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我正在越狱设备上开发一个工具。我通过 IOSurfaceGetBaseAddress 获得了一个帧缓冲区,它提供了一个镜像数据。所以我想把图像镜像回来。逐个像素地反转它太慢了,所以我想用OpenGL ES来镜像它。有人有这种示例代码吗?
您可以渲染纹理的背面。然后,像素在水平方向上反转。