLL) $(LIBS) + + pngtest: pngtest.o $(LIBNAME).so + $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS) diff --git a/libpng-1.4.11-apng.patch b/libpng-1.4.11-apng.patch new file mode 100644 index 0000000..d93046d --- /dev/null +++ b/libpng-1.4.11-apng.patch @@ -0,0 +1,1727 @@ +diff -Naru libpng-1.4.11.org/png.h libpng-1.4.11/png.h +--- libpng-1.4.11.org/png.h 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/png.h 2012-03-30 16:47:49.000000000 +0900 +@@ -918,6 +918,19 @@ + png_fixed_point int_y_blue PNG_DEPSTRUCT; + #endif + ++#ifdef PNG_APNG_SUPPORTED ++ png_uint_32 num_frames PNG_DEPSTRUCT; /* including default image */ ++ png_uint_32 num_plays PNG_DEPSTRUCT; ++ png_uint_32 next_frame_width PNG_DEPSTRUCT; ++ png_uint_32 next_frame_height PNG_DEPSTRUCT; ++ png_uint_32 next_frame_x_offset PNG_DEPSTRUCT; ++ png_uint_32 next_frame_y_offset PNG_DEPSTRUCT; ++ png_uint_16 next_frame_delay_num PNG_DEPSTRUCT; ++ png_uint_16 next_frame_delay_den PNG_DEPSTRUCT; ++ png_byte next_frame_dispose_op PNG_DEPSTRUCT; ++ png_byte next_frame_blend_op PNG_DEPSTRUCT; ++#endif ++ + } png_info; + + typedef png_info FAR * png_infop; +@@ -1016,6 +1029,10 @@ + #define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */ + #define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ + #define PNG_INFO_IDAT 0x8000L /* ESR, 1.0.6 */ ++#ifdef PNG_APNG_SUPPORTED ++#define PNG_INFO_acTL 0x10000L ++#define PNG_INFO_fcTL 0x20000L ++#endif + + /* This is used for the transformation routines, as some of them + * change these values for the row. It also should enable using +@@ -1058,6 +1075,10 @@ + typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop)); + typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep, + png_uint_32, int)); ++#ifdef PNG_APNG_SUPPORTED ++typedef void (PNGAPI *png_progressive_frame_ptr) PNGARG((png_structp, ++ png_uint_32)); ++#endif + #endif + + #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ +@@ -1477,6 +1498,36 @@ + png_uint_32 user_chunk_cache_max PNG_DEPSTRUCT; + #endif + ++#ifdef PNG_APNG_SUPPORTED ++ png_uint_32 apng_flags PNG_DEPSTRUCT; ++ png_uint_32 next_seq_num PNG_DEPSTRUCT; /* next fcTL/fdAT chunk sequence number */ ++ png_uint_32 first_frame_width PNG_DEPSTRUCT; ++ png_uint_32 first_frame_height PNG_DEPSTRUCT; ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_uint_32 num_frames_read PNG_DEPSTRUCT; /* incremented after all image data of */ ++ /* a frame is read */ ++#ifdef PNG_PROGRESSIVE_READ_SUPPORTED ++ png_progressive_frame_ptr frame_info_fn PNG_DEPSTRUCT; /* frame info read callback */ ++ png_progressive_frame_ptr frame_end_fn PNG_DEPSTRUCT; /* frame data read callback */ ++#endif ++#endif ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ png_uint_32 num_frames_to_write PNG_DEPSTRUCT; ++ png_uint_32 num_frames_written PNG_DEPSTRUCT; ++#endif ++ ++/* 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 */ ++ + /* New member added in libpng-1.0.25 and 1.2.17 */ + #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED + /* Storage for unknown chunk that the library doesn't recognize. */ +@@ -1814,6 +1865,18 @@ + PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, + png_bytepp image)); + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++extern PNG_EXPORT (void,png_write_frame_head) PNGARG((png_structp png_ptr, ++ png_infop png_info, 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)); ++ ++extern PNG_EXPORT (void,png_write_frame_tail) PNGARG((png_structp png_ptr, ++ png_infop png_info)); ++#endif ++ + /* Write the end of the PNG file. */ + PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, + png_infop info_ptr)); +@@ -2058,6 +2121,11 @@ + png_voidp progressive_ptr, + png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, + png_progressive_end_ptr end_fn)); ++#ifdef PNG_READ_APNG_SUPPORTED ++extern PNG_EXPORT(void,png_set_progressive_frame_fn) PNGARG((png_structp png_ptr, ++ png_progressive_frame_ptr frame_info_fn, ++ png_progressive_frame_ptr frame_end_fn)); ++#endif + + /* Returns the user pointer associated with the push read functions */ + PNG_EXPORT(png_voidp,png_get_progressive_ptr) +@@ -2484,6 +2552,53 @@ + #endif + #endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ + ++#ifdef PNG_APNG_SUPPORTED ++extern PNG_EXPORT(png_uint_32,png_get_acTL) PNGARG((png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 *num_frames, png_uint_32 *num_plays)); ++extern PNG_EXPORT(png_uint_32,png_set_acTL) PNGARG((png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 num_frames, png_uint_32 num_plays)); ++extern PNG_EXPORT(png_uint_32,png_get_num_frames) PNGARG((png_structp png_ptr, ++ png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_32,png_get_num_plays) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++ ++extern PNG_EXPORT(png_uint_32,png_get_next_frame_fcTL) ++ PNGARG((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)); ++extern PNG_EXPORT(png_uint_32,png_set_next_frame_fcTL) ++ PNGARG((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)); ++extern PNG_EXPORT(png_uint_32,png_get_next_frame_width) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_32,png_get_next_frame_height) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_32,png_get_next_frame_x_offset) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_32,png_get_next_frame_y_offset) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_16,png_get_next_frame_delay_num) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_16,png_get_next_frame_delay_den) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_byte,png_get_next_frame_dispose_op) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_byte,png_get_next_frame_blend_op) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_byte,png_get_first_frame_is_hidden) ++ PNGARG((png_structp png_ptr, png_infop info_ptr)); ++extern PNG_EXPORT(png_uint_32,png_set_first_frame_is_hidden) ++ PNGARG((png_structp png_ptr, png_infop info_ptr, png_byte is_hidden)); ++#endif /* PNG_APNG_SUPPORTED */ ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++extern PNG_EXPORT(void,png_read_frame_head) PNGARG((png_structp png_ptr, ++ png_infop info_ptr)); ++#endif ++ + #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + /* Provide a list of chunks and how they are to be handled, if the built-in + handling or default unknown chunk handling is not desired. Any chunks not +diff -Naru libpng-1.4.11.org/pngconf.h libpng-1.4.11/pngconf.h +--- libpng-1.4.11.org/pngconf.h 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngconf.h 2012-03-30 16:47:49.000000000 +0900 +@@ -906,6 +906,10 @@ + # define PNG_READ_tRNS_SUPPORTED + # define PNG_tRNS_SUPPORTED + #endif ++#ifndef PNG_NO_READ_APNG ++# define PNG_READ_APNG_SUPPORTED ++# define PNG_APNG_SUPPORTED ++#endif + #ifndef PNG_NO_READ_zTXt + # define PNG_READ_zTXt_SUPPORTED + # define PNG_zTXt_SUPPORTED +@@ -1065,6 +1069,14 @@ + # define PNG_TEXT_SUPPORTED + # endif + #endif ++#ifndef PNG_NO_WRITE_APNG ++# ifndef PNG_WRITE_APNG_SUPPORTED ++# define PNG_WRITE_APNG_SUPPORTED ++# endif ++# ifndef PNG_APNG_SUPPORTED ++# define PNG_APNG_SUPPORTED ++# endif ++#endif + + #ifdef PNG_WRITE_tIME_SUPPORTED + # ifndef PNG_NO_CONVERT_tIME +diff -Naru libpng-1.4.11.org/pngget.c libpng-1.4.11/pngget.c +--- libpng-1.4.11.org/pngget.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngget.c 2012-03-30 16:47:49.000000000 +0900 +@@ -848,6 +848,167 @@ + } + #endif + ++#ifdef PNG_APNG_SUPPORTED ++png_uint_32 PNGAPI ++png_get_acTL(png_structp png_ptr, png_infop info_ptr, ++ png_uint_32 *num_frames, png_uint_32 *num_plays) ++{ ++ png_debug1(1, "in %s retrieval function", "acTL"); ++ ++ if (png_ptr != NULL && info_ptr != NULL && ++ (info_ptr->valid & PNG_INFO_acTL) && ++ num_frames != NULL && num_plays != NULL) ++ { ++ *num_frames = info_ptr->num_frames; ++ *num_plays = info_ptr->num_plays; ++ return (1); ++ } ++ ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++png_get_num_frames(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_num_frames()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->num_frames); ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++png_get_num_plays(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_num_plays()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->num_plays); ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++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_debug1(1, "in %s retrieval function", "fcTL"); ++ ++ if (png_ptr != NULL && info_ptr != NULL && ++ (info_ptr->valid & PNG_INFO_fcTL) && ++ width != NULL && height != NULL && ++ x_offset != NULL && x_offset != NULL && ++ delay_num != NULL && delay_den != NULL && ++ dispose_op != NULL && blend_op != NULL) ++ { ++ *width = info_ptr->next_frame_width; ++ *height = info_ptr->next_frame_height; ++ *x_offset = info_ptr->next_frame_x_offset; ++ *y_offset = info_ptr->next_frame_y_offset; ++ *delay_num = info_ptr->next_frame_delay_num; ++ *delay_den = info_ptr->next_frame_delay_den; ++ *dispose_op = info_ptr->next_frame_dispose_op; ++ *blend_op = info_ptr->next_frame_blend_op; ++ return (1); ++ } ++ ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++png_get_next_frame_width(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_width()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_width); ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++png_get_next_frame_height(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_height()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_height); ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++png_get_next_frame_x_offset(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_x_offset()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_x_offset); ++ return (0); ++} ++ ++png_uint_32 PNGAPI ++png_get_next_frame_y_offset(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_y_offset()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_y_offset); ++ return (0); ++} ++ ++png_uint_16 PNGAPI ++png_get_next_frame_delay_num(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_delay_num()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_delay_num); ++ return (0); ++} ++ ++png_uint_16 PNGAPI ++png_get_next_frame_delay_den(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_delay_den()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_delay_den); ++ return (0); ++} ++ ++png_byte PNGAPI ++png_get_next_frame_dispose_op(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_dispose_op()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_dispose_op); ++ return (0); ++} ++ ++png_byte PNGAPI ++png_get_next_frame_blend_op(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_get_next_frame_blend_op()"); ++ ++ if (png_ptr != NULL && info_ptr != NULL) ++ return (info_ptr->next_frame_blend_op); ++ return (0); ++} ++ ++png_byte PNGAPI ++png_get_first_frame_is_hidden(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_debug(1, "in png_first_frame_is_hidden()"); ++ ++ if (png_ptr != NULL) ++ return (png_byte)(png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN); ++ ++ return 0; ++} ++#endif /* PNG_APNG_SUPPORTED */ ++ + #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED + png_uint_32 PNGAPI + png_get_unknown_chunks(png_const_structp png_ptr, png_const_infop info_ptr, +diff -Naru libpng-1.4.11.org/pngpread.c libpng-1.4.11/pngpread.c +--- libpng-1.4.11.org/pngpread.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngpread.c 2012-03-30 16:47:49.000000000 +0900 +@@ -181,6 +181,11 @@ + #ifdef PNG_READ_zTXt_SUPPORTED + PNG_zTXt; + #endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ PNG_acTL; ++ PNG_fcTL; ++ PNG_fdAT; ++#endif + + /* First we make sure we have enough data for the 4 byte chunk name + * and the 4 byte chunk length before proceeding with decoding the +@@ -206,6 +211,103 @@ + png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; + } + ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_ptr->num_frames_read > 0 && ++ png_ptr->num_frames_read < info_ptr->num_frames) ++ { ++ if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) ++ { ++ /* Discard trailing IDATs for the first frame */ ++ if (png_ptr->mode & PNG_HAVE_fcTL || 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_crc_skip(png_ptr, png_ptr->push_length); ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ return; ++ } ++ else if (!png_memcmp(png_ptr->chunk_name, png_fdAT, 4)) ++ { ++ if (png_ptr->buffer_size < 4) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ png_ensure_sequence_number(png_ptr, 4); ++ ++ if (!(png_ptr->mode & PNG_HAVE_fcTL)) ++ { ++ /* 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_crc_skip(png_ptr, png_ptr->push_length); ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ return; ++ } ++ else ++ { ++ /* frame data follows */ ++ 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(!png_memcmp(png_ptr->chunk_name, png_fcTL, 4)) ++ { ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ ++ 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)) ++ png_error(png_ptr, "missing required fcTL chunk"); ++ ++ png_read_reinit(png_ptr, info_ptr); ++ png_progressive_read_reset(png_ptr); ++ ++ if (png_ptr->frame_info_fn != NULL) ++ (*(png_ptr->frame_info_fn))(png_ptr, png_ptr->num_frames_read); ++ ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ ++ return; ++ } ++ else ++ { ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ png_warning(png_ptr, "Skipped (ignored) a chunk " ++ "between APNG chunks"); ++ png_push_crc_skip(png_ptr, png_ptr->push_length); ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ return; ++ } ++ ++ return; ++ } ++#endif /* PNG_READ_APNG_SUPPORTED */ ++ + if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) + if (png_ptr->mode & PNG_AFTER_IDAT) + png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT; +@@ -301,6 +403,9 @@ + png_benign_error(png_ptr, "Too many IDATs found"); + } + ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_have_info(png_ptr, info_ptr); ++#endif + png_ptr->idat_size = png_ptr->push_length; + png_ptr->mode |= PNG_HAVE_IDAT; + png_ptr->process_mode = PNG_READ_IDAT_MODE; +@@ -533,6 +638,38 @@ + } + + #endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ else if (!png_memcmp(png_ptr->chunk_name, png_acTL, 4)) ++ { ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ ++ png_handle_acTL(png_ptr, info_ptr, png_ptr->push_length); ++ } ++ else if (!png_memcmp(png_ptr->chunk_name, png_fcTL, 4)) ++ { ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ ++ png_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length); ++ } ++ else if (!png_memcmp(png_ptr->chunk_name, png_fdAT, 4)) ++ { ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ ++ png_handle_fdAT(png_ptr, info_ptr, png_ptr->push_length); ++ } ++#endif /* PNG_READ_APNG_SUPPORTED */ + else + { + if (png_ptr->push_length + 4 > png_ptr->buffer_size) +@@ -712,11 +849,15 @@ + png_push_read_IDAT(png_structp png_ptr) + { + PNG_IDAT; ++#ifdef PNG_READ_APNG_SUPPORTED ++ PNG_fdAT; ++ PNG_IEND; ++#endif + if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) + { + png_byte chunk_length[4]; + +- if (png_ptr->buffer_size < 8) ++ if (png_ptr->buffer_size < 12) + { + png_push_save_buffer(png_ptr); + return; +@@ -728,15 +869,62 @@ + png_crc_read(png_ptr, png_ptr->chunk_name, 4); + png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; + +- if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_memcmp(png_ptr->chunk_name, (png_bytep)png_fdAT, 4) ++ && png_ptr->num_frames_read > 0) ++ { ++ if (png_ptr->flags & PNG_FLAG_ZLIB_FINISHED) ++ { ++ png_ptr->process_mode = PNG_READ_CHUNK_MODE; ++ if (png_ptr->frame_end_fn != NULL) ++ (*(png_ptr->frame_end_fn))(png_ptr, png_ptr->num_frames_read); ++ png_ptr->num_frames_read++; ++ return; ++ } ++ else ++ { ++ if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) ++ 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_warning(png_ptr, "Skipping (ignoring) a chunk between " ++ "APNG chunks"); ++ png_crc_finish(png_ptr, png_ptr->push_length); ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ return; ++ } ++ } ++ else ++#endif ++ if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4) ++#ifdef PNG_READ_APNG_SUPPORTED ++ && (png_ptr->num_frames_read == 0) ++#endif ++ ) + { + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) + png_error(png_ptr, "Not enough compressed data"); ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_ptr->frame_end_fn != NULL) ++ (*(png_ptr->frame_end_fn))(png_ptr, png_ptr->num_frames_read); ++ png_ptr->num_frames_read++; ++#endif + return; + } + + png_ptr->idat_size = png_ptr->push_length; ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_ptr->num_frames_read > 0) ++ { ++ png_ensure_sequence_number(png_ptr, 4); ++ png_ptr->idat_size -= 4; ++ } ++#endif + } + if (png_ptr->idat_size && png_ptr->save_buffer_size) + { +@@ -1223,6 +1411,17 @@ + png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer); + } + ++#ifdef PNG_READ_APNG_SUPPORTED ++void PNGAPI ++png_set_progressive_frame_fn(png_structp png_ptr, ++ png_progressive_frame_ptr frame_info_fn, ++ png_progressive_frame_ptr frame_end_fn) ++{ ++ png_ptr->frame_info_fn = frame_info_fn; ++ png_ptr->frame_end_fn = frame_end_fn; ++} ++#endif ++ + png_voidp PNGAPI + png_get_progressive_ptr(png_const_structp png_ptr) + { +diff -Naru libpng-1.4.11.org/pngpriv.h libpng-1.4.11/pngpriv.h +--- libpng-1.4.11.org/pngpriv.h 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngpriv.h 2012-03-30 16:47:49.000000000 +0900 +@@ -105,6 +105,10 @@ + #define PNG_BACKGROUND_IS_GRAY 0x800 + #define PNG_HAVE_PNG_SIGNATURE 0x1000 + #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ ++#ifdef PNG_APNG_SUPPORTED ++#define PNG_HAVE_acTL 0x4000 ++#define PNG_HAVE_fcTL 0x8000L ++#endif + + /* Flags for the transformations the PNG library does on the image data */ + #define PNG_BGR 0x0001 +@@ -238,6 +242,14 @@ + #define PNG_tIME PNG_CONST png_byte png_tIME[5] = {116, 73, 77, 69, '\0'} + #define PNG_tRNS PNG_CONST png_byte png_tRNS[5] = {116, 82, 78, 83, '\0'} + #define PNG_zTXt PNG_CONST png_byte png_zTXt[5] = {122, 84, 88, 116, '\0'} ++#ifdef PNG_APNG_SUPPORTED ++#define PNG_acTL PNG_CONST png_byte png_acTL[5] = { 97, 99, 84, 76, '\0'} ++#define PNG_fcTL PNG_CONST png_byte png_fcTL[5] = {102, 99, 84, 76, '\0'} ++#define PNG_fdAT PNG_CONST png_byte png_fdAT[5] = {102, 100, 65, 84, '\0'} ++ ++/* For png_struct.apng_flags: */ ++#define PNG_FIRST_FRAME_HIDDEN 0x0001 ++#endif + + + /* Inhibit C++ name-mangling for libpng functions but not for system calls. */ +@@ -478,6 +490,17 @@ + #endif + #endif + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++PNG_EXTERN void png_write_acTL PNGARG((png_structp png_ptr, ++ png_uint_32 num_frames, png_uint_32 num_plays)); ++ ++PNG_EXTERN void png_write_fcTL PNGARG((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)); ++#endif ++ + /* Called when finished processing a row of data */ + PNG_EXTERN void png_write_finish_row PNGARG((png_structp png_ptr)); + +@@ -530,6 +553,20 @@ + PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, + png_infop info_ptr)); + ++#ifdef PNG_READ_APNG_SUPPORTED ++/* Private, reset some things to become ready for reading next frame */ ++PNG_EXTERN void png_read_reset PNGARG((png_structp png_ptr)); ++PNG_EXTERN void png_read_reinit PNGARG((png_structp png_ptr, ++ png_infop info_ptr)); ++PNG_EXTERN void png_progressive_read_reset PNGARG((png_structp png_ptr)); ++#endif ++#ifdef PNG_WRITE_APNG_SUPPORTED ++/* Private, reset some things to become ready for writing next frame */ ++PNG_EXTERN void png_write_reset PNGARG((png_structp png_ptr)); ++PNG_EXTERN void png_write_reinit PNGARG((png_structp png_ptr, ++ png_infop info_ptr, png_uint_32 width, png_uint_32 height)); ++#endif ++ + /* These are the functions that do the transformations */ + #ifdef PNG_READ_FILLER_SUPPORTED + PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, +@@ -746,6 +783,23 @@ + png_uint_32 length)); + #endif + ++#ifdef PNG_READ_APNG_SUPPORTED ++PNG_EXTERN void png_handle_acTL PNGARG((png_structp png_ptr, png_infop info_ptr, ++ png_uint_32 length)); ++PNG_EXTERN void png_handle_fcTL PNGARG((png_structp png_ptr, png_infop info_ptr, ++ png_uint_32 length)); ++PNG_EXTERN void png_have_info PNGARG((png_structp png_ptr, png_infop info_ptr)); ++PNG_EXTERN void png_handle_fdAT PNGARG((png_structp png_ptr, png_infop info_ptr, ++ png_uint_32 length)); ++PNG_EXTERN void png_ensure_sequence_number PNGARG((png_structp png_ptr, ++ png_uint_32 length)); ++PNG_EXTERN void png_ensure_fcTL_is_valid PNGARG((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)); ++#endif ++ + PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr, + png_infop info_ptr, png_uint_32 length)); + +diff -Naru libpng-1.4.11.org/pngread.c libpng-1.4.11/pngread.c +--- libpng-1.4.11.org/pngread.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngread.c 2012-03-30 16:47:49.000000000 +0900 +@@ -276,6 +276,11 @@ + #ifdef PNG_READ_zTXt_SUPPORTED + PNG_zTXt; + #endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ PNG_acTL; ++ PNG_fcTL; ++ PNG_fdAT; ++#endif + png_uint_32 length = png_read_chunk_header(png_ptr); + PNG_CONST png_bytep chunk_name = png_ptr->chunk_name; + +@@ -319,6 +324,9 @@ + !(png_ptr->mode & PNG_HAVE_PLTE)) + png_error(png_ptr, "Missing PLTE before IDAT"); + ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_have_info(png_ptr, info_ptr); ++#endif + png_ptr->idat_size = length; + png_ptr->mode |= PNG_HAVE_IDAT; + break; +@@ -391,12 +399,95 @@ + else if (!png_memcmp(chunk_name, png_iTXt, 4)) + png_handle_iTXt(png_ptr, info_ptr, length); + #endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ else if (!png_memcmp(chunk_name, png_acTL, 4)) ++ png_handle_acTL(png_ptr, info_ptr, length); ++ else if (!png_memcmp(chunk_name, png_fcTL, 4)) ++ png_handle_fcTL(png_ptr, info_ptr, length); ++ else if (!png_memcmp(chunk_name, png_fdAT, 4)) ++ png_handle_fdAT(png_ptr, info_ptr, length); ++#endif + else + png_handle_unknown(png_ptr, info_ptr, length); + } + } + #endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ + ++#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_debug(0, "Reading frame head"); ++ ++ if (!(png_ptr->mode & PNG_HAVE_acTL)) ++ png_error(png_ptr, "attempt to png_read_frame_head() but " ++ "no acTL present"); ++ ++ /* do nothing for the main IDAT */ ++ if (png_ptr->num_frames_read == 0) ++ return; ++ ++ png_crc_finish(png_ptr, 0); /* CRC from last IDAT or fdAT chunk */ ++ ++ png_read_reset(png_ptr); ++ png_ptr->mode &= ~PNG_HAVE_fcTL; ++ ++ have_chunk_after_DAT = 0; ++ for (;;) ++ { ++ PNG_IDAT; ++ PNG_fdAT; ++ PNG_fcTL; ++ png_byte chunk_length[4]; ++ png_uint_32 length; ++ ++ png_read_data(png_ptr, chunk_length, 4); ++ length = png_get_uint_31(png_ptr, chunk_length); ++ ++ png_reset_crc(png_ptr); ++ png_crc_read(png_ptr, png_ptr->chunk_name, 4); ++ ++ if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) ++ { ++ /* discard trailing IDATs for the first frame */ ++ if (have_chunk_after_DAT || png_ptr->num_frames_read > 1) ++ png_error(png_ptr, "png_read_frame_head(): out of place IDAT"); ++ png_crc_finish(png_ptr, length); ++ } ++ else if (!png_memcmp(png_ptr->chunk_name, png_fcTL, 4)) ++ { ++ png_handle_fcTL(png_ptr, info_ptr, length); ++ have_chunk_after_DAT = 1; ++ } ++ else if (!png_memcmp(png_ptr->chunk_name, png_fdAT, 4)) ++ { ++ png_ensure_sequence_number(png_ptr, length); ++ ++ /* discard trailing fdATs for frames other than the first */ ++ if (!have_chunk_after_DAT && 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 /* PNG_READ_APNG_SUPPORTED */ ++ + /* Optional call to update the users info_ptr structure */ + void PNGAPI + png_read_update_info(png_structp png_ptr, png_infop info_ptr) +@@ -437,6 +528,10 @@ + png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row) + { + PNG_IDAT; ++#ifdef PNG_READ_APNG_SUPPORTED ++ PNG_fdAT; ++ PNG_IEND; ++#endif + #ifdef PNG_READ_INTERLACING_SUPPORTED + PNG_CONST int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, + 0xff}; +@@ -581,13 +676,39 @@ + { + if (!(png_ptr->zstream.avail_in)) + { +- while (!png_ptr->idat_size) ++ png_uint_32 bytes_to_skip = 0; ++ ++ while (!png_ptr->idat_size || bytes_to_skip != 0) + { +- png_crc_finish(png_ptr, 0); +- ++ png_crc_finish(png_ptr, bytes_to_skip); ++ bytes_to_skip = 0; ++ + png_ptr->idat_size = png_read_chunk_header(png_ptr); +- if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) +- png_error(png_ptr, "Not enough image data"); ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_ptr->num_frames_read == 0) ++ { ++#endif ++ if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) ++ png_error(png_ptr, "Not enough image data"); ++#ifdef PNG_READ_APNG_SUPPORTED ++ } ++ else ++ { ++ if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) ++ png_error(png_ptr, "Not enough image data"); ++ if (png_memcmp(png_ptr->chunk_name, png_fdAT, 4)) ++ { ++ png_warning(png_ptr, "Skipped (ignored) a chunk " ++ "between APNG chunks"); ++ bytes_to_skip = png_ptr->idat_size; ++ continue; ++ } ++ ++ png_ensure_sequence_number(png_ptr, png_ptr->idat_size); ++ ++ png_ptr->idat_size -= 4; ++ } ++#endif + } + png_ptr->zstream.avail_in = (uInt)png_ptr->zbuf_size; + png_ptr->zstream.next_in = png_ptr->zbuf; +@@ -605,6 +726,9 @@ + png_benign_error(png_ptr, "Extra compressed data"); + png_ptr->mode |= PNG_AFTER_IDAT; + png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_ptr->num_frames_read++; ++#endif + break; + } + if (ret != Z_OK) +@@ -860,6 +984,11 @@ + #ifdef PNG_READ_zTXt_SUPPORTED + PNG_zTXt; + #endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ PNG_acTL; ++ PNG_fcTL; ++ PNG_fdAT; ++#endif + png_uint_32 length = png_read_chunk_header(png_ptr); + PNG_CONST png_bytep chunk_name = png_ptr->chunk_name; + +@@ -959,6 +1088,14 @@ + else if (!png_memcmp(chunk_name, png_iTXt, 4)) + png_handle_iTXt(png_ptr, info_ptr, length); + #endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ else if (!png_memcmp(chunk_name, png_acTL, 4)) ++ png_handle_acTL(png_ptr, info_ptr, length); ++ else if (!png_memcmp(chunk_name, png_fcTL, 4)) ++ png_handle_fcTL(png_ptr, info_ptr, length); ++ else if (!png_memcmp(chunk_name, png_fdAT, 4)) ++ png_handle_fdAT(png_ptr, info_ptr, length); ++#endif + else + png_handle_unknown(png_ptr, info_ptr, length); + } while (!(png_ptr->mode & PNG_HAVE_IEND)); +diff -Naru libpng-1.4.11.org/pngrtran.c libpng-1.4.11/pngrtran.c +--- libpng-1.4.11.org/pngrtran.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngrtran.c 2012-03-30 16:47:49.000000000 +0900 +@@ -1359,7 +1359,7 @@ + * pixels. This check added to libpng-1.2.19 + */ + #if (PNG_WARN_UNINITIALIZED_ROW==1) +- png_error(png_ptr, "Uninitialized row"); ++ png_warning(png_ptr, "Uninitialized row"); + #else + png_warning(png_ptr, "Uninitialized row"); + #endif +diff -Naru libpng-1.4.11.org/pngrutil.c libpng-1.4.11/pngrutil.c +--- libpng-1.4.11.org/pngrutil.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngrutil.c 2012-03-30 16:47:49.000000000 +0900 +@@ -496,6 +496,11 @@ + filter_type = buf[11]; + interlace_type = buf[12]; + ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_ptr->first_frame_width = width; ++ png_ptr->first_frame_height = height; ++#endif ++ + /* Set internal variables */ + png_ptr->width = width; + png_ptr->height = height; +@@ -2398,6 +2403,172 @@ + } + #endif + ++#ifdef PNG_READ_APNG_SUPPORTED ++void /* PRIVATE */ ++png_handle_acTL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) ++{ ++ png_byte data[8]; ++ png_uint_32 num_frames; ++ png_uint_32 num_plays; ++ png_uint_32 didSet; ++ ++ png_debug(1, "in png_handle_acTL"); ++ ++ if (!(png_ptr->mode & PNG_HAVE_IHDR)) ++ { ++ png_error(png_ptr, "Missing IHDR before acTL"); ++ } ++ else if (png_ptr->mode & PNG_HAVE_IDAT) ++ { ++ png_warning(png_ptr, "Invalid acTL after IDAT skipped"); ++ png_crc_finish(png_ptr, length); ++ return; ++ } ++ else if (png_ptr->mode & PNG_HAVE_acTL) ++ { ++ png_warning(png_ptr, "Duplicate acTL skipped"); ++ png_crc_finish(png_ptr, length); ++ return; ++ } ++ else if (length != 8) ++ { ++ png_warning(png_ptr, "acTL with invalid length skipped"); ++ png_crc_finish(png_ptr, length); ++ return; ++ } ++ ++ png_crc_read(png_ptr, data, 8); ++ png_crc_finish(png_ptr, 0); ++ ++ num_frames = png_get_uint_31(png_ptr, data); ++ num_plays = png_get_uint_31(png_ptr, data + 4); ++ ++ /* the set function will do error checking on num_frames */ ++ didSet = png_set_acTL(png_ptr, info_ptr, num_frames, num_plays); ++ if(didSet) ++ png_ptr->mode |= PNG_HAVE_acTL; ++} ++ ++void /* PRIVATE */ ++png_handle_fcTL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) ++{ ++ png_byte data[22]; ++ 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_handle_fcTL"); ++ ++ png_ensure_sequence_number(png_ptr, length); ++ ++ if (!(png_ptr->mode & PNG_HAVE_IHDR)) ++ { ++ png_error(png_ptr, "Missing IHDR before fcTL"); ++ } ++ else if (png_ptr->mode & PNG_HAVE_IDAT) ++ { ++ /* for any frames other then the first this message may be misleading, ++ * but correct. PNG_HAVE_IDAT is unset before the frame head is read ++ * i can't think of a better message */ ++ png_warning(png_ptr, "Invalid fcTL after IDAT skipped"); ++ png_crc_finish(png_ptr, length-4); ++ return; ++ } ++ else if (png_ptr->mode & PNG_HAVE_fcTL) ++ { ++ png_warning(png_ptr, "Duplicate fcTL within one frame skipped"); ++ png_crc_finish(png_ptr, length-4); ++ return; ++ } ++ else if (length != 26) ++ { ++ png_warning(png_ptr, "fcTL with invalid length skipped"); ++ png_crc_finish(png_ptr, length-4); ++ return; ++ } ++ ++ png_crc_read(png_ptr, data, 22); ++ png_crc_finish(png_ptr, 0); ++ ++ width = png_get_uint_31(png_ptr, data); ++ height = png_get_uint_31(png_ptr, data + 4); ++ x_offset = png_get_uint_31(png_ptr, data + 8); ++ y_offset = png_get_uint_31(png_ptr, data + 12); ++ delay_num = png_get_uint_16(data + 16); ++ delay_den = png_get_uint_16(data + 18); ++ dispose_op = data[20]; ++ blend_op = data[21]; ++ ++ if (png_ptr->num_frames_read == 0 && (x_offset != 0 || y_offset != 0)) ++ png_error(png_ptr, "fcTL for the first frame must have zero offset"); ++ ++ if (info_ptr != NULL) ++ { ++ if (png_ptr->num_frames_read == 0 && ++ (width != info_ptr->width || height != info_ptr->height)) ++ png_error(png_ptr, "size in first frame's fcTL must match " ++ "the size in IHDR"); ++ ++ /* the set function will do more error checking */ ++ png_set_next_frame_fcTL(png_ptr, info_ptr, width, height, ++ x_offset, y_offset, delay_num, delay_den, ++ dispose_op, blend_op); ++ ++ png_read_reinit(png_ptr, info_ptr); ++ } ++ ++ png_ptr->mode |= PNG_HAVE_fcTL; ++} ++ ++void /* PRIVATE */ ++png_have_info(png_structp png_ptr, png_infop info_ptr) ++{ ++ if((info_ptr->valid & PNG_INFO_acTL) && !(info_ptr->valid & PNG_INFO_fcTL)) ++ { ++ png_ptr->apng_flags |= PNG_FIRST_FRAME_HIDDEN; ++ info_ptr->num_frames++; ++ } ++} ++ ++void /* PRIVATE */ ++png_handle_fdAT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) ++{ ++ png_ensure_sequence_number(png_ptr, length); ++ ++ /* This function is only called from png_read_end(), png_read_info(), ++ * and png_push_read_chunk() which means that: ++ * - the user doesn't want to read this frame ++ * - or this is an out-of-place fdAT ++ * in either case it is safe to ignore the chunk with a warning */ ++ png_warning(png_ptr, "ignoring fdAT chunk"); ++ png_crc_finish(png_ptr, length - 4); ++} ++ ++void /* PRIVATE */ ++png_ensure_sequence_number(png_structp png_ptr, png_uint_32 length) ++{ ++ png_byte data[4]; ++ png_uint_32 sequence_number; ++ ++ if (length < 4) ++ png_error(png_ptr, "invalid fcTL or fdAT chunk found"); ++ ++ png_crc_read(png_ptr, data, 4); ++ sequence_number = png_get_uint_31(png_ptr, data); ++ ++ if (sequence_number != png_ptr->next_seq_num) ++ png_error(png_ptr, "fcTL or fdAT chunk with out-of-order sequence " ++ "number found"); ++ ++ png_ptr->next_seq_num++; ++} ++#endif /* PNG_READ_APNG_SUPPORTED */ ++ + /* This function is called when we haven't found a handler for a + chunk. If there isn't a problem with the chunk itself (ie bad + chunk name, CRC, or a critical chunk), the chunk is silently ignored +@@ -3427,4 +3598,75 @@ + + png_ptr->flags |= PNG_FLAG_ROW_INIT; + } ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++/* This function is to be called after the main IDAT set has been read and ++ * before a new IDAT is read. It resets some parts of png_ptr ++ * to make them usable by the read functions again */ ++void /* PRIVATE */ ++png_read_reset(png_structp png_ptr) ++{ ++ png_ptr->mode &= ~PNG_HAVE_IDAT; ++ png_ptr->mode &= ~PNG_AFTER_IDAT; ++ png_ptr->row_number = 0; ++ png_ptr->pass = 0; ++ png_ptr->flags &= ~PNG_FLAG_ROW_INIT; ++} ++ ++void /* PRIVATE */ ++png_read_reinit(png_structp png_ptr, png_infop info_ptr) ++{ ++ png_ptr->width = info_ptr->next_frame_width; ++ png_ptr->height = info_ptr->next_frame_height; ++ png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->width); ++ if (png_ptr->prev_row) ++ png_memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); ++} ++ ++/* same as png_read_reset() but for the progressive reader */ ++void /* PRIVATE */ ++png_progressive_read_reset(png_structp png_ptr) ++{ ++ /* start of interlace block */ ++ const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; ++ ++ /* offset to next interlace block */ ++ const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; ++ ++ /* start of interlace block in the y direction */ ++ const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; ++ ++ /* offset to next interlace block in the y direction */ ++ const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; ++ png_uint_32 row_bytes; ++ ++ if (png_ptr->interlaced) ++ { ++ if (!(png_ptr->transformations & PNG_INTERLACE)) ++ png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - ++ png_pass_ystart[0]) / png_pass_yinc[0]; ++ else ++ png_ptr->num_rows = png_ptr->height; ++ ++ png_ptr->iwidth = (png_ptr->width + ++ png_pass_inc[png_ptr->pass] - 1 - ++ png_pass_start[png_ptr->pass]) / ++ png_pass_inc[png_ptr->pass]; ++ } ++ else ++ { ++ png_ptr->num_rows = png_ptr->height; ++ png_ptr->iwidth = png_ptr->width; ++ } ++ ++ png_ptr->flags &= ~PNG_FLAG_ZLIB_FINISHED; ++ if (inflateReset(&(png_ptr->zstream)) != Z_OK) ++ png_error(png_ptr, "inflateReset failed"); ++ png_ptr->zstream.avail_in = 0; ++ png_ptr->zstream.next_in = 0; ++ png_ptr->zstream.next_out = png_ptr->row_buf; ++ png_ptr->zstream.avail_out = (uInt)PNG_ROWBYTES(png_ptr->pixel_depth, ++ png_ptr->iwidth) + 1; ++} ++#endif /* PNG_READ_APNG_SUPPORTED */ + #endif /* PNG_READ_SUPPORTED */ +diff -Naru libpng-1.4.11.org/pngset.c libpng-1.4.11/pngset.c +--- libpng-1.4.11.org/pngset.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngset.c 2012-03-30 16:47:49.000000000 +0900 +@@ -260,6 +260,11 @@ + info_ptr->rowbytes = 0; + else + info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width); ++ ++#ifdef PNG_APNG_SUPPORTED ++ /* for non-animated png. this may be overritten from an acTL chunk later */ ++ info_ptr->num_frames = 1; ++#endif + } + + #ifdef PNG_oFFs_SUPPORTED +@@ -948,6 +953,143 @@ + } + #endif /* PNG_sPLT_SUPPORTED */ + ++#ifdef PNG_APNG_SUPPORTED ++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"); ++ ++ 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) ++ { ++ png_warning(png_ptr, ++ "Ignoring attempt to set acTL with num_frames zero"); ++ return (0); ++ } ++ if (num_frames > PNG_UINT_31_MAX) ++ { ++ png_warning(png_ptr, ++ "Ignoring attempt to set acTL with num_frames > 2^31-1"); ++ return (0); ++ } ++ if (num_plays > PNG_UINT_31_MAX) ++ { ++ png_warning(png_ptr, ++ "Ignoring attempt to set acTL with num_plays " ++ "> 2^31-1"); ++ return (0); ++ } ++ ++ info_ptr->num_frames = num_frames; ++ info_ptr->num_plays = num_plays; ++ ++ info_ptr->valid |= PNG_INFO_acTL; ++ ++ return (1); ++} ++ ++/* delay_num and delay_den can hold any 16-bit values including zero */ ++png_uint_32 PNGAPI ++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_debug1(1, "in %s storage function", "fcTL"); ++ ++ if (png_ptr == NULL || info_ptr == NULL) ++ { ++ png_warning(png_ptr, ++ "Call to png_set_fcTL() with NULL png_ptr or info_ptr " ++ "ignored"); ++ return (0); ++ } ++ ++ png_ensure_fcTL_is_valid(png_ptr, width, height, x_offset, y_offset, ++ delay_num, delay_den, dispose_op, blend_op); ++ ++ if (blend_op == PNG_BLEND_OP_OVER) ++ { ++ if (!(png_ptr->color_type & PNG_COLOR_MASK_ALPHA) && ++ !(png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))) ++ { ++ png_warning(png_ptr, ++ "PNG_BLEND_OP_OVER is meaningless and wasteful " ++ "for opaque images, ignored"); ++ blend_op = PNG_BLEND_OP_SOURCE; ++ } ++ } ++ ++ info_ptr->next_frame_width = width; ++ info_ptr->next_frame_height = height; ++ info_ptr->next_frame_x_offset = x_offset; ++ info_ptr->next_frame_y_offset = y_offset; ++ info_ptr->next_frame_delay_num = delay_num; ++ info_ptr->next_frame_delay_den = delay_den; ++ info_ptr->next_frame_dispose_op = dispose_op; ++ info_ptr->next_frame_blend_op = blend_op; ++ ++ info_ptr->valid |= PNG_INFO_fcTL; ++ ++ return (1); ++} ++ ++void /* PRIVATE */ ++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) ++{ ++ if (width + x_offset > png_ptr->first_frame_width || ++ height + y_offset > png_ptr->first_frame_height) ++ png_error(png_ptr, "dimensions of a frame are greater than" ++ "the ones in IHDR"); ++ if (width > PNG_UINT_31_MAX) ++ png_error(png_ptr, "invalid width in fcTL (> 2^31-1)"); ++ if (height > PNG_UINT_31_MAX) ++ png_error(png_ptr, "invalid height in fcTL (> 2^31-1)"); ++ if (x_offset > PNG_UINT_31_MAX) ++ png_error(png_ptr, "invalid x_offset in fcTL (> 2^31-1)"); ++ if (y_offset > PNG_UINT_31_MAX) ++ png_error(png_ptr, "invalid y_offset in fcTL (> 2^31-1)"); ++ ++ if (dispose_op != PNG_DISPOSE_OP_NONE && ++ dispose_op != PNG_DISPOSE_OP_BACKGROUND && ++ dispose_op != PNG_DISPOSE_OP_PREVIOUS) ++ png_error(png_ptr, "invalid dispose_op in fcTL"); ++ ++ if (blend_op != PNG_BLEND_OP_SOURCE && ++ blend_op != PNG_BLEND_OP_OVER) ++ png_error(png_ptr, "invalid blend_op in fcTL"); ++} ++ ++png_uint_32 PNGAPI ++png_set_first_frame_is_hidden(png_structp png_ptr, png_infop info_ptr, ++ png_byte is_hidden) ++{ ++ png_debug(1, "in png_first_frame_is_hidden()"); ++ ++ if (png_ptr == NULL) ++ return 0; ++ ++ if(is_hidden) ++ png_ptr->apng_flags |= PNG_FIRST_FRAME_HIDDEN; ++ else ++ png_ptr->apng_flags &= ~PNG_FIRST_FRAME_HIDDEN; ++ ++ return 1; ++} ++#endif /* PNG_APNG_SUPPORTED */ ++ + #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED + void PNGAPI + png_set_unknown_chunks(png_structp png_ptr, +diff -Naru libpng-1.4.11.org/pngtest.c libpng-1.4.11/pngtest.c +--- libpng-1.4.11.org/pngtest.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngtest.c 2012-03-30 16:47:49.000000000 +0900 +@@ -739,6 +739,10 @@ + jmp_buf jmpbuf; + #endif + #endif ++#ifdef PNG_APNG_SUPPORTED ++ png_uint_32 num_frames; ++ png_uint_32 num_plays; ++#endif + + char inbuf[256], outbuf[256]; + +@@ -1149,6 +1153,20 @@ + } + } + #endif ++#ifdef PNG_APNG_SUPPORTED ++ if (png_get_valid(read_ptr, read_info_ptr, PNG_INFO_acTL)) ++ { ++ if (png_get_acTL(read_ptr, read_info_ptr, &num_frames, &num_plays)) ++ { ++ png_byte is_hidden; ++ pngtest_debug2("Handling acTL chunks (frames %ld, plays %ld)", ++ num_frames, num_plays); ++ png_set_acTL(write_ptr, write_info_ptr, num_frames, num_plays); ++ is_hidden = png_get_first_frame_is_hidden(read_ptr, read_info_ptr); ++ png_set_first_frame_is_hidden(write_ptr, write_info_ptr, is_hidden); ++ } ++ } ++#endif + #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + { + png_unknown_chunkp unknowns; +@@ -1236,6 +1254,89 @@ + t_misc += (t_stop - t_start); + t_start = t_stop; + #endif ++#ifdef PNG_APNG_SUPPORTED ++ if (png_get_valid(read_ptr, read_info_ptr, PNG_INFO_acTL)) ++ { ++ png_uint_32 frame; ++ for (frame = 0; frame < num_frames; frame++) ++ { ++ png_uint_32 frame_width; ++ png_uint_32 frame_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_frame_head(read_ptr, read_info_ptr); ++ if (png_get_valid(read_ptr, read_info_ptr, PNG_INFO_fcTL)) ++ { ++ png_get_next_frame_fcTL(read_ptr, read_info_ptr, ++ &frame_width, &frame_height, ++ &x_offset, &y_offset, ++ &delay_num, &delay_den, ++ &dispose_op, &blend_op); ++ } ++ else ++ { ++ frame_width = width; ++ frame_height = height; ++ x_offset = 0; ++ y_offset = 0; ++ delay_num = 1; ++ delay_den = 1; ++ dispose_op = PNG_DISPOSE_OP_NONE; ++ blend_op = PNG_BLEND_OP_SOURCE; ++ } ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ png_write_frame_head(write_ptr, write_info_ptr, (png_bytepp)&row_buf, ++ frame_width, frame_height, ++ x_offset, y_offset, ++ delay_num, delay_den, ++ dispose_op, blend_op); ++#endif ++ for (pass = 0; pass < num_pass; pass++) ++ { ++ pngtest_debug1("Writing row data for pass %d", pass); ++ for (y = 0; y < frame_height; y++) ++ { ++#ifndef SINGLE_ROWBUF_ALLOC ++ pngtest_debug2("Allocating row buffer (pass %d, y = %ld)...", pass, y); ++ row_buf = (png_bytep)png_malloc(read_ptr, ++ png_get_rowbytes(read_ptr, read_info_ptr)); ++ pngtest_debug2("0x%08lx (%ld bytes)", (unsigned long)row_buf, ++ png_get_rowbytes(read_ptr, read_info_ptr)); ++#endif /* !SINGLE_ROWBUF_ALLOC */ ++ png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1); ++ ++#ifdef PNG_WRITE_SUPPORTED ++#ifdef PNGTEST_TIMING ++ t_stop = (float)clock(); ++ t_decode += (t_stop - t_start); ++ t_start = t_stop; ++#endif ++ png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); ++#ifdef PNGTEST_TIMING ++ t_stop = (float)clock(); ++ t_encode += (t_stop - t_start); ++ t_start = t_stop; ++#endif ++#endif /* PNG_WRITE_SUPPORTED */ ++ ++#ifndef SINGLE_ROWBUF_ALLOC ++ pngtest_debug2("Freeing row buffer (pass %d, y = %ld)", pass, y); ++ png_free(read_ptr, row_buf); ++ row_buf = NULL; ++#endif /* !SINGLE_ROWBUF_ALLOC */ ++ } ++ } ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ png_write_frame_tail(write_ptr, write_info_ptr); ++#endif ++ } ++ } ++ else ++#endif + for (pass = 0; pass < num_pass; pass++) + { + pngtest_debug1("Writing row data for pass %d", pass); +diff -Naru libpng-1.4.11.org/pngwrite.c libpng-1.4.11/pngwrite.c +--- libpng-1.4.11.org/pngwrite.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngwrite.c 2012-03-30 16:47:49.000000000 +0900 +@@ -57,6 +57,10 @@ + /* The rest of these check to see if the valid field has the appropriate + * flag set, and if it does, writes the chunk. + */ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ if (info_ptr->valid & PNG_INFO_acTL) ++ png_write_acTL(png_ptr, info_ptr->num_frames, info_ptr->num_plays); ++#endif + #ifdef PNG_WRITE_gAMA_SUPPORTED + if (info_ptr->valid & PNG_INFO_gAMA) + { +@@ -320,6 +324,10 @@ + return; + if (!(png_ptr->mode & PNG_HAVE_IDAT)) + 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 + + /* See if user wants us to write information chunks */ + if (info_ptr != NULL) +@@ -1456,4 +1464,39 @@ + PNG_UNUSED(params) + } + #endif ++ ++#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)) ++ 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->num_frames_written == 0 && ++ (png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN) ) ) ++ png_write_fcTL(png_ptr, width, height, x_offset, y_offset, ++ delay_num, delay_den, dispose_op, blend_op); ++} ++ ++void PNGAPI ++png_write_frame_tail(png_structp png_ptr, png_infop png_info) ++{ ++ png_debug(1, "in png_write_frame_tail"); ++ ++ png_ptr->num_frames_written++; ++} ++#endif /* PNG_WRITE_APNG_SUPPORTED */ ++ + #endif /* PNG_WRITE_SUPPORTED */ +diff -Naru libpng-1.4.11.org/pngwutil.c libpng-1.4.11/pngwutil.c +--- libpng-1.4.11.org/pngwutil.c 2012-03-30 16:47:49.000000000 +0900 ++++ libpng-1.4.11/pngwutil.c 2012-03-30 16:47:49.000000000 +0900 +@@ -541,6 +541,11 @@ + /* Write the chunk */ + png_write_chunk(png_ptr, (png_bytep)png_IHDR, buf, (png_size_t)13); + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ png_ptr->first_frame_width = width; ++ png_ptr->first_frame_height = height; ++#endif ++ + /* Initialize zlib with PNG info */ + png_ptr->zstream.zalloc = png_zalloc; + png_ptr->zstream.zfree = png_zfree; +@@ -663,6 +668,9 @@ + png_write_IDAT(png_structp png_ptr, png_bytep data, png_size_t length) + { + PNG_IDAT; ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ PNG_fdAT; ++#endif + + png_debug(1, "in png_write_IDAT"); + +@@ -725,7 +733,28 @@ + "Invalid zlib compression method or flags in IDAT"); + } + +- png_write_chunk(png_ptr, (png_bytep)png_IDAT, data, length); ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ if(png_ptr->num_frames_written == 0) ++#endif ++ png_write_chunk(png_ptr, (png_bytep)png_IDAT, data, length); ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ else ++ { ++ png_byte buf[4]; ++ ++ png_write_chunk_start(png_ptr, (png_bytep)png_fdAT, 4 + length); ++ ++ png_save_uint_32(buf, png_ptr->next_seq_num); ++ png_write_chunk_data(png_ptr, buf, 4); ++ ++ png_write_chunk_data(png_ptr, data, length); ++ ++ png_write_chunk_end(png_ptr); ++ ++ png_ptr->next_seq_num++; ++ } ++#endif ++ + png_ptr->mode |= PNG_HAVE_IDAT; + } + +@@ -1732,6 +1761,66 @@ + } + #endif + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++void /* PRIVATE */ ++png_write_acTL(png_structp png_ptr, ++ png_uint_32 num_frames, png_uint_32 num_plays) ++{ ++ PNG_acTL; ++ png_byte data[16]; ++ ++ png_debug(1, "in png_write_acTL"); ++ ++ png_ptr->num_frames_to_write = num_frames; ++ ++ if (png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN) ++ num_frames--; ++ ++ png_save_uint_32(data, num_frames); ++ png_save_uint_32(data + 4, num_plays); ++ ++ png_write_chunk(png_ptr, (png_bytep)png_acTL, data, (png_size_t)8); ++} ++ ++void /* PRIVATE */ ++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_fcTL; ++ png_byte data[26]; ++ ++ png_debug(1, "in png_write_fcTL"); ++ ++ if (png_ptr->num_frames_written == 0 && (x_offset != 0 || y_offset != 0)) ++ png_error(png_ptr, "x and/or y offset for the first frame aren't 0"); ++ if (png_ptr->num_frames_written == 0 && ++ (width != png_ptr->first_frame_width || ++ height != png_ptr->first_frame_height)) ++ png_error(png_ptr, "width and/or height in the first frame's fcTL " ++ "don't match the ones in IHDR"); ++ ++ /* more error checking */ ++ png_ensure_fcTL_is_valid(png_ptr, width, height, x_offset, y_offset, ++ delay_num, delay_den, dispose_op, blend_op); ++ ++ png_save_uint_32(data, png_ptr->next_seq_num); ++ png_save_uint_32(data + 4, width); ++ png_save_uint_32(data + 8, height); ++ png_save_uint_32(data + 12, x_offset); ++ png_save_uint_32(data + 16, y_offset); ++ png_save_uint_16(data + 20, delay_num); ++ png_save_uint_16(data + 22, delay_den); ++ data[24] = dispose_op; ++ data[25] = blend_op; ++ ++ png_write_chunk(png_ptr, (png_bytep)png_fcTL, data, (png_size_t)26); ++ ++ png_ptr->next_seq_num++; ++} ++#endif /* PNG_WRITE_APNG_SUPPORTED */ ++ + /* Initializes the row writing capability of libpng */ + void /* PRIVATE */ + png_write_start_row(png_structp png_ptr) +@@ -2803,4 +2892,39 @@ + } + #endif + } ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++void /* PRIVATE */ ++png_write_reset(png_structp png_ptr) ++{ ++ png_ptr->row_number = 0; ++ png_ptr->pass = 0; ++ png_ptr->mode &= ~PNG_HAVE_IDAT; ++} ++ ++void /* PRIVATE */ ++png_write_reinit(png_structp png_ptr, png_infop info_ptr, ++ png_uint_32 width, png_uint_32 height) ++{ ++ if (png_ptr->num_frames_written == 0 && ++ (width != png_ptr->first_frame_width || ++ height != png_ptr->first_frame_height)) ++ png_error(png_ptr, "width and/or height in the first frame's fcTL " ++ "don't match the ones in IHDR"); ++ if (width > png_ptr->first_frame_width || ++ height > png_ptr->first_frame_height) ++ png_error(png_ptr, "width and/or height for a frame greater than" ++ "the ones in IHDR"); ++ ++ png_set_IHDR(png_ptr, info_ptr, width, height, ++ info_ptr->bit_depth, info_ptr->color_type, ++ info_ptr->interlace_type, info_ptr->compression_type, ++ info_ptr->filter_type); ++ ++ png_ptr->width = width; ++ png_ptr->height = height; ++ png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width); ++ png_ptr->usr_width = png_ptr->width; ++} ++#endif + #endif /* PNG_WRITE_SUPPORTED */ diff --git a/libpng14.spec b/libpng14.spec new file mode 100644 index 0000000..0fb0a19 --- /dev/null +++ b/libpng14.spec @@ -0,0 +1,192 @@ +Name: libpng14 +Version: 1.4.11 +Release: 2mamba +Summary: A library of functions for manipulating PNG image format files +Group: System/Libraries +Vendor: openmamba +Distribution: openmamba +Packager: Silvan Calarco +URL: http://www.libpng.org/pub/png/libpng.html +Source: http://downloads.sourceforge.net/sourceforge/libpng/libpng-%{version}.tar.bz2 +Source1: http://downloads.sourceforge.net/project/libpng-apng/libpng14/%{version}/libpng-%{version}-apng.patch.gz +#Source1: http://downloads.sourceforge.net/project/libpng-apng/libpng-master/%{version}/libpng-%{version}-apng.patch.gz +Patch1: libpng-1.2.8-link_to_proper_libs.patch +License: OSI Approved +## AUTOBUILDREQ-BEGIN +BuildRequires: glibc-devel +BuildRequires: libz-devel +## AUTOBUILDREQ-END +BuildRoot: %{_tmppath}/%{name}-%{version}-root + +%debug_package + +%description +This package contains the library needed to run programs dynamically linked with libpng. + +%package devel +Summary: Development tools for programs to manipulate PNG image format files +Group: Development/Libraries +Requires: %{name} = %{?epoch:%epoch:}%{version}-%{release} + +%description devel +The libpng-devel package contains the header files and libraries necessary for developing programs using the PNG (Portable Network Graphics) library. + +If you want to develop programs which will manipulate PNG image format files, you should install libpng-devel. +You'll also need to install the libpng package. + +%prep +%setup -q -n libpng-%{version} +gunzip -c %{SOURCE1} | patch -p1 + +%build +%configure --enable-shared --enable-static +%make + +%install +[ "%{buildroot}" != / ] && rm -rf "%{buildroot}" +%makeinstall + +rm -f %{buildroot}%{_bindir}/libpng-config +rm -f %{buildroot}%{_includedir}/png.h +rm -f %{buildroot}%{_includedir}/pngconf.h +rm -f %{buildroot}%{_libdir}/libpng.{a,la,so} +rm -f %{buildroot}%{_libdir}/pkgconfig/libpng.pc +rm -f %{buildroot}%{_mandir}/man3/libpng.* +rm -f %{buildroot}%{_mandir}/man3/libpngpf.* +rm -f %{buildroot}%{_mandir}/man5/png.* + +rm -f %{buildroot}%{_libdir}/libpng14.la + +%clean +[ "%{buildroot}" != / ] && rm -rf "%{buildroot}" + +%post -p /sbin/ldconfig + +%postun -p /sbin/ldconfig + +%post devel +sed -i "s|%{_libdir}/libpng14.la||g" %{_libdir}/*.la +: + +%files +%defattr(-,root,root) +#%{_libdir}/libpng.so.* +%{_libdir}/libpng14.so.* +%doc LICENSE + +%files devel +%defattr(-,root,root) +%{_bindir}/libpng14-config +%dir %{_includedir}/libpng14/ +%{_includedir}/libpng14/* +%{_libdir}/libpng14.a +%{_libdir}/libpng14.so +%{_libdir}/pkgconfig/libpng14.pc +%doc ANNOUNCE CHANGES README TODO +%doc pngbar.jpg pngbar.png pngnow.png + +%changelog +* Sun Aug 19 2012 Silvan Calarco 1.4.11-2mamba +- remove libpng14.la + +* Thu Jun 07 2012 Silvan Calarco 1.4.11-1mamba +- update to 1.4.11 +- renamed to libpng14 + +* Tue Jul 26 2011 Silvan Calarco 1.4.8-1mamba +- update to 1.4.8 + +* Thu May 12 2011 Automatic Build System 1.4.7-1mamba +- automatic update by autodist + +* Thu Dec 16 2010 Silvan Calarco 1.4.5-2mamba +- rebuilt with debug package + +* Mon Dec 13 2010 Automatic Build System 1.4.5-1mamba +- automatic update by autodist + +* Mon Sep 27 2010 Automatic Build System 1.4.4-1mamba +- automatic update by autodist + +* Mon Jun 28 2010 Automatic Build System 1.4.3-1mamba +- automatic update by autodist + +* Sat Jun 05 2010 Automatic Build System 1.4.2-1mamba +- automatic update by autodist + +* Mon Dec 21 2009 Automatic Build System 1.2.41-1mamba +- automatic update by autodist + +* Sat Nov 21 2009 Automatic Build System 1.2.40-1mamba +- automatic update by autodist + +* Thu Jul 02 2009 Silvan Calarco 1.2.37-1mamba +- update to 1.2.37 + +* Thu May 28 2009 Automatic Build System 1.2.36-1mamba +- automatic update by autodist + +* Mon Mar 02 2009 Silvan Calarco 1.2.35-1mamba +- automatic update by autodist + +* Fri Jan 02 2009 Silvan Calarco 1.2.34-1mamba +- automatic update by autodist + +* Sun Nov 30 2008 gil 1.2.33-1mamba +- update to 1.2.33 + +* Thu Jun 19 2008 Silvan Calarco 1.2.29-2mamba +- added apng (animated png) patch from cblfs.cross-lfs.org/index.php/Libpng + +* Sat May 31 2008 gil 1.2.29-1mamba +- update to 1.2.29 + +* Fri Jul 27 2007 Silvan Calarco 1.2.18-2mamba +- re-enable build of static library needed by splashutils + +* Tue Jun 05 2007 Aleph0 1.2.18-1mamba +- security update to 1.2.18 to fix CVE-2007-2445 +- do not build the static library + +* Wed Feb 21 2007 Silvan Calarco 1.2.16-2qilnx +- don't exclude static library libpng.a + +* Fri Feb 09 2007 Davide Madrisan 1.2.16-1qilnx +- update to version 1.2.16 by autospec +- dropped patch against CVE-2006-3334: merged upstream +- dropped patches used to fix link libraries and installation paths: fixed + upstream +- man pages moved to devel package + +* Thu Jul 20 2006 Davide Madrisan 1.2.8-2qilnx +- fixed buffer overflow in chunk error processing (CVE-2006-3334, qibug#202) + +* Wed Feb 16 2005 Davide Madrisan 1.2.8-1qilnx +- update to version 1.2.8 by autospec +- specfile updates + +* Tue Dec 21 2004 Silvan Calarco 1.2.5-8qilnx +- added patch to link library to proper libs + +* Sat Nov 06 2004 Davide Madrisan 1.2.5-7qilnx +- specfile cleanups, added patch 'libpng-1.2.5-qilinux-paths' +- libpng-config and libpng12-config scripts moved to devel package +- added documentation + +* Fri Nov 05 2004 Davide Madrisan 1.2.5-6qilnx +- security fix QSA-2004-051 (CAN-2004-0768) + +* Thu Jul 05 2004 Davide Madrisan 1.2.5-5qilnx +- security fix for CAN-2004-0597, CAN-2004-0598, CAN-2004-0599 + +* Mon May 03 2004 Davide Madrisan 1.2.5-4qilnx +- security fix for CAN-2004-0421 + +* Tue Jul 08 2003 Silvan Calarco 1.2.5-3qilnx +- rebuilt with minor changes + +* Tue May 13 2003 Silvan Calarco 1.2.5-2qilnx +- added symlinks libpng.so and libpng12.so to devel package + +* Thu Apr 17 2003 Alessandro Ramazzina 1.2.5-1qilnx +- creation of libpng package