577    if (png_ptr->skip_length && png_ptr->current_buffer_size)  in png_push_crc_finish()
581       if (png_ptr->skip_length < (png_uint_32)png_ptr->current_buffer_size)  in png_push_crc_finish()
584          save_size = png_ptr->current_buffer_size;  in png_push_crc_finish()
590       png_ptr->current_buffer_size -= save_size;  in png_push_crc_finish()
631    if (length && png_ptr->current_buffer_size)  in png_push_fill_buffer()
635       if (length < png_ptr->current_buffer_size)  in png_push_fill_buffer()
639          save_size = png_ptr->current_buffer_size;  in png_push_fill_buffer()
643       png_ptr->current_buffer_size -= save_size;  in png_push_fill_buffer()
667    if (png_ptr->save_buffer_size + png_ptr->current_buffer_size >  in png_push_save_buffer()
674          (png_ptr->current_buffer_size + 256))  in png_push_save_buffer()
679       new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;  in png_push_save_buffer()
692    if (png_ptr->current_buffer_size)  in png_push_save_buffer()
695          png_ptr->current_buffer_ptr, png_ptr->current_buffer_size);  in png_push_save_buffer()
696       png_ptr->save_buffer_size += png_ptr->current_buffer_size;  in png_push_save_buffer()
697       png_ptr->current_buffer_size = 0;  in png_push_save_buffer()
708    png_ptr->current_buffer_size = buffer_length;  in png_push_restore_buffer()
769    if (png_ptr->idat_size && png_ptr->current_buffer_size)  in png_push_read_IDAT()
773       if (png_ptr->idat_size < (png_uint_32)png_ptr->current_buffer_size)  in png_push_read_IDAT()
782          save_size = png_ptr->current_buffer_size;  in png_push_read_IDAT()
790       png_ptr->current_buffer_size -= save_size;  in png_push_read_IDAT()