diff options
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_quad_alpha_test.c | 4 | ||||
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_quad_depth_test.c | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/pipe/softpipe/sp_quad_alpha_test.c b/src/mesa/pipe/softpipe/sp_quad_alpha_test.c index 0059b3abf4f..e0f7225d748 100644 --- a/src/mesa/pipe/softpipe/sp_quad_alpha_test.c +++ b/src/mesa/pipe/softpipe/sp_quad_alpha_test.c @@ -23,6 +23,10 @@ alpha_test_quad(struct quad_stage *qs, struct quad_header *quad) quad->mask = 0x0; break; case PIPE_FUNC_LESS: + /* + * If quad->mask were an array [4] we could do this SIMD-style: + * quad->mask &= (quad->outputs.color[3] <= vec4(ref)); + */ for (j = 0; j < QUAD_SIZE; j++) { if (quad->mask & (1 << j)) { if (quad->outputs.color[3][j] >= ref) { diff --git a/src/mesa/pipe/softpipe/sp_quad_depth_test.c b/src/mesa/pipe/softpipe/sp_quad_depth_test.c index b72bbac0d4a..fcd6a22e1d3 100644 --- a/src/mesa/pipe/softpipe/sp_quad_depth_test.c +++ b/src/mesa/pipe/softpipe/sp_quad_depth_test.c @@ -54,6 +54,7 @@ depth_test_quad(struct quad_stage *qs, struct quad_header *quad) break; case PIPE_FUNC_LESS: /* Note this is pretty much a single sse or cell instruction. + * Like this: quad->mask &= (quad->outputs.depth < zzzz); */ for (j = 0; j < QUAD_SIZE; j++) { if (quad->outputs.depth[j] < zzzz[j]) |