diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp')
-rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
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: { |