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POAndroid: GLES20: Called unimplemented OpenGL ES API
 

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    <p>I am getting a "Called unimplemented OpenGL ES API" error, when trying the GLES20 Sample, provided by developer.android.com. I modified the sample, though. The reason was because I got an IllegalArgumentException in GLSurfaceView.BaseConfigChooser.chooseconfig, so i replaced <code>mGLSurfaceView.setEGLContextClientVersion( 2 );</code></p> <p>The new OnCreateMethod:</p> <pre><code>protected void onCreate( Bundle savedInstanceState ) { super.onCreate( savedInstanceState ); mGLSurfaceView = new GLSurfaceView( this ); mGLSurfaceView.setEGLConfigChooser( new EGLConfigChooser() { @Override public EGLConfig chooseConfig( EGL10 egl, EGLDisplay display ) { EGLConfig[] configs = new EGLConfig[1]; int[] num_config = new int[1]; boolean check = false; int[] configSpec = { EGL10.EGL_DEPTH_SIZE, 16, EGL10.EGL_NONE }; check = egl.eglInitialize( display, new int[] { 2, 0 } ); if ( !check ) return null; check = false; check = egl.eglChooseConfig( display, configSpec, configs, 1, num_config ); if ( !check ) return null; return configs[0]; } } ); mGLSurfaceView.setEGLContextFactory( new EGLContextFactory() { @Override public void destroyContext( EGL10 egl, EGLDisplay display, EGLContext context ) { egl.eglDestroyContext( display, context ); } @Override public EGLContext createContext( EGL10 egl, EGLDisplay display, EGLConfig eglConfig ) { int[] attrib_list = new int[]{EGL10.EGL_VERSION, 2, EGL10.EGL_NONE}; EGLContext context = egl.eglCreateContext( display, eglConfig, EGL10.EGL_NO_CONTEXT, attrib_list ); return context; } }); mGLSurfaceView.setRenderer( new GLES20TriangleRenderer( this ) ); setContentView( mGLSurfaceView ); } </code></pre> <p>The "Called unimplemented OpenGL ES API" error occurs for example at <code>GLES20.glCreateShader;</code> or <code>GLES20.glShaderSource</code>. </p> <p>I thought, maybe to check the version, so I called <code>gl.glGetString( GLES20.GL_VERSION );</code> in <code>public void onSurfaceCreated( GL10 gl, EGLConfig config )</code>. glGetString returned "OpenGL ES-CM 1.0". OnSurfaceCreated is called after choosing the config and creating the context, so I really do not understand, why glGetString returns "OpenGL ES-CM 1.0".</p> <p>I am using Android 2.2 API and tried the sample on a Android 2.2 Virtual device and on a HTC Wildfire, with Android 2.2.1. </p> <p>I appreciate any help</p>
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    1. COI'm not too experienced with GL ES 1.1/2.0 but it's better to very much aware emulator does not implement them very well AFAIK. And you can end up with code that works on device but not on emulator.
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