gdImageScaleBilinear  841 ext/gd/libgd/gd.h gdImagePtr gdImageScaleBilinear(gdImagePtr im, const unsigned int new_width, const unsigned int new_height);
gdImageScaleBilinear 1644 ext/gd/libgd/gd_interpolation.c 			im_scaled = gdImageScaleBilinear(src, new_width, new_height);