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| author | Sami Liedes <sami.liedes@iki.fi> | 2013-07-29 13:40:08 +0300 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2014-01-18 18:30:43 +0100 |
| commit | 0e65cec6b4f5ca21f3964a18b4a3f35a32a6762f (patch) | |
| tree | e8d3901b4ca4ebef77c4db24a095eafcb39e98e5 /src/gui/image | |
| parent | 18c04d0ab6debceea406a77676913f826a093153 (diff) | |
Optimize blend_transformed_tiled_argb().
Profiling indicates that this function is one of two hot spots causing
a noticeable latency when changing KDE virtual desktops.
Instead of computing two modulos per pixel in the inner loop, it is
possible to compute the modulos outside the loop and compute a modulo
sum in the inner loop for a reasonable speedup.
Change-Id: Ic4217b7686e031d7673b3e10aa977dae263096dc
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Diffstat (limited to 'src/gui/image')
0 files changed, 0 insertions, 0 deletions