diff options
Diffstat (limited to 'src/video_core/renderer_opengl')
-rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 103 |
1 files changed, 102 insertions, 1 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 81ffb24e4..dec291a7d 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -278,7 +278,7 @@ public: const Maxwell3D::Regs::ShaderStage& stage, const std::string& suffix, const Tegra::Shader::Header& header) : shader{shader}, declarations{declarations}, stage{stage}, suffix{suffix}, header{header}, - fixed_pipeline_output_attributes_used{} { + fixed_pipeline_output_attributes_used{}, local_memory_size{0} { BuildRegisterList(); BuildInputList(); } @@ -436,6 +436,25 @@ public: shader.AddLine(dest + " = " + src + ';'); } + std::string GetLocalMemoryAsFloat(const std::string& index) { + return "lmem[" + index + ']'; + } + + std::string GetLocalMemoryAsInteger(const std::string& index, bool is_signed = false) { + const std::string func{is_signed ? "floatToIntBits" : "floatBitsToUint"}; + return func + "(lmem[" + index + "])"; + } + + void SetLocalMemoryAsFloat(const std::string& index, const std::string& value) { + shader.AddLine("lmem[" + index + "] = " + value + ';'); + } + + void SetLocalMemoryAsInteger(const std::string& index, const std::string& value, + bool is_signed = false) { + const std::string func{is_signed ? "intBitsToFloat" : "uintBitsToFloat"}; + shader.AddLine("lmem[" + index + "] = " + func + '(' + value + ");"); + } + std::string GetControlCode(const Tegra::Shader::ControlCode cc) const { switch (cc) { case Tegra::Shader::ControlCode::NEU: @@ -533,6 +552,7 @@ public: void GenerateDeclarations(const std::string& suffix) { GenerateVertex(); GenerateRegisters(suffix); + GenerateLocalMemory(); GenerateInternalFlags(); GenerateInputAttrs(); GenerateOutputAttrs(); @@ -578,6 +598,10 @@ public: return entry.GetName(); } + void SetLocalMemory(u64 lmem) { + local_memory_size = lmem; + } + private: /// Generates declarations for registers. void GenerateRegisters(const std::string& suffix) { @@ -588,6 +612,15 @@ private: declarations.AddNewLine(); } + /// Generates declarations for local memory. + void GenerateLocalMemory() { + if (local_memory_size > 0) { + declarations.AddLine("float lmem[" + std::to_string((local_memory_size - 1 + 4) / 4) + + "];"); + declarations.AddNewLine(); + } + } + /// Generates declarations for internal flags. void GenerateInternalFlags() { for (u32 ii = 0; ii < static_cast<u64>(InternalFlag::Amount); ii++) { @@ -895,6 +928,7 @@ private: const std::string& suffix; const Tegra::Shader::Header& header; std::unordered_set<Attribute::Index> fixed_pipeline_output_attributes_used; + u64 local_memory_size; }; class GLSLGenerator { @@ -904,6 +938,8 @@ public: : subroutines(subroutines), program_code(program_code), main_offset(main_offset), stage(stage), suffix(suffix) { std::memcpy(&header, program_code.data(), sizeof(Tegra::Shader::Header)); + local_memory_size = header.GetLocalMemorySize(); + regs.SetLocalMemory(local_memory_size); Generate(suffix); } @@ -2324,6 +2360,39 @@ private: shader.AddLine("}"); break; } + case OpCode::Id::LD_L: { + // Add an extra scope and declare the index register inside to prevent + // overwriting it in case it is used as an output of the LD instruction. + shader.AddLine('{'); + ++shader.scope; + + std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " + + std::to_string(instr.smem_imm.Value()) + ')'; + + shader.AddLine("uint index = (" + op + " / 4);"); + + const std::string op_a = regs.GetLocalMemoryAsFloat("index"); + + if (instr.ld_l.unknown != 1) { + LOG_CRITICAL(HW_GPU, "LD_L Unhandled mode: {}", + static_cast<unsigned>(instr.ld_l.unknown.Value())); + UNREACHABLE(); + } + + switch (instr.ldst_sl.type.Value()) { + case Tegra::Shader::StoreType::Bytes32: + regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1); + break; + default: + LOG_CRITICAL(HW_GPU, "LD_L Unhandled type: {}", + static_cast<unsigned>(instr.ldst_sl.type.Value())); + UNREACHABLE(); + } + + --shader.scope; + shader.AddLine('}'); + break; + } case OpCode::Id::ST_A: { ASSERT_MSG(instr.gpr8.Value() == Register::ZeroIndex, "Indirect attribute loads are not supported"); @@ -2352,6 +2421,37 @@ private: break; } + case OpCode::Id::ST_L: { + // Add an extra scope and declare the index register inside to prevent + // overwriting it in case it is used as an output of the LD instruction. + shader.AddLine('{'); + ++shader.scope; + + std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " + + std::to_string(instr.smem_imm.Value()) + ')'; + + shader.AddLine("uint index = (" + op + " / 4);"); + + if (instr.st_l.unknown != 0) { + LOG_CRITICAL(HW_GPU, "ST_L Unhandled mode: {}", + static_cast<unsigned>(instr.st_l.unknown.Value())); + UNREACHABLE(); + } + + switch (instr.ldst_sl.type.Value()) { + case Tegra::Shader::StoreType::Bytes32: + regs.SetLocalMemoryAsFloat("index", regs.GetRegisterAsFloat(instr.gpr0)); + break; + default: + LOG_CRITICAL(HW_GPU, "ST_L Unhandled type: {}", + static_cast<unsigned>(instr.ldst_sl.type.Value())); + UNREACHABLE(); + } + + --shader.scope; + shader.AddLine('}'); + break; + } case OpCode::Id::TEX: { Tegra::Shader::TextureType texture_type{instr.tex.texture_type}; std::string coord; @@ -3575,6 +3675,7 @@ private: const u32 main_offset; Maxwell3D::Regs::ShaderStage stage; const std::string& suffix; + u64 local_memory_size; ShaderWriter shader; ShaderWriter declarations; |