diff options
| author | Keith Whitwell <keithw@vmware.com> | 2010-08-15 16:21:46 +0100 |
|---|---|---|
| committer | Keith Whitwell <keithw@vmware.com> | 2010-08-15 16:25:06 +0100 |
| commit | 510b03539413552a543e25de6b896eb10baf60ae (patch) | |
| tree | b5e38181ef9c7133775a29c17bc41a09c6ac1b3d /src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h | |
| parent | 2d53dc873ea1d9e0e3e4c1cf08a63621661e422f (diff) | |
llvmpipe: reorganize block4 loop, nice speedup
isosurf 95->115 fps just by exchanging the two inner loops in this
function...
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h b/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h index a410c611a3..fcb8e2b05d 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h +++ b/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h @@ -46,19 +46,11 @@ TAG(do_block_4)(struct lp_rasterizer_task *task, int x, int y, const int *c) { - unsigned mask = 0; - int i; + unsigned mask = 0xffff; + int j; - for (i = 0; i < 16; i++) { - int any_negative = 0; - int j; - - for (j = 0; j < NR_PLANES; j++) - any_negative |= (c[j] - 1 + plane[j].step[i]); - - any_negative >>= 31; - - mask |= (~any_negative) & (1 << i); + for (j = 0; j < NR_PLANES; j++) { + mask &= ~build_mask(c[j] - 1, plane[j].step); } /* Now pass to the shader: |