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当我尝试将纹理和变换矩阵渲染到 EGLSurface 时，视图中看不到任何显示。

作为此问题的后续，我通过遵循 grafika/fadden 示例代码连续捕获稍微修改了代码

这是我的代码：

这是一个在 RenderThread 上运行的绘制方法。

无论数据是在生产者端从本机代码生成的，此绘制方法都会被正确调用。

 public void drawFrame() {

        mOffScreenSurface.makeCurrent();
        mCameraTexture.updateTexImage();
        mCameraTexture.getTransformMatrix(mTmpMatrix);

        mSurfaceWindowUser.makeCurrent();
        mFullFrameBlit.drawFrame(mTextureId, mTmpMatrix);
        mSurfaceWindowUser.swapBuffers();


    }

run method of RenderThread ->

     public void run() {
            Looper.prepare();

            mHandler = new RenderHandler(this);

            mEglCore = new EglCore(null, EglCore.FLAG_RECORDABLE);

            mOffScreenSurface = new OffscreenSurface(mEglCore, 640, 480);

            mOffScreenSurface.makeCurrent();

            mFullFrameBlit = new FullFrameRect(
                    new Texture2dProgram(Texture2dProgram.ProgramType.TEXTURE_EXT));
            mTextureId = mFullFrameBlit.createTextureObject();

            mCameraTexture = new SurfaceTexture(mTextureId);
            mCameraSurface = new Surface (mCameraTexture);   // This surface i am sending to Native Code where i use ANativeWindow reference and copy the data using post method. {producer}

            mCameraTexture.setOnFrameAvailableListener(new SurfaceTexture.OnFrameAvailableListener() {
                @Override
                public void onFrameAvailable(SurfaceTexture surfaceTexture) {
                    Log.d (TAG, "Long breath.. data is pumbed by Native Layer producer..");
                    mHandler.frameReceivedFromProducer();
                }
            });

            mSurfaceWindowUser = new WindowSurface(mEglCore, mSurfaceUser, false);   // this mSurfaceUser is a surface received from MainActivity TextureView.
    }

为了确认本机端的产品是否产生数据，如果我直接通过用户界面而没有任何 EGL 配置，则将帧渲染到屏幕中。

在原生级别，

geometryResult = ANativeWindow_setBuffersGeometry(userNaiveWindow,640, 480, WINDOW_FORMAT_RGBA_8888);

渲染我使用的框架

  ANativeWindow_lock  and ANativeWindow_unlockAndPost() to render directly frame into buffer.

我无法思考可能出了什么问题以及我必须在哪里挖掘更多？

感谢法登的帮助。

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0 回答 0