protected virtual RequestedAction Encode(IWICComponentFactory factory, IWICBitmapSource data, Size imageSize, ImageJob job)
{
WicEncoderPlugin encoder = new WicEncoderPlugin(job.Settings, job.SourcePathData);
//Create the IStream/MemoryStream
var outputStream = new MemoryIStream();
encoder.EncodeToStream(factory, data, imageSize, outputStream);
object dest = job.Dest;
// Try to save the bitmap
if (dest is string) {
//Make physical and resolve variable references all at the same time.
job.FinalPath = job.ResolveTemplatedPath(job.Dest as string,
delegate(string var) {
if ("ext".Equals(var, StringComparison.OrdinalIgnoreCase)) return encoder.Extension;
if ("width".Equals(var, StringComparison.OrdinalIgnoreCase)) return imageSize.Width.ToString();
if ("height".Equals(var, StringComparison.OrdinalIgnoreCase)) return imageSize.Height.ToString();
return null;
});
//If requested, auto-create the parent directory(ies)
if (job.CreateParentDirectory) {
string dirName = Path.GetDirectoryName(job.FinalPath);
if (!Directory.Exists(dirName)) Directory.CreateDirectory(dirName);
}
using (FileStream fs = new FileStream(job.FinalPath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None)) {
outputStream.WriteTo(fs);
}
} else if (dest is Stream) {
outputStream.WriteTo((Stream)dest);
} else return RequestedAction.None;
return RequestedAction.Cancel;
}
public void Write(System.Drawing.Image i, System.IO.Stream s)
{
//A list of COM objects to destroy
List<object> com = new List<object>();
try {
var factory = (IWICComponentFactory)new WICImagingFactory();
com.Add(factory);
Stopwatch conversion = new Stopwatch();
conversion.Start();
IWICBitmap b = ConversionUtils.ToWic(factory,i as Bitmap);
conversion.Stop();
Stopwatch encoding = new Stopwatch();
encoding.Start();
//Prepare output stream
var outputStream = new MemoryIStream();
EncodeToStream(factory, b, i.Size, outputStream);
encoding.Stop();
Stopwatch streaming = new Stopwatch();
streaming.Start();
outputStream.WriteTo(s);
streaming.Stop();
} finally {
//Manually cleanup all the com reference counts, aggressively
while (com.Count > 0) {
Marshal.ReleaseComObject(com[com.Count - 1]); //In reverse order, so no item is ever deleted out from under another.
com.RemoveAt(com.Count - 1);
}
}
}
