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Implemented Internal Flags

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This commit is contained in:
FernandoS27 2018-09-17 18:16:06 -04:00
parent e4bb759c4b
commit 567a5524b9
1 changed files with 35 additions and 13 deletions
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48
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -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: