/// <summary>
///
/// </summary>
public static unsafe WriteableBitmap GetBitmap(this SharpDX.Direct3D11.Texture2D tex)
{
DataRectangle db;
using (var copy = tex.GetCopy())
using (var surface = copy.QueryInterface <SharpDX.DXGI.Surface>())
{
// can't destroy the surface now with WARP driver
DataStream ds;
db = surface.Map(DXGI.MapFlags.Read, out ds);
int w = tex.Description.Width;
int h = tex.Description.Height;
var wb = new WriteableBitmap(w, h, 96.0, 96.0, PixelFormats.Bgra32, null);
wb.Lock();
try
{
uint *wbb = (uint *)wb.BackBuffer;
ds.Position = 0;
for (int y = 0; y < h; y++)
{
ds.Position = y * db.Pitch;
for (int x = 0; x < w; x++)
{
var c = ds.Read <uint>();
wbb[y * w + x] = c;
}
}
ds.Dispose();
}
finally
{
wb.AddDirtyRect(new Int32Rect(0, 0, w, h));
wb.Unlock();
}
return(wb);
}
}