diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c b/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c index 6d7263b4ab6..9e03eb1aca8 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c @@ -214,16 +214,21 @@ static void set_pair_instruction(struct r300_fragment_program_compiler *c, if (needrgb && !istranscendent) { unsigned int srcrgb = 0; unsigned int srcalpha = 0; + unsigned int srcmask = 0; int j; /* We don't care about the alpha channel here. We only * want the part of the swizzle that writes to rgb, * since we are creating an rgb instruction. */ for(j = 0; j < 3; ++j) { unsigned int swz = GET_SWZ(inst->SrcReg[i].Swizzle, j); - if (swz < 3) + + if (swz < RC_SWIZZLE_W) srcrgb = 1; - else if (swz < 4) + else if (swz == RC_SWIZZLE_W) srcalpha = 1; + + if (swz < RC_SWIZZLE_UNUSED) + srcmask |= 1 << j; } source = rc_pair_alloc_source(pair, srcrgb, srcalpha, inst->SrcReg[i].File, inst->SrcReg[i].Index); @@ -236,7 +241,7 @@ static void set_pair_instruction(struct r300_fragment_program_compiler *c, pair->RGB.Arg[i].Swizzle = rc_init_swizzle(inst->SrcReg[i].Swizzle, 3); pair->RGB.Arg[i].Abs = inst->SrcReg[i].Abs; - pair->RGB.Arg[i].Negate = !!(inst->SrcReg[i].Negate & (RC_MASK_X | RC_MASK_Y | RC_MASK_Z)); + pair->RGB.Arg[i].Negate = !!(srcmask & inst->SrcReg[i].Negate & (RC_MASK_X | RC_MASK_Y | RC_MASK_Z)); } if (needalpha) { unsigned int srcrgb = 0; |