| OLD | NEW |
|---|
| 1 Name: libpng | 1 Name: libpng |
| 2 URL: http://libpng.org/ | 2 URL: http://libpng.org/ |
| 3 Version: 1.6.22 | 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 1.6.22, stripped all unneeded files. | 9 Updated to 1.6.22, stripped all unneeded files. |
| 10 | 10 |
| 11 - Turn on SSE optimizations for Intel platforms by running: | 11 - Turn on SSE optimizations for Intel platforms by running: |
| 12 "patch -i contrib/intel/intel_sse.patch -p1" | 12 "patch -i contrib/intel/intel_sse.patch -p1" |
| 13 - Use custom configuration file pnglibconf.h, which turns off all features that | 13 - Use custom configuration file pnglibconf.h, which turns off all features that |
| 14 are not in use. | 14 are not in use. |
| 15 - Use custom prefix file pngprefix.h, which avoids namespace conflicts with | 15 - Use custom prefix file pngprefix.h, which avoids namespace conflicts with |
| 16 pdfium's copy of libpng. | 16 pdfium's copy of libpng. |
| 17 - Configures custom png chunk user limits (crbug.com/117369) in pnglibconf.h. | 17 - Configures custom png chunk user limits (crbug.com/117369) in pnglibconf.h. |
| 18 - Fix for potential memory leak from upstream: | 18 - Fix for potential memory leak from upstream: |
| 19 https://github.com/glennrp/libpng/commit/8d1672537324d99c6e65eb78fc1678cdd46f7
5bd | 19 https://github.com/glennrp/libpng/commit/8d1672537324d99c6e65eb78fc1678cdd46f7
5bd |
| 20 https://github.com/glennrp/libpng/commit/6c7459e455a4f7d95c7700e9326bb12396e6e
b1f | 20 https://github.com/glennrp/libpng/commit/6c7459e455a4f7d95c7700e9326bb12396e6e
b1f |
| 21 - Fix for handling empty first IDAT chunk from upstream: | 21 - Fix for handling empty first IDAT chunk from upstream: |
| 22 https://github.com/glennrp/libpng/commit/3f46c67c6989f480bd932428aa1705f6625db
abf | 22 https://github.com/glennrp/libpng/commit/3f46c67c6989f480bd932428aa1705f6625db
abf |
| 23 https://github.com/glennrp/libpng/commit/81f0273d54aa9de663253b197b3c8228d659c
c36 | 23 https://github.com/glennrp/libpng/commit/81f0273d54aa9de663253b197b3c8228d659c
c36 |
| 24 - Fix performance regression in png encoding (and overflow handling in filter he
uristic) | 24 - Fix performance regression in png encoding (and overflow handling in filter he
uristic) |
| 25 from upstream: | 25 from upstream (crbug.com/619850): |
| 26 https://github.com/glennrp/libpng/commit/9c04f57cabbf736e91b831858d0eeecca703e
abf | 26 https://github.com/glennrp/libpng/commit/9c04f57cabbf736e91b831858d0eeecca703e
abf |
| 27 https://github.com/glennrp/libpng/commit/29135161d74e5f6f640ec1fc2ab3ceebc34e3
39b |
| 28 *** Note that this second commit (29135161) has been reverted in upstream. Th
ey |
| 29 feel that it is unnecessary. It increases code size (slightly) and changi
ng |
| 30 the compiler flags might accomplish the same optimization. |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2132783002:
Fix png encoding performance regressions - downstream diff (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master