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https://github.com/KytyPS5/KytyPS5.git
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101 lines
3.6 KiB
C++
101 lines
3.6 KiB
C++
#include "common/assert.h"
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#include "graphics/shader/recompiler/frontend/translate/Translator.h"
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#include <algorithm>
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#include <array>
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namespace Libs::Graphics::ShaderRecompiler::Frontend {
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namespace {
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IR::ExportTargetKind ExportTargetKindFromTarget(uint32_t target, uint32_t& index) {
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index = 0;
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switch (target) {
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case 0x08u: return IR::ExportTargetKind::MrtZ;
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case 0x09u: return IR::ExportTargetKind::Null;
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case 0x14u: return IR::ExportTargetKind::Primitive;
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default: break;
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}
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if (target <= 0x07u) {
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index = target;
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return IR::ExportTargetKind::Mrt;
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}
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if (target >= 0x0cu && target <= 0x0fu) {
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index = target - 0x0cu;
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return IR::ExportTargetKind::Position;
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}
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if (target >= 0x20u && target <= 0x3fu) {
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index = target - 0x20u;
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return IR::ExportTargetKind::Parameter;
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}
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return IR::ExportTargetKind::Unknown;
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}
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} // namespace
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IR::ExportFlags Translator::AddExportInfo(const Decoder::Instruction& inst) {
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IR::ExportInfo info;
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info.kind = ExportTargetKindFromTarget(inst.exp.target, info.index);
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info.target = inst.exp.target;
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info.en = inst.exp.en;
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info.done = inst.exp.done;
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info.compr = inst.exp.compr;
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info.vm = inst.exp.vm;
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const auto index = static_cast<uint32_t>(program.export_info.size());
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program.export_info.push_back(info);
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return {.index = index, .pc = inst.pc};
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}
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void Translator::TranslateEmbeddedFetch(const Decoder::Instruction& inst, uint32_t attribute,
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uint32_t component_count) {
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for (uint32_t component = 0; component < component_count; component++) {
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const auto value =
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ir.Emit(IR::ValueOpcode::GetAttribute, {IR::Value(attribute), IR::Value(component)});
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WriteOperand(OffsetOperand(inst.dst, component), value);
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}
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}
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void Translator::V_INTERP_P1_F32() {}
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void Translator::V_INTERP_P2_F32(const Decoder::Instruction& inst) {
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const auto value = ir.Emit(IR::ValueOpcode::GetAttribute,
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{IR::Value(inst.src1.value), IR::Value(inst.src2.value)});
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WriteOperand(inst.dst, value);
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}
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void Translator::V_INTERP_MOV_F32(const Decoder::Instruction& inst) {
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if (inst.src0.value >= 3u) {
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EXIT("v_interp_mov_f32 mode %u is reserved at pc 0x%08x", inst.src0.value, inst.pc);
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}
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const auto value = ir.Emit(
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IR::ValueOpcode::GetInterpolationParameter,
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{IR::Value(inst.src1.value), IR::Value(inst.src2.value), IR::Value(inst.src0.value)});
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WriteOperand(inst.dst, value);
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}
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void Translator::EXP(const Decoder::Instruction& inst) {
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uint32_t index = 0;
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if (ExportTargetKindFromTarget(inst.exp.target, index) == IR::ExportTargetKind::Unknown) {
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EXIT("unsupported EXP target 0x%02x at pc 0x%08x", inst.exp.target, inst.pc);
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}
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std::array<IR::Value, 4> components {IR::Value(0u), IR::Value(0u), IR::Value(0u),
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IR::Value(0u)};
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for (uint32_t source = 0; source < std::min(inst.src_count, 4u); source++) {
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components[source] = ReadRawU32(PlainOperand(SourceAt(inst, source)));
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}
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const auto data = ir.Emit(IR::ValueOpcode::CompositeConstructU32x4,
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{components[0], components[1], components[2], components[3]});
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ir.Emit(IR::ValueOpcode::SetAttribute, {data, ir.GetExec()}, AddExportInfo(inst));
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}
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bool Translator::EmitInterpolation(const Decoder::Instruction& inst) {
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switch (inst.opcode) {
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case Decoder::Opcode::V_INTERP_P1_F32: V_INTERP_P1_F32(); return true;
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case Decoder::Opcode::V_INTERP_P2_F32: V_INTERP_P2_F32(inst); return true;
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case Decoder::Opcode::V_INTERP_MOV_F32: V_INTERP_MOV_F32(inst); return true;
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default: return false;
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}
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}
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} // namespace Libs::Graphics::ShaderRecompiler::Frontend
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