安卓：GLES20：调用未实现的OpenGL ES API

问题描述

我收到一个叫未实现的OpenGL ES API的错误，试图在GLES20样品，由developer.android.com提供时。我修改了样本，但。究其原因，是因为我在GLSurfaceView.BaseConfigChooser.chooseconfig一个IllegalArgumentException，所以我代替 mGLSurfaceView.setEGLContextClientVersion（2）;

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 becauseI got an IllegalArgumentException in GLSurfaceView.BaseConfigChooser.chooseconfig, so i replacedmGLSurfaceView.setEGLContextClientVersion( 2 );

新OnCreateMethod：

The new OnCreateMethod:

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 );
}

时，会出现叫未实现的OpenGL ES API的错误，例如在 GLES20.glCreateShader; 或 GLES20.glShaderSource 。

The "Called unimplemented OpenGL ES API" error occurs for example atGLES20.glCreateShader; or GLES20.glShaderSource.

我想，也许检查版本，所以我打电话 gl.glGetString（GLES20.GL_VERSION）; 的公共无效onSurfaceCreated（GL10 GL，EGLConfig配置）。glGetString退换的OpenGL ES-CM 1.0。 OnSurfaceCreated被称为选择配置和创建上下文后，所以我真的不明白，为什么glGetString回报的OpenGL ES-CM 1.0。

I thought, maybe to check the version, so I calledgl.glGetString( GLES20.GL_VERSION ); inpublic void onSurfaceCreated( GL10 gl, EGLConfig config ).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".

我使用的是Android 2.2的API，并试图将样品上Android 2.2的虚拟设备，并在HTC野火，采用Android 2.2.1。

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.

我AP preciate任何帮助

I appreciate any help

推荐答案

您需要启用OpenGL ES 2.0的在你的Andr​​oid应用程序。

You need to enable OpenGL ES 2.0 in your Android app.

首先，在你的Andr​​oidManifest.xml，确保您具备以下条件：

First, in your AndroidManifest.xml, ensure you have the following:

<uses-feature android:glEsVersion="0x00020000"></uses-feature>
<uses-sdk android:targetSdkVersion="8" android:minSdkVersion="8"></uses-sdk>

二，创建GLSurfaceView的子类是这样的：

Second, create a subclass of GLSurfaceView like this:

public class CustomView extends GLSurfaceView {
    final CustomRenderer renderer;
    CustomView(Context context) {
        super(context);
        setEGLContextClientVersion(2); // This is the important line
        renderer = new CustomRenderer();
        setRenderer(renderer);
    }
}

这篇关于安卓：GLES20：调用未实现的OpenGL ES API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！