diff --git a/CMakeModules/DuckStationDependencies.cmake b/CMakeModules/DuckStationDependencies.cmake index b06fc5364..02efa2969 100644 --- a/CMakeModules/DuckStationDependencies.cmake +++ b/CMakeModules/DuckStationDependencies.cmake @@ -39,7 +39,7 @@ endif() # Bundled dependencies. find_package(zstd 1.5.7 REQUIRED) find_package(WebP REQUIRED) # v1.4.0, spews an error on Linux because no pkg-config. -find_package(PNG 1.6.53 REQUIRED) +find_package(PNG 1.6.54 REQUIRED) find_package(JPEG REQUIRED) find_package(SDL3 3.4.0 REQUIRED) find_package(Freetype 2.14.1 REQUIRED) @@ -77,9 +77,9 @@ if(BUILD_QT_FRONTEND) set(QT_NO_PRIVATE_MODULE_WARNING ON) if(LINUX) - find_package(Qt6 6.10.1 COMPONENTS Core Gui GuiPrivate Widgets LinguistTools DBus REQUIRED) + find_package(Qt6 6.10.2 COMPONENTS Core Gui GuiPrivate Widgets LinguistTools DBus REQUIRED) else() - find_package(Qt6 6.10.1 COMPONENTS Core Gui GuiPrivate Widgets LinguistTools REQUIRED) + find_package(Qt6 6.10.2 COMPONENTS Core Gui GuiPrivate Widgets LinguistTools REQUIRED) endif() # Have to verify it down here, don't want users using unpatched Qt. diff --git a/scripts/deps/build-dependencies-linux-cross.sh b/scripts/deps/build-dependencies-linux-cross.sh index 55cee1892..ed51e5cf1 100755 --- a/scripts/deps/build-dependencies-linux-cross.sh +++ b/scripts/deps/build-dependencies-linux-cross.sh @@ -198,7 +198,7 @@ echo "Building libpng..." rm -fr "libpng-$LIBPNG" tar xf "libpng-$LIBPNG.tar.gz" cd "libpng-$LIBPNG" -patch -p1 < "$SCRIPTDIR/libpng-1.6.50-apng.patch" +patch -p1 < "$SCRIPTDIR/libpng-1.6.54-apng.patch" cmake "${CMAKE_COMMON[@]}" -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_STATIC=OFF -DPNG_SHARED=ON -DPNG_TOOLS=OFF -B build -G Ninja cmake --build build --parallel ninja -C build install diff --git a/scripts/deps/build-dependencies-linux.sh b/scripts/deps/build-dependencies-linux.sh index 1c6b6f309..12cddcd3e 100755 --- a/scripts/deps/build-dependencies-linux.sh +++ b/scripts/deps/build-dependencies-linux.sh @@ -141,7 +141,7 @@ echo "Building libpng..." rm -fr "libpng-$LIBPNG" tar xf "libpng-$LIBPNG.tar.gz" cd "libpng-$LIBPNG" -patch -p1 < "$SCRIPTDIR/libpng-1.6.50-apng.patch" +patch -p1 < "$SCRIPTDIR/libpng-1.6.54-apng.patch" cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$INSTALLDIR" -DCMAKE_INSTALL_PREFIX="$INSTALLDIR" -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_STATIC=OFF -DPNG_SHARED=ON -DPNG_TOOLS=OFF -B build -G Ninja cmake --build build --parallel ninja -C build install diff --git a/scripts/deps/build-dependencies-mac.sh b/scripts/deps/build-dependencies-mac.sh index 0f0cf807b..6d0a56954 100755 --- a/scripts/deps/build-dependencies-mac.sh +++ b/scripts/deps/build-dependencies-mac.sh @@ -125,7 +125,7 @@ echo "Installing libpng..." rm -fr "libpng-$LIBPNG" tar xf "libpng-$LIBPNG.tar.gz" cd "libpng-$LIBPNG" -patch -p1 < "$SCRIPTDIR/libpng-1.6.50-apng.patch" +patch -p1 < "$SCRIPTDIR/libpng-1.6.54-apng.patch" cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_X64" -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_FRAMEWORK=OFF -B build make -C build "-j$NPROCS" cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_ARM64" -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_ARM_NEON=on -DPNG_FRAMEWORK=OFF -B build-arm64 diff --git a/scripts/deps/build-dependencies-windows-arm64.bat b/scripts/deps/build-dependencies-windows-arm64.bat index 7bd54942b..150a695c0 100644 --- a/scripts/deps/build-dependencies-windows-arm64.bat +++ b/scripts/deps/build-dependencies-windows-arm64.bat @@ -107,7 +107,7 @@ echo Building libpng... rmdir /S /Q "libpng-%LIBPNG%" tar -xf "libpng-%LIBPNG%.tar.gz" || goto error cd "libpng-%LIBPNG%" || goto error -%PATCH% -p1 < "%SCRIPTDIR%\libpng-1.6.50-apng.patch" || goto error +%PATCH% -p1 < "%SCRIPTDIR%\libpng-1.6.54-apng.patch" || goto error cmake %ARM64TOOLCHAIN% -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="%INSTALLDIR%" -DCMAKE_INSTALL_PREFIX="%INSTALLDIR%" -DBUILD_SHARED_LIBS=ON -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_STATIC=OFF -DPNG_SHARED=ON -DPNG_TOOLS=OFF -B build -G Ninja || goto error cmake --build build --parallel || goto error ninja -C build install || goto error diff --git a/scripts/deps/build-dependencies-windows-x64.bat b/scripts/deps/build-dependencies-windows-x64.bat index c943925d2..633b262f0 100644 --- a/scripts/deps/build-dependencies-windows-x64.bat +++ b/scripts/deps/build-dependencies-windows-x64.bat @@ -104,7 +104,7 @@ echo Building libpng... rmdir /S /Q "libpng-%LIBPNG%" tar -xf "libpng-%LIBPNG%.tar.gz" || goto error cd "libpng-%LIBPNG%" || goto error -%PATCH% -p1 < "%SCRIPTDIR%\libpng-1.6.50-apng.patch" || goto error +%PATCH% -p1 < "%SCRIPTDIR%\libpng-1.6.54-apng.patch" || goto error cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="%INSTALLDIR%" -DCMAKE_INSTALL_PREFIX="%INSTALLDIR%" -DBUILD_SHARED_LIBS=ON -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_STATIC=OFF -DPNG_SHARED=ON -DPNG_TOOLS=OFF -B build -G Ninja || goto error cmake --build build --parallel || goto error ninja -C build install || goto error diff --git a/scripts/deps/libpng-1.6.50-apng.patch b/scripts/deps/libpng-1.6.50-apng.patch deleted file mode 100644 index 79c9d423e..000000000 --- a/scripts/deps/libpng-1.6.50-apng.patch +++ /dev/null @@ -1,1711 +0,0 @@ -diff -Naru libpng-1.6.50.org/png.h libpng-1.6.50/png.h ---- libpng-1.6.50.org/png.h 2025-07-06 11:07:05.802823471 +0900 -+++ libpng-1.6.50/png.h 2025-07-06 11:06:06.725585864 +0900 -@@ -328,6 +328,10 @@ - # 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" -@@ -423,6 +427,17 @@ - * 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 0x00U -+#define PNG_DISPOSE_OP_BACKGROUND 0x01U -+#define PNG_DISPOSE_OP_PREVIOUS 0x02U -+ -+/* blend_op flags from inside fcTL */ -+#define PNG_BLEND_OP_SOURCE 0x00U -+#define PNG_BLEND_OP_OVER 0x01U -+#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. - */ -@@ -796,6 +811,10 @@ - #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 -@@ -3357,6 +3376,75 @@ - * END OF HARDWARE AND SOFTWARE OPTIONS - ******************************************************************************/ - -+#ifdef PNG_APNG_SUPPORTED -+PNG_EXPORT(260, 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(261, 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(262, png_uint_32, png_get_num_frames, (png_structp png_ptr, -+ png_infop info_ptr)); -+ -+PNG_EXPORT(263, png_uint_32, png_get_num_plays, (png_structp png_ptr, -+ png_infop info_ptr)); -+ -+PNG_EXPORT(264, 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(265, 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(266, png_uint_32, png_get_next_frame_width, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(267, png_uint_32, png_get_next_frame_height, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(268, png_uint_32, png_get_next_frame_x_offset, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(269, png_uint_32, png_get_next_frame_y_offset, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(270, png_uint_16, png_get_next_frame_delay_num, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(271, png_uint_16, png_get_next_frame_delay_den, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(272, png_byte, png_get_next_frame_dispose_op, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(273, png_byte, png_get_next_frame_blend_op, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(274, png_byte, png_get_first_frame_is_hidden, -+ (png_structp png_ptr, png_infop info_ptr)); -+PNG_EXPORT(275, 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(276, void, png_read_frame_head, (png_structp png_ptr, -+ png_infop info_ptr)); -+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -+PNG_EXPORT(277, 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 */ -+ -+#ifdef PNG_WRITE_APNG_SUPPORTED -+PNG_EXPORT(278, void, png_write_frame_head, (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(279, 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. - */ -@@ -3365,7 +3453,11 @@ - * one to use is one more than this.) - */ - #ifdef PNG_EXPORT_LAST_ORDINAL -+#ifdef PNG_APNG_SUPPORTED -+ PNG_EXPORT_LAST_ORDINAL(279); -+#else - PNG_EXPORT_LAST_ORDINAL(259); -+#endif /* PNG_APNG_SUPPORTED */ - #endif - - #ifdef __cplusplus -diff -Naru libpng-1.6.50.org/pngget.c libpng-1.6.50/pngget.c ---- libpng-1.6.50.org/pngget.c 2025-05-11 18:43:40.120980695 +0900 -+++ libpng-1.6.50/pngget.c 2025-07-06 11:06:06.725585864 +0900 -@@ -1367,4 +1367,166 @@ - # endif - #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 && y_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); -+ -+ PNG_UNUSED(info_ptr) -+ -+ return 0; -+} -+#endif /* PNG_APNG_SUPPORTED */ - #endif /* READ || WRITE */ -diff -Naru libpng-1.6.50.org/pnginfo.h libpng-1.6.50/pnginfo.h ---- libpng-1.6.50.org/pnginfo.h 2025-05-11 18:44:02.085040902 +0900 -+++ libpng-1.6.50/pnginfo.h 2025-07-06 11:06:06.725585864 +0900 -@@ -259,5 +259,18 @@ - #ifdef PNG_sRGB_SUPPORTED - int rendering_intent; - #endif -+ -+#ifdef PNG_APNG_SUPPORTED -+ png_uint_32 num_frames; /* including default image */ -+ png_uint_32 num_plays; -+ png_uint_32 next_frame_width; -+ png_uint_32 next_frame_height; -+ png_uint_32 next_frame_x_offset; -+ png_uint_32 next_frame_y_offset; -+ png_uint_16 next_frame_delay_num; -+ png_uint_16 next_frame_delay_den; -+ png_byte next_frame_dispose_op; -+ png_byte next_frame_blend_op; -+#endif - }; - #endif /* PNGINFO_H */ -diff -Naru libpng-1.6.50.org/pngpread.c libpng-1.6.50/pngpread.c ---- libpng-1.6.50.org/pngpread.c 2025-07-06 11:06:43.933735454 +0900 -+++ libpng-1.6.50/pngpread.c 2025-07-06 11:06:06.725585864 +0900 -@@ -200,6 +200,106 @@ - - chunk_name = png_ptr->chunk_name; - -+#ifdef PNG_READ_APNG_SUPPORTED -+ if (png_ptr->num_frames_read > 0 && -+ png_ptr->num_frames_read < info_ptr->num_frames) -+ { -+ 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) -+ 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_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_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_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 (chunk_name == png_fcTL) -+ { -+ 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_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -+ return; -+ } -+ -+ return; -+ } -+#endif /* PNG_READ_APNG_SUPPORTED */ -+ - if (chunk_name == png_IDAT) - { - if ((png_ptr->mode & PNG_AFTER_IDAT) != 0) -@@ -268,6 +368,9 @@ - - else if (chunk_name == png_IDAT) - { -+#ifdef PNG_READ_APNG_SUPPORTED -+ png_have_info(png_ptr, info_ptr); -+#endif - png_ptr->idat_size = png_ptr->push_length; - png_ptr->process_mode = PNG_READ_IDAT_MODE; - png_push_have_info(png_ptr, info_ptr); -@@ -278,6 +381,31 @@ - return; - } - -+#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_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_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length); -+ } -+ -+#endif /* PNG_READ_APNG_SUPPORTED */ -+ - else - { - PNG_PUSH_SAVE_BUFFER_IF_FULL -@@ -409,7 +537,11 @@ - png_byte chunk_tag[4]; - - /* TODO: this code can be commoned up with the same code in push_read */ -+#ifdef PNG_READ_APNG_SUPPORTED -+ PNG_PUSH_SAVE_BUFFER_IF_LT(12) -+#else - PNG_PUSH_SAVE_BUFFER_IF_LT(8) -+#endif - 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); -@@ -417,17 +549,64 @@ - 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) -+ { -+ 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_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_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 -+#ifdef PNG_READ_APNG_SUPPORTED -+ if (png_ptr->chunk_name != png_IDAT && png_ptr->num_frames_read == 0) -+#else - if (png_ptr->chunk_name != png_IDAT) -+#endif - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - - if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0) - 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 != 0 && png_ptr->save_buffer_size != 0) -@@ -501,6 +680,15 @@ - 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) -+ { -+ 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. -@@ -934,6 +1122,18 @@ - 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; -+ png_ptr->apng_flags |= PNG_APNG_APP; -+} -+#endif -+ - png_voidp PNGAPI - png_get_progressive_ptr(png_const_structrp png_ptr) - { -diff -Naru libpng-1.6.50.org/pngpriv.h libpng-1.6.50/pngpriv.h ---- libpng-1.6.50.org/pngpriv.h 2025-07-06 11:06:43.933735454 +0900 -+++ libpng-1.6.50/pngpriv.h 2025-07-06 11:06:06.743585936 +0900 -@@ -653,6 +653,10 @@ - #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */ - #define PNG_WROTE_eXIf 0x4000U - #define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */ -+#ifdef PNG_APNG_SUPPORTED -+#define PNG_HAVE_acTL 0x10000U -+#define PNG_HAVE_fcTL 0x20000U -+#endif - - /* Flags for the transformations the PNG library does on the image data */ - #define PNG_BGR 0x0001U -@@ -917,6 +921,13 @@ - #define png_tRNS PNG_U32(116, 82, 78, 83) - #define png_zTXt PNG_U32(122, 84, 88, 116) - -+#ifdef PNG_APNG_SUPPORTED -+ -+/* For png_struct.apng_flags: */ -+#define PNG_FIRST_FRAME_HIDDEN 0x0001U -+#define PNG_APNG_APP 0x0002U -+#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. - */ -@@ -1719,6 +1730,47 @@ - PNG_EMPTY); - #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 /* PNG_PROGRESSIVE_READ_SUPPORTED */ -+#endif /* PNG_READ_APNG_SUPPORTED */ -+ -+#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 /* PNG_WRITE_APNG_SUPPORTED */ -+#endif /* PNG_APNG_SUPPORTED */ -+ - #ifdef PNG_iCCP_SUPPORTED - /* Routines for checking parts of an ICC profile. */ - #ifdef PNG_READ_iCCP_SUPPORTED -diff -Naru libpng-1.6.50.org/pngread.c libpng-1.6.50/pngread.c ---- libpng-1.6.50.org/pngread.c 2025-07-06 11:06:43.934735458 +0900 -+++ libpng-1.6.50/pngread.c 2025-07-06 11:06:06.726585868 +0900 -@@ -155,16 +155,96 @@ - - 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; - } - -+#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_chunk(png_ptr, info_ptr, length); - } - } - #endif /* SEQUENTIAL_READ */ - -+#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_read_reset(png_ptr); -+ png_ptr->flags &= ~PNG_FLAG_ROW_INIT; -+ png_ptr->mode &= ~PNG_HAVE_fcTL; -+ -+ have_chunk_after_DAT = 0; -+ for (;;) -+ { -+ png_uint_32 length = png_read_chunk_header(png_ptr); -+ -+ if (png_ptr->chunk_name == png_IDAT) -+ { -+ /* 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_ptr->chunk_name == png_fcTL) -+ { -+ png_handle_fcTL(png_ptr, info_ptr, length); -+ have_chunk_after_DAT = 1; -+ } -+ -+ else if (png_ptr->chunk_name == png_fdAT) -+ { -+ 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_structrp png_ptr, png_inforp info_ptr) -diff -Naru libpng-1.6.50.org/pngrutil.c libpng-1.6.50/pngrutil.c ---- libpng-1.6.50.org/pngrutil.c 2025-07-06 11:06:43.934735458 +0900 -+++ libpng-1.6.50/pngrutil.c 2025-07-06 11:06:06.727585872 +0900 -@@ -922,6 +922,11 @@ - 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; -@@ -2718,6 +2723,179 @@ - # define png_handle_iTXt NULL - #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_warning(png_ptr, "fcTL for the first frame must have zero offset"); -+ return; -+ } -+ -+ if (info_ptr != NULL) -+ { -+ if (png_ptr->num_frames_read == 0 && -+ (width != info_ptr->width || height != info_ptr->height)) -+ { -+ png_warning(png_ptr, "size in first frame's fcTL must match " -+ "the size in IHDR"); -+ return; -+ } -+ -+ /* 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); -+ PNG_UNUSED(info_ptr) -+} -+ -+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 */ -+ - #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED - /* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */ - static int -@@ -4200,7 +4378,38 @@ - { - uInt avail_in; - png_bytep buffer; -+#ifdef PNG_READ_APNG_SUPPORTED -+ png_uint_32 bytes_to_skip = 0; - -+ while (png_ptr->idat_size == 0 || bytes_to_skip != 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_ptr->num_frames_read == 0) -+ { -+ if (png_ptr->chunk_name != png_IDAT) -+ png_error(png_ptr, "Not enough image data"); -+ } -+ else -+ { -+ if (png_ptr->chunk_name == png_IEND) -+ png_error(png_ptr, "Not enough image data"); -+ if (png_ptr->chunk_name != png_fdAT) -+ { -+ 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; -+ } -+ } -+#else - while (png_ptr->idat_size == 0) - { - png_crc_finish(png_ptr, 0); -@@ -4212,7 +4421,7 @@ - if (png_ptr->chunk_name != png_IDAT) - png_error(png_ptr, "Not enough image data"); - } -- -+#endif /* PNG_READ_APNG_SUPPORTED */ - avail_in = png_ptr->IDAT_read_size; - - if (avail_in > png_chunk_max(png_ptr)) -@@ -4283,6 +4492,9 @@ - - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; -+#ifdef PNG_READ_APNG_SUPPORTED -+ png_ptr->num_frames_read++; -+#endif - - if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0) - png_chunk_benign_error(png_ptr, "Extra compressed data"); -@@ -4692,4 +4904,80 @@ - - 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; -+} -+ -+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); -+ png_ptr->info_rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, -+ png_ptr->width); -+ if (png_ptr->prev_row) -+ memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); -+} -+ -+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -+/* same as png_read_reset() but for the progressive reader */ -+void /* PRIVATE */ -+png_progressive_read_reset(png_structp png_ptr) -+{ -+#ifdef PNG_READ_INTERLACING_SUPPORTED -+ /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ -+ -+ /* Start of interlace block */ -+ const int png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; -+ -+ /* Offset to next interlace block */ -+ const int png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; -+ -+ /* Start of interlace block in the y direction */ -+ const int png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; -+ -+ /* Offset to next interlace block in the y direction */ -+ const int png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; -+ -+ 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 -+#endif /* PNG_READ_INTERLACING_SUPPORTED */ -+ { -+ png_ptr->num_rows = png_ptr->height; -+ png_ptr->iwidth = png_ptr->width; -+ } -+ png_ptr->flags &= ~PNG_FLAG_ZSTREAM_ENDED; -+ 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_PROGRESSIVE_READ_SUPPORTED */ -+#endif /* PNG_READ_APNG_SUPPORTED */ - #endif /* READ */ -diff -Naru libpng-1.6.50.org/pngset.c libpng-1.6.50/pngset.c ---- libpng-1.6.50.org/pngset.c 2025-05-11 18:44:02.087040907 +0900 -+++ libpng-1.6.50/pngset.c 2025-07-06 11:06:06.727585872 +0900 -@@ -460,6 +460,11 @@ - 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 -+ /* for non-animated png. this may be overwritten from an acTL chunk later */ -+ info_ptr->num_frames = 1; -+#endif - } - - #ifdef PNG_oFFs_SUPPORTED -@@ -1315,6 +1320,147 @@ - } - #endif /* sPLT */ - -+#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 == 0 || width > PNG_UINT_31_MAX) -+ png_error(png_ptr, "invalid width in fcTL (> 2^31-1)"); -+ if (height == 0 || 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 (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 (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_UNUSED(delay_num) -+ PNG_UNUSED(delay_den) -+} -+ -+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; -+ -+ PNG_UNUSED(info_ptr) -+ -+ return 1; -+} -+#endif /* PNG_APNG_SUPPORTED */ -+ - #ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED - static png_byte - check_location(png_const_structrp png_ptr, int location) -diff -Naru libpng-1.6.50.org/pngstruct.h libpng-1.6.50/pngstruct.h ---- libpng-1.6.50.org/pngstruct.h 2025-06-14 15:22:41.053935129 +0900 -+++ libpng-1.6.50/pngstruct.h 2025-07-06 11:06:06.727585872 +0900 -@@ -391,6 +391,27 @@ - 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 /* PNG_APNG_SUPPORTED */ -+ - /* 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 */ -diff -Naru libpng-1.6.50.org/pngtest.c libpng-1.6.50/pngtest.c ---- libpng-1.6.50.org/pngtest.c 2025-07-06 11:07:05.802823471 +0900 -+++ libpng-1.6.50/pngtest.c 2025-07-06 11:06:06.727585872 +0900 -@@ -877,6 +877,10 @@ - int bit_depth, color_type; - user_chunk_info my_user_chunk_data; - int pass, num_passes; -+#ifdef PNG_APNG_SUPPORTED -+ png_uint_32 num_frames; -+ png_uint_32 num_plays; -+#endif - - row_buf = NULL; - error_parameters.file_name = inname; -@@ -1437,6 +1441,22 @@ - } - } - #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; -@@ -1496,6 +1516,110 @@ - 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_passes; pass++) -+ { -+# ifdef calc_pass_height -+ png_uint_32 pass_height; -+ -+ if (num_passes == 7) /* interlaced */ -+ { -+ if (PNG_PASS_COLS(frame_width, pass) > 0) -+ pass_height = PNG_PASS_ROWS(frame_height, pass); -+ -+ else -+ pass_height = 0; -+ } -+ -+ else /* not interlaced */ -+ pass_height = frame_height; -+# else -+# define pass_height frame_height -+# endif -+ -+ pngtest_debug1("Writing row data for pass %d", pass); -+ for (y = 0; y < pass_height; y++) -+ { -+#ifndef SINGLE_ROWBUF_ALLOC -+ pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y); -+ -+ row_buf = (png_bytep)png_malloc(read_ptr, -+ png_get_rowbytes(read_ptr, read_info_ptr)); -+ -+ pngtest_debug2("\t0x%08lx (%lu bytes)", (unsigned long)row_buf, -+ (unsigned long)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 = %u)", 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_passes; pass++) - { - # ifdef calc_pass_height -diff -Naru libpng-1.6.50.org/pngwrite.c libpng-1.6.50/pngwrite.c ---- libpng-1.6.50.org/pngwrite.c 2025-05-11 18:44:02.088040910 +0900 -+++ libpng-1.6.50/pngwrite.c 2025-07-06 11:06:06.728585876 +0900 -@@ -127,6 +127,11 @@ - * 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_WRITE_UNKNOWN_CHUNKS_SUPPORTED - /* Write unknown chunks first; PNG v3 establishes a precedence order - * for colourspace chunks. It is certain therefore that new -@@ -405,6 +410,11 @@ - png_benign_error(png_ptr, "Wrote palette index exceeding num_palette"); - #endif - -+#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) - { -@@ -1515,6 +1525,41 @@ - } - #endif - -+#ifdef PNG_WRITE_APNG_SUPPORTED -+void PNGAPI -+png_write_frame_head(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_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 info_ptr) -+{ -+ png_debug(1, "in png_write_frame_tail"); -+ -+ png_ptr->num_frames_written++; -+ -+ PNG_UNUSED(info_ptr) -+} -+#endif /* PNG_WRITE_APNG_SUPPORTED */ - - #ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED - /* Initialize the write structure - general purpose utility. */ -diff -Naru libpng-1.6.50.org/pngwutil.c libpng-1.6.50/pngwutil.c ---- libpng-1.6.50.org/pngwutil.c 2025-05-11 18:43:40.128980717 +0900 -+++ libpng-1.6.50/pngwutil.c 2025-07-06 11:06:06.728585876 +0900 -@@ -838,6 +838,11 @@ - /* Write the chunk */ - png_write_complete_chunk(png_ptr, png_IHDR, buf, 13); - -+#ifdef PNG_WRITE_APNG_SUPPORTED -+ png_ptr->first_frame_width = width; -+ png_ptr->first_frame_height = height; -+#endif -+ - if ((png_ptr->do_filter) == PNG_NO_FILTERS) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || -@@ -1019,8 +1024,17 @@ - optimize_cmf(data, png_image_size(png_ptr)); - #endif - -- if (size > 0) -- png_write_complete_chunk(png_ptr, png_IDAT, data, size); -+ if (size > 0) -+#ifdef PNG_WRITE_APNG_SUPPORTED -+ { -+ if (png_ptr->num_frames_written == 0) -+#endif -+ png_write_complete_chunk(png_ptr, png_IDAT, data, size); -+#ifdef PNG_WRITE_APNG_SUPPORTED -+ else -+ png_write_fdAT(png_ptr, data, size); -+ } -+#endif /* PNG_WRITE_APNG_SUPPORTED */ - png_ptr->mode |= PNG_HAVE_IDAT; - - png_ptr->zstream.next_out = data; -@@ -1067,7 +1081,17 @@ - #endif - - if (size > 0) -+#ifdef PNG_WRITE_APNG_SUPPORTED -+ { -+ if (png_ptr->num_frames_written == 0) -+#endif - png_write_complete_chunk(png_ptr, png_IDAT, data, size); -+#ifdef PNG_WRITE_APNG_SUPPORTED -+ else -+ png_write_fdAT(png_ptr, data, size); -+ } -+#endif /* PNG_WRITE_APNG_SUPPORTED */ -+ - png_ptr->zstream.avail_out = 0; - png_ptr->zstream.next_out = NULL; - png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT; -@@ -1969,6 +1993,82 @@ - } - #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_byte buf[8]; -+ -+ 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(buf, num_frames); -+ png_save_uint_32(buf + 4, num_plays); -+ -+ png_write_complete_chunk(png_ptr, png_acTL, buf, (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_byte buf[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(buf, png_ptr->next_seq_num); -+ png_save_uint_32(buf + 4, width); -+ png_save_uint_32(buf + 8, height); -+ png_save_uint_32(buf + 12, x_offset); -+ png_save_uint_32(buf + 16, y_offset); -+ png_save_uint_16(buf + 20, delay_num); -+ png_save_uint_16(buf + 22, delay_den); -+ buf[24] = dispose_op; -+ buf[25] = blend_op; -+ -+ png_write_complete_chunk(png_ptr, png_fcTL, buf, (png_size_t)26); -+ -+ png_ptr->next_seq_num++; -+} -+ -+void /* PRIVATE */ -+png_write_fdAT(png_structp png_ptr, -+ png_const_bytep data, png_size_t length) -+{ -+ png_byte buf[4]; -+ -+ png_write_chunk_header(png_ptr, png_fdAT, (png_uint_32)(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_WRITE_APNG_SUPPORTED */ -+ - /* Initializes the row writing capability of libpng */ - void /* PRIVATE */ - png_write_start_row(png_structrp png_ptr) -@@ -2822,4 +2922,39 @@ - } - #endif /* WRITE_FLUSH */ - } -+ -+#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 /* PNG_WRITE_APNG_SUPPORTED */ - #endif /* WRITE */ -diff -Naru libpng-1.6.50.org/scripts/symbols.def libpng-1.6.50/scripts/symbols.def ---- libpng-1.6.50.org/scripts/symbols.def 2025-01-26 08:07:01.594606745 +0900 -+++ libpng-1.6.50/scripts/symbols.def 2025-07-06 11:06:06.728585876 +0900 -@@ -263,3 +263,23 @@ - png_get_mDCV_fixed @257 - png_set_mDCV @258 - png_set_mDCV_fixed @259 -+ png_get_acTL @260 -+ png_set_acTL @261 -+ png_get_num_frames @262 -+ png_get_num_plays @263 -+ png_get_next_frame_fcTL @264 -+ png_set_next_frame_fcTL @265 -+ png_get_next_frame_width @266 -+ png_get_next_frame_height @267 -+ png_get_next_frame_x_offset @268 -+ png_get_next_frame_y_offset @269 -+ png_get_next_frame_delay_num @270 -+ png_get_next_frame_delay_den @271 -+ png_get_next_frame_dispose_op @272 -+ png_get_next_frame_blend_op @273 -+ png_get_first_frame_is_hidden @274 -+ png_set_first_frame_is_hidden @275 -+ png_read_frame_head @276 -+ png_set_progressive_frame_fn @277 -+ png_write_frame_head @278 -+ png_write_frame_tail @279 diff --git a/scripts/deps/libpng-1.6.54-apng.patch b/scripts/deps/libpng-1.6.54-apng.patch new file mode 100644 index 000000000..54c0001c9 --- /dev/null +++ b/scripts/deps/libpng-1.6.54-apng.patch @@ -0,0 +1,1739 @@ +diff -Naru libpng-1.6.54.org/png.h libpng-1.6.54/png.h +--- libpng-1.6.54.org/png.h 2026-01-15 09:54:33.410881877 +0900 ++++ libpng-1.6.54/png.h 2026-01-15 14:49:49.345302877 +0900 +@@ -328,6 +328,10 @@ + # 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" +@@ -423,6 +427,17 @@ + * 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 0x00U ++#define PNG_DISPOSE_OP_BACKGROUND 0x01U ++#define PNG_DISPOSE_OP_PREVIOUS 0x02U ++ ++/* blend_op flags from inside fcTL */ ++#define PNG_BLEND_OP_SOURCE 0x00U ++#define PNG_BLEND_OP_OVER 0x01U ++#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. + */ +@@ -801,6 +816,10 @@ + (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 +@@ -3506,6 +3525,80 @@ + * END OF HARDWARE AND SOFTWARE OPTIONS + ******************************************************************************/ + ++#ifdef PNG_APNG_SUPPORTED ++PNG_EXPORT(260, 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(261, 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(262, png_uint_32, png_get_num_frames, ++ (png_structp png_ptr, png_infop info_ptr)); ++ ++PNG_EXPORT(263, png_uint_32, png_get_num_plays, ++ (png_structp png_ptr, png_infop info_ptr)); ++ ++PNG_EXPORT(264, 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(265, 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(266, png_uint_32, png_get_next_frame_width, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(267, png_uint_32, png_get_next_frame_height, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(268, png_uint_32, png_get_next_frame_x_offset, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(269, png_uint_32, png_get_next_frame_y_offset, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(270, png_uint_16, png_get_next_frame_delay_num, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(271, png_uint_16, png_get_next_frame_delay_den, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(272, png_byte, png_get_next_frame_dispose_op, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(273, png_byte, png_get_next_frame_blend_op, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(274, png_byte, png_get_first_frame_is_hidden, ++ (png_structp png_ptr, png_infop info_ptr)); ++PNG_EXPORT(275, 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(276, void, png_read_frame_head, ++ (png_structp png_ptr, png_infop info_ptr)); ++#ifdef PNG_PROGRESSIVE_READ_SUPPORTED ++PNG_EXPORT(277, 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 */ ++ ++#ifdef PNG_WRITE_APNG_SUPPORTED ++PNG_EXPORT(278, void, png_write_frame_head, ++ (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(279, 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. + */ +@@ -3514,7 +3608,11 @@ + * one to use is one more than this.) + */ + #ifdef PNG_EXPORT_LAST_ORDINAL ++#ifdef PNG_APNG_SUPPORTED ++ PNG_EXPORT_LAST_ORDINAL(279); ++#else + PNG_EXPORT_LAST_ORDINAL(259); ++#endif /* PNG_APNG_SUPPORTED */ + #endif + + #ifdef __cplusplus +diff -Naru libpng-1.6.54.org/pngget.c libpng-1.6.54/pngget.c +--- libpng-1.6.54.org/pngget.c 2026-01-15 09:54:33.410881877 +0900 ++++ libpng-1.6.54/pngget.c 2026-01-16 15:37:23.199617980 +0900 +@@ -1366,4 +1366,166 @@ + # endif + #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 && y_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); ++ ++ PNG_UNUSED(info_ptr) ++ ++ return 0; ++} ++#endif /* PNG_APNG_SUPPORTED */ + #endif /* READ || WRITE */ +diff -Naru libpng-1.6.54.org/pnginfo.h libpng-1.6.54/pnginfo.h +--- libpng-1.6.54.org/pnginfo.h 2025-05-11 18:44:02.085040902 +0900 ++++ libpng-1.6.54/pnginfo.h 2026-01-15 13:50:32.228564907 +0900 +@@ -259,5 +259,18 @@ + #ifdef PNG_sRGB_SUPPORTED + int rendering_intent; + #endif ++ ++#ifdef PNG_APNG_SUPPORTED ++ png_uint_32 num_frames; /* including default image */ ++ png_uint_32 num_plays; ++ png_uint_32 next_frame_width; ++ png_uint_32 next_frame_height; ++ png_uint_32 next_frame_x_offset; ++ png_uint_32 next_frame_y_offset; ++ png_uint_16 next_frame_delay_num; ++ png_uint_16 next_frame_delay_den; ++ png_byte next_frame_dispose_op; ++ png_byte next_frame_blend_op; ++#endif + }; + #endif /* PNGINFO_H */ +diff -Naru libpng-1.6.54.org/pngpread.c libpng-1.6.54/pngpread.c +--- libpng-1.6.54.org/pngpread.c 2025-07-06 11:06:43.933735454 +0900 ++++ libpng-1.6.54/pngpread.c 2026-01-16 16:44:17.565675229 +0900 +@@ -200,6 +200,105 @@ + + chunk_name = png_ptr->chunk_name; + ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_ptr->num_frames_read > 0 && ++ png_ptr->num_frames_read < info_ptr->num_frames) ++ { ++ 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) ++ png_error(png_ptr, "Misplaced IDAT in APNG stream"); ++ ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ ++ 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_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, "Misplaced fdAT in APNG stream"); ++ ++ if (png_ptr->push_length + 4 > png_ptr->buffer_size) ++ { ++ png_push_save_buffer(png_ptr); ++ return; ++ } ++ ++ 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 (chunk_name == png_fcTL) ++ { ++ 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 in APNG stream"); ++ ++ 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, "Ignoring unexpected chunk in APNG sequence"); ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ return; ++ } ++ ++ return; ++ } ++#endif /* PNG_READ_APNG_SUPPORTED */ ++ + if (chunk_name == png_IDAT) + { + if ((png_ptr->mode & PNG_AFTER_IDAT) != 0) +@@ -268,6 +367,9 @@ + + else if (chunk_name == png_IDAT) + { ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_have_info(png_ptr, info_ptr); ++#endif + png_ptr->idat_size = png_ptr->push_length; + png_ptr->process_mode = PNG_READ_IDAT_MODE; + png_push_have_info(png_ptr, info_ptr); +@@ -278,6 +380,31 @@ + return; + } + ++#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_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_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length); ++ } ++ ++#endif /* PNG_READ_APNG_SUPPORTED */ ++ + else + { + PNG_PUSH_SAVE_BUFFER_IF_FULL +@@ -409,7 +536,11 @@ + png_byte chunk_tag[4]; + + /* TODO: this code can be commoned up with the same code in push_read */ ++#ifdef PNG_READ_APNG_SUPPORTED ++ PNG_PUSH_SAVE_BUFFER_IF_LT(12) ++#else + PNG_PUSH_SAVE_BUFFER_IF_LT(8) ++#endif + 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); +@@ -417,17 +548,63 @@ + 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) ++ { ++ 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_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_warning(png_ptr, "Ignoring unexpected chunk in APNG sequence"); ++ png_crc_finish(png_ptr, png_ptr->push_length); ++ png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; ++ return; ++ } ++ } ++ else ++#endif ++#ifdef PNG_READ_APNG_SUPPORTED ++ if (png_ptr->chunk_name != png_IDAT && png_ptr->num_frames_read == 0) ++#else + if (png_ptr->chunk_name != png_IDAT) ++#endif + { + png_ptr->process_mode = PNG_READ_CHUNK_MODE; + + if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0) + 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 != 0 && png_ptr->save_buffer_size != 0) +@@ -501,6 +678,15 @@ + 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) ++ { ++ 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. +@@ -934,6 +1120,18 @@ + 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; ++ png_ptr->apng_flags |= PNG_APNG_APP; ++} ++#endif ++ + png_voidp PNGAPI + png_get_progressive_ptr(png_const_structrp png_ptr) + { +diff -Naru libpng-1.6.54.org/pngpriv.h libpng-1.6.54/pngpriv.h +--- libpng-1.6.54.org/pngpriv.h 2026-01-15 09:54:33.411881875 +0900 ++++ libpng-1.6.54/pngpriv.h 2026-01-16 15:15:06.727223750 +0900 +@@ -653,6 +653,10 @@ + #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */ + #define PNG_WROTE_eXIf 0x4000U + #define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */ ++#ifdef PNG_APNG_SUPPORTED ++#define PNG_HAVE_acTL 0x10000U ++#define PNG_HAVE_fcTL 0x20000U ++#endif + + /* Flags for the transformations the PNG library does on the image data */ + #define PNG_BGR 0x0001U +@@ -917,6 +921,13 @@ + #define png_tRNS PNG_U32(116, 82, 78, 83) + #define png_zTXt PNG_U32(122, 84, 88, 116) + ++#ifdef PNG_APNG_SUPPORTED ++ ++/* For png_struct.apng_flags: */ ++#define PNG_FIRST_FRAME_HIDDEN 0x0001U ++#define PNG_APNG_APP 0x0002U ++#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. + */ +@@ -1880,6 +1891,68 @@ + PNG_EMPTY); + #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 /* PNG_PROGRESSIVE_READ_SUPPORTED */ ++#endif /* PNG_READ_APNG_SUPPORTED */ ++ ++#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 /* PNG_WRITE_APNG_SUPPORTED */ ++#endif /* PNG_APNG_SUPPORTED */ ++ + #ifdef PNG_iCCP_SUPPORTED + /* Routines for checking parts of an ICC profile. */ + #ifdef PNG_READ_iCCP_SUPPORTED +diff -Naru libpng-1.6.54.org/pngread.c libpng-1.6.54/pngread.c +--- libpng-1.6.54.org/pngread.c 2026-01-15 09:54:33.412881873 +0900 ++++ libpng-1.6.54/pngread.c 2026-01-16 19:10:26.174024695 +0900 +@@ -157,16 +157,95 @@ + + 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; + } + ++#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_chunk(png_ptr, info_ptr, length); + } + } + #endif /* SEQUENTIAL_READ */ + ++#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(1, "Reading frame head"); ++ ++ if (!(png_ptr->mode & PNG_HAVE_acTL)) ++ png_error(png_ptr, "Cannot read APNG frame: missing acTL"); ++ ++ /* Do nothing for the main IDAT. */ ++ if (png_ptr->num_frames_read == 0) ++ return; ++ ++ png_read_reset(png_ptr); ++ png_ptr->flags &= ~PNG_FLAG_ROW_INIT; ++ png_ptr->mode &= ~PNG_HAVE_fcTL; ++ ++ have_chunk_after_DAT = 0; ++ for (;;) ++ { ++ png_uint_32 length = png_read_chunk_header(png_ptr); ++ ++ if (png_ptr->chunk_name == png_IDAT) ++ { ++ /* Discard trailing IDATs for the first frame. */ ++ if (have_chunk_after_DAT || png_ptr->num_frames_read > 1) ++ png_error(png_ptr, "Misplaced IDAT in APNG stream"); ++ png_crc_finish(png_ptr, length); ++ } ++ else if (png_ptr->chunk_name == png_fcTL) ++ { ++ png_handle_fcTL(png_ptr, info_ptr, length); ++ have_chunk_after_DAT = 1; ++ } ++ else if (png_ptr->chunk_name == png_fdAT) ++ { ++ png_ensure_sequence_number(png_ptr, length); ++ ++ /* Discard trailing fdATs for all frames except 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, "Misplaced fdAT in APNG stream"); ++ } ++ } ++ else ++ { ++ png_warning(png_ptr, "Ignoring unexpected chunk in APNG sequence"); ++ 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_structrp png_ptr, png_inforp info_ptr) +diff -Naru libpng-1.6.54.org/pngrutil.c libpng-1.6.54/pngrutil.c +--- libpng-1.6.54.org/pngrutil.c 2026-01-15 09:54:33.413881871 +0900 ++++ libpng-1.6.54/pngrutil.c 2026-01-17 10:41:44.972759729 +0900 +@@ -922,6 +922,11 @@ + 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; +@@ -2718,6 +2723,184 @@ + # define png_handle_iTXt NULL + #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_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, "Ignoring misplaced acTL after IDAT"); ++ png_crc_finish(png_ptr, length); ++ return; ++ } ++ else if (png_ptr->mode & PNG_HAVE_acTL) ++ { ++ png_warning(png_ptr, "Ignoring duplicate acTL"); ++ png_crc_finish(png_ptr, length); ++ return; ++ } ++ else if (length != 8) ++ { ++ png_warning(png_ptr, "Ignoring acTL with incorrect length"); ++ 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. */ ++ if (png_set_acTL(png_ptr, info_ptr, num_frames, num_plays)) ++ 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, "Ignoring invalid fcTL after IDAT"); ++ png_crc_finish(png_ptr, length-4); ++ return; ++ } ++ else if (png_ptr->mode & PNG_HAVE_fcTL) ++ { ++ png_warning(png_ptr, "Ignoring duplicate fcTL within one frame"); ++ png_crc_finish(png_ptr, length-4); ++ return; ++ } ++ else if (length != 26) ++ { ++ png_warning(png_ptr, "Ignoring fcTL with incorrect length"); ++ 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_warning(png_ptr, "Ignoring leading fcTL with non-zero frame offset"); ++ return; ++ } ++ ++ if (info_ptr != NULL) ++ { ++ if (png_ptr->num_frames_read == 0 && ++ (width != info_ptr->width || height != info_ptr->height)) ++ { ++ png_warning(png_ptr, ++ "Ignoring leading fcTL with incorrect frame size"); ++ return; ++ } ++ ++ /* 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 called only from png_read_end(), png_read_info(), ++ * and png_push_read_chunk(). This means one of the following: ++ * - The user doesn't want to read this frame. ++ * - 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); ++ PNG_UNUSED(info_ptr) ++} ++ ++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) ++ { ++ /* TODO: Write a more precise message. */ ++ png_error(png_ptr, "Invalid fcTL or fdAT chunk"); ++ } ++ ++ png_crc_read(png_ptr, data, 4); ++ sequence_number = png_get_uint_31(png_ptr, data); ++ ++ if (sequence_number != png_ptr->next_seq_num) ++ { ++ /* TODO: Write a more precise message. */ ++ png_error(png_ptr, "Out-of-order sequence number in fcTL or fdAT"); ++ } ++ ++ png_ptr->next_seq_num++; ++} ++#endif /* PNG_READ_APNG_SUPPORTED */ ++ + #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED + /* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */ + static int +@@ -4200,7 +4383,38 @@ + { + uInt avail_in; + png_bytep buffer; ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_uint_32 bytes_to_skip = 0; ++ ++ while (png_ptr->idat_size == 0 || bytes_to_skip != 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_ptr->num_frames_read == 0) ++ { ++ if (png_ptr->chunk_name != png_IDAT) ++ png_error(png_ptr, "Not enough image data"); ++ } ++ else ++ { ++ if (png_ptr->chunk_name == png_IEND) ++ png_error(png_ptr, "Not enough image data"); ++ if (png_ptr->chunk_name != png_fdAT) ++ { ++ png_warning(png_ptr, ++ "Ignoring unexpected chunk in APNG sequence"); ++ bytes_to_skip = png_ptr->idat_size; ++ continue; ++ } ++ ++ png_ensure_sequence_number(png_ptr, png_ptr->idat_size); + ++ png_ptr->idat_size -= 4; ++ } ++ } ++#else + while (png_ptr->idat_size == 0) + { + png_crc_finish(png_ptr, 0); +@@ -4212,7 +4426,7 @@ + if (png_ptr->chunk_name != png_IDAT) + png_error(png_ptr, "Not enough image data"); + } +- ++#endif /* PNG_READ_APNG_SUPPORTED */ + avail_in = png_ptr->IDAT_read_size; + + if (avail_in > png_chunk_max(png_ptr)) +@@ -4283,6 +4497,9 @@ + + png_ptr->mode |= PNG_AFTER_IDAT; + png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; ++#ifdef PNG_READ_APNG_SUPPORTED ++ png_ptr->num_frames_read++; ++#endif + + if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0) + png_chunk_benign_error(png_ptr, "Extra compressed data"); +@@ -4692,4 +4909,82 @@ + + png_ptr->flags |= PNG_FLAG_ROW_INIT; + } ++ ++#ifdef PNG_READ_APNG_SUPPORTED ++/* This function should be called after the main IDAT sequence has been read ++ * and before a new fdAT is about to be 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; ++} ++ ++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); ++ png_ptr->info_rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, ++ png_ptr->width); ++ if (png_ptr->prev_row) ++ memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); ++} ++ ++#ifdef PNG_PROGRESSIVE_READ_SUPPORTED ++/* Same as png_read_reset(), but for the progressive reader. */ ++void /* PRIVATE */ ++png_progressive_read_reset(png_structp png_ptr) ++{ ++#ifdef PNG_READ_INTERLACING_SUPPORTED ++ /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ ++ ++ /* Start of interlace block */ ++ const int png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; ++ ++ /* Offset to next interlace block */ ++ const int png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; ++ ++ /* Start of interlace block in the y direction */ ++ const int png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; ++ ++ /* Offset to next interlace block in the y direction */ ++ const int png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; ++ ++ 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 ++#endif /* PNG_READ_INTERLACING_SUPPORTED */ ++ { ++ png_ptr->num_rows = png_ptr->height; ++ png_ptr->iwidth = png_ptr->width; ++ } ++ png_ptr->flags &= ~PNG_FLAG_ZSTREAM_ENDED; ++ 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_PROGRESSIVE_READ_SUPPORTED */ ++#endif /* PNG_READ_APNG_SUPPORTED */ + #endif /* READ */ +diff -Naru libpng-1.6.54.org/pngset.c libpng-1.6.54/pngset.c +--- libpng-1.6.54.org/pngset.c 2025-05-11 18:44:02.087040907 +0900 ++++ libpng-1.6.54/pngset.c 2026-01-16 19:22:09.948006831 +0900 +@@ -460,6 +460,13 @@ + 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 ++ /* Assume a non-animated PNG in the beginning. This may be overridden after ++ * seeing an acTL chunk later. ++ */ ++ info_ptr->num_frames = 1; ++#endif + } + + #ifdef PNG_oFFs_SUPPORTED +@@ -1315,6 +1322,145 @@ + } + #endif /* sPLT */ + ++#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, ++ "Ignoring call to png_set_acTL with NULL libpng object args"); ++ 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, ++ "Ignoring call to png_set_fcTL with NULL libpng object args"); ++ return 0; ++ } ++ ++ png_ensure_fcTL_is_valid(png_ptr, width, height, x_offset, y_offset, ++ delay_num, delay_den, dispose_op, blend_op); ++ ++ /* No checking is required for delay_num and delay_den. ++ * They can hold any 16-bit value, including zero. ++ */ ++ ++ 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, ++ "Ignoring wasteful fcTL BLEND_OP_OVER in opaque images"); ++ 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 == 0 || width > PNG_UINT_31_MAX) ++ png_error(png_ptr, "Invalid frame width in fcTL"); ++ if (height == 0 || height > PNG_UINT_31_MAX) ++ png_error(png_ptr, "Invalid frame height in fcTL"); ++ if (x_offset > PNG_UINT_31_MAX || y_offset > PNG_UINT_31_MAX) ++ png_error(png_ptr, "Invalid frame offset in fcTL"); ++ if (width + x_offset > png_ptr->first_frame_width || ++ height + y_offset > png_ptr->first_frame_height) ++ png_error(png_ptr, "Oversized frame in fcTL"); ++ ++ 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_UNUSED(delay_num) ++ PNG_UNUSED(delay_den) ++} ++ ++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; ++ ++ PNG_UNUSED(info_ptr) ++ ++ return 1; ++} ++#endif /* PNG_APNG_SUPPORTED */ ++ + #ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED + static png_byte + check_location(png_const_structrp png_ptr, int location) +diff -Naru libpng-1.6.54.org/pngstruct.h libpng-1.6.54/pngstruct.h +--- libpng-1.6.54.org/pngstruct.h 2025-12-06 20:00:54.866030732 +0900 ++++ libpng-1.6.54/pngstruct.h 2026-01-15 13:50:32.229564906 +0900 +@@ -391,6 +391,27 @@ + 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 /* PNG_APNG_SUPPORTED */ ++ + /* 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 */ +diff -Naru libpng-1.6.54.org/pngtest.c libpng-1.6.54/pngtest.c +--- libpng-1.6.54.org/pngtest.c 2026-01-15 09:54:33.413881871 +0900 ++++ libpng-1.6.54/pngtest.c 2026-01-16 15:31:15.016058178 +0900 +@@ -877,6 +877,10 @@ + int bit_depth, color_type; + user_chunk_info my_user_chunk_data; + int pass, num_passes; ++#ifdef PNG_APNG_SUPPORTED ++ png_uint_32 num_frames; ++ png_uint_32 num_plays; ++#endif + + row_buf = NULL; + error_parameters.file_name = inname; +@@ -1437,6 +1441,22 @@ + } + } + #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; +@@ -1496,6 +1516,111 @@ + 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, ++ frame_width, frame_height, ++ x_offset, y_offset, ++ delay_num, delay_den, ++ dispose_op, blend_op); ++#endif ++ for (pass = 0; pass < num_passes; pass++) ++ { ++# ifdef calc_pass_height ++ png_uint_32 pass_height; ++ ++ if (num_passes == 7) /* interlaced */ ++ { ++ if (PNG_PASS_COLS(frame_width, pass) > 0) ++ pass_height = PNG_PASS_ROWS(frame_height, pass); ++ ++ else ++ pass_height = 0; ++ } ++ ++ else /* not interlaced */ ++ pass_height = frame_height; ++# else ++# define pass_height frame_height ++# endif ++ ++ pngtest_debug1("Writing row data for pass %d", pass); ++ for (y = 0; y < pass_height; y++) ++ { ++#ifndef SINGLE_ROWBUF_ALLOC ++ pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", ++ pass, y); ++ ++ row_buf = (png_bytep)png_malloc(read_ptr, ++ png_get_rowbytes(read_ptr, read_info_ptr)); ++ ++ pngtest_debug2("\t0x%08lx (%lu bytes)", (unsigned long)row_buf, ++ (unsigned long)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 = %u)", 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_passes; pass++) + { + # ifdef calc_pass_height +diff -Naru libpng-1.6.54.org/pngwrite.c libpng-1.6.54/pngwrite.c +--- libpng-1.6.54.org/pngwrite.c 2026-01-15 09:54:33.413881871 +0900 ++++ libpng-1.6.54/pngwrite.c 2026-01-16 16:49:59.704764231 +0900 +@@ -127,6 +127,11 @@ + * 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_WRITE_UNKNOWN_CHUNKS_SUPPORTED + /* Write unknown chunks first; PNG v3 establishes a precedence order + * for colourspace chunks. It is certain therefore that new +@@ -405,6 +410,11 @@ + png_benign_error(png_ptr, "Wrote palette index exceeding num_palette"); + #endif + ++#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) + { +@@ -1517,6 +1527,42 @@ + } + #endif + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++void PNGAPI ++png_write_frame_head(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_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, "Cannot write APNG frame: missing acTL"); ++ ++ 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 info_ptr) ++{ ++ png_debug(1, "in png_write_frame_tail"); ++ ++ png_ptr->num_frames_written++; ++ ++ PNG_UNUSED(info_ptr) ++} ++#endif /* PNG_WRITE_APNG_SUPPORTED */ + + #ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED + /* Initialize the write structure - general purpose utility. */ +diff -Naru libpng-1.6.54.org/pngwutil.c libpng-1.6.54/pngwutil.c +--- libpng-1.6.54.org/pngwutil.c 2026-01-15 09:54:33.414881869 +0900 ++++ libpng-1.6.54/pngwutil.c 2026-01-16 21:11:48.539248758 +0900 +@@ -838,6 +838,11 @@ + /* Write the chunk */ + png_write_complete_chunk(png_ptr, png_IHDR, buf, 13); + ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ png_ptr->first_frame_width = width; ++ png_ptr->first_frame_height = height; ++#endif ++ + if ((png_ptr->do_filter) == PNG_NO_FILTERS) + { + if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || +@@ -1020,7 +1025,17 @@ + #endif + + if (size > 0) ++ { ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ if (png_ptr->num_frames_written == 0) ++ png_write_complete_chunk(png_ptr, png_IDAT, data, size); ++ else ++ png_write_fdAT(png_ptr, data, size); ++#else + png_write_complete_chunk(png_ptr, png_IDAT, data, size); ++#endif /* PNG_WRITE_APNG_SUPPORTED */ ++ } ++ + png_ptr->mode |= PNG_HAVE_IDAT; + + png_ptr->zstream.next_out = data; +@@ -1067,7 +1082,17 @@ + #endif + + if (size > 0) ++ { ++#ifdef PNG_WRITE_APNG_SUPPORTED ++ if (png_ptr->num_frames_written == 0) ++ png_write_complete_chunk(png_ptr, png_IDAT, data, size); ++ else ++ png_write_fdAT(png_ptr, data, size); ++#else + png_write_complete_chunk(png_ptr, png_IDAT, data, size); ++#endif /* PNG_WRITE_APNG_SUPPORTED */ ++ } ++ + png_ptr->zstream.avail_out = 0; + png_ptr->zstream.next_out = NULL; + png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT; +@@ -1969,6 +1994,82 @@ + } + #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_byte buf[8]; ++ ++ 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(buf, num_frames); ++ png_save_uint_32(buf + 4, num_plays); ++ ++ png_write_complete_chunk(png_ptr, png_acTL, buf, (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_byte buf[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, "Non-zero frame offset in leading fcTL"); ++ if (png_ptr->num_frames_written == 0 && ++ (width != png_ptr->first_frame_width || ++ height != png_ptr->first_frame_height)) ++ png_error(png_ptr, "Incorrect frame size in leading fcTL"); ++ ++ /* 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(buf, png_ptr->next_seq_num); ++ png_save_uint_32(buf + 4, width); ++ png_save_uint_32(buf + 8, height); ++ png_save_uint_32(buf + 12, x_offset); ++ png_save_uint_32(buf + 16, y_offset); ++ png_save_uint_16(buf + 20, delay_num); ++ png_save_uint_16(buf + 22, delay_den); ++ buf[24] = dispose_op; ++ buf[25] = blend_op; ++ ++ png_write_complete_chunk(png_ptr, png_fcTL, buf, (png_size_t)26); ++ ++ png_ptr->next_seq_num++; ++} ++ ++void /* PRIVATE */ ++png_write_fdAT(png_structp png_ptr, ++ png_const_bytep data, png_size_t length) ++{ ++ png_byte buf[4]; ++ ++ png_write_chunk_header(png_ptr, png_fdAT, (png_uint_32)(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_WRITE_APNG_SUPPORTED */ ++ + /* Initializes the row writing capability of libpng */ + void /* PRIVATE */ + png_write_start_row(png_structrp png_ptr) +@@ -2822,4 +2923,37 @@ + } + #endif /* WRITE_FLUSH */ + } ++ ++#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, "Incorrect frame size in leading fcTL"); ++ if (width > png_ptr->first_frame_width || ++ height > png_ptr->first_frame_height) ++ png_error(png_ptr, "Oversized frame in fcTL"); ++ ++ 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 /* PNG_WRITE_APNG_SUPPORTED */ + #endif /* WRITE */ +diff -Naru libpng-1.6.54.org/scripts/symbols.def libpng-1.6.54/scripts/symbols.def +--- libpng-1.6.54.org/scripts/symbols.def 2025-01-26 08:07:01.594606745 +0900 ++++ libpng-1.6.54/scripts/symbols.def 2026-01-15 13:50:32.230564905 +0900 +@@ -263,3 +263,23 @@ + png_get_mDCV_fixed @257 + png_set_mDCV @258 + png_set_mDCV_fixed @259 ++ png_get_acTL @260 ++ png_set_acTL @261 ++ png_get_num_frames @262 ++ png_get_num_plays @263 ++ png_get_next_frame_fcTL @264 ++ png_set_next_frame_fcTL @265 ++ png_get_next_frame_width @266 ++ png_get_next_frame_height @267 ++ png_get_next_frame_x_offset @268 ++ png_get_next_frame_y_offset @269 ++ png_get_next_frame_delay_num @270 ++ png_get_next_frame_delay_den @271 ++ png_get_next_frame_dispose_op @272 ++ png_get_next_frame_blend_op @273 ++ png_get_first_frame_is_hidden @274 ++ png_set_first_frame_is_hidden @275 ++ png_read_frame_head @276 ++ png_set_progressive_frame_fn @277 ++ png_write_frame_head @278 ++ png_write_frame_tail @279 diff --git a/scripts/deps/versions b/scripts/deps/versions index 444d51349..5b66cac37 100644 --- a/scripts/deps/versions +++ b/scripts/deps/versions @@ -11,8 +11,8 @@ BROTLI_GZ_HASH=816c96e8e8f193b40151dad7e8ff37b1221d019dbcb9c35cd3fadbfe6477dfec FREETYPE=2.14.1 FREETYPE_GZ_HASH=174d9e53402e1bf9ec7277e22ec199ba3e55a6be2c0740cb18c0ee9850fc8c34 -HARFBUZZ=12.2.0 -HARFBUZZ_GZ_HASH=f63fc519f150465bd0bdafcdf3d0e9c23474f4c474171cd515ea1b3a72c081fb +HARFBUZZ=12.3.2 +HARFBUZZ_GZ_HASH=3ca6621821e19266710ec1a0cb6146fdc832a75828f7c55fea5502c2a810c3c8 LIBBACKTRACE_COMMIT=793921876c981ce49759114d7bb89bb89b2d3a2d LIBBACKTRACE_GZ_HASH=858b1225351052234f7e71f0f36622fc9ad33aac947db7816d0b443ae0dd33ce @@ -20,8 +20,8 @@ LIBBACKTRACE_GZ_HASH=858b1225351052234f7e71f0f36622fc9ad33aac947db7816d0b443ae0d LIBJPEGTURBO=3.1.3 LIBJPEGTURBO_GZ_HASH=075920b826834ac4ddf97661cc73491047855859affd671d52079c6867c1c6c0 -LIBPNG=1.6.53 -LIBPNG_GZ_HASH=da0b045cbb1d06a8fc9696f9441359f70645f280ff24ae453ccb7c722353654f +LIBPNG=1.6.54 +LIBPNG_GZ_HASH=472db714567391842e410090df5a37e0f5b2ec67148a3007678b0482d2ba5219 LIBWEBP=1.6.0 LIBWEBP_GZ_HASH=e4ab7009bf0629fd11982d4c2aa83964cf244cffba7347ecd39019a9e38c4564 @@ -39,19 +39,19 @@ SDL3=3.4.0 SDL3_GZ_HASH=082cbf5f429e0d80820f68dc2b507a94d4cc1b4e70817b119bbb8ec6a69584b8 SDL3_ZIP_HASH=9ac2debb493e0d3e13dbd2729fb91f4bfeb00a0f4dff5e04b73cc9bac276b38d -QT=6.10.1 +QT=6.10.2 QTMINOR=6.10 -QTBASE_XZ_HASH=5a6226f7e23db51fdc3223121eba53f3f5447cf0cc4d6cb82a3a2df7a65d265d -QTBASE_ZIP_HASH=c43f471a808b07fc541528410e94ce89c6745bdc1d744492e19911d35fbf7d33 -QTIMAGEFORMATS_XZ_HASH=498eabdf2381db96f808942b3e3c765f6360fe6c0e9961f0a45ff7a4c68d7a72 -QTIMAGEFORMATS_ZIP_HASH=2d828d8c999fdd18167937c071781c22321c643b04a106c714411c2356cdb26d -QTSVG_XZ_HASH=c02f355a58f3bbcf404a628bf488b6aeb2d84a94c269afdb86f6e529343ab01f -QTSVG_ZIP_HASH=ddd74a417d2397eb085d047a9b6ba52b76e748055817f728fe691f8456035d23 -QTTOOLS_XZ_HASH=8148408380ffea03101a26305c812b612ea30dbc07121e58707601522404d49b -QTTOOLS_ZIP_HASH=db8e49ed50912c3c064a4f9ada7791c09eccec5a8d53463a19608eaab17679f0 -QTTRANSLATIONS_XZ_HASH=8e49a2df88a12c376a479ae7bd272a91cf57ebb4e7c0cf7341b3565df99d2314 -QTTRANSLATIONS_ZIP_HASH=868eb651e395d48ade5932ef2c386e606e054eb5888ebe5284fbd8cb63ed935a -QTWAYLAND_XZ_HASH=49bf6db800227a6b2c971f4c5d03dd1e81297e7ffb296ce4a96437304f27cb13 +QTBASE_XZ_HASH=aeb78d29291a2b5fd53cb55950f8f5065b4978c25fb1d77f627d695ab9adf21e +QTBASE_ZIP_HASH=690e08ce807041150d388b5351de2e591febf0a0bc973b56e1197e2df9a2d96f +QTIMAGEFORMATS_XZ_HASH=8b8f9c718638081e7b3c000e7f31910140b1202a98e98df5d1b496fe6f639d67 +QTIMAGEFORMATS_ZIP_HASH=a407e489ca8d68639530e881aea797f58754e355ca06024a73358bd9cc5fca17 +QTSVG_XZ_HASH=f07ff80f38caf235187200345392ca7479445ddf49a36c3694cd52a735dad6e1 +QTSVG_ZIP_HASH=fd9f4f6e983a55f6b0ba4c49ce13f8b014cd30d12e75a49a478a640462f9bf64 +QTTOOLS_XZ_HASH=1e3d2c07c1fd76d2425c6eaeeaa62ffaff5f79210c4e1a5bc2a6a9db668d5b24 +QTTOOLS_ZIP_HASH=a498357aed659c66aa87ceb556eacab55e3e7d7c9b9599049066de70eb7efa59 +QTTRANSLATIONS_XZ_HASH=b3b3813bc9d76b545716dc8b6e659fa71b6e2bc14569e9fab6dab8b30650a644 +QTTRANSLATIONS_ZIP_HASH=cf5e04a2048c02369f579c1251f61af965f241cde2d69de3db90e6c9f0ee2bf3 +QTWAYLAND_XZ_HASH=391998eb432719df26a6a67d8efdc67f8bf2afdd76c1ee3381ebff4fe7527ee2 CPUINFO_COMMIT=ad0339d52555e0252688c4cba69695e13bf3e383 CPUINFO_GZ_HASH=6621f2e66d6bab2d6833698a3966c0d80cb71544a350fbfa98c5db67a474c1eb