android获得系统GPU参数 gl.glGetString

        通过文档的查找，以及源码的剖析，Android的GPU信息需要通过OpenGL来获取，android framework层提供GL10来获取相应的参数，而GL10要在使用自定义的View时才可以获得，下面是获得GPU信息的例子：

1.实现Render类

class DemoRenderer  implements GLSurfaceView.Renderer {

	public void onSurfaceCreated(GL10 gl, EGLConfig config)
	{
		Log.d("SystemInfo", "GL_RENDERER = " +gl.glGetString(GL10.GL_RENDERER)); 
		Log.d("SystemInfo", "GL_VENDOR = " + gl.glGetString(GL10.GL_VENDOR)); 
		Log.d("SystemInfo", "GL_VERSION = " + gl.glGetString(GL10.GL_VERSION)); 
		Log.i("SystemInfo", "GL_EXTENSIONS = " + gl.glGetString(GL10.GL_EXTENSIONS)); 
	}


	@Override
	public void onDrawFrame(GL10 arg0) {
		// TODO Auto-generated method stub

	}


	@Override
	public void onSurfaceChanged(GL10 arg0, int arg1, int arg2) {
		// TODO Auto-generated method stub

	}

}

2.实现GLSurfaceView

class DemoGLSurfaceView extends GLSurfaceView {

	DemoRenderer mRenderer;
	public DemoGLSurfaceView(Context context) {
		super(context);
		setEGLConfigChooser(8, 8, 8, 8, 0, 0);
		mRenderer = new DemoRenderer();
		setRenderer(mRenderer);
	}
}

3.在Activity中 new 一个 DemoGLSurfaceView 对象

4.设置这个View对象

public class Demo extends Activity {
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		GLSurfaceView glView = new DemoGLSurfaceView(this);
		this.setContentView(glView);
	}
}

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