Mirrors/shadPS4
1
0
Fork 0
mirror of https://github.com/shadps4-emu/shadPS4.git synced 2025-05-19 09:54:54 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

Initial support of Geometry shaders (#1244)

Browse source 
* video_core: initial GS support

* fix for components mapping; missing prim type
This commit is contained in:
psucien 2024-10-06 00:26:50 +02:00 • committed by GitHub
parent 5bb45dc7ba
commit 927bb0c175
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
40 changed files with 944 additions and 268 deletions
Download patch file Download diff file Expand all files Collapse all files

51
src/shader_recompiler/backend/spirv/emit_spirv.cpp
View file

@ -5,6 +5,7 @@
#include <type_traits>
#include <utility>
#include <vector>
#include "common/assert.h"
#include "common/func_traits.h"
#include "shader_recompiler/backend/spirv/emit_spirv.h"
#include "shader_recompiler/backend/spirv/emit_spirv_instructions.h"
@ -12,10 +13,38 @@
#include "shader_recompiler/frontend/translate/translate.h"
#include "shader_recompiler/ir/basic_block.h"
#include "shader_recompiler/ir/program.h"
#include "video_core/amdgpu/types.h"
namespace Shader::Backend::SPIRV {
namespace {
static constexpr spv::ExecutionMode GetInputPrimitiveType(AmdGpu::PrimitiveType type) {
switch (type) {
case AmdGpu::PrimitiveType::PointList:
return spv::ExecutionMode::InputPoints;
case AmdGpu::PrimitiveType::LineList:
return spv::ExecutionMode::InputLines;
case AmdGpu::PrimitiveType::TriangleList:
case AmdGpu::PrimitiveType::TriangleStrip:
return spv::ExecutionMode::Triangles;
default:
UNREACHABLE();
}
}
static constexpr spv::ExecutionMode GetOutputPrimitiveType(AmdGpu::GsOutputPrimitiveType type) {
switch (type) {
case AmdGpu::GsOutputPrimitiveType::PointList:
return spv::ExecutionMode::OutputVertices;
case AmdGpu::GsOutputPrimitiveType::LineStrip:
return spv::ExecutionMode::OutputLineStrip;
case AmdGpu::GsOutputPrimitiveType::TriangleStrip:
return spv::ExecutionMode::OutputTriangleStrip;
default:
UNREACHABLE();
}
}
template <auto func, typename... Args>
void SetDefinition(EmitContext& ctx, IR::Inst* inst, Args... args) {
inst->SetDefinition<Id>(func(ctx, std::forward<Args>(args)...));
@ -222,6 +251,7 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
workgroup_size[1], workgroup_size[2]);
break;
}
case Stage::Export:
case Stage::Vertex:
execution_model = spv::ExecutionModel::Vertex;
break;
@ -240,6 +270,16 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
ctx.AddExecutionMode(main, spv::ExecutionMode::DepthReplacing);
}
break;
case Stage::Geometry:
execution_model = spv::ExecutionModel::Geometry;
ctx.AddExecutionMode(main, GetInputPrimitiveType(ctx.runtime_info.gs_info.in_primitive));
ctx.AddExecutionMode(main,
GetOutputPrimitiveType(ctx.runtime_info.gs_info.out_primitive[0]));
ctx.AddExecutionMode(main, spv::ExecutionMode::OutputVertices,
ctx.runtime_info.gs_info.output_vertices);
ctx.AddExecutionMode(main, spv::ExecutionMode::Invocations,
ctx.runtime_info.gs_info.num_invocations);
break;
default:
throw NotImplementedException("Stage {}", u32(program.info.stage));
}
@ -270,11 +310,20 @@ std::vector<u32> EmitSPIRV(const Profile& profile, const RuntimeInfo& runtime_in
EmitContext ctx{profile, runtime_info, program.info, binding};
const Id main{DefineMain(ctx, program)};
DefineEntryPoint(program, ctx, main);
if (program.info.stage == Stage::Vertex) {
switch (program.info.stage) {
case Stage::Export:
case Stage::Vertex:
ctx.AddExtension("SPV_KHR_shader_draw_parameters");
ctx.AddCapability(spv::Capability::DrawParameters);
break;
case Stage::Geometry:
ctx.AddCapability(spv::Capability::Geometry);
break;
default:
break;
}
PatchPhiNodes(program, ctx);
binding.user_data += program.info.ud_mask.NumRegs();
return ctx.Assemble();
}