png_read_png      819 contrib/libtests/pngimage.c    png_read_png(pp, ip, transforms, NULL/*params*/);
png_read_png      354 example.c         png_read_png(png_ptr, info_ptr, png_transforms, NULL);
png_read_png     2467 png.h          PNG_EXPORT(178, void, png_read_png, (png_structrp png_ptr, png_inforp info_ptr,