| commit | fcc0263191d54846ea4c51bd26268c9e455f9051 | [log] [tgz] |
|---|---|---|
| author | John Bowler <jbowler@acm.org> | Thu Nov 03 18:31:00 2011 -0500 |
| committer | Glenn Randers-Pehrson <glennrp at users.sourceforge.net> | Thu Nov 03 18:31:00 2011 -0500 |
| tree | 4bb4628cff4aaf1270908efbbc3cce8642e033dc | |
| parent | 1d8b75550fcd072f7692c3a50debde6ad9a77bce [diff] |
[libpng15] Paeth filter speed improvements from work by Siarhei Siamashka. This changes the 'Paeth' reconstruction function to improve the GCC code generation on x86. The changes are only part of the suggested ones; just the changes that definitely improve speed and remain simple. The changes also slightly increase the clarity of the code. In a
