public async Task <ImagePackage> InitializeAsync(CoreDispatcher dispatcher, Image image, Uri uriSource,
IRandomAccessStream streamSource,
CancellationTokenSource cancellationTokenSource)
{
byte[] bytes = new byte[streamSource.Size];
await streamSource.ReadAsync(bytes.AsBuffer(), (uint)streamSource.Size, InputStreamOptions.None).AsTask(cancellationTokenSource.Token);
int width, height;
WriteableBitmap writeableBitmap = null;
if (WebpCodec.GetInfo(bytes, out width, out height))
{
writeableBitmap = new WriteableBitmap(width, height);
await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
var uri = image.Tag as Uri;
if (uri == uriSource)
{
image.Source = writeableBitmap;
}
});
WebpCodec.Decode(writeableBitmap, bytes);
}
return(new ImagePackage(this, writeableBitmap, writeableBitmap.PixelWidth, writeableBitmap.PixelHeight));
}
public async Task <ImageSource> InitializeAsync(CoreDispatcher dispatcher, IRandomAccessStream streamSource, CancellationTokenSource cancellationTokenSource)
{
byte[] bytes = new byte[streamSource.Size];
await streamSource.ReadAsync(bytes.AsBuffer(), (uint)streamSource.Size, InputStreamOptions.None).AsTask(cancellationTokenSource.Token);
var imageSource = WebpCodec.Decode(bytes);
return(imageSource);
}
public async Task <ExtendImageSource> InitializeAsync(CoreDispatcher dispatcher, IRandomAccessStream streamSource,
CancellationTokenSource cancellationTokenSource)
{
byte[] bytes = new byte[streamSource.Size];
await streamSource.ReadAsync(bytes.AsBuffer(), (uint)streamSource.Size, InputStreamOptions.None).AsTask(cancellationTokenSource.Token);
WriteableBitmap writeableBitmap = WebpCodec.Decode(bytes);
ExtendImageSource imageSource = new ExtendImageSource();
if (writeableBitmap != null)
{
imageSource.PixelWidth = writeableBitmap.PixelWidth;
imageSource.PixelHeight = writeableBitmap.PixelHeight;
imageSource.ImageSource = writeableBitmap;
}
return(imageSource);
}
