private SurfaceImageSourceInterop CreateSurfaceImageSource(BrushType type, Rect r1, float[] args1, Rect r2, float[] args2)
{
SurfaceImageSourceInterop sis = null;
if (type == BrushType.SIS)
{
sis = new SurfaceImageSourceInterop(400, 400);
}
else
{
sis = new VirtualSurfaceImageSourceInterop(400, 400);
}
sis.SetDevice(dxgiDevice);
SurfaceImageSourceWrapper surfaceImageSourceWrapper = new SurfaceImageSourceWrapper(sis, r1, args1, r2, args2, dxgiDevice);
// Add a call back to redraw VSIS
if (type == BrushType.VSIS)
{
((VirtualSurfaceImageSourceInterop)sis).RegisterForUpdatesNeeded(new DXInteropVirtualSurfaceUpdatesCallback(surfaceImageSourceWrapper));
}
else
{
// Update SIS only,since the call back will update VSIS.
sis.UpdateSurface(r1, args1);
sis.UpdateSurface(r2, args2);
}
SurfaceImageSourceList.Add(surfaceImageSourceWrapper);
return(sis);
}
public DXInteropVirtualSurfaceUpdatesCallback(SurfaceImageSourceWrapper surfaceImageSourceWrapperArg)
{
this.surfaceImageSourceWrapper = surfaceImageSourceWrapperArg;
}
