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r300g: fix alpha-test with no colorbuffer

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Piglit:
- fbo-alphatest-nocolor

NOTE: This is a candidate for the stable branches.
(cherry picked from commit 226ae9d6c8)
This commit is contained in:
Marek Olšák 2011-03-24 23:35:16 +01:00
parent 39149172c8
commit 7397c034ac
1 changed files with 5 additions and 0 deletions
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5
src/gallium/drivers/r300/r300_emit.c
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@ -475,6 +475,11 @@ void r300_emit_fb_state_pipelined(struct r300_context *r300,
for (i = 0; i < fb->nr_cbufs; i++) {
OUT_CS(r300_surface(fb->cbufs[i])->format);
}
for (; i < 1; i++) {
OUT_CS(R300_US_OUT_FMT_C4_8 |
R300_C0_SEL_B | R300_C1_SEL_G |
R300_C2_SEL_R | R300_C3_SEL_A);
}
for (; i < 4; i++) {
OUT_CS(R300_US_OUT_FMT_UNUSED);
}