Java EGL14.EGL_OPENGL_ES2_BIT属性代码示例

private int[] filterConfigSpec(int[] configSpec) {
    if (mEGLContextClientVersion != 2 && mEGLContextClientVersion != 3) {
        return configSpec;
    }
    /* We know none of the subclasses define EGL_RENDERABLE_TYPE.
     * And we know the configSpec is well formed.
     */
    int len = configSpec.length;
    int[] newConfigSpec = new int[len + 2];
    System.arraycopy(configSpec, 0, newConfigSpec, 0, len - 1);
    newConfigSpec[len - 1] = EGL10.EGL_RENDERABLE_TYPE;
    if (mEGLContextClientVersion == 2) {
        newConfigSpec[len] = EGL14.EGL_OPENGL_ES2_BIT;  /* EGL_OPENGL_ES2_BIT */
    } else {
        newConfigSpec[len] = EGLExt.EGL_OPENGL_ES3_BIT_KHR; /* EGL_OPENGL_ES3_BIT_KHR */
    }
    newConfigSpec[len + 1] = EGL10.EGL_NONE;
    return newConfigSpec;
}
 

@SuppressWarnings("unused")
private EGLConfig getConfig(final boolean with_depth_buffer, final boolean isRecordable) {
    final int[] attribList = {
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_ALPHA_SIZE, 8,
            EGL14.EGL_NONE, EGL14.EGL_NONE,	//EGL14.EGL_STENCIL_SIZE, 8,
            EGL14.EGL_NONE, EGL14.EGL_NONE,	//EGL_RECORDABLE_ANDROID, 1,	// this flag need to recording of MediaCodec
            EGL14.EGL_NONE,	EGL14.EGL_NONE,	//	with_depth_buffer ? EGL14.EGL_DEPTH_SIZE : EGL14.EGL_NONE,
								// with_depth_buffer ? 16 : 0,
            EGL14.EGL_NONE
    };
    int offset = 10;
    if (false) {				// ステンシルバッファ(常時未使用)
    	attribList[offset++] = EGL14.EGL_STENCIL_SIZE;
    	attribList[offset++] = 8;
    }
    if (with_depth_buffer) {	// デプスバッファ
    	attribList[offset++] = EGL14.EGL_DEPTH_SIZE;
    	attribList[offset++] = 16;
    }
    if (isRecordable && (Build.VERSION.SDK_INT >= 18)) {// MediaCodecの入力用Surfaceの場合
    	attribList[offset++] = EGL_RECORDABLE_ANDROID;
    	attribList[offset++] = 1;
    }
    for (int i = attribList.length - 1; i >= offset; i--) {
    	attribList[i] = EGL14.EGL_NONE;
    }
    final EGLConfig[] configs = new EGLConfig[1];
    final int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEglDisplay, attribList, 0, configs, 0, configs.length, numConfigs, 0)) {
    	// XXX it will be better to fallback to RGB565
        Log.w(TAG, "unable to find RGBA8888 / " + " EGLConfig");
        return null;
    }
    return configs[0];
}
 

/**
 * Finds a suitable EGLConfig.
 *
 * @param flags Bit flags from constructor.
 * @param version Must be 2 or 3.
 */
private EGLConfig getConfig(int flags, int version) {
    int renderableType = EGL14.EGL_OPENGL_ES2_BIT;
    if (version >= 3) {
        renderableType |= EGLExt.EGL_OPENGL_ES3_BIT_KHR;
    }

    // The actual surface is generally RGBA or RGBX, so situationally omitting alpha
    // doesn't really help.  It can also lead to a huge performance hit on glReadPixels()
    // when reading into a GL_RGBA buffer.
    int[] attribList = {
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_ALPHA_SIZE, 8,
            //EGL14.EGL_DEPTH_SIZE, 16,
            //EGL14.EGL_STENCIL_SIZE, 8,
            EGL14.EGL_RENDERABLE_TYPE, renderableType,
            EGL14.EGL_NONE, 0,      // placeholder for recordable [@-3]
            EGL14.EGL_NONE
    };
    if ((flags & FLAG_RECORDABLE) != 0) {
        attribList[attribList.length - 3] = EGL_RECORDABLE_ANDROID;
        attribList[attribList.length - 2] = 1;
    }
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
            numConfigs, 0)) {
        Log.w(TAG, "unable to find RGB8888 / " + version + " EGLConfig");
        return null;
    }
    return configs[0];
}
 

/**
 * Finds a suitable EGLConfig.
 *
 * @param flags   Bit flags from constructor.
 * @param version Must be 2 or 3.
 */
private EGLConfig getConfig(int flags, int version) {
    int renderableType = EGL14.EGL_OPENGL_ES2_BIT;
    if (version >= 3) {
        renderableType |= EGLExt.EGL_OPENGL_ES3_BIT_KHR;
    }

    // The actual surface is generally RGBA or RGBX, so situationally omitting alpha
    // doesn't really help.  It can also lead to a huge performance hit on glReadPixels()
    // when reading into a GL_RGBA buffer.
    int[] attribList = {
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_ALPHA_SIZE, 8,
            //EGL14.EGL_DEPTH_SIZE, 16,
            //EGL14.EGL_STENCIL_SIZE, 8,
            EGL14.EGL_RENDERABLE_TYPE, renderableType,
            EGL14.EGL_NONE, 0,      // placeholder for recordable [@-3]
            EGL14.EGL_NONE
    };
    if ((flags & FLAG_RECORDABLE) != 0) {
        attribList[attribList.length - 3] = EGL_RECORDABLE_ANDROID;
        attribList[attribList.length - 2] = 1;
    }
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
            numConfigs, 0)) {
        Log.w(TAG, "unable to find RGB8888 / " + version + " EGLConfig");
        return null;
    }
    return configs[0];
}
 

/**
 * Finds a suitable EGLConfig.
 *
 * @param flags Bit flags from constructor.
 * @param version Must be 2 or 3.
 */
private EGLConfig getConfig(int flags, int version) {
    int renderableType = EGL14.EGL_OPENGL_ES2_BIT;
    if (version >= 3) {
        renderableType |= EGLExt.EGL_OPENGL_ES3_BIT_KHR;
    }

    // The actual surface is generally RGBA or RGBX, so situationally omitting alpha
    // doesn't really help.  It can also lead to a huge performance hit on glReadPixels()
    // when reading into a GL_RGBA buffer.
    int[] attribList = {
            EGL14.EGL_RED_SIZE, 8, EGL14.EGL_GREEN_SIZE, 8, EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_ALPHA_SIZE, 8,
            //EGL14.EGL_DEPTH_SIZE, 16,
            //EGL14.EGL_STENCIL_SIZE, 8,
            EGL14.EGL_RENDERABLE_TYPE, renderableType, EGL14.EGL_NONE, 0,
            // placeholder for recordable [@-3]
            EGL14.EGL_NONE
    };
    if ((flags & FLAG_RECORDABLE) != 0) {
        attribList[attribList.length - 3] = EGL_RECORDABLE_ANDROID;
        attribList[attribList.length - 2] = 1;
    }
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
            numConfigs, 0)) {
        Log.w(TAG, "unable to find RGB8888 / " + version + " EGLConfig");
        return null;
    }
    return configs[0];
}
 

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private static int getMaxTextureEgl14() {
    EGLDisplay dpy = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
    int[] vers = new int[2];
    EGL14.eglInitialize(dpy, vers, 0, vers, 1);

    int[] configAttr = {
            EGL14.EGL_COLOR_BUFFER_TYPE, EGL14.EGL_RGB_BUFFER,
            EGL14.EGL_LEVEL, 0,
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL14.EGL_SURFACE_TYPE, EGL14.EGL_PBUFFER_BIT,
            EGL14.EGL_NONE
    };
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfig = new int[1];
    EGL14.eglChooseConfig(dpy, configAttr, 0,
            configs, 0, 1, numConfig, 0);
    if (numConfig[0] == 0) {
        return 0;
    }
    EGLConfig config = configs[0];

    int[] surfAttr = {
            EGL14.EGL_WIDTH, 64,
            EGL14.EGL_HEIGHT, 64,
            EGL14.EGL_NONE
    };
    EGLSurface surf = EGL14.eglCreatePbufferSurface(dpy, config, surfAttr, 0);

    int[] ctxAttrib = {
            EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
            EGL14.EGL_NONE
    };
    EGLContext ctx = EGL14.eglCreateContext(dpy, config, EGL14.EGL_NO_CONTEXT, ctxAttrib, 0);

    EGL14.eglMakeCurrent(dpy, surf, surf, ctx);

    int[] maxSize = new int[1];
    GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, maxSize, 0);

    EGL14.eglMakeCurrent(dpy, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE,
            EGL14.EGL_NO_CONTEXT);
    EGL14.eglDestroySurface(dpy, surf);
    EGL14.eglDestroyContext(dpy, ctx);
    EGL14.eglTerminate(dpy);

    return maxSize[0];
}
 

private EGLConfig getConfig(final boolean withDepthBuffer) {
    final int[] attributes = {
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_ALPHA_SIZE, 8,
            EGL14.EGL_NONE, EGL14.EGL_NONE, // EGL_DEPTH_SIZE占位，下面再进行设置
            EGL14.EGL_NONE, EGL14.EGL_NONE, // EGL_RECORDABLE_ANDROID占位，下面再进行设置
            EGL14.EGL_NONE
    };
    int offset = 10;
    if (withDepthBuffer) {
        attributes[offset++] = EGL14.EGL_DEPTH_SIZE;
        attributes[offset++] = 16;
    }
    if (Build.VERSION.SDK_INT >= 18) {
        attributes[offset++] = EGL_RECORDABLE_ANDROID;
        attributes[offset++] = 1;
    }
    for (int i = attributes.length - 1; i >= offset; i--) {
        attributes[i] = EGL14.EGL_NONE;
    }
    final EGLConfig[] configs = new EGLConfig[1];
    final int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEglDisplay, attributes, 0,
            configs, 0, configs.length, numConfigs, 0)) {
        return null;
    }
    return configs[0];
}
 

private void eglSetup() {
    mEGLDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
    if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
        throw new RuntimeException("unable to get EGL14 display");
    }
    int[] version = new int[2];
    if (!EGL14.eglInitialize(mEGLDisplay, version, 0, version, 1)) {
        mEGLDisplay = null;
        throw new RuntimeException("unable to initialize EGL14");
    }

    int[] attribList = {
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL_RECORDABLE_ANDROID, 1,
            EGL14.EGL_NONE
    };
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
            numConfigs, 0)) {
        throw new RuntimeException("unable to find RGB888+recordable ES2 EGL config");
    }

    int[] attrib_list = {
            EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
            EGL14.EGL_NONE
    };
    mEGLContext = EGL14.eglCreateContext(mEGLDisplay, configs[0], EGL14.eglGetCurrentContext(),
            attrib_list, 0);
    AndroidUntil.checkEglError("eglCreateContext");
    if (mEGLContext == null) {
        throw new RuntimeException("null context");
    }

    int[] surfaceAttribs = {
            EGL14.EGL_NONE
    };
    mEGLSurface = EGL14.eglCreateWindowSurface(mEGLDisplay, configs[0], mSurface,
            surfaceAttribs, 0);
    AndroidUntil.checkEglError("eglCreateWindowSurface");
    if (mEGLSurface == null) {
        throw new RuntimeException("surface was null");
    }
}
 

private void eglSetup() {
	mEGLDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
	if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
		throw new RuntimeException("unable to get EGL14 display");
	}
	int[] version = new int[2];
	if (!EGL14.eglInitialize(mEGLDisplay, version, 0, version, 1)) {
		mEGLDisplay = null;
		throw new RuntimeException("unable to initialize EGL14");
	}

	int[] attribList = {
			EGL14.EGL_RED_SIZE, 8,
			EGL14.EGL_GREEN_SIZE, 8,
			EGL14.EGL_BLUE_SIZE, 8,
			EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
			EGL_RECORDABLE_ANDROID, 1,
			EGL14.EGL_NONE
	};
	EGLConfig[] configs = new EGLConfig[1];
	int[] numConfigs = new int[1];
	if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
			numConfigs, 0)) {
		throw new RuntimeException("unable to find RGB888+recordable ES2 EGL config");
	}

	int[] attrib_list = {
			EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
			EGL14.EGL_NONE
	};
	mEGLContext = EGL14.eglCreateContext(mEGLDisplay, configs[0], EGL14.eglGetCurrentContext(),
			attrib_list, 0);
	OpenGlUtils.checkGlError("eglCreateContext");
	if (mEGLContext == null) {
		throw new RuntimeException("null context");
	}

	int[] surfaceAttribs = {
			EGL14.EGL_NONE
	};

	try{
		mEGLSurface = EGL14.eglCreateWindowSurface(mEGLDisplay, configs[0], mSurface, surfaceAttribs, 0);
	}
	catch(Exception e){
		e.printStackTrace();
	}


	OpenGlUtils.checkGlError("eglCreateWindowSurface");
	if (mEGLSurface == null) {
		throw new RuntimeException("surface was null");
	}
}
 

/**
 * Prepares EGL.  We want a GLES 2.0 context and a surface that supports pbuffer.
 */
private void eglSetup(int width, int height) {
    mEGLDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
    if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
        throw new RuntimeException("unable to get EGL14 display");
    }
    int[] version = new int[2];
    if (!EGL14.eglInitialize(mEGLDisplay, version, 0, version, 1)) {
        mEGLDisplay = null;
        throw new RuntimeException("unable to initialize EGL14");
    }
    // Configure EGL for pbuffer and OpenGL ES 2.0.  We want enough RGB bits
    // to be able to tell if the frame is reasonable.
    int[] attribList = {
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL14.EGL_SURFACE_TYPE, EGL14.EGL_PBUFFER_BIT,
            EGL14.EGL_NONE
    };
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
            numConfigs, 0)) {
        throw new RuntimeException("unable to find RGB888+recordable ES2 EGL config");
    }
    // Configure context for OpenGL ES 2.0.
    int[] attrib_list = {
            EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
            EGL14.EGL_NONE
    };
    mEGLContext = EGL14.eglCreateContext(mEGLDisplay, configs[0], EGL14.EGL_NO_CONTEXT,
            attrib_list, 0);
    checkEglError("eglCreateContext");
    if (mEGLContext == null) {
        throw new RuntimeException("null context");
    }
    // Create a pbuffer surface.  By using this for output, we can use glReadPixels
    // to test values in the output.
    int[] surfaceAttribs = {
            EGL14.EGL_WIDTH, width,
            EGL14.EGL_HEIGHT, height,
            EGL14.EGL_NONE
    };
    mEGLSurface = EGL14.eglCreatePbufferSurface(mEGLDisplay, configs[0], surfaceAttribs, 0);
    checkEglError("eglCreatePbufferSurface");
    if (mEGLSurface == null) {
        throw new RuntimeException("surface was null");
    }
}
 

/**
 * Prepares EGL.  We want a GLES 2.0 context and a surface that supports recording.
 */
private void eglSetup() {
    mEGLDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
    if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
        throw new RuntimeException("unable to get EGL14 display");
    }
    int[] version = new int[2];
    if (!EGL14.eglInitialize(mEGLDisplay, version, 0, version, 1)) {
        mEGLDisplay = null;
        throw new RuntimeException("unable to initialize EGL14");
    }
    // Configure EGL for recordable and OpenGL ES 2.0.  We want enough RGB bits
    // to minimize artifacts from possible YUV conversion.
    int[] attribList = {
            EGL14.EGL_RED_SIZE, 8,
            EGL14.EGL_GREEN_SIZE, 8,
            EGL14.EGL_BLUE_SIZE, 8,
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL_RECORDABLE_ANDROID, 1,
            EGL14.EGL_NONE
    };
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!EGL14.eglChooseConfig(mEGLDisplay, attribList, 0, configs, 0, configs.length,
            numConfigs, 0)) {
        throw new RuntimeException("unable to find RGB888+recordable ES2 EGL config");
    }
    // Configure context for OpenGL ES 2.0.
    int[] attrib_list = {
            EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
            EGL14.EGL_NONE
    };
    mEGLContext = EGL14.eglCreateContext(mEGLDisplay, configs[0], EGL14.EGL_NO_CONTEXT,
            attrib_list, 0);
    checkEglError("eglCreateContext");
    if (mEGLContext == null) {
        throw new RuntimeException("null context");
    }
    // Create a window surface, and attach it to the Surface we received.
    int[] surfaceAttribs = {
            EGL14.EGL_NONE
    };
    mEGLSurface = EGL14.eglCreateWindowSurface(mEGLDisplay, configs[0], mSurface,
            surfaceAttribs, 0);
    checkEglError("eglCreateWindowSurface");
    if (mEGLSurface == null) {
        throw new RuntimeException("surface was null");
    }
}
 

public GLContext(EGLContext eglContext) {
        if (this.mEGLDisplay != EGL14.EGL_NO_DISPLAY) {
            throw new RuntimeException("EGL already set up");
        }

        if (eglContext == null) {
            eglContext = EGL14.EGL_NO_CONTEXT;
        }

        mEGLDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
        if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
            throw new RuntimeException("unable to get EGL14 display");
        }

        int[] version = new int[2];
        if (!EGL14.eglInitialize(mEGLDisplay, version, 0, version, 1)) {
            mEGLDisplay = null;
            throw new RuntimeException("unable to initialize EGL14");
        }

        int[] configAttributes = {
                EGL14.EGL_RED_SIZE, 8,
                EGL14.EGL_GREEN_SIZE, 8,
                EGL14.EGL_BLUE_SIZE, 8,
                EGL14.EGL_ALPHA_SIZE, 8,
//                EGL14.EGL_DEPTH_SIZE, 16,
//                EGL14.EGL_STENCIL_SIZE, 8,
                EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
                EGL_RECORDABLE_ANDROID, 1,
                EGL14.EGL_NONE
        };


        EGLConfig[] elgConfigs = new EGLConfig[1];
        int[] numConfigs = new int[1];
        if (!EGL14.eglChooseConfig(mEGLDisplay, configAttributes, 0, elgConfigs, 0, elgConfigs.length, numConfigs, 0)) {
            throw new RuntimeException("Unable to find a suitable EGLConfig");
        }
        mEGLConfig = elgConfigs[0];

        int[] contextAttributes = {
                EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
                EGL14.EGL_NONE
        };

        mEGLContext = EGL14.eglCreateContext(mEGLDisplay, mEGLConfig, eglContext, contextAttributes, 0);
    }
 

/**
 * Prepares EGL.  We want a GLES 2.0 context and a surface that supports recording.
 */
private void eglSetup() {
  eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
  if (eglDisplay == EGL14.EGL_NO_DISPLAY) {
    throw new RuntimeException("unable to get EGL14 display");
  }
  int[] version = new int[2];
  if (!EGL14.eglInitialize(eglDisplay, version, 0, version, 1)) {
    throw new RuntimeException("unable to initialize EGL14");
  }

  // Configure EGL for recording and OpenGL ES 2.0.
  int[] attribList;
  if (eglSharedContext == null) {
    attribList = new int[] {
        EGL14.EGL_RED_SIZE, 8, EGL14.EGL_GREEN_SIZE, 8, EGL14.EGL_BLUE_SIZE, 8,
        EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT, EGL14.EGL_NONE
    };
  } else {
    attribList = new int[] {
        EGL14.EGL_RED_SIZE, 8, EGL14.EGL_GREEN_SIZE, 8, EGL14.EGL_BLUE_SIZE, 8,
        EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT, EGL_RECORDABLE_ANDROID, 1,
        EGL14.EGL_NONE
    };
  }
  EGLConfig[] configs = new EGLConfig[1];
  int[] numConfigs = new int[1];
  EGL14.eglChooseConfig(eglDisplay, attribList, 0, configs, 0, configs.length, numConfigs, 0);
  GlUtil.checkEglError("eglCreateContext RGB888+recordable ES2");

  // Configure context for OpenGL ES 2.0.
  int[] attrib_list = {
      EGL14.EGL_CONTEXT_CLIENT_VERSION, 2, EGL14.EGL_NONE
  };

  if (eglSharedContext == null) {
    eglContext =
        EGL14.eglCreateContext(eglDisplay, configs[0], EGL14.EGL_NO_CONTEXT, attrib_list, 0);
  } else {
    eglContext = EGL14.eglCreateContext(eglDisplay, configs[0], eglSharedContext, attrib_list, 0);
  }
  GlUtil.checkEglError("eglCreateContext");

  // Create a window surface, and attach it to the Surface we received.
  int[] surfaceAttribs = {
      EGL14.EGL_NONE
  };
  eglSurface = EGL14.eglCreateWindowSurface(eglDisplay, configs[0], surface, surfaceAttribs, 0);
  GlUtil.checkEglError("eglCreateWindowSurface");

  GLES20.glDisable(GLES20.GL_DEPTH_TEST);
  GLES20.glDisable(GLES20.GL_CULL_FACE);
}