void DrawDrawingSurface()
{
++drawCount;
using (var ds = CanvasComposition.CreateDrawingSession(drawingSurface))
{
ds.Clear(Colors.Transparent);
var rect = new Rect(new Point(2, 2), (drawingSurface.Size.ToVector2() - new Vector2(4, 4)).ToSize());
ds.FillRoundedRectangle(rect, 15, 15, Colors.LightBlue);
ds.DrawRoundedRectangle(rect, 15, 15, Colors.Gray, 2);
ds.DrawText("This is a composition drawing surface", rect, Colors.Black, new CanvasTextFormat()
{
FontFamily = "Comic Sans MS",
FontSize = 32,
WordWrapping = CanvasWordWrapping.WholeWord,
VerticalAlignment = CanvasVerticalAlignment.Center,
HorizontalAlignment = CanvasHorizontalAlignment.Center
});
ds.DrawText("Draws: " + drawCount, rect, Colors.Black, new CanvasTextFormat()
{
FontSize = 10,
VerticalAlignment = CanvasVerticalAlignment.Bottom,
HorizontalAlignment = CanvasHorizontalAlignment.Center
});
}
}
#pragma warning disable 1998
public async Task Draw(CompositionGraphicsDevice device, Object drawingLock, CompositionDrawingSurface surface, Size size)
{
using (var ds = CanvasComposition.CreateDrawingSession(surface)) {
ds.Clear(Colors.Transparent);
ds.FillCircle(new Vector2(_radius, _radius), _radius, _color);
}
}
CompositionDrawingSurface ApplyBlurEffect(CanvasBitmap bitmap, Windows.UI.Composition.CompositionGraphicsDevice device, Size sizeTarget)
{
GaussianBlurEffect blurEffect = new GaussianBlurEffect()
{
Source = bitmap,
BlurAmount = 20.0f,
BorderMode = EffectBorderMode.Hard,
};
float fDownsample = .3f;
Size sizeSource = bitmap.Size;
if (sizeTarget == Size.Empty)
{
sizeTarget = sizeSource;
}
sizeTarget = new Size(sizeTarget.Width * fDownsample, sizeTarget.Height * fDownsample);
CompositionDrawingSurface blurSurface = device.CreateDrawingSurface(sizeTarget, DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (var ds = CanvasComposition.CreateDrawingSession(blurSurface))
{
Rect destination = new Rect(0, 0, sizeTarget.Width, sizeTarget.Height);
ds.Clear(Windows.UI.Color.FromArgb(255, 255, 255, 255));
ds.DrawImage(blurEffect, destination, new Rect(0, 0, sizeSource.Width, sizeSource.Height));
}
return(blurSurface);
}
/// <summary>
/// Redraws the mask surface with the given size and geometry
/// </summary>
/// <param name="surface">CompositionDrawingSurface</param>
/// <param name="size">Size ofthe Mask Surface</param>
/// <param name="geometry">Geometry of the Mask Surface</param>
/// <returns>Task</returns>
public Task RedrawMaskSurfaceAsync(CompositionDrawingSurface surface, Size size, CanvasGeometry geometry)
{
return(Task.Run(() =>
{
//
// Since the drawing is done asynchronously and multiple threads could
// be trying to get access to the device/surface at the same time, we need
// to do any device/surface work under a lock.
//
lock (_drawingLock)
{
// Render the mask to the surface
using (var session = CanvasComposition.CreateDrawingSession(surface))
{
// If the geometry is not null then fill the geometry area
// with white. The rest of the area on the surface will be transparent.
// When this mask is applied to a visual, only the area that is white
// will be visible.
if (geometry != null)
{
session.Clear(Colors.Transparent);
session.FillGeometry(geometry, Colors.White);
}
else
{
// If the geometry is null, then the entire mask should be filled white
// so that the masked visual can be seen completely.
session.Clear(Colors.White);
}
}
}
}));
}
void RenderFrame()
{
if (destinationTarget != null)
{
lock (ResourceLock)
{
var args = new VideoEffectHandlerArgs()
{
InputFrame = sourceTarget,
OutputFrame = destinationTarget,
ID = ID,
Properties = Properties,
Device = CanvasDevice
};
bool effectsAdded = VideoEffectManager.ProcessFrame(args);
using (var ds = CanvasComposition.CreateDrawingSession(DrawingSurface))
{
ds.DrawImage(destinationTarget);
}
}
}
else
{
Container.RunOnUIThread(createDestinationTarget);
}
}
public async Task Draw(CompositionGraphicsDevice device, Object drawingLock, CompositionDrawingSurface surface, Size size)
{
using (var ds = CanvasComposition.CreateDrawingSession(surface)) {
ds.Clear(_backgroundColor);
ds.DrawText(_text, new Rect(0, 0, surface.Size.Width, surface.Size.Height), _textColor, _textFormat);
}
}
public void DrawString(string c)
{
sofar += c;
using (
var drawingSession = CanvasComposition.CreateDrawingSession(drawingSurface,
new Rect(0, 0, ActualWidth, ActualHeight)))
{
CanvasTextFormat tf = new CanvasTextFormat()
{
FontSize = 72
};
float xLoc = 100.0f;
float yLoc = 100.0f;
CanvasTextFormat format = new CanvasTextFormat
{
FontSize = 30.0f,
WordWrapping = CanvasWordWrapping.NoWrap
};
CanvasTextLayout textLayout = new CanvasTextLayout(drawingSession, sofar, format, 0.0f,
0.0f);
Rect theRectYouAreLookingFor = new Rect(xLoc + textLayout.DrawBounds.X,
yLoc + textLayout.DrawBounds.Y, textLayout.DrawBounds.Width, textLayout.DrawBounds.Height);
drawingSession.DrawRectangle(theRectYouAreLookingFor, Colors.Green, 1.0f);
drawingSession.DrawTextLayout(textLayout, xLoc, yLoc, Colors.Yellow);
drawingSession.DrawInk(list);
}
}
void DrawText(CanvasTextLayout textLayout)
{
#region unused
// text drawer method 1 - no anti-aliasing feature
//var layout = new CanvasTextLayout(_device, Text, textformat, (float)Width, (float)Height);
//var geometry = CanvasGeometry.CreateText(layout);
//var compPath = new CompositionPath(geometry);
//var pathGeo = _compositor.CreatePathGeometry(compPath);
// set to container
//var w = _compositor.CreateSpriteShape(pathGeo);
//w.FillBrush = _compositor.CreateColorBrush(Color.FromArgb(0xd7, 0xff, 0xff, 0xff));
//_shape.Shapes.Add(w);
#endregion
// text drawer - with anti-aliasing feature
using var ds = CanvasComposition.CreateDrawingSession(_drawsurface);
ds.Antialiasing = CanvasAntialiasing.Antialiased;
//ds.DrawText(Text, rectext, Color.FromArgb(0xd7, 0xff, 0xff, 0xff), textformat);
ds.DrawTextLayout(textLayout, (float)Width / 2, (float)Height / 2, Color.FromArgb(0xd7, 0xff, 0xff, 0xff));
ds.Flush();
ds.Dispose();
// set to container
var brush = _compositor.CreateSurfaceBrush(_drawsurface);
var sprite = _compositor.CreateSpriteVisual();
sprite.Brush = brush;
sprite.Size = _size;
_shape.Children.InsertAtTop(sprite);
}
public async Task DrawSurface(CompositionDrawingSurface surface, Uri uri, Size size)
{
var canvasDevice = CanvasComposition.GetCanvasDevice(_graphicsDevice);
using (var canvasBitmap = await CanvasBitmap.LoadAsync(canvasDevice, uri))
{
var bitmapSize = canvasBitmap.Size;
//
// Because the drawing is done asynchronously and multiple threads could
// be trying to get access to the device/surface at the same time, we need
// to do any device/surface work under a lock.
//
lock (_drawingLock)
{
Size surfaceSize = size;
if (surfaceSize.IsEmpty)
{
// Resize the surface to the size of the image
CanvasComposition.Resize(surface, bitmapSize);
surfaceSize = bitmapSize;
}
// Draw the image to the surface
using (var session = CanvasComposition.CreateDrawingSession(surface))
{
session.Clear(Windows.UI.Color.FromArgb(0, 0, 0, 0));
session.DrawImage(canvasBitmap, new Rect(0, 0, surfaceSize.Width, surfaceSize.Height), new Rect(0, 0, bitmapSize.Width, bitmapSize.Height));
}
}
}
}
internal void ReDraw(Rect viewPort, float zoom)
{
var toDraw = GetDrawingBoundaries(viewPort);
var scale = _screenScale * zoom;
var rect = ScaleRect(toDraw, scale);
var dpi = BaseCanvasDPI * (float)scale;
try
{
using (var drawingSession = CanvasComposition.CreateDrawingSession(_drawingSurface, rect, dpi))
{
drawingSession.Clear(Colors.White);
foreach (var drawable in _visibleList)
{
drawable.Draw(drawingSession, toDraw);
}
}
}
catch (ArgumentException)
{
/* CanvasComposition.CreateDrawingSession has an internal
* limit on the size of the updateRectInPixels parameter,
* which we don't know, so we can get an ArgumentException
* if there is a lot of extreme zooming and panning
* Therefore, the only solution is to silently catch the
* exception and allow the app to continue
*/
}
}
public void DrawTile(Rect rect, int tileRow, int tileColumn)
{
Color waterColor = Color.FromArgb(255, 172, 199, 242);
Action <CanvasBitmap> drawAction = (CanvasBitmap bitmap) =>
{
lock (sync)
{
using (var drawingSession = CanvasComposition.CreateDrawingSession(drawingSurface, rect))
{
drawingSession.Clear(waterColor);
if (bitmap != null)
{
drawingSession.DrawImage(bitmap);
}
}
}
};
if (TileCache.Tiles.ContainsKey(TileCache.GetTileKey(ZoomLevel, tileColumn, tileRow)))
{
drawAction(TileCache.Tiles[TileCache.GetTileKey(ZoomLevel, tileColumn, tileRow)]);
}
else
{
drawAction(null);
//TODO handle the error case where the load fails
CanvasBitmap.LoadAsync(CanvasDevice.GetSharedDevice(), TileCache.GetTileUri(ZoomLevel, tileColumn, tileRow), 96).AsTask().ContinueWith((bm) =>
{
TileCache.AddImage(ZoomLevel, tileColumn, tileRow, bm.Result);
//redraw the tile once we have the image downloaded
drawAction(bm.Result);
});
}
}
private static async Task <CompositionDrawingSurface> GetCompositionDrawingSurface(Compositor compositor, RenderTargetBitmap renderTargetBitmap)
{
IBuffer pixels = await renderTargetBitmap.GetPixelsAsync();
using (var canvasDevice = new CanvasDevice())
using (CompositionGraphicsDevice graphicsDevice = CanvasComposition.CreateCompositionGraphicsDevice(compositor, canvasDevice))
{
float dpi = DisplayInformation.GetForCurrentView().LogicalDpi;
using (var canvasBitmap = CanvasBitmap.CreateFromBytes(canvasDevice, pixels.ToArray(),
renderTargetBitmap.PixelWidth, renderTargetBitmap.PixelHeight,
DirectXPixelFormat.B8G8R8A8UIntNormalized, dpi))
{
CompositionDrawingSurface surface = graphicsDevice.CreateDrawingSurface(
new Size(renderTargetBitmap.PixelWidth, renderTargetBitmap.PixelHeight),
DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (CanvasDrawingSession session = CanvasComposition.CreateDrawingSession(surface))
{
session.DrawImage(canvasBitmap, 0, 0,
new Rect(0, 0, canvasBitmap.Size.Width, canvasBitmap.Size.Height));
}
return(surface);
}
}
}
/// <summary>
/// Initializes the Composition Brush.
/// </summary>
protected override void OnConnected()
{
base.OnConnected();
// Delay creating composition resources until they're required.
if (CompositionBrush == null)
{
// Abort if effects aren't supported.
if (!CompositionCapabilities.GetForCurrentView().AreEffectsSupported())
{
return;
}
var size = new Vector2(SurfaceWidth, SurfaceHeight);
var device = CanvasDevice.GetSharedDevice();
var graphics = CanvasComposition.CreateCompositionGraphicsDevice(Window.Current.Compositor, device);
var surface = graphics.CreateDrawingSurface(size.ToSize(), DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (var session = CanvasComposition.CreateDrawingSession(surface))
{
// Call Implementor to draw on session.
if (!OnDraw(device, session, size))
{
return;
}
}
_surfaceBrush = Window.Current.Compositor.CreateSurfaceBrush(surface);
_surfaceBrush.Stretch = CompositionStretch.Fill;
CompositionBrush = _surfaceBrush;
}
}
/// <summary>
/// This method allows us to reuse a background image that has already been processed.
/// </summary>
/// <param name="pixels">The pixel buffer.</param>
/// <param name="bitmap">The output from RenderTargetBitmap.</param>
/// <param name="dpi">The view DPI where the background was rendered.</param>
/// <param name="areaToRender">The region of the background we wish to cut out.</param>
/// <returns>A <see cref="CompositionSurfaceBrush" /> containing the portion of the background we want.</returns>
private CompositionSurfaceBrush CreateBackgroundBrush(IBuffer pixels, RenderTargetBitmap bitmap, float dpi,
Rect areaToRender)
{
// load the pixels from RenderTargetBitmap onto a CompositionDrawingSurface
CompositionDrawingSurface uiElementBitmapSurface;
using (
// this is the entire background image
// Note we are using the display DPI here.
var canvasBitmap = CanvasBitmap.CreateFromBytes(
_canvasDevice, pixels.ToArray(),
bitmap.PixelWidth,
bitmap.PixelHeight,
DirectXPixelFormat.B8G8R8A8UIntNormalized,
dpi)
)
{
// we create a surface we can draw on in memory.
// note we are using the desired size of our overlay
uiElementBitmapSurface =
_compositionDevice.CreateDrawingSurface(
new Size(areaToRender.Width, areaToRender.Height),
DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (var session = CanvasComposition.CreateDrawingSession(uiElementBitmapSurface))
{
// here we draw just the part of the background image we wish to use to overlay
session.DrawImage(canvasBitmap, 0, 0, areaToRender);
}
}
var backgroundBrush = _compositor.CreateSurfaceBrush(uiElementBitmapSurface);
backgroundBrush.Stretch = CompositionStretch.UniformToFill;
return(backgroundBrush);
}
private static async Task <CompositionDrawingSurface> LoadFromUri(CanvasDevice canvasDevice, CompositionGraphicsDevice compositionDevice, Uri uri, Size sizeTarget)
{
CanvasBitmap bitmap = await CanvasBitmap.LoadAsync(canvasDevice, uri);
Size sizeSource = bitmap.Size;
if (sizeTarget.IsEmpty)
{
sizeTarget = sizeSource;
}
var surface = compositionDevice.CreateDrawingSurface(
sizeTarget,
DirectXPixelFormat.B8G8R8A8UIntNormalized,
DirectXAlphaMode.Premultiplied);
using (var ds = CanvasComposition.CreateDrawingSession(surface))
{
ds.Clear(Color.FromArgb(0, 0, 0, 0));
ds.DrawImage(
bitmap,
new Rect(0, 0, sizeTarget.Width, sizeTarget.Height),
new Rect(0, 0, sizeSource.Width, sizeSource.Height),
1,
CanvasImageInterpolation.HighQualityCubic);
}
return(surface);
}
private CompositionDrawingSurface SampleImageColor(CanvasBitmap bitmap, CompositionGraphicsDevice device, Size sizeTarget)
{
// Extract the color to tint the blur with
Color predominantColor = ExtractPredominantColor(bitmap.GetPixelColors(), bitmap.Size);
Size sizeSource = bitmap.Size;
if (sizeTarget.IsEmpty)
{
sizeTarget = sizeSource;
}
// Create a heavily blurred version of the image
GaussianBlurEffect blurEffect = new GaussianBlurEffect()
{
Source = bitmap,
BlurAmount = 20.0f
};
CompositionDrawingSurface surface = device.CreateDrawingSurface(sizeTarget,
DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (var ds = CanvasComposition.CreateDrawingSession(surface))
{
Rect destination = new Rect(0, 0, sizeTarget.Width, sizeTarget.Height);
ds.FillRectangle(destination, predominantColor);
ds.DrawImage(blurEffect, destination, new Rect(0, 0, sizeSource.Width, sizeSource.Height), .6f);
}
return(surface);
}
private void FillSurfaceWithBitmap(CanvasBitmap canvasBitmap)
{
CanvasComposition.Resize(_surface, canvasBitmap.Size);
using (var session = CanvasComposition.CreateDrawingSession(_surface))
{
session.Clear(Colors.Transparent);
session.DrawImage(canvasBitmap);
}
}
void DrawSoftwareBitmap(SoftwareBitmap softwareBitmap, Size renderSize)
{
using (var drawingSession = CanvasComposition.CreateDrawingSession(_drawingSurface))
using (var bitmap = CanvasBitmap.CreateFromSoftwareBitmap(drawingSession.Device, softwareBitmap))
{
drawingSession.DrawImage(bitmap,
new Rect(0, 0, renderSize.Width, renderSize.Height));
}
}
public async Task Draw(CompositionGraphicsDevice device, Object drawingLock, CompositionDrawingSurface surface, Size size)
{
var canvasDevice = CanvasComposition.GetCanvasDevice(device);
CanvasBitmap canvasBitmap;
if (_softwareBitmap != null)
{
canvasBitmap = CanvasBitmap.CreateFromSoftwareBitmap(canvasDevice, _softwareBitmap);
}
else if (_file != null)
{
SoftwareBitmap softwareBitmap = await LoadFromFile(_file);
canvasBitmap = CanvasBitmap.CreateFromSoftwareBitmap(canvasDevice, softwareBitmap);
}
else
{
canvasBitmap = await CanvasBitmap.LoadAsync(canvasDevice, _uri);
}
var bitmapSize = canvasBitmap.Size;
//
// Because the drawing is done asynchronously and multiple threads could
// be trying to get access to the device/surface at the same time, we need
// to do any device/surface work under a lock.
//
lock (drawingLock)
{
Size surfaceSize = size;
if (surface.Size != size || surface.Size == new Size(0, 0))
{
// Resize the surface to the size of the image
CanvasComposition.Resize(surface, bitmapSize);
surfaceSize = bitmapSize;
}
// Allow the app to process the bitmap if requested
if (_handler != null)
{
_handler(surface, canvasBitmap, device);
}
else
{
// Draw the image to the surface
using (var session = CanvasComposition.CreateDrawingSession(surface))
{
session.Clear(Windows.UI.Color.FromArgb(0, 0, 0, 0));
session.DrawImage(canvasBitmap, new Rect(0, 0, surfaceSize.Width, surfaceSize.Height), new Rect(0, 0, bitmapSize.Width, bitmapSize.Height));
}
}
}
}
void Draw()
{
using (CanvasDrawingSession ds = CanvasComposition.CreateDrawingSession(DrawingSurface))
{
var format = new CanvasTextFormat
{
FontSize = 60
};
ds.DrawText("F**k yeah baby", Vector2.Zero, Colors.DarkOrange, format);
}
}
void LoadSurface(CompositionDrawingSurface surface, string path)
{
// Draw to surface.
using (var ds = CanvasComposition.CreateDrawingSession(surface))
{
ds.Clear(Colors.Transparent);
var rect = new Windows.Foundation.Rect(0, 0, _rectWidth, _rectHeight);
ds.FillRectangle(rect, Colors.Coral);
}
}
public void RedrawSurface()
{
_imageLoader.DrawIntoSurface(_surface, (surface, device) =>
{
using (var session = CanvasComposition.CreateDrawingSession(surface))
{
session.Clear(Colors.Transparent);
session.FillCircle(new Vector2(_radius, _radius), _radius, _color);
}
});
}
static public CompositionDrawingSurface LoadText(string text, Size sizeTarget, CanvasTextFormat textFormat, Color textColor, Color bgColor)
{
CompositionDrawingSurface surface = _compositionDevice.CreateDrawingSurface(sizeTarget, DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (var ds = CanvasComposition.CreateDrawingSession(surface))
{
ds.Clear(bgColor);
ds.DrawText(text, new Rect(0, 0, sizeTarget.Width, sizeTarget.Height), textColor, textFormat);
}
return(surface);
}
private static async Task <CompositionSurfaceBrush> LoadWin2DSurfaceBrushFromImageAsync(
[NotNull] Compositor compositor, [NotNull] Uri uri, bool reload = false)
{
// Lock the semaphore and check the cache first
await Win2DSemaphore.WaitAsync();
if (!reload && SurfacesCache.TryGetValue(uri.ToString(), out CompositionSurfaceBrush cached))
{
Win2DSemaphore.Release();
return(cached);
}
// Load the image
CompositionSurfaceBrush brush;
try
{
// This will throw and the canvas will re-initialize the Win2D device if needed
CanvasDevice sharedDevice = CanvasDevice.GetSharedDevice();
using (CanvasBitmap bitmap = await CanvasBitmap.LoadAsync(sharedDevice, uri))
{
// Get the device and the target surface
CompositionGraphicsDevice device = CanvasComposition.CreateCompositionGraphicsDevice(compositor, sharedDevice);
CompositionDrawingSurface surface = device.CreateDrawingSurface(default(Size),
DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
// Calculate the surface size
Size size = bitmap.Size;
CanvasComposition.Resize(surface, size);
// Draw the image on the surface and get the resulting brush
using (CanvasDrawingSession session = CanvasComposition.CreateDrawingSession(surface))
{
session.Clear(Color.FromArgb(0, 0, 0, 0));
session.DrawImage(bitmap, new Rect(0, 0, size.Width, size.Height), new Rect(0, 0, size.Width, size.Height));
brush = surface.Compositor.CreateSurfaceBrush(surface);
}
}
}
catch
{
// Device error
brush = null;
}
String key = uri.ToString();
if (brush != null && !SurfacesCache.ContainsKey(key))
{
SurfacesCache.Add(key, brush);
}
Win2DSemaphore.Release();
return(brush);
}
internal void ReDraw(Rect viewPort)
{
_visibleList.Clear();
double top = double.MaxValue,
bottom = double.MinValue,
left = double.MaxValue,
right = double.MinValue;
foreach (var drawable in _drawableList)
{
if (drawable.IsVisible(viewPort))
{
_visibleList.Add(drawable);
bottom = Math.Max(drawable.Bounds.Bottom, bottom);
right = Math.Max(drawable.Bounds.Right, right);
top = Math.Min(drawable.Bounds.Top, top);
left = Math.Min(drawable.Bounds.Left, left);
}
}
Rect toDraw;
if (_visibleList.Any())
{
toDraw = new Rect(Math.Max(left, 0), Math.Max(top, 0), Math.Max(right - left, 0), Math.Max(bottom - top, 0));
toDraw.Union(viewPort);
}
else
{
toDraw = viewPort;
}
if (toDraw.Height > Height)
{
toDraw.Height = Height;
}
if (toDraw.Width > Width)
{
toDraw.Width = Width;
}
using (CanvasDrawingSession drawingSession = CanvasComposition.CreateDrawingSession(_drawingSurface, toDraw))
{
drawingSession.Clear(Colors.White);
foreach (var drawable in _visibleList)
{
drawable.Draw(drawingSession, toDraw);
}
}
}
internal void ReDraw(Rect viewPort)
{
var toDraw = GetDrawingBoundaries(viewPort);
using (var drawingSession = CanvasComposition.CreateDrawingSession(_drawingSurface, toDraw))
{
drawingSession.Clear(Colors.White);
foreach (var drawable in _visibleList)
{
drawable.Draw(drawingSession, toDraw);
}
}
}
public void ProcessFrame(Direct3D11CaptureFrame frame)
{
bool needsReset = false;
bool recreateDevice = false;
if ((frame.ContentSize.Width != _lastSize.Width) ||
(frame.ContentSize.Height != _lastSize.Height))
{
needsReset = true;
_lastSize = frame.ContentSize;
}
try
{
IsRunning = true;
CanvasBitmap canvasBitmap = CanvasBitmap.CreateFromDirect3D11Surface(_canvasDevice, frame.Surface);
//_currentFrame = canvasBitmap;
TakeSegments(canvasBitmap);
Blur();
if (SendingAction.IsCompleted)
{
SendingAction = Task.Run(SendToA);
Frametime.Text = "Frametime: " + FrameRate();
}
//SendToA();
if (ShowCapture.IsChecked == true)
{
Task.Run(() => FillSurfaceWithBitmap(canvasBitmap));
}
else
{
using (var session = CanvasComposition.CreateDrawingSession(_surface))
{
session.Clear(Colors.Transparent);
}
}
}
catch (Exception e) when(_canvasDevice.IsDeviceLost(e.HResult))
{
needsReset = true;
recreateDevice = true;
}
if (needsReset)
{
ResetFramePool(frame.ContentSize, recreateDevice);
}
}
public void DrawTile(Rect rect, int tileRow, int tileColumn)
{
Color randomColor = Color.FromArgb((byte)255, (byte)randonGen.Next(255), (byte)randonGen.Next(255), (byte)randonGen.Next(255));
using (CanvasDrawingSession drawingSession = CanvasComposition.CreateDrawingSession(drawingSurface, rect))
{
drawingSession.Clear(randomColor);
CanvasTextFormat tf = new CanvasTextFormat()
{
FontSize = 72
};
drawingSession.DrawText($"{tileColumn},{tileRow}", new Vector2(50, 50), Colors.Green, tf);
}
}
static public async Task <CompositionDrawingSurface> LoadFromUri(Uri uri)
{
CanvasBitmap CBitmap = await CanvasBitmap.LoadAsync(_canvasDevice, uri);
CompositionDrawingSurface DrawingSurface = _compositionDevice.CreateDrawingSurface(CBitmap.Size, DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied);
using (CanvasDrawingSession DraingSession = CanvasComposition.CreateDrawingSession(DrawingSurface))
{
DraingSession.Clear(Color.FromArgb(0, 0, 0, 0));
DraingSession.DrawImage(CBitmap, new Rect(0, 0, CBitmap.Size.Width, CBitmap.Size.Height));
}
return(DrawingSurface);
}
private void ApplyBlurEffect(CompositionDrawingSurface surface, CanvasBitmap bitmap, CompositionGraphicsDevice device)
{
GaussianBlurEffect blurEffect = new GaussianBlurEffect()
{
Source = bitmap,
BlurAmount = 40.0f,
BorderMode = EffectBorderMode.Hard,
};
using (var ds = CanvasComposition.CreateDrawingSession(surface))
{
ds.DrawImage(blurEffect);
ds.FillRectangle(new Rect(0, 0, surface.Size.Width, surface.Size.Height), Windows.UI.Color.FromArgb(60, 0, 0, 0));
}
}
