OpenGL ES的不工作：没有当前上下文 [英] OPENGL ES not working : no Current context

问题描述

我试过的程序，如图本书的OpenGL ES2为Android，但它不工作！

I tried the program as shown in book OpenGL ES2 for Android, but it's not working!!

我Odroid E具有测试，三星S3，三星Y，三星明星！

I have tested in Odroid E, samsung s3, samsung y, samsung star!!

the gl version suported returns 2, but i get
11-22 15:09:45.804: E/oGl-es v(9047): 2.0:131072
11-22 15:09:45.804: E/libEGL(9047): call to OpenGL ES API with no current context     (logged once per thread)
11-22 15:09:45.804: E/unable to(9047): createShader
11-22 15:09:45.804: E/libEGL(9047): call to OpenGL ES API with no current context (logged once per thread)
11-22 15:09:45.804: E/unable to(9047): createShader
11-22 15:09:45.804: E/libEGL(9047): call to OpenGL ES API with no current context (logged once per thread)
11-22 15:09:45.804: E/Error creating(9047): GL programObject
11-22 15:09:45.812: E/render(9047): set
11-22 15:09:46.062: E/Results of validating program:(9047): 0
11-22 15:09:46.062: E/Results of validating program:(9047): Log:

下面是我的code

Below are my code

public class Main_OGLT1 extends Activity {

    MySurface mGLSurfaceView;
private boolean renderSet;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mGLSurfaceView = new MySurface(this);//(this); //instantiation

        ActivityManager actMan = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        ConfigurationInfo mConfigInfo = actMan.getDeviceConfigurationInfo();
        boolean isES2Compat = (mConfigInfo.reqGlEsVersion >= 0x20000);
        Log.e("oGl-es v",mConfigInfo.getGlEsVersion()+":"+ mConfigInfo.reqGlEsVersion);
        if(isES2Compat){


            renderSet = true;
            Log.e("render","set");

        }


    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main__oglt1, menu);
        return true;
    }

    @Override
    protected void onResume()
    {
        // The activity must call the GL surface view's onResume() on activity onResume().
        super.onResume();
        mGLSurfaceView.onResume();
    }

    @Override
    protected void onPause()
    {
        // The activity must call the GL surface view's onPause() on activity onPause().
        super.onPause();
        mGLSurfaceView.onPause();
    }

}

类MySurface：

The class MySurface :

    public class MySurface extends GLSurfaceView{

    public MySurface(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        setEGLContextClientVersion(2);
        setRenderer(new MyTestRenderer(getContext()));
    }

 }

推荐答案

问题是与glSurfaceView，因为它不OpenGL的线程上运行。该glSurfaceView应该是主要的Andr​​oid的线程上。

The problem is with glSurfaceView, as it does not run on the OpenGL thread. The glSurfaceView should be on the main android thread.

这里你可以找到关于它的更多信息：

Here you find additional info about it:

的OpenGL ES API没有当前上下文

OpenGL ES 2.0的上下文中的Andr​​oid

希望这有助于。

这篇关于OpenGL ES的不工作：没有当前上下文的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！