private void EnsureRenderTarget()
{
if (_renderTarget == null)
{
_renderTarget = new RenderTarget2D(GraphicsDevice, (int)ActualWidth, (int)ActualHeight,
false, SurfaceFormat.Bgra32, DepthFormat.Depth24Stencil8, 1,
RenderTargetUsage.PlatformContents, true);
var handle = _renderTarget.GetSharedHandle();
if (handle == IntPtr.Zero)
throw new ArgumentException("Handle could not be retrieved");
_renderTargetD3D9 = new SharpDX.Direct3D9.Texture(DeviceService.D3DDevice,
_renderTarget.Width, _renderTarget.Height,
1, SharpDX.Direct3D9.Usage.RenderTarget, SharpDX.Direct3D9.Format.A8R8G8B8,
SharpDX.Direct3D9.Pool.Default, ref handle);
using (SharpDX.Direct3D9.Surface surface = _renderTargetD3D9.GetSurfaceLevel(0))
{
_d3DImage.Lock();
_d3DImage.SetBackBuffer(D3DResourceType.IDirect3DSurface9, surface.NativePointer);
_d3DImage.Unlock();
}
}
}
