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Make vertexFullAlpha-in-register work the same as on ARM.

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This commit is contained in:
Henrik Rydgård 2023-06-11 17:13:31 +02:00
parent a164f77f47
commit c9aa3479a4
1 changed files with 14 additions and 13 deletions
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27
GPU/Common/VertexDecoderX86.cpp
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@ -203,15 +203,10 @@ JittedVertexDecoder VertexDecoderJitCache::Compile(const VertexDecoder &dec, int
MOVUPS(MDisp(ESP, 80), XMM9);
#endif
// Initialize alpha reg if possible. TODO: Only do if color values with alpha are used.
#if PPSSPP_ARCH(AMD64)
if (RipAccessible(&gstate_c.vertexFullAlpha)) {
MOV(8, R(alphaReg), M(&gstate_c.vertexFullAlpha)); // rip accessible
} else {
MOV(PTRBITS, R(tempReg1), ImmPtr(&gstate_c.vertexFullAlpha));
MOV(8, R(alphaReg), MatR(tempReg1));
// Initialize alpha reg.
if (dec.col) {
MOV(32, R(alphaReg), Imm32(1));
}
#endif
bool prescaleStep = false;
// Look for prescaled texcoord steps
@ -286,11 +281,16 @@ JittedVertexDecoder VertexDecoderJitCache::Compile(const VertexDecoder &dec, int
// Writeback alpha reg
#if PPSSPP_ARCH(AMD64)
if (RipAccessible(&gstate_c.vertexFullAlpha)) {
MOV(8, M(&gstate_c.vertexFullAlpha), R(alphaReg)); // rip accessible
} else {
MOV(PTRBITS, R(tempReg1), ImmPtr(&gstate_c.vertexFullAlpha));
MOV(8, MatR(tempReg1), R(alphaReg));
if (dec.col) {
CMP(32, R(alphaReg), Imm32(1));
FixupBranch alphaJump = J_CC(CC_NE, false);
if (RipAccessible(&gstate_c.vertexFullAlpha)) {
MOV(8, M(&gstate_c.vertexFullAlpha), Imm8(0)); // rip accessible
} else {
MOV(PTRBITS, R(tempReg1), ImmPtr(&gstate_c.vertexFullAlpha));
MOV(8, MatR(tempReg1), Imm8(0)); // rip accessible
}
SetJumpTarget(alphaJump);
}
#endif
@ -954,6 +954,7 @@ void VertexDecoderJitCache::Jit_Color8888() {
CMP(32, R(tempReg1), Imm32(0xFF000000));
FixupBranch skip = J_CC(CC_AE, false);
#if PPSSPP_ARCH(AMD64)
// Would like to use CMOV or SetCC but CMOV doesn't take immediates and SetCC isn't right. So...
XOR(32, R(alphaReg), R(alphaReg));
#else
if (RipAccessible(&gstate_c.vertexFullAlpha)) {