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-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp71
1 files changed, 39 insertions, 32 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 96a4ca6fe..5fae95788 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -42,13 +42,14 @@ enum class ExitMethod {
struct Subroutine {
/// Generates a name suitable for GLSL source code.
std::string GetName() const {
- return "sub_" + std::to_string(begin) + '_' + std::to_string(end);
+ return "sub_" + std::to_string(begin) + '_' + std::to_string(end) + '_' + suffix;
}
- u32 begin; ///< Entry point of the subroutine.
- u32 end; ///< Return point of the subroutine.
- ExitMethod exit_method; ///< Exit method of the subroutine.
- std::set<u32> labels; ///< Addresses refereced by JMP instructions.
+ u32 begin; ///< Entry point of the subroutine.
+ u32 end; ///< Return point of the subroutine.
+ const std::string& suffix; ///< Suffix of the shader, used to make a unique subroutine name
+ ExitMethod exit_method; ///< Exit method of the subroutine.
+ std::set<u32> labels; ///< Addresses refereced by JMP instructions.
bool operator<(const Subroutine& rhs) const {
return std::tie(begin, end) < std::tie(rhs.begin, rhs.end);
@@ -58,11 +59,11 @@ struct Subroutine {
/// Analyzes shader code and produces a set of subroutines.
class ControlFlowAnalyzer {
public:
- ControlFlowAnalyzer(const ProgramCode& program_code, u32 main_offset)
+ ControlFlowAnalyzer(const ProgramCode& program_code, u32 main_offset, const std::string& suffix)
: program_code(program_code) {
// Recursively finds all subroutines.
- const Subroutine& program_main = AddSubroutine(main_offset, PROGRAM_END);
+ const Subroutine& program_main = AddSubroutine(main_offset, PROGRAM_END, suffix);
if (program_main.exit_method != ExitMethod::AlwaysEnd)
throw DecompileFail("Program does not always end");
}
@@ -77,12 +78,12 @@ private:
std::map<std::pair<u32, u32>, ExitMethod> exit_method_map;
/// Adds and analyzes a new subroutine if it is not added yet.
- const Subroutine& AddSubroutine(u32 begin, u32 end) {
- auto iter = subroutines.find(Subroutine{begin, end});
+ const Subroutine& AddSubroutine(u32 begin, u32 end, const std::string& suffix) {
+ auto iter = subroutines.find(Subroutine{begin, end, suffix});
if (iter != subroutines.end())
return *iter;
- Subroutine subroutine{begin, end};
+ Subroutine subroutine{begin, end, suffix};
subroutine.exit_method = Scan(begin, end, subroutine.labels);
if (subroutine.exit_method == ExitMethod::Undetermined)
throw DecompileFail("Recursive function detected");
@@ -191,7 +192,8 @@ public:
UnsignedInteger,
};
- GLSLRegister(size_t index, ShaderWriter& shader) : index{index}, shader{shader} {}
+ GLSLRegister(size_t index, ShaderWriter& shader, const std::string& suffix)
+ : index{index}, shader{shader}, suffix{suffix} {}
/// Gets the GLSL type string for a register
static std::string GetTypeString(Type type) {
@@ -216,7 +218,7 @@ public:
/// Returns a GLSL string representing the current state of the register
const std::string GetActiveString() {
declr_type.insert(active_type);
- return GetPrefixString(active_type) + std::to_string(index);
+ return GetPrefixString(active_type) + std::to_string(index) + '_' + suffix;
}
/// Returns true if the active type is a float
@@ -251,6 +253,7 @@ private:
ShaderWriter& shader;
Type active_type{Type::Float};
std::set<Type> declr_type;
+ const std::string& suffix;
};
/**
@@ -262,8 +265,8 @@ private:
class GLSLRegisterManager {
public:
GLSLRegisterManager(ShaderWriter& shader, ShaderWriter& declarations,
- const Maxwell3D::Regs::ShaderStage& stage)
- : shader{shader}, declarations{declarations}, stage{stage} {
+ const Maxwell3D::Regs::ShaderStage& stage, const std::string& suffix)
+ : shader{shader}, declarations{declarations}, stage{stage}, suffix{suffix} {
BuildRegisterList();
}
@@ -430,12 +433,12 @@ public:
}
/// Add declarations for registers
- void GenerateDeclarations() {
+ void GenerateDeclarations(const std::string& suffix) {
for (const auto& reg : regs) {
for (const auto& type : reg.DeclaredTypes()) {
declarations.AddLine(GLSLRegister::GetTypeString(type) + ' ' +
- GLSLRegister::GetPrefixString(type) +
- std::to_string(reg.GetIndex()) + " = 0;");
+ reg.GetPrefixString(type) + std::to_string(reg.GetIndex()) +
+ '_' + suffix + " = 0;");
}
}
declarations.AddNewLine();
@@ -558,7 +561,7 @@ private:
/// Build the GLSL register list.
void BuildRegisterList() {
for (size_t index = 0; index < Register::NumRegisters; ++index) {
- regs.emplace_back(index, shader);
+ regs.emplace_back(index, shader, suffix);
}
}
@@ -620,16 +623,17 @@ private:
std::array<ConstBufferEntry, Maxwell3D::Regs::MaxConstBuffers> declr_const_buffers;
std::vector<SamplerEntry> used_samplers;
const Maxwell3D::Regs::ShaderStage& stage;
+ const std::string& suffix;
};
class GLSLGenerator {
public:
GLSLGenerator(const std::set<Subroutine>& subroutines, const ProgramCode& program_code,
- u32 main_offset, Maxwell3D::Regs::ShaderStage stage)
+ u32 main_offset, Maxwell3D::Regs::ShaderStage stage, const std::string& suffix)
: subroutines(subroutines), program_code(program_code), main_offset(main_offset),
- stage(stage) {
+ stage(stage), suffix(suffix) {
- Generate();
+ Generate(suffix);
}
std::string GetShaderCode() {
@@ -644,7 +648,7 @@ public:
private:
/// Gets the Subroutine object corresponding to the specified address.
const Subroutine& GetSubroutine(u32 begin, u32 end) const {
- auto iter = subroutines.find(Subroutine{begin, end});
+ auto iter = subroutines.find(Subroutine{begin, end, suffix});
ASSERT(iter != subroutines.end());
return *iter;
}
@@ -689,7 +693,7 @@ private:
// Can't assign to the constant predicate.
ASSERT(pred != static_cast<u64>(Pred::UnusedIndex));
- std::string variable = 'p' + std::to_string(pred);
+ std::string variable = 'p' + std::to_string(pred) + '_' + suffix;
shader.AddLine(variable + " = " + value + ';');
declr_predicates.insert(std::move(variable));
}
@@ -707,7 +711,7 @@ private:
if (index == static_cast<u64>(Pred::UnusedIndex))
variable = "true";
else
- variable = 'p' + std::to_string(index);
+ variable = 'p' + std::to_string(index) + '_' + suffix;
if (negate) {
return "!(" + variable + ')';
@@ -1728,7 +1732,7 @@ private:
return program_counter;
}
- void Generate() {
+ void Generate(const std::string& suffix) {
// Add declarations for all subroutines
for (const auto& subroutine : subroutines) {
shader.AddLine("bool " + subroutine.GetName() + "();");
@@ -1736,7 +1740,7 @@ private:
shader.AddNewLine();
// Add the main entry point
- shader.AddLine("bool exec_shader() {");
+ shader.AddLine("bool exec_" + suffix + "() {");
++shader.scope;
CallSubroutine(GetSubroutine(main_offset, PROGRAM_END));
--shader.scope;
@@ -1799,7 +1803,7 @@ private:
/// Add declarations for registers
void GenerateDeclarations() {
- regs.GenerateDeclarations();
+ regs.GenerateDeclarations(suffix);
for (const auto& pred : declr_predicates) {
declarations.AddLine("bool " + pred + " = false;");
@@ -1812,27 +1816,30 @@ private:
const ProgramCode& program_code;
const u32 main_offset;
Maxwell3D::Regs::ShaderStage stage;
+ const std::string& suffix;
ShaderWriter shader;
ShaderWriter declarations;
- GLSLRegisterManager regs{shader, declarations, stage};
+ GLSLRegisterManager regs{shader, declarations, stage, suffix};
// Declarations
std::set<std::string> declr_predicates;
}; // namespace Decompiler
std::string GetCommonDeclarations() {
- std::string declarations = "bool exec_shader();\n";
+ std::string declarations;
declarations += "#define MAX_CONSTBUFFER_ELEMENTS " +
std::to_string(RasterizerOpenGL::MaxConstbufferSize / (sizeof(GLvec4)));
+ declarations += '\n';
return declarations;
}
boost::optional<ProgramResult> DecompileProgram(const ProgramCode& program_code, u32 main_offset,
- Maxwell3D::Regs::ShaderStage stage) {
+ Maxwell3D::Regs::ShaderStage stage,
+ const std::string& suffix) {
try {
- auto subroutines = ControlFlowAnalyzer(program_code, main_offset).GetSubroutines();
- GLSLGenerator generator(subroutines, program_code, main_offset, stage);
+ auto subroutines = ControlFlowAnalyzer(program_code, main_offset, suffix).GetSubroutines();
+ GLSLGenerator generator(subroutines, program_code, main_offset, stage, suffix);
return ProgramResult{generator.GetShaderCode(), generator.GetEntries()};
} catch (const DecompileFail& exception) {
LOG_ERROR(HW_GPU, "Shader decompilation failed: {}", exception.what());
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 05:51:13 +0200