mirror of
https://github.com/KytyPS5/KytyPS5.git
synced 2026-10-20 10:56:58 +02:00
nmzik
232 lines
10 KiB
C++
232 lines
10 KiB
C++
#include "common/assert.h"
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#include "graphics/guest_gpu/gpu_defs.h"
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#include "graphics/shader/recompiler/backend/spirv/SpirvEmitter.h"
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#include "graphics/shader/recompiler/backend/spirv/spirvEmitterInternal.h"
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#include "graphics/shader/recompiler/ir/ShaderIR.h"
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namespace Libs::Graphics::ShaderRecompiler::Spirv::Emitter {
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uint32_t PixelParameterLocation(const EmitterState& state, uint32_t attr) {
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std::array<uint32_t, 32> active_inputs {};
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uint32_t active_count = 0;
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for (const auto& input: state.inputs) {
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if (input.kind == IR::StageInputKind::Parameter) {
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active_inputs[active_count++] = input.location;
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}
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}
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return state.program.stage == ShaderType::Pixel
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? ShaderPixelParameterLocation(*state.input_info.pixel,
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{active_inputs.data(), active_count}, attr)
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: attr;
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}
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bool PixelParameterIsFlat(const EmitterState& state, uint32_t attr) {
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return state.program.stage == ShaderType::Pixel &&
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ShaderPixelParameterIsFlat(*state.input_info.pixel, attr);
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}
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bool PixelParameterIsCustom(const EmitterState& state, uint32_t attr) {
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return state.program.stage == ShaderType::Pixel &&
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ShaderPixelParameterIsCustom(*state.input_info.pixel, attr);
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}
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uint32_t OutputVariableForExport(const EmitterState& state, const IR::ExportInfo& exp) {
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if (exp.kind == IR::ExportTargetKind::Position && exp.index == 0) {
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return state.per_vertex_variable;
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}
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if (exp.kind == IR::ExportTargetKind::MrtZ) {
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return state.depth_variable;
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}
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for (const auto& binding: state.outputs) {
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const auto expected_kind = exp.kind == IR::ExportTargetKind::Mrt
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? IR::StageOutputKind::Mrt
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: IR::StageOutputKind::Parameter;
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if (binding.kind == expected_kind && binding.index == exp.index) {
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return binding.variable_id;
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}
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}
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return 0;
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}
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uint32_t ConstantU32(EmitterState& state, uint32_t value);
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[[noreturn]] void ExitDescriptorBindingFailure(const EmitterState& state,
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IR::DescriptorBindingKind kind, uint32_t resource,
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const char* reason) {
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EXIT("shader binding resolution failed during SPIR-V emit: hash=0x%016" PRIx64
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" stage=%u resource=%" PRIu32 " binding_kind=%u reason=%s\n",
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state.program.shader_hash, static_cast<unsigned>(state.program.stage), resource,
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static_cast<unsigned>(kind), reason);
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std::abort();
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}
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uint32_t ResourceForDescriptor(const EmitterState& state, IR::DescriptorBindingKind kind,
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uint32_t resource) {
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const auto* descriptor = IR::FindBinding(state.program.bindings, kind);
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if (descriptor == nullptr) {
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ExitDescriptorBindingFailure(state, kind, resource, "descriptor group was not allocated");
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}
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const auto found =
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std::find(descriptor->resources.begin(), descriptor->resources.end(), resource);
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if (found == descriptor->resources.end()) {
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ExitDescriptorBindingFailure(state, kind, resource,
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"resource is absent from descriptor group");
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}
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return static_cast<uint32_t>(found - descriptor->resources.begin());
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}
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uint32_t DescriptorElementPointer(EmitterState& state, uint32_t result_ptr_type,
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uint32_t variable_id, uint32_t array_index,
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IR::DescriptorBindingKind kind, uint32_t resource,
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const char* variable_name) {
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if (variable_id == 0) {
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ExitDescriptorBindingFailure(state, kind, resource, variable_name);
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}
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const auto pointer = state.builder.AllocateId();
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state.builder.AddFunction(spv::OpAccessChain, result_ptr_type, pointer, variable_id,
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ConstantU32(state, array_index));
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return pointer;
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}
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const ImageDimensionInfo& ImageDimensionInfoFor(ImageDimension dimension) {
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for (const auto& info: ImageDimensions) {
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if (info.dimension == dimension) {
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return info;
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}
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}
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EXIT("SPIR-V image dimension %u is invalid\n", static_cast<uint32_t>(dimension));
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std::abort();
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}
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uint32_t ImageScalarType(EmitterState& state, Prospero::TextureNumericClass numeric_class) {
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switch (numeric_class) {
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case Prospero::TextureNumericClass::Float: return TypeF32(state);
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case Prospero::TextureNumericClass::Uint: return TypeU32(state);
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case Prospero::TextureNumericClass::Sint: return TypeI32(state);
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case Prospero::TextureNumericClass::Unsupported: break;
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}
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EXIT("invalid image numeric class");
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}
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uint32_t ImageVectorType(EmitterState& state, Prospero::TextureNumericClass numeric_class,
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uint32_t components) {
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return state.builder.Type(spv::OpTypeVector, ImageScalarType(state, numeric_class), components);
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}
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uint32_t ImageType(EmitterState& state, const IR::ImageResource& image) {
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uint32_t sampled = 0;
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uint32_t format = spv::ImageFormatUnknown;
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if (image.resource_class == IR::ImageResourceClass::Sampled) {
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EXIT_IF(image.atomic);
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sampled = 1;
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} else if (image.resource_class == IR::ImageResourceClass::Storage) {
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EXIT_IF(image.numeric_class == Prospero::TextureNumericClass::Sint ||
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image.numeric_class == Prospero::TextureNumericClass::Unsupported);
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sampled = 2;
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if (image.atomic) {
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EXIT_IF(image.numeric_class != Prospero::TextureNumericClass::Uint);
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format = image.atomic64 ? spv::ImageFormatR64ui : spv::ImageFormatR32ui;
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if (image.atomic64) {
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state.builder.RequireExtension("SPV_EXT_shader_image_int64");
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state.builder.RequireCapability(spv::CapabilityInt64);
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state.builder.RequireCapability(spv::CapabilityInt64Atomics);
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state.builder.RequireCapability(spv::CapabilityInt64ImageEXT);
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}
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}
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} else {
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EXIT("invalid image resource class");
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}
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const auto& info = ImageDimensionInfoFor(image.dimension);
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const auto scalar_type = image.atomic64 ? TypeScalarU64(state)
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: ImageScalarType(state, image.numeric_class);
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return state.builder.Type(spv::OpTypeImage, scalar_type,
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info.spirv_dimension, image.depth_compare ? 1u : 0u, info.arrayed,
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info.multisampled, sampled, format);
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}
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uint32_t ImageViewSizeType(EmitterState& state, ImageDimension dimension) {
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switch (ImageDimensionInfoFor(dimension).coordinate_components) {
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case 1u: return TypeU32(state);
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case 2u: return TypeU32Vector(state, 2);
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case 3u: return TypeU32Vector(state, 3);
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default: return 0;
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}
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}
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uint32_t LoadImageDescriptor(EmitterState& state, uint32_t resource, uint32_t mip) {
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const auto pointer = ImageDescriptorPointer(state, resource, mip);
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const auto image = state.builder.AllocateId();
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state.builder.AddFunction(spv::OpLoad, ImageType(state, state.program.info.images.at(resource)),
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image, pointer);
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return image;
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}
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uint32_t LoadSamplerDescriptor(EmitterState& state, uint32_t sampler) {
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const auto array_index =
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ResourceForDescriptor(state, IR::DescriptorBindingKind::Samplers, sampler);
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const auto sampler_type = state.builder.Type(spv::OpTypeSampler);
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const auto pointer_type =
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state.builder.Type(spv::OpTypePointer, spv::StorageClassUniformConstant, sampler_type);
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const auto pointer = DescriptorElementPointer(
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state, pointer_type, state.sampler_variable, array_index,
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IR::DescriptorBindingKind::Samplers, sampler, "sampler descriptor array was not emitted");
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const auto sampler_id = state.builder.AllocateId();
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state.builder.AddFunction(spv::OpLoad, sampler_type, sampler_id, pointer);
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return sampler_id;
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}
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uint32_t MakeSampledImage(EmitterState& state, uint32_t resource, uint32_t sampler_id, uint32_t mip) {
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const auto& image_resource = state.program.info.images.at(resource);
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EXIT_IF(image_resource.resource_class != IR::ImageResourceClass::Sampled);
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const auto image = LoadImageDescriptor(state, resource, mip);
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const auto sampled_image = state.builder.AllocateId();
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const auto sampled_type =
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state.builder.Type(spv::OpTypeSampledImage, ImageType(state, image_resource));
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state.builder.AddFunction(spv::OpSampledImage, sampled_type, sampled_image, image, sampler_id);
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return sampled_image;
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}
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uint32_t ImageDescriptorPointer(EmitterState& state, uint32_t resource, uint32_t mip) {
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const auto& image = state.program.info.images.at(resource);
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EXIT_IF(mip >= image.mip_count);
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const auto kind = IR::DescriptorBindingForImage(image);
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EXIT_IF(!kind.has_value());
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const auto array_index = ResourceForDescriptor(state, *kind, resource) + mip;
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const auto pointer_type = state.builder.Type(
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spv::OpTypePointer, spv::StorageClassUniformConstant, ImageType(state, image));
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const auto variable = state.image_variables[IR::ImageBindingIndex(*kind)];
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return DescriptorElementPointer(state, pointer_type, variable, array_index, *kind, resource,
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"image descriptor array was not emitted");
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}
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void EmitStorageImageWrite(EmitterState& state, uint32_t resource, uint32_t mip_lod, uint32_t coord,
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uint32_t texel) {
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const auto& image = state.program.info.images.at(resource);
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EXIT_IF(image.resource_class != IR::ImageResourceClass::Storage);
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if (!image.atomic) {
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state.builder.RequireCapability(spv::CapabilityStorageImageWriteWithoutFormat);
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}
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const auto EmitWrite = [&](uint32_t mip) {
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state.builder.AddFunction(spv::OpImageWrite, LoadImageDescriptor(state, resource, mip),
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coord, texel);
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};
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if (image.mip_mode != IR::ImageMipMode::Dynamic) {
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EmitWrite(0);
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return;
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}
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EmitIndexSwitch(state, mip_lod, image.mip_count, 0, EmitWrite);
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}
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spv::ExecutionModel ExecutionModelForStage(ShaderType stage) {
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switch (stage) {
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case ShaderType::Local:
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case ShaderType::Vertex: return spv::ExecutionModelVertex;
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case ShaderType::TessellationControl: return spv::ExecutionModelTessellationControl;
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case ShaderType::TessellationEvaluation: return spv::ExecutionModelTessellationEvaluation;
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case ShaderType::Mesh: return spv::ExecutionModelMeshEXT; // MeshEXT
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case ShaderType::Pixel: return spv::ExecutionModelFragment;
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default: return spv::ExecutionModelGLCompute;
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}
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}
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} // namespace Libs::Graphics::ShaderRecompiler::Spirv::Emitter
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