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Fixing UNPACK D3DCOLOR. Probably.

This commit is contained in:
Ben Vanik 2014-05-30 21:38:33 -07:00
parent 0b42c72ec5
commit 7acbf759e2
2 changed files with 3 additions and 1 deletions
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2
src/alloy/backend/x64/x64_emitter.cc
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@ -494,7 +494,7 @@ Address X64Emitter::GetXmmConstPtr(XmmConst id) {
/* XMMByteSwapMask */ vec128i(0x00010203u, 0x04050607u, 0x08090A0Bu, 0x0C0D0E0Fu),
/* XMMPermuteControl15 */ vec128b(15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15),
/* XMMPackD3DCOLOR */ vec128i(0xFFFFFFFFu, 0xFFFFFFFFu, 0xFFFFFFFFu, 0x0C000408u),
/* XMMUnpackD3DCOLOR */ vec128i(0xFFFFFF02u, 0xFFFFFF01u, 0xFFFFFF00u, 0xFFFFFF03u),
/* XMMUnpackD3DCOLOR */ vec128i(0xFFFFFF0Eu, 0xFFFFFF0Du, 0xFFFFFF0Cu, 0xFFFFFF0Fu),
/* XMMOneOver255 */ vec128f(1.0f / 255.0f, 1.0f / 255.0f, 1.0f / 255.0f, 1.0f / 255.0f),
/* XMMShiftMaskPS */ vec128i(0x0000001Fu, 0x0000001Fu, 0x0000001Fu, 0x0000001Fu),
/* XMMShiftByteMask */ vec128i(0x000000FFu, 0x000000FFu, 0x000000FFu, 0x000000FFu),

2
src/alloy/backend/x64/x64_sequences.cc
View File

@ -4826,6 +4826,8 @@ EMITTER(UNPACK, MATCH(I<OPCODE_UNPACK, V128<>, V128<>>)) {
// src = ZZYYXXWW
// unpack to 000000ZZ,000000YY,000000XX,000000WW
e.vpshufb(i.dest, i.src1, e.GetXmmConstPtr(XMMUnpackD3DCOLOR));
// int -> float
e.vcvtdq2ps(i.dest, i.dest);
// mult by 1/255
e.vmulps(i.dest, e.GetXmmConstPtr(XMMOneOver255));
}