protected override RequestedAction Render(ImageState s)
{
bool detect = NameValueCollectionExtensions.Get(s.settings, "f.detect", false);
bool getlayout = NameValueCollectionExtensions.Get(s.settings, "f.getlayout", false);
if (!detect && !getlayout)
{
return(RequestedAction.None);
}
var d = new DetectionResponse <Face>();
try {
//Only detect faces if it was requested.
if (detect)
{
using (var detector = ConfigureDetection(s.settings)) d.features = detector.DetectFeatures(s.sourceBitmap);
}
} catch (TypeInitializationException e) {
throw e;
} catch (Exception e) {
d.message = e.Message;
}
d.PopulateFrom(s);
throw d.GetResponseException(s.settings["callback"]);
}
/// <summary>
/// This is where we hijack the resizing process, interrupt it, and send back the json data we created.
/// </summary>
/// <param name="sender"></param>
/// <param name="context"></param>
/// <param name="e"></param>
void Pipeline_PreHandleImage(System.Web.IHttpModule sender, System.Web.HttpContext context, Caching.IResponseArgs e)
{
bool detect = NameValueCollectionExtensions.Get(e.RewrittenQuerystring, "f.detect", false);
bool getlayout = NameValueCollectionExtensions.Get(e.RewrittenQuerystring, "f.getlayout", false);
if (!detect && !getlayout)
{
return;
}
DetectionResponse <Face> .InjectExceptionHandler(e as ResponseArgs);
}
