137 lines
4.5 KiB
C++
137 lines
4.5 KiB
C++
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// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <boost/container/static_vector.hpp>
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#include <fmt/format.h>
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#include "shader_recompiler/backend/spirv/spirv_emit_context.h"
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namespace Shader::Backend::SPIRV {
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namespace {
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std::string_view StageName(Stage stage) {
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switch (stage) {
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case Stage::Vertex:
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return "vs";
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case Stage::TessellationControl:
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return "tcs";
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case Stage::TessellationEval:
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return "tes";
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case Stage::Geometry:
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return "gs";
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case Stage::Fragment:
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return "fs";
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case Stage::Compute:
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return "cs";
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}
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throw InvalidArgument("Invalid stage {}", u32(stage));
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}
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template <typename... Args>
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void Name(EmitContext& ctx, Id object, std::string_view format_str, Args&&... args) {
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ctx.Name(object, fmt::format(fmt::runtime(format_str), StageName(ctx.stage),
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std::forward<Args>(args)...)
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.c_str());
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}
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} // Anonymous namespace
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EmitContext::EmitContext(const Profile& profile_, IR::Program& program, Bindings& bindings)
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: Sirit::Module(profile_.supported_spirv), profile{profile_}, stage{program.stage} {
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u32& uniform_binding{bindings.unified};
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u32& storage_binding{bindings.unified};
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u32& texture_binding{bindings.unified};
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u32& image_binding{bindings.unified};
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AddCapability(spv::Capability::Shader);
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DefineArithmeticTypes();
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DefineInterfaces(program);
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}
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EmitContext::~EmitContext() = default;
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Id EmitContext::Def(const IR::Value& value) {
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if (!value.IsImmediate()) {
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return value.InstRecursive()->Definition<Id>();
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}
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switch (value.Type()) {
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case IR::Type::Void:
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return Id{};
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case IR::Type::U1:
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return value.U1() ? true_value : false_value;
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case IR::Type::U32:
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return ConstU32(value.U32());
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case IR::Type::U64:
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return Constant(U64, value.U64());
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case IR::Type::F32:
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return ConstF32(value.F32());
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case IR::Type::F64:
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return Constant(F64[1], value.F64());
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default:
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throw NotImplementedException("Immediate type {}", value.Type());
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}
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}
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void EmitContext::DefineArithmeticTypes() {
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void_id = Name(TypeVoid(), "void_id");
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U1[1] = Name(TypeBool(), "bool_id");
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// F16[1] = Name(TypeFloat(16), "f16_id");
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F32[1] = Name(TypeFloat(32), "f32_id");
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// F64[1] = Name(TypeFloat(64), "f64_id");
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S32[1] = Name(TypeSInt(32), "i32_id");
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U32[1] = Name(TypeUInt(32), "u32_id");
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// U8 = Name(TypeSInt(8), "u8");
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// S8 = Name(TypeUInt(8), "s8");
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// U16 = Name(TypeUInt(16), "u16_id");
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// S16 = Name(TypeSInt(16), "s16_id");
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// U64 = Name(TypeUInt(64), "u64_id");
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for (u32 i = 2; i <= 4; i++) {
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// F16[i] = Name(TypeVector(F16[1], i), fmt::format("f16vec{}_id", i));
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F32[i] = Name(TypeVector(F32[1], i), fmt::format("f32vec{}_id", i));
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// F64[i] = Name(TypeVector(F64[1], i), fmt::format("f64vec{}_id", i));
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S32[i] = Name(TypeVector(S32[1], i), fmt::format("i32vec{}_id", i));
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U32[i] = Name(TypeVector(U32[1], i), fmt::format("u32vec{}_id", i));
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U1[i] = Name(TypeVector(U1[1], i), fmt::format("bvec{}_id", i));
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}
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true_value = ConstantTrue(U1[1]);
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false_value = ConstantFalse(U1[1]);
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u32_zero_value = ConstU32(0U);
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f32_zero_value = ConstF32(0.0f);
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output_f32 = Name(TypePointer(spv::StorageClass::Output, F32[1]), "output_f32");
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output_u32 = Name(TypePointer(spv::StorageClass::Output, U32[1]), "output_u32");
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}
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void EmitContext::DefineInterfaces(const IR::Program& program) {
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DefineInputs(program);
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DefineOutputs(program);
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}
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void EmitContext::DefineInputs(const IR::Program& program) {
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switch (stage) {
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case Stage::Vertex:
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vertex_index = DefineVariable(U32[1], spv::BuiltIn::VertexIndex, spv::StorageClass::Input);
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base_vertex = DefineVariable(U32[1], spv::BuiltIn::BaseVertex, spv::StorageClass::Input);
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break;
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default:
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break;
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}
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}
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void EmitContext::DefineOutputs(const IR::Program& program) {
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switch (stage) {
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case Stage::Vertex:
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output_position = DefineVariable(F32[4], spv::BuiltIn::Position, spv::StorageClass::Output);
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break;
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case Stage::Fragment:
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frag_color[0] = DefineOutput(F32[4], 0);
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Name(frag_color[0], fmt::format("frag_color{}", 0));
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interfaces.push_back(frag_color[0]);
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break;
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default:
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break;
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}
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}
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} // namespace Shader::Backend::SPIRV
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