From 3d65aa4caf88a440eeaf2082b1f5ca3e2c41317c Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Mon, 15 Oct 2018 02:08:31 -0300 Subject: gl_shader_decompiler: Implement HFMA2 instructions --- .../renderer_opengl/gl_shader_decompiler.cpp | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp') diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index ab30aafc3..ca2030e97 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -1964,6 +1964,59 @@ private: instr.alu.saturate_d); break; } + case OpCode::Type::Hfma2: { + if (opcode->GetId() == OpCode::Id::HFMA2_RR) { + ASSERT_MSG(instr.hfma2.rr.precision == Tegra::Shader::HalfPrecision::None, + "Unimplemented"); + } else { + ASSERT_MSG(instr.hfma2.precision == Tegra::Shader::HalfPrecision::None, + "Unimplemented"); + } + const bool saturate = opcode->GetId() == OpCode::Id::HFMA2_RR + ? instr.hfma2.rr.saturate != 0 + : instr.hfma2.saturate != 0; + + const std::string op_a = + GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr8, 0, false), instr.hfma2.type_a); + std::string op_b, op_c; + + switch (opcode->GetId()) { + case OpCode::Id::HFMA2_CR: + op_b = GetHalfFloat(regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset, + GLSLRegister::Type::UnsignedInteger), + instr.hfma2.type_b, false, instr.hfma2.negate_b); + op_c = GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr39, 0, false), + instr.hfma2.type_reg39, false, instr.hfma2.negate_c); + break; + case OpCode::Id::HFMA2_RC: + op_b = GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr39, 0, false), + instr.hfma2.type_reg39, false, instr.hfma2.negate_b); + op_c = GetHalfFloat(regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset, + GLSLRegister::Type::UnsignedInteger), + instr.hfma2.type_b, false, instr.hfma2.negate_c); + break; + case OpCode::Id::HFMA2_RR: + op_b = GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr20, 0, false), + instr.hfma2.type_b, false, instr.hfma2.negate_b); + op_c = GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr39, 0, false), + instr.hfma2.rr.type_c, false, instr.hfma2.rr.negate_c); + break; + case OpCode::Id::HFMA2_IMM_R: + op_b = UnpackHalfImmediate(instr, true); + op_c = GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr39, 0, false), + instr.hfma2.type_reg39, false, instr.hfma2.negate_c); + break; + default: + UNREACHABLE(); + op_c = op_b = "vec2(0)"; + break; + } + + const std::string result = '(' + op_a + " * " + op_b + " + " + op_c + ')'; + + regs.SetRegisterToHalfFloat(instr.gpr0, 0, result, instr.hfma2.merge, 1, 1, saturate); + break; + } case OpCode::Type::Conversion: { switch (opcode->GetId()) { case OpCode::Id::I2I_R: { -- cgit v1.2.3