diff options
Diffstat (limited to '')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 48 |
1 files changed, 35 insertions, 13 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 2f1d6de3c..f5425c31e 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -235,6 +235,14 @@ private: const std::string& suffix; }; +enum class InternalFlag : u64 { + ZeroFlag = 0, + CarryFlag = 1, + OverflowFlag = 2, + NaNFlag = 3, + Amount +}; + /** * Used to manage shader registers that are emulated with GLSL. This class keeps track of the state * of all registers (e.g. whether they are currently being used as Floats or Integers), and @@ -328,13 +336,19 @@ public: void SetRegisterToInteger(const Register& reg, bool is_signed, u64 elem, const std::string& value, u64 dest_num_components, u64 value_num_components, bool is_saturated = false, - u64 dest_elem = 0, Register::Size size = Register::Size::Word) { + u64 dest_elem = 0, Register::Size size = Register::Size::Word, + bool sets_cc = false) { ASSERT_MSG(!is_saturated, "Unimplemented"); const std::string func{is_signed ? "intBitsToFloat" : "uintBitsToFloat"}; SetRegister(reg, elem, func + '(' + ConvertIntegerSize(value, size) + ')', dest_num_components, value_num_components, dest_elem); + + if (sets_cc) { + const std::string zero_condition = "( " + ConvertIntegerSize(value, size) + " == 0 )"; + SetInternalFlag(InternalFlag::ZeroFlag, zero_condition); + } } /** @@ -352,12 +366,23 @@ public: } std::string GetControlCode(const Tegra::Shader::ControlCode cc) const { - const u32 code = static_cast<u32>(cc); - return "controlCode_" + std::to_string(code) + suffix; + switch (cc) { + case Tegra::Shader::ControlCode::NEU: + return "!(" + GetInternalFlag(InternalFlag::ZeroFlag) + ')'; + default: + LOG_CRITICAL(HW_GPU, "Unimplemented Control Code {}", static_cast<u32>(cc)); + UNREACHABLE(); + return "false"; + } } - void SetControlCode(const Tegra::Shader::ControlCode cc, const std::string& value) const { - shader.AddLine(GetControlCode(cc) + " = " + value + ';'); + std::string GetInternalFlag(const InternalFlag ii) const { + const u32 code = static_cast<u32>(ii); + return "internalFlag_" + std::to_string(code) + suffix; + } + + void SetInternalFlag(const InternalFlag ii, const std::string& value) const { + shader.AddLine(GetInternalFlag(ii) + " = " + value + ';'); } /** @@ -423,9 +448,9 @@ public: } declarations.AddNewLine(); - for (u32 cc = 0; cc < 32; cc++) { - const Tegra::Shader::ControlCode code = static_cast<Tegra::Shader::ControlCode>(cc); - declarations.AddLine("bool " + GetControlCode(code) + " = false;"); + for (u32 ii = 0; ii < static_cast<u64>(InternalFlag::Amount); ii++) { + const InternalFlag code = static_cast<InternalFlag>(ii); + declarations.AddLine("bool " + GetInternalFlag(code) + " = false;"); } declarations.AddNewLine(); @@ -1655,11 +1680,8 @@ private: } regs.SetRegisterToInteger(instr.gpr0, instr.conversion.is_output_signed, 0, op_a, 1, - 1, instr.alu.saturate_d, 0, instr.conversion.dest_size); - if (instr.generates_cc.Value() != 0) { - const std::string neucondition = "( " + op_a + " != 0 )"; - regs.SetControlCode(Tegra::Shader::ControlCode::NEU, neucondition); - } + 1, instr.alu.saturate_d, 0, instr.conversion.dest_size, + instr.generates_cc.Value() != 0); break; } case OpCode::Id::I2F_R: |