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softjit: Use SSE4.1 for fog and dither a bit.

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Unknown W. Brackets 2021-11-24 23:01:03 -08:00
parent cf888257ab
commit 771d459025
1 changed files with 25 additions and 11 deletions
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36
GPU/Software/DrawPixelX86.cpp
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@ -468,13 +468,20 @@ bool PixelJitCache::Jit_ApplyFog(const PixelFuncID &id) {
}
// Load fog and expand to 16 bit. Ignore the high 8 bits, which'll match up with A.
X64Reg zeroReg = regCache_.Alloc(PixelRegCache::TEMP0, PixelRegCache::T_VEC);
X64Reg zeroReg = INVALID_REG;
X64Reg fogColorReg = regCache_.Alloc(PixelRegCache::TEMP1, PixelRegCache::T_VEC);
PXOR(zeroReg, R(zeroReg));
X64Reg gstateReg = GetGState();
MOVD_xmm(fogColorReg, MDisp(gstateReg, offsetof(GPUgstate, fogcolor)));
if (cpu_info.bSSE4_1) {
X64Reg gstateReg = GetGState();
// This actually loads the texlodslope too, but that's okay.
PMOVZXBW(fogColorReg, MDisp(gstateReg, offsetof(GPUgstate, fogcolor)));
} else {
zeroReg = regCache_.Alloc(PixelRegCache::TEMP0, PixelRegCache::T_VEC);
PXOR(zeroReg, R(zeroReg));
MOVD_xmm(fogColorReg, MDisp(gstateReg, offsetof(GPUgstate, fogcolor)));
PUNPCKLBW(fogColorReg, R(zeroReg));
}
regCache_.Unlock(gstateReg, PixelRegCache::T_GEN);
PUNPCKLBW(fogColorReg, R(zeroReg));
// Load a set of 255s at 16 bit into a reg for later...
X64Reg invertReg = regCache_.Alloc(PixelRegCache::TEMP2, PixelRegCache::T_VEC);
@ -483,8 +490,12 @@ bool PixelJitCache::Jit_ApplyFog(const PixelFuncID &id) {
regCache_.Unlock(constReg, PixelRegCache::T_GEN);
// Expand (we clamped) color to 16 bit as well, so we can multiply with fog.
PUNPCKLBW(argColorReg, R(zeroReg));
regCache_.Release(zeroReg, PixelRegCache::T_VEC);
if (cpu_info.bSSE4_1) {
PMOVZXBW(argColorReg, R(argColorReg));
} else {
PUNPCKLBW(argColorReg, R(zeroReg));
regCache_.Release(zeroReg, PixelRegCache::T_VEC);
}
// Save A so we can put it back, we don't "fog" A.
X64Reg alphaReg;
@ -1003,10 +1014,14 @@ bool PixelJitCache::Jit_Dither(const PixelFuncID &id) {
// We use 16-bit because we need a signed add, but we also want to saturate.
PSHUFLW(vecValueReg, R(vecValueReg), _MM_SHUFFLE(1, 0, 0, 0));
// With that, now let's convert the color to 16 bit...
X64Reg zeroReg = regCache_.Alloc(PixelRegCache::TEMP1, PixelRegCache::T_VEC);
PXOR(zeroReg, R(zeroReg));
PUNPCKLBW(argColorReg, R(zeroReg));
regCache_.Release(zeroReg, PixelRegCache::T_VEC);
if (cpu_info.bSSE4_1) {
PMOVZXBW(argColorReg, R(argColorReg));
} else {
X64Reg zeroReg = regCache_.Alloc(PixelRegCache::TEMP1, PixelRegCache::T_VEC);
PXOR(zeroReg, R(zeroReg));
PUNPCKLBW(argColorReg, R(zeroReg));
regCache_.Release(zeroReg, PixelRegCache::T_VEC);
}
// And simply add the dither values.
PADDSW(argColorReg, R(vecValueReg));
regCache_.Release(vecValueReg, PixelRegCache::T_VEC);
@ -1520,7 +1535,6 @@ bool PixelJitCache::Jit_ApplyLogicOp(const PixelFuncID &id, PixelRegCache::Reg c
finishes.push_back(J(true));
tableValues[GE_LOGIC_SET] = GetCodePointer();
// TODO: Apply logic op and add stencil meanwhile.
if (stencilReg != INVALID_REG && maskReg != INVALID_REG) {
OR(32, R(colorReg), R(stencilReg));
OR(bits, R(colorReg), notStencilMask);