glsurfaceview + camerax 示例

好的，我可以为你提供一个简单的GLSurfaceView和CameraX结合的示例代码，供参考：

class CameraXGLSurfaceView(context: Context, attrs: AttributeSet?) : GLSurfaceView(context, attrs) {

    private val renderer: CameraXGLRenderer

    init {
        // 设置OpenGL版本
        setEGLContextClientVersion(2)
        // 创建渲染器
        renderer = CameraXGLRenderer(context)
        // 设置渲染器
        setRenderer(renderer)
        // 设置渲染模式为连续模式
        renderMode = RENDERMODE_CONTINUOUSLY
    }

    fun startCamera() {
        // 启动相机
        renderer.startCamera()
    }

    fun stopCamera() {
        // 停止相机
        renderer.stopCamera()
    }

}

class CameraXGLRenderer(private val context: Context) : GLSurfaceView.Renderer {

    private val cameraExecutor = Executors.newSingleThreadExecutor()
    private lateinit var cameraProvider: ProcessCameraProvider
    private lateinit var preview: Preview

    override fun onSurfaceCreated(gl: GL10?, config: EGLConfig?) {
        // 初始化OpenGL环境
        GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f)
    }

    override fun onSurfaceChanged(gl: GL10?, width: Int, height: Int) {
        // 设置视口大小
        GLES20.glViewport(0, 0, width, height)
    }

    override fun onDrawFrame(gl: GL10?) {
        // 清空屏幕
        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT)

        // 绘制相机预览数据
        preview.surfaceTexture?.let {
            // 更新纹理图像
            it.updateTexImage()
            // 绘制纹理
            GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4)
        }
    }

    fun startCamera() {
        // 启动相机
        val cameraProviderFuture = ProcessCameraProvider.getInstance(context)
        cameraProviderFuture.addListener({
            // 获取相机提供者
            cameraProvider = cameraProviderFuture.get()
            // 创建预览用例
            preview = Preview.Builder().build()

            // 绑定预览用例到相机
            val cameraSelector = CameraSelector.Builder()
                .requireLensFacing(CameraSelector.LENS_FACING_BACK)
                .build()

            val camera = cameraProvider.bindToLifecycle(
                context as LifecycleOwner,
                cameraSelector,
                preview
            )

            // 创建纹理和SurfaceTexture
            val surfaceTexture = SurfaceTexture(0)
            surfaceTexture.setDefaultBufferSize(preview.width, preview.height)

            // 设置预览用例的SurfaceTexture
            preview.setSurfaceProvider {
                val surface = Surface(surfaceTexture)
                it.provideSurface(surface, cameraExecutor, {
                    surface.release()
                })
            }

        }, ContextCompat.getMainExecutor(context))
    }

    fun stopCamera() {
        // 停止相机
        cameraProvider.unbindAll()
    }
}

以上是一个简单的GLSurfaceView和CameraX的结合示例，其中GLSurfaceView用于显示相机预览数据，CameraX用于获取相机数据。你可以根据自己的需求来进行修改和扩展。