dCenter           928 ext/gd/libgd/gd_interpolation.c         const double dCenter = (double)u / scale_d;
dCenter           930 ext/gd/libgd/gd_interpolation.c         register int iLeft = MAX(0, (int)floor (dCenter - width_d));
dCenter           931 ext/gd/libgd/gd_interpolation.c         int iRight = MIN((int)ceil(dCenter + width_d), (int)src_size - 1);
dCenter           948 ext/gd/libgd/gd_interpolation.c             dTotalWeight += (res->ContribRow[u].Weights[iSrc-iLeft] =  scale_f_d * (*pFilter)(scale_f_d * (dCenter - (double)iSrc)));