diff options
author | Brian <brian.paul@tungstengraphics.com> | 2007-06-20 15:22:39 -0600 |
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committer | Brian <brian.paul@tungstengraphics.com> | 2007-06-20 15:22:39 -0600 |
commit | acef7c750113e34a92fd00c74308443d8fb3f974 (patch) | |
tree | ecaf285d41b96b81fea800c90d4cc7fc53a4b0e8 /src/mesa/pipe/softpipe | |
parent | 7658a0208aa31f1443be6eaa720a383b34e2bbb3 (diff) |
only blend active pixels in the quad
Diffstat (limited to 'src/mesa/pipe/softpipe')
-rw-r--r-- | src/mesa/pipe/softpipe/sp_tile_blend.c | 191 |
1 files changed, 98 insertions, 93 deletions
diff --git a/src/mesa/pipe/softpipe/sp_tile_blend.c b/src/mesa/pipe/softpipe/sp_tile_blend.c index 40af57149d..9ac0ccbfa5 100644 --- a/src/mesa/pipe/softpipe/sp_tile_blend.c +++ b/src/mesa/pipe/softpipe/sp_tile_blend.c @@ -64,101 +64,106 @@ blend_quad(struct quad_stage *qs, struct quad_header *quad) * for all four pixels in the quad at once. */ for (j = 0; j < QUAD_SIZE; j++) { - switch (softpipe->blend.rgb_src_factor) { - case PIPE_BLENDFACTOR_ONE: - srcTerm[0] = srcTerm[1] = srcTerm[2] = 1.0; - break; - case PIPE_BLENDFACTOR_SRC_ALPHA: - srcTerm[0] = srcTerm[1] = srcTerm[2] = quad->outputs.color[3][j]; - break; - case PIPE_BLENDFACTOR_ZERO: - srcTerm[0] = srcTerm[1] = srcTerm[2] = 0.0; - break; - /* XXX fill in remaining terms */ - default: - abort(); - } - - switch (softpipe->blend.alpha_src_factor) { - case PIPE_BLENDFACTOR_ONE: - srcTerm[3] = 1.0; - break; - case PIPE_BLENDFACTOR_SRC_ALPHA: - srcTerm[3] = quad->outputs.color[3][j]; - break; - case PIPE_BLENDFACTOR_ZERO: - srcTerm[3] = 0.0; - break; - /* XXX fill in remaining terms */ - default: - abort(); - } - - switch (softpipe->blend.rgb_dst_factor) { - case PIPE_BLENDFACTOR_ONE: - dstTerm[0] = dstTerm[1] = dstTerm[2] = 1.0; - break; - case PIPE_BLENDFACTOR_INV_SRC_ALPHA: - dstTerm[0] = dstTerm[1] = dstTerm[2] = 1.0 - quad->outputs.color[3][j]; - break; - case PIPE_BLENDFACTOR_ZERO: - dstTerm[0] = dstTerm[1] = dstTerm[2] = 0.0; - break; - /* XXX fill in remaining terms */ - default: - abort(); - } - - switch (softpipe->blend.alpha_dst_factor) { - case PIPE_BLENDFACTOR_ONE: - dstTerm[3] = 1.0; - break; - case PIPE_BLENDFACTOR_INV_SRC_ALPHA: - dstTerm[3] = 1.0 - quad->outputs.color[3][j]; - break; - case PIPE_BLENDFACTOR_ZERO: - dstTerm[3] = 0.0; - break; - /* XXX fill in remaining terms */ - default: - abort(); - } - switch (softpipe->blend.rgb_func) { - case PIPE_BLEND_ADD: - quad->outputs.color[0][j] = source[0][j] * srcTerm[0] + dest[0][j] * dstTerm[0]; - quad->outputs.color[1][j] = source[1][j] * srcTerm[1] + dest[1][j] * dstTerm[1]; - quad->outputs.color[2][j] = source[2][j] * srcTerm[2] + dest[2][j] * dstTerm[2]; - quad->outputs.color[3][j] = source[3][j] * srcTerm[3] + dest[3][j] * dstTerm[3]; - break; - case PIPE_BLEND_SUBTRACT: - quad->outputs.color[0][j] = source[0][j] * srcTerm[0] - dest[0][j] * dstTerm[0]; - quad->outputs.color[1][j] = source[1][j] * srcTerm[1] - dest[1][j] * dstTerm[1]; - quad->outputs.color[2][j] = source[2][j] * srcTerm[2] - dest[2][j] * dstTerm[2]; - quad->outputs.color[3][j] = source[3][j] * srcTerm[3] - dest[3][j] * dstTerm[3]; - break; - case PIPE_BLEND_REVERSE_SUBTRACT: - quad->outputs.color[0][j] = dest[0][j] * dstTerm[0] - source[0][j] * srcTerm[0]; - quad->outputs.color[1][j] = dest[1][j] * dstTerm[1] - source[1][j] * srcTerm[1]; - quad->outputs.color[2][j] = dest[2][j] * dstTerm[2] - source[2][j] * srcTerm[2]; - quad->outputs.color[3][j] = dest[3][j] * dstTerm[3] - source[3][j] * srcTerm[3]; - break; - case PIPE_BLEND_MIN: - quad->outputs.color[0][j] = MIN2(dest[0][j], source[0][j]); - quad->outputs.color[1][j] = MIN2(dest[1][j], source[1][j]); - quad->outputs.color[2][j] = MIN2(dest[2][j], source[2][j]); - quad->outputs.color[3][j] = MIN2(dest[3][j], source[3][j]); - break; - case PIPE_BLEND_MAX: - quad->outputs.color[0][j] = MAX2(dest[0][j], source[0][j]); - quad->outputs.color[1][j] = MAX2(dest[1][j], source[1][j]); - quad->outputs.color[2][j] = MAX2(dest[2][j], source[2][j]); - quad->outputs.color[3][j] = MAX2(dest[3][j], source[3][j]); - break; - default: - abort(); + /* if this pixel in the quad is alive */ + if (quad->mask & (1 << j)) { + + switch (softpipe->blend.rgb_src_factor) { + case PIPE_BLENDFACTOR_ONE: + srcTerm[0] = srcTerm[1] = srcTerm[2] = 1.0; + break; + case PIPE_BLENDFACTOR_SRC_ALPHA: + srcTerm[0] = srcTerm[1] = srcTerm[2] = quad->outputs.color[3][j]; + break; + case PIPE_BLENDFACTOR_ZERO: + srcTerm[0] = srcTerm[1] = srcTerm[2] = 0.0; + break; + /* XXX fill in remaining terms */ + default: + abort(); + } + + switch (softpipe->blend.alpha_src_factor) { + case PIPE_BLENDFACTOR_ONE: + srcTerm[3] = 1.0; + break; + case PIPE_BLENDFACTOR_SRC_ALPHA: + srcTerm[3] = quad->outputs.color[3][j]; + break; + case PIPE_BLENDFACTOR_ZERO: + srcTerm[3] = 0.0; + break; + /* XXX fill in remaining terms */ + default: + abort(); + } + + switch (softpipe->blend.rgb_dst_factor) { + case PIPE_BLENDFACTOR_ONE: + dstTerm[0] = dstTerm[1] = dstTerm[2] = 1.0; + break; + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: + dstTerm[0] = dstTerm[1] = dstTerm[2] = 1.0 - quad->outputs.color[3][j]; + break; + case PIPE_BLENDFACTOR_ZERO: + dstTerm[0] = dstTerm[1] = dstTerm[2] = 0.0; + break; + /* XXX fill in remaining terms */ + default: + abort(); + } + + switch (softpipe->blend.alpha_dst_factor) { + case PIPE_BLENDFACTOR_ONE: + dstTerm[3] = 1.0; + break; + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: + dstTerm[3] = 1.0 - quad->outputs.color[3][j]; + break; + case PIPE_BLENDFACTOR_ZERO: + dstTerm[3] = 0.0; + break; + /* XXX fill in remaining terms */ + default: + abort(); + } + + switch (softpipe->blend.rgb_func) { + case PIPE_BLEND_ADD: + quad->outputs.color[0][j] = source[0][j] * srcTerm[0] + dest[0][j] * dstTerm[0]; + quad->outputs.color[1][j] = source[1][j] * srcTerm[1] + dest[1][j] * dstTerm[1]; + quad->outputs.color[2][j] = source[2][j] * srcTerm[2] + dest[2][j] * dstTerm[2]; + quad->outputs.color[3][j] = source[3][j] * srcTerm[3] + dest[3][j] * dstTerm[3]; + break; + case PIPE_BLEND_SUBTRACT: + quad->outputs.color[0][j] = source[0][j] * srcTerm[0] - dest[0][j] * dstTerm[0]; + quad->outputs.color[1][j] = source[1][j] * srcTerm[1] - dest[1][j] * dstTerm[1]; + quad->outputs.color[2][j] = source[2][j] * srcTerm[2] - dest[2][j] * dstTerm[2]; + quad->outputs.color[3][j] = source[3][j] * srcTerm[3] - dest[3][j] * dstTerm[3]; + break; + case PIPE_BLEND_REVERSE_SUBTRACT: + quad->outputs.color[0][j] = dest[0][j] * dstTerm[0] - source[0][j] * srcTerm[0]; + quad->outputs.color[1][j] = dest[1][j] * dstTerm[1] - source[1][j] * srcTerm[1]; + quad->outputs.color[2][j] = dest[2][j] * dstTerm[2] - source[2][j] * srcTerm[2]; + quad->outputs.color[3][j] = dest[3][j] * dstTerm[3] - source[3][j] * srcTerm[3]; + break; + case PIPE_BLEND_MIN: + quad->outputs.color[0][j] = MIN2(dest[0][j], source[0][j]); + quad->outputs.color[1][j] = MIN2(dest[1][j], source[1][j]); + quad->outputs.color[2][j] = MIN2(dest[2][j], source[2][j]); + quad->outputs.color[3][j] = MIN2(dest[3][j], source[3][j]); + break; + case PIPE_BLEND_MAX: + quad->outputs.color[0][j] = MAX2(dest[0][j], source[0][j]); + quad->outputs.color[1][j] = MAX2(dest[1][j], source[1][j]); + quad->outputs.color[2][j] = MAX2(dest[2][j], source[2][j]); + quad->outputs.color[3][j] = MAX2(dest[3][j], source[3][j]); + break; + default: + abort(); + } } - } /* loop over quads */ + } /* loop over quad's pixels*/ /* pass blended quad to next stage */ qs->next->run(qs->next, quad); |