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Merge pull request #516 from Subv/f2i_r

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GPU: Implemented the F2I_R shader instruction.
This commit is contained in:
bunnei 2018-06-05 22:01:29 -04:00 committed by GitHub
commit 5fb99e6a16
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2 changed files with 64 additions and 7 deletions
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24
src/video_core/engines/shader_bytecode.h
View File

@ -173,6 +173,13 @@ enum class SubOp : u64 {
Min = 0x8,
};
enum class FloatRoundingOp : u64 {
None = 0,
Floor = 1,
Ceil = 2,
Trunc = 3,
};
union Instruction {
Instruction& operator=(const Instruction& instr) {
value = instr.value;
@ -290,11 +297,20 @@ union Instruction {
union {
BitField<10, 2, Register::Size> size;
BitField<13, 1, u64> is_signed;
BitField<12, 1, u64> is_output_signed;
BitField<13, 1, u64> is_input_signed;
BitField<41, 2, u64> selector;
BitField<45, 1, u64> negate_a;
BitField<49, 1, u64> abs_a;
BitField<50, 1, u64> saturate_a;
union {
BitField<39, 2, FloatRoundingOp> rounding;
} f2i;
union {
BitField<39, 4, u64> rounding;
} f2f;
} conversion;
union {
@ -560,9 +576,9 @@ private:
INST("0100110010101---", Id::F2F_C, Type::Conversion, "F2F_C"),
INST("0101110010101---", Id::F2F_R, Type::Conversion, "F2F_R"),
INST("0011100-10101---", Id::F2F_IMM, Type::Conversion, "F2F_IMM"),
INST("0100110010110---", Id::F2I_C, Type::Arithmetic, "F2I_C"),
INST("0101110010110---", Id::F2I_R, Type::Arithmetic, "F2I_R"),
INST("0011100-10110---", Id::F2I_IMM, Type::Arithmetic, "F2I_IMM"),
INST("0100110010110---", Id::F2I_C, Type::Conversion, "F2I_C"),
INST("0101110010110---", Id::F2I_R, Type::Conversion, "F2I_R"),
INST("0011100-10110---", Id::F2I_IMM, Type::Conversion, "F2I_IMM"),
INST("0100110010011---", Id::MOV_C, Type::Arithmetic, "MOV_C"),
INST("0101110010011---", Id::MOV_R, Type::Arithmetic, "MOV_R"),
INST("0011100-10011---", Id::MOV_IMM, Type::Arithmetic, "MOV_IMM"),

47
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@ -991,18 +991,20 @@ private:
ASSERT_MSG(!instr.conversion.selector, "Unimplemented");
std::string op_a =
regs.GetRegisterAsInteger(instr.gpr20, 0, instr.conversion.is_signed);
regs.GetRegisterAsInteger(instr.gpr20, 0, instr.conversion.is_input_signed);
if (instr.conversion.abs_a) {
op_a = "abs(" + op_a + ')';
}
regs.SetRegisterToInteger(instr.gpr0, instr.conversion.is_signed, 0, op_a, 1, 1);
regs.SetRegisterToInteger(instr.gpr0, instr.conversion.is_output_signed, 0, op_a, 1,
1);
break;
}
case OpCode::Id::I2F_R: {
ASSERT_MSG(!instr.conversion.selector, "Unimplemented");
std::string op_a =
regs.GetRegisterAsInteger(instr.gpr20, 0, instr.conversion.is_signed);
regs.GetRegisterAsInteger(instr.gpr20, 0, instr.conversion.is_input_signed);
if (instr.conversion.abs_a) {
op_a = "abs(" + op_a + ')';
@ -1012,6 +1014,8 @@ private:
break;
}
case OpCode::Id::F2F_R: {
// TODO(Subv): Implement rounding operations.
ASSERT_MSG(instr.conversion.f2f.rounding == 0, "Unimplemented rounding operation");
std::string op_a = regs.GetRegisterAsFloat(instr.gpr20);
if (instr.conversion.abs_a) {
@ -1021,6 +1025,43 @@ private:
regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1);
break;
}
case OpCode::Id::F2I_R: {
std::string op_a = regs.GetRegisterAsFloat(instr.gpr20);
if (instr.conversion.abs_a) {
op_a = "abs(" + op_a + ')';
}
using Tegra::Shader::FloatRoundingOp;
switch (instr.conversion.f2i.rounding) {
case FloatRoundingOp::None:
break;
case FloatRoundingOp::Floor:
op_a = "floor(" + op_a + ')';
break;
case FloatRoundingOp::Ceil:
op_a = "ceil(" + op_a + ')';
break;
case FloatRoundingOp::Trunc:
op_a = "trunc(" + op_a + ')';
break;
default:
NGLOG_CRITICAL(HW_GPU, "Unimplemented f2i rounding mode {}",
static_cast<u32>(instr.conversion.f2i.rounding.Value()));
UNREACHABLE();
break;
}
if (instr.conversion.is_output_signed) {
op_a = "int(" + op_a + ')';
} else {
op_a = "uint(" + op_a + ')';
}
regs.SetRegisterToInteger(instr.gpr0, instr.conversion.is_output_signed, 0, op_a, 1,
1);
break;
}
default: {
NGLOG_CRITICAL(HW_GPU, "Unhandled conversion instruction: {}", opcode->GetName());
UNREACHABLE();