Question

我有一些定时器，耗时180〜200 ms。如果计时器已过去，则创建字节数组（大小为3840 * 1250）并生成事件。然后，事件接收器将创建位图并将图像更新为图片框。但是，我的方法中有一个致命的致命执行引擎错误（CreateBitmapFromByteSource（w，h，source）。

当BitmapEncoder调用Save方法时发生异常。

请帮助我...

计时器经过的身体

private void _timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
    {
        System.Threading.Thread tr = new System.Threading.Thread(() => 
        {
            int trID = System.Threading.Thread.CurrentThread.ManagedThreadId;

            byte[] source1 = BitmapUtilities.GenerateSourceData(this._sourceDataLength);
            byte[] srouce2 = BitmapUtilities.GenerateSourceData(this._sourceDataLength);

            if (UpdateSourceData != null)
                UpdateSourceData(this, new ImageGenerateEventArgs(Count, this._width, this._height, source1, srouce2));
        });
        tr.IsBackground = true;
        tr.Start();
    }

事件接收器主体

private void ImageViewer_UpdateSourceData(object sender, ImageGenerateEventArgs args)
    {
        Action lambda = () => 
        {
            int trID = System.Threading.Thread.CurrentThread.ManagedThreadId;
            Bitmap bitmap = BitmapUtilities.CreateBitmapFromByteSource(args.W, args.H, args.S1);
            bitmap.RotateFlip(RotateFlipType.Rotate180FlipX);

            if (this.pictureBox1.Image != null)
                this.pictureBox1.Image.Dispose();

            this.pictureBox1.Image = bitmap;
            this.pictureBox1.Update();
            bitmap.Dispose();

            bitmap = BitmapUtilities.CreateBitmapFromByteSource(args.W, args.H, args.S2);
            bitmap.RotateFlip(RotateFlipType.Rotate180FlipX);

            if (this.pictureBox2.Image != null)
                this.pictureBox2.Image.Dispose();

            this.pictureBox2.Image = bitmap;
            this.pictureBox2.Update();

            bitmap.Dispose();
        };

        if (this.InvokeRequired)
            this.Invoke(lambda);
        else
            lambda();
    }

CreateBitmapFromByteSource（w，h，source）正文

static public Bitmap CreateBitmapFromByteSource(int width, int height, byte[] byteSource)
    {
        Bitmap image;
        BitmapSource src;
        try
        {
            src = BitmapSource.Create(width, height, 96, 96, System.Windows.Media.PixelFormats.Gray8, null, byteSource, width);
            using (MemoryStream ms = new MemoryStream())
            {
                BitmapEncoder enc = new BmpBitmapEncoder();
                enc.Frames.Add(BitmapFrame.Create(src));
                enc.Save(ms);
                image = new System.Drawing.Bitmap(ms);
            }

            return image;
        }
        catch(Exception ex)
        {
            Console.WriteLine(ex.ToString());
            return null;
        }
    }

为什么会发生异常FatalExecutionEngineError此代码

0 个答案: