/// <summary>
/// Takes care of resizeing image from url parameters
/// </summary>
/// <param name="parameters">
/// The parameters.
/// </param>
/// <param name="context">
/// </param>
/// <param name="imageFormat">
/// </param>
/// <returns>
/// </returns>
private byte[] GetImageData(IImageParameters parameters, HttpContext context, ImageFormat imageFormat)
{
IImageProvider provider = Factory.GetImageProvider();
if (provider.IsNull())
{
throw new ApplicationException("Unable to determine image provider");
}
byte[] data = provider.GetImageData(parameters);
if (data.IsNull())
{
return(null);
}
using (var sourceImageData = new MemoryStream(data))
{
var outputImg = (Bitmap)Image.FromStream(sourceImageData);
foreach (IImageFilter imageFilter in this.m_ImageFilters)
{
Bitmap oldOutputImage = outputImg;
bool modified = imageFilter.Process(parameters, context, ref outputImg);
if (modified)
{
// Dispose old bitmap
oldOutputImage.Dispose();
}
}
using (outputImg)
{
// Encode image
return(s_ImageTool.Encode(outputImg, imageFormat));
}
}
}