png_set_mem_fn   1790 3rdparty/libpng/png.h PNG_EXPORT(82, void, png_set_mem_fn, (png_structp png_ptr, png_voidp mem_ptr,
png_set_mem_fn     94 3rdparty/libpng/pngread.c    png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn);
png_set_mem_fn    513 3rdparty/libpng/pngwrite.c    png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn);