private WriteableBitmap GetSurface(PixelBuffer pixelBuffer)
{
if (!Monitor.IsEntered(_syncRoot))
{
throw new InvalidOperationException();
}
WriteableBitmap surface = pixelBuffer.Surface;
if (surface == null ||
surface.PixelWidth != pixelBuffer.Width ||
surface.PixelHeight != pixelBuffer.Height)
{
DpiScale dpi = OffscreenGraphics.DpiScale;
surface = new WriteableBitmap(pixelBuffer.Width, pixelBuffer.Height, dpi.PixelsPerInchX, dpi.PixelsPerInchY, PixelFormats.Bgra32, null);
pixelBuffer.Surface = surface;
}
surface.Lock();
try
{
Marshal.Copy(pixelBuffer.DIB, 0, surface.BackBuffer, pixelBuffer.Size);
surface.AddDirtyRect(pixelBuffer.GetDirtyRectangle());
pixelBuffer.ClearDirtyRectangle();
}
finally
{
surface.Unlock();
}
return(surface);
}
private WriteableBitmap GetSurface(PixelBuffer pixelBuffer)
{
if (!Monitor.IsEntered(_syncRoot))
{
throw new InvalidOperationException();
}
WriteableBitmap surface = pixelBuffer.Surface;
if (surface is null || surface.PixelSize != new PixelSize(pixelBuffer.Width, pixelBuffer.Height))
{
surface?.Dispose();
surface = new WriteableBitmap(new PixelSize(pixelBuffer.Width, pixelBuffer.Height), OffscreenGraphics.DpiScale.Dpi, PixelFormat.Bgra8888, AlphaFormat.Premul);
pixelBuffer.Surface = surface;
}
using (ILockedFramebuffer frameBuffer = surface.Lock())
{
Marshal.Copy(pixelBuffer.DIB, 0, frameBuffer.Address, pixelBuffer.Size);
pixelBuffer.ClearDirtyRectangle();
}
return(surface);
}