async void MainPage_Loaded(object sender, RoutedEventArgs e) { // locate the image var imageUri = new Uri("ms-appx:///Assets/GcLogo.png"); var storageFile = await StorageFile.GetFileFromApplicationUriAsync(imageUri); // load the image into C1Bitmap _bitmap = new C1Bitmap(); await _bitmap.LoadAsync(storageFile, new FormatConverter(PixelFormat.Format32bppPBGRA)); // create Direct2D and DirectWrite factories _d2dFactory = D2D.Factory2.Create(D2D.FactoryType.SingleThreaded); _dwFactory = DW.Factory.Create(DW.FactoryType.Shared); // create GPU resources CreateDeviceResources(); // create the image source _imageSource = new SurfaceImageSource(_marginLT + _bitmap.PixelWidth + _marginRB, _marginLT + _bitmap.PixelHeight + _marginRB, false); // obtain the native interface for the image source _sisNative = ComObject.QueryInterface <DXGI.ISurfaceImageSourceNative>(_imageSource); _sisNative.SetDevice(_dxgiDevice); // draw the image to SurfaceImageSource UpdateImageSource(ImageEffect.Original); // associate the image source with the Image image.Source = _imageSource; }
void CreateImageSource() { ClearImageSource(); _imageSource = new SurfaceImageSource(_bitmap.PixelWidth, _bitmap.PixelHeight, false); _sisNative = ComObject.QueryInterface <DXGI.ISurfaceImageSourceNative>(_imageSource); _sisNative.SetDevice(_dxgiDevice); UpdateImageSource(false); image.Source = _imageSource; }
void UpdateImageSource(bool applyWarpEffect) { Point2L surfaceOffset; DXGI.Surface dxgiSurface; int w = _bitmap.PixelWidth; int h = _bitmap.PixelHeight; var hr = _sisNative.BeginDraw(new RectL(w, h), out surfaceOffset, out dxgiSurface); if (hr == DXGI.ResultCode.DeviceRemoved || hr == DXGI.ResultCode.DeviceReset) { DiscardDeviceResources(); CreateDeviceResources(); _sisNative.SetDevice(_dxgiDevice); return; } hr.CheckError(); var rt = _d2dContext; var bpTarget = new D2D.BitmapProperties1( new D2D.PixelFormat(DXGI.Format.B8G8R8A8_UNorm, D2D.AlphaMode.Premultiplied), (float)_bitmap.DpiX, (float)_bitmap.DpiY, D2D.BitmapOptions.Target | D2D.BitmapOptions.CannotDraw); var targetBmp = D2D.Bitmap1.Create(rt, dxgiSurface, bpTarget); dxgiSurface.Dispose(); rt.SetTarget(targetBmp); rt.BeginDraw(); rt.Clear(null); var buffer = _bitmap.ToD2DBitmap1(rt, D2D.BitmapOptions.None); if (!applyWarpEffect) { rt.DrawBitmap(buffer, new RectF(surfaceOffset.X, surfaceOffset.Y, w, h)); } else { _warp.SetNormPositions(_warpStart, _warpEnd); _warp.Effect.SetInput(0, buffer); rt.DrawImage(_warp.Effect, new Point2F(surfaceOffset.X, surfaceOffset.Y)); //_blur.SetInputEffect(0, _warp.Effect); //rt.DrawImage(_blur, new Point2F(surfaceOffset.X, surfaceOffset.Y)); } buffer.Dispose(); rt.EndDraw(); rt.SetTarget(null); if (applyWarpEffect) { var srcRect = new RectL(surfaceOffset.X, surfaceOffset.Y, w, h); _bitmap.ImportAsFragment(targetBmp, rt, srcRect, 0, 0); } targetBmp.Dispose(); _sisNative.EndDraw(); }
/// <summary> /// Draws the image on SurfaceImageSource. /// </summary> void UpdateImageSource(ImageEffect imageEffect) { int w = _bitmap.PixelWidth + _marginLT + _marginRB; int h = _bitmap.PixelHeight + _marginLT + _marginRB; Point2L surfaceOffset = Point2L.Empty; DXGI.Surface dxgiSurface = null; var hr = HResult.Ok; // receive the target DXGI.Surface and offset for drawing for (int i = 0; i <= 1; i++) { hr = _sisNative.BeginDraw(new RectL(w, h), out surfaceOffset, out dxgiSurface); if ((hr != DXGI.ResultCode.DeviceRemoved && hr != DXGI.ResultCode.DeviceReset) || i > 0) { break; } // try to recreate the device resources if the old GPU device was removed DiscardDeviceResources(); CreateDeviceResources(); _sisNative.SetDevice(_dxgiDevice); } hr.CheckError(); // the render target object var rt = _d2dContext; // create the target Direct2D bitmap for the given DXGI.Surface var bpTarget = new D2D.BitmapProperties1( new D2D.PixelFormat(DXGI.Format.B8G8R8A8_UNorm, D2D.AlphaMode.Premultiplied), (float)_bitmap.DpiX, (float)_bitmap.DpiY, D2D.BitmapOptions.Target | D2D.BitmapOptions.CannotDraw); var targetBmp = D2D.Bitmap1.Create(rt, dxgiSurface, bpTarget); dxgiSurface.Dispose(); // associate the target bitmap with render target rt.SetTarget(targetBmp); targetBmp.Dispose(); // start drawing rt.BeginDraw(); // clear the target bitmap rt.Clear(null); // convert C1Bitmap image to Direct2D image var d2dBitmap = _bitmap.ToD2DBitmap1(rt, D2D.BitmapOptions.None); // apply the effect or just draw the original image surfaceOffset.X += _marginLT; surfaceOffset.Y += _marginLT; var targetOffset = surfaceOffset.ToPoint2F(); switch (imageEffect) { case ImageEffect.Original: rt.DrawImage(d2dBitmap, targetOffset); break; case ImageEffect.GaussianBlur: rt.DrawImage(ApplyGaussianBlur(d2dBitmap), targetOffset); break; case ImageEffect.Sharpen: rt.DrawImage(ApplySharpen(d2dBitmap), targetOffset); break; case ImageEffect.HorizontalSmear: rt.DrawImage(ApplyHorizontalSmear(d2dBitmap), targetOffset); break; case ImageEffect.Shadow: rt.DrawImage(ApplyShadow(d2dBitmap), targetOffset); break; case ImageEffect.DisplacementMap: rt.DrawImage(ApplyDisplacementMap(d2dBitmap), targetOffset); break; case ImageEffect.Emboss: rt.DrawImage(ApplyEmboss(d2dBitmap), targetOffset); break; case ImageEffect.EdgeDetect: rt.DrawImage(ApplyEdgeDetect(d2dBitmap), targetOffset); break; case ImageEffect.Sepia: rt.DrawImage(ApplySepia(d2dBitmap), targetOffset); break; } d2dBitmap.Dispose(); // draw the additional text label in case of the Shadow effect if (imageEffect == ImageEffect.Shadow) { var mr = Matrix3x2.Rotation(-90f); var mt = Matrix3x2.Translation(targetOffset.X + 6f, targetOffset.Y + 344f); rt.Transform = mr * mt; _brush.SetColor(ColorF.White); rt.DrawTextLayout(new Point2F(-1f, -1f), _textLayout, _brush); _brush.SetColor(ColorF.DimGray); rt.DrawTextLayout(Point2F.Empty, _textLayout, _brush); rt.Transform = Matrix3x2.Identity; } // finish drawing (all drawing commands are executed at that moment) rt.EndDraw(); // detach and actually dispose the target bitmap rt.SetTarget(null); // complete drawing on SurfaceImageSource _sisNative.EndDraw(); }