From aa761b160520479efcf09d12ae4a161fc2f872f7 Mon Sep 17 00:00:00 2001 From: Brian Date: Fri, 1 Feb 2008 16:54:46 -0700 Subject: Cell: comment about emit_quad() mask --- src/mesa/pipe/cell/spu/spu_tri.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/mesa/pipe') diff --git a/src/mesa/pipe/cell/spu/spu_tri.c b/src/mesa/pipe/cell/spu/spu_tri.c index f0758c42e73..83bb247b22e 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 ) -- cgit v1.2.3