Linux SDL库，封装了声音、键盘、鼠标、显卡等设备。-This is the Simple DirectMedia Layer, a general API that provides low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D framebuffer across multiple platforms

在X环境下面显示rgba原始格式的图片数据 linux环境下从framebuffer设备节点读取到的数据是rgba原始格式的，使用这个程序可以在X环境下显示图片 cat /dev/fb0 >pic.rgba ./show-rgba pic.rgba <width> <height>-Show picture using X api