opengl 10bit 检测显卡是否支持10bit

代码说明：

应用背景 想直接回显10bit数据，在nv网站上下载的，编译运行通过，有一定的参考意义。 README for Check30bit - To Run, type  Check30bit This will print out a listing of all attached displays and open a window on each display showing a teapot. If a display is 30-bit capable, then the window opened on that display will use a 30-bit pixel format. When moving or resizing the window between the displays the event handler determines if the window is spanning a 30-bit color compatible display and reports it. 关键技术Check30bit opengl nvidia  并检测显卡是否支持10bit，不支持的话就用24bit。