32    png_debug(1, "in png_write_info_before_PLTE");  in png_write_info_before_PLTE()
110       png_debug(5, "writing extra chunks");  in png_write_info_before_PLTE()
141    png_debug(1, "in png_write_info");  in png_write_info()
288       png_debug(5, "writing extra chunks");  in png_write_info()
316    png_debug(1, "in png_write_end");  in png_write_end()
391       png_debug(5, "writing extra chunks");  in png_write_end()
433    png_debug(1, "in png_convert_from_struct_tm");  in png_convert_from_struct_tm()
448    png_debug(1, "in png_convert_from_time_t");  in png_convert_from_time_t()
483    png_debug(1, "in png_create_write_struct");  in png_create_write_struct_2()
689    png_debug(1, "in png_write_init_3");  in png_write_init_3()
742    png_debug(1, "in png_write_rows");  in png_write_rows()
767    png_debug(1, "in png_write_image");  in png_write_image()
974    png_debug(1, "in png_set_flush");  in png_set_flush()
987    png_debug(1, "in png_write_flush");  in png_write_flush()
1048    png_debug(1, "in png_destroy_write_struct");  in png_destroy_write_struct()
1123    png_debug(1, "in png_write_destroy");  in png_write_destroy()
1181    png_debug(1, "in png_set_filter");  in png_set_filter()
1305    png_debug(1, "in png_set_filter_heuristics");  in png_set_filter_heuristics()
1420    png_debug(1, "in png_set_compression_level");  in png_set_compression_level()
1431    png_debug(1, "in png_set_compression_mem_level");  in png_set_compression_mem_level()
1442    png_debug(1, "in png_set_compression_strategy");  in png_set_compression_strategy()
1474    png_debug(1, "in png_set_compression_method");  in png_set_compression_method()
1497    png_debug(1, "in png_set_write_user_transform_fn");  in png_set_write_user_transform_fn()