public static void Ipa(EmitterContext context)
{
OpCodeIpa op = (OpCodeIpa)context.CurrOp;
context.FlagAttributeRead(op.AttributeOffset);
Operand res = Attribute(op.AttributeOffset);
if (op.AttributeOffset >= AttributeConsts.UserAttributeBase &&
op.AttributeOffset < AttributeConsts.UserAttributeEnd)
{
int index = (op.AttributeOffset - AttributeConsts.UserAttributeBase) >> 4;
if (context.Config.ImapTypes[index].GetFirstUsedType() == PixelImap.Perspective)
{
res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
}
}
if (op.Mode == InterpolationMode.Default)
{
Operand srcB = GetSrcB(context);
res = context.FPMultiply(res, srcB);
}
res = context.FPSaturate(res, op.Saturate);
context.Copy(GetDest(context), res);
}
public static void Ipa(EmitterContext context)
{
OpCodeIpa op = (OpCodeIpa)context.CurrOp;
Operand srcA = new Operand(OperandType.Attribute, op.AttributeOffset);
Operand srcB = GetSrcB(context);
context.Copy(GetDest(context), srcA);
}
public static void Ipa(EmitterContext context)
{
OpCodeIpa op = (OpCodeIpa)context.CurrOp;
InterpolationQualifier iq = InterpolationQualifier.None;
switch (op.Mode)
{
case InterpolationMode.Pass: iq = InterpolationQualifier.NoPerspective; break;
}
Operand srcA = Attribute(op.AttributeOffset, iq);
Operand res = context.FPSaturate(srcA, op.Saturate);
context.Copy(GetDest(context), res);
}
public static void Ipa(EmitterContext context)
{
OpCodeIpa op = (OpCodeIpa)context.CurrOp;
context.FlagAttributeRead(op.AttributeOffset);
Operand res;
if (op.Idx)
{
Operand userAttrOffset = context.ISubtract(GetSrcA(context), Const(AttributeConsts.UserAttributeBase));
Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
res = context.LoadAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, Const(0));
res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
context.Config.SetUsedFeature(FeatureFlags.IaIndexing);
}
else
{
res = Attribute(op.AttributeOffset);
if (op.AttributeOffset >= AttributeConsts.UserAttributeBase &&
op.AttributeOffset < AttributeConsts.UserAttributeEnd)
{
int index = (op.AttributeOffset - AttributeConsts.UserAttributeBase) >> 4;
if (context.Config.ImapTypes[index].GetFirstUsedType() == PixelImap.Perspective)
{
res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
}
}
}
if (op.Mode == InterpolationMode.Default)
{
Operand srcB = GetSrcB(context);
res = context.FPMultiply(res, srcB);
}
res = context.FPSaturate(res, op.Saturate);
context.Copy(GetDest(context), res);
}
