Emulator-Archive/ppsspp
1
0
Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2024-11-27 23:40:39 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

SoftGPU: Jit 16 bit texel decode.

Browse Source
This commit is contained in:
Unknown W. Brackets 2017-05-10 19:50:35 -07:00
parent cf32949183
commit 744736b926
2 changed files with 80 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
GPU/Common/VertexDecoderX86.cpp
View File

@ -1075,7 +1075,6 @@ static const float MEMORY_ALIGNED16(byColor565[4]) = { 255.0f / 31.0f, 255.0f /
void VertexDecoderJitCache::Jit_Color565Morph() {
MOV(PTRBITS, R(tempReg1), ImmPtr(&gstate_c.morphWeights[0]));
MOV(32, R(tempReg2), Imm32(1));
MOVDQA(XMM5, M(color565Mask));
MOVAPS(XMM6, M(byColor565));

83
GPU/Software/SamplerX86.cpp
View File

@ -50,6 +50,11 @@ static const X64Reg bufwReg = RCX;
static const X64Reg levelReg = R8;
#endif
static const X64Reg fpScratchReg1 = XMM1;
static const X64Reg fpScratchReg2 = XMM2;
static const X64Reg fpScratchReg3 = XMM3;
static const X64Reg fpScratchReg4 = XMM4;
NearestFunc SamplerJitCache::Compile(const SamplerID &id) {
BeginWrite();
const u8 *start = this->AlignCode16();
@ -145,6 +150,7 @@ bool SamplerJitCache::Jit_ReadTextureFormat(const SamplerID &id) {
success = Jit_ReadClutColor(id);
break;
// TODO: DXT?
default:
success = false;
}
@ -287,15 +293,86 @@ bool SamplerJitCache::Jit_GetTexDataSwizzled(const SamplerID &id, int bitsPerTex
}
bool SamplerJitCache::Jit_Decode5650() {
return false;
MOV(32, R(tempReg2), R(resultReg));
AND(32, R(tempReg2), Imm32(0x0000001F));
// B (we do R and B at the same time, they're both 5.)
MOV(32, R(tempReg1), R(resultReg));
AND(32, R(tempReg1), Imm32(0x0000F800));
SHL(32, R(tempReg1), Imm8(5));
OR(32, R(tempReg2), R(tempReg1));
// Expand 5 -> 8. At this point we have 00BB00RR.
MOV(32, R(tempReg1), R(tempReg2));
SHL(32, R(tempReg2), Imm8(3));
SHR(32, R(tempReg1), Imm8(2));
OR(32, R(tempReg2), R(tempReg1));
AND(32, R(tempReg2), Imm32(0x00FF00FF));
// Now's as good a time to put in A as any.
OR(32, R(tempReg2), Imm32(0xFF000000));
// Last, we need to align, extract, and expand G.
// 3 to align to G, and then 2 to expand to 8.
SHL(32, R(resultReg), Imm8(3 + 2));
AND(32, R(resultReg), Imm32(0x0000FC00));
MOV(32, R(tempReg1), R(resultReg));
// 2 to account for resultReg being preshifted, 4 for expansion.
SHR(32, R(tempReg1), Imm8(2 + 4));
OR(32, R(resultReg), R(tempReg1));
AND(32, R(resultReg), Imm32(0x0000FF00));
OR(32, R(resultReg), R(tempReg2));;
return true;
}
bool SamplerJitCache::Jit_Decode5551() {
return false;
MOV(32, R(tempReg2), R(resultReg));
MOV(32, R(tempReg1), R(resultReg));
AND(32, R(tempReg2), Imm32(0x0000001F));
AND(32, R(tempReg1), Imm32(0x000003E0));
SHL(32, R(tempReg1), Imm8(3));
OR(32, R(tempReg2), R(tempReg1));
MOV(32, R(tempReg1), R(resultReg));
AND(32, R(tempReg1), Imm32(0x00007C00));
SHL(32, R(tempReg1), Imm8(6));
OR(32, R(tempReg2), R(tempReg1));
// Expand 5 -> 8. After this is just A.
MOV(32, R(tempReg1), R(tempReg2));
SHL(32, R(tempReg2), Imm8(3));
SHR(32, R(tempReg1), Imm8(2));
// Chop off the bits that were shifted out.
AND(32, R(tempReg1), Imm32(0x00070707));
OR(32, R(tempReg2), R(tempReg1));
// For A, we shift it to a single bit, and then subtract and XOR.
// That's probably the simplest way to expand it...
SHR(32, R(resultReg), Imm8(15));
// If it was 0, it's now -1, otherwise it's 0. Easy.
SUB(32, R(resultReg), Imm8(1));
XOR(32, R(resultReg), Imm32(0xFF000000));
AND(32, R(resultReg), Imm32(0xFF000000));
OR(32, R(resultReg), R(tempReg2));
return true;
}
static const u32 MEMORY_ALIGNED16(color4444mask[4]) = { 0xf00ff00f, 0xf00ff00f, 0xf00ff00f, 0xf00ff00f, };
bool SamplerJitCache::Jit_Decode4444() {
return false;
MOVD_xmm(fpScratchReg1, R(resultReg));
PUNPCKLBW(fpScratchReg1, R(fpScratchReg1));
PAND(fpScratchReg1, M(color4444mask));
MOVSS(fpScratchReg2, R(fpScratchReg1));
MOVSS(fpScratchReg3, R(fpScratchReg1));
PSRLW(fpScratchReg2, 4);
PSLLW(fpScratchReg3, 4);
POR(fpScratchReg1, R(fpScratchReg2));
POR(fpScratchReg1, R(fpScratchReg3));
MOVD_xmm(R(resultReg), fpScratchReg1);
return true;
}
bool SamplerJitCache::Jit_TransformClutIndex(const SamplerID &id, int bitsPerIndex) {