diff options
| author | José Fonseca <jfonseca@vmware.com> | 2010-06-01 16:28:45 +0100 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2010-06-01 16:39:03 +0100 |
| commit | 149cb7682e37ce719d693f120e68dde60ba73bdf (patch) | |
| tree | 05c5bdefb18624cf2f3f2f0f9035e7147426bce5 /src/gallium/drivers/llvmpipe/lp_setup_tri.c | |
| parent | abe4f3d1aa68aec70d329447abc890b3eaaba9cb (diff) | |
llvmpipe: Don't waste time interpolating unused input channels.
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_setup_tri.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_tri.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c index 0fc4dd665e..b560061542 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c @@ -208,22 +208,26 @@ static void setup_tri_coefficients( struct lp_setup_context *setup, case LP_INTERP_CONSTANT: if (setup->flatshade_first) { for (i = 0; i < NUM_CHANNELS; i++) - constant_coef(setup, tri, slot+1, v1[vert_attr][i], i); + if (setup->fs.input[slot].usage_mask & (1 << i)) + constant_coef(setup, tri, slot+1, v1[vert_attr][i], i); } else { for (i = 0; i < NUM_CHANNELS; i++) - constant_coef(setup, tri, slot+1, v3[vert_attr][i], i); + if (setup->fs.input[slot].usage_mask & (1 << i)) + constant_coef(setup, tri, slot+1, v3[vert_attr][i], i); } break; case LP_INTERP_LINEAR: for (i = 0; i < NUM_CHANNELS; i++) - linear_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); + if (setup->fs.input[slot].usage_mask & (1 << i)) + linear_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); break; case LP_INTERP_PERSPECTIVE: for (i = 0; i < NUM_CHANNELS; i++) - perspective_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); + if (setup->fs.input[slot].usage_mask & (1 << i)) + perspective_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); break; case LP_INTERP_POSITION: |