public static Operand[] GetHalfUnpacked(EmitterContext context, Operand src, HalfSwizzle swizzle)
{
switch (swizzle)
{
case HalfSwizzle.F16:
return new Operand[]
{
context.UnpackHalf2x16Low (src),
context.UnpackHalf2x16High(src)
};
case HalfSwizzle.F32: return new Operand[] { src, src };
case HalfSwizzle.H0H0:
return new Operand[]
{
context.UnpackHalf2x16Low(src),
context.UnpackHalf2x16Low(src)
};
case HalfSwizzle.H1H1:
return new Operand[]
{
context.UnpackHalf2x16High(src),
context.UnpackHalf2x16High(src)
};
}
throw new ArgumentException($"Invalid swizzle \"{swizzle}\".");
}
public static Operand[] GetHalfSrc(
EmitterContext context,
HalfSwizzle swizzle,
int ra,
bool negate,
bool absolute)
{
Operand[] operands = GetHalfUnpacked(context, GetSrcReg(context, ra), swizzle);
return FPAbsNeg(context, operands, absolute, negate);
}
public static Operand[] GetHalfSrc(
EmitterContext context,
HalfSwizzle swizzle,
int cbufSlot,
int cbufOffset,
bool negate,
bool absolute)
{
Operand[] operands = GetHalfUnpacked(context, GetSrcCbuf(context, cbufSlot, cbufOffset), swizzle);
return FPAbsNeg(context, operands, absolute, negate);
}
