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Initial support of Geometry shaders (#1244)

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* video_core: initial GS support

* fix for components mapping; missing prim type
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psucien 2024-10-06 00:26:50 +02:00 • committed by GitHub
parent 5bb45dc7ba
commit 927bb0c175
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GPG key ID: B5690EEEBB952194
40 changed files with 944 additions and 268 deletions
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45
src/shader_recompiler/frontend/translate/translate.cpp
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@ -10,6 +10,7 @@
#include "shader_recompiler/info.h"
#include "shader_recompiler/runtime_info.h"
#include "video_core/amdgpu/resource.h"
#include "video_core/amdgpu/types.h"
#define MAGIC_ENUM_RANGE_MIN 0
#define MAGIC_ENUM_RANGE_MAX 1515
@ -35,6 +36,7 @@ void Translator::EmitPrologue() {
IR::VectorReg dst_vreg = IR::VectorReg::V0;
switch (info.stage) {
case Stage::Vertex:
case Stage::Export:
// v0: vertex ID, always present
ir.SetVectorReg(dst_vreg++, ir.GetAttributeU32(IR::Attribute::VertexId));
// v1: instance ID, step rate 0
@ -76,6 +78,20 @@ void Translator::EmitPrologue() {
ir.SetScalarReg(dst_sreg++, ir.GetAttributeU32(IR::Attribute::WorkgroupId, 2));
}
break;
case Stage::Geometry:
switch (runtime_info.gs_info.out_primitive[0]) {
case AmdGpu::GsOutputPrimitiveType::TriangleStrip:
ir.SetVectorReg(IR::VectorReg::V3, ir.Imm32(2u)); // vertex 2
[[fallthrough]];
case AmdGpu::GsOutputPrimitiveType::LineStrip:
ir.SetVectorReg(IR::VectorReg::V1, ir.Imm32(1u)); // vertex 1
[[fallthrough]];
default:
ir.SetVectorReg(IR::VectorReg::V0, ir.Imm32(0u)); // vertex 0
break;
}
ir.SetVectorReg(IR::VectorReg::V2, ir.GetAttributeU32(IR::Attribute::PrimitiveId));
break;
default:
throw NotImplementedException("Unknown shader stage");
}
@ -359,7 +375,7 @@ void Translator::EmitFetch(const GcnInst& inst) {
if (!std::filesystem::exists(dump_dir)) {
std::filesystem::create_directories(dump_dir);
}
const auto filename = fmt::format("vs_{:#018x}_fetch.bin", info.pgm_hash);
const auto filename = fmt::format("vs_{:#018x}.fetch.bin", info.pgm_hash);
const auto file = IOFile{dump_dir / filename, FileAccessMode::Write};
file.WriteRaw<u8>(code, fetch_size);
}
@ -424,31 +440,6 @@ void Translator::EmitFetch(const GcnInst& inst) {
}
}
void Translator::EmitFlowControl(u32 pc, const GcnInst& inst) {
switch (inst.opcode) {
case Opcode::S_BARRIER:
return S_BARRIER();
case Opcode::S_TTRACEDATA:
LOG_WARNING(Render_Vulkan, "S_TTRACEDATA instruction!");
return;
case Opcode::S_GETPC_B64:
return S_GETPC_B64(pc, inst);
case Opcode::S_WAITCNT:
case Opcode::S_NOP:
case Opcode::S_ENDPGM:
case Opcode::S_CBRANCH_EXECZ:
case Opcode::S_CBRANCH_SCC0:
case Opcode::S_CBRANCH_SCC1:
case Opcode::S_CBRANCH_VCCNZ:
case Opcode::S_CBRANCH_VCCZ:
case Opcode::S_CBRANCH_EXECNZ:
case Opcode::S_BRANCH:
return;
default:
UNREACHABLE();
}
}
void Translator::LogMissingOpcode(const GcnInst& inst) {
LOG_ERROR(Render_Recompiler, "Unknown opcode {} ({}, category = {})",
magic_enum::enum_name(inst.opcode), u32(inst.opcode),
@ -467,7 +458,7 @@ void Translate(IR::Block* block, u32 pc, std::span<const GcnInst> inst_list, Inf
// Special case for emitting fetch shader.
if (inst.opcode == Opcode::S_SWAPPC_B64) {
ASSERT(info.stage == Stage::Vertex);
ASSERT(info.stage == Stage::Vertex || info.stage == Stage::Export);
translator.EmitFetch(inst);
continue;
}