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r300/compiler: Emit 0.5 swizzle when necessary.

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Signed-off-by: Marek Olšák <maraeo@gmail.com>
This commit is contained in:
Tom Stellard 2010-05-17 23:29:19 -07:00 • committed by Marek Olšák
parent 81951393e1
commit 19ea2eae91
1 changed files with 3 additions and 1 deletions
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4
src/mesa/drivers/dri/r300/compiler/r300_fragprog_swizzle.c
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@ -56,7 +56,8 @@ static const struct swizzle_data native_swizzles[] = {
{MAKE_SWZ3(Z, X, Y), R300_ALU_ARGC_SRC0C_ZXY, 1},
{MAKE_SWZ3(W, Z, Y), R300_ALU_ARGC_SRC0CA_WZY, 1},
{MAKE_SWZ3(ONE, ONE, ONE), R300_ALU_ARGC_ONE, 0},
{MAKE_SWZ3(ZERO, ZERO, ZERO), R300_ALU_ARGC_ZERO, 0}
{MAKE_SWZ3(ZERO, ZERO, ZERO), R300_ALU_ARGC_ZERO, 0},
{MAKE_SWZ3(HALF, HALF, HALF), R300_ALU_ARGC_HALF, 0}
};
static const int num_native_swizzles = sizeof(native_swizzles)/sizeof(native_swizzles[0]);
@ -221,6 +222,7 @@ unsigned int r300FPTranslateAlphaSwizzle(unsigned int src, unsigned int swizzle)
case RC_SWIZZLE_W: return R300_ALU_ARGA_SRC0A + src;
case RC_SWIZZLE_ONE: return R300_ALU_ARGA_ONE;
case RC_SWIZZLE_ZERO: return R300_ALU_ARGA_ZERO;
case RC_SWIZZLE_HALF: return R300_ALU_ARGA_HALF;
default: return R300_ALU_ARGA_ONE;
}
}