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radeonsi: Change default behaviour for undefined COLOR0

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d3d 9 needs COLOR0 to be 1.0 on all channels when
undefined. 0.0 for the others is fine.
GL behaviour is undefined.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Axel Davy 2016-03-19 19:57:00 +01:00
parent a221f40dbb
commit fc3533c088
1 changed files with 3 additions and 0 deletions
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3
src/gallium/drivers/radeonsi/si_state_shaders.c
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@ -1406,6 +1406,9 @@ static unsigned si_get_ps_input_cntl(struct si_context *sctx,
* Don't set any other bits.
* (FLAT_SHADE=1 completely changes behavior) */
ps_input_cntl = S_028644_OFFSET(0x20);
/* D3D 9 behaviour. GL is undefined */
if (name == TGSI_SEMANTIC_COLOR && index == 0)
ps_input_cntl |= S_028644_DEFAULT_VAL(3);
}
return ps_input_cntl;
}