/// <summary>
/// Updates pixel data and if necessary bitmap as well.
/// </summary>
/// <param name="frame"></param>
/// <param name="updateDisplay">Updates the bitmap if true.</param>
public void Update(ReplayColorImageFrame frame, bool updateDisplay = true)
{
PixelData = new byte[frame.PixelDataLength];
frame.CopyPixelDataTo(PixelData);
if (!updateDisplay)
return;
if (Bitmap == null) {
Bitmap = new WriteableBitmap(frame.Width, frame.Height,
96, 96, PixelFormats.Bgr32, null);
}
int stride = Bitmap.PixelWidth * Bitmap.Format.BitsPerPixel / 8;
Int32Rect dirtyRect = new Int32Rect(0, 0, Bitmap.PixelWidth, Bitmap.PixelHeight);
if (frame.Format == ColorImageFormat.RawYuvResolution640x480Fps15) {
if (yuvTemp == null)
yuvTemp = new int[frame.Width * frame.Height];
int current = 0;
for (int uyvyIndex = 0; uyvyIndex < PixelData.Length; uyvyIndex += 4) {
byte u = PixelData[uyvyIndex];
byte y1 = PixelData[uyvyIndex + 1];
byte v = PixelData[uyvyIndex + 2];
byte y2 = PixelData[uyvyIndex + 3];
yuvTemp[current++] = ConvertFromYUV(y1, u, v);
yuvTemp[current++] = ConvertFromYUV(y2, u, v);
}
Bitmap.WritePixels(dirtyRect, yuvTemp, stride, 0);
} else {
Bitmap.WritePixels(dirtyRect, PixelData, stride, 0);
}
RaisePropertyChanged(() => Bitmap);
}
