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| author | Brian <brian.paul@tungstengraphics.com> | 2008-02-01 16:54:46 -0700 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2008-02-01 16:54:46 -0700 |
| commit | aa761b160520479efcf09d12ae4a161fc2f872f7 (patch) | |
| tree | 3ee56e7fcc893df18261b4e3dc4f37e5df78670f /src/mesa | |
| parent | 44d32693562e2fb83572bd10e4d489a7cb6f74f3 (diff) | |
Cell: comment about emit_quad() mask
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/pipe/cell/spu/spu_tri.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/pipe/cell/spu/spu_tri.c b/src/mesa/pipe/cell/spu/spu_tri.c index f0758c42e7..83bb247b22 100644 --- a/src/mesa/pipe/cell/spu/spu_tri.c +++ b/src/mesa/pipe/cell/spu/spu_tri.c @@ -277,6 +277,9 @@ do_depth_test(int x, int y, mask_t quadmask) /** * Emit a quad (pass to next stage). No clipping is done. + * Note: about 1/5 to 1/7 of the time, mask is zero and this function + * should be skipped. But adding the test for that slows things down + * overall. */ static INLINE void emit_quad( int x, int y, mask_t mask ) |