void Calculate(Image.IImageFilter filter, bool normalization)
{
double r = filter.GetRadius();
ReallocLut(r);
int i;
int pivot = Diameter << (ImgSubPixConst.SHIFT - 1);
for (i = 0; i < pivot; i++)
{
double x = (double)i / (double)ImgSubPixConst.SCALE;
double y = filter.CalculateWeight(x);
m_weight_array[pivot + i] =
m_weight_array[pivot - i] = AggBasics.iround(y * ImgFilterConst.SCALE);
}
int end = (Diameter << ImgSubPixConst.SHIFT) - 1;
m_weight_array[0] = m_weight_array[end];
if (normalization)
{
Normalize();
}
}
//---------------------------------
//from vector clipper
static int upscale(double v)
{
return AggBasics.iround(v * poly_subpix.SCALE);
}