png_free_default  307 third_party/libpng/pngmem.c png_free_default(png_structp png_ptr, png_voidp ptr)
png_free_default  542 third_party/libpng/pngmem.c png_free_default(png_structp png_ptr, png_voidp ptr)
png_free_default  208 third_party/libpng/pngusr.h #define png_free_default                wk_png_free_default