png_set_pCAL     2427 third_party/libpng/png.h extern PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr,
png_set_pCAL     1780 third_party/libpng/pngrutil.c    png_set_pCAL(png_ptr, info_ptr, png_ptr->chunkdata, X0, X1, type, nparams,