public override bool Save(System.IO.Stream stream, PureImage image)
{
WindowsPresentationImage ret = (WindowsPresentationImage)image;
if (ret.Img != null)
{
try
{
PngBitmapEncoder e = new PngBitmapEncoder();
e.Frames.Add(BitmapFrame.Create(ret.Img as BitmapSource));
e.Save(stream);
}
catch
{
return(false);
}
}
else
{
return(false);
}
return(true);
}
public override PureImage FromStream(System.IO.Stream stream)
{
WindowsPresentationImage ret = null;
if (stream != null)
{
try
{
PngBitmapDecoder bitmapDecoder = new PngBitmapDecoder(stream, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.OnLoad);
ImageSource m = bitmapDecoder.Frames[0];
if (m != null)
{
ret = new WindowsPresentationImage();
ret.Img = m;
if (ret.Img.CanFreeze)
{
ret.Img.Freeze();
}
}
m = null;
bitmapDecoder = null;
}
catch
{
try
{
stream.Seek(0, System.IO.SeekOrigin.Begin);
JpegBitmapDecoder bitmapDecoder = new JpegBitmapDecoder(stream, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.OnLoad);
ImageSource m = bitmapDecoder.Frames[0];
if (m != null)
{
ret = new WindowsPresentationImage();
ret.Img = m;
if (ret.Img.CanFreeze)
{
ret.Img.Freeze();
}
}
m = null;
bitmapDecoder = null;
}
catch
{
ret = null;
}
}
finally
{
try
{
stream.Seek(0, System.IO.SeekOrigin.Begin);
if (ret == null)
{
stream.Dispose();
}
}
catch
{
}
}
}
return(ret);
}
