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()
317    png_debug(1, "in png_write_end");  in png_write_end()
392       png_debug(5, "writing extra chunks");  in png_write_end()
434    png_debug(1, "in png_convert_from_struct_tm");  in png_convert_from_struct_tm()
449    png_debug(1, "in png_convert_from_time_t");  in png_convert_from_time_t()
484    png_debug(1, "in png_create_write_struct");  in png_create_write_struct_2()
690    png_debug(1, "in png_write_init_3");  in png_write_init_3()
743    png_debug(1, "in png_write_rows");  in png_write_rows()
768    png_debug(1, "in png_write_image");  in png_write_image()
975    png_debug(1, "in png_set_flush");  in png_set_flush()
988    png_debug(1, "in png_write_flush");  in png_write_flush()
1049    png_debug(1, "in png_destroy_write_struct");  in png_destroy_write_struct()
1124    png_debug(1, "in png_write_destroy");  in png_write_destroy()
1182    png_debug(1, "in png_set_filter");  in png_set_filter()
1306    png_debug(1, "in png_set_filter_heuristics");  in png_set_filter_heuristics()
1421    png_debug(1, "in png_set_compression_level");  in png_set_compression_level()
1432    png_debug(1, "in png_set_compression_mem_level");  in png_set_compression_mem_level()
1443    png_debug(1, "in png_set_compression_strategy");  in png_set_compression_strategy()
1475    png_debug(1, "in png_set_compression_method");  in png_set_compression_method()
1498    png_debug(1, "in png_set_write_user_transform_fn");  in png_set_write_user_transform_fn()