png_const_doublep 1669 3rdparty/libpng/png.h     int heuristic_method, int num_weights, png_const_doublep filter_weights,
png_const_doublep 1670 3rdparty/libpng/png.h     png_const_doublep filter_costs));
png_const_doublep 1276 3rdparty/libpng/pngwrite.c     int num_weights, png_const_doublep filter_weights,
png_const_doublep 1277 3rdparty/libpng/pngwrite.c     png_const_doublep filter_costs)