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69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
#ifndef EMULATOR_INCLUDE_EMULATOR_GRAPHICS_SHADER_RECOMPILER_SRTWALKER_H_
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#define EMULATOR_INCLUDE_EMULATOR_GRAPHICS_SHADER_RECOMPILER_SRTWALKER_H_
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#include "graphics/shader/recompiler/ir/ShaderIR.h"
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#include <span>
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namespace Libs::Graphics::ShaderRecompiler::IR {
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class Value;
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using SrtMemoryReader = bool (*)(void* userdata, uint64_t address, std::span<uint32_t> values);
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struct SrtRuntime {
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std::span<const uint32_t> user_data;
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uint64_t shader_base = 0;
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SrtMemoryReader read_memory = nullptr;
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void* userdata = nullptr;
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SrtMemoryReader read_specialization_memory = nullptr;
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};
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enum class RuntimeValueType { Any, Integer };
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// Collects reachable ReadConst values. Immediate offsets receive compact flat-buffer slots;
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// dynamic offsets remain explicit and are never assigned a fake slot.
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void BuildSrtPlan(Program& program);
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bool ValidateRuntimeValue(const ResourcePlan& program, Value value,
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RuntimeValueType type = RuntimeValueType::Any);
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// Uses the strict reader for values that affect shader specialization.
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SrtRuntime CleanRuntime(SrtRuntime runtime);
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// One memoized evaluation session shared by the entire shader resource refresh.
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class SrtWalker {
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public:
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SrtWalker(const ResourcePlan& program, const SrtRuntime& runtime,
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std::span<const uint8_t> clean_flat_slots = {}, SrtWalker* clean_evaluator = nullptr,
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Value active_mask = {});
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~SrtWalker();
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SrtWalker(const SrtWalker&) = delete;
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SrtWalker& operator=(const SrtWalker&) = delete;
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bool Evaluate(Value value, uint32_t& result);
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bool EvaluateDescriptor(uint32_t source, DescriptorValue& result);
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// An empty span means that all sources are active.
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std::span<const uint8_t> FindActiveSources();
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bool RefreshFlatBuffer(std::vector<uint32_t>& flat);
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private:
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static ResourcePlan::EvaluationContext& AcquireContext(const ResourcePlan& program);
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static float Float32(uint64_t bits);
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bool EvaluateWide(Value value, uint64_t& result);
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bool Arg(const Inst& inst, size_t index, uint64_t& result);
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bool EvaluatePhi(const Inst& inst, uint64_t& result);
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bool EvaluateExtract(const Inst& inst, uint64_t& result);
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bool EvaluateRawRead(const Inst& inst, uint64_t& result);
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bool EvaluateInst(const Inst& inst, uint64_t& result);
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const ResourcePlan& m_program;
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SrtRuntime m_runtime;
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std::span<const uint8_t> m_clean_flat_slots;
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SrtWalker* m_clean_evaluator = nullptr;
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Value m_active_mask;
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ResourcePlan::EvaluationContext& m_context;
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};
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} // namespace Libs::Graphics::ShaderRecompiler::IR
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#endif /* EMULATOR_INCLUDE_EMULATOR_GRAPHICS_SHADER_RECOMPILER_SRTWALKER_H_ */
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