private static int GetComponentSizeInBytesLog2(SuatomSize size)
{
return(size switch
{
SuatomSize.U32 => 2,
SuatomSize.S32 => 2,
SuatomSize.U64 => 3,
SuatomSize.F32FtzRn => 2,
SuatomSize.F16x2FtzRn => 2,
SuatomSize.S64 => 3,
SuatomSize.Sd32 => 2,
SuatomSize.Sd64 => 3,
_ => 2
});
private static void EmitSured(
EmitterContext context,
SuDim dimensions,
RedOp atomicOp,
SuatomSize size,
int imm,
int srcA,
int srcB,
int srcC,
bool byteAddress,
bool isBindless)
{
SamplerType type = ConvertSamplerType(dimensions);
if (type == SamplerType.None)
{
context.Config.GpuAccessor.Log("Invalid image reduction sampler type.");
return;
}
Operand Ra()
{
if (srcA > RegisterConsts.RegisterZeroIndex)
{
return(Const(0));
}
return(context.Copy(Register(srcA++, RegisterType.Gpr)));
}
Operand Rb()
{
if (srcB > RegisterConsts.RegisterZeroIndex)
{
return(Const(0));
}
return(context.Copy(Register(srcB++, RegisterType.Gpr)));
}
List <Operand> sourcesList = new List <Operand>();
if (isBindless)
{
sourcesList.Add(context.Copy(GetSrcReg(context, srcC)));
}
int coordsCount = type.GetDimensions();
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(Ra());
}
if (Sample1DAs2D && (type & SamplerType.Mask) == SamplerType.Texture1D)
{
sourcesList.Add(Const(0));
type &= ~SamplerType.Mask;
type |= SamplerType.Texture2D;
}
if (type.HasFlag(SamplerType.Array))
{
sourcesList.Add(Ra());
type |= SamplerType.Array;
}
if (byteAddress)
{
int xIndex = isBindless ? 1 : 0;
sourcesList[xIndex] = context.ShiftRightS32(sourcesList[xIndex], Const(GetComponentSizeInBytesLog2(size)));
}
// TODO: FP and 64-bit formats.
TextureFormat format = size == SuatomSize.Sd32 || size == SuatomSize.Sd64
? (isBindless ? TextureFormat.Unknown : context.Config.GetTextureFormatAtomic(imm))
: GetTextureFormat(size);
sourcesList.Add(Rb());
Operand[] sources = sourcesList.ToArray();
TextureFlags flags = GetAtomicOpFlags((SuatomOp)atomicOp);
if (isBindless)
{
flags |= TextureFlags.Bindless;
}
TextureOperation operation = context.CreateTextureOperation(
Instruction.ImageAtomic,
type,
format,
flags,
imm,
0,
null,
sources);
context.Add(operation);
}
