如何解决Renderscript错误:未为此分配设置任何内存对象
我正在为Android的camera2开发YUV-> RGBA转换器,该转换器通过GPU纹理获取其输入并返回byte[]
(以及图像大小)。
这在我测试过的所有设备上都可以正常运行,但在Samsung Galaxy S9 +上,我在脚本的第一次运行时也会收到以下错误消息:
E/RenderScript(14384): Error: no memory object set to this allocation: 0x72072c2c80
D/RenderScript(14384): [RS-DIAG] A used allocation is not supported on the GPU
D/RenderScript(14384): [RS-DIAG] Launching CPU script : slot(1) 46 0x71cad8a000
,然后在以后运行:
D/RenderScript(14384): [RS-DIAG] GPU disabled due to earlier error
D/RenderScript(14384): [RS-DIAG] Launching CPU script : slot(1) 47 0x71cad8a000
我在顶部找不到有关两个错误消息的任何信息。我注意到,由于生成了正确的输出,该脚本似乎仍然可以按预期工作。
对于脚本不在GPU上运行的情况,我很好,但renderscript报告错误而不只是警告会使我失望。
我猜我真正的问题是:这个错误可以忽略吗,还是在其他设备/较新版本上失败?
仅供参考,这是我的代码:
import android.graphics.ImageFormat;
import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.Type;
import android.util.Log;
import android.util.Size;
import android.view.Surface;
public class YUV420Converter implements Allocation.OnBufferAvailableListener {
private static String TAG = "YUV420Converter";
private Allocation mYUVInputAllocation;
private Allocation mOutputAllocation;
private Allocation mDummyInputAllocation;
private Size mPreviewSize;
private ScriptC_yuv2rgb mScriptC;
private BGRA8888Listener mBGRA8888Listener;
public interface BGRA8888Listener {
public void newByteArray(byte[] bytes,Size size);
}
YUV420Converter(RenderScript rs,Size dimensions,BGRA8888Listener mBGRA8888Listener) {
mPreviewSize = dimensions;
this.mBGRA8888Listener = mBGRA8888Listener;
createAllocation(rs,dimensions);
mScriptC = new ScriptC_yuv2rgb(rs);
mScriptC.set_gCurrentFrame(mYUVInputAllocation);
mYUVInputAllocation.setOnBufferAvailableListener(this);
}
private void createAllocation(RenderScript rs,Size dimensions) {
Type.Builder yuvTypeBuilder = new Type.Builder(rs,Element.YUV(rs));
yuvTypeBuilder.setX(dimensions.getWidth());
yuvTypeBuilder.setY(dimensions.getHeight());
yuvTypeBuilder.setYuvFormat(ImageFormat.YUV_420_888);
mYUVInputAllocation = Allocation.createTyped(rs,yuvTypeBuilder.create(),Allocation.USAGE_IO_INPUT | Allocation.USAGE_SCRIPT);
Type.Builder rgbTypeBuilder = new Type.Builder(rs,Element.RGBA_8888(rs));
rgbTypeBuilder.setX(dimensions.getWidth());
rgbTypeBuilder.setY(dimensions.getHeight());
mDummyInputAllocation = Allocation.createTyped(rs,rgbTypeBuilder.create(),Allocation.USAGE_SCRIPT);
mOutputAllocation = Allocation.createTyped(rs,Allocation.USAGE_SCRIPT);
}
public Surface getInputNormalSurface() {
return mYUVInputAllocation.getSurface();
}
@Override
public void onBufferAvailable(Allocation a) {
Log.d(TAG,"Beginning conversion");
long start = System.currentTimeMillis();
// Get to newest input
mYUVInputAllocation.ioReceive();
// Run processing pass
mScriptC.forEach_yuv2rgb(mDummyInputAllocation,mOutputAllocation);
byte[] b = new byte[mPreviewSize.getWidth() * mPreviewSize.getHeight() * 4];
mOutputAllocation.copyTo(b);
Log.d(TAG,"Conversion took " + (System.currentTimeMillis() - start) + " ms");
mBGRA8888Listener.newByteArray(b,mPreviewSize);
}
}
在此伪代码中的用法如下:
renderScript = RenderScript.create(activity);
yuvConverter = new YUV420Converter(renderScript,yuvCaptureSize,bgra8888Listener);
List<Surface> surfaces = new ArrayList<>();
surfaces.add(yuvConverter.getInputNormalSurface());
cameraDevice.createCaptureSession(surfaces,... );
captureRequestBuilder.addTarget(yuvConverter.getInputNormalSurface());
cameraCaptureSession.capture(captureRequestBuilder.build(),...);
解决方法
不知道实际错误,但是您可以尝试使用android intrinisc来解决(是的,输出是RGBA): https://developer.android.com/reference/android/renderscript/ScriptIntrinsicYuvToRGB
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