public override void Render(RenderContext parentRenderContext)
{
Effect effect = Effect;
if (!IsVisible || effect == null)
{
return;
}
RectangleF bounds = ActualBounds;
if (bounds.Width <= 0 || bounds.Height <= 0)
{
return;
}
Matrix?layoutTransformMatrix = LayoutTransform == null ? new Matrix?() : LayoutTransform.GetTransform();
Matrix?renderTransformMatrix = RenderTransform == null ? new Matrix?() : RenderTransform.GetTransform();
RenderContext localRenderContext = parentRenderContext.Derive(bounds, layoutTransformMatrix, renderTransformMatrix, RenderTransformOrigin, Opacity);
_inverseFinalTransform = Matrix.Invert(localRenderContext.Transform);
DeviceEx device = SkinContext.Device;
Surface backBuffer = device.GetRenderTarget(0);
SurfaceDescription desc = backBuffer.Description;
SurfaceDescription?textureDesc = _texture == null ? new SurfaceDescription?() : _texture.GetLevelDescription(0);
if (!textureDesc.HasValue || textureDesc.Value.Width != desc.Width || textureDesc.Value.Height != desc.Height)
{
TryDispose(ref _texture);
_texture = new Texture(device, desc.Width, desc.Height, 1, Usage.RenderTarget, Format.A8R8G8B8, Pool.Default);
}
using (Surface destSurfaceRef = _texture.GetSurfaceLevel(0))
device.StretchRectangle(backBuffer, destSurfaceRef, TextureFilter.None);
UpdateEffectMask(effect, localRenderContext.OccupiedTransformedBounds, desc.Width, desc.Height, localRenderContext.ZOrder);
if (effect.BeginRender(_texture, new RenderContext(Matrix.Identity, 1.0d, bounds, localRenderContext.ZOrder)))
{
_effectContext.Render(0);
effect.EndRender();
}
backBuffer.Dispose();
}