private HlslTreeNode CreateInstructionTree(InstructionToken instruction, RegisterComponentKey destinationKey)
{
int componentIndex = destinationKey.ComponentIndex;
switch (instruction.Opcode)
{
case Opcode.Dcl:
{
var shaderInput = new RegisterInputNode(destinationKey);
return(shaderInput);
}
case Opcode.Def:
{
var constant = new ConstantNode(instruction.GetParamSingle(componentIndex + 1));
return(constant);
}
case Opcode.DefI:
{
var constant = new ConstantNode(instruction.GetParamInt(componentIndex + 1));
return(constant);
}
case Opcode.DefB:
{
throw new NotImplementedException();
}
case Opcode.Abs:
case Opcode.Add:
case Opcode.Cmp:
case Opcode.Frc:
case Opcode.Lrp:
case Opcode.Mad:
case Opcode.Max:
case Opcode.Min:
case Opcode.Mov:
case Opcode.Mul:
case Opcode.Pow:
case Opcode.Rcp:
case Opcode.Rsq:
case Opcode.SinCos:
case Opcode.Sge:
case Opcode.Slt:
{
HlslTreeNode[] inputs = GetInputs(instruction, componentIndex);
switch (instruction.Opcode)
{
case Opcode.Abs:
return(new AbsoluteOperation(inputs[0]));
case Opcode.Cmp:
return(new CompareOperation(inputs[0], inputs[1], inputs[2]));
case Opcode.Frc:
return(new FractionalOperation(inputs[0]));
case Opcode.Lrp:
return(new LinearInterpolateOperation(inputs[0], inputs[1], inputs[2]));
case Opcode.Max:
return(new MaximumOperation(inputs[0], inputs[1]));
case Opcode.Min:
return(new MinimumOperation(inputs[0], inputs[1]));
case Opcode.Mov:
return(new MoveOperation(inputs[0]));
case Opcode.Add:
return(new AddOperation(inputs[0], inputs[1]));
case Opcode.Mul:
return(new MultiplyOperation(inputs[0], inputs[1]));
case Opcode.Mad:
return(new MultiplyAddOperation(inputs[0], inputs[1], inputs[2]));
case Opcode.Pow:
return(new PowerOperation(inputs[0], inputs[1]));
case Opcode.Rcp:
return(new ReciprocalOperation(inputs[0]));
case Opcode.Rsq:
return(new ReciprocalSquareRootOperation(inputs[0]));
case Opcode.SinCos:
if (componentIndex == 0)
{
return(new CosineOperation(inputs[0]));
}
return(new SineOperation(inputs[0]));
case Opcode.Sge:
return(new SignGreaterOrEqualOperation(inputs[0], inputs[1]));
case Opcode.Slt:
return(new SignLessOperation(inputs[0], inputs[1]));
default:
throw new NotImplementedException();
}
}
case Opcode.Tex:
case Opcode.TexLDL:
return(CreateTextureLoadOutputNode(instruction, componentIndex));
case Opcode.DP2Add:
return(CreateDotProduct2AddNode(instruction));
case Opcode.Dp3:
case Opcode.Dp4:
return(CreateDotProductNode(instruction));
case Opcode.Nrm:
return(CreateNormalizeOutputNode(instruction, componentIndex));
default:
throw new NotImplementedException($"{instruction.Opcode} not implemented");
}
}
private string CompileConstant(ConstantNode firstConstant)
{
return(firstConstant.Value.ToString(_culture));
}