mirror of https://github.com/fltk/fltk
Update bundled libpng from 1.6.42 to 1.6.43
This commit is contained in:
Albrecht Schlosser
parent
1325a257bf
commit
ea96237525
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@ -28,7 +28,7 @@ Current versions of bundled libraries (as of March 13, 2024):
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--------------------------------------------------------------------------
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jpeg jpeg-9f 2024-01-14 1.4.0
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nanosvg 7aeda550a8 [1] 2023-12-02 1.4.0
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png libpng-1.6.42 2024-01-29 1.4.0
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png libpng-1.6.43 2024-02-23 1.4.0
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zlib zlib-1.3.1 2024-01-22 1.4.0
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libdecor 4f2c03d5 [2] 2024-03-04 1.4.0
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--------------------------------------------------------------------------
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@ -199,7 +199,6 @@ Run `make depend' in the zlib folder on a Linux system after
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- pnglibconf.h: Generate on a Linux system and merge (see above).
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- pngprefix.h: Generate on a Linux system and merge (see above).
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- makedepend: Keep this file.
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- png.c: Keep a change labelled with "FLTK"
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Run `make depend' in the png folder on a Linux system after
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the upgrade to update this file.
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47
png/ANNOUNCE
47
png/ANNOUNCE
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@ -1,5 +1,5 @@
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libpng 1.6.40 - June 21, 2023
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=============================
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libpng 1.6.43 - February 23, 2024
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=================================
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This is a public release of libpng, intended for use in production code.
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@ -9,13 +9,13 @@ Files available for download
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Source files with LF line endings (for Unix/Linux):
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* libpng-1.6.40.tar.xz (LZMA-compressed, recommended)
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* libpng-1.6.40.tar.gz
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* libpng-1.6.43.tar.xz (LZMA-compressed, recommended)
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* libpng-1.6.43.tar.gz (deflate-compressed)
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Source files with CRLF line endings (for Windows):
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* lpng1640.7z (LZMA-compressed, recommended)
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* lpng1640.zip
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* lpng1643.7z (LZMA-compressed, recommended)
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* lpng1643.zip (deflate-compressed)
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Other information:
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@ -25,15 +25,36 @@ Other information:
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* TRADEMARK.md
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Changes from version 1.6.39 to version 1.6.40
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Changes from version 1.6.42 to version 1.6.43
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---------------------------------------------
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* Fixed the eXIf chunk multiplicity checks.
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* Fixed a memory leak in pCAL processing.
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* Corrected the validity report about tRNS inside png_get_valid().
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* Fixed various build issues on *BSD, Mac and Windows.
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* Updated the configurations and the scripts for continuous integration.
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* Cleaned up the code, the build scripts, and the documentation.
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* Fixed the row width check in png_check_IHDR().
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This corrected a bug that was specific to the 16-bit platforms,
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and removed a spurious compiler warning from the 64-bit builds.
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(Reported by Jacek Caban; fixed by John Bowler)
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* Added eXIf chunk support to the push-mode reader in pngpread.c.
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(Contributed by Chris Blume)
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* Added contrib/pngexif for the benefit of the users who would like
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to inspect the content of eXIf chunks.
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* Added contrib/conftest/basic.dfa, a basic build-time configuration.
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(Contributed by John Bowler)
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* Fixed a preprocessor condition in pngread.c that broke build-time
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configurations like contrib/conftest/pngcp.dfa.
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(Contributed by John Bowler)
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* Added CMake build support for LoongArch LSX.
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(Contributed by GuXiWei)
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* Fixed a CMake build error that occurred under a peculiar state of the
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dependency tree. This was a regression introduced in libpng-1.6.41.
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(Contributed by Dan Rosser)
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* Marked the installed libpng headers as system headers in CMake.
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(Contributed by Benjamin Buch)
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* Updated the build support for RISCOS.
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(Contributed by Cameron Cawley)
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* Updated the makefiles to allow cross-platform builds to initialize
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conventional make variables like AR and ARFLAGS.
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* Added various improvements to the CI scripts in areas like version
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consistency verification and text linting.
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* Added version consistency verification to pngtest.c also.
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
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32
png/CHANGES
32
png/CHANGES
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@ -6130,7 +6130,7 @@ Version 1.6.40 [June 21, 2023]
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Cleaned up the code, the build scripts, and the documentation.
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Version 1.6.41 [January 24, 2024]
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Added SIMD-optimized code for the Loongarch LSX hardware.
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Added SIMD-optimized code for the LoongArch LSX hardware.
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(Contributed by GuXiWei, JinBo and ZhangLixia)
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Fixed the run-time discovery of MIPS MSA hardware.
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(Contributed by Sui Jingfeng)
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@ -6165,6 +6165,36 @@ Version 1.6.42 [January 29, 2024]
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Fixed the implementation of the macro function png_check_sig().
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This was an API regression, introduced in libpng-1.6.41.
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(Reported by Matthieu Darbois)
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Fixed and updated the libpng manual.
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Version 1.6.43 [February 23, 2024]
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Fixed the row width check in png_check_IHDR().
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This corrected a bug that was specific to the 16-bit platforms,
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and removed a spurious compiler warning from the 64-bit builds.
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(Reported by Jacek Caban; fixed by John Bowler)
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Added eXIf chunk support to the push-mode reader in pngpread.c.
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(Contributed by Chris Blume)
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Added contrib/pngexif for the benefit of the users who would like
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to inspect the content of eXIf chunks.
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Added contrib/conftest/basic.dfa, a basic build-time configuration.
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(Contributed by John Bowler)
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Fixed a preprocessor condition in pngread.c that broke build-time
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configurations like contrib/conftest/pngcp.dfa.
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(Contributed by John Bowler)
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Added CMake build support for LoongArch LSX.
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(Contributed by GuXiWei)
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Fixed a CMake build error that occurred under a peculiar state of the
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dependency tree. This was a regression introduced in libpng-1.6.41.
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(Contributed by Dan Rosser)
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Marked the installed libpng headers as system headers in CMake.
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(Contributed by Benjamin Buch)
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Updated the build support for RISCOS.
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(Contributed by Cameron Cawley)
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Updated the makefiles to allow cross-platform builds to initialize
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conventional make variables like AR and ARFLAGS.
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Added various improvements to the CI scripts in areas like version
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consistency verification and text linting.
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Added version consistency verification to pngtest.c also.
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
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Subscription is required; visit
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12
png/README
12
png/README
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@ -1,4 +1,4 @@
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README for libpng version 1.6.42
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README for libpng version 1.6.43
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================================
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See the note about version numbers near the top of `png.h`.
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@ -142,10 +142,11 @@ Files included in this distribution
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pngwrite.c => High-level write functions
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pngwtran.c => Write data transformations
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pngwutil.c => Write utility functions
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arm/ => Optimized code for the ARM platform
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intel/ => Optimized code for the INTEL-SSE2 platform
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mips/ => Optimized code for the MIPS platform
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powerpc/ => Optimized code for the PowerPC platform
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arm/ => Optimized code for ARM Neon
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intel/ => Optimized code for INTEL SSE2
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loongarch/ => Optimized code for LoongArch LSX
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mips/ => Optimized code for MIPS MSA and MIPS MMI
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powerpc/ => Optimized code for PowerPC VSX
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ci/ => Scripts for continuous integration
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contrib/ => External contributions
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arm-neon/ => Optimized code for the ARM-NEON platform
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@ -158,6 +159,7 @@ Files included in this distribution
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libtests/ => Test programs
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oss-fuzz/ => Files used by the OSS-Fuzz project for fuzz-testing
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libpng
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pngexif/ => Program to inspect the EXIF information in PNG files
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pngminim/ => Minimal decoder, encoder, and progressive decoder
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programs demonstrating the use of pngusr.dfa
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pngminus/ => Simple pnm2png and png2pnm programs
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@ -9,7 +9,7 @@ libpng-manual.txt - A description on how to use and modify libpng
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Based on:
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libpng version 1.6.36, December 2018, through 1.6.42 - January 2024
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libpng version 1.6.36, December 2018, through 1.6.43 - February 2024
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Updated and distributed by Cosmin Truta
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Copyright (c) 2018-2024 Cosmin Truta
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@ -1178,11 +1178,11 @@ where row_pointers is an array of pointers to the pixel data for each row:
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If you know your image size and pixel size ahead of time, you can allocate
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row_pointers prior to calling png_read_png() with
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if (height > PNG_UINT_32_MAX/(sizeof (png_byte)))
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if (height > PNG_UINT_32_MAX / (sizeof (png_bytep)))
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png_error(png_ptr,
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"Image is too tall to process in memory");
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if (width > PNG_UINT_32_MAX/pixel_size)
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if (width > PNG_UINT_32_MAX / pixel_size)
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png_error(png_ptr,
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"Image is too wide to process in memory");
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10
png/libpng.3
10
png/libpng.3
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@ -1,6 +1,6 @@
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.TH LIBPNG 3 "January 29, 2024"
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.TH LIBPNG 3 "February 23, 2024"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.6.42
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libpng \- Portable Network Graphics (PNG) Reference Library 1.6.43
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.SH SYNOPSIS
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\fB#include <png.h>\fP
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@ -528,7 +528,7 @@ libpng-manual.txt - A description on how to use and modify libpng
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Based on:
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libpng version 1.6.36, December 2018, through 1.6.42 - January 2024
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libpng version 1.6.36, December 2018, through 1.6.43 - February 2024
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Updated and distributed by Cosmin Truta
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Copyright (c) 2018-2024 Cosmin Truta
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@ -1697,11 +1697,11 @@ where row_pointers is an array of pointers to the pixel data for each row:
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If you know your image size and pixel size ahead of time, you can allocate
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row_pointers prior to calling png_read_png() with
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if (height > PNG_UINT_32_MAX/(sizeof (png_byte)))
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if (height > PNG_UINT_32_MAX / (sizeof (png_bytep)))
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png_error(png_ptr,
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"Image is too tall to process in memory");
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if (width > PNG_UINT_32_MAX/pixel_size)
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if (width > PNG_UINT_32_MAX / pixel_size)
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png_error(png_ptr,
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"Image is too wide to process in memory");
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@ -1,6 +1,6 @@
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.TH LIBPNGPF 3 "January 29, 2024"
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.TH LIBPNGPF 3 "February 23, 2024"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.6.42
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libpng \- Portable Network Graphics (PNG) Reference Library 1.6.43
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(private functions)
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.SH SYNOPSIS
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@ -1,4 +1,4 @@
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.TH PNG 5 "January 29, 2024"
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.TH PNG 5 "February 23, 2024"
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.SH NAME
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png \- Portable Network Graphics (PNG) format
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43
png/png.c
43
png/png.c
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@ -14,7 +14,7 @@
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#include "pngpriv.h"
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/* Generate a compiler error if there is an old png.h in the search path. */
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typedef png_libpng_version_1_6_42 Your_png_h_is_not_version_1_6_42;
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typedef png_libpng_version_1_6_43 Your_png_h_is_not_version_1_6_43;
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/* Tells libpng that we have already handled the first "num_bytes" bytes
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* of the PNG file signature. If the PNG data is embedded into another
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@ -731,7 +731,7 @@ png_convert_to_rfc1123_buffer(char out[29], png_const_timep ptime)
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{
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size_t pos = 0;
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char number_buf[5] = ""; /* enough for a four-digit year */ /* FLTK Issue #296 */
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char number_buf[5] = {0, 0, 0, 0, 0}; /* enough for a four-digit year */
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# define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string))
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# define APPEND_NUMBER(format, value)\
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@ -794,7 +794,7 @@ png_get_copyright(png_const_structrp png_ptr)
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return PNG_STRING_COPYRIGHT
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#else
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return PNG_STRING_NEWLINE \
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"libpng version 1.6.42" PNG_STRING_NEWLINE \
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"libpng version 1.6.43" PNG_STRING_NEWLINE \
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"Copyright (c) 2018-2024 Cosmin Truta" PNG_STRING_NEWLINE \
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"Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
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PNG_STRING_NEWLINE \
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@ -1821,14 +1821,14 @@ png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
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}
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# ifdef PNG_WARNINGS_SUPPORTED
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else
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{
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char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114 */
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{
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char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114 */
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pos = png_safecat(message, (sizeof message), pos,
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png_format_number(number, number+(sizeof number),
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PNG_NUMBER_FORMAT_x, value));
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pos = png_safecat(message, (sizeof message), pos, "h: "); /* +2 = 116 */
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}
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pos = png_safecat(message, (sizeof message), pos,
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png_format_number(number, number+(sizeof number),
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PNG_NUMBER_FORMAT_x, value));
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pos = png_safecat(message, (sizeof message), pos, "h: "); /* +2 = 116 */
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}
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# endif
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/* The 'reason' is an arbitrary message, allow +79 maximum 195 */
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pos = png_safecat(message, (sizeof message), pos, reason);
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@ -2511,17 +2511,6 @@ png_colorspace_set_rgb_coefficients(png_structrp png_ptr)
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#endif /* COLORSPACE */
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#ifdef __GNUC__
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/* This exists solely to work round a warning from GNU C. */
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static int /* PRIVATE */
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png_gt(size_t a, size_t b)
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{
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return a > b;
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}
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#else
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# define png_gt(a,b) ((a) > (b))
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#endif
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void /* PRIVATE */
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png_check_IHDR(png_const_structrp png_ptr,
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png_uint_32 width, png_uint_32 height, int bit_depth,
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@ -2543,8 +2532,16 @@ png_check_IHDR(png_const_structrp png_ptr,
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error = 1;
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}
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if (png_gt(((width + 7) & (~7U)),
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((PNG_SIZE_MAX
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/* The bit mask on the first line below must be at least as big as a
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* png_uint_32. "~7U" is not adequate on 16-bit systems because it will
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* be an unsigned 16-bit value. Casting to (png_alloc_size_t) makes the
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* type of the result at least as bit (in bits) as the RHS of the > operator
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* which also avoids a common warning on 64-bit systems that the comparison
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* of (png_uint_32) against the constant value on the RHS will always be
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* false.
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*/
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if (((width + 7) & ~(png_alloc_size_t)7) >
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(((PNG_SIZE_MAX
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- 48 /* big_row_buf hack */
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- 1) /* filter byte */
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/ 8) /* 8-byte RGBA pixels */
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25
png/png.h
25
png/png.h
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@ -1,7 +1,7 @@
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.6.42
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* libpng version 1.6.43
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*
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* Copyright (c) 2018-2024 Cosmin Truta
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* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
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@ -15,7 +15,7 @@
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* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.6.35, July 2018:
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* Glenn Randers-Pehrson
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* libpng versions 1.6.36, December 2018, through 1.6.42, January 2024:
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* libpng versions 1.6.36, December 2018, through 1.6.43, February 2024:
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* Cosmin Truta
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* See also "Contributing Authors", below.
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*/
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@ -239,7 +239,7 @@
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* ...
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* 1.5.30 15 10530 15.so.15.30[.0]
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* ...
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* 1.6.42 16 10641 16.so.16.41[.0]
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* 1.6.43 16 10643 16.so.16.43[.0]
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*
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* Henceforth the source version will match the shared-library major and
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* minor numbers; the shared-library major version number will be used for
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@ -255,9 +255,6 @@
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* to the info_ptr or png_ptr members through png.h, and the compiled
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* application is loaded with a different version of the library.
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*
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* DLLNUM will change each time there are forward or backward changes
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* in binary compatibility (e.g., when a new feature is added).
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*
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* See libpng.txt or libpng.3 for more information. The PNG specification
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* is available as a W3C Recommendation and as an ISO/IEC Standard; see
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* <https://www.w3.org/TR/2003/REC-PNG-20031110/>
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@ -278,19 +275,21 @@
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*/
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.6.42"
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#define PNG_LIBPNG_VER_STRING "1.6.43"
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#define PNG_HEADER_VERSION_STRING " libpng version " PNG_LIBPNG_VER_STRING "\n"
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#define PNG_LIBPNG_VER_SONUM 16
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#define PNG_LIBPNG_VER_DLLNUM 16
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/* The versions of shared library builds should stay in sync, going forward */
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#define PNG_LIBPNG_VER_SHAREDLIB 16
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#define PNG_LIBPNG_VER_SONUM PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
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#define PNG_LIBPNG_VER_DLLNUM PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
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/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
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#define PNG_LIBPNG_VER_MAJOR 1
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#define PNG_LIBPNG_VER_MINOR 6
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#define PNG_LIBPNG_VER_RELEASE 42
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#define PNG_LIBPNG_VER_RELEASE 43
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/* This should be zero for a public release, or non-zero for a
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* development version. [Deprecated]
|
||||
* development version.
|
||||
*/
|
||||
#define PNG_LIBPNG_VER_BUILD 0
|
||||
|
||||
|
|
@ -318,7 +317,7 @@
|
|||
* From version 1.0.1 it is:
|
||||
* XXYYZZ, where XX=major, YY=minor, ZZ=release
|
||||
*/
|
||||
#define PNG_LIBPNG_VER 10641 /* 1.6.42 */
|
||||
#define PNG_LIBPNG_VER 10643 /* 1.6.43 */
|
||||
|
||||
/* Library configuration: these options cannot be changed after
|
||||
* the library has been built.
|
||||
|
|
@ -428,7 +427,7 @@ extern "C" {
|
|||
/* This triggers a compiler error in png.c, if png.c and png.h
|
||||
* do not agree upon the version number.
|
||||
*/
|
||||
typedef char* png_libpng_version_1_6_42;
|
||||
typedef char* png_libpng_version_1_6_43;
|
||||
|
||||
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
|
||||
*
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
|
||||
/* pngconf.h - machine-configurable file for libpng
|
||||
*
|
||||
* libpng version 1.6.42
|
||||
* libpng version 1.6.43
|
||||
*
|
||||
* Copyright (c) 2018-2024 Cosmin Truta
|
||||
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
|
||||
|
|
|
|||
|
|
@ -9,7 +9,7 @@
|
|||
|
||||
/* pnglibconf.h - library build configuration */
|
||||
|
||||
/* libpng version 1.6.42 */
|
||||
/* libpng version 1.6.43 */
|
||||
|
||||
/* Copyright (c) 2018-2024 Cosmin Truta */
|
||||
/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
|
||||
|
|
|
|||
|
|
@ -294,6 +294,14 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
|
|||
png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length);
|
||||
}
|
||||
|
||||
#endif
|
||||
#ifdef PNG_READ_eXIf_SUPPORTED
|
||||
else if (png_ptr->chunk_name == png_eXIf)
|
||||
{
|
||||
PNG_PUSH_SAVE_BUFFER_IF_FULL
|
||||
png_handle_eXIf(png_ptr, info_ptr, png_ptr->push_length);
|
||||
}
|
||||
|
||||
#endif
|
||||
#ifdef PNG_READ_sRGB_SUPPORTED
|
||||
else if (chunk_name == png_sRGB)
|
||||
|
|
|
|||
|
|
@ -56,13 +56,6 @@
|
|||
#define png_do_read_interlace fltk_png_do_read_interlace
|
||||
#define png_do_write_interlace fltk_png_do_write_interlace
|
||||
#define png_read_filter_row fltk_png_read_filter_row
|
||||
#define png_read_filter_row_up_neon fltk_png_read_filter_row_up_neon
|
||||
#define png_read_filter_row_sub3_neon fltk_png_read_filter_row_sub3_neon
|
||||
#define png_read_filter_row_sub4_neon fltk_png_read_filter_row_sub4_neon
|
||||
#define png_read_filter_row_avg3_neon fltk_png_read_filter_row_avg3_neon
|
||||
#define png_read_filter_row_avg4_neon fltk_png_read_filter_row_avg4_neon
|
||||
#define png_read_filter_row_paeth3_neon fltk_png_read_filter_row_paeth3_neon
|
||||
#define png_read_filter_row_paeth4_neon fltk_png_read_filter_row_paeth4_neon
|
||||
#define png_write_find_filter fltk_png_write_find_filter
|
||||
#define png_read_IDAT_data fltk_png_read_IDAT_data
|
||||
#define png_read_finish_IDAT fltk_png_read_finish_IDAT
|
||||
|
|
@ -166,8 +159,4 @@
|
|||
#define png_safe_warning fltk_png_safe_warning
|
||||
#define png_safe_execute fltk_png_safe_execute
|
||||
#define png_image_error fltk_png_image_error
|
||||
#define png_init_filter_functions_neon fltk_png_init_filter_functions_neon
|
||||
#define png_check_keyword fltk_png_check_keyword
|
||||
#define png_riffle_palette_neon fltk_png_riffle_palette_neon
|
||||
#define png_do_expand_palette_rgba8_neon fltk_png_do_expand_palette_rgba8_neon
|
||||
#define png_do_expand_palette_rgb8_neon fltk_png_do_expand_palette_rgb8_neon
|
||||
|
|
|
|||
|
|
@ -568,7 +568,11 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
|
|||
#endif
|
||||
|
||||
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
|
||||
if (png_ptr->transformations || png_ptr->num_palette_max >= 0)
|
||||
if (png_ptr->transformations
|
||||
# ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
|
||||
|| png_ptr->num_palette_max >= 0
|
||||
# endif
|
||||
)
|
||||
png_do_read_transformations(png_ptr, &row_info);
|
||||
#endif
|
||||
|
||||
|
|
|
|||
|
|
@ -297,14 +297,13 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
|
|||
|
||||
output_gamma = translate_gamma_flags(png_ptr, output_gamma, 1/*screen*/);
|
||||
|
||||
/* Validate the value to ensure it is in a reasonable range. The value
|
||||
/* Validate the value to ensure it is in a reasonable range. The value
|
||||
* is expected to be 1 or greater, but this range test allows for some
|
||||
* viewing correction values. The intent is to weed out users of this API
|
||||
* who use the inverse of the gamma value accidentally! Since some of these
|
||||
* values are reasonable this may have to be changed:
|
||||
* viewing correction values. The intent is to weed out the API users
|
||||
* who might use the inverse of the gamma value accidentally!
|
||||
*
|
||||
* 1.6.x: changed from 0.07..3 to 0.01..100 (to accommodate the optimal 16-bit
|
||||
* gamma of 36, and its reciprocal.)
|
||||
* In libpng 1.6.0, we changed from 0.07..3 to 0.01..100, to accommodate
|
||||
* the optimal 16-bit gamma of 36 and its reciprocal.
|
||||
*/
|
||||
if (output_gamma < 1000 || output_gamma > 10000000)
|
||||
png_error(png_ptr, "output gamma out of expected range");
|
||||
|
|
@ -441,7 +440,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
|
|||
int i;
|
||||
|
||||
png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr,
|
||||
(png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
|
||||
(png_alloc_size_t)num_palette);
|
||||
for (i = 0; i < num_palette; i++)
|
||||
png_ptr->quantize_index[i] = (png_byte)i;
|
||||
}
|
||||
|
|
@ -458,7 +457,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
|
|||
|
||||
/* Initialize an array to sort colors */
|
||||
png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr,
|
||||
(png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
|
||||
(png_alloc_size_t)num_palette);
|
||||
|
||||
/* Initialize the quantize_sort array */
|
||||
for (i = 0; i < num_palette; i++)
|
||||
|
|
@ -592,11 +591,9 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
|
|||
|
||||
/* Initialize palette index arrays */
|
||||
png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
|
||||
(png_alloc_size_t)((png_uint_32)num_palette *
|
||||
(sizeof (png_byte))));
|
||||
(png_alloc_size_t)num_palette);
|
||||
png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
|
||||
(png_alloc_size_t)((png_uint_32)num_palette *
|
||||
(sizeof (png_byte))));
|
||||
(png_alloc_size_t)num_palette);
|
||||
|
||||
/* Initialize the sort array */
|
||||
for (i = 0; i < num_palette; i++)
|
||||
|
|
@ -761,12 +758,11 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
|
|||
size_t num_entries = ((size_t)1 << total_bits);
|
||||
|
||||
png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr,
|
||||
(png_alloc_size_t)(num_entries * (sizeof (png_byte))));
|
||||
(png_alloc_size_t)(num_entries));
|
||||
|
||||
distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)(num_entries *
|
||||
(sizeof (png_byte))));
|
||||
distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)num_entries);
|
||||
|
||||
memset(distance, 0xff, num_entries * (sizeof (png_byte)));
|
||||
memset(distance, 0xff, num_entries);
|
||||
|
||||
for (i = 0; i < num_palette; i++)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue