public override IObservable <IplImage> Process(IObservable <IplImage> source)
{
return(Observable.Create <IplImage>(observer =>
{
var name = TextureName;
var texture = default(Texture);
var textureSize = default(Size);
if (string.IsNullOrEmpty(name))
{
throw new InvalidOperationException("A texture name must be specified.");
}
return source.CombineEither(
ShaderManager.WindowSource.Do(window =>
{
window.Update(() =>
{
try { texture = window.ResourceManager.Load <Texture>(name); }
catch (Exception ex) { observer.OnError(ex); }
});
}),
(input, window) =>
{
window.Update(() =>
{
var target = TextureTarget;
if (target > TextureTarget.TextureBindingCubeMap && target < TextureTarget.ProxyTextureCubeMap)
{
GL.BindTexture(TextureTarget.TextureCubeMap, texture.Id);
}
else
{
GL.BindTexture(target, texture.Id);
}
var internalFormat = textureSize != input.Size ? InternalFormat : (PixelInternalFormat?)null;
TextureHelper.UpdateTexture(target, internalFormat, input);
textureSize = input.Size;
});
return input;
}).SubscribeSafe(observer);
}));
}
