private static void EmitSet(ShaderIrBlock Block, long OpCode, bool IsFloat, ShaderOper Oper)
{
bool NegA = OpCode.Read(43);
bool AbsB = OpCode.Read(44);
bool NegB = OpCode.Read(53);
bool AbsA = OpCode.Read(54);
bool BoolFloat = OpCode.Read(IsFloat ? 52 : 44);
ShaderIrNode OperA = OpCode.Gpr8(), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.Immf: OperB = OpCode.Immf19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrInst CmpInst;
if (IsFloat)
{
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
OperB = GetAluFabsFneg(OperB, AbsB, NegB);
CmpInst = OpCode.CmpF();
}
else
{
CmpInst = OpCode.Cmp();
}
ShaderIrOp Op = new ShaderIrOp(CmpInst, OperA, OperB);
ShaderIrInst LopInst = OpCode.BLop45();
ShaderIrOperPred PNode = OpCode.Pred39();
ShaderIrNode Imm0, Imm1;
if (BoolFloat)
{
Imm0 = new ShaderIrOperImmf(0);
Imm1 = new ShaderIrOperImmf(1);
}
else
{
Imm0 = new ShaderIrOperImm(0);
Imm1 = new ShaderIrOperImm(-1);
}
ShaderIrNode Asg0 = new ShaderIrAsg(OpCode.Gpr0(), Imm0);
ShaderIrNode Asg1 = new ShaderIrAsg(OpCode.Gpr0(), Imm1);
if (LopInst != ShaderIrInst.Band || !PNode.IsConst)
{
ShaderIrOp Op2 = new ShaderIrOp(LopInst, Op, PNode);
Asg0 = new ShaderIrCond(Op2, Asg0, Not: true);
Asg1 = new ShaderIrCond(Op2, Asg1, Not: false);
}
else
{
Asg0 = new ShaderIrCond(Op, Asg0, Not: true);
Asg1 = new ShaderIrCond(Op, Asg1, Not: false);
}
Block.AddNode(OpCode.PredNode(Asg0));
Block.AddNode(OpCode.PredNode(Asg1));
}
private static void EmitF2i(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
IntType Type = GetIntType(OpCode);
if (Type == IntType.U64 ||
Type == IntType.S64)
{
//TODO: 64-bits support.
//Note: GLSL doesn't support 64-bits integers.
throw new NotImplementedException();
}
bool NegA = ((OpCode >> 45) & 1) != 0;
bool AbsA = ((OpCode >> 49) & 1) != 0;
ShaderIrNode OperA;
switch (Oper)
{
case ShaderOper.CR: OperA = GetOperCbuf34(OpCode); break;
case ShaderOper.Immf: OperA = GetOperImmf19_20(OpCode); break;
case ShaderOper.RR: OperA = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
ShaderIrInst RoundInst = GetRoundInst(OpCode);
if (RoundInst != ShaderIrInst.Invalid)
{
OperA = new ShaderIrOp(RoundInst, OperA);
}
bool Signed = Type >= IntType.S8;
int Size = 8 << ((int)Type & 3);
if (Size < 32)
{
uint Mask = uint.MaxValue >> (32 - Size);
float CMin = 0;
float CMax = Mask;
if (Signed)
{
uint HalfMask = Mask >> 1;
CMin -= HalfMask + 1;
CMax = HalfMask;
}
ShaderIrOperImmf IMin = new ShaderIrOperImmf(CMin);
ShaderIrOperImmf IMax = new ShaderIrOperImmf(CMax);
OperA = new ShaderIrOp(ShaderIrInst.Fclamp, OperA, IMin, IMax);
}
ShaderIrInst Inst = Signed
? ShaderIrInst.Ftos
: ShaderIrInst.Ftou;
ShaderIrNode Op = new ShaderIrOp(Inst, OperA);
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
private static void EmitSet(ShaderIrBlock Block, long OpCode, bool IsFloat, ShaderOper Oper)
{
bool Na = ((OpCode >> 43) & 1) != 0;
bool Ab = ((OpCode >> 44) & 1) != 0;
bool Nb = ((OpCode >> 53) & 1) != 0;
bool Aa = ((OpCode >> 54) & 1) != 0;
ShaderIrNode OperA = GetOperGpr8(OpCode), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = GetOperCbuf34(OpCode); break;
case ShaderOper.Imm: OperB = GetOperImm19_20(OpCode); break;
case ShaderOper.Immf: OperB = GetOperImmf19_20(OpCode); break;
case ShaderOper.RR: OperB = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrInst CmpInst;
if (IsFloat)
{
OperA = GetAluAbsNeg(OperA, Aa, Na);
OperB = GetAluAbsNeg(OperB, Ab, Nb);
CmpInst = GetCmpF(OpCode);
}
else
{
CmpInst = GetCmp(OpCode);
}
ShaderIrOp Op = new ShaderIrOp(CmpInst, OperA, OperB);
ShaderIrInst LopInst = GetBLop(OpCode);
ShaderIrOperPred PNode = GetOperPred39(OpCode);
ShaderIrOperImmf Imm0 = new ShaderIrOperImmf(0);
ShaderIrOperImmf Imm1 = new ShaderIrOperImmf(1);
ShaderIrNode Asg0 = new ShaderIrAsg(GetOperGpr0(OpCode), Imm0);
ShaderIrNode Asg1 = new ShaderIrAsg(GetOperGpr0(OpCode), Imm1);
if (LopInst != ShaderIrInst.Band || !PNode.IsConst)
{
ShaderIrOp Op2 = new ShaderIrOp(LopInst, Op, PNode);
Asg0 = new ShaderIrCond(Op2, Asg0, Not: true);
Asg1 = new ShaderIrCond(Op2, Asg1, Not: false);
}
else
{
Asg0 = new ShaderIrCond(Op, Asg0, Not: true);
Asg1 = new ShaderIrCond(Op, Asg1, Not: false);
}
Block.AddNode(GetPredNode(Asg0, OpCode));
Block.AddNode(GetPredNode(Asg1, OpCode));
}
private static void EmitF2I(ShaderIrBlock block, long opCode, ShaderOper oper)
{
IntType type = GetIntType(opCode);
if (type == IntType.U64 ||
type == IntType.S64)
{
//TODO: 64-bits support.
//Note: GLSL doesn't support 64-bits integers.
throw new NotImplementedException();
}
bool negA = opCode.Read(45);
bool absA = opCode.Read(49);
ShaderIrNode operA;
switch (oper)
{
case ShaderOper.Cr: operA = opCode.Cbuf34(); break;
case ShaderOper.Immf: operA = opCode.Immf19_20(); break;
case ShaderOper.Rr: operA = opCode.Gpr20(); break;
default: throw new ArgumentException(nameof(oper));
}
operA = GetAluFabsFneg(operA, absA, negA);
ShaderIrInst roundInst = GetRoundInst(opCode);
if (roundInst != ShaderIrInst.Invalid)
{
operA = new ShaderIrOp(roundInst, operA);
}
bool signed = type >= IntType.S8;
int size = 8 << ((int)type & 3);
if (size < 32)
{
uint mask = uint.MaxValue >> (32 - size);
float cMin = 0;
float cMax = mask;
if (signed)
{
uint halfMask = mask >> 1;
cMin -= halfMask + 1;
cMax = halfMask;
}
ShaderIrOperImmf min = new ShaderIrOperImmf(cMin);
ShaderIrOperImmf max = new ShaderIrOperImmf(cMax);
operA = new ShaderIrOp(ShaderIrInst.Fclamp, operA, min, max);
}
ShaderIrInst inst = signed
? ShaderIrInst.Ftos
: ShaderIrInst.Ftou;
ShaderIrNode op = new ShaderIrOp(inst, operA);
block.AddNode(opCode.PredNode(new ShaderIrAsg(opCode.Gpr0(), op)));
}
private static void EmitSet(ShaderIrBlock block, long opCode, bool isFloat, ShaderOper oper)
{
bool negA = opCode.Read(43);
bool absB = opCode.Read(44);
bool negB = opCode.Read(53);
bool absA = opCode.Read(54);
bool boolFloat = opCode.Read(isFloat ? 52 : 44);
ShaderIrNode operA = opCode.Gpr8(), operB;
switch (oper)
{
case ShaderOper.Cr: operB = opCode.Cbuf34(); break;
case ShaderOper.Imm: operB = opCode.Imm19_20(); break;
case ShaderOper.Immf: operB = opCode.Immf19_20(); break;
case ShaderOper.Rr: operB = opCode.Gpr20(); break;
default: throw new ArgumentException(nameof(oper));
}
ShaderIrInst cmpInst;
if (isFloat)
{
operA = GetAluFabsFneg(operA, absA, negA);
operB = GetAluFabsFneg(operB, absB, negB);
cmpInst = opCode.CmpF();
}
else
{
cmpInst = opCode.Cmp();
}
ShaderIrOp op = new ShaderIrOp(cmpInst, operA, operB);
ShaderIrInst lopInst = opCode.BLop45();
ShaderIrOperPred pNode = opCode.Pred39();
ShaderIrNode imm0, imm1;
if (boolFloat)
{
imm0 = new ShaderIrOperImmf(0);
imm1 = new ShaderIrOperImmf(1);
}
else
{
imm0 = new ShaderIrOperImm(0);
imm1 = new ShaderIrOperImm(-1);
}
ShaderIrNode asg0 = new ShaderIrAsg(opCode.Gpr0(), imm0);
ShaderIrNode asg1 = new ShaderIrAsg(opCode.Gpr0(), imm1);
if (lopInst != ShaderIrInst.Band || !pNode.IsConst)
{
ShaderIrOp op2 = new ShaderIrOp(lopInst, op, pNode);
asg0 = new ShaderIrCond(op2, asg0, not: true);
asg1 = new ShaderIrCond(op2, asg1, not: false);
}
else
{
asg0 = new ShaderIrCond(op, asg0, not: true);
asg1 = new ShaderIrCond(op, asg1, not: false);
}
block.AddNode(opCode.PredNode(asg0));
block.AddNode(opCode.PredNode(asg1));
}