public ThumbnailRenderer(Size thumbnailSize, Action <IImageProcessor, SoftwareBitmap> thumbnailCompleteAction)
{
m_thumbnailSize = thumbnailSize;
m_thumbnailCompleteAction = thumbnailCompleteAction;
m_bitmapRenderer = new SoftwareBitmapRenderer();
m_bitmapRenderer.Size = thumbnailSize;
}
public ThumbnailRenderer(Size thumbnailSize, Action<IImageProcessor, SoftwareBitmap> thumbnailCompleteAction)
{
m_thumbnailSize = thumbnailSize;
m_thumbnailCompleteAction = thumbnailCompleteAction;
m_bitmapRenderer = new SoftwareBitmapRenderer();
m_bitmapRenderer.Size = thumbnailSize;
}
public async Task UpdateThumbnailsAsync()
{
#if DEBUG
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
#endif
var fullSizedSourceBitmap = ((SoftwareBitmapImageSource)m_source).SoftwareBitmap;
SoftwareBitmap thumbnailSizedSourceBitmap;
// Some image processors can render at thumbnail resolution. Prepare a scaled down source for them.
using (var thumbnailSourceRenderer = new SoftwareBitmapRenderer(m_source))
{
thumbnailSourceRenderer.Size = ThumbnailSize;
thumbnailSourceRenderer.OutputOption = OutputOption.PreserveAspectRatio;
thumbnailSizedSourceBitmap = await thumbnailSourceRenderer.RenderAsync().AsTask().ConfigureAwait(false);
}
var imageProcessors = await m_createImageProcessorsTask.ConfigureAwait(false);
var batchTasks = Enumerable.Repeat((Task)Task.FromResult(false), 4).ToArray();
var thumbnailRenderers = new ThumbnailRenderer[batchTasks.Length];
for (int i = 0; i < thumbnailRenderers.Length; ++i)
{
thumbnailRenderers[i] = new ThumbnailRenderer(ThumbnailSize, OnThumbnailComplete);
}
for (int imageProcessorIndex = 0; imageProcessorIndex < imageProcessors.Count; imageProcessorIndex++)
{
var imageProcessor = imageProcessors[imageProcessorIndex];
var sourceBitmap = imageProcessor.CanRenderAtPreviewSize
? thumbnailSizedSourceBitmap
: thumbnailSizedSourceBitmap;// fullSizedSourceBitmap;
var taskIndex = imageProcessorIndex % batchTasks.Length;
batchTasks[taskIndex] = batchTasks[taskIndex].ContinueWith(_ =>
{
return(thumbnailRenderers[taskIndex].RenderAsync(sourceBitmap, imageProcessor));
}, TaskContinuationOptions.ExecuteSynchronously);
}
await Task.WhenAll(batchTasks).ConfigureAwait(false);
}
private async void OnPageLoaded(object sender, RoutedEventArgs e)
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
var file = await StorageFile.GetFileFromApplicationUriAsync(new System.Uri("ms-appx:///Assets/defaultImage.jpg"));
var storageFileImageSource = new StorageFileImageSource(file);
var asyncImageResource = storageFileImageSource as IAsyncImageResource;
var imageResource = await asyncImageResource.LoadAsync();
m_imageSize = imageResource.ImageSize;
var sepiaEffect = new Lumia.Imaging.Artistic.SepiaEffect(storageFileImageSource);
SoftwareBitmapRenderer softwareBitmapRenderer = new SoftwareBitmapRenderer(sepiaEffect);
m_sepiaEffectSoftwareBitmap = await softwareBitmapRenderer.RenderAsync();
m_canvasControl.Invalidate();
}
private async void OnPageLoaded(object sender, RoutedEventArgs e)
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
var file = await StorageFile.GetFileFromApplicationUriAsync(new System.Uri("ms-appx:///Assets/defaultImage.jpg"));
var storageFileImageSource = new StorageFileImageSource(file);
var asyncImageResource = storageFileImageSource as IAsyncImageResource;
var imageResource = await asyncImageResource.LoadAsync();
m_imageSize = imageResource.ImageSize;
var sepiaEffect = new Lumia.Imaging.Artistic.SepiaEffect(storageFileImageSource);
SoftwareBitmapRenderer softwareBitmapRenderer = new SoftwareBitmapRenderer(sepiaEffect);
m_sepiaEffectSoftwareBitmap = await softwareBitmapRenderer.RenderAsync();
m_canvasControl.Invalidate();
}
private async Task <SoftwareBitmap> LoadPhotoInternalAsync(IImageProvider unnormalizedSource)
{
DisposableHelper.TryDisposeAndSetToNull(ref m_source);
var info = await unnormalizedSource.GetInfoAsync().AsTask().ConfigureAwait(false);
var unnormalizedSourceSize = info.ImageSize;
if ((uint)unnormalizedSourceSize.Width == 0 || (uint)unnormalizedSourceSize.Height == 0)
{
throw new ArgumentException("Image source appears to be zero sized.");
}
// Normalize source bitmap to ~5 MP
m_sourceSize = NormalizeSourceSize(unnormalizedSourceSize);
using (var bitmapRenderer = new SoftwareBitmapRenderer(unnormalizedSource))
{
bitmapRenderer.Size = m_sourceSize;
bitmapRenderer.OutputOption = OutputOption.PreserveAspectRatio;
bitmapRenderer.RenderOptions = RenderOptions.Cpu;
var normalizedSourceBitmap = await bitmapRenderer.RenderAsync().AsTask().ConfigureAwait(false);
m_source = new SoftwareBitmapImageSource(normalizedSourceBitmap);
}
using (var bitmapRenderer = new SoftwareBitmapRenderer(m_source))
{
bitmapRenderer.Size = PreviewSize;
bitmapRenderer.OutputOption = OutputOption.PreserveAspectRatio;
bitmapRenderer.RenderOptions = RenderOptions.Cpu;
return(await bitmapRenderer.RenderAsync().AsTask().ConfigureAwait(false));
}
}
public async Task UpdateThumbnailsAsync()
{
#if DEBUG
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
#endif
var fullSizedSourceBitmap = ((SoftwareBitmapImageSource)m_source).SoftwareBitmap;
SoftwareBitmap thumbnailSizedSourceBitmap;
// Some image processors can render at thumbnail resolution. Prepare a scaled down source for them.
using (var thumbnailSourceRenderer = new SoftwareBitmapRenderer(m_source))
{
thumbnailSourceRenderer.Size = ThumbnailSize;
thumbnailSourceRenderer.OutputOption = OutputOption.PreserveAspectRatio;
thumbnailSizedSourceBitmap = await thumbnailSourceRenderer.RenderAsync().AsTask().ConfigureAwait(false);
}
var imageProcessors = await m_createImageProcessorsTask.ConfigureAwait(false);
var batchTasks = Enumerable.Repeat((Task)Task.FromResult(false), 4).ToArray();
var thumbnailRenderers = new ThumbnailRenderer[batchTasks.Length];
for(int i = 0; i < thumbnailRenderers.Length; ++i)
{
thumbnailRenderers[i] = new ThumbnailRenderer(ThumbnailSize, OnThumbnailComplete);
}
for (int imageProcessorIndex = 0; imageProcessorIndex < imageProcessors.Count; imageProcessorIndex++)
{
var imageProcessor = imageProcessors[imageProcessorIndex];
var sourceBitmap = imageProcessor.CanRenderAtPreviewSize
? thumbnailSizedSourceBitmap
: thumbnailSizedSourceBitmap;// fullSizedSourceBitmap;
var taskIndex = imageProcessorIndex % batchTasks.Length;
batchTasks[taskIndex] = batchTasks[taskIndex].ContinueWith(_ =>
{
return thumbnailRenderers[taskIndex].RenderAsync(sourceBitmap, imageProcessor);
}, TaskContinuationOptions.ExecuteSynchronously);
}
await Task.WhenAll(batchTasks).ConfigureAwait(false);
}
private async Task<SoftwareBitmap> LoadPhotoInternalAsync(IImageProvider unnormalizedSource)
{
DisposableHelper.TryDisposeAndSetToNull(ref m_source);
var info = await unnormalizedSource.GetInfoAsync().AsTask().ConfigureAwait(false);
var unnormalizedSourceSize = info.ImageSize;
if ((uint)unnormalizedSourceSize.Width == 0 || (uint)unnormalizedSourceSize.Height == 0)
{
throw new ArgumentException("Image source appears to be zero sized.");
}
// Normalize source bitmap to ~5 MP
m_sourceSize = NormalizeSourceSize(unnormalizedSourceSize);
using(var bitmapRenderer = new SoftwareBitmapRenderer(unnormalizedSource))
{
bitmapRenderer.Size = m_sourceSize;
bitmapRenderer.OutputOption = OutputOption.PreserveAspectRatio;
bitmapRenderer.RenderOptions = RenderOptions.Cpu;
var normalizedSourceBitmap = await bitmapRenderer.RenderAsync().AsTask().ConfigureAwait(false);
m_source = new SoftwareBitmapImageSource(normalizedSourceBitmap);
}
using(var bitmapRenderer = new SoftwareBitmapRenderer(m_source))
{
bitmapRenderer.Size = PreviewSize;
bitmapRenderer.OutputOption = OutputOption.PreserveAspectRatio;
bitmapRenderer.RenderOptions = RenderOptions.Cpu;
return await bitmapRenderer.RenderAsync().AsTask().ConfigureAwait(false);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="BarcodeWriterSoftwareBitmap"/> class.
/// </summary>
public BarcodeWriterSoftwareBitmap()
{
Renderer = new SoftwareBitmapRenderer();
}