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gl_shader_decompiler: Implement AST decompiling

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This commit is contained in:
Fernando Sahmkow
2019-06-29 01:44:07 -04:00
committed by FernandoS27
parent 6fdd501113
commit 38fc995f6c
11 changed files with 358 additions and 63 deletions
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25
src/video_core/shader/shader_ir.h
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@ -15,8 +15,8 @@
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/shader_bytecode.h"
#include "video_core/engines/shader_header.h"
#include "video_core/shader/node.h"
#include "video_core/shader/ast.h"
#include "video_core/shader/node.h"
namespace VideoCommon::Shader {
@ -141,15 +141,27 @@ public:
return header;
}
bool IsFlowStackDisabled() const {
return disable_flow_stack;
bool IsDecompiled() const {
return decompiled;
}
ASTNode GetASTProgram() const {
return program_manager.GetProgram();
}
u32 GetASTNumVariables() const {
return program_manager.GetVariables();
}
u32 ConvertAddressToNvidiaSpace(const u32 address) const {
return (address - main_offset) * sizeof(Tegra::Shader::Instruction);
}
/// Returns a condition code evaluated from internal flags
Node GetConditionCode(Tegra::Shader::ConditionCode cc) const;
private:
friend class ASTDecoder;
void Decode();
NodeBlock DecodeRange(u32 begin, u32 end);
@ -214,7 +226,7 @@ private:
/// Generates a node representing an output attribute. Keeps track of used attributes.
Node GetOutputAttribute(Tegra::Shader::Attribute::Index index, u64 element, Node buffer);
/// Generates a node representing an internal flag
Node GetInternalFlag(InternalFlag flag, bool negated = false);
Node GetInternalFlag(InternalFlag flag, bool negated = false) const;
/// Generates a node representing a local memory address
Node GetLocalMemory(Node address);
/// Generates a node representing a shared memory address
@ -272,9 +284,6 @@ private:
/// Returns a predicate combiner operation
OperationCode GetPredicateCombiner(Tegra::Shader::PredOperation operation);
/// Returns a condition code evaluated from internal flags
Node GetConditionCode(Tegra::Shader::ConditionCode cc);
/// Accesses a texture sampler
const Sampler& GetSampler(const Tegra::Shader::Sampler& sampler,
Tegra::Shader::TextureType type, bool is_array, bool is_shadow);
@ -358,7 +367,7 @@ private:
const ProgramCode& program_code;
const u32 main_offset;
const std::size_t program_size;
bool disable_flow_stack{};
bool decompiled{};
u32 coverage_begin{};
u32 coverage_end{};