public MemoryStream RenderToPngStream(FrameworkElement fe) { var width = (int)Math.Ceiling(fe.ActualWidth); var height = (int)Math.Ceiling(fe.ActualHeight); // pixel format with transparency/alpha channel and RGB values premultiplied by alpha var pixelFormat = WicPixelFormat.Format32bppPRGBA; // pixel format without transparency, but one that works with Cleartype antialiasing //var pixelFormat = WicPixelFormat.Format32bppBGR; var wicBitmap = new Bitmap( this.WicFactory, width, height, pixelFormat, BitmapCreateCacheOption.CacheOnLoad); var renderTargetProperties = new RenderTargetProperties( RenderTargetType.Default, new D2DPixelFormat(Format.R8G8B8A8_UNorm, AlphaMode.Premultiplied), //new D2DPixelFormat(Format.Unknown, AlphaMode.Unknown), // use this for non-alpha, cleartype antialiased text 0, 0, RenderTargetUsage.None, FeatureLevel.Level_DEFAULT); var renderTarget = new WicRenderTarget( this.D2DFactory, wicBitmap, renderTargetProperties) { //TextAntialiasMode = TextAntialiasMode.Cleartype // this only works with the pixel format with no alpha channel TextAntialiasMode = TextAntialiasMode.Grayscale // this is the best we can do for bitmaps with alpha channels }; Compose(renderTarget, fe); // TODO: There is no need to encode the bitmap to PNG - we could just copy the texture pixel buffer to a WriteableBitmap pixel buffer. var ms = new MemoryStream(); var stream = new WICStream( this.WicFactory, ms); var encoder = new PngBitmapEncoder(WicFactory); encoder.Initialize(stream); var frameEncoder = new BitmapFrameEncode(encoder); frameEncoder.Initialize(); frameEncoder.SetSize(width, height); var format = WicPixelFormat.Format32bppBGRA; //var format = WicPixelFormat.FormatDontCare; frameEncoder.SetPixelFormat(ref format); frameEncoder.WriteSource(wicBitmap); frameEncoder.Commit(); encoder.Commit(); frameEncoder.Dispose(); encoder.Dispose(); stream.Dispose(); ms.Position = 0; return(ms); }
public static void WritePngToStream(this Bitmap bitmap, Stream stream, int width = -1, int height = -1) { if (width <= 0) { width = bitmap.Size.Width; } if (height <= 0) { height = bitmap.Size.Height; } // ------------------------------------------------------ // Encode a PNG image // ------------------------------------------------------ // Create a WIC outputstream var wicStream = new WICStream(DXGraphicsService.FactoryImaging, stream); // Initialize a Jpeg encoder with this stream var encoder = new PngBitmapEncoder(DXGraphicsService.FactoryImaging); encoder.Initialize(wicStream); // Create a Frame encoder var bitmapFrameEncode = new BitmapFrameEncode(encoder); bitmapFrameEncode.Initialize(); bitmapFrameEncode.SetSize(width, height); Guid guid = PixelFormat.Format32bppRGBA; bitmapFrameEncode.SetPixelFormat(ref guid); bitmapFrameEncode.WriteSource(bitmap); // Commit changes bitmapFrameEncode.Commit(); encoder.Commit(); // Cleanup bitmapFrameEncode.Options.Dispose(); bitmapFrameEncode.Dispose(); encoder.Dispose(); wicStream.Dispose(); }
// // http://stackoverflow.com/questions/9151615/how-does-one-use-a-memory-stream-instead-of-files-when-rendering-direct2d-images // // Identical to above SO question, except that we are rendering to MemoryStream because it was added to the API // private MemoryStream RenderStaticTextToBitmap() { var width = 400; var height = 100; var pixelFormat = WicPixelFormat.Format32bppBGR; var wicFactory = new ImagingFactory(); var dddFactory = new SharpDX.Direct2D1.Factory(); var dwFactory = new SharpDX.DirectWrite.Factory(); var wicBitmap = new Bitmap( wicFactory, width, height, pixelFormat, BitmapCreateCacheOption.CacheOnLoad); var renderTargetProperties = new RenderTargetProperties( RenderTargetType.Default, new D2DPixelFormat(Format.Unknown, AlphaMode.Unknown), 0, 0, RenderTargetUsage.None, FeatureLevel.Level_DEFAULT); var renderTarget = new WicRenderTarget( dddFactory, wicBitmap, renderTargetProperties) { TextAntialiasMode = TextAntialiasMode.Cleartype }; renderTarget.BeginDraw(); var textFormat = new TextFormat(dwFactory, "Consolas", 48) { TextAlignment = SharpDX.DirectWrite.TextAlignment.Center, ParagraphAlignment = ParagraphAlignment.Center }; var textBrush = new SharpDX.Direct2D1.SolidColorBrush( renderTarget, SharpDX.Colors.Blue); renderTarget.Clear(Colors.White); renderTarget.DrawText( "Hi, mom!", textFormat, new RectangleF(0, 0, width, height), textBrush); renderTarget.EndDraw(); var ms = new MemoryStream(); var stream = new WICStream( wicFactory, ms); var encoder = new PngBitmapEncoder(wicFactory); encoder.Initialize(stream); var frameEncoder = new BitmapFrameEncode(encoder); frameEncoder.Initialize(); frameEncoder.SetSize(width, height); frameEncoder.PixelFormat = WicPixelFormat.FormatDontCare; frameEncoder.WriteSource(wicBitmap); frameEncoder.Commit(); encoder.Commit(); frameEncoder.Dispose(); encoder.Dispose(); stream.Dispose(); ms.Position = 0; return(ms); }
private void SaveToFile(D3DX direct3D, Texture2D texture, Guid format) { var stream = new System.IO.FileStream("Output.png", System.IO.FileMode.Create); var textureTarget = texture; var textureCopy = new Texture2D(direct3D.Device, new Texture2DDescription { Width = (int)textureTarget.Description.Width, Height = (int)textureTarget.Description.Height, MipLevels = 1, ArraySize = 1, Format = textureTarget.Description.Format, Usage = ResourceUsage.Staging, SampleDescription = new SampleDescription(1, 0), BindFlags = BindFlags.None, CpuAccessFlags = CpuAccessFlags.Read, OptionFlags = ResourceOptionFlags.None }); direct3D.DeviceContext.CopyResource(textureTarget, textureCopy); var dataBox = direct3D.DeviceContext.MapSubresource( textureCopy, 0, 0, MapMode.Read, SharpDX.Direct3D11.MapFlags.None, out DataStream dataStream); var dataRectangle = new DataRectangle { DataPointer = dataStream.DataPointer, Pitch = dataBox.RowPitch }; var imagingFactory = new ImagingFactory2(); var bitmap = new SharpDX.WIC.Bitmap( imagingFactory, textureCopy.Description.Width, textureCopy.Description.Height, format, dataRectangle); using (var s = stream) { s.Position = 0; using (var bitmapEncoder = new PngBitmapEncoder(imagingFactory, s)) { using (var bitmapFrameEncode = new BitmapFrameEncode(bitmapEncoder)) { bitmapFrameEncode.Initialize(); bitmapFrameEncode.SetSize(bitmap.Size.Width, bitmap.Size.Height); var pixelFormat = SharpDX.WIC.PixelFormat.FormatDontCare; bitmapFrameEncode.SetPixelFormat(ref pixelFormat); bitmapFrameEncode.WriteSource(bitmap); bitmapFrameEncode.Commit(); bitmapEncoder.Commit(); bitmapFrameEncode.Dispose(); bitmapEncoder.Dispose(); } } } direct3D.DeviceContext.UnmapSubresource(textureCopy, 0); textureCopy.Dispose(); bitmap.Dispose(); imagingFactory.Dispose(); dataStream.Dispose(); stream.Dispose(); }
/// <summary> /// 从rss生成图像 /// </summary> /// <param name="channel">从rss源获得的数据</param> /// <param name="path">保存图像的路径</param> private void GetImageFromRss(object obj) { ImageObj image = (ImageObj)obj; RssInfo rssInfo = image.rssInfo; RssMedia rssMedia = image.rssMedia; string fileName = ""; if (rssInfo == null || rssMedia == null) { return; } List <Page> pages = GetPageListFromRss(rssInfo, rssMedia); var wicFactory = new ImagingFactory(); var d2dFactory = new SharpDX.Direct2D1.Factory(); var dwFactory = new SharpDX.DirectWrite.Factory(); var renderTargetProperties = new RenderTargetProperties(RenderTargetType.Default, new SharpDX.Direct2D1.PixelFormat(Format.Unknown, SharpDX.Direct2D1.AlphaMode.Unknown), 0, 0, RenderTargetUsage.None, FeatureLevel.Level_DEFAULT); var wicBitmap = new SharpDX.WIC.Bitmap(wicFactory, pageWidth, pageHeight, SharpDX.WIC.PixelFormat.Format32bppBGR, BitmapCreateCacheOption.CacheOnLoad); var d2dRenderTarget = new WicRenderTarget(d2dFactory, wicBitmap, renderTargetProperties); d2dRenderTarget.AntialiasMode = AntialiasMode.PerPrimitive; var solidColorBrush = new SolidColorBrush(d2dRenderTarget, new SharpDX.Color(this.backgroundColor.R, this.backgroundColor.G, this.backgroundColor.B, this.backgroundColor.A)); var textBodyBrush = new SolidColorBrush(d2dRenderTarget, new SharpDX.Color(rssMedia.RssBodyProp. TextColor.R, rssMedia.RssBodyProp.TextColor.G, rssMedia.RssBodyProp.TextColor.B, rssMedia.RssBodyProp.TextColor.A)); var titleColorBrush = new SolidColorBrush(d2dRenderTarget, new SharpDX.Color(rssMedia.RssTitleProp.TextColor.R, rssMedia.RssTitleProp.TextColor.G, rssMedia.RssTitleProp.TextColor.B, rssMedia.RssTitleProp.TextColor.A)); var publishDateColorBrush = new SolidColorBrush(d2dRenderTarget, new SharpDX.Color(rssMedia.RssPublishTimeProp.TextColor.R, rssMedia.RssPublishTimeProp.TextColor.G, rssMedia.RssPublishTimeProp.TextColor.B, rssMedia.RssPublishTimeProp.TextColor.A)); TextLayout textLayout; try { int count = 0; foreach (Page page in pages) { d2dRenderTarget.BeginDraw(); d2dRenderTarget.Clear(new SharpDX.Color(this.backgroundColor.R, this.backgroundColor.G, this.backgroundColor.B, this.backgroundColor.A)); foreach (Line line in page.lines) { foreach (Block block in line.content) { TextFormat textFormat = new TextFormat(dwFactory, block.font.FontFamily.Name, block.font.Size); textLayout = new TextLayout(dwFactory, block.content, textFormat, block.width, block.height); switch (block.type) { case RssBodyType.Title: textLayout.SetUnderline(rssMedia.RssTitleProp.TextFont.Underline, new TextRange(0, block.content.Length)); textLayout.SetFontStyle(rssMedia.RssTitleProp.TextFont.Italic ? FontStyle.Italic : FontStyle.Normal, new TextRange(0, block.content.Length)); textLayout.SetFontWeight(rssMedia.RssTitleProp.TextFont.Bold ? FontWeight.Bold : FontWeight.Normal, new TextRange(0, block.content.Length)); d2dRenderTarget.DrawTextLayout(new Vector2(block.left, block.top), textLayout, titleColorBrush); break; case RssBodyType.Time: textLayout.SetUnderline(rssMedia.RssPublishTimeProp.TextFont.Underline, new TextRange(0, block.content.Length)); textLayout.SetFontStyle(rssMedia.RssPublishTimeProp.TextFont.Italic ? FontStyle.Italic : FontStyle.Normal, new TextRange(0, block.content.Length)); textLayout.SetFontWeight(rssMedia.RssPublishTimeProp.TextFont.Bold ? FontWeight.Bold : FontWeight.Normal, new TextRange(0, block.content.Length)); d2dRenderTarget.DrawTextLayout(new Vector2(block.left, block.top), textLayout, publishDateColorBrush); break; case RssBodyType.Body: textLayout.SetUnderline(rssMedia.RssBodyProp.TextFont.Underline, new TextRange(0, block.content.Length)); textLayout.SetFontStyle(rssMedia.RssBodyProp.TextFont.Italic ? FontStyle.Italic : FontStyle.Normal, new TextRange(0, block.content.Length)); textLayout.SetFontWeight(rssMedia.RssBodyProp.TextFont.Bold ? FontWeight.Bold : FontWeight.Normal, new TextRange(0, block.content.Length)); d2dRenderTarget.DrawTextLayout(new Vector2(block.left, block.top), textLayout, textBodyBrush); break; default: break; } textFormat.Dispose(); textFormat = null; } } d2dRenderTarget.EndDraw(); if (!Directory.Exists(path)) { Directory.CreateDirectory(path); } fileName = string.Format("{0}{1}.jpg", path, DateTime.Now.Ticks.ToString()); var stream = new WICStream(wicFactory, fileName, NativeFileAccess.Write); var encoder = new PngBitmapEncoder(wicFactory); encoder.Initialize(stream); var bitmapFrameEncode = new BitmapFrameEncode(encoder); bitmapFrameEncode.Initialize(); bitmapFrameEncode.SetSize(pageWidth, pageHeight); var pixelFormatGuid = SharpDX.WIC.PixelFormat.FormatDontCare; bitmapFrameEncode.SetPixelFormat(ref pixelFormatGuid); bitmapFrameEncode.WriteSource(wicBitmap); bitmapFrameEncode.Commit(); encoder.Commit(); bitmapFrameEncode.Dispose(); encoder.Dispose(); stream.Dispose(); Console.WriteLine("*********image count is : " + count++); //发送单个图片生成事件 if (SingleGenerateCompleteEvent != null) { SingleGenerateCompleteEvent(fileName); } } //发送生成完成事件 if (GenerateCompleteEvent != null) { GenerateCompleteEvent(path); //停止线程,从字典删除 StopGenerate(rssMedia.CachePath); } } catch (ThreadAbortException aborted) { Trace.WriteLine("rss 图片生成线程终止 : " + aborted.Message); } catch (Exception ex) { Trace.WriteLine("rss 图片生成遇到bug : " + ex.Message); } finally { wicFactory.Dispose(); d2dFactory.Dispose(); dwFactory.Dispose(); wicBitmap.Dispose(); d2dRenderTarget.Dispose(); solidColorBrush.Dispose(); textBodyBrush.Dispose(); titleColorBrush.Dispose(); publishDateColorBrush.Dispose(); rssInfo.Dispose(); rssMedia.Dispose(); wicFactory = null; d2dFactory = null; dwFactory = null; wicBitmap = null; d2dRenderTarget = null; solidColorBrush = null; textBodyBrush = null; titleColorBrush = null; publishDateColorBrush = null; rssInfo = null; rssMedia = null; pages.Clear(); pages = null; } }