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GPU: Implemented the IMNMX shader instruction. 

It's similar to the FMNMX instruction but it works on integers.
This commit is contained in:
Subv 2018-07-04 15:25:48 -05:00
parent 81a44d38ee
commit b0c92b80b1
2 changed files with 31 additions and 3 deletions
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20
src/video_core/engines/shader_bytecode.h
View File

@ -194,6 +194,13 @@ enum class UniformType : u64 {
Double = 5,
};
enum class IMinMaxExchange : u64 {
None = 0,
XLo = 1,
XMed = 2,
XHi = 3,
};
union Instruction {
Instruction& operator=(const Instruction& instr) {
value = instr.value;
@ -278,6 +285,13 @@ union Instruction {
BitField<49, 1, u64> negate_a;
} alu_integer;
union {
BitField<39, 3, u64> pred;
BitField<42, 1, u64> negate_pred;
BitField<43, 2, IMinMaxExchange> exchange;
BitField<48, 1, u64> is_signed;
} imnmx;
union {
BitField<54, 1, u64> saturate;
BitField<56, 1, u64> negate_a;
@ -682,9 +696,9 @@ private:
INST("0100110001100---", Id::FMNMX_C, Type::Arithmetic, "FMNMX_C"),
INST("0101110001100---", Id::FMNMX_R, Type::Arithmetic, "FMNMX_R"),
INST("0011100-01100---", Id::FMNMX_IMM, Type::Arithmetic, "FMNMX_IMM"),
INST("0100110000100---", Id::IMNMX_C, Type::Arithmetic, "FMNMX_IMM"),
INST("0101110000100---", Id::IMNMX_R, Type::Arithmetic, "FMNMX_IMM"),
INST("0011100-00100---", Id::IMNMX_IMM, Type::Arithmetic, "FMNMX_IMM"),
INST("0100110000100---", Id::IMNMX_C, Type::ArithmeticInteger, "IMNMX_C"),
INST("0101110000100---", Id::IMNMX_R, Type::ArithmeticInteger, "IMNMX_R"),
INST("0011100-00100---", Id::IMNMX_IMM, Type::ArithmeticInteger, "IMNMX_IMM"),
INST("0100110000000---", Id::BFE_C, Type::Bfe, "BFE_C"),
INST("0101110000000---", Id::BFE_R, Type::Bfe, "BFE_R"),
INST("0011100-00000---", Id::BFE_IMM, Type::Bfe, "BFE_IMM"),

14
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@ -1127,6 +1127,20 @@ private:
WriteLogicOperation(instr.gpr0, instr.alu.lop.operation, op_a, op_b);
break;
}
case OpCode::Id::IMNMX_C:
case OpCode::Id::IMNMX_R:
case OpCode::Id::IMNMX_IMM: {
ASSERT_MSG(instr.imnmx.exchange == Tegra::Shader::IMinMaxExchange::None,
"Unimplemented");
std::string condition =
GetPredicateCondition(instr.imnmx.pred, instr.imnmx.negate_pred != 0);
std::string parameters = op_a + ',' + op_b;
regs.SetRegisterToInteger(instr.gpr0, instr.imnmx.is_signed, 0,
'(' + condition + ") ? min(" + parameters + ") : max(" +
parameters + ')',
1, 1);
break;
}
default: {
LOG_CRITICAL(HW_GPU, "Unhandled ArithmeticInteger instruction: {}",
opcode->GetName());