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Implement shader relative addressing

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Fails on the negative unit tests at the moment but passes all of the
others.
This commit is contained in:
Wunkolo 2024-03-20 23:35:15 -07:00
parent 17b4c68577
commit 439134ac3b
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1 changed files with 19 additions and 13 deletions
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30
src/core/PICA/shader_interpreter.cpp
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@ -119,9 +119,17 @@ u8 PICAShader::getIndexedSource(u32 source, u32 index) {
return source;
switch (index) {
case 0: [[likely]] return u8(source); // No offset applied
case 1: return u8(source + addrRegister[0]);
case 2: return u8(source + addrRegister[1]);
// No offset applied
case 0: [[likely]] return u8(source);
// Address register
case 1:
case 2: {
const s32 offset = addrRegister[index - 1];
if (offset < -128 || offset > 127) [[unlikely]] {
return u8(source);
}
return u8(source + offset);
}
case 3: return u8(source + loopCounter);
}
@ -130,17 +138,16 @@ u8 PICAShader::getIndexedSource(u32 source, u32 index) {
}
PICAShader::vec4f PICAShader::getSource(u32 source) {
if (source < 0x10)
if (source < 0x10) {
return inputs[source];
else if (source < 0x20)
} else if (source < 0x20) {
return tempRegisters[source - 0x10];
else if (source <= 0x7f)
return floatUniforms[source - 0x20];
else if (source <= 0x7f + 96)
} else {
const usize floatIndex = (source - 0x20) & 0x7f;
if (floatIndex >= 96) [[unlikely]] {
return vec4f({f24::fromFloat32(1.0f), f24::fromFloat32(1.0f), f24::fromFloat32(1.0f), f24::fromFloat32(1.0f)});
else {
Helpers::warn("[PICA] Unimplemented source value: %X\n", source);
return vec4f({f24::zero(), f24::zero(), f24::zero(), f24::zero()});
}
return floatUniforms[floatIndex];
}
}
@ -305,7 +312,6 @@ void PICAShader::mova(u32 instruction) {
const u32 src = getBits<12, 7>(instruction);
const u32 idx = getBits<19, 2>(instruction);
if (idx) Helpers::panic("[PICA] MOVA: idx != 0");
vec4f srcVector = getSourceSwizzled<1>(src, operandDescriptor);
u32 componentMask = operandDescriptor & 0xf;