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gallium: fix broken PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE

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This commit is contained in:
Brian Paul
2008-04-23 11:23:12 -06:00
parent 76d39f0c19
commit 2221cb9f74
1 changed files with 7 additions and 10 deletions
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src/gallium/drivers/softpipe/sp_quad_blend.c
+7 -10
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@@ -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 */