protected void UpdateInternalBitmap()
{
if (_drawer == null || _wb == null)
{
return;
}
// Update inner bitmap
int w = _wb.PixelWidth;
int h = _wb.PixelHeight;
// get updated image from control
var image = _drawer.GetImage(w, h, _contextId);
if (image == null)
{
return;
}
#if ALLOW_SKIA
var imageInfo = new SKImageInfo(w, h, SKColorType.Bgra8888, SKAlphaType.Premul);
_wb.Lock();
using (var surface = SKSurface.Create(imageInfo, _wb.BackBuffer, _wb.BackBufferStride)) {
if (surface != null)
{
// render image to the bitmap
image.Draw(surface.Canvas, true);
}
else
{
}
}
_wb.AddDirtyRect(new Int32Rect(0, 0, w, h));
_wb.Unlock();
#elif ALLOW_GDI
throw new Exception("Implement!!!");
#endif
}