/// <summary>
/// Decode JPEG2000 data to an <seealso cref="System.Drawing.Image"/> and
/// <seealso cref="ManagedImage"/>
/// </summary>
/// <param name="encoded">JPEG2000 encoded data</param>
/// <param name="managedImage">ManagedImage object to decode to</param>
/// <param name="image">Image object to decode to</param>
/// <returns>True if the decode succeeds, otherwise false</returns>
public static bool DecodeToImage(byte[] encoded, out ManagedImage managedImage, out Image image)
{
managedImage = null;
image = null;
if (DecodeToImage(encoded, out managedImage))
{
try
{
image = LoadTGAClass.LoadTGA(new MemoryStream(managedImage.ExportTGA()));
return(true);
}
catch (Exception ex)
{
Logger.Log("Failed to export and load TGA data from decoded image", Helpers.LogLevel.Error, ex);
return(false);
}
}
else
{
return(false);
}
}
public static ManagedImage LoadAlphaLayer(string fileName)
{
Stream stream = Helpers.GetResourceStream(fileName);
if (stream != null)
{
try
{
// FIXME: It would save cycles and memory if we wrote a direct
// loader to ManagedImage for these files instead of using the
// TGA loader
Bitmap bitmap = LoadTGAClass.LoadTGA(stream);
stream.Close();
ManagedImage alphaLayer = new ManagedImage(bitmap);
// Disable all layers except the alpha layer
alphaLayer.Red = null;
alphaLayer.Green = null;
alphaLayer.Blue = null;
alphaLayer.Channels = ManagedImage.ImageChannels.Alpha;
return(alphaLayer);
}
catch (Exception e)
{
Logger.Log(String.Format("LoadAlphaLayer() failed on file: {0} ({1}", fileName, e.Message),
Helpers.LogLevel.Error, e);
return(null);
}
}
else
{
return(null);
}
}
