PNG_SKIP_MODE      76 3rdparty/libpng/pngpread.c    if (png_ptr != NULL && png_ptr->process_mode == PNG_SKIP_MODE &&
PNG_SKIP_MODE     131 3rdparty/libpng/pngpread.c       case PNG_SKIP_MODE:
PNG_SKIP_MODE     570 3rdparty/libpng/pngpread.c    png_ptr->process_mode = PNG_SKIP_MODE;