dequeueBuffer:如果不设置缓冲区计数,则无法使多个缓冲区出列

Question

我在Rhomobile 5.0.2 WebView应用程序中的Android 4.4.2 Moto X 2013上收到以下错误.该应用程序使用SDK 19和minAPI级别17进行编译.

经过一些研究后,似乎这是Snapdragon 800/Adreno GPU设备的一个问题:

https://code.google.com/p/android/issues/detail?id=63738 https://code.google.com/p/android/issues/detail?id=71742

禁用硬件加速并不是一个真正的选择,因为它使WebView非常缓慢.

由于错误是:

dequeueBuffer: can't dequeue multiple buffers without setting the buffer count

如何在com.rhomobile.rhodes.RhodesActivity中设置缓冲区计数？

11-08 18:28:31.227: I/SFPerfTracer(238):      triggers: (rate: 0:0) (423387 sw vsyncs) (0 skipped) (0:361861 vsyncs) (2:863582)
11-08 18:28:31.328: W/Adreno-EGLSUB(4749): <DequeueBuffer:593>: dequeue native buffer fail: Unknown error 2147483646, buffer=0x61213afc, handle=0x0
11-08 18:28:31.331: W/Adreno-EGLSUB(4749): <SwapBuffers:1343>: Invalid native buffer. Failed to queueBuffer
11-08 18:28:31.331: W/Adreno-EGLSUB(4749): <updater_thread:456>: native buffer is NULL
11-08 18:28:31.346: E/BufferQueue(238): [com.myapp.myapp/com.rhomobile.rhodes.RhodesActivity] dequeueBuffer: can't dequeue multiple buffers without setting the buffer count
11-08 18:28:31.346: W/Adreno-EGLSUB(4749): <DequeueBuffer:593>: dequeue native buffer fail: Invalid argument, buffer=0x61213afc, handle=0x0
11-08 18:28:31.347: W/Adreno-ES20(4749): <gl2_surface_swap:43>: GL_OUT_OF_MEMORY
11-08 18:28:31.347: W/Adreno-EGL(4749): <qeglDrvAPI_eglSwapBuffers:3596>: EGL_BAD_SURFACE
11-08 18:28:31.347: W/HardwareRenderer(4749): EGL error: EGL_BAD_SURFACE
11-08 18:28:31.352: W/HardwareRenderer(4749): Mountain View, we've had a problem here. Switching back to software rendering.
11-08 18:28:31.478: D/qdgralloc(4749): Invalid gralloc handle (at 0x0): ver(-1/12) ints(-1/12) fds(-1/2) magic(????/gmsm)
11-08 18:28:31.478: W/GraphicBufferMapper(4749): lock(...) failed -22 (Invalid argument)
11-08 18:28:31.478: W/Surface(4749): failed locking buffer (handle = 0x0)
11-08 18:28:31.531: E/ViewRootImpl(4749): Could not lock surface
11-08 18:28:31.531: E/ViewRootImpl(4749): java.lang.IllegalArgumentException
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.Surface.nativeLockCanvas(Native Method)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.Surface.lockCanvas(Surface.java:243)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.ViewRootImpl.drawSoftware(ViewRootImpl.java:2466)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.ViewRootImpl.draw(ViewRootImpl.java:2440)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2284)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1914)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1024)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5796)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.Choreographer.doCallbacks(Choreographer.java:574)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.Choreographer.doFrame(Choreographer.java:544)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.os.Handler.handleCallback(Handler.java:733)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.os.Handler.dispatchMessage(Handler.java:95)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.os.Looper.loop(Looper.java:136)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at android.app.ActivityThread.main(ActivityThread.java:5102)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at java.lang.reflect.Method.invokeNative(Native Method)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at java.lang.reflect.Method.invoke(Method.java:515)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
11-08 18:28:31.531: E/ViewRootImpl(4749):      at dalvik.system.NativeStart.main(Native Method)

Answer 1

这是一个内存不足问题，如下所示：

11-08 18:28:31.347: W/Adreno-ES20(4749): <gl2_surface_swap:43>: GL_OUT_OF_MEMORY

android.view.Surface正在进行的更新数量超出了 GPU 的处理能力。我不确定你是否可以尝试抓住这个。
我还相信，在许多没有崩溃的设备上，用户偶尔会遇到 UI 滞后的情况。

几年前我也遇到过类似的问题。就我而言，这主要是滞后，但我相信问题是相同的。

为了解决这个问题，我添加了一个计数器来测量帧速率。我看到帧速率很高，但突然下降得很厉害，所以我应用了平衡逻辑来搜索不会滞后的最高 FPS。

• 从 60 FPS 开始
• 如果滞后，请将 FPS 除以 2
• 如果不是，则将其设置为最后一个值和当前值之间的平均值。
• 重复直到你满意为止；）

它基本上是对完美 FPS 的二分搜索。

就您而言，这有点棘手，因为您会遇到崩溃，因此您必须保留 FPS 计数器，并且在搜索时更加小心。

将 FPS 日志发送到您的服务器。一旦您拥有足够的数据，您就可以更智能地了解每个设备模块的 FPS 起始点。

至于将你的手放在 WebView SurfaceView 上，我想这也不是小事，但我们正在谈论 Android 4.4.2，所以没有什么是你不能用反射做的:)