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-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.cpp3166
-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.h99
2 files changed, 0 insertions, 3265 deletions
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
deleted file mode 100644
index c6846d886..000000000
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
+++ /dev/null
@@ -1,3166 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <functional>
-#include <limits>
-#include <map>
-#include <optional>
-#include <type_traits>
-#include <unordered_map>
-#include <utility>
-
-#include <fmt/format.h>
-
-#include <sirit/sirit.h>
-
-#include "common/alignment.h"
-#include "common/assert.h"
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "video_core/engines/maxwell_3d.h"
-#include "video_core/engines/shader_bytecode.h"
-#include "video_core/engines/shader_header.h"
-#include "video_core/engines/shader_type.h"
-#include "video_core/renderer_vulkan/vk_shader_decompiler.h"
-#include "video_core/shader/node.h"
-#include "video_core/shader/shader_ir.h"
-#include "video_core/shader/transform_feedback.h"
-#include "video_core/vulkan_common/vulkan_device.h"
-
-namespace Vulkan {
-
-namespace {
-
-using Sirit::Id;
-using Tegra::Engines::ShaderType;
-using Tegra::Shader::Attribute;
-using Tegra::Shader::PixelImap;
-using Tegra::Shader::Register;
-using namespace VideoCommon::Shader;
-
-using Maxwell = Tegra::Engines::Maxwell3D::Regs;
-using Operation = const OperationNode&;
-
-class ASTDecompiler;
-class ExprDecompiler;
-
-// TODO(Rodrigo): Use rasterizer's value
-constexpr u32 MaxConstBufferFloats = 0x4000;
-constexpr u32 MaxConstBufferElements = MaxConstBufferFloats / 4;
-
-constexpr u32 NumInputPatches = 32; // This value seems to be the standard
-
-enum class Type { Void, Bool, Bool2, Float, Int, Uint, HalfFloat };
-
-class Expression final {
-public:
- Expression(Id id_, Type type_) : id{id_}, type{type_} {
- ASSERT(type_ != Type::Void);
- }
- Expression() : type{Type::Void} {}
-
- Id id{};
- Type type{};
-};
-static_assert(std::is_standard_layout_v<Expression>);
-
-struct TexelBuffer {
- Id image_type{};
- Id image{};
-};
-
-struct SampledImage {
- Id image_type{};
- Id sampler_type{};
- Id sampler_pointer_type{};
- Id variable{};
-};
-
-struct StorageImage {
- Id image_type{};
- Id image{};
-};
-
-struct AttributeType {
- Type type;
- Id scalar;
- Id vector;
-};
-
-struct VertexIndices {
- std::optional<u32> position;
- std::optional<u32> layer;
- std::optional<u32> viewport;
- std::optional<u32> point_size;
- std::optional<u32> clip_distances;
-};
-
-struct GenericVaryingDescription {
- Id id = nullptr;
- u32 first_element = 0;
- bool is_scalar = false;
-};
-
-spv::Dim GetSamplerDim(const SamplerEntry& sampler) {
- ASSERT(!sampler.is_buffer);
- switch (sampler.type) {
- case Tegra::Shader::TextureType::Texture1D:
- return spv::Dim::Dim1D;
- case Tegra::Shader::TextureType::Texture2D:
- return spv::Dim::Dim2D;
- case Tegra::Shader::TextureType::Texture3D:
- return spv::Dim::Dim3D;
- case Tegra::Shader::TextureType::TextureCube:
- return spv::Dim::Cube;
- default:
- UNIMPLEMENTED_MSG("Unimplemented sampler type={}", sampler.type);
- return spv::Dim::Dim2D;
- }
-}
-
-std::pair<spv::Dim, bool> GetImageDim(const ImageEntry& image) {
- switch (image.type) {
- case Tegra::Shader::ImageType::Texture1D:
- return {spv::Dim::Dim1D, false};
- case Tegra::Shader::ImageType::TextureBuffer:
- return {spv::Dim::Buffer, false};
- case Tegra::Shader::ImageType::Texture1DArray:
- return {spv::Dim::Dim1D, true};
- case Tegra::Shader::ImageType::Texture2D:
- return {spv::Dim::Dim2D, false};
- case Tegra::Shader::ImageType::Texture2DArray:
- return {spv::Dim::Dim2D, true};
- case Tegra::Shader::ImageType::Texture3D:
- return {spv::Dim::Dim3D, false};
- default:
- UNIMPLEMENTED_MSG("Unimplemented image type={}", image.type);
- return {spv::Dim::Dim2D, false};
- }
-}
-
-/// Returns the number of vertices present in a primitive topology.
-u32 GetNumPrimitiveTopologyVertices(Maxwell::PrimitiveTopology primitive_topology) {
- switch (primitive_topology) {
- case Maxwell::PrimitiveTopology::Points:
- return 1;
- case Maxwell::PrimitiveTopology::Lines:
- case Maxwell::PrimitiveTopology::LineLoop:
- case Maxwell::PrimitiveTopology::LineStrip:
- return 2;
- case Maxwell::PrimitiveTopology::Triangles:
- case Maxwell::PrimitiveTopology::TriangleStrip:
- case Maxwell::PrimitiveTopology::TriangleFan:
- return 3;
- case Maxwell::PrimitiveTopology::LinesAdjacency:
- case Maxwell::PrimitiveTopology::LineStripAdjacency:
- return 4;
- case Maxwell::PrimitiveTopology::TrianglesAdjacency:
- case Maxwell::PrimitiveTopology::TriangleStripAdjacency:
- return 6;
- case Maxwell::PrimitiveTopology::Quads:
- UNIMPLEMENTED_MSG("Quads");
- return 3;
- case Maxwell::PrimitiveTopology::QuadStrip:
- UNIMPLEMENTED_MSG("QuadStrip");
- return 3;
- case Maxwell::PrimitiveTopology::Polygon:
- UNIMPLEMENTED_MSG("Polygon");
- return 3;
- case Maxwell::PrimitiveTopology::Patches:
- UNIMPLEMENTED_MSG("Patches");
- return 3;
- default:
- UNREACHABLE();
- return 3;
- }
-}
-
-spv::ExecutionMode GetExecutionMode(Maxwell::TessellationPrimitive primitive) {
- switch (primitive) {
- case Maxwell::TessellationPrimitive::Isolines:
- return spv::ExecutionMode::Isolines;
- case Maxwell::TessellationPrimitive::Triangles:
- return spv::ExecutionMode::Triangles;
- case Maxwell::TessellationPrimitive::Quads:
- return spv::ExecutionMode::Quads;
- }
- UNREACHABLE();
- return spv::ExecutionMode::Triangles;
-}
-
-spv::ExecutionMode GetExecutionMode(Maxwell::TessellationSpacing spacing) {
- switch (spacing) {
- case Maxwell::TessellationSpacing::Equal:
- return spv::ExecutionMode::SpacingEqual;
- case Maxwell::TessellationSpacing::FractionalOdd:
- return spv::ExecutionMode::SpacingFractionalOdd;
- case Maxwell::TessellationSpacing::FractionalEven:
- return spv::ExecutionMode::SpacingFractionalEven;
- }
- UNREACHABLE();
- return spv::ExecutionMode::SpacingEqual;
-}
-
-spv::ExecutionMode GetExecutionMode(Maxwell::PrimitiveTopology input_topology) {
- switch (input_topology) {
- case Maxwell::PrimitiveTopology::Points:
- return spv::ExecutionMode::InputPoints;
- case Maxwell::PrimitiveTopology::Lines:
- case Maxwell::PrimitiveTopology::LineLoop:
- case Maxwell::PrimitiveTopology::LineStrip:
- return spv::ExecutionMode::InputLines;
- case Maxwell::PrimitiveTopology::Triangles:
- case Maxwell::PrimitiveTopology::TriangleStrip:
- case Maxwell::PrimitiveTopology::TriangleFan:
- return spv::ExecutionMode::Triangles;
- case Maxwell::PrimitiveTopology::LinesAdjacency:
- case Maxwell::PrimitiveTopology::LineStripAdjacency:
- return spv::ExecutionMode::InputLinesAdjacency;
- case Maxwell::PrimitiveTopology::TrianglesAdjacency:
- case Maxwell::PrimitiveTopology::TriangleStripAdjacency:
- return spv::ExecutionMode::InputTrianglesAdjacency;
- case Maxwell::PrimitiveTopology::Quads:
- UNIMPLEMENTED_MSG("Quads");
- return spv::ExecutionMode::Triangles;
- case Maxwell::PrimitiveTopology::QuadStrip:
- UNIMPLEMENTED_MSG("QuadStrip");
- return spv::ExecutionMode::Triangles;
- case Maxwell::PrimitiveTopology::Polygon:
- UNIMPLEMENTED_MSG("Polygon");
- return spv::ExecutionMode::Triangles;
- case Maxwell::PrimitiveTopology::Patches:
- UNIMPLEMENTED_MSG("Patches");
- return spv::ExecutionMode::Triangles;
- }
- UNREACHABLE();
- return spv::ExecutionMode::Triangles;
-}
-
-spv::ExecutionMode GetExecutionMode(Tegra::Shader::OutputTopology output_topology) {
- switch (output_topology) {
- case Tegra::Shader::OutputTopology::PointList:
- return spv::ExecutionMode::OutputPoints;
- case Tegra::Shader::OutputTopology::LineStrip:
- return spv::ExecutionMode::OutputLineStrip;
- case Tegra::Shader::OutputTopology::TriangleStrip:
- return spv::ExecutionMode::OutputTriangleStrip;
- default:
- UNREACHABLE();
- return spv::ExecutionMode::OutputPoints;
- }
-}
-
-/// Returns true if an attribute index is one of the 32 generic attributes
-constexpr bool IsGenericAttribute(Attribute::Index attribute) {
- return attribute >= Attribute::Index::Attribute_0 &&
- attribute <= Attribute::Index::Attribute_31;
-}
-
-/// Returns the location of a generic attribute
-u32 GetGenericAttributeLocation(Attribute::Index attribute) {
- ASSERT(IsGenericAttribute(attribute));
- return static_cast<u32>(attribute) - static_cast<u32>(Attribute::Index::Attribute_0);
-}
-
-/// Returns true if an object has to be treated as precise
-bool IsPrecise(Operation operand) {
- const auto& meta{operand.GetMeta()};
- if (std::holds_alternative<MetaArithmetic>(meta)) {
- return std::get<MetaArithmetic>(meta).precise;
- }
- return false;
-}
-
-class SPIRVDecompiler final : public Sirit::Module {
-public:
- explicit SPIRVDecompiler(const Device& device_, const ShaderIR& ir_, ShaderType stage_,
- const Registry& registry_, const Specialization& specialization_)
- : Module(0x00010300), device{device_}, ir{ir_}, stage{stage_}, header{ir_.GetHeader()},
- registry{registry_}, specialization{specialization_} {
- if (stage_ != ShaderType::Compute) {
- transform_feedback = BuildTransformFeedback(registry_.GetGraphicsInfo());
- }
-
- AddCapability(spv::Capability::Shader);
- AddCapability(spv::Capability::UniformAndStorageBuffer16BitAccess);
- AddCapability(spv::Capability::ImageQuery);
- AddCapability(spv::Capability::Image1D);
- AddCapability(spv::Capability::ImageBuffer);
- AddCapability(spv::Capability::ImageGatherExtended);
- AddCapability(spv::Capability::SampledBuffer);
- AddCapability(spv::Capability::StorageImageWriteWithoutFormat);
- AddCapability(spv::Capability::DrawParameters);
- AddCapability(spv::Capability::SubgroupBallotKHR);
- AddCapability(spv::Capability::SubgroupVoteKHR);
- AddExtension("SPV_KHR_16bit_storage");
- AddExtension("SPV_KHR_shader_ballot");
- AddExtension("SPV_KHR_subgroup_vote");
- AddExtension("SPV_KHR_storage_buffer_storage_class");
- AddExtension("SPV_KHR_variable_pointers");
- AddExtension("SPV_KHR_shader_draw_parameters");
-
- if (!transform_feedback.empty()) {
- if (device.IsExtTransformFeedbackSupported()) {
- AddCapability(spv::Capability::TransformFeedback);
- } else {
- LOG_ERROR(Render_Vulkan, "Shader requires transform feedbacks but these are not "
- "supported on this device");
- }
- }
- if (ir.UsesLayer() || ir.UsesViewportIndex()) {
- if (ir.UsesViewportIndex()) {
- AddCapability(spv::Capability::MultiViewport);
- }
- if (stage != ShaderType::Geometry && device.IsExtShaderViewportIndexLayerSupported()) {
- AddExtension("SPV_EXT_shader_viewport_index_layer");
- AddCapability(spv::Capability::ShaderViewportIndexLayerEXT);
- }
- }
- if (device.IsFormatlessImageLoadSupported()) {
- AddCapability(spv::Capability::StorageImageReadWithoutFormat);
- }
- if (device.IsFloat16Supported()) {
- AddCapability(spv::Capability::Float16);
- }
- t_scalar_half = Name(TypeFloat(device_.IsFloat16Supported() ? 16 : 32), "scalar_half");
- t_half = Name(TypeVector(t_scalar_half, 2), "half");
-
- const Id main = Decompile();
-
- switch (stage) {
- case ShaderType::Vertex:
- AddEntryPoint(spv::ExecutionModel::Vertex, main, "main", interfaces);
- break;
- case ShaderType::TesselationControl:
- AddCapability(spv::Capability::Tessellation);
- AddEntryPoint(spv::ExecutionModel::TessellationControl, main, "main", interfaces);
- AddExecutionMode(main, spv::ExecutionMode::OutputVertices,
- header.common2.threads_per_input_primitive);
- break;
- case ShaderType::TesselationEval: {
- const auto& info = registry.GetGraphicsInfo();
- AddCapability(spv::Capability::Tessellation);
- AddEntryPoint(spv::ExecutionModel::TessellationEvaluation, main, "main", interfaces);
- AddExecutionMode(main, GetExecutionMode(info.tessellation_primitive));
- AddExecutionMode(main, GetExecutionMode(info.tessellation_spacing));
- AddExecutionMode(main, info.tessellation_clockwise
- ? spv::ExecutionMode::VertexOrderCw
- : spv::ExecutionMode::VertexOrderCcw);
- break;
- }
- case ShaderType::Geometry: {
- const auto& info = registry.GetGraphicsInfo();
- AddCapability(spv::Capability::Geometry);
- AddEntryPoint(spv::ExecutionModel::Geometry, main, "main", interfaces);
- AddExecutionMode(main, GetExecutionMode(info.primitive_topology));
- AddExecutionMode(main, GetExecutionMode(header.common3.output_topology));
- AddExecutionMode(main, spv::ExecutionMode::OutputVertices,
- header.common4.max_output_vertices);
- // TODO(Rodrigo): Where can we get this info from?
- AddExecutionMode(main, spv::ExecutionMode::Invocations, 1U);
- break;
- }
- case ShaderType::Fragment:
- AddEntryPoint(spv::ExecutionModel::Fragment, main, "main", interfaces);
- AddExecutionMode(main, spv::ExecutionMode::OriginUpperLeft);
- if (header.ps.omap.depth) {
- AddExecutionMode(main, spv::ExecutionMode::DepthReplacing);
- }
- if (specialization.early_fragment_tests) {
- AddExecutionMode(main, spv::ExecutionMode::EarlyFragmentTests);
- }
- break;
- case ShaderType::Compute:
- const auto workgroup_size = specialization.workgroup_size;
- AddExecutionMode(main, spv::ExecutionMode::LocalSize, workgroup_size[0],
- workgroup_size[1], workgroup_size[2]);
- AddEntryPoint(spv::ExecutionModel::GLCompute, main, "main", interfaces);
- break;
- }
- }
-
-private:
- Id Decompile() {
- DeclareCommon();
- DeclareVertex();
- DeclareTessControl();
- DeclareTessEval();
- DeclareGeometry();
- DeclareFragment();
- DeclareCompute();
- DeclareRegisters();
- DeclareCustomVariables();
- DeclarePredicates();
- DeclareLocalMemory();
- DeclareSharedMemory();
- DeclareInternalFlags();
- DeclareInputAttributes();
- DeclareOutputAttributes();
-
- u32 binding = specialization.base_binding;
- binding = DeclareConstantBuffers(binding);
- binding = DeclareGlobalBuffers(binding);
- binding = DeclareUniformTexels(binding);
- binding = DeclareSamplers(binding);
- binding = DeclareStorageTexels(binding);
- binding = DeclareImages(binding);
-
- const Id main = OpFunction(t_void, {}, TypeFunction(t_void));
- AddLabel();
-
- if (ir.IsDecompiled()) {
- DeclareFlowVariables();
- DecompileAST();
- } else {
- AllocateLabels();
- DecompileBranchMode();
- }
-
- OpReturn();
- OpFunctionEnd();
-
- return main;
- }
-
- void DefinePrologue() {
- if (stage == ShaderType::Vertex) {
- // Clear Position to avoid reading trash on the Z conversion.
- const auto position_index = out_indices.position.value();
- const Id position = AccessElement(t_out_float4, out_vertex, position_index);
- OpStore(position, v_varying_default);
-
- if (specialization.point_size) {
- const u32 point_size_index = out_indices.point_size.value();
- const Id out_point_size = AccessElement(t_out_float, out_vertex, point_size_index);
- OpStore(out_point_size, Constant(t_float, *specialization.point_size));
- }
- }
- }
-
- void DecompileAST();
-
- void DecompileBranchMode() {
- const u32 first_address = ir.GetBasicBlocks().begin()->first;
- const Id loop_label = OpLabel("loop");
- const Id merge_label = OpLabel("merge");
- const Id dummy_label = OpLabel();
- const Id jump_label = OpLabel();
- continue_label = OpLabel("continue");
-
- std::vector<Sirit::Literal> literals;
- std::vector<Id> branch_labels;
- for (const auto& [literal, label] : labels) {
- literals.push_back(literal);
- branch_labels.push_back(label);
- }
-
- jmp_to = OpVariable(TypePointer(spv::StorageClass::Function, t_uint),
- spv::StorageClass::Function, Constant(t_uint, first_address));
- AddLocalVariable(jmp_to);
-
- std::tie(ssy_flow_stack, ssy_flow_stack_top) = CreateFlowStack();
- std::tie(pbk_flow_stack, pbk_flow_stack_top) = CreateFlowStack();
-
- Name(jmp_to, "jmp_to");
- Name(ssy_flow_stack, "ssy_flow_stack");
- Name(ssy_flow_stack_top, "ssy_flow_stack_top");
- Name(pbk_flow_stack, "pbk_flow_stack");
- Name(pbk_flow_stack_top, "pbk_flow_stack_top");
-
- DefinePrologue();
-
- OpBranch(loop_label);
- AddLabel(loop_label);
- OpLoopMerge(merge_label, continue_label, spv::LoopControlMask::MaskNone);
- OpBranch(dummy_label);
-
- AddLabel(dummy_label);
- const Id default_branch = OpLabel();
- const Id jmp_to_load = OpLoad(t_uint, jmp_to);
- OpSelectionMerge(jump_label, spv::SelectionControlMask::MaskNone);
- OpSwitch(jmp_to_load, default_branch, literals, branch_labels);
-
- AddLabel(default_branch);
- OpReturn();
-
- for (const auto& [address, bb] : ir.GetBasicBlocks()) {
- AddLabel(labels.at(address));
-
- VisitBasicBlock(bb);
-
- const auto next_it = labels.lower_bound(address + 1);
- const Id next_label = next_it != labels.end() ? next_it->second : default_branch;
- OpBranch(next_label);
- }
-
- AddLabel(jump_label);
- OpBranch(continue_label);
- AddLabel(continue_label);
- OpBranch(loop_label);
- AddLabel(merge_label);
- }
-
-private:
- friend class ASTDecompiler;
- friend class ExprDecompiler;
-
- static constexpr auto INTERNAL_FLAGS_COUNT = static_cast<std::size_t>(InternalFlag::Amount);
-
- void AllocateLabels() {
- for (const auto& pair : ir.GetBasicBlocks()) {
- const u32 address = pair.first;
- labels.emplace(address, OpLabel(fmt::format("label_0x{:x}", address)));
- }
- }
-
- void DeclareCommon() {
- thread_id =
- DeclareInputBuiltIn(spv::BuiltIn::SubgroupLocalInvocationId, t_in_uint, "thread_id");
- thread_masks[0] =
- DeclareInputBuiltIn(spv::BuiltIn::SubgroupEqMask, t_in_uint4, "thread_eq_mask");
- thread_masks[1] =
- DeclareInputBuiltIn(spv::BuiltIn::SubgroupGeMask, t_in_uint4, "thread_ge_mask");
- thread_masks[2] =
- DeclareInputBuiltIn(spv::BuiltIn::SubgroupGtMask, t_in_uint4, "thread_gt_mask");
- thread_masks[3] =
- DeclareInputBuiltIn(spv::BuiltIn::SubgroupLeMask, t_in_uint4, "thread_le_mask");
- thread_masks[4] =
- DeclareInputBuiltIn(spv::BuiltIn::SubgroupLtMask, t_in_uint4, "thread_lt_mask");
- }
-
- void DeclareVertex() {
- if (stage != ShaderType::Vertex) {
- return;
- }
- Id out_vertex_struct;
- std::tie(out_vertex_struct, out_indices) = DeclareVertexStruct();
- const Id vertex_ptr = TypePointer(spv::StorageClass::Output, out_vertex_struct);
- out_vertex = OpVariable(vertex_ptr, spv::StorageClass::Output);
- interfaces.push_back(AddGlobalVariable(Name(out_vertex, "out_vertex")));
-
- // Declare input attributes
- vertex_index = DeclareInputBuiltIn(spv::BuiltIn::VertexIndex, t_in_int, "vertex_index");
- instance_index =
- DeclareInputBuiltIn(spv::BuiltIn::InstanceIndex, t_in_int, "instance_index");
- base_vertex = DeclareInputBuiltIn(spv::BuiltIn::BaseVertex, t_in_int, "base_vertex");
- base_instance = DeclareInputBuiltIn(spv::BuiltIn::BaseInstance, t_in_int, "base_instance");
- }
-
- void DeclareTessControl() {
- if (stage != ShaderType::TesselationControl) {
- return;
- }
- DeclareInputVertexArray(NumInputPatches);
- DeclareOutputVertexArray(header.common2.threads_per_input_primitive);
-
- tess_level_outer = DeclareBuiltIn(
- spv::BuiltIn::TessLevelOuter, spv::StorageClass::Output,
- TypePointer(spv::StorageClass::Output, TypeArray(t_float, Constant(t_uint, 4U))),
- "tess_level_outer");
- Decorate(tess_level_outer, spv::Decoration::Patch);
-
- tess_level_inner = DeclareBuiltIn(
- spv::BuiltIn::TessLevelInner, spv::StorageClass::Output,
- TypePointer(spv::StorageClass::Output, TypeArray(t_float, Constant(t_uint, 2U))),
- "tess_level_inner");
- Decorate(tess_level_inner, spv::Decoration::Patch);
-
- invocation_id = DeclareInputBuiltIn(spv::BuiltIn::InvocationId, t_in_int, "invocation_id");
- }
-
- void DeclareTessEval() {
- if (stage != ShaderType::TesselationEval) {
- return;
- }
- DeclareInputVertexArray(NumInputPatches);
- DeclareOutputVertex();
-
- tess_coord = DeclareInputBuiltIn(spv::BuiltIn::TessCoord, t_in_float3, "tess_coord");
- }
-
- void DeclareGeometry() {
- if (stage != ShaderType::Geometry) {
- return;
- }
- const auto& info = registry.GetGraphicsInfo();
- const u32 num_input = GetNumPrimitiveTopologyVertices(info.primitive_topology);
- DeclareInputVertexArray(num_input);
- DeclareOutputVertex();
- }
-
- void DeclareFragment() {
- if (stage != ShaderType::Fragment) {
- return;
- }
-
- for (u32 rt = 0; rt < static_cast<u32>(std::size(frag_colors)); ++rt) {
- if (!IsRenderTargetEnabled(rt)) {
- continue;
- }
- const Id id = AddGlobalVariable(OpVariable(t_out_float4, spv::StorageClass::Output));
- Name(id, fmt::format("frag_color{}", rt));
- Decorate(id, spv::Decoration::Location, rt);
-
- frag_colors[rt] = id;
- interfaces.push_back(id);
- }
-
- if (header.ps.omap.depth) {
- frag_depth = AddGlobalVariable(OpVariable(t_out_float, spv::StorageClass::Output));
- Name(frag_depth, "frag_depth");
- Decorate(frag_depth, spv::Decoration::BuiltIn,
- static_cast<u32>(spv::BuiltIn::FragDepth));
-
- interfaces.push_back(frag_depth);
- }
-
- frag_coord = DeclareInputBuiltIn(spv::BuiltIn::FragCoord, t_in_float4, "frag_coord");
- front_facing = DeclareInputBuiltIn(spv::BuiltIn::FrontFacing, t_in_bool, "front_facing");
- point_coord = DeclareInputBuiltIn(spv::BuiltIn::PointCoord, t_in_float2, "point_coord");
- }
-
- void DeclareCompute() {
- if (stage != ShaderType::Compute) {
- return;
- }
-
- workgroup_id = DeclareInputBuiltIn(spv::BuiltIn::WorkgroupId, t_in_uint3, "workgroup_id");
- local_invocation_id =
- DeclareInputBuiltIn(spv::BuiltIn::LocalInvocationId, t_in_uint3, "local_invocation_id");
- }
-
- void DeclareRegisters() {
- for (const u32 gpr : ir.GetRegisters()) {
- const Id id = OpVariable(t_prv_float, spv::StorageClass::Private, v_float_zero);
- Name(id, fmt::format("gpr_{}", gpr));
- registers.emplace(gpr, AddGlobalVariable(id));
- }
- }
-
- void DeclareCustomVariables() {
- const u32 num_custom_variables = ir.GetNumCustomVariables();
- for (u32 i = 0; i < num_custom_variables; ++i) {
- const Id id = OpVariable(t_prv_float, spv::StorageClass::Private, v_float_zero);
- Name(id, fmt::format("custom_var_{}", i));
- custom_variables.emplace(i, AddGlobalVariable(id));
- }
- }
-
- void DeclarePredicates() {
- for (const auto pred : ir.GetPredicates()) {
- const Id id = OpVariable(t_prv_bool, spv::StorageClass::Private, v_false);
- Name(id, fmt::format("pred_{}", static_cast<u32>(pred)));
- predicates.emplace(pred, AddGlobalVariable(id));
- }
- }
-
- void DeclareFlowVariables() {
- for (u32 i = 0; i < ir.GetASTNumVariables(); i++) {
- const Id id = OpVariable(t_prv_bool, spv::StorageClass::Private, v_false);
- Name(id, fmt::format("flow_var_{}", static_cast<u32>(i)));
- flow_variables.emplace(i, AddGlobalVariable(id));
- }
- }
-
- void DeclareLocalMemory() {
- // TODO(Rodrigo): Unstub kernel local memory size and pass it from a register at
- // specialization time.
- const u64 lmem_size = stage == ShaderType::Compute ? 0x400 : header.GetLocalMemorySize();
- if (lmem_size == 0) {
- return;
- }
- const auto element_count = static_cast<u32>(Common::AlignUp(lmem_size, 4) / 4);
- const Id type_array = TypeArray(t_float, Constant(t_uint, element_count));
- const Id type_pointer = TypePointer(spv::StorageClass::Private, type_array);
- Name(type_pointer, "LocalMemory");
-
- local_memory =
- OpVariable(type_pointer, spv::StorageClass::Private, ConstantNull(type_array));
- AddGlobalVariable(Name(local_memory, "local_memory"));
- }
-
- void DeclareSharedMemory() {
- if (stage != ShaderType::Compute) {
- return;
- }
- t_smem_uint = TypePointer(spv::StorageClass::Workgroup, t_uint);
-
- u32 smem_size = specialization.shared_memory_size * 4;
- if (smem_size == 0) {
- // Avoid declaring an empty array.
- return;
- }
- const u32 limit = device.GetMaxComputeSharedMemorySize();
- if (smem_size > limit) {
- LOG_ERROR(Render_Vulkan, "Shared memory size {} is clamped to host's limit {}",
- smem_size, limit);
- smem_size = limit;
- }
-
- const Id type_array = TypeArray(t_uint, Constant(t_uint, smem_size / 4));
- const Id type_pointer = TypePointer(spv::StorageClass::Workgroup, type_array);
- Name(type_pointer, "SharedMemory");
-
- shared_memory = OpVariable(type_pointer, spv::StorageClass::Workgroup);
- AddGlobalVariable(Name(shared_memory, "shared_memory"));
- }
-
- void DeclareInternalFlags() {
- static constexpr std::array names{"zero", "sign", "carry", "overflow"};
-
- for (std::size_t flag = 0; flag < INTERNAL_FLAGS_COUNT; ++flag) {
- const Id id = OpVariable(t_prv_bool, spv::StorageClass::Private, v_false);
- internal_flags[flag] = AddGlobalVariable(Name(id, names[flag]));
- }
- }
-
- void DeclareInputVertexArray(u32 length) {
- constexpr auto storage = spv::StorageClass::Input;
- std::tie(in_indices, in_vertex) = DeclareVertexArray(storage, "in_indices", length);
- }
-
- void DeclareOutputVertexArray(u32 length) {
- constexpr auto storage = spv::StorageClass::Output;
- std::tie(out_indices, out_vertex) = DeclareVertexArray(storage, "out_indices", length);
- }
-
- std::tuple<VertexIndices, Id> DeclareVertexArray(spv::StorageClass storage_class,
- std::string name, u32 length) {
- const auto [struct_id, indices] = DeclareVertexStruct();
- const Id vertex_array = TypeArray(struct_id, Constant(t_uint, length));
- const Id vertex_ptr = TypePointer(storage_class, vertex_array);
- const Id vertex = OpVariable(vertex_ptr, storage_class);
- AddGlobalVariable(Name(vertex, std::move(name)));
- interfaces.push_back(vertex);
- return {indices, vertex};
- }
-
- void DeclareOutputVertex() {
- Id out_vertex_struct;
- std::tie(out_vertex_struct, out_indices) = DeclareVertexStruct();
- const Id out_vertex_ptr = TypePointer(spv::StorageClass::Output, out_vertex_struct);
- out_vertex = OpVariable(out_vertex_ptr, spv::StorageClass::Output);
- interfaces.push_back(AddGlobalVariable(Name(out_vertex, "out_vertex")));
- }
-
- void DeclareInputAttributes() {
- for (const auto index : ir.GetInputAttributes()) {
- if (!IsGenericAttribute(index)) {
- continue;
- }
- const u32 location = GetGenericAttributeLocation(index);
- if (!IsAttributeEnabled(location)) {
- continue;
- }
- const auto type_descriptor = GetAttributeType(location);
- Id type;
- if (IsInputAttributeArray()) {
- type = GetTypeVectorDefinitionLut(type_descriptor.type).at(3);
- type = TypeArray(type, Constant(t_uint, GetNumInputVertices()));
- type = TypePointer(spv::StorageClass::Input, type);
- } else {
- type = type_descriptor.vector;
- }
- const Id id = OpVariable(type, spv::StorageClass::Input);
- AddGlobalVariable(Name(id, fmt::format("in_attr{}", location)));
- input_attributes.emplace(index, id);
- interfaces.push_back(id);
-
- Decorate(id, spv::Decoration::Location, location);
-
- if (stage != ShaderType::Fragment) {
- continue;
- }
- switch (header.ps.GetPixelImap(location)) {
- case PixelImap::Constant:
- Decorate(id, spv::Decoration::Flat);
- break;
- case PixelImap::Perspective:
- // Default
- break;
- case PixelImap::ScreenLinear:
- Decorate(id, spv::Decoration::NoPerspective);
- break;
- default:
- UNREACHABLE_MSG("Unused attribute being fetched");
- }
- }
- }
-
- void DeclareOutputAttributes() {
- if (stage == ShaderType::Compute || stage == ShaderType::Fragment) {
- return;
- }
-
- UNIMPLEMENTED_IF(registry.GetGraphicsInfo().tfb_enabled && stage != ShaderType::Vertex);
- for (const auto index : ir.GetOutputAttributes()) {
- if (!IsGenericAttribute(index)) {
- continue;
- }
- DeclareOutputAttribute(index);
- }
- }
-
- void DeclareOutputAttribute(Attribute::Index index) {
- static constexpr std::string_view swizzle = "xyzw";
-
- const u32 location = GetGenericAttributeLocation(index);
- u8 element = 0;
- while (element < 4) {
- const std::size_t remainder = 4 - element;
-
- std::size_t num_components = remainder;
- const std::optional tfb = GetTransformFeedbackInfo(index, element);
- if (tfb) {
- num_components = tfb->components;
- }
-
- Id type = GetTypeVectorDefinitionLut(Type::Float).at(num_components - 1);
- Id varying_default = v_varying_default;
- if (IsOutputAttributeArray()) {
- const u32 num = GetNumOutputVertices();
- type = TypeArray(type, Constant(t_uint, num));
- if (device.GetDriverID() != VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS_KHR) {
- // Intel's proprietary driver fails to setup defaults for arrayed output
- // attributes.
- varying_default = ConstantComposite(type, std::vector(num, varying_default));
- }
- }
- type = TypePointer(spv::StorageClass::Output, type);
-
- std::string name = fmt::format("out_attr{}", location);
- if (num_components < 4 || element > 0) {
- name = fmt::format("{}_{}", name, swizzle.substr(element, num_components));
- }
-
- const Id id = OpVariable(type, spv::StorageClass::Output, varying_default);
- Name(AddGlobalVariable(id), name);
-
- GenericVaryingDescription description;
- description.id = id;
- description.first_element = element;
- description.is_scalar = num_components == 1;
- for (u32 i = 0; i < num_components; ++i) {
- const u8 offset = static_cast<u8>(static_cast<u32>(index) * 4 + element + i);
- output_attributes.emplace(offset, description);
- }
- interfaces.push_back(id);
-
- Decorate(id, spv::Decoration::Location, location);
- if (element > 0) {
- Decorate(id, spv::Decoration::Component, static_cast<u32>(element));
- }
- if (tfb && device.IsExtTransformFeedbackSupported()) {
- Decorate(id, spv::Decoration::XfbBuffer, static_cast<u32>(tfb->buffer));
- Decorate(id, spv::Decoration::XfbStride, static_cast<u32>(tfb->stride));
- Decorate(id, spv::Decoration::Offset, static_cast<u32>(tfb->offset));
- }
-
- element = static_cast<u8>(static_cast<std::size_t>(element) + num_components);
- }
- }
-
- std::optional<VaryingTFB> GetTransformFeedbackInfo(Attribute::Index index, u8 element = 0) {
- const u8 location = static_cast<u8>(static_cast<u32>(index) * 4 + element);
- const auto it = transform_feedback.find(location);
- if (it == transform_feedback.end()) {
- return {};
- }
- return it->second;
- }
-
- u32 DeclareConstantBuffers(u32 binding) {
- for (const auto& [index, size] : ir.GetConstantBuffers()) {
- const Id type = device.IsKhrUniformBufferStandardLayoutSupported() ? t_cbuf_scalar_ubo
- : t_cbuf_std140_ubo;
- const Id id = OpVariable(type, spv::StorageClass::Uniform);
- AddGlobalVariable(Name(id, fmt::format("cbuf_{}", index)));
-
- Decorate(id, spv::Decoration::Binding, binding++);
- Decorate(id, spv::Decoration::DescriptorSet, DESCRIPTOR_SET);
- constant_buffers.emplace(index, id);
- }
- return binding;
- }
-
- u32 DeclareGlobalBuffers(u32 binding) {
- for (const auto& [base, usage] : ir.GetGlobalMemory()) {
- const Id id = OpVariable(t_gmem_ssbo, spv::StorageClass::StorageBuffer);
- AddGlobalVariable(
- Name(id, fmt::format("gmem_{}_{}", base.cbuf_index, base.cbuf_offset)));
-
- Decorate(id, spv::Decoration::Binding, binding++);
- Decorate(id, spv::Decoration::DescriptorSet, DESCRIPTOR_SET);
- global_buffers.emplace(base, id);
- }
- return binding;
- }
-
- u32 DeclareUniformTexels(u32 binding) {
- for (const auto& sampler : ir.GetSamplers()) {
- if (!sampler.is_buffer) {
- continue;
- }
- ASSERT(!sampler.is_array);
- ASSERT(!sampler.is_shadow);
-
- constexpr auto dim = spv::Dim::Buffer;
- constexpr int depth = 0;
- constexpr int arrayed = 0;
- constexpr bool ms = false;
- constexpr int sampled = 1;
- constexpr auto format = spv::ImageFormat::Unknown;
- const Id image_type = TypeImage(t_float, dim, depth, arrayed, ms, sampled, format);
- const Id pointer_type = TypePointer(spv::StorageClass::UniformConstant, image_type);
- const Id id = OpVariable(pointer_type, spv::StorageClass::UniformConstant);
- AddGlobalVariable(Name(id, fmt::format("sampler_{}", sampler.index)));
- Decorate(id, spv::Decoration::Binding, binding++);
- Decorate(id, spv::Decoration::DescriptorSet, DESCRIPTOR_SET);
-
- uniform_texels.emplace(sampler.index, TexelBuffer{image_type, id});
- }
- return binding;
- }
-
- u32 DeclareSamplers(u32 binding) {
- for (const auto& sampler : ir.GetSamplers()) {
- if (sampler.is_buffer) {
- continue;
- }
- const auto dim = GetSamplerDim(sampler);
- const int depth = sampler.is_shadow ? 1 : 0;
- const int arrayed = sampler.is_array ? 1 : 0;
- constexpr bool ms = false;
- constexpr int sampled = 1;
- constexpr auto format = spv::ImageFormat::Unknown;
- const Id image_type = TypeImage(t_float, dim, depth, arrayed, ms, sampled, format);
- const Id sampler_type = TypeSampledImage(image_type);
- const Id sampler_pointer_type =
- TypePointer(spv::StorageClass::UniformConstant, sampler_type);
- const Id type = sampler.is_indexed
- ? TypeArray(sampler_type, Constant(t_uint, sampler.size))
- : sampler_type;
- const Id pointer_type = TypePointer(spv::StorageClass::UniformConstant, type);
- const Id id = OpVariable(pointer_type, spv::StorageClass::UniformConstant);
- AddGlobalVariable(Name(id, fmt::format("sampler_{}", sampler.index)));
- Decorate(id, spv::Decoration::Binding, binding++);
- Decorate(id, spv::Decoration::DescriptorSet, DESCRIPTOR_SET);
-
- sampled_images.emplace(
- sampler.index, SampledImage{image_type, sampler_type, sampler_pointer_type, id});
- }
- return binding;
- }
-
- u32 DeclareStorageTexels(u32 binding) {
- for (const auto& image : ir.GetImages()) {
- if (image.type != Tegra::Shader::ImageType::TextureBuffer) {
- continue;
- }
- DeclareImage(image, binding);
- }
- return binding;
- }
-
- u32 DeclareImages(u32 binding) {
- for (const auto& image : ir.GetImages()) {
- if (image.type == Tegra::Shader::ImageType::TextureBuffer) {
- continue;
- }
- DeclareImage(image, binding);
- }
- return binding;
- }
-
- void DeclareImage(const ImageEntry& image, u32& binding) {
- const auto [dim, arrayed] = GetImageDim(image);
- constexpr int depth = 0;
- constexpr bool ms = false;
- constexpr int sampled = 2; // This won't be accessed with a sampler
- const auto format = image.is_atomic ? spv::ImageFormat::R32ui : spv::ImageFormat::Unknown;
- const Id image_type = TypeImage(t_uint, dim, depth, arrayed, ms, sampled, format, {});
- const Id pointer_type = TypePointer(spv::StorageClass::UniformConstant, image_type);
- const Id id = OpVariable(pointer_type, spv::StorageClass::UniformConstant);
- AddGlobalVariable(Name(id, fmt::format("image_{}", image.index)));
-
- Decorate(id, spv::Decoration::Binding, binding++);
- Decorate(id, spv::Decoration::DescriptorSet, DESCRIPTOR_SET);
- if (image.is_read && !image.is_written) {
- Decorate(id, spv::Decoration::NonWritable);
- } else if (image.is_written && !image.is_read) {
- Decorate(id, spv::Decoration::NonReadable);
- }
-
- images.emplace(image.index, StorageImage{image_type, id});
- }
-
- bool IsRenderTargetEnabled(u32 rt) const {
- for (u32 component = 0; component < 4; ++component) {
- if (header.ps.IsColorComponentOutputEnabled(rt, component)) {
- return true;
- }
- }
- return false;
- }
-
- bool IsInputAttributeArray() const {
- return stage == ShaderType::TesselationControl || stage == ShaderType::TesselationEval ||
- stage == ShaderType::Geometry;
- }
-
- bool IsOutputAttributeArray() const {
- return stage == ShaderType::TesselationControl;
- }
-
- bool IsAttributeEnabled(u32 location) const {
- return stage != ShaderType::Vertex || specialization.enabled_attributes[location];
- }
-
- u32 GetNumInputVertices() const {
- switch (stage) {
- case ShaderType::Geometry:
- return GetNumPrimitiveTopologyVertices(registry.GetGraphicsInfo().primitive_topology);
- case ShaderType::TesselationControl:
- case ShaderType::TesselationEval:
- return NumInputPatches;
- default:
- UNREACHABLE();
- return 1;
- }
- }
-
- u32 GetNumOutputVertices() const {
- switch (stage) {
- case ShaderType::TesselationControl:
- return header.common2.threads_per_input_primitive;
- default:
- UNREACHABLE();
- return 1;
- }
- }
-
- std::tuple<Id, VertexIndices> DeclareVertexStruct() {
- struct BuiltIn {
- Id type;
- spv::BuiltIn builtin;
- const char* name;
- };
- std::vector<BuiltIn> members;
- members.reserve(4);
-
- const auto AddBuiltIn = [&](Id type, spv::BuiltIn builtin, const char* name) {
- const auto index = static_cast<u32>(members.size());
- members.push_back(BuiltIn{type, builtin, name});
- return index;
- };
-
- VertexIndices indices;
- indices.position = AddBuiltIn(t_float4, spv::BuiltIn::Position, "position");
-
- if (ir.UsesLayer()) {
- if (stage != ShaderType::Vertex || device.IsExtShaderViewportIndexLayerSupported()) {
- indices.layer = AddBuiltIn(t_int, spv::BuiltIn::Layer, "layer");
- } else {
- LOG_ERROR(
- Render_Vulkan,
- "Shader requires Layer but it's not supported on this stage with this device.");
- }
- }
-
- if (ir.UsesViewportIndex()) {
- if (stage != ShaderType::Vertex || device.IsExtShaderViewportIndexLayerSupported()) {
- indices.viewport = AddBuiltIn(t_int, spv::BuiltIn::ViewportIndex, "viewport_index");
- } else {
- LOG_ERROR(Render_Vulkan, "Shader requires ViewportIndex but it's not supported on "
- "this stage with this device.");
- }
- }
-
- if (ir.UsesPointSize() || specialization.point_size) {
- indices.point_size = AddBuiltIn(t_float, spv::BuiltIn::PointSize, "point_size");
- }
-
- const auto& ir_output_attributes = ir.GetOutputAttributes();
- const bool declare_clip_distances = std::any_of(
- ir_output_attributes.begin(), ir_output_attributes.end(), [](const auto& index) {
- return index == Attribute::Index::ClipDistances0123 ||
- index == Attribute::Index::ClipDistances4567;
- });
- if (declare_clip_distances) {
- indices.clip_distances = AddBuiltIn(TypeArray(t_float, Constant(t_uint, 8)),
- spv::BuiltIn::ClipDistance, "clip_distances");
- }
-
- std::vector<Id> member_types;
- member_types.reserve(members.size());
- for (std::size_t i = 0; i < members.size(); ++i) {
- member_types.push_back(members[i].type);
- }
- const Id per_vertex_struct = Name(TypeStruct(member_types), "PerVertex");
- Decorate(per_vertex_struct, spv::Decoration::Block);
-
- for (std::size_t index = 0; index < members.size(); ++index) {
- const auto& member = members[index];
- MemberName(per_vertex_struct, static_cast<u32>(index), member.name);
- MemberDecorate(per_vertex_struct, static_cast<u32>(index), spv::Decoration::BuiltIn,
- static_cast<u32>(member.builtin));
- }
-
- return {per_vertex_struct, indices};
- }
-
- void VisitBasicBlock(const NodeBlock& bb) {
- for (const auto& node : bb) {
- Visit(node);
- }
- }
-
- Expression Visit(const Node& node) {
- if (const auto operation = std::get_if<OperationNode>(&*node)) {
- if (const auto amend_index = operation->GetAmendIndex()) {
- [[maybe_unused]] const Type type = Visit(ir.GetAmendNode(*amend_index)).type;
- ASSERT(type == Type::Void);
- }
- const auto operation_index = static_cast<std::size_t>(operation->GetCode());
- const auto decompiler = operation_decompilers[operation_index];
- if (decompiler == nullptr) {
- UNREACHABLE_MSG("Operation decompiler {} not defined", operation_index);
- }
- return (this->*decompiler)(*operation);
- }
-
- if (const auto gpr = std::get_if<GprNode>(&*node)) {
- const u32 index = gpr->GetIndex();
- if (index == Register::ZeroIndex) {
- return {v_float_zero, Type::Float};
- }
- return {OpLoad(t_float, registers.at(index)), Type::Float};
- }
-
- if (const auto cv = std::get_if<CustomVarNode>(&*node)) {
- const u32 index = cv->GetIndex();
- return {OpLoad(t_float, custom_variables.at(index)), Type::Float};
- }
-
- if (const auto immediate = std::get_if<ImmediateNode>(&*node)) {
- return {Constant(t_uint, immediate->GetValue()), Type::Uint};
- }
-
- if (const auto predicate = std::get_if<PredicateNode>(&*node)) {
- const auto value = [&]() -> Id {
- switch (const auto index = predicate->GetIndex(); index) {
- case Tegra::Shader::Pred::UnusedIndex:
- return v_true;
- case Tegra::Shader::Pred::NeverExecute:
- return v_false;
- default:
- return OpLoad(t_bool, predicates.at(index));
- }
- }();
- if (predicate->IsNegated()) {
- return {OpLogicalNot(t_bool, value), Type::Bool};
- }
- return {value, Type::Bool};
- }
-
- if (const auto abuf = std::get_if<AbufNode>(&*node)) {
- const auto attribute = abuf->GetIndex();
- const u32 element = abuf->GetElement();
- const auto& buffer = abuf->GetBuffer();
-
- const auto ArrayPass = [&](Id pointer_type, Id composite, std::vector<u32> indices) {
- std::vector<Id> members;
- members.reserve(std::size(indices) + 1);
-
- if (buffer && IsInputAttributeArray()) {
- members.push_back(AsUint(Visit(buffer)));
- }
- for (const u32 index : indices) {
- members.push_back(Constant(t_uint, index));
- }
- return OpAccessChain(pointer_type, composite, members);
- };
-
- switch (attribute) {
- case Attribute::Index::Position: {
- if (stage == ShaderType::Fragment) {
- return {OpLoad(t_float, AccessElement(t_in_float, frag_coord, element)),
- Type::Float};
- }
- const std::vector elements = {in_indices.position.value(), element};
- return {OpLoad(t_float, ArrayPass(t_in_float, in_vertex, elements)), Type::Float};
- }
- case Attribute::Index::PointCoord: {
- switch (element) {
- case 0:
- case 1:
- return {OpCompositeExtract(t_float, OpLoad(t_float2, point_coord), element),
- Type::Float};
- }
- UNIMPLEMENTED_MSG("Unimplemented point coord element={}", element);
- return {v_float_zero, Type::Float};
- }
- case Attribute::Index::TessCoordInstanceIDVertexID:
- // TODO(Subv): Find out what the values are for the first two elements when inside a
- // vertex shader, and what's the value of the fourth element when inside a Tess Eval
- // shader.
- switch (element) {
- case 0:
- case 1:
- return {OpLoad(t_float, AccessElement(t_in_float, tess_coord, element)),
- Type::Float};
- case 2:
- return {
- OpISub(t_int, OpLoad(t_int, instance_index), OpLoad(t_int, base_instance)),
- Type::Int};
- case 3:
- return {OpISub(t_int, OpLoad(t_int, vertex_index), OpLoad(t_int, base_vertex)),
- Type::Int};
- }
- UNIMPLEMENTED_MSG("Unmanaged TessCoordInstanceIDVertexID element={}", element);
- return {Constant(t_uint, 0U), Type::Uint};
- case Attribute::Index::FrontFacing:
- // TODO(Subv): Find out what the values are for the other elements.
- ASSERT(stage == ShaderType::Fragment);
- if (element == 3) {
- const Id is_front_facing = OpLoad(t_bool, front_facing);
- const Id true_value = Constant(t_int, static_cast<s32>(-1));
- const Id false_value = Constant(t_int, 0);
- return {OpSelect(t_int, is_front_facing, true_value, false_value), Type::Int};
- }
- UNIMPLEMENTED_MSG("Unmanaged FrontFacing element={}", element);
- return {v_float_zero, Type::Float};
- default:
- if (!IsGenericAttribute(attribute)) {
- break;
- }
- const u32 location = GetGenericAttributeLocation(attribute);
- if (!IsAttributeEnabled(location)) {
- // Disabled attributes (also known as constant attributes) always return zero.
- return {v_float_zero, Type::Float};
- }
- const auto type_descriptor = GetAttributeType(location);
- const Type type = type_descriptor.type;
- const Id attribute_id = input_attributes.at(attribute);
- const std::vector elements = {element};
- const Id pointer = ArrayPass(type_descriptor.scalar, attribute_id, elements);
- return {OpLoad(GetTypeDefinition(type), pointer), type};
- }
- UNIMPLEMENTED_MSG("Unhandled input attribute: {}", attribute);
- return {v_float_zero, Type::Float};
- }
-
- if (const auto cbuf = std::get_if<CbufNode>(&*node)) {
- const Node& offset = cbuf->GetOffset();
- const Id buffer_id = constant_buffers.at(cbuf->GetIndex());
-
- Id pointer{};
- if (device.IsKhrUniformBufferStandardLayoutSupported()) {
- const Id buffer_offset =
- OpShiftRightLogical(t_uint, AsUint(Visit(offset)), Constant(t_uint, 2U));
- pointer =
- OpAccessChain(t_cbuf_float, buffer_id, Constant(t_uint, 0U), buffer_offset);
- } else {
- Id buffer_index{};
- Id buffer_element{};
- if (const auto immediate = std::get_if<ImmediateNode>(&*offset)) {
- // Direct access
- const u32 offset_imm = immediate->GetValue();
- ASSERT(offset_imm % 4 == 0);
- buffer_index = Constant(t_uint, offset_imm / 16);
- buffer_element = Constant(t_uint, (offset_imm / 4) % 4);
- } else if (std::holds_alternative<OperationNode>(*offset)) {
- // Indirect access
- const Id offset_id = AsUint(Visit(offset));
- const Id unsafe_offset = OpUDiv(t_uint, offset_id, Constant(t_uint, 4));
- const Id final_offset =
- OpUMod(t_uint, unsafe_offset, Constant(t_uint, MaxConstBufferElements - 1));
- buffer_index = OpUDiv(t_uint, final_offset, Constant(t_uint, 4));
- buffer_element = OpUMod(t_uint, final_offset, Constant(t_uint, 4));
- } else {
- UNREACHABLE_MSG("Unmanaged offset node type");
- }
- pointer = OpAccessChain(t_cbuf_float, buffer_id, v_uint_zero, buffer_index,
- buffer_element);
- }
- return {OpLoad(t_float, pointer), Type::Float};
- }
-
- if (const auto gmem = std::get_if<GmemNode>(&*node)) {
- return {OpLoad(t_uint, GetGlobalMemoryPointer(*gmem)), Type::Uint};
- }
-
- if (const auto lmem = std::get_if<LmemNode>(&*node)) {
- Id address = AsUint(Visit(lmem->GetAddress()));
- address = OpShiftRightLogical(t_uint, address, Constant(t_uint, 2U));
- const Id pointer = OpAccessChain(t_prv_float, local_memory, address);
- return {OpLoad(t_float, pointer), Type::Float};
- }
-
- if (const auto smem = std::get_if<SmemNode>(&*node)) {
- return {OpLoad(t_uint, GetSharedMemoryPointer(*smem)), Type::Uint};
- }
-
- if (const auto internal_flag = std::get_if<InternalFlagNode>(&*node)) {
- const Id flag = internal_flags.at(static_cast<std::size_t>(internal_flag->GetFlag()));
- return {OpLoad(t_bool, flag), Type::Bool};
- }
-
- if (const auto conditional = std::get_if<ConditionalNode>(&*node)) {
- if (const auto amend_index = conditional->GetAmendIndex()) {
- [[maybe_unused]] const Type type = Visit(ir.GetAmendNode(*amend_index)).type;
- ASSERT(type == Type::Void);
- }
- // It's invalid to call conditional on nested nodes, use an operation instead
- const Id true_label = OpLabel();
- const Id skip_label = OpLabel();
- const Id condition = AsBool(Visit(conditional->GetCondition()));
- OpSelectionMerge(skip_label, spv::SelectionControlMask::MaskNone);
- OpBranchConditional(condition, true_label, skip_label);
- AddLabel(true_label);
-
- conditional_branch_set = true;
- inside_branch = false;
- VisitBasicBlock(conditional->GetCode());
- conditional_branch_set = false;
- if (!inside_branch) {
- OpBranch(skip_label);
- } else {
- inside_branch = false;
- }
- AddLabel(skip_label);
- return {};
- }
-
- if (const auto comment = std::get_if<CommentNode>(&*node)) {
- if (device.HasDebuggingToolAttached()) {
- // We should insert comments with OpString instead of using named variables
- Name(OpUndef(t_int), comment->GetText());
- }
- return {};
- }
-
- UNREACHABLE();
- return {};
- }
-
- template <Id (Module::*func)(Id, Id), Type result_type, Type type_a = result_type>
- Expression Unary(Operation operation) {
- const Id type_def = GetTypeDefinition(result_type);
- const Id op_a = As(Visit(operation[0]), type_a);
-
- const Id value = (this->*func)(type_def, op_a);
- if (IsPrecise(operation)) {
- Decorate(value, spv::Decoration::NoContraction);
- }
- return {value, result_type};
- }
-
- template <Id (Module::*func)(Id, Id, Id), Type result_type, Type type_a = result_type,
- Type type_b = type_a>
- Expression Binary(Operation operation) {
- const Id type_def = GetTypeDefinition(result_type);
- const Id op_a = As(Visit(operation[0]), type_a);
- const Id op_b = As(Visit(operation[1]), type_b);
-
- const Id value = (this->*func)(type_def, op_a, op_b);
- if (IsPrecise(operation)) {
- Decorate(value, spv::Decoration::NoContraction);
- }
- return {value, result_type};
- }
-
- template <Id (Module::*func)(Id, Id, Id, Id), Type result_type, Type type_a = result_type,
- Type type_b = type_a, Type type_c = type_b>
- Expression Ternary(Operation operation) {
- const Id type_def = GetTypeDefinition(result_type);
- const Id op_a = As(Visit(operation[0]), type_a);
- const Id op_b = As(Visit(operation[1]), type_b);
- const Id op_c = As(Visit(operation[2]), type_c);
-
- const Id value = (this->*func)(type_def, op_a, op_b, op_c);
- if (IsPrecise(operation)) {
- Decorate(value, spv::Decoration::NoContraction);
- }
- return {value, result_type};
- }
-
- template <Id (Module::*func)(Id, Id, Id, Id, Id), Type result_type, Type type_a = result_type,
- Type type_b = type_a, Type type_c = type_b, Type type_d = type_c>
- Expression Quaternary(Operation operation) {
- const Id type_def = GetTypeDefinition(result_type);
- const Id op_a = As(Visit(operation[0]), type_a);
- const Id op_b = As(Visit(operation[1]), type_b);
- const Id op_c = As(Visit(operation[2]), type_c);
- const Id op_d = As(Visit(operation[3]), type_d);
-
- const Id value = (this->*func)(type_def, op_a, op_b, op_c, op_d);
- if (IsPrecise(operation)) {
- Decorate(value, spv::Decoration::NoContraction);
- }
- return {value, result_type};
- }
-
- Expression Assign(Operation operation) {
- const Node& dest = operation[0];
- const Node& src = operation[1];
-
- Expression target{};
- if (const auto gpr = std::get_if<GprNode>(&*dest)) {
- if (gpr->GetIndex() == Register::ZeroIndex) {
- // Writing to Register::ZeroIndex is a no op but we still have to visit its source
- // because it might have side effects.
- Visit(src);
- return {};
- }
- target = {registers.at(gpr->GetIndex()), Type::Float};
-
- } else if (const auto abuf = std::get_if<AbufNode>(&*dest)) {
- const auto& buffer = abuf->GetBuffer();
- const auto ArrayPass = [&](Id pointer_type, Id composite, std::vector<u32> indices) {
- std::vector<Id> members;
- members.reserve(std::size(indices) + 1);
-
- if (buffer && IsOutputAttributeArray()) {
- members.push_back(AsUint(Visit(buffer)));
- }
- for (const u32 index : indices) {
- members.push_back(Constant(t_uint, index));
- }
- return OpAccessChain(pointer_type, composite, members);
- };
-
- target = [&]() -> Expression {
- const u32 element = abuf->GetElement();
- switch (const auto attribute = abuf->GetIndex(); attribute) {
- case Attribute::Index::Position: {
- const u32 index = out_indices.position.value();
- return {ArrayPass(t_out_float, out_vertex, {index, element}), Type::Float};
- }
- case Attribute::Index::LayerViewportPointSize:
- switch (element) {
- case 1: {
- if (!out_indices.layer) {
- return {};
- }
- const u32 index = out_indices.layer.value();
- return {AccessElement(t_out_int, out_vertex, index), Type::Int};
- }
- case 2: {
- if (!out_indices.viewport) {
- return {};
- }
- const u32 index = out_indices.viewport.value();
- return {AccessElement(t_out_int, out_vertex, index), Type::Int};
- }
- case 3: {
- const auto index = out_indices.point_size.value();
- return {AccessElement(t_out_float, out_vertex, index), Type::Float};
- }
- default:
- UNIMPLEMENTED_MSG("LayerViewportPoint element={}", abuf->GetElement());
- return {};
- }
- case Attribute::Index::ClipDistances0123: {
- const u32 index = out_indices.clip_distances.value();
- return {AccessElement(t_out_float, out_vertex, index, element), Type::Float};
- }
- case Attribute::Index::ClipDistances4567: {
- const u32 index = out_indices.clip_distances.value();
- return {AccessElement(t_out_float, out_vertex, index, element + 4),
- Type::Float};
- }
- default:
- if (IsGenericAttribute(attribute)) {
- const u8 offset = static_cast<u8>(static_cast<u8>(attribute) * 4 + element);
- const GenericVaryingDescription description = output_attributes.at(offset);
- const Id composite = description.id;
- std::vector<u32> indices;
- if (!description.is_scalar) {
- indices.push_back(element - description.first_element);
- }
- return {ArrayPass(t_out_float, composite, indices), Type::Float};
- }
- UNIMPLEMENTED_MSG("Unhandled output attribute: {}",
- static_cast<u32>(attribute));
- return {};
- }
- }();
-
- } else if (const auto patch = std::get_if<PatchNode>(&*dest)) {
- target = [&]() -> Expression {
- const u32 offset = patch->GetOffset();
- switch (offset) {
- case 0:
- case 1:
- case 2:
- case 3:
- return {AccessElement(t_out_float, tess_level_outer, offset % 4), Type::Float};
- case 4:
- case 5:
- return {AccessElement(t_out_float, tess_level_inner, offset % 4), Type::Float};
- }
- UNIMPLEMENTED_MSG("Unhandled patch output offset: {}", offset);
- return {};
- }();
-
- } else if (const auto lmem = std::get_if<LmemNode>(&*dest)) {
- Id address = AsUint(Visit(lmem->GetAddress()));
- address = OpUDiv(t_uint, address, Constant(t_uint, 4));
- target = {OpAccessChain(t_prv_float, local_memory, address), Type::Float};
-
- } else if (const auto smem = std::get_if<SmemNode>(&*dest)) {
- target = {GetSharedMemoryPointer(*smem), Type::Uint};
-
- } else if (const auto gmem = std::get_if<GmemNode>(&*dest)) {
- target = {GetGlobalMemoryPointer(*gmem), Type::Uint};
-
- } else if (const auto cv = std::get_if<CustomVarNode>(&*dest)) {
- target = {custom_variables.at(cv->GetIndex()), Type::Float};
-
- } else {
- UNIMPLEMENTED();
- }
-
- if (!target.id) {
- // On failure we return a nullptr target.id, skip these stores.
- return {};
- }
-
- OpStore(target.id, As(Visit(src), target.type));
- return {};
- }
-
- template <u32 offset>
- Expression FCastHalf(Operation operation) {
- const Id value = AsHalfFloat(Visit(operation[0]));
- return {GetFloatFromHalfScalar(OpCompositeExtract(t_scalar_half, value, offset)),
- Type::Float};
- }
-
- Expression FSwizzleAdd(Operation operation) {
- const Id minus = Constant(t_float, -1.0f);
- const Id plus = v_float_one;
- const Id zero = v_float_zero;
- const Id lut_a = ConstantComposite(t_float4, minus, plus, minus, zero);
- const Id lut_b = ConstantComposite(t_float4, minus, minus, plus, minus);
-
- Id mask = OpLoad(t_uint, thread_id);
- mask = OpBitwiseAnd(t_uint, mask, Constant(t_uint, 3));
- mask = OpShiftLeftLogical(t_uint, mask, Constant(t_uint, 1));
- mask = OpShiftRightLogical(t_uint, AsUint(Visit(operation[2])), mask);
- mask = OpBitwiseAnd(t_uint, mask, Constant(t_uint, 3));
-
- const Id modifier_a = OpVectorExtractDynamic(t_float, lut_a, mask);
- const Id modifier_b = OpVectorExtractDynamic(t_float, lut_b, mask);
-
- const Id op_a = OpFMul(t_float, AsFloat(Visit(operation[0])), modifier_a);
- const Id op_b = OpFMul(t_float, AsFloat(Visit(operation[1])), modifier_b);
- return {OpFAdd(t_float, op_a, op_b), Type::Float};
- }
-
- Expression HNegate(Operation operation) {
- const bool is_f16 = device.IsFloat16Supported();
- const Id minus_one = Constant(t_scalar_half, is_f16 ? 0xbc00 : 0xbf800000);
- const Id one = Constant(t_scalar_half, is_f16 ? 0x3c00 : 0x3f800000);
- const auto GetNegate = [&](std::size_t index) {
- return OpSelect(t_scalar_half, AsBool(Visit(operation[index])), minus_one, one);
- };
- const Id negation = OpCompositeConstruct(t_half, GetNegate(1), GetNegate(2));
- return {OpFMul(t_half, AsHalfFloat(Visit(operation[0])), negation), Type::HalfFloat};
- }
-
- Expression HClamp(Operation operation) {
- const auto Pack = [&](std::size_t index) {
- const Id scalar = GetHalfScalarFromFloat(AsFloat(Visit(operation[index])));
- return OpCompositeConstruct(t_half, scalar, scalar);
- };
- const Id value = AsHalfFloat(Visit(operation[0]));
- const Id min = Pack(1);
- const Id max = Pack(2);
-
- const Id clamped = OpFClamp(t_half, value, min, max);
- if (IsPrecise(operation)) {
- Decorate(clamped, spv::Decoration::NoContraction);
- }
- return {clamped, Type::HalfFloat};
- }
-
- Expression HCastFloat(Operation operation) {
- const Id value = GetHalfScalarFromFloat(AsFloat(Visit(operation[0])));
- return {OpCompositeConstruct(t_half, value, Constant(t_scalar_half, 0)), Type::HalfFloat};
- }
-
- Expression HUnpack(Operation operation) {
- Expression operand = Visit(operation[0]);
- const auto type = std::get<Tegra::Shader::HalfType>(operation.GetMeta());
- if (type == Tegra::Shader::HalfType::H0_H1) {
- return operand;
- }
- const auto value = [&] {
- switch (std::get<Tegra::Shader::HalfType>(operation.GetMeta())) {
- case Tegra::Shader::HalfType::F32:
- return GetHalfScalarFromFloat(AsFloat(operand));
- case Tegra::Shader::HalfType::H0_H0:
- return OpCompositeExtract(t_scalar_half, AsHalfFloat(operand), 0);
- case Tegra::Shader::HalfType::H1_H1:
- return OpCompositeExtract(t_scalar_half, AsHalfFloat(operand), 1);
- default:
- UNREACHABLE();
- return ConstantNull(t_half);
- }
- }();
- return {OpCompositeConstruct(t_half, value, value), Type::HalfFloat};
- }
-
- Expression HMergeF32(Operation operation) {
- const Id value = AsHalfFloat(Visit(operation[0]));
- return {GetFloatFromHalfScalar(OpCompositeExtract(t_scalar_half, value, 0)), Type::Float};
- }
-
- template <u32 offset>
- Expression HMergeHN(Operation operation) {
- const Id target = AsHalfFloat(Visit(operation[0]));
- const Id source = AsHalfFloat(Visit(operation[1]));
- const Id object = OpCompositeExtract(t_scalar_half, source, offset);
- return {OpCompositeInsert(t_half, object, target, offset), Type::HalfFloat};
- }
-
- Expression HPack2(Operation operation) {
- const Id low = GetHalfScalarFromFloat(AsFloat(Visit(operation[0])));
- const Id high = GetHalfScalarFromFloat(AsFloat(Visit(operation[1])));
- return {OpCompositeConstruct(t_half, low, high), Type::HalfFloat};
- }
-
- Expression LogicalAddCarry(Operation operation) {
- const Id op_a = AsUint(Visit(operation[0]));
- const Id op_b = AsUint(Visit(operation[1]));
-
- const Id result = OpIAddCarry(TypeStruct({t_uint, t_uint}), op_a, op_b);
- const Id carry = OpCompositeExtract(t_uint, result, 1);
- return {OpINotEqual(t_bool, carry, v_uint_zero), Type::Bool};
- }
-
- Expression LogicalAssign(Operation operation) {
- const Node& dest = operation[0];
- const Node& src = operation[1];
-
- Id target{};
- if (const auto pred = std::get_if<PredicateNode>(&*dest)) {
- ASSERT_MSG(!pred->IsNegated(), "Negating logical assignment");
-
- const auto index = pred->GetIndex();
- switch (index) {
- case Tegra::Shader::Pred::NeverExecute:
- case Tegra::Shader::Pred::UnusedIndex:
- // Writing to these predicates is a no-op
- return {};
- }
- target = predicates.at(index);
-
- } else if (const auto flag = std::get_if<InternalFlagNode>(&*dest)) {
- target = internal_flags.at(static_cast<u32>(flag->GetFlag()));
- }
-
- OpStore(target, AsBool(Visit(src)));
- return {};
- }
-
- Expression LogicalFOrdered(Operation operation) {
- // Emulate SPIR-V's OpOrdered
- const Id op_a = AsFloat(Visit(operation[0]));
- const Id op_b = AsFloat(Visit(operation[1]));
- const Id is_num_a = OpFOrdEqual(t_bool, op_a, op_a);
- const Id is_num_b = OpFOrdEqual(t_bool, op_b, op_b);
- return {OpLogicalAnd(t_bool, is_num_a, is_num_b), Type::Bool};
- }
-
- Expression LogicalFUnordered(Operation operation) {
- // Emulate SPIR-V's OpUnordered
- const Id op_a = AsFloat(Visit(operation[0]));
- const Id op_b = AsFloat(Visit(operation[1]));
- const Id is_nan_a = OpIsNan(t_bool, op_a);
- const Id is_nan_b = OpIsNan(t_bool, op_b);
- return {OpLogicalOr(t_bool, is_nan_a, is_nan_b), Type::Bool};
- }
-
- Id GetTextureSampler(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- ASSERT(!meta.sampler.is_buffer);
-
- const auto& entry = sampled_images.at(meta.sampler.index);
- Id sampler = entry.variable;
- if (meta.sampler.is_indexed) {
- const Id index = AsInt(Visit(meta.index));
- sampler = OpAccessChain(entry.sampler_pointer_type, sampler, index);
- }
- return OpLoad(entry.sampler_type, sampler);
- }
-
- Id GetTextureImage(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- const u32 index = meta.sampler.index;
- if (meta.sampler.is_buffer) {
- const auto& entry = uniform_texels.at(index);
- return OpLoad(entry.image_type, entry.image);
- } else {
- const auto& entry = sampled_images.at(index);
- return OpImage(entry.image_type, GetTextureSampler(operation));
- }
- }
-
- Id GetImage(Operation operation) {
- const auto& meta = std::get<MetaImage>(operation.GetMeta());
- const auto entry = images.at(meta.image.index);
- return OpLoad(entry.image_type, entry.image);
- }
-
- Id AssembleVector(const std::vector<Id>& coords, Type type) {
- const Id coords_type = GetTypeVectorDefinitionLut(type).at(coords.size() - 1);
- return coords.size() == 1 ? coords[0] : OpCompositeConstruct(coords_type, coords);
- }
-
- Id GetCoordinates(Operation operation, Type type) {
- std::vector<Id> coords;
- for (std::size_t i = 0; i < operation.GetOperandsCount(); ++i) {
- coords.push_back(As(Visit(operation[i]), type));
- }
- if (const auto meta = std::get_if<MetaTexture>(&operation.GetMeta())) {
- // Add array coordinate for textures
- if (meta->sampler.is_array) {
- Id array = AsInt(Visit(meta->array));
- if (type == Type::Float) {
- array = OpConvertSToF(t_float, array);
- }
- coords.push_back(array);
- }
- }
- return AssembleVector(coords, type);
- }
-
- Id GetOffsetCoordinates(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- std::vector<Id> coords;
- coords.reserve(meta.aoffi.size());
- for (const auto& coord : meta.aoffi) {
- coords.push_back(AsInt(Visit(coord)));
- }
- return AssembleVector(coords, Type::Int);
- }
-
- std::pair<Id, Id> GetDerivatives(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- const auto& derivatives = meta.derivates;
- ASSERT(derivatives.size() % 2 == 0);
-
- const std::size_t components = derivatives.size() / 2;
- std::vector<Id> dx, dy;
- dx.reserve(components);
- dy.reserve(components);
- for (std::size_t index = 0; index < components; ++index) {
- dx.push_back(AsFloat(Visit(derivatives.at(index * 2 + 0))));
- dy.push_back(AsFloat(Visit(derivatives.at(index * 2 + 1))));
- }
- return {AssembleVector(dx, Type::Float), AssembleVector(dy, Type::Float)};
- }
-
- Expression GetTextureElement(Operation operation, Id sample_value, Type type) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- const auto type_def = GetTypeDefinition(type);
- return {OpCompositeExtract(type_def, sample_value, meta.element), type};
- }
-
- Expression Texture(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
-
- const bool can_implicit = stage == ShaderType::Fragment;
- const Id sampler = GetTextureSampler(operation);
- const Id coords = GetCoordinates(operation, Type::Float);
-
- std::vector<Id> operands;
- spv::ImageOperandsMask mask{};
- if (meta.bias) {
- mask = mask | spv::ImageOperandsMask::Bias;
- operands.push_back(AsFloat(Visit(meta.bias)));
- }
-
- if (!can_implicit) {
- mask = mask | spv::ImageOperandsMask::Lod;
- operands.push_back(v_float_zero);
- }
-
- if (!meta.aoffi.empty()) {
- mask = mask | spv::ImageOperandsMask::Offset;
- operands.push_back(GetOffsetCoordinates(operation));
- }
-
- if (meta.depth_compare) {
- // Depth sampling
- UNIMPLEMENTED_IF(meta.bias);
- const Id dref = AsFloat(Visit(meta.depth_compare));
- if (can_implicit) {
- return {
- OpImageSampleDrefImplicitLod(t_float, sampler, coords, dref, mask, operands),
- Type::Float};
- } else {
- return {
- OpImageSampleDrefExplicitLod(t_float, sampler, coords, dref, mask, operands),
- Type::Float};
- }
- }
-
- Id texture;
- if (can_implicit) {
- texture = OpImageSampleImplicitLod(t_float4, sampler, coords, mask, operands);
- } else {
- texture = OpImageSampleExplicitLod(t_float4, sampler, coords, mask, operands);
- }
- return GetTextureElement(operation, texture, Type::Float);
- }
-
- Expression TextureLod(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
-
- const Id sampler = GetTextureSampler(operation);
- const Id coords = GetCoordinates(operation, Type::Float);
- const Id lod = AsFloat(Visit(meta.lod));
-
- spv::ImageOperandsMask mask = spv::ImageOperandsMask::Lod;
- std::vector<Id> operands{lod};
-
- if (!meta.aoffi.empty()) {
- mask = mask | spv::ImageOperandsMask::Offset;
- operands.push_back(GetOffsetCoordinates(operation));
- }
-
- if (meta.sampler.is_shadow) {
- const Id dref = AsFloat(Visit(meta.depth_compare));
- return {OpImageSampleDrefExplicitLod(t_float, sampler, coords, dref, mask, operands),
- Type::Float};
- }
- const Id texture = OpImageSampleExplicitLod(t_float4, sampler, coords, mask, operands);
- return GetTextureElement(operation, texture, Type::Float);
- }
-
- Expression TextureGather(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
-
- const Id coords = GetCoordinates(operation, Type::Float);
-
- spv::ImageOperandsMask mask = spv::ImageOperandsMask::MaskNone;
- std::vector<Id> operands;
- Id texture{};
-
- if (!meta.aoffi.empty()) {
- mask = mask | spv::ImageOperandsMask::Offset;
- operands.push_back(GetOffsetCoordinates(operation));
- }
-
- if (meta.sampler.is_shadow) {
- texture = OpImageDrefGather(t_float4, GetTextureSampler(operation), coords,
- AsFloat(Visit(meta.depth_compare)), mask, operands);
- } else {
- u32 component_value = 0;
- if (meta.component) {
- const auto component = std::get_if<ImmediateNode>(&*meta.component);
- ASSERT_MSG(component, "Component is not an immediate value");
- component_value = component->GetValue();
- }
- texture = OpImageGather(t_float4, GetTextureSampler(operation), coords,
- Constant(t_uint, component_value), mask, operands);
- }
- return GetTextureElement(operation, texture, Type::Float);
- }
-
- Expression TextureQueryDimensions(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- UNIMPLEMENTED_IF(!meta.aoffi.empty());
- UNIMPLEMENTED_IF(meta.depth_compare);
-
- const auto image_id = GetTextureImage(operation);
- if (meta.element == 3) {
- return {OpImageQueryLevels(t_int, image_id), Type::Int};
- }
-
- const Id lod = AsUint(Visit(operation[0]));
- const std::size_t coords_count = [&meta] {
- switch (const auto type = meta.sampler.type) {
- case Tegra::Shader::TextureType::Texture1D:
- return 1;
- case Tegra::Shader::TextureType::Texture2D:
- case Tegra::Shader::TextureType::TextureCube:
- return 2;
- case Tegra::Shader::TextureType::Texture3D:
- return 3;
- default:
- UNREACHABLE_MSG("Invalid texture type={}", type);
- return 2;
- }
- }();
-
- if (meta.element >= coords_count) {
- return {v_float_zero, Type::Float};
- }
-
- const std::array<Id, 3> types = {t_int, t_int2, t_int3};
- const Id sizes = OpImageQuerySizeLod(types.at(coords_count - 1), image_id, lod);
- const Id size = OpCompositeExtract(t_int, sizes, meta.element);
- return {size, Type::Int};
- }
-
- Expression TextureQueryLod(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- UNIMPLEMENTED_IF(!meta.aoffi.empty());
- UNIMPLEMENTED_IF(meta.depth_compare);
-
- if (meta.element >= 2) {
- UNREACHABLE_MSG("Invalid element");
- return {v_float_zero, Type::Float};
- }
- const auto sampler_id = GetTextureSampler(operation);
-
- const Id multiplier = Constant(t_float, 256.0f);
- const Id multipliers = ConstantComposite(t_float2, multiplier, multiplier);
-
- const Id coords = GetCoordinates(operation, Type::Float);
- Id size = OpImageQueryLod(t_float2, sampler_id, coords);
- size = OpFMul(t_float2, size, multipliers);
- size = OpConvertFToS(t_int2, size);
- return GetTextureElement(operation, size, Type::Int);
- }
-
- Expression TexelFetch(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- UNIMPLEMENTED_IF(meta.depth_compare);
-
- const Id image = GetTextureImage(operation);
- const Id coords = GetCoordinates(operation, Type::Int);
-
- spv::ImageOperandsMask mask = spv::ImageOperandsMask::MaskNone;
- std::vector<Id> operands;
- Id fetch;
-
- if (meta.lod && !meta.sampler.is_buffer) {
- mask = mask | spv::ImageOperandsMask::Lod;
- operands.push_back(AsInt(Visit(meta.lod)));
- }
-
- if (!meta.aoffi.empty()) {
- mask = mask | spv::ImageOperandsMask::Offset;
- operands.push_back(GetOffsetCoordinates(operation));
- }
-
- fetch = OpImageFetch(t_float4, image, coords, mask, operands);
- return GetTextureElement(operation, fetch, Type::Float);
- }
-
- Expression TextureGradient(Operation operation) {
- const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- UNIMPLEMENTED_IF(!meta.aoffi.empty());
-
- const Id sampler = GetTextureSampler(operation);
- const Id coords = GetCoordinates(operation, Type::Float);
- const auto [dx, dy] = GetDerivatives(operation);
- const std::vector grad = {dx, dy};
-
- static constexpr auto mask = spv::ImageOperandsMask::Grad;
- const Id texture = OpImageSampleExplicitLod(t_float4, sampler, coords, mask, grad);
- return GetTextureElement(operation, texture, Type::Float);
- }
-
- Expression ImageLoad(Operation operation) {
- if (!device.IsFormatlessImageLoadSupported()) {
- return {v_float_zero, Type::Float};
- }
-
- const auto& meta{std::get<MetaImage>(operation.GetMeta())};
-
- const Id coords = GetCoordinates(operation, Type::Int);
- const Id texel = OpImageRead(t_uint4, GetImage(operation), coords);
-
- return {OpCompositeExtract(t_uint, texel, meta.element), Type::Uint};
- }
-
- Expression ImageStore(Operation operation) {
- const auto meta{std::get<MetaImage>(operation.GetMeta())};
- std::vector<Id> colors;
- for (const auto& value : meta.values) {
- colors.push_back(AsUint(Visit(value)));
- }
-
- const Id coords = GetCoordinates(operation, Type::Int);
- const Id texel = OpCompositeConstruct(t_uint4, colors);
-
- OpImageWrite(GetImage(operation), coords, texel, {});
- return {};
- }
-
- template <Id (Module::*func)(Id, Id, Id, Id, Id)>
- Expression AtomicImage(Operation operation) {
- const auto& meta{std::get<MetaImage>(operation.GetMeta())};
- ASSERT(meta.values.size() == 1);
-
- const Id coordinate = GetCoordinates(operation, Type::Int);
- const Id image = images.at(meta.image.index).image;
- const Id sample = v_uint_zero;
- const Id pointer = OpImageTexelPointer(t_image_uint, image, coordinate, sample);
-
- const Id scope = Constant(t_uint, static_cast<u32>(spv::Scope::Device));
- const Id semantics = v_uint_zero;
- const Id value = AsUint(Visit(meta.values[0]));
- return {(this->*func)(t_uint, pointer, scope, semantics, value), Type::Uint};
- }
-
- template <Id (Module::*func)(Id, Id, Id, Id, Id)>
- Expression Atomic(Operation operation) {
- Id pointer;
- if (const auto smem = std::get_if<SmemNode>(&*operation[0])) {
- pointer = GetSharedMemoryPointer(*smem);
- } else if (const auto gmem = std::get_if<GmemNode>(&*operation[0])) {
- pointer = GetGlobalMemoryPointer(*gmem);
- } else {
- UNREACHABLE();
- return {v_float_zero, Type::Float};
- }
- const Id scope = Constant(t_uint, static_cast<u32>(spv::Scope::Device));
- const Id semantics = v_uint_zero;
- const Id value = AsUint(Visit(operation[1]));
-
- return {(this->*func)(t_uint, pointer, scope, semantics, value), Type::Uint};
- }
-
- template <Id (Module::*func)(Id, Id, Id, Id, Id)>
- Expression Reduce(Operation operation) {
- Atomic<func>(operation);
- return {};
- }
-
- Expression Branch(Operation operation) {
- const auto& target = std::get<ImmediateNode>(*operation[0]);
- OpStore(jmp_to, Constant(t_uint, target.GetValue()));
- OpBranch(continue_label);
- inside_branch = true;
- if (!conditional_branch_set) {
- AddLabel();
- }
- return {};
- }
-
- Expression BranchIndirect(Operation operation) {
- const Id op_a = AsUint(Visit(operation[0]));
-
- OpStore(jmp_to, op_a);
- OpBranch(continue_label);
- inside_branch = true;
- if (!conditional_branch_set) {
- AddLabel();
- }
- return {};
- }
-
- Expression PushFlowStack(Operation operation) {
- const auto& target = std::get<ImmediateNode>(*operation[0]);
- const auto [flow_stack, flow_stack_top] = GetFlowStack(operation);
- const Id current = OpLoad(t_uint, flow_stack_top);
- const Id next = OpIAdd(t_uint, current, Constant(t_uint, 1));
- const Id access = OpAccessChain(t_func_uint, flow_stack, current);
-
- OpStore(access, Constant(t_uint, target.GetValue()));
- OpStore(flow_stack_top, next);
- return {};
- }
-
- Expression PopFlowStack(Operation operation) {
- const auto [flow_stack, flow_stack_top] = GetFlowStack(operation);
- const Id current = OpLoad(t_uint, flow_stack_top);
- const Id previous = OpISub(t_uint, current, Constant(t_uint, 1));
- const Id access = OpAccessChain(t_func_uint, flow_stack, previous);
- const Id target = OpLoad(t_uint, access);
-
- OpStore(flow_stack_top, previous);
- OpStore(jmp_to, target);
- OpBranch(continue_label);
- inside_branch = true;
- if (!conditional_branch_set) {
- AddLabel();
- }
- return {};
- }
-
- Id MaxwellToSpirvComparison(Maxwell::ComparisonOp compare_op, Id operand_1, Id operand_2) {
- using Compare = Maxwell::ComparisonOp;
- switch (compare_op) {
- case Compare::NeverOld:
- return v_false; // Never let the test pass
- case Compare::LessOld:
- return OpFOrdLessThan(t_bool, operand_1, operand_2);
- case Compare::EqualOld:
- return OpFOrdEqual(t_bool, operand_1, operand_2);
- case Compare::LessEqualOld:
- return OpFOrdLessThanEqual(t_bool, operand_1, operand_2);
- case Compare::GreaterOld:
- return OpFOrdGreaterThan(t_bool, operand_1, operand_2);
- case Compare::NotEqualOld:
- return OpFOrdNotEqual(t_bool, operand_1, operand_2);
- case Compare::GreaterEqualOld:
- return OpFOrdGreaterThanEqual(t_bool, operand_1, operand_2);
- default:
- UNREACHABLE();
- return v_true;
- }
- }
-
- void AlphaTest(Id pointer) {
- if (specialization.alpha_test_func == Maxwell::ComparisonOp::AlwaysOld) {
- return;
- }
- const Id true_label = OpLabel();
- const Id discard_label = OpLabel();
- const Id alpha_reference = Constant(t_float, specialization.alpha_test_ref);
- const Id alpha_value = OpLoad(t_float, pointer);
- const Id condition =
- MaxwellToSpirvComparison(specialization.alpha_test_func, alpha_value, alpha_reference);
-
- OpBranchConditional(condition, true_label, discard_label);
- AddLabel(discard_label);
- OpKill();
- AddLabel(true_label);
- }
-
- void PreExit() {
- if (stage == ShaderType::Vertex && specialization.ndc_minus_one_to_one) {
- const u32 position_index = out_indices.position.value();
- const Id z_pointer = AccessElement(t_out_float, out_vertex, position_index, 2U);
- const Id w_pointer = AccessElement(t_out_float, out_vertex, position_index, 3U);
- Id depth = OpLoad(t_float, z_pointer);
- depth = OpFAdd(t_float, depth, OpLoad(t_float, w_pointer));
- depth = OpFMul(t_float, depth, Constant(t_float, 0.5f));
- OpStore(z_pointer, depth);
- }
- if (stage == ShaderType::Fragment) {
- const auto SafeGetRegister = [this](u32 reg) {
- if (const auto it = registers.find(reg); it != registers.end()) {
- return OpLoad(t_float, it->second);
- }
- return v_float_zero;
- };
-
- UNIMPLEMENTED_IF_MSG(header.ps.omap.sample_mask != 0,
- "Sample mask write is unimplemented");
-
- // Write the color outputs using the data in the shader registers, disabled
- // rendertargets/components are skipped in the register assignment.
- u32 current_reg = 0;
- for (u32 rt = 0; rt < Maxwell::NumRenderTargets; ++rt) {
- // TODO(Subv): Figure out how dual-source blending is configured in the Switch.
- for (u32 component = 0; component < 4; ++component) {
- if (!header.ps.IsColorComponentOutputEnabled(rt, component)) {
- continue;
- }
- const Id pointer = AccessElement(t_out_float, frag_colors[rt], component);
- OpStore(pointer, SafeGetRegister(current_reg));
- if (rt == 0 && component == 3) {
- AlphaTest(pointer);
- }
- ++current_reg;
- }
- }
- if (header.ps.omap.depth) {
- // The depth output is always 2 registers after the last color output, and
- // current_reg already contains one past the last color register.
- OpStore(frag_depth, SafeGetRegister(current_reg + 1));
- }
- }
- }
-
- Expression Exit(Operation operation) {
- PreExit();
- inside_branch = true;
- if (conditional_branch_set) {
- OpReturn();
- } else {
- const Id dummy = OpLabel();
- OpBranch(dummy);
- AddLabel(dummy);
- OpReturn();
- AddLabel();
- }
- return {};
- }
-
- Expression Discard(Operation operation) {
- inside_branch = true;
- if (conditional_branch_set) {
- OpKill();
- } else {
- const Id dummy = OpLabel();
- OpBranch(dummy);
- AddLabel(dummy);
- OpKill();
- AddLabel();
- }
- return {};
- }
-
- Expression EmitVertex(Operation) {
- OpEmitVertex();
- return {};
- }
-
- Expression EndPrimitive(Operation operation) {
- OpEndPrimitive();
- return {};
- }
-
- Expression InvocationId(Operation) {
- return {OpLoad(t_int, invocation_id), Type::Int};
- }
-
- Expression YNegate(Operation) {
- LOG_WARNING(Render_Vulkan, "(STUBBED)");
- return {Constant(t_float, 1.0f), Type::Float};
- }
-
- template <u32 element>
- Expression LocalInvocationId(Operation) {
- const Id id = OpLoad(t_uint3, local_invocation_id);
- return {OpCompositeExtract(t_uint, id, element), Type::Uint};
- }
-
- template <u32 element>
- Expression WorkGroupId(Operation operation) {
- const Id id = OpLoad(t_uint3, workgroup_id);
- return {OpCompositeExtract(t_uint, id, element), Type::Uint};
- }
-
- Expression BallotThread(Operation operation) {
- const Id predicate = AsBool(Visit(operation[0]));
- const Id ballot = OpSubgroupBallotKHR(t_uint4, predicate);
-
- if (!device.IsWarpSizePotentiallyBiggerThanGuest()) {
- // Guest-like devices can just return the first index.
- return {OpCompositeExtract(t_uint, ballot, 0U), Type::Uint};
- }
-
- // The others will have to return what is local to the current thread.
- // For instance a device with a warp size of 64 will return the upper uint when the current
- // thread is 38.
- const Id tid = OpLoad(t_uint, thread_id);
- const Id thread_index = OpShiftRightLogical(t_uint, tid, Constant(t_uint, 5));
- return {OpVectorExtractDynamic(t_uint, ballot, thread_index), Type::Uint};
- }
-
- template <Id (Module::*func)(Id, Id)>
- Expression Vote(Operation operation) {
- // TODO(Rodrigo): Handle devices with different warp sizes
- const Id predicate = AsBool(Visit(operation[0]));
- return {(this->*func)(t_bool, predicate), Type::Bool};
- }
-
- Expression ThreadId(Operation) {
- return {OpLoad(t_uint, thread_id), Type::Uint};
- }
-
- template <std::size_t index>
- Expression ThreadMask(Operation) {
- // TODO(Rodrigo): Handle devices with different warp sizes
- const Id mask = thread_masks[index];
- return {OpLoad(t_uint, AccessElement(t_in_uint, mask, 0)), Type::Uint};
- }
-
- Expression ShuffleIndexed(Operation operation) {
- const Id value = AsFloat(Visit(operation[0]));
- const Id index = AsUint(Visit(operation[1]));
- return {OpSubgroupReadInvocationKHR(t_float, value, index), Type::Float};
- }
-
- Expression Barrier(Operation) {
- if (!ir.IsDecompiled()) {
- LOG_ERROR(Render_Vulkan, "OpBarrier used by shader is not decompiled");
- return {};
- }
-
- const auto scope = spv::Scope::Workgroup;
- const auto memory = spv::Scope::Workgroup;
- const auto semantics =
- spv::MemorySemanticsMask::WorkgroupMemory | spv::MemorySemanticsMask::AcquireRelease;
- OpControlBarrier(Constant(t_uint, static_cast<u32>(scope)),
- Constant(t_uint, static_cast<u32>(memory)),
- Constant(t_uint, static_cast<u32>(semantics)));
- return {};
- }
-
- template <spv::Scope scope>
- Expression MemoryBarrier(Operation) {
- const auto semantics =
- spv::MemorySemanticsMask::AcquireRelease | spv::MemorySemanticsMask::UniformMemory |
- spv::MemorySemanticsMask::WorkgroupMemory |
- spv::MemorySemanticsMask::AtomicCounterMemory | spv::MemorySemanticsMask::ImageMemory;
-
- OpMemoryBarrier(Constant(t_uint, static_cast<u32>(scope)),
- Constant(t_uint, static_cast<u32>(semantics)));
- return {};
- }
-
- Id DeclareBuiltIn(spv::BuiltIn builtin, spv::StorageClass storage, Id type, std::string name) {
- const Id id = OpVariable(type, storage);
- Decorate(id, spv::Decoration::BuiltIn, static_cast<u32>(builtin));
- AddGlobalVariable(Name(id, std::move(name)));
- interfaces.push_back(id);
- return id;
- }
-
- Id DeclareInputBuiltIn(spv::BuiltIn builtin, Id type, std::string name) {
- return DeclareBuiltIn(builtin, spv::StorageClass::Input, type, std::move(name));
- }
-
- template <typename... Args>
- Id AccessElement(Id pointer_type, Id composite, Args... elements_) {
- std::vector<Id> members;
- auto elements = {elements_...};
- for (const auto element : elements) {
- members.push_back(Constant(t_uint, element));
- }
-
- return OpAccessChain(pointer_type, composite, members);
- }
-
- Id As(Expression expr, Type wanted_type) {
- switch (wanted_type) {
- case Type::Bool:
- return AsBool(expr);
- case Type::Bool2:
- return AsBool2(expr);
- case Type::Float:
- return AsFloat(expr);
- case Type::Int:
- return AsInt(expr);
- case Type::Uint:
- return AsUint(expr);
- case Type::HalfFloat:
- return AsHalfFloat(expr);
- default:
- UNREACHABLE();
- return expr.id;
- }
- }
-
- Id AsBool(Expression expr) {
- ASSERT(expr.type == Type::Bool);
- return expr.id;
- }
-
- Id AsBool2(Expression expr) {
- ASSERT(expr.type == Type::Bool2);
- return expr.id;
- }
-
- Id AsFloat(Expression expr) {
- switch (expr.type) {
- case Type::Float:
- return expr.id;
- case Type::Int:
- case Type::Uint:
- return OpBitcast(t_float, expr.id);
- case Type::HalfFloat:
- if (device.IsFloat16Supported()) {
- return OpBitcast(t_float, expr.id);
- }
- return OpBitcast(t_float, OpPackHalf2x16(t_uint, expr.id));
- default:
- UNREACHABLE();
- return expr.id;
- }
- }
-
- Id AsInt(Expression expr) {
- switch (expr.type) {
- case Type::Int:
- return expr.id;
- case Type::Float:
- case Type::Uint:
- return OpBitcast(t_int, expr.id);
- case Type::HalfFloat:
- if (device.IsFloat16Supported()) {
- return OpBitcast(t_int, expr.id);
- }
- return OpPackHalf2x16(t_int, expr.id);
- default:
- UNREACHABLE();
- return expr.id;
- }
- }
-
- Id AsUint(Expression expr) {
- switch (expr.type) {
- case Type::Uint:
- return expr.id;
- case Type::Float:
- case Type::Int:
- return OpBitcast(t_uint, expr.id);
- case Type::HalfFloat:
- if (device.IsFloat16Supported()) {
- return OpBitcast(t_uint, expr.id);
- }
- return OpPackHalf2x16(t_uint, expr.id);
- default:
- UNREACHABLE();
- return expr.id;
- }
- }
-
- Id AsHalfFloat(Expression expr) {
- switch (expr.type) {
- case Type::HalfFloat:
- return expr.id;
- case Type::Float:
- case Type::Int:
- case Type::Uint:
- if (device.IsFloat16Supported()) {
- return OpBitcast(t_half, expr.id);
- }
- return OpUnpackHalf2x16(t_half, AsUint(expr));
- default:
- UNREACHABLE();
- return expr.id;
- }
- }
-
- Id GetHalfScalarFromFloat(Id value) {
- if (device.IsFloat16Supported()) {
- return OpFConvert(t_scalar_half, value);
- }
- return value;
- }
-
- Id GetFloatFromHalfScalar(Id value) {
- if (device.IsFloat16Supported()) {
- return OpFConvert(t_float, value);
- }
- return value;
- }
-
- AttributeType GetAttributeType(u32 location) const {
- if (stage != ShaderType::Vertex) {
- return {Type::Float, t_in_float, t_in_float4};
- }
- switch (specialization.attribute_types.at(location)) {
- case Maxwell::VertexAttribute::Type::SignedNorm:
- case Maxwell::VertexAttribute::Type::UnsignedNorm:
- case Maxwell::VertexAttribute::Type::UnsignedScaled:
- case Maxwell::VertexAttribute::Type::SignedScaled:
- case Maxwell::VertexAttribute::Type::Float:
- return {Type::Float, t_in_float, t_in_float4};
- case Maxwell::VertexAttribute::Type::SignedInt:
- return {Type::Int, t_in_int, t_in_int4};
- case Maxwell::VertexAttribute::Type::UnsignedInt:
- return {Type::Uint, t_in_uint, t_in_uint4};
- default:
- UNREACHABLE();
- return {Type::Float, t_in_float, t_in_float4};
- }
- }
-
- Id GetTypeDefinition(Type type) const {
- switch (type) {
- case Type::Bool:
- return t_bool;
- case Type::Bool2:
- return t_bool2;
- case Type::Float:
- return t_float;
- case Type::Int:
- return t_int;
- case Type::Uint:
- return t_uint;
- case Type::HalfFloat:
- return t_half;
- default:
- UNREACHABLE();
- return {};
- }
- }
-
- std::array<Id, 4> GetTypeVectorDefinitionLut(Type type) const {
- switch (type) {
- case Type::Float:
- return {t_float, t_float2, t_float3, t_float4};
- case Type::Int:
- return {t_int, t_int2, t_int3, t_int4};
- case Type::Uint:
- return {t_uint, t_uint2, t_uint3, t_uint4};
- default:
- UNIMPLEMENTED();
- return {};
- }
- }
-
- std::tuple<Id, Id> CreateFlowStack() {
- // TODO(Rodrigo): Figure out the actual depth of the flow stack, for now it seems unlikely
- // that shaders will use 20 nested SSYs and PBKs.
- constexpr u32 FLOW_STACK_SIZE = 20;
- constexpr auto storage_class = spv::StorageClass::Function;
-
- const Id flow_stack_type = TypeArray(t_uint, Constant(t_uint, FLOW_STACK_SIZE));
- const Id stack = OpVariable(TypePointer(storage_class, flow_stack_type), storage_class,
- ConstantNull(flow_stack_type));
- const Id top = OpVariable(t_func_uint, storage_class, Constant(t_uint, 0));
- AddLocalVariable(stack);
- AddLocalVariable(top);
- return std::tie(stack, top);
- }
-
- std::pair<Id, Id> GetFlowStack(Operation operation) {
- const auto stack_class = std::get<MetaStackClass>(operation.GetMeta());
- switch (stack_class) {
- case MetaStackClass::Ssy:
- return {ssy_flow_stack, ssy_flow_stack_top};
- case MetaStackClass::Pbk:
- return {pbk_flow_stack, pbk_flow_stack_top};
- }
- UNREACHABLE();
- return {};
- }
-
- Id GetGlobalMemoryPointer(const GmemNode& gmem) {
- const Id real = AsUint(Visit(gmem.GetRealAddress()));
- const Id base = AsUint(Visit(gmem.GetBaseAddress()));
- const Id diff = OpISub(t_uint, real, base);
- const Id offset = OpShiftRightLogical(t_uint, diff, Constant(t_uint, 2));
- const Id buffer = global_buffers.at(gmem.GetDescriptor());
- return OpAccessChain(t_gmem_uint, buffer, Constant(t_uint, 0), offset);
- }
-
- Id GetSharedMemoryPointer(const SmemNode& smem) {
- ASSERT(stage == ShaderType::Compute);
- Id address = AsUint(Visit(smem.GetAddress()));
- address = OpShiftRightLogical(t_uint, address, Constant(t_uint, 2U));
- return OpAccessChain(t_smem_uint, shared_memory, address);
- }
-
- static constexpr std::array operation_decompilers = {
- &SPIRVDecompiler::Assign,
-
- &SPIRVDecompiler::Ternary<&Module::OpSelect, Type::Float, Type::Bool, Type::Float,
- Type::Float>,
-
- &SPIRVDecompiler::Binary<&Module::OpFAdd, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFMul, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFDiv, Type::Float>,
- &SPIRVDecompiler::Ternary<&Module::OpFma, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpFNegate, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpFAbs, Type::Float>,
- &SPIRVDecompiler::Ternary<&Module::OpFClamp, Type::Float>,
- &SPIRVDecompiler::FCastHalf<0>,
- &SPIRVDecompiler::FCastHalf<1>,
- &SPIRVDecompiler::Binary<&Module::OpFMin, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFMax, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpCos, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpSin, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpExp2, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpLog2, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpInverseSqrt, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpSqrt, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpRoundEven, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpFloor, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpCeil, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpTrunc, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpConvertSToF, Type::Float, Type::Int>,
- &SPIRVDecompiler::Unary<&Module::OpConvertUToF, Type::Float, Type::Uint>,
- &SPIRVDecompiler::FSwizzleAdd,
-
- &SPIRVDecompiler::Binary<&Module::OpIAdd, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpIMul, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpSDiv, Type::Int>,
- &SPIRVDecompiler::Unary<&Module::OpSNegate, Type::Int>,
- &SPIRVDecompiler::Unary<&Module::OpSAbs, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpSMin, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpSMax, Type::Int>,
-
- &SPIRVDecompiler::Unary<&Module::OpConvertFToS, Type::Int, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpBitcast, Type::Int, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpShiftLeftLogical, Type::Int, Type::Int, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpShiftRightLogical, Type::Int, Type::Int, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpShiftRightArithmetic, Type::Int, Type::Int, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpBitwiseAnd, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpBitwiseOr, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpBitwiseXor, Type::Int>,
- &SPIRVDecompiler::Unary<&Module::OpNot, Type::Int>,
- &SPIRVDecompiler::Quaternary<&Module::OpBitFieldInsert, Type::Int>,
- &SPIRVDecompiler::Ternary<&Module::OpBitFieldSExtract, Type::Int>,
- &SPIRVDecompiler::Unary<&Module::OpBitCount, Type::Int>,
- &SPIRVDecompiler::Unary<&Module::OpFindSMsb, Type::Int>,
-
- &SPIRVDecompiler::Binary<&Module::OpIAdd, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpIMul, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpUDiv, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpUMin, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpUMax, Type::Uint>,
- &SPIRVDecompiler::Unary<&Module::OpConvertFToU, Type::Uint, Type::Float>,
- &SPIRVDecompiler::Unary<&Module::OpBitcast, Type::Uint, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpShiftLeftLogical, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpShiftRightLogical, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpShiftRightLogical, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpBitwiseAnd, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpBitwiseOr, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpBitwiseXor, Type::Uint>,
- &SPIRVDecompiler::Unary<&Module::OpNot, Type::Uint>,
- &SPIRVDecompiler::Quaternary<&Module::OpBitFieldInsert, Type::Uint>,
- &SPIRVDecompiler::Ternary<&Module::OpBitFieldUExtract, Type::Uint>,
- &SPIRVDecompiler::Unary<&Module::OpBitCount, Type::Uint>,
- &SPIRVDecompiler::Unary<&Module::OpFindUMsb, Type::Uint>,
-
- &SPIRVDecompiler::Binary<&Module::OpFAdd, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFMul, Type::HalfFloat>,
- &SPIRVDecompiler::Ternary<&Module::OpFma, Type::HalfFloat>,
- &SPIRVDecompiler::Unary<&Module::OpFAbs, Type::HalfFloat>,
- &SPIRVDecompiler::HNegate,
- &SPIRVDecompiler::HClamp,
- &SPIRVDecompiler::HCastFloat,
- &SPIRVDecompiler::HUnpack,
- &SPIRVDecompiler::HMergeF32,
- &SPIRVDecompiler::HMergeHN<0>,
- &SPIRVDecompiler::HMergeHN<1>,
- &SPIRVDecompiler::HPack2,
-
- &SPIRVDecompiler::LogicalAssign,
- &SPIRVDecompiler::Binary<&Module::OpLogicalAnd, Type::Bool>,
- &SPIRVDecompiler::Binary<&Module::OpLogicalOr, Type::Bool>,
- &SPIRVDecompiler::Binary<&Module::OpLogicalNotEqual, Type::Bool>,
- &SPIRVDecompiler::Unary<&Module::OpLogicalNot, Type::Bool>,
- &SPIRVDecompiler::Binary<&Module::OpVectorExtractDynamic, Type::Bool, Type::Bool2,
- Type::Uint>,
- &SPIRVDecompiler::Unary<&Module::OpAll, Type::Bool, Type::Bool2>,
-
- &SPIRVDecompiler::Binary<&Module::OpFOrdLessThan, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdLessThanEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThan, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdNotEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThanEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::LogicalFOrdered,
- &SPIRVDecompiler::LogicalFUnordered,
- &SPIRVDecompiler::Binary<&Module::OpFUnordLessThan, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFUnordEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFUnordLessThanEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFUnordGreaterThan, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFUnordNotEqual, Type::Bool, Type::Float>,
- &SPIRVDecompiler::Binary<&Module::OpFUnordGreaterThanEqual, Type::Bool, Type::Float>,
-
- &SPIRVDecompiler::Binary<&Module::OpSLessThan, Type::Bool, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpIEqual, Type::Bool, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpSLessThanEqual, Type::Bool, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpSGreaterThan, Type::Bool, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpINotEqual, Type::Bool, Type::Int>,
- &SPIRVDecompiler::Binary<&Module::OpSGreaterThanEqual, Type::Bool, Type::Int>,
-
- &SPIRVDecompiler::Binary<&Module::OpULessThan, Type::Bool, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpIEqual, Type::Bool, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpULessThanEqual, Type::Bool, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpUGreaterThan, Type::Bool, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpINotEqual, Type::Bool, Type::Uint>,
- &SPIRVDecompiler::Binary<&Module::OpUGreaterThanEqual, Type::Bool, Type::Uint>,
-
- &SPIRVDecompiler::LogicalAddCarry,
-
- &SPIRVDecompiler::Binary<&Module::OpFOrdLessThan, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdEqual, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdLessThanEqual, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThan, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdNotEqual, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThanEqual, Type::Bool2, Type::HalfFloat>,
- // TODO(Rodrigo): Should these use the OpFUnord* variants?
- &SPIRVDecompiler::Binary<&Module::OpFOrdLessThan, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdEqual, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdLessThanEqual, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThan, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdNotEqual, Type::Bool2, Type::HalfFloat>,
- &SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThanEqual, Type::Bool2, Type::HalfFloat>,
-
- &SPIRVDecompiler::Texture,
- &SPIRVDecompiler::TextureLod,
- &SPIRVDecompiler::TextureGather,
- &SPIRVDecompiler::TextureQueryDimensions,
- &SPIRVDecompiler::TextureQueryLod,
- &SPIRVDecompiler::TexelFetch,
- &SPIRVDecompiler::TextureGradient,
-
- &SPIRVDecompiler::ImageLoad,
- &SPIRVDecompiler::ImageStore,
- &SPIRVDecompiler::AtomicImage<&Module::OpAtomicIAdd>,
- &SPIRVDecompiler::AtomicImage<&Module::OpAtomicAnd>,
- &SPIRVDecompiler::AtomicImage<&Module::OpAtomicOr>,
- &SPIRVDecompiler::AtomicImage<&Module::OpAtomicXor>,
- &SPIRVDecompiler::AtomicImage<&Module::OpAtomicExchange>,
-
- &SPIRVDecompiler::Atomic<&Module::OpAtomicExchange>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicIAdd>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicUMin>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicUMax>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicAnd>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicOr>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicXor>,
-
- &SPIRVDecompiler::Atomic<&Module::OpAtomicExchange>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicIAdd>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicSMin>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicSMax>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicAnd>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicOr>,
- &SPIRVDecompiler::Atomic<&Module::OpAtomicXor>,
-
- &SPIRVDecompiler::Reduce<&Module::OpAtomicIAdd>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicUMin>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicUMax>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicAnd>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicOr>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicXor>,
-
- &SPIRVDecompiler::Reduce<&Module::OpAtomicIAdd>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicSMin>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicSMax>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicAnd>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicOr>,
- &SPIRVDecompiler::Reduce<&Module::OpAtomicXor>,
-
- &SPIRVDecompiler::Branch,
- &SPIRVDecompiler::BranchIndirect,
- &SPIRVDecompiler::PushFlowStack,
- &SPIRVDecompiler::PopFlowStack,
- &SPIRVDecompiler::Exit,
- &SPIRVDecompiler::Discard,
-
- &SPIRVDecompiler::EmitVertex,
- &SPIRVDecompiler::EndPrimitive,
-
- &SPIRVDecompiler::InvocationId,
- &SPIRVDecompiler::YNegate,
- &SPIRVDecompiler::LocalInvocationId<0>,
- &SPIRVDecompiler::LocalInvocationId<1>,
- &SPIRVDecompiler::LocalInvocationId<2>,
- &SPIRVDecompiler::WorkGroupId<0>,
- &SPIRVDecompiler::WorkGroupId<1>,
- &SPIRVDecompiler::WorkGroupId<2>,
-
- &SPIRVDecompiler::BallotThread,
- &SPIRVDecompiler::Vote<&Module::OpSubgroupAllKHR>,
- &SPIRVDecompiler::Vote<&Module::OpSubgroupAnyKHR>,
- &SPIRVDecompiler::Vote<&Module::OpSubgroupAllEqualKHR>,
-
- &SPIRVDecompiler::ThreadId,
- &SPIRVDecompiler::ThreadMask<0>, // Eq
- &SPIRVDecompiler::ThreadMask<1>, // Ge
- &SPIRVDecompiler::ThreadMask<2>, // Gt
- &SPIRVDecompiler::ThreadMask<3>, // Le
- &SPIRVDecompiler::ThreadMask<4>, // Lt
- &SPIRVDecompiler::ShuffleIndexed,
-
- &SPIRVDecompiler::Barrier,
- &SPIRVDecompiler::MemoryBarrier<spv::Scope::Workgroup>,
- &SPIRVDecompiler::MemoryBarrier<spv::Scope::Device>,
- };
- static_assert(operation_decompilers.size() == static_cast<std::size_t>(OperationCode::Amount));
-
- const Device& device;
- const ShaderIR& ir;
- const ShaderType stage;
- const Tegra::Shader::Header header;
- const Registry& registry;
- const Specialization& specialization;
- std::unordered_map<u8, VaryingTFB> transform_feedback;
-
- const Id t_void = Name(TypeVoid(), "void");
-
- const Id t_bool = Name(TypeBool(), "bool");
- const Id t_bool2 = Name(TypeVector(t_bool, 2), "bool2");
-
- const Id t_int = Name(TypeInt(32, true), "int");
- const Id t_int2 = Name(TypeVector(t_int, 2), "int2");
- const Id t_int3 = Name(TypeVector(t_int, 3), "int3");
- const Id t_int4 = Name(TypeVector(t_int, 4), "int4");
-
- const Id t_uint = Name(TypeInt(32, false), "uint");
- const Id t_uint2 = Name(TypeVector(t_uint, 2), "uint2");
- const Id t_uint3 = Name(TypeVector(t_uint, 3), "uint3");
- const Id t_uint4 = Name(TypeVector(t_uint, 4), "uint4");
-
- const Id t_float = Name(TypeFloat(32), "float");
- const Id t_float2 = Name(TypeVector(t_float, 2), "float2");
- const Id t_float3 = Name(TypeVector(t_float, 3), "float3");
- const Id t_float4 = Name(TypeVector(t_float, 4), "float4");
-
- const Id t_prv_bool = Name(TypePointer(spv::StorageClass::Private, t_bool), "prv_bool");
- const Id t_prv_float = Name(TypePointer(spv::StorageClass::Private, t_float), "prv_float");
-
- const Id t_func_uint = Name(TypePointer(spv::StorageClass::Function, t_uint), "func_uint");
-
- const Id t_in_bool = Name(TypePointer(spv::StorageClass::Input, t_bool), "in_bool");
- const Id t_in_int = Name(TypePointer(spv::StorageClass::Input, t_int), "in_int");
- const Id t_in_int4 = Name(TypePointer(spv::StorageClass::Input, t_int4), "in_int4");
- const Id t_in_uint = Name(TypePointer(spv::StorageClass::Input, t_uint), "in_uint");
- const Id t_in_uint3 = Name(TypePointer(spv::StorageClass::Input, t_uint3), "in_uint3");
- const Id t_in_uint4 = Name(TypePointer(spv::StorageClass::Input, t_uint4), "in_uint4");
- const Id t_in_float = Name(TypePointer(spv::StorageClass::Input, t_float), "in_float");
- const Id t_in_float2 = Name(TypePointer(spv::StorageClass::Input, t_float2), "in_float2");
- const Id t_in_float3 = Name(TypePointer(spv::StorageClass::Input, t_float3), "in_float3");
- const Id t_in_float4 = Name(TypePointer(spv::StorageClass::Input, t_float4), "in_float4");
-
- const Id t_out_int = Name(TypePointer(spv::StorageClass::Output, t_int), "out_int");
-
- const Id t_out_float = Name(TypePointer(spv::StorageClass::Output, t_float), "out_float");
- const Id t_out_float4 = Name(TypePointer(spv::StorageClass::Output, t_float4), "out_float4");
-
- const Id t_cbuf_float = TypePointer(spv::StorageClass::Uniform, t_float);
- const Id t_cbuf_std140 = Decorate(
- Name(TypeArray(t_float4, Constant(t_uint, MaxConstBufferElements)), "CbufStd140Array"),
- spv::Decoration::ArrayStride, 16U);
- const Id t_cbuf_scalar = Decorate(
- Name(TypeArray(t_float, Constant(t_uint, MaxConstBufferFloats)), "CbufScalarArray"),
- spv::Decoration::ArrayStride, 4U);
- const Id t_cbuf_std140_struct = MemberDecorate(
- Decorate(TypeStruct(t_cbuf_std140), spv::Decoration::Block), 0, spv::Decoration::Offset, 0);
- const Id t_cbuf_scalar_struct = MemberDecorate(
- Decorate(TypeStruct(t_cbuf_scalar), spv::Decoration::Block), 0, spv::Decoration::Offset, 0);
- const Id t_cbuf_std140_ubo = TypePointer(spv::StorageClass::Uniform, t_cbuf_std140_struct);
- const Id t_cbuf_scalar_ubo = TypePointer(spv::StorageClass::Uniform, t_cbuf_scalar_struct);
-
- Id t_smem_uint{};
-
- const Id t_gmem_uint = TypePointer(spv::StorageClass::StorageBuffer, t_uint);
- const Id t_gmem_array =
- Name(Decorate(TypeRuntimeArray(t_uint), spv::Decoration::ArrayStride, 4U), "GmemArray");
- const Id t_gmem_struct = MemberDecorate(
- Decorate(TypeStruct(t_gmem_array), spv::Decoration::Block), 0, spv::Decoration::Offset, 0);
- const Id t_gmem_ssbo = TypePointer(spv::StorageClass::StorageBuffer, t_gmem_struct);
-
- const Id t_image_uint = TypePointer(spv::StorageClass::Image, t_uint);
-
- const Id v_float_zero = Constant(t_float, 0.0f);
- const Id v_float_one = Constant(t_float, 1.0f);
- const Id v_uint_zero = Constant(t_uint, 0);
-
- // Nvidia uses these defaults for varyings (e.g. position and generic attributes)
- const Id v_varying_default =
- ConstantComposite(t_float4, v_float_zero, v_float_zero, v_float_zero, v_float_one);
-
- const Id v_true = ConstantTrue(t_bool);
- const Id v_false = ConstantFalse(t_bool);
-
- Id t_scalar_half{};
- Id t_half{};
-
- Id out_vertex{};
- Id in_vertex{};
- std::map<u32, Id> registers;
- std::map<u32, Id> custom_variables;
- std::map<Tegra::Shader::Pred, Id> predicates;
- std::map<u32, Id> flow_variables;
- Id local_memory{};
- Id shared_memory{};
- std::array<Id, INTERNAL_FLAGS_COUNT> internal_flags{};
- std::map<Attribute::Index, Id> input_attributes;
- std::unordered_map<u8, GenericVaryingDescription> output_attributes;
- std::map<u32, Id> constant_buffers;
- std::map<GlobalMemoryBase, Id> global_buffers;
- std::map<u32, TexelBuffer> uniform_texels;
- std::map<u32, SampledImage> sampled_images;
- std::map<u32, StorageImage> images;
-
- std::array<Id, Maxwell::NumRenderTargets> frag_colors{};
- Id instance_index{};
- Id vertex_index{};
- Id base_instance{};
- Id base_vertex{};
- Id frag_depth{};
- Id frag_coord{};
- Id front_facing{};
- Id point_coord{};
- Id tess_level_outer{};
- Id tess_level_inner{};
- Id tess_coord{};
- Id invocation_id{};
- Id workgroup_id{};
- Id local_invocation_id{};
- Id thread_id{};
- std::array<Id, 5> thread_masks{}; // eq, ge, gt, le, lt
-
- VertexIndices in_indices;
- VertexIndices out_indices;
-
- std::vector<Id> interfaces;
-
- Id jmp_to{};
- Id ssy_flow_stack_top{};
- Id pbk_flow_stack_top{};
- Id ssy_flow_stack{};
- Id pbk_flow_stack{};
- Id continue_label{};
- std::map<u32, Id> labels;
-
- bool conditional_branch_set{};
- bool inside_branch{};
-};
-
-class ExprDecompiler {
-public:
- explicit ExprDecompiler(SPIRVDecompiler& decomp_) : decomp{decomp_} {}
-
- Id operator()(const ExprAnd& expr) {
- const Id type_def = decomp.GetTypeDefinition(Type::Bool);
- const Id op1 = Visit(expr.operand1);
- const Id op2 = Visit(expr.operand2);
- return decomp.OpLogicalAnd(type_def, op1, op2);
- }
-
- Id operator()(const ExprOr& expr) {
- const Id type_def = decomp.GetTypeDefinition(Type::Bool);
- const Id op1 = Visit(expr.operand1);
- const Id op2 = Visit(expr.operand2);
- return decomp.OpLogicalOr(type_def, op1, op2);
- }
-
- Id operator()(const ExprNot& expr) {
- const Id type_def = decomp.GetTypeDefinition(Type::Bool);
- const Id op1 = Visit(expr.operand1);
- return decomp.OpLogicalNot(type_def, op1);
- }
-
- Id operator()(const ExprPredicate& expr) {
- const auto pred = static_cast<Tegra::Shader::Pred>(expr.predicate);
- return decomp.OpLoad(decomp.t_bool, decomp.predicates.at(pred));
- }
-
- Id operator()(const ExprCondCode& expr) {
- return decomp.AsBool(decomp.Visit(decomp.ir.GetConditionCode(expr.cc)));
- }
-
- Id operator()(const ExprVar& expr) {
- return decomp.OpLoad(decomp.t_bool, decomp.flow_variables.at(expr.var_index));
- }
-
- Id operator()(const ExprBoolean& expr) {
- return expr.value ? decomp.v_true : decomp.v_false;
- }
-
- Id operator()(const ExprGprEqual& expr) {
- const Id target = decomp.Constant(decomp.t_uint, expr.value);
- Id gpr = decomp.OpLoad(decomp.t_float, decomp.registers.at(expr.gpr));
- gpr = decomp.OpBitcast(decomp.t_uint, gpr);
- return decomp.OpIEqual(decomp.t_bool, gpr, target);
- }
-
- Id Visit(const Expr& node) {
- return std::visit(*this, *node);
- }
-
-private:
- SPIRVDecompiler& decomp;
-};
-
-class ASTDecompiler {
-public:
- explicit ASTDecompiler(SPIRVDecompiler& decomp_) : decomp{decomp_} {}
-
- void operator()(const ASTProgram& ast) {
- ASTNode current = ast.nodes.GetFirst();
- while (current) {
- Visit(current);
- current = current->GetNext();
- }
- }
-
- void operator()(const ASTIfThen& ast) {
- ExprDecompiler expr_parser{decomp};
- const Id condition = expr_parser.Visit(ast.condition);
- const Id then_label = decomp.OpLabel();
- const Id endif_label = decomp.OpLabel();
- decomp.OpSelectionMerge(endif_label, spv::SelectionControlMask::MaskNone);
- decomp.OpBranchConditional(condition, then_label, endif_label);
- decomp.AddLabel(then_label);
- ASTNode current = ast.nodes.GetFirst();
- while (current) {
- Visit(current);
- current = current->GetNext();
- }
- decomp.OpBranch(endif_label);
- decomp.AddLabel(endif_label);
- }
-
- void operator()([[maybe_unused]] const ASTIfElse& ast) {
- UNREACHABLE();
- }
-
- void operator()([[maybe_unused]] const ASTBlockEncoded& ast) {
- UNREACHABLE();
- }
-
- void operator()(const ASTBlockDecoded& ast) {
- decomp.VisitBasicBlock(ast.nodes);
- }
-
- void operator()(const ASTVarSet& ast) {
- ExprDecompiler expr_parser{decomp};
- const Id condition = expr_parser.Visit(ast.condition);
- decomp.OpStore(decomp.flow_variables.at(ast.index), condition);
- }
-
- void operator()([[maybe_unused]] const ASTLabel& ast) {
- // Do nothing
- }
-
- void operator()([[maybe_unused]] const ASTGoto& ast) {
- UNREACHABLE();
- }
-
- void operator()(const ASTDoWhile& ast) {
- const Id loop_label = decomp.OpLabel();
- const Id endloop_label = decomp.OpLabel();
- const Id loop_start_block = decomp.OpLabel();
- const Id loop_continue_block = decomp.OpLabel();
- current_loop_exit = endloop_label;
- decomp.OpBranch(loop_label);
- decomp.AddLabel(loop_label);
- decomp.OpLoopMerge(endloop_label, loop_continue_block, spv::LoopControlMask::MaskNone);
- decomp.OpBranch(loop_start_block);
- decomp.AddLabel(loop_start_block);
- ASTNode current = ast.nodes.GetFirst();
- while (current) {
- Visit(current);
- current = current->GetNext();
- }
- decomp.OpBranch(loop_continue_block);
- decomp.AddLabel(loop_continue_block);
- ExprDecompiler expr_parser{decomp};
- const Id condition = expr_parser.Visit(ast.condition);
- decomp.OpBranchConditional(condition, loop_label, endloop_label);
- decomp.AddLabel(endloop_label);
- }
-
- void operator()(const ASTReturn& ast) {
- if (!VideoCommon::Shader::ExprIsTrue(ast.condition)) {
- ExprDecompiler expr_parser{decomp};
- const Id condition = expr_parser.Visit(ast.condition);
- const Id then_label = decomp.OpLabel();
- const Id endif_label = decomp.OpLabel();
- decomp.OpSelectionMerge(endif_label, spv::SelectionControlMask::MaskNone);
- decomp.OpBranchConditional(condition, then_label, endif_label);
- decomp.AddLabel(then_label);
- if (ast.kills) {
- decomp.OpKill();
- } else {
- decomp.PreExit();
- decomp.OpReturn();
- }
- decomp.AddLabel(endif_label);
- } else {
- const Id next_block = decomp.OpLabel();
- decomp.OpBranch(next_block);
- decomp.AddLabel(next_block);
- if (ast.kills) {
- decomp.OpKill();
- } else {
- decomp.PreExit();
- decomp.OpReturn();
- }
- decomp.AddLabel(decomp.OpLabel());
- }
- }
-
- void operator()(const ASTBreak& ast) {
- if (!VideoCommon::Shader::ExprIsTrue(ast.condition)) {
- ExprDecompiler expr_parser{decomp};
- const Id condition = expr_parser.Visit(ast.condition);
- const Id then_label = decomp.OpLabel();
- const Id endif_label = decomp.OpLabel();
- decomp.OpSelectionMerge(endif_label, spv::SelectionControlMask::MaskNone);
- decomp.OpBranchConditional(condition, then_label, endif_label);
- decomp.AddLabel(then_label);
- decomp.OpBranch(current_loop_exit);
- decomp.AddLabel(endif_label);
- } else {
- const Id next_block = decomp.OpLabel();
- decomp.OpBranch(next_block);
- decomp.AddLabel(next_block);
- decomp.OpBranch(current_loop_exit);
- decomp.AddLabel(decomp.OpLabel());
- }
- }
-
- void Visit(const ASTNode& node) {
- std::visit(*this, *node->GetInnerData());
- }
-
-private:
- SPIRVDecompiler& decomp;
- Id current_loop_exit{};
-};
-
-void SPIRVDecompiler::DecompileAST() {
- const u32 num_flow_variables = ir.GetASTNumVariables();
- for (u32 i = 0; i < num_flow_variables; i++) {
- const Id id = OpVariable(t_prv_bool, spv::StorageClass::Private, v_false);
- Name(id, fmt::format("flow_var_{}", i));
- flow_variables.emplace(i, AddGlobalVariable(id));
- }
-
- DefinePrologue();
-
- const ASTNode program = ir.GetASTProgram();
- ASTDecompiler decompiler{*this};
- decompiler.Visit(program);
-
- const Id next_block = OpLabel();
- OpBranch(next_block);
- AddLabel(next_block);
-}
-
-} // Anonymous namespace
-
-ShaderEntries GenerateShaderEntries(const VideoCommon::Shader::ShaderIR& ir) {
- ShaderEntries entries;
- for (const auto& cbuf : ir.GetConstantBuffers()) {
- entries.const_buffers.emplace_back(cbuf.second, cbuf.first);
- }
- for (const auto& [base, usage] : ir.GetGlobalMemory()) {
- entries.global_buffers.emplace_back(GlobalBufferEntry{
- .cbuf_index = base.cbuf_index,
- .cbuf_offset = base.cbuf_offset,
- .is_written = usage.is_written,
- });
- }
- for (const auto& sampler : ir.GetSamplers()) {
- if (sampler.is_buffer) {
- entries.uniform_texels.emplace_back(sampler);
- } else {
- entries.samplers.emplace_back(sampler);
- }
- }
- for (const auto& image : ir.GetImages()) {
- if (image.type == Tegra::Shader::ImageType::TextureBuffer) {
- entries.storage_texels.emplace_back(image);
- } else {
- entries.images.emplace_back(image);
- }
- }
- for (const auto& attribute : ir.GetInputAttributes()) {
- if (IsGenericAttribute(attribute)) {
- entries.attributes.insert(GetGenericAttributeLocation(attribute));
- }
- }
- for (const auto& buffer : entries.const_buffers) {
- entries.enabled_uniform_buffers |= 1U << buffer.GetIndex();
- }
- entries.clip_distances = ir.GetClipDistances();
- entries.shader_length = ir.GetLength();
- entries.uses_warps = ir.UsesWarps();
- return entries;
-}
-
-std::vector<u32> Decompile(const Device& device, const VideoCommon::Shader::ShaderIR& ir,
- ShaderType stage, const VideoCommon::Shader::Registry& registry,
- const Specialization& specialization) {
- return SPIRVDecompiler(device, ir, stage, registry, specialization).Assemble();
-}
-
-} // namespace Vulkan
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.h b/src/video_core/renderer_vulkan/vk_shader_decompiler.h
deleted file mode 100644
index 5d94132a5..000000000
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.h
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <array>
-#include <set>
-#include <vector>
-
-#include "common/common_types.h"
-#include "video_core/engines/maxwell_3d.h"
-#include "video_core/engines/shader_type.h"
-#include "video_core/shader/registry.h"
-#include "video_core/shader/shader_ir.h"
-
-namespace Vulkan {
-
-class Device;
-
-using Maxwell = Tegra::Engines::Maxwell3D::Regs;
-using UniformTexelEntry = VideoCommon::Shader::SamplerEntry;
-using SamplerEntry = VideoCommon::Shader::SamplerEntry;
-using StorageTexelEntry = VideoCommon::Shader::ImageEntry;
-using ImageEntry = VideoCommon::Shader::ImageEntry;
-
-constexpr u32 DESCRIPTOR_SET = 0;
-
-class ConstBufferEntry : public VideoCommon::Shader::ConstBuffer {
-public:
- explicit constexpr ConstBufferEntry(const ConstBuffer& entry_, u32 index_)
- : ConstBuffer{entry_}, index{index_} {}
-
- constexpr u32 GetIndex() const {
- return index;
- }
-
-private:
- u32 index{};
-};
-
-struct GlobalBufferEntry {
- u32 cbuf_index{};
- u32 cbuf_offset{};
- bool is_written{};
-};
-
-struct ShaderEntries {
- u32 NumBindings() const {
- return static_cast<u32>(const_buffers.size() + global_buffers.size() +
- uniform_texels.size() + samplers.size() + storage_texels.size() +
- images.size());
- }
-
- std::vector<ConstBufferEntry> const_buffers;
- std::vector<GlobalBufferEntry> global_buffers;
- std::vector<UniformTexelEntry> uniform_texels;
- std::vector<SamplerEntry> samplers;
- std::vector<StorageTexelEntry> storage_texels;
- std::vector<ImageEntry> images;
- std::set<u32> attributes;
- std::array<bool, Maxwell::NumClipDistances> clip_distances{};
- std::size_t shader_length{};
- u32 enabled_uniform_buffers{};
- bool uses_warps{};
-};
-
-struct Specialization final {
- u32 base_binding{};
-
- // Compute specific
- std::array<u32, 3> workgroup_size{};
- u32 shared_memory_size{};
-
- // Graphics specific
- std::optional<float> point_size;
- std::bitset<Maxwell::NumVertexAttributes> enabled_attributes;
- std::array<Maxwell::VertexAttribute::Type, Maxwell::NumVertexAttributes> attribute_types{};
- bool ndc_minus_one_to_one{};
- bool early_fragment_tests{};
- float alpha_test_ref{};
- Maxwell::ComparisonOp alpha_test_func{};
-};
-// Old gcc versions don't consider this trivially copyable.
-// static_assert(std::is_trivially_copyable_v<Specialization>);
-
-struct SPIRVShader {
- std::vector<u32> code;
- ShaderEntries entries;
-};
-
-ShaderEntries GenerateShaderEntries(const VideoCommon::Shader::ShaderIR& ir);
-
-std::vector<u32> Decompile(const Device& device, const VideoCommon::Shader::ShaderIR& ir,
- Tegra::Engines::ShaderType stage,
- const VideoCommon::Shader::Registry& registry,
- const Specialization& specialization);
-
-} // namespace Vulkan
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:09:29 +0100