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[PICA] Implement FLR

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wheremyfoodat 2023-03-12 04:47:34 +02:00
parent 63075f1830
commit 672e782990
2 changed files with 21 additions and 0 deletions
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2
include/PICA/shader.hpp
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@ -16,6 +16,7 @@ namespace ShaderOpcodes {
DP3 = 0x01,
DP4 = 0x02,
MUL = 0x08,
FLR = 0x0B,
MAX = 0x0C,
MIN = 0x0D,
RCP = 0x0E,
@ -95,6 +96,7 @@ class PICAShader {
void cmp(u32 instruction);
void dp3(u32 instruction);
void dp4(u32 instruction);
void flr(u32 instruction);
void ifc(u32 instruction);
void ifu(u32 instruction);
void jmpc(u32 instruction);

19
src/core/PICA/shader_interpreter.cpp
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@ -22,6 +22,7 @@ void PICAShader::run() {
case ShaderOpcodes::DP3: dp3(instruction); break;
case ShaderOpcodes::DP4: dp4(instruction); break;
case ShaderOpcodes::END: return; // Stop running shader
case ShaderOpcodes::FLR: flr(instruction); break;
case ShaderOpcodes::IFC: ifc(instruction); break;
case ShaderOpcodes::IFU: ifu(instruction); break;
case ShaderOpcodes::JMPC: jmpc(instruction); break;
@ -176,6 +177,24 @@ void PICAShader::mul(u32 instruction) {
}
}
void PICAShader::flr(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
u32 src = (instruction >> 12) & 0x7f;
const u32 idx = (instruction >> 19) & 3;
const u32 dest = (instruction >> 21) & 0x1f;
src = getIndexedSource(src, idx);
vec4f srcVector = getSourceSwizzled<1>(src, operandDescriptor);
vec4f& destVector = getDest(dest);
u32 componentMask = operandDescriptor & 0xf;
for (int i = 0; i < 4; i++) {
if (componentMask & (1 << i)) {
destVector[3 - i] = f24::fromFloat32(std::floor(srcVector[3 - 1].toFloat32()));
}
}
}
void PICAShader::max(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
const u32 src1 = (instruction >> 12) & 0x7f;