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| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-04-23 11:23:12 -0600 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-04-23 11:38:40 -0600 |
| commit | 2221cb9f74ceee826efb09840188711f408e5428 (patch) | |
| tree | 9e9e8ec11dedad711bcbe4c090f8232c0373fabc /src/gallium/drivers/softpipe/sp_quad_blend.c | |
| parent | 76d39f0c19ee0673b65d6ad09ab338c8b750251a (diff) | |
gallium: fix broken PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_quad_blend.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_quad_blend.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/src/gallium/drivers/softpipe/sp_quad_blend.c b/src/gallium/drivers/softpipe/sp_quad_blend.c index 802472df45..ca266ec8e6 100644 --- a/src/gallium/drivers/softpipe/sp_quad_blend.c +++ b/src/gallium/drivers/softpipe/sp_quad_blend.c @@ -294,11 +294,12 @@ blend_quad(struct quad_stage *qs, struct quad_header *quad) case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: { const float *alpha = quadColor[3]; - float diff[4]; + float diff[4], temp[4]; VEC4_SUB(diff, one, dest[3]); - VEC4_MIN(source[0], alpha, diff); /* R */ - VEC4_MIN(source[1], alpha, diff); /* G */ - VEC4_MIN(source[2], alpha, diff); /* B */ + VEC4_MIN(temp, alpha, diff); + VEC4_MUL(source[0], quadColor[0], temp); /* R */ + VEC4_MUL(source[1], quadColor[1], temp); /* G */ + VEC4_MUL(source[2], quadColor[2], temp); /* B */ } break; case PIPE_BLENDFACTOR_CONST_COLOR: @@ -426,12 +427,8 @@ blend_quad(struct quad_stage *qs, struct quad_header *quad) VEC4_MUL(source[3], quadColor[3], dest[3]); /* A */ break; case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: - { - const float *alpha = quadColor[3]; - float diff[4]; - VEC4_SUB(diff, one, dest[3]); - VEC4_MIN(source[3], alpha, diff); /* A */ - } + /* multiply alpha by 1.0 */ + VEC4_COPY(source[3], quadColor[3]); /* A */ break; case PIPE_BLENDFACTOR_CONST_COLOR: /* fall-through */ |