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Issue 2021403002: Update libpng to 1.6.22 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rearrange pnglibconf.h Created 4 years, 6 months ago
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1 Name: libpng 1 Name: libpng
2 URL: http://libpng.org/ 2 URL: http://libpng.org/
3 Version: 1.2.56 3 Version: 1.6.22
4 Security Critical: yes 4 Security Critical: yes
5 License: libpng license 5 License: libpng license
6 License Android Compatible: yes 6 License Android Compatible: yes
7 7
8 Description: 8 Description:
9 Updated to 1.2.56, no changes to the source files but all unneeded files 9 Updated to 1.6.22, stripped all unneeded files.
10 stripped.
11 10
12 Our custom configuration options are defined in pngusr.h. This was previously 11 - Turn on SSE optimizations for Intel platforms by running:
13 called mozpngconf.h, which was copied from Mozilla and modified by Apple (hence 12 "patch -i contrib/intel/intel_sse.patch -p1"
14 the wk_* names): 13 - Use custom configuration file pnglibconf.h, which turns off all features that
15 - Unset PNG_NO_READ_PACK on Android in pngusr.h, required by freetype to support 14 are not in use.
16 color glyphs. 15 - Use custom prefix file pngprefix.h, which avoids namespace conflicts with
17 - Configure PNG chunk user limits (crbug.com/117369) 16 pdfium's copy of libpng.
17 - Configures custom png chunk user limits (crbug.com/117369) in pnglibconf.h.
18 - Fix for potential memory leak from upstream:
19 https://github.com/glennrp/libpng/commit/8d1672537324d99c6e65eb78fc1678cdd46f7 5bd
20 https://github.com/glennrp/libpng/commit/6c7459e455a4f7d95c7700e9326bb12396e6e b1f
21 - Fix for handling empty first IDAT chunk from upstream:
22 https://github.com/glennrp/libpng/commit/3f46c67c6989f480bd932428aa1705f6625db abf
23 https://github.com/glennrp/libpng/commit/81f0273d54aa9de663253b197b3c8228d659c c36
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