public static async Task <Rect> GetDrawArea(IImageProvider source, InkCanvas canvas)
{
var image = source;
Size imageSize;
if (image is IImageResource)
{
imageSize = ((IImageResource)image).ImageSize;
}
else if (image is IAsyncImageResource)
{
imageSize = (await((IAsyncImageResource)image).LoadAsync()).ImageSize;
}
else
{
using (var renderer = new BitmapRenderer(image))
{
var tempBmp = await renderer.RenderAsync();
imageSize = tempBmp.Dimensions;
}
}
return(FitWithinWhilePreservingAspectRatio(new Rect(0, 0, imageSize.Width, imageSize.Height), new Rect(0, 0, canvas.ActualWidth, canvas.ActualHeight), true));
}
public async Task GetNewFrameAndApplyEffect(IBuffer frameBuffer, Size frameSize)
{
if (_semaphore.WaitOne(500))
{
var scanlineByteSize = (uint)frameSize.Width * 4; // 4 bytes per pixel in BGRA888 mode
var bitmap = new Bitmap(frameSize, ColorMode.Bgra8888, scanlineByteSize, frameBuffer);
if (_filterEffect != null)
{
var renderer = new BitmapRenderer(_filterEffect, bitmap);
await renderer.RenderAsync();
}
else if (_customEffect != null)
{
var renderer = new BitmapRenderer(_customEffect, bitmap);
await renderer.RenderAsync();
}
else
{
var renderer = new BitmapRenderer(_cameraPreviewImageSource, bitmap);
await renderer.RenderAsync();
}
_semaphore.Release();
}
}
public async Task GetNewFrameAndApplyEffect(IBuffer frameBuffer, Size frameSize)
{
if (_semaphore.WaitOne(500))
{
_cameraPreviewImageSource.InvalidateLoad();
var scanlineByteSize = (uint)frameSize.Width * 4; // 4 bytes per pixel in BGRA888 mode
var bitmap = new Bitmap(frameSize, ColorMode.Bgra8888, scanlineByteSize, frameBuffer);
if (_filterEffect != null)
{
var renderer = new BitmapRenderer(_filterEffect, bitmap);
await renderer.RenderAsync();
}
else if (_customEffect != null)
{
var renderer = new BitmapRenderer(_customEffect, bitmap);
await renderer.RenderAsync();
}
else
{
var renderer = new BitmapRenderer(_cameraPreviewImageSource, bitmap);
await renderer.RenderAsync();
}
_semaphore.Release();
}
}
public async Task GetNewFrameAndApplyEffect(IBuffer frameBuffer, Size frameSize)
{
if (_semaphore.WaitOne(500))
{
var scanlineByteSize = (uint)frameSize.Width * 4; // 4 bytes per pixel in BGRA888 mode
var bitmap = new Bitmap(frameSize, ColorMode.Bgra8888, scanlineByteSize, frameBuffer);
try
{
if (_blendEffect != null)
{
_blendEffect.GlobalAlpha = GlobalAlpha;
var renderer = new BitmapRenderer(_blendEffect, bitmap);
await renderer.RenderAsync();
}
else
{
var renderer = new BitmapRenderer(_cameraPreviewImageSource, bitmap);
await renderer.RenderAsync();
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("RealtimeBlendDemo.GetNewFrameAndApplyEffect(): "
+ ex.ToString());
}
_semaphore.Release();
}
}
private static async Task<Curve[]> LoadRgbLookupCurves(string path, double outputGain, int outputOffset)
{
var storageFile = await Package.Current.InstalledLocation.GetFileAsync(path).AsTask().ConfigureAwait(false);
using (var storageFileImageSource = new StorageFileImageSource(storageFile))
using (var renderer = new BitmapRenderer(storageFileImageSource) { OutputOption = OutputOption.PreserveAspectRatio })
using (var tableBitmap = await renderer.RenderAsync().AsTask().ConfigureAwait(false))
{
var redCurve = new Curve();
var greenCurve = new Curve();
var blueCurve = new Curve();
var redValues = new Point[256];
var greenValues = new Point[256];
var blueValues = new Point[256];
var table = tableBitmap.Buffers[0].Buffer.ToArray();
for (int i = 0; i < 256; ++i)
{
redValues[i] = new Point(i,Math.Min(255, Math.Max(0, (int)(table[i * 4 + 2] * outputGain + outputOffset))));
greenValues[i] = new Point(i,Math.Min(255, Math.Max(0, (int)(table[i * 4 + 1] * outputGain + outputOffset))));
blueValues[i] = new Point(i,Math.Min(255, Math.Max(0, (int)(table[i * 4 + 0] * outputGain + outputOffset))));
}
redCurve.Points = redValues;
greenCurve.Points = greenValues;
blueCurve.Points = blueValues;
return new[] { redCurve, greenCurve, blueCurve };
}
}
private static async Task <Curve[]> LoadRgbLookupCurves(string path, double outputGain, int outputOffset)
{
var storageFile = await Package.Current.InstalledLocation.GetFileAsync(path).AsTask().ConfigureAwait(false);
using (var storageFileImageSource = new StorageFileImageSource(storageFile))
using (var renderer = new BitmapRenderer(storageFileImageSource)
{
OutputOption = OutputOption.PreserveAspectRatio
})
using (var tableBitmap = await renderer.RenderAsync().AsTask().ConfigureAwait(false))
{
var redCurve = new Curve();
var greenCurve = new Curve();
var blueCurve = new Curve();
var redValues = new Point[256];
var greenValues = new Point[256];
var blueValues = new Point[256];
var table = tableBitmap.Buffers[0].Buffer.ToArray();
for (int i = 0; i < 256; ++i)
{
redValues[i] = new Point(i, Math.Min(255, Math.Max(0, (int)(table[i * 4 + 2] * outputGain + outputOffset))));
greenValues[i] = new Point(i, Math.Min(255, Math.Max(0, (int)(table[i * 4 + 1] * outputGain + outputOffset))));
blueValues[i] = new Point(i, Math.Min(255, Math.Max(0, (int)(table[i * 4 + 0] * outputGain + outputOffset))));
}
redCurve.Points = redValues;
greenCurve.Points = greenValues;
blueCurve.Points = blueValues;
return(new[] { redCurve, greenCurve, blueCurve });
}
}
public LookupImage(string name)
{
m_loadingTask = Task.Run(async() =>
{
var file = await Package.Current.InstalledLocation.GetFileAsync(name).AsTask().ConfigureAwait(false);
using (var imageSource = new StorageFileImageSource(file))
{
var info = await imageSource.GetInfoAsync().AsTask().ConfigureAwait(false);
var landscapeBitmap = new Bitmap(info.ImageSize, ColorMode.Bgra8888);
var portraitBitmap = new Bitmap(new Size(info.ImageSize.Height, info.ImageSize.Width), ColorMode.Bgra8888);
using (var renderer = new BitmapRenderer(imageSource, landscapeBitmap, OutputOption.Stretch))
{
renderer.RenderOptions = RenderOptions.Cpu;
m_landscapeSource = new BitmapImageSource(await renderer.RenderAsync().AsTask().ConfigureAwait(false));
}
using (var renderer = new BitmapRenderer(m_landscapeSource.Rotate(90), portraitBitmap, OutputOption.Stretch))
{
renderer.RenderOptions = RenderOptions.Cpu;
m_portraitSource = new BitmapImageSource(await renderer.RenderAsync().AsTask().ConfigureAwait(false));
}
}
});
}
private void Button_Click(object sender, RoutedEventArgs e)
{
try
{
PhotoChooserTask task = new PhotoChooserTask();
task.Completed += async (s, res) =>
{
if (res.TaskResult == TaskResult.OK)
{
using( var source = new StreamImageSource(res.ChosenPhoto))
using(var renderer = new BitmapRenderer(source,input))
{
await renderer.RenderAsync();
}
if(manager != null)
{
manager.Dispose();
manager = null;
}
manager = new PipelineManager.Manager.PipelineManager(picture);
GeneratePicture();
}
};
task.Show();
}
catch (Exception)
{
}
}
/// <summary>
/// Creates an image source of the overlay, specifying the size of the background image it will be used on. The image source will be sized and cropped correctly.
/// </summary>
/// <param name="backgroundSize">The size of the background image.</param>
/// <returns>The constructed overlay image source.</returns>
public async Task <IImageProvider> CreateAsync(Size backgroundSize)
{
var uriAndRotation = GetUriAndRotation(backgroundSize);
var file = await Windows.Storage.StorageFile.GetFileFromApplicationUriAsync(uriAndRotation.Item1).AsTask().ConfigureAwait(false);
var overlayImageSource = new StorageFileImageSource(file);
var overlayImageInfo = await overlayImageSource.GetInfoAsync().AsTask().ConfigureAwait(false);
var overlayImageAspectRatio = overlayImageInfo.ImageSize.Width / overlayImageInfo.ImageSize.Height;
int overlayImageScaledWidth = (int)overlayImageInfo.ImageSize.Width;
int overlayImageScaledHeight = (int)overlayImageInfo.ImageSize.Height;
if ((int)backgroundSize.Width > (int)backgroundSize.Height)
{
overlayImageScaledHeight = (int)(backgroundSize.Width / overlayImageAspectRatio);
overlayImageScaledWidth = (int)(backgroundSize.Width);
}
else if ((int)backgroundSize.Width < (int)backgroundSize.Height)
{
overlayImageScaledWidth = (int)(backgroundSize.Height * overlayImageAspectRatio);
overlayImageScaledHeight = (int)(backgroundSize.Height);
}
var renderer = new BitmapRenderer(overlayImageSource)
{
Size = new Size(overlayImageScaledWidth, overlayImageScaledHeight)
};
var overlayBitmap = await renderer.RenderAsync().AsTask().ConfigureAwait(false);
var overlayBitmapImageSource = new BitmapImageSource(overlayBitmap);
return(Crop(overlayBitmapImageSource, overlayImageInfo, (int)overlayImageInfo.ImageSize.Width, (int)overlayImageInfo.ImageSize.Height));
}
private async Task GetNewFrameAndApplyChosenEffectAsync(IBuffer buffer)
{
var lineSize = (uint)frameSize.Width * 4;
var bitmap = new Bitmap(frameSize, ColorMode.Bgra8888, lineSize, buffer);
IFilter[] filters;
if (activeFilter == null)
{
filters = new IFilter[0];
}
else
{
filters = new IFilter[]
{
activeFilter
};
}
using (FilterEffect fe = new FilterEffect(cameraPreviewImageSource)
{
Filters = filters
})
using (BitmapRenderer renderer = new BitmapRenderer(fe, bitmap))
{
await renderer.RenderAsync();
}
}
/// <summary>
/// Renders a thumbnail of requested size from the center of the current image with
/// filters applied.
/// </summary>
/// <param name="side">Side length of square thumbnail to render</param>
/// <returns>Rendered thumbnail bitmap</returns>
public async Task <Bitmap> RenderThumbnailBitmapAsync(int side)
{
Windows.Foundation.Size dimensions = await GetImageSizeAsync();
int minSide = (int)Math.Min(dimensions.Width, dimensions.Height);
Windows.Foundation.Rect rect = new Windows.Foundation.Rect()
{
Width = minSide,
Height = minSide,
X = (dimensions.Width - minSide) / 2,
Y = (dimensions.Height - minSide) / 2,
};
_components.Add(new CropFilter(rect));
Bitmap bitmap = new Bitmap(new Windows.Foundation.Size(side, side), ColorMode.Ayuv4444);
using (BufferImageSource source = new BufferImageSource(_buffer))
using (FilterEffect effect = new FilterEffect(source)
{
Filters = _components
})
using (BitmapRenderer renderer = new BitmapRenderer(effect, bitmap, OutputOption.Stretch))
{
await renderer.RenderAsync();
}
_components.RemoveAt(_components.Count - 1);
return(bitmap);
}
public void Process(Bitmap input, Bitmap output, TimeSpan time)
{
var effect = new FilterEffect();
effect.Filters = new IFilter[]{ new WatercolorFilter() };
effect.Source = new BitmapImageSource(input);
var renderer = new BitmapRenderer(effect, output);
renderer.RenderAsync().AsTask().Wait(); // Async calls must run sync inside Process()
}
public async Task CS_W_MediaReader_LumiaEffect()
{
using (var mediaReader = await MediaReader.CreateFromPathAsync("ms-appx:///car.mp4", AudioInitialization.Deselected, VideoInitialization.Nv12))
using (var mediaResult = await mediaReader.VideoStream.ReadAsync())
{
var streamProperties = mediaReader.VideoStream.GetCurrentStreamProperties();
int width = (int)streamProperties.Width;
int height = (int)streamProperties.Height;
Assert.AreEqual(320, width);
Assert.AreEqual(240, height);
var inputSample = (MediaSample2D)mediaResult.Sample;
Assert.AreEqual(MediaSample2DFormat.Nv12, inputSample.Format);
Assert.AreEqual(320, inputSample.Width);
Assert.AreEqual(240, inputSample.Height);
using (var outputSample = new MediaSample2D(MediaSample2DFormat.Nv12, width, height))
{
Assert.AreEqual(MediaSample2DFormat.Nv12, outputSample.Format);
Assert.AreEqual(320, outputSample.Width);
Assert.AreEqual(240, outputSample.Height);
using (var inputBuffer = inputSample.LockBuffer(BufferAccessMode.Read))
using (var outputBuffer = outputSample.LockBuffer(BufferAccessMode.Write))
{
// Wrap MediaBuffer2D in Bitmap
var inputBitmap = new Bitmap(
new Size(width, height),
ColorMode.Yuv420Sp,
new uint[] { inputBuffer.Planes[0].Pitch, inputBuffer.Planes[1].Pitch },
new IBuffer[] { inputBuffer.Planes[0].Buffer, inputBuffer.Planes[1].Buffer }
);
var outputBitmap = new Bitmap(
new Size(width, height),
ColorMode.Yuv420Sp,
new uint[] { outputBuffer.Planes[0].Pitch, outputBuffer.Planes[1].Pitch },
new IBuffer[] { outputBuffer.Planes[0].Buffer, outputBuffer.Planes[1].Buffer }
);
// Apply effect
var effect = new FilterEffect();
effect.Filters = new IFilter[] { new WatercolorFilter() };
effect.Source = new BitmapImageSource(inputBitmap);
var renderer = new BitmapRenderer(effect, outputBitmap);
await renderer.RenderAsync();
}
// Save the file
var folder = await KnownFolders.PicturesLibrary.CreateFolderAsync("MediaCaptureReaderTests", CreationCollisionOption.OpenIfExists);
var file = await folder.CreateFileAsync("CS_W_MediaReader_TestLumiaEffect.jpg", CreationCollisionOption.ReplaceExisting);
await outputSample.SaveToFileAsync(file, ImageCompression.Jpeg);
Logger.LogMessage("Saved {0}", file.Path);
}
}
}
public void Process(Bitmap input, Bitmap output, TimeSpan time)
{
var effect = new FilterEffect();
effect.Filters = new IFilter[] { new WatercolorFilter() };
effect.Source = new BitmapImageSource(input);
var renderer = new BitmapRenderer(effect, output);
renderer.RenderAsync().AsTask().Wait(); // Async calls must run sync inside Process()
}
/// <summary>
/// Renders the IImageProvider into a Bitmap. If the passed Bitmap is non-null, and it matches the passed size and color mode, it will be reused. Otherwise this method creates a new Bitmap.
/// </summary>
/// <param name="imageProvider">The image provider to render the image content of.</param>
/// <param name="bitmap">The Bitmap to reuse, if possible. If null is passed, a new Bitmap is created.</param>
/// <param name="size">The desired size of the rendered image.</param>
/// <param name="outputOption">Specifies how to fit the image into the rendered rectangle, if the aspect ratio differs.</param>
/// <returns>A task resulting in either the reused Bitmap, or a new one if necessary.</returns>
public static async Task<Bitmap> GetBitmapAsync(this IImageProvider imageProvider, Bitmap bitmap, Size size, ColorMode colorMode, OutputOption outputOption)
{
if (bitmap == null || bitmap.Dimensions != size || bitmap.ColorMode != colorMode)
{
bitmap = new Bitmap(size, colorMode);
}
using (var renderer = new BitmapRenderer(imageProvider, bitmap, outputOption))
{
return await renderer.RenderAsync().AsTask().ConfigureAwait(false);
}
}
/// <summary>
/// Renders the IImageProvider into a Bitmap. If the passed Bitmap is non-null, and it matches the passed size and color mode, it will be reused. Otherwise this method creates a new Bitmap.
/// </summary>
/// <param name="imageProvider">The image provider to render the image content of.</param>
/// <param name="bitmap">The Bitmap to reuse, if possible. If null is passed, a new Bitmap is created.</param>
/// <param name="size">The desired size of the rendered image.</param>
/// <param name="outputOption">Specifies how to fit the image into the rendered rectangle, if the aspect ratio differs.</param>
/// <returns>A task resulting in either the reused Bitmap, or a new one if necessary.</returns>
public static async Task <Bitmap> GetBitmapAsync(this IImageProvider imageProvider, Bitmap bitmap, Size size, ColorMode colorMode, OutputOption outputOption)
{
if (bitmap == null || bitmap.Dimensions != size || bitmap.ColorMode != colorMode)
{
bitmap = new Bitmap(size, colorMode);
}
using (var renderer = new BitmapRenderer(imageProvider, bitmap, outputOption))
{
return(await renderer.RenderAsync().AsTask().ConfigureAwait(false));
}
}
public static async Task <IImageProvider> CreateImageSourceFromFile(StorageFile file)
{
//method needed, workaround for exif orientation bug
using (var source = new StorageFileImageSource(file))
using (var renderer = new BitmapRenderer(source)
{
RenderOptions = RenderOptions.Cpu
})
{
var bitmap = await renderer.RenderAsync();
return(new BitmapImageSource(bitmap));
}
}
public async Task GetImageProviderReturnsExpectedResultWhenCreatedWithLambda()
{
var backgroundImage = new ColorImageSource(BackgroundLayerSize, Colors.AliceBlue);
var backgroundLayer = new Layer(LayerStyle.Normal(), backgroundImage, BackgroundLayerSize);
var layer = new AdjustmentLayer(LayerStyle.Normal(), context => CreateTestEffect(context));
var imageProvider = layer.GetImageProvider(CreateFakeLayerContext(backgroundLayer, backgroundImage, layer));
((IImageConsumer)await imageProvider.AsTask()).Source = backgroundImage;
Assert.IsTrue(imageProvider.IsSynchronous);
Assert.IsNotNull(imageProvider.Result);
var bitmapRenderer = new BitmapRenderer(imageProvider.Result);
var bitmap = await bitmapRenderer.RenderAsync();
Assert.AreEqual(BackgroundLayerSize, bitmap.Dimensions);
}
public async Task RenderWithBackgroundPassedInConstructor()
{
var backgroundImage = new ColorImageSource(new Size(100, 100), Color.FromArgb(255, 128, 128, 128));
var layerList = new LayerList(backgroundImage, backgroundImage.ImageSize, new Layer[]
{
new Layer(LayerStyle.Add(), context => new ColorImageSource(context.BackgroundLayer.ImageSize, Color.FromArgb(255, 32, 16, 8)))
});
var layersEffect = await layerList.ToImageProvider().AsTask();
var bitmapRenderer = new BitmapRenderer(layersEffect);
var renderedBitmap = await bitmapRenderer.RenderAsync();
var pixels = renderedBitmap.Buffers[0].Buffer.ToArray();
Assert.AreEqual(136, pixels[0]);
Assert.AreEqual(144, pixels[1]);
Assert.AreEqual(160, pixels[2]);
Assert.AreEqual(255, pixels[3]);
}
/// <summary>
/// Creates an image source of the overlay, specifying the size of the background image it will be used on. The image source will be sized and cropped correctly.
/// </summary>
/// <param name="backgroundSize">The size of the background image.</param>
/// <returns>The constructed overlay image source.</returns>
public async Task<IImageProvider> CreateAsync(Size backgroundSize)
{
var uriAndRotation = GetUriAndRotation(backgroundSize);
var file = await Windows.Storage.StorageFile.GetFileFromApplicationUriAsync(uriAndRotation.Item1).AsTask().ConfigureAwait(false);
var overlayImageSource = new StorageFileImageSource(file);
var overlayImageInfo = await overlayImageSource.GetInfoAsync().AsTask().ConfigureAwait(false);
var overlayImageAspectRatio = overlayImageInfo.ImageSize.Width / overlayImageInfo.ImageSize.Height;
int overlayImageScaledWidth = (int)overlayImageInfo.ImageSize.Width;
int overlayImageScaledHeight = (int)overlayImageInfo.ImageSize.Height;
if ((int)backgroundSize.Width > (int)backgroundSize.Height)
{
overlayImageScaledHeight = (int)(backgroundSize.Width / overlayImageAspectRatio);
overlayImageScaledWidth = (int)(backgroundSize.Width);
}
else if ((int)backgroundSize.Width < (int)backgroundSize.Height)
{
overlayImageScaledWidth = (int)(backgroundSize.Height * overlayImageAspectRatio);
overlayImageScaledHeight = (int)(backgroundSize.Height);
}
var renderer = new BitmapRenderer(overlayImageSource) { Size = new Size(overlayImageScaledWidth, overlayImageScaledHeight) };
var overlayBitmap = await renderer.RenderAsync().AsTask().ConfigureAwait(false);
var overlayBitmapImageSource = new BitmapImageSource(overlayBitmap);
return Crop(overlayBitmapImageSource, overlayImageInfo, (int)overlayImageInfo.ImageSize.Width, (int)overlayImageInfo.ImageSize.Height);
}
public async Task RenderWithBackgroundAndDifferentRenderSizePassedInToImageProvider()
{
var layerList = new LayerList(new Layer[]
{
new Layer(LayerStyle.Add(), context => new ColorImageSource(context.BackgroundLayer.ImageSize, Color.FromArgb(255,32,16,8)))
});
var backgroundImage = new ColorImageSource(new Size(100, 100), Color.FromArgb(255, 128, 128, 128));
var layersEffect = await layerList.ToImageProvider(backgroundImage, backgroundImage.ImageSize, new Size(50,50)).AsTask();
var bitmap = new Bitmap(new Size(50,50), ColorMode.Bgra8888);
var bitmapRenderer = new BitmapRenderer(layersEffect, bitmap);
var renderedBitmap = await bitmapRenderer.RenderAsync();
var pixels = bitmap.Buffers[0].Buffer.ToArray();
Assert.AreEqual(136, pixels[0]);
Assert.AreEqual(144, pixels[1]);
Assert.AreEqual(160, pixels[2]);
Assert.AreEqual(255, pixels[3]);
}
public async Task GetNewFrameAndApplyEffect(IBuffer frameBuffer, Size frameSize)
{
if (_semaphore.WaitOne(500))
{
var scanlineByteSize = (uint)frameSize.Width * 4; // 4 bytes per pixel in BGRA888 mode
var bitmap = new Bitmap(frameSize, ColorMode.Bgra8888, scanlineByteSize, frameBuffer);
try
{
if (_blendEffect != null)
{
_blendEffect.GlobalAlpha = GlobalAlpha;
var renderer = new BitmapRenderer(_blendEffect, bitmap);
await renderer.RenderAsync();
}
else
{
var renderer = new BitmapRenderer(_cameraPreviewImageSource, bitmap);
await renderer.RenderAsync();
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("RealtimeBlendDemo.GetNewFrameAndApplyEffect(): "
+ ex.ToString());
}
_semaphore.Release();
}
}
public async Task GetNewFrameAndApplyEffect(IBuffer frameBuffer, Size frameSize)
{
if (_semaphore.WaitOne(500))
{
_cameraPreviewImageSource.InvalidateLoad();
var scanlineByteSize = (uint)frameSize.Width * 4; // 4 bytes per pixel in BGRA888 mode
var bitmap = new Bitmap(frameSize, ColorMode.Bgra8888, scanlineByteSize, frameBuffer);
if (_effectIndex >= 0 && _effectIndex < EffectGroup.Count)
{
AbstractFilter filter = EffectGroup[_effectIndex];
await filter.RenderPreview(bitmap);
}
else
{
var renderer = new BitmapRenderer(_cameraPreviewImageSource, bitmap);
await renderer.RenderAsync();
}
_semaphore.Release();
}
}
public async Task GetImageProviderReturnsExpectedResultWhenCreatedWithLambdaReturningAsynchronousImageProvider()
{
var backgroundImage = new ColorImageSource(BackgroundLayerSize, Colors.AliceBlue);
var backgroundLayer = new Layer(LayerStyle.Normal(), backgroundImage, BackgroundLayerSize);
var layer = new AdjustmentLayer(LayerStyle.Normal(), context => CreateTestEffectAsync(context));
var imageProvider = layer.GetImageProvider(CreateFakeLayerContext(backgroundLayer, backgroundImage, layer));
((IImageConsumer)await imageProvider.AsTask()).Source = backgroundImage;
Assert.IsFalse(imageProvider.WasSynchronous);
var imageProviderResult = await imageProvider.AsTask();
Assert.IsNotNull(imageProviderResult);
var bitmapRenderer = new BitmapRenderer(imageProvider.Result);
var bitmap = await bitmapRenderer.RenderAsync();
Assert.AreEqual(BackgroundLayerSize, bitmap.Dimensions);
}
/// <summary>
/// Renders a thumbnail of requested size from the center of the current image with
/// filters applied.
/// </summary>
/// <param name="side">Side length of square thumbnail to render</param>
/// <returns>Rendered thumbnail bitmap</returns>
public async Task<Bitmap> RenderThumbnailBitmapAsync(int side)
{
Windows.Foundation.Size dimensions = await GetImageSizeAsync();
int minSide = (int)Math.Min(dimensions.Width, dimensions.Height);
Windows.Foundation.Rect rect = new Windows.Foundation.Rect()
{
Width = minSide,
Height = minSide,
X = (dimensions.Width - minSide) / 2,
Y = (dimensions.Height - minSide) / 2,
};
_components.Add(new CropFilter(rect));
Bitmap bitmap = new Bitmap(new Windows.Foundation.Size(side, side), ColorMode.Ayuv4444);
using (BufferImageSource source = new BufferImageSource(_buffer))
using (FilterEffect effect = new FilterEffect(source) { Filters = _components })
using (BitmapRenderer renderer = new BitmapRenderer(effect, bitmap, OutputOption.Stretch))
{
await renderer.RenderAsync();
}
_components.RemoveAt(_components.Count - 1);
return bitmap;
}
async Task createLRPicture(IImageProvider source, ImageProviderInfo info)
{
HR_LR_Factor = 4096 / Math.Max(info.ImageSize.Width, info.ImageSize.Height);
if (HR_LR_Factor > 1) HR_LR_Factor = 1;
InputLR = new WriteableBitmap(
(int)(HR_LR_Factor * info.ImageSize.Width),
(int)(HR_LR_Factor * info.ImageSize.Height)
);
int LRblocksize = 4096/4;
double blocksize = LRblocksize / HR_LR_Factor;
var bitmapLR =new Bitmap(
new Size(InputLR.PixelWidth, InputLR.PixelHeight),
ColorMode.Bgra8888,
(uint)(4*InputLR.PixelWidth),
InputLR.Pixels.AsBuffer());
var tmpBitmp = new WriteableBitmap(LRblocksize, LRblocksize);
for (int y = 0; y < 4; ++y)
{
var tmpheight =(int) Math.Min((double)LRblocksize, InputLR.PixelHeight - y * LRblocksize);
if (tmpheight<=0) break;
for (int x = 0; x < 4; ++x)
{
var tmpWidth = (int)Math.Min((double)LRblocksize, InputLR.PixelWidth - x * LRblocksize);
if (tmpWidth <= 0) break;
var tmp = new Bitmap(bitmapLR,
new Rect((double)x * LRblocksize, (double)y * LRblocksize,
tmpWidth,
tmpheight
));
using (var filter = new FilterEffect(source))
using (var render = new BitmapRenderer(filter, tmp))
{
filter.Filters = new IFilter[] { new ReframingFilter(new Rect((double)x * blocksize, (double)y * blocksize,
(double)blocksize,
(double)blocksize),
0) };
await render.RenderAsync();
}
}
}
}
public virtual async Task RenderPreview(Bitmap bitmap)
{
try
{
Debug.WriteLine(DebugTag + Name + ": Rendering Preview()");
using (var renderer = new BitmapRenderer(_realTimeEffect, bitmap))
{
await renderer.RenderAsync();
}
Debug.WriteLine(DebugTag + Name + ": RenderPreview Done()");
}
catch (Exception e)
{
Debug.WriteLine(DebugTag + Name + ": RenderPreview(): " + e.Message);
}
}