Fixes a bug in Trine where fragment.color would write
FRAG_RESULT_COLOR (which is interpreted by drivers as being the "write
this to all color buffers" option) instead of FRAG_RESULT_DATA0 (just
the first target).
Fixes piglit ATI_draw_buffers/arbfp-no-index.
---
src/mesa/program/program_parse.y | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/mesa/program/program_parse.y b/src/mesa/program/program_parse.y
index b35bc5a..85c783d 100644
--- a/src/mesa/program/program_parse.y
+++ b/src/mesa/program/program_parse.y
@@ -2060,9 +2060,14 @@ resultColBinding: COLOR optResultFaceType
optResultColorType
optResultFaceType:
{
- $$ = (state->mode == ARB_vertex)
- ? VERT_RESULT_COL0
- : FRAG_RESULT_COLOR;
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_COL0;
+ } else {
+ if (state->option.DrawBuffers)
+ $$ = FRAG_RESULT_DATA0;
+ else
+ $$ = FRAG_RESULT_COLOR;
+ }
}
| '[' INTEGER ']'
{
--
1.7.4.4
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