diff options
| -rw-r--r-- | src/video_core/engines/shader_bytecode.h | 29 | ||||
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 95 |
2 files changed, 120 insertions, 4 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index 9f64b248b..2526ebf28 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -200,6 +200,14 @@ enum class IMinMaxExchange : u64 { XHi = 3, }; +enum class XmadMode : u64 { + None = 0, + CLo = 1, + CHi = 2, + CSfu = 3, + CBcc = 4, +}; + enum class FlowCondition : u64 { Always = 0xF, Fcsm_Tr = 0x1C, // TODO(bunnei): What is this used for? @@ -457,6 +465,18 @@ union Instruction { } bra; union { + BitField<20, 16, u64> imm20_16; + BitField<36, 1, u64> product_shift_left; + BitField<37, 1, u64> merge_37; + BitField<48, 1, u64> sign_a; + BitField<49, 1, u64> sign_b; + BitField<50, 3, XmadMode> mode; + BitField<52, 1, u64> high_b; + BitField<53, 1, u64> high_a; + BitField<56, 1, u64> merge_56; + } xmad; + + union { BitField<20, 14, u64> offset; BitField<34, 5, u64> index; } cbuf34; @@ -593,6 +613,7 @@ public: IntegerSetPredicate, PredicateSetPredicate, Conversion, + Xmad, Unknown, }; @@ -782,10 +803,10 @@ private: INST("010010110101----", Id::ISET_C, Type::IntegerSet, "ISET_C"), INST("0011011-0101----", Id::ISET_IMM, Type::IntegerSet, "ISET_IMM"), INST("0101000010010---", Id::PSETP, Type::PredicateSetPredicate, "PSETP"), - INST("0011011-00------", Id::XMAD_IMM, Type::Arithmetic, "XMAD_IMM"), - INST("0100111---------", Id::XMAD_CR, Type::Arithmetic, "XMAD_CR"), - INST("010100010-------", Id::XMAD_RC, Type::Arithmetic, "XMAD_RC"), - INST("0101101100------", Id::XMAD_RR, Type::Arithmetic, "XMAD_RR"), + INST("0011011-00------", Id::XMAD_IMM, Type::Xmad, "XMAD_IMM"), + INST("0100111---------", Id::XMAD_CR, Type::Xmad, "XMAD_CR"), + INST("010100010-------", Id::XMAD_RC, Type::Xmad, "XMAD_RC"), + INST("0101101100------", Id::XMAD_RR, Type::Xmad, "XMAD_RR"), }; #undef INST std::stable_sort(table.begin(), table.end(), [](const auto& a, const auto& b) { diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 7e038ac86..6834d7085 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -376,6 +376,8 @@ public: return value; } else if (type == GLSLRegister::Type::Integer) { return "floatBitsToInt(" + value + ')'; + } else if (type == GLSLRegister::Type::UnsignedInteger) { + return "floatBitsToUint(" + value + ')'; } else { UNREACHABLE(); } @@ -1630,6 +1632,99 @@ private: } break; } + case OpCode::Type::Xmad: { + ASSERT_MSG(!instr.xmad.sign_a, "Unimplemented"); + ASSERT_MSG(!instr.xmad.sign_b, "Unimplemented"); + + std::string op_a{regs.GetRegisterAsInteger(instr.gpr8, 0, instr.xmad.sign_a)}; + std::string op_b; + std::string op_c; + + // TODO(bunnei): Needs to be fixed once op_a or op_b is signed + ASSERT_MSG(instr.xmad.sign_a == instr.xmad.sign_b, "Unimplemented"); + const bool is_signed{instr.xmad.sign_a == 1}; + + bool is_merge{}; + switch (opcode->GetId()) { + case OpCode::Id::XMAD_CR: { + is_merge = instr.xmad.merge_56; + op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset, + instr.xmad.sign_b ? GLSLRegister::Type::Integer + : GLSLRegister::Type::UnsignedInteger); + op_c += regs.GetRegisterAsInteger(instr.gpr39, 0, is_signed); + break; + } + case OpCode::Id::XMAD_RR: { + is_merge = instr.xmad.merge_37; + op_b += regs.GetRegisterAsInteger(instr.gpr20, 0, instr.xmad.sign_b); + op_c += regs.GetRegisterAsInteger(instr.gpr39, 0, is_signed); + break; + } + case OpCode::Id::XMAD_RC: { + op_b += regs.GetRegisterAsInteger(instr.gpr39, 0, instr.xmad.sign_b); + op_c += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset, + is_signed ? GLSLRegister::Type::Integer + : GLSLRegister::Type::UnsignedInteger); + break; + } + case OpCode::Id::XMAD_IMM: { + is_merge = instr.xmad.merge_37; + op_b += std::to_string(instr.xmad.imm20_16); + op_c += regs.GetRegisterAsInteger(instr.gpr39, 0, is_signed); + break; + } + default: { + LOG_CRITICAL(HW_GPU, "Unhandled XMAD instruction: {}", opcode->GetName()); + UNREACHABLE(); + } + } + + // TODO(bunnei): Ensure this is right with signed operands + if (instr.xmad.high_a) { + op_a = "((" + op_a + ") >> 16)"; + } else { + op_a = "((" + op_a + ") & 0xFFFF)"; + } + + std::string src2 = '(' + op_b + ')'; // Preserve original source 2 + if (instr.xmad.high_b) { + op_b = '(' + src2 + " >> 16)"; + } else { + op_b = '(' + src2 + " & 0xFFFF)"; + } + + std::string product = '(' + op_a + " * " + op_b + ')'; + if (instr.xmad.product_shift_left) { + product = '(' + product + " << 16)"; + } + + switch (instr.xmad.mode) { + case Tegra::Shader::XmadMode::None: + break; + case Tegra::Shader::XmadMode::CLo: + op_c = "((" + op_c + ") & 0xFFFF)"; + break; + case Tegra::Shader::XmadMode::CHi: + op_c = "((" + op_c + ") >> 16)"; + break; + case Tegra::Shader::XmadMode::CBcc: + op_c = "((" + op_c + ") + (" + src2 + "<< 16))"; + break; + default: { + LOG_CRITICAL(HW_GPU, "Unhandled XMAD mode: {}", + static_cast<u32>(instr.xmad.mode.Value())); + UNREACHABLE(); + } + } + + std::string sum{'(' + product + " + " + op_c + ')'}; + if (is_merge) { + sum = "((" + sum + " & 0xFFFF) | (" + src2 + "<< 16))"; + } + + regs.SetRegisterToInteger(instr.gpr0, is_signed, 0, sum, 1, 1); + break; + } default: { switch (opcode->GetId()) { case OpCode::Id::EXIT: { |