539 lines
22 KiB
C++
539 lines
22 KiB
C++
// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <array>
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#include <string_view>
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#include <fmt/format.h>
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#include "common/common_types.h"
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#include "common/div_ceil.h"
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#include "shader_recompiler/backend/spirv/emit_context.h"
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namespace Shader::Backend::SPIRV {
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namespace {
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Id ImageType(EmitContext& ctx, const TextureDescriptor& desc) {
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const spv::ImageFormat format{spv::ImageFormat::Unknown};
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const Id type{ctx.F32[1]};
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switch (desc.type) {
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case TextureType::Color1D:
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return ctx.TypeImage(type, spv::Dim::Dim1D, false, false, false, 1, format);
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case TextureType::ColorArray1D:
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return ctx.TypeImage(type, spv::Dim::Dim1D, false, true, false, 1, format);
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case TextureType::Color2D:
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return ctx.TypeImage(type, spv::Dim::Dim2D, false, false, false, 1, format);
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case TextureType::ColorArray2D:
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return ctx.TypeImage(type, spv::Dim::Dim2D, false, true, false, 1, format);
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case TextureType::Color3D:
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return ctx.TypeImage(type, spv::Dim::Dim3D, false, false, false, 1, format);
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case TextureType::ColorCube:
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return ctx.TypeImage(type, spv::Dim::Cube, false, false, false, 1, format);
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case TextureType::ColorArrayCube:
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return ctx.TypeImage(type, spv::Dim::Cube, false, true, false, 1, format);
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case TextureType::Shadow1D:
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return ctx.TypeImage(type, spv::Dim::Dim1D, true, false, false, 1, format);
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case TextureType::ShadowArray1D:
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return ctx.TypeImage(type, spv::Dim::Dim1D, true, true, false, 1, format);
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case TextureType::Shadow2D:
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return ctx.TypeImage(type, spv::Dim::Dim2D, true, false, false, 1, format);
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case TextureType::ShadowArray2D:
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return ctx.TypeImage(type, spv::Dim::Dim2D, true, true, false, 1, format);
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case TextureType::Shadow3D:
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return ctx.TypeImage(type, spv::Dim::Dim3D, true, false, false, 1, format);
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case TextureType::ShadowCube:
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return ctx.TypeImage(type, spv::Dim::Cube, true, false, false, 1, format);
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case TextureType::ShadowArrayCube:
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return ctx.TypeImage(type, spv::Dim::Cube, false, true, false, 1, format);
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}
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throw InvalidArgument("Invalid texture type {}", desc.type);
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}
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Id DefineVariable(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin,
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spv::StorageClass storage_class) {
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const Id pointer_type{ctx.TypePointer(storage_class, type)};
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const Id id{ctx.AddGlobalVariable(pointer_type, storage_class)};
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if (builtin) {
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ctx.Decorate(id, spv::Decoration::BuiltIn, *builtin);
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}
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ctx.interfaces.push_back(id);
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return id;
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}
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Id DefineInput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin = std::nullopt) {
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return DefineVariable(ctx, type, builtin, spv::StorageClass::Input);
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}
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Id DefineOutput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin = std::nullopt) {
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return DefineVariable(ctx, type, builtin, spv::StorageClass::Output);
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}
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Id GetAttributeType(EmitContext& ctx, AttributeType type) {
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switch (type) {
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case AttributeType::Float:
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return ctx.F32[4];
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case AttributeType::SignedInt:
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return ctx.TypeVector(ctx.TypeInt(32, true), 4);
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case AttributeType::UnsignedInt:
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return ctx.U32[4];
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case AttributeType::Disabled:
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break;
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}
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throw InvalidArgument("Invalid attribute type {}", type);
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}
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} // Anonymous namespace
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void VectorTypes::Define(Sirit::Module& sirit_ctx, Id base_type, std::string_view name) {
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defs[0] = sirit_ctx.Name(base_type, name);
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std::array<char, 6> def_name;
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for (int i = 1; i < 4; ++i) {
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const std::string_view def_name_view(
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def_name.data(),
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fmt::format_to_n(def_name.data(), def_name.size(), "{}x{}", name, i + 1).size);
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defs[i] = sirit_ctx.Name(sirit_ctx.TypeVector(base_type, i + 1), def_name_view);
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}
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}
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EmitContext::EmitContext(const Profile& profile_, IR::Program& program, u32& binding)
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: Sirit::Module(profile_.supported_spirv), profile{profile_}, stage{program.stage} {
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AddCapability(spv::Capability::Shader);
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DefineCommonTypes(program.info);
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DefineCommonConstants();
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DefineInterfaces(program.info);
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DefineLocalMemory(program);
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DefineSharedMemory(program);
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DefineConstantBuffers(program.info, binding);
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DefineStorageBuffers(program.info, binding);
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DefineTextures(program.info, binding);
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DefineLabels(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.Inst()->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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// Void instructions are used for optional arguments (e.g. texture offsets)
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// They are not meant to be used in the SPIR-V module
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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 Constant(U32[1], 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 Constant(F32[1], value.F32());
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case IR::Type::F64:
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return Constant(F64[1], value.F64());
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case IR::Type::Label:
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return value.Label()->Definition<Id>();
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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::DefineCommonTypes(const Info& info) {
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void_id = TypeVoid();
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U1 = Name(TypeBool(), "u1");
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F32.Define(*this, TypeFloat(32), "f32");
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U32.Define(*this, TypeInt(32, false), "u32");
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private_u32 = Name(TypePointer(spv::StorageClass::Private, U32[1]), "private_u32");
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input_f32 = Name(TypePointer(spv::StorageClass::Input, F32[1]), "input_f32");
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input_u32 = Name(TypePointer(spv::StorageClass::Input, U32[1]), "input_u32");
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input_s32 = Name(TypePointer(spv::StorageClass::Input, TypeInt(32, true)), "input_s32");
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output_f32 = Name(TypePointer(spv::StorageClass::Output, F32[1]), "output_f32");
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if (info.uses_int8) {
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AddCapability(spv::Capability::Int8);
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U8 = Name(TypeInt(8, false), "u8");
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S8 = Name(TypeInt(8, true), "s8");
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}
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if (info.uses_int16) {
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AddCapability(spv::Capability::Int16);
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U16 = Name(TypeInt(16, false), "u16");
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S16 = Name(TypeInt(16, true), "s16");
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}
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if (info.uses_int64) {
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AddCapability(spv::Capability::Int64);
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U64 = Name(TypeInt(64, false), "u64");
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}
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if (info.uses_fp16) {
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AddCapability(spv::Capability::Float16);
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F16.Define(*this, TypeFloat(16), "f16");
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}
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if (info.uses_fp64) {
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AddCapability(spv::Capability::Float64);
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F64.Define(*this, TypeFloat(64), "f64");
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}
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if (info.stores_clip_distance) {
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Array8F32 = Name(TypeArray(F32[1], Constant(U32[1], 8)), "array_8_f32");
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}
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}
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void EmitContext::DefineCommonConstants() {
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true_value = ConstantTrue(U1);
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false_value = ConstantFalse(U1);
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u32_zero_value = Constant(U32[1], 0U);
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f32_zero_value = Constant(F32[1], 0.0f);
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}
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void EmitContext::DefineInterfaces(const Info& info) {
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DefineInputs(info);
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DefineOutputs(info);
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}
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void EmitContext::DefineLocalMemory(const IR::Program& program) {
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if (program.local_memory_size == 0) {
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return;
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}
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const u32 num_elements{Common::DivCeil(program.local_memory_size, 4U)};
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const Id type{TypeArray(U32[1], Constant(U32[1], num_elements))};
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const Id pointer{TypePointer(spv::StorageClass::Private, type)};
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local_memory = AddGlobalVariable(pointer, spv::StorageClass::Private);
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if (profile.supported_spirv >= 0x00010400) {
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interfaces.push_back(local_memory);
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}
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}
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void EmitContext::DefineSharedMemory(const IR::Program& program) {
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if (program.shared_memory_size == 0) {
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return;
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}
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const auto make{[&](Id element_type, u32 element_size) {
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const u32 num_elements{Common::DivCeil(program.shared_memory_size, element_size)};
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const Id array_type{TypeArray(element_type, Constant(U32[1], num_elements))};
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Decorate(array_type, spv::Decoration::ArrayStride, element_size);
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const Id struct_type{TypeStruct(array_type)};
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MemberDecorate(struct_type, 0U, spv::Decoration::Offset, 0U);
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Decorate(struct_type, spv::Decoration::Block);
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const Id pointer{TypePointer(spv::StorageClass::Workgroup, struct_type)};
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const Id element_pointer{TypePointer(spv::StorageClass::Workgroup, element_type)};
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const Id variable{AddGlobalVariable(pointer, spv::StorageClass::Workgroup)};
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Decorate(variable, spv::Decoration::Aliased);
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interfaces.push_back(variable);
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return std::make_pair(variable, element_pointer);
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}};
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if (profile.support_explicit_workgroup_layout) {
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AddExtension("SPV_KHR_workgroup_memory_explicit_layout");
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AddCapability(spv::Capability::WorkgroupMemoryExplicitLayoutKHR);
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if (program.info.uses_int8) {
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AddCapability(spv::Capability::WorkgroupMemoryExplicitLayout8BitAccessKHR);
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std::tie(shared_memory_u8, shared_u8) = make(U8, 1);
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}
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if (program.info.uses_int16) {
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AddCapability(spv::Capability::WorkgroupMemoryExplicitLayout16BitAccessKHR);
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std::tie(shared_memory_u16, shared_u16) = make(U16, 2);
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}
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std::tie(shared_memory_u32, shared_u32) = make(U32[1], 4);
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std::tie(shared_memory_u32x2, shared_u32x2) = make(U32[2], 8);
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std::tie(shared_memory_u32x4, shared_u32x4) = make(U32[4], 16);
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}
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const u32 num_elements{Common::DivCeil(program.shared_memory_size, 4U)};
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const Id type{TypeArray(U32[1], Constant(U32[1], num_elements))};
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const Id pointer_type{TypePointer(spv::StorageClass::Workgroup, type)};
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shared_u32 = TypePointer(spv::StorageClass::Workgroup, U32[1]);
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shared_memory_u32 = AddGlobalVariable(pointer_type, spv::StorageClass::Workgroup);
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interfaces.push_back(shared_memory_u32);
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const Id func_type{TypeFunction(void_id, U32[1], U32[1])};
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const auto make_function{[&](u32 mask, u32 size) {
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const Id loop_header{OpLabel()};
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const Id continue_block{OpLabel()};
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const Id merge_block{OpLabel()};
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const Id func{OpFunction(void_id, spv::FunctionControlMask::MaskNone, func_type)};
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const Id offset{OpFunctionParameter(U32[1])};
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const Id insert_value{OpFunctionParameter(U32[1])};
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AddLabel();
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OpBranch(loop_header);
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AddLabel(loop_header);
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const Id word_offset{OpShiftRightArithmetic(U32[1], offset, Constant(U32[1], 2U))};
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const Id shift_offset{OpShiftLeftLogical(U32[1], offset, Constant(U32[1], 3U))};
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const Id bit_offset{OpBitwiseAnd(U32[1], shift_offset, Constant(U32[1], mask))};
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const Id count{Constant(U32[1], size)};
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OpLoopMerge(merge_block, continue_block, spv::LoopControlMask::MaskNone);
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OpBranch(continue_block);
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AddLabel(continue_block);
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const Id word_pointer{OpAccessChain(shared_u32, shared_memory_u32, word_offset)};
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const Id old_value{OpLoad(U32[1], word_pointer)};
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const Id new_value{OpBitFieldInsert(U32[1], old_value, insert_value, bit_offset, count)};
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const Id atomic_res{OpAtomicCompareExchange(U32[1], word_pointer, Constant(U32[1], 1U),
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u32_zero_value, u32_zero_value, new_value,
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old_value)};
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const Id success{OpIEqual(U1, atomic_res, old_value)};
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OpBranchConditional(success, merge_block, loop_header);
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AddLabel(merge_block);
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OpReturn();
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OpFunctionEnd();
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return func;
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}};
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if (program.info.uses_int8) {
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shared_store_u8_func = make_function(24, 8);
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}
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if (program.info.uses_int16) {
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shared_store_u16_func = make_function(16, 16);
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}
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}
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void EmitContext::DefineConstantBuffers(const Info& info, u32& binding) {
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if (info.constant_buffer_descriptors.empty()) {
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return;
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}
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if (True(info.used_constant_buffer_types & IR::Type::U8)) {
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DefineConstantBuffers(info, &UniformDefinitions::U8, binding, U8, 'u', sizeof(u8));
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DefineConstantBuffers(info, &UniformDefinitions::S8, binding, S8, 's', sizeof(s8));
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}
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if (True(info.used_constant_buffer_types & IR::Type::U16)) {
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DefineConstantBuffers(info, &UniformDefinitions::U16, binding, U16, 'u', sizeof(u16));
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DefineConstantBuffers(info, &UniformDefinitions::S16, binding, S16, 's', sizeof(s16));
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}
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if (True(info.used_constant_buffer_types & IR::Type::U32)) {
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DefineConstantBuffers(info, &UniformDefinitions::U32, binding, U32[1], 'u', sizeof(u32));
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}
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if (True(info.used_constant_buffer_types & IR::Type::F32)) {
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DefineConstantBuffers(info, &UniformDefinitions::F32, binding, F32[1], 'f', sizeof(f32));
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}
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if (True(info.used_constant_buffer_types & IR::Type::U64)) {
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DefineConstantBuffers(info, &UniformDefinitions::U64, binding, U64, 'u', sizeof(u64));
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}
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for (const ConstantBufferDescriptor& desc : info.constant_buffer_descriptors) {
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binding += desc.count;
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}
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}
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void EmitContext::DefineStorageBuffers(const Info& info, u32& binding) {
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if (info.storage_buffers_descriptors.empty()) {
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return;
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}
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AddExtension("SPV_KHR_storage_buffer_storage_class");
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const Id array_type{TypeRuntimeArray(U32[1])};
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Decorate(array_type, spv::Decoration::ArrayStride, 4U);
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const Id struct_type{TypeStruct(array_type)};
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Name(struct_type, "ssbo_block");
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Decorate(struct_type, spv::Decoration::Block);
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MemberName(struct_type, 0, "data");
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MemberDecorate(struct_type, 0, spv::Decoration::Offset, 0U);
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const Id storage_type{TypePointer(spv::StorageClass::StorageBuffer, struct_type)};
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storage_u32 = TypePointer(spv::StorageClass::StorageBuffer, U32[1]);
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u32 index{};
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for (const StorageBufferDescriptor& desc : info.storage_buffers_descriptors) {
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const Id id{AddGlobalVariable(storage_type, spv::StorageClass::StorageBuffer)};
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Decorate(id, spv::Decoration::Binding, binding);
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Decorate(id, spv::Decoration::DescriptorSet, 0U);
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Name(id, fmt::format("ssbo{}", index));
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if (profile.supported_spirv >= 0x00010400) {
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interfaces.push_back(id);
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}
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std::fill_n(ssbos.data() + index, desc.count, id);
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index += desc.count;
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binding += desc.count;
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}
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}
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void EmitContext::DefineTextures(const Info& info, u32& binding) {
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textures.reserve(info.texture_descriptors.size());
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for (const TextureDescriptor& desc : info.texture_descriptors) {
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if (desc.count != 1) {
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throw NotImplementedException("Array of textures");
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}
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const Id image_type{ImageType(*this, desc)};
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const Id sampled_type{TypeSampledImage(image_type)};
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const Id pointer_type{TypePointer(spv::StorageClass::UniformConstant, sampled_type)};
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const Id id{AddGlobalVariable(pointer_type, spv::StorageClass::UniformConstant)};
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Decorate(id, spv::Decoration::Binding, binding);
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Decorate(id, spv::Decoration::DescriptorSet, 0U);
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Name(id, fmt::format("tex{}_{:02x}", desc.cbuf_index, desc.cbuf_offset));
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for (u32 index = 0; index < desc.count; ++index) {
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// TODO: Pass count info
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textures.push_back(TextureDefinition{
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.id{id},
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.sampled_type{sampled_type},
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.image_type{image_type},
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});
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}
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if (profile.supported_spirv >= 0x00010400) {
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interfaces.push_back(id);
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}
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binding += desc.count;
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}
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}
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void EmitContext::DefineLabels(IR::Program& program) {
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for (IR::Block* const block : program.blocks) {
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block->SetDefinition(OpLabel());
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}
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}
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void EmitContext::DefineInputs(const Info& info) {
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if (info.uses_workgroup_id) {
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workgroup_id = DefineInput(*this, U32[3], spv::BuiltIn::WorkgroupId);
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}
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if (info.uses_local_invocation_id) {
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local_invocation_id = DefineInput(*this, U32[3], spv::BuiltIn::LocalInvocationId);
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}
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if (info.uses_subgroup_invocation_id ||
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(profile.warp_size_potentially_larger_than_guest && info.uses_subgroup_vote)) {
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subgroup_local_invocation_id =
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DefineInput(*this, U32[1], spv::BuiltIn::SubgroupLocalInvocationId);
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}
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if (info.uses_fswzadd) {
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const Id f32_one{Constant(F32[1], 1.0f)};
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const Id f32_minus_one{Constant(F32[1], -1.0f)};
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const Id f32_zero{Constant(F32[1], 0.0f)};
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fswzadd_lut_a = ConstantComposite(F32[4], f32_minus_one, f32_one, f32_minus_one, f32_zero);
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fswzadd_lut_b =
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ConstantComposite(F32[4], f32_minus_one, f32_minus_one, f32_one, f32_minus_one);
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}
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if (info.loads_position) {
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const bool is_fragment{stage != Stage::Fragment};
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const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::Position : spv::BuiltIn::FragCoord};
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input_position = DefineInput(*this, F32[4], built_in);
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|
}
|
|
if (info.loads_instance_id) {
|
|
if (profile.support_vertex_instance_id) {
|
|
instance_id = DefineInput(*this, U32[1], spv::BuiltIn::InstanceId);
|
|
} else {
|
|
instance_index = DefineInput(*this, U32[1], spv::BuiltIn::InstanceIndex);
|
|
base_instance = DefineInput(*this, U32[1], spv::BuiltIn::BaseInstance);
|
|
}
|
|
}
|
|
if (info.loads_vertex_id) {
|
|
if (profile.support_vertex_instance_id) {
|
|
vertex_id = DefineInput(*this, U32[1], spv::BuiltIn::VertexId);
|
|
} else {
|
|
vertex_index = DefineInput(*this, U32[1], spv::BuiltIn::VertexIndex);
|
|
base_vertex = DefineInput(*this, U32[1], spv::BuiltIn::BaseVertex);
|
|
}
|
|
}
|
|
if (info.loads_front_face) {
|
|
front_face = DefineInput(*this, U1, spv::BuiltIn::FrontFacing);
|
|
}
|
|
if (info.loads_point_coord) {
|
|
point_coord = DefineInput(*this, F32[2], spv::BuiltIn::PointCoord);
|
|
}
|
|
for (size_t index = 0; index < info.input_generics.size(); ++index) {
|
|
const InputVarying generic{info.input_generics[index]};
|
|
if (!generic.used) {
|
|
continue;
|
|
}
|
|
const AttributeType input_type{profile.generic_input_types[index]};
|
|
if (input_type == AttributeType::Disabled) {
|
|
continue;
|
|
}
|
|
const Id type{GetAttributeType(*this, input_type)};
|
|
const Id id{DefineInput(*this, type)};
|
|
Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
|
|
Name(id, fmt::format("in_attr{}", index));
|
|
input_generics[index] = id;
|
|
|
|
if (stage != Stage::Fragment) {
|
|
continue;
|
|
}
|
|
switch (generic.interpolation) {
|
|
case Interpolation::Smooth:
|
|
// Default
|
|
// Decorate(id, spv::Decoration::Smooth);
|
|
break;
|
|
case Interpolation::NoPerspective:
|
|
Decorate(id, spv::Decoration::NoPerspective);
|
|
break;
|
|
case Interpolation::Flat:
|
|
Decorate(id, spv::Decoration::Flat);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void EmitContext::DefineConstantBuffers(const Info& info, Id UniformDefinitions::*member_type,
|
|
u32 binding, Id type, char type_char, u32 element_size) {
|
|
const Id array_type{TypeArray(type, Constant(U32[1], 65536U / element_size))};
|
|
Decorate(array_type, spv::Decoration::ArrayStride, element_size);
|
|
|
|
const Id struct_type{TypeStruct(array_type)};
|
|
Name(struct_type, fmt::format("cbuf_block_{}{}", type_char, element_size * CHAR_BIT));
|
|
Decorate(struct_type, spv::Decoration::Block);
|
|
MemberName(struct_type, 0, "data");
|
|
MemberDecorate(struct_type, 0, spv::Decoration::Offset, 0U);
|
|
|
|
const Id struct_pointer_type{TypePointer(spv::StorageClass::Uniform, struct_type)};
|
|
const Id uniform_type{TypePointer(spv::StorageClass::Uniform, type)};
|
|
uniform_types.*member_type = uniform_type;
|
|
|
|
for (const ConstantBufferDescriptor& desc : info.constant_buffer_descriptors) {
|
|
const Id id{AddGlobalVariable(struct_pointer_type, spv::StorageClass::Uniform)};
|
|
Decorate(id, spv::Decoration::Binding, binding);
|
|
Decorate(id, spv::Decoration::DescriptorSet, 0U);
|
|
Name(id, fmt::format("c{}", desc.index));
|
|
for (size_t i = 0; i < desc.count; ++i) {
|
|
cbufs[desc.index + i].*member_type = id;
|
|
}
|
|
if (profile.supported_spirv >= 0x00010400) {
|
|
interfaces.push_back(id);
|
|
}
|
|
binding += desc.count;
|
|
}
|
|
}
|
|
|
|
void EmitContext::DefineOutputs(const Info& info) {
|
|
if (info.stores_position || stage == Stage::VertexB) {
|
|
output_position = DefineOutput(*this, F32[4], spv::BuiltIn::Position);
|
|
}
|
|
if (info.stores_point_size || profile.fixed_state_point_size) {
|
|
if (stage == Stage::Fragment) {
|
|
throw NotImplementedException("Storing PointSize in Fragment stage");
|
|
}
|
|
output_point_size = DefineOutput(*this, F32[1], spv::BuiltIn::PointSize);
|
|
}
|
|
if (info.stores_clip_distance) {
|
|
if (stage == Stage::Fragment) {
|
|
throw NotImplementedException("Storing PointSize in Fragment stage");
|
|
}
|
|
clip_distances = DefineOutput(*this, Array8F32, spv::BuiltIn::ClipDistance);
|
|
}
|
|
for (size_t i = 0; i < info.stores_generics.size(); ++i) {
|
|
if (info.stores_generics[i]) {
|
|
output_generics[i] = DefineOutput(*this, F32[4]);
|
|
Decorate(output_generics[i], spv::Decoration::Location, static_cast<u32>(i));
|
|
Name(output_generics[i], fmt::format("out_attr{}", i));
|
|
}
|
|
}
|
|
if (stage == Stage::Fragment) {
|
|
for (u32 index = 0; index < 8; ++index) {
|
|
if (!info.stores_frag_color[index]) {
|
|
continue;
|
|
}
|
|
frag_color[index] = DefineOutput(*this, F32[4]);
|
|
Decorate(frag_color[index], spv::Decoration::Location, index);
|
|
Name(frag_color[index], fmt::format("frag_color{}", index));
|
|
}
|
|
if (info.stores_frag_depth) {
|
|
frag_depth = DefineOutput(*this, F32[1]);
|
|
Decorate(frag_depth, spv::Decoration::BuiltIn, spv::BuiltIn::FragDepth);
|
|
Name(frag_depth, "frag_depth");
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace Shader::Backend::SPIRV
|