问题描述

Android OpenGL es 下面这段代码在模拟器2.2上可以正常 在真机上都是黑屏

测试环境：平板Android 2.3.1 和 mtk6592 cpu Android4.2.2
mtk6592 cpu Android4.2.2 还报错
09-20 15:00:30.264: E/linker(13810): load_library(linker.cpp:761): library ""libmaliinstr.so"" not found
09-20 15:00:30.265: E/(13810): appName=cn.it.opengl acAppName=com.android.cts.openglperf
09-20 15:00:30.265: E/(13810):
009-20 15:00:30.266: E/(13810): appName=cn.it.opengl acAppName=com.android.browser09-20 15:00:30.266: E/(13810): 0

public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    view = new MyGLSurfaceView(this);    this.setContentView(view);    //渲染模式:持续渲染(默认)|命令渲染    view.setRenderer(new MyRendererCirclePoint());     //设置脏渲染(命令渲染)    view.setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);    //请求渲染renderer.onDrawFrame();

// view.requestRender();
}

class MyGLSurfaceView extends GLSurfaceView{    public MyGLSurfaceView(Context context) {        super(context);    }}

public class MyRendererCirclePoint implements Renderer {

private float ratio;/** * 表层创建时调用该方法 */public void onSurfaceCreated(GL10 gl EGLConfig config) {    //清屏色(黑色)    gl.glClearColor(0 0 0 1);    //颜色缓冲和顶点缓冲区    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);    gl.glEnableClientState(GL10.GL_COLOR_ARRAY);}/** * 表层大小改变时调用该方法 */public void onSurfaceChanged(GL10 gl int width int height) {    gl.glViewport(0 0 width height);    ratio = (float)width / height;    //投影矩阵    gl.glMatrixMode(GL10.GL_PROJECTION);    gl.glLoadIdentity();//重置矩阵    gl.glFrustumf(-ratio ratio -1 1 3 100);//设置平截头体}/** * 绘图 */public void onDrawFrame(GL10 gl) {    //清除颜色缓冲去    gl.glClear(GL10.GL_COLOR_BUFFER_BIT);    gl.glMatrixMode(GL10.GL_MODELVIEW);//设置模型视图矩阵    gl.glLoadIdentity();    GLU.gluLookAt(gl 0 0 5 0 0 0 0 1 0);//架设相机位置    /**     * vertextList顶点集合     */    float r = 0.6f ;//半径    List<Float> vertextList = new ArrayList<Float>();    float x = 0  y = 0  z = 0.8f ;    for(float angle = 0 ; angle <= Math.PI * 6 ; angle = (float) (angle + (Math.PI / 20))){        x = (float) (r * Math.cos(angle));        y = (float) (r * Math.sin(angle));        z = z - 0.01f ;        vertextList.add(x);        vertextList.add(y);        vertextList.add(z);    }    ByteBuffer vbb = ByteBuffer.allocateDirect(vertextList.size() * 4);    vbb.order(ByteOrder.nativeOrder());    FloatBuffer fbb = FloatBuffer.allocate(vertextList.size());    for(Float f : vertextList){        fbb.put(f);    }    fbb.position(0);    vbb.position(0);    //设置蓝色    gl.glColor4f(0 0 1 1);    gl.glPointSize(5f);    gl.glRotatef(-90 1 0 0);    gl.glVertexPointer(3 GL10.GL_FLOAT 0 vbb);    gl.glDrawArrays(GL10.GL_POINTS 0 vertextList.size() / 3);}

}