It's a double-buffer, because there's room for the "in-progress" buffer used for the updates, as well as the buffer that holds the final image from the last frame, that's being read by the monitor.

这是一个双缓冲，因为有“进步”的缓冲区用于更新的房间，以及拥有最终的图像从上一帧缓冲，这是由监视器读。

youdao

It's a double-buffer, because there's room for the "in-progress" buffer used for the updates, as well as the buffer that holds the final image from the last frame, that's being read by the monitor.

这是一个双缓冲，因为有“进步”的缓冲区用于更新的房间，以及拥有最终的图像从上一帧缓冲，这是由监视器读。

youdao