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;
}
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);
}
public async Task <ExtendImageSource> InitializeAsync(CoreDispatcher dispatcher,
IRandomAccessStream streamSource, CancellationTokenSource cancellationTokenSource)
{
var inMemoryStream = new InMemoryRandomAccessStream();
var copyAction = RandomAccessStream.CopyAndCloseAsync(
streamSource.GetInputStreamAt(0L),
inMemoryStream.GetOutputStreamAt(0L));
await copyAction.AsTask(cancellationTokenSource.Token);
var bitmapDecoder = await BitmapDecoder.
CreateAsync(BitmapDecoder.GifDecoderId, inMemoryStream).AsTask(cancellationTokenSource.Token).ConfigureAwait(false);
var imageProperties = await RetrieveImagePropertiesAsync(bitmapDecoder);
var frameProperties = new List <FrameProperties>();
for (var i = 0u; i < bitmapDecoder.FrameCount; i++)
{
var bitmapFrame = await bitmapDecoder.GetFrameAsync(i).AsTask(cancellationTokenSource.Token).ConfigureAwait(false);;
frameProperties.Add(await RetrieveFramePropertiesAsync(i, bitmapFrame));
}
_frameProperties = frameProperties;
_bitmapDecoder = bitmapDecoder;
_imageProperties = imageProperties;
_dispatcher = dispatcher;
await _dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
CreateCanvasResources();
});
_isInitialized = true;
ExtendImageSource imageSource = new ExtendImageSource();
if (_canvasImageSource != null)
{
imageSource.PixelWidth = _imageProperties.PixelWidth;
imageSource.PixelHeight = _imageProperties.PixelHeight;
imageSource.ImageSource = _canvasImageSource;
}
return(imageSource);
}
public async Task<ExtendImageSource> InitializeAsync(CoreDispatcher dispatcher,
IRandomAccessStream streamSource, CancellationTokenSource cancellationTokenSource)
{
var inMemoryStream = new InMemoryRandomAccessStream();
var copyAction = RandomAccessStream.CopyAndCloseAsync(
streamSource.GetInputStreamAt(0L),
inMemoryStream.GetOutputStreamAt(0L));
await copyAction.AsTask(cancellationTokenSource.Token);
var bitmapDecoder = await BitmapDecoder.
CreateAsync(BitmapDecoder.GifDecoderId, inMemoryStream).AsTask(cancellationTokenSource.Token).ConfigureAwait(false);
var imageProperties = await RetrieveImagePropertiesAsync(bitmapDecoder);
var frameProperties = new List<FrameProperties>();
for (var i = 0u; i < bitmapDecoder.FrameCount; i++)
{
var bitmapFrame = await bitmapDecoder.GetFrameAsync(i).AsTask(cancellationTokenSource.Token).ConfigureAwait(false); ;
frameProperties.Add(await RetrieveFramePropertiesAsync(i, bitmapFrame));
}
_frameProperties = frameProperties;
_bitmapDecoder = bitmapDecoder;
_imageProperties = imageProperties;
_dispatcher = dispatcher;
await _dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
CreateCanvasResources();
});
_isInitialized = true;
ExtendImageSource imageSource = new ExtendImageSource();
if (_canvasImageSource != null)
{
imageSource.PixelWidth = _imageProperties.PixelWidth;
imageSource.PixelHeight = _imageProperties.PixelHeight;
imageSource.ImageSource = _canvasImageSource;
}
return imageSource;
}
