Diamond75/Panda3DS
1
0
Fork 0
mirror of https://github.com/wheremyfoodat/Panda3DS.git synced 2025-04-06 22:25:41 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

[PICA interpreter] Implement min

Browse source
This commit is contained in:
wheremyfoodat 2022-09-26 00:07:59 +03:00
parent 71814debac
commit f4fabdae40
2 changed files with 27 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
include/PICA/shader.hpp
View file

@ -16,8 +16,10 @@ namespace ShaderOpcodes {
DP3 = 0x01,
DP4 = 0x02,
MUL = 0x08,
MIN = 0x0D,
MOVA = 0x12,
MOV = 0x13,
NOP = 0x21,
END = 0x22,
IFC = 0x28,
LOOP = 0x29,
@ -75,6 +77,7 @@ class PICAShader {
void dp4(u32 instruction);
void ifc(u32 instruction);
void loop(u32 instruction);
void min(u32 instruction);
void mov(u32 instruction);
void mova(u32 instruction);
void mul(u32 instruction);

24
src/core/PICA/shader_interpreter.cpp
View file

@ -19,9 +19,11 @@ void PICAShader::run() {
case ShaderOpcodes::END: return; // Stop running shader
case ShaderOpcodes::IFC: ifc(instruction); break;
case ShaderOpcodes::LOOP: loop(instruction); break;
case ShaderOpcodes::MIN: min(instruction); break;
case ShaderOpcodes::MOV: mov(instruction); break;
case ShaderOpcodes::MOVA: mova(instruction); break;
case ShaderOpcodes::MUL: mul(instruction); break;
case ShaderOpcodes::NOP: break; // Do nothing
default:Helpers::panic("Unimplemented PICA instruction %08X (Opcode = %02X)", instruction, opcode);
}
@ -147,6 +149,28 @@ void PICAShader::mul(u32 instruction) {
}
}
void PICAShader::min(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
const u32 src1 = (instruction >> 12) & 0x7f;
const u32 src2 = (instruction >> 7) & 0x1f; // src2 coming first because PICA moment
const u32 idx = (instruction >> 19) & 3;
const u32 dest = (instruction >> 21) & 0x1f;
if (idx) Helpers::panic("[PICA] MIN: idx != 0");
vec4f srcVec1 = getSourceSwizzled<1>(src1, operandDescriptor);
vec4f srcVec2 = getSourceSwizzled<2>(src2, operandDescriptor);
vec4f& destVector = getDest(dest);
u32 componentMask = operandDescriptor & 0xf;
for (int i = 0; i < 4; i++) {
if (componentMask & (1 << i)) {
const auto mininum = srcVec1[3 - i] < srcVec2[3 - i] ? srcVec1[3 - i] : srcVec2[3 - i];
destVector[3 - i] = mininum;
}
}
}
void PICAShader::mov(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
u32 src = (instruction >> 12) & 0x7f;