Ejemplo n.º 1
0
        //-------------------------------------------------------------------------------------
        // Decodes an image array, resizing/format converting as needed
        //-------------------------------------------------------------------------------------
        private static Image DecodeMultiframe(WICFlags flags, ImageDescription metadata, BitmapDecoder decoder)
        {
            var image = Image.New(metadata);

            Guid sourceGuid;

            if (!ToWIC(metadata.Format, out sourceGuid))
            {
                return(null);
            }

            for (int index = 0; index < metadata.ArraySize; ++index)
            {
                var pixelBuffer = image.PixelBuffer[index, 0];

                using (var frame = decoder.GetFrame(index))
                {
                    var pfGuid = frame.PixelFormat;
                    var size   = frame.Size;

                    if (pfGuid == sourceGuid)
                    {
                        if (size.Width == metadata.Width && size.Height == metadata.Height)
                        {
                            // This frame does not need resized or format converted, just copy...
                            frame.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
                        }
                        else
                        {
                            // This frame needs resizing, but not format converted
                            using (var scaler = new BitmapScaler(Factory))
                            {
                                scaler.Initialize(frame, metadata.Width, metadata.Height, GetWICInterp(flags));
                                scaler.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
                            }
                        }
                    }
                    else
                    {
                        // This frame required format conversion
                        using (var converter = new FormatConverter(Factory))
                        {
                            converter.Initialize(frame, pfGuid, GetWICDither(flags), null, 0, BitmapPaletteType.Custom);

                            if (size.Width == metadata.Width && size.Height == metadata.Height)
                            {
                                converter.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
                            }
                            else
                            {
                                // This frame needs resizing, but not format converted
                                using (var scaler = new BitmapScaler(Factory))
                                {
                                    scaler.Initialize(frame, metadata.Width, metadata.Height, GetWICInterp(flags));
                                    scaler.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
                                }
                            }
                        }
                    }
                }
            }
            return(image);
        }
Ejemplo n.º 2
0
        public bool GetThumbnail(Stream stream, int width, int height, bool cachedOnly, out byte[] imageData, out ImageType imageType)
        {
            imageData = null;
            imageType = ImageType.Unknown;
            // No support for cache
            if (cachedOnly)
            {
                return(false);
            }

            try
            {
                if (stream.CanSeek)
                {
                    stream.Seek(0, SeekOrigin.Begin);
                }

                // open the image file for reading
                using (var factory = new ImagingFactory2())
                    using (var inputStream = new WICStream(factory, stream))
                        using (var decoder = new BitmapDecoder(factory, inputStream, DecodeOptions.CacheOnLoad))
                            using (var scaler = new BitmapScaler(factory))
                                using (var output = new MemoryStream())
                                    using (var encoder = new BitmapEncoder(factory, ContainerFormatGuids.Jpeg))
                                    {
                                        // decode the loaded image to a format that can be consumed by D2D
                                        BitmapSource source = decoder.GetFrame(0);

                                        // Scale down larger images
                                        int sourceWidth  = source.Size.Width;
                                        int sourceHeight = source.Size.Height;
                                        if (width > 0 && height > 0 && (sourceWidth > width || sourceHeight > height))
                                        {
                                            if (sourceWidth <= height)
                                            {
                                                width = sourceWidth;
                                            }

                                            int newHeight = sourceHeight * height / sourceWidth;
                                            if (newHeight > height)
                                            {
                                                // Resize with height instead
                                                width     = sourceWidth * height / sourceHeight;
                                                newHeight = height;
                                            }

                                            scaler.Initialize(source, width, newHeight, BitmapInterpolationMode.Fant);
                                            source = scaler;
                                        }
                                        encoder.Initialize(output);

                                        using (var bitmapFrameEncode = new BitmapFrameEncode(encoder))
                                        {
                                            // Create image encoder
                                            var wicPixelFormat = PixelFormat.FormatDontCare;
                                            bitmapFrameEncode.Initialize();
                                            bitmapFrameEncode.SetSize(source.Size.Width, source.Size.Height);
                                            bitmapFrameEncode.SetPixelFormat(ref wicPixelFormat);
                                            bitmapFrameEncode.WriteSource(source);
                                            bitmapFrameEncode.Commit();
                                            encoder.Commit();
                                        }
                                        imageData = output.ToArray();
                                        imageType = ImageType.Jpeg;
                                        return(true);
                                    }
            }
            catch (Exception e)
            {
                // ServiceRegistration.Get<ILogger>().Warn("WICThumbnailProvider: Error loading bitmapSource from file data stream", e);
                return(false);
            }
        }
Ejemplo n.º 3
0
        /// <summary>
        /// 從WIC Frame建立貼圖資源(非DDS)
        /// </summary>
        /// <param name="d3dContext">If a Direct3D 11 device context is provided and the current device supports it for the given pixel format, it will auto-generate mipmaps.</param>
        private static Result CreateWICTexture(Device device, DeviceContext d3dContext, BitmapFrameDecode frame, int maxsize, ResourceUsage usage, BindFlags bind, CpuAccessFlags cpuAccess, ResourceOptionFlags option, LoadFlags load, out Resource texture, out ShaderResourceView textureView)
        {
            texture     = null;
            textureView = null;

            if (frame.Size.Width <= 0 || frame.Size.Height <= 0)
            {
                return(Result.InvalidArg);
            }

            if (maxsize == 0)
            {
                switch (device.FeatureLevel)
                {
                case FeatureLevel.Level_9_1:
                case FeatureLevel.Level_9_2:
                    maxsize = 2048 /*D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
                    break;

                case FeatureLevel.Level_9_3:
                    maxsize = 4096 /*D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
                    break;

                case FeatureLevel.Level_10_0:
                case FeatureLevel.Level_10_1:
                    maxsize = 8192 /*D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
                    break;

                default:
                    maxsize = Resource.MaximumTexture2DSize;     /*D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION*/
                    break;
                }
            }

            Size2 frameSize = frame.Size;
            Size2 targetSize;

            if (frameSize.Width > maxsize || frameSize.Height > maxsize)
            {
                double ratio = Convert.ToDouble(frameSize.Height) / Convert.ToDouble(frameSize.Width);
                if (frameSize.Width > frameSize.Height)
                {
                    targetSize.Width  = maxsize;
                    targetSize.Height = Math.Max(1, Convert.ToInt32(maxsize * ratio));
                }
                else
                {
                    targetSize.Height = maxsize;
                    targetSize.Width  = Math.Max(1, Convert.ToInt32(maxsize / ratio));
                }
            }
            else
            {
                targetSize = frameSize;
            }

            #region Determine format
            Guid        sourceFormat = frame.PixelFormat;
            Guid        targetFormat = sourceFormat;
            DXGI.Format format       = sourceFormat.ConvertWICToDXGIFormat();
            int         bpp          = 0;

            if (format == DXGI.Format.Unknown)
            {
                if (sourceFormat == PixelFormat.Format96bppRGBFixedPoint)
                {
                    if (WIC2)
                    {
                        targetFormat = PixelFormat.Format96bppRGBFloat;
                        format       = DXGI.Format.R32G32B32_Float;
                        bpp          = 96;
                    }
                    else
                    {
                        targetFormat = PixelFormat.Format128bppRGBAFloat;
                        format       = DXGI.Format.R32G32B32A32_Float;
                        bpp          = 128;
                    }
                }
                else
                {
                    targetFormat = sourceFormat.ConvertToNearest();
                    format       = targetFormat.ConvertWICToDXGIFormat();
                    bpp          = PixelFormat.GetBitsPerPixel(targetFormat);
                }
                if (format == DXGI.Format.Unknown)
                {
                    return(Result.GetResultFromWin32Error(unchecked ((int)0x80070032)));
                }
            }
            else
            {
                bpp = PixelFormat.GetBitsPerPixel(sourceFormat);
            }

            if (format == DXGI.Format.R32G32B32_Float && d3dContext != null)
            {
                // Special case test for optional device support for autogen mipchains for R32G32B32_FLOAT
                var formatSupport = device.CheckFormatSupport(format);
                if (!formatSupport.HasFlag(FormatSupport.MipAutogen))
                {
                    targetFormat = PixelFormat.Format128bppRGBAFloat;
                    format       = DXGI.Format.R32G32B32A32_Float;
                    bpp          = 128;
                }
            }
            if (bpp == 0)
            {
                return(Result.Fail);
            }

            if (load.HasFlag(LoadFlags.ForceSrgb))
            {
                format = format.MakeSRgb();
            }
            else if (!load.HasFlag(LoadFlags.ignoreSrgb))
            {
                bool sRGB = false;
                try {
                    var metareader      = frame.MetadataQueryReader;
                    var containerFormat = metareader.ContainerFormat;

                    if (containerFormat == ContainerFormatGuids.Png)
                    {
                        // Check for sRGB chunk
                        if (metareader.TryGetMetadataByName("/sRGB/RenderingIntent", out var value) == Result.Ok)
                        {
                            sRGB = true;
                        }
                    }
                    else if (metareader.TryGetMetadataByName("System.Image.ColorSpace", out var value) == Result.Ok)
                    {
                        sRGB = true;
                    }

                    if (sRGB)
                    {
                        format = format.MakeSRgb();
                    }
                } catch (SharpDXException) {
                    // BMP, ICO are not supported.
                }
            }

            // Verify our target format is supported by the current device
            var support = device.CheckFormatSupport(format);
            if (!support.HasFlag(FormatSupport.Texture2D))
            {
                targetFormat = PixelFormat.Format32bppRGBA;
                format       = DXGI.Format.R8G8B8A8_UNorm;
                bpp          = 32;
            }
            #endregion


            int    stride    = (targetSize.Width * bpp + 7) / 8; // round
            int    imageSize = stride * targetSize.Height;
            IntPtr temp      = System.Runtime.InteropServices.Marshal.AllocCoTaskMem(imageSize);

            if (sourceFormat == targetFormat && frameSize == targetSize)   // 不需要格式轉換 且 不需要改變大小
            {
                frame.CopyPixels(stride, new DataPointer(temp, imageSize));
            }
            else if (frameSize == targetSize)     // 需要格式轉換
            {
                using (var factory = new ImagingFactory2())
                    using (var coverter = new FormatConverter(factory)) {
                        if (coverter.CanConvert(sourceFormat, targetFormat))
                        {
                            coverter.Initialize(frame, targetFormat, BitmapDitherType.ErrorDiffusion, null, 0, BitmapPaletteType.MedianCut);
                            coverter.CopyPixels(stride, new DataPointer(temp, imageSize));
                        }
                        else
                        {
                            return(Result.UnexpectedFailure);
                        }
                    }
            }
            else if (sourceFormat == targetFormat)     // 需要改變大小
            {
                using (var factory = new ImagingFactory2())
                    using (var scaler = new BitmapScaler(factory)) {
                        scaler.Initialize(frame, targetSize.Width, targetSize.Height, BitmapInterpolationMode.Fant);
                        var pfScaler = scaler.PixelFormat;
                        if (targetFormat == pfScaler)
                        {
                            scaler.CopyPixels(stride, new DataPointer(temp, imageSize));
                        }
                    }
            }
            else     // 需要格式轉換 且 需要改變大小
            {
                using (var factory = new ImagingFactory2())
                    using (var scaler = new BitmapScaler(factory))
                        using (var coverter = new FormatConverter(factory)) {
                            scaler.Initialize(frame, targetSize.Width, targetSize.Height, BitmapInterpolationMode.Fant);
                            var pfScaler = scaler.PixelFormat;

                            if (coverter.CanConvert(pfScaler, targetFormat))
                            {
                                coverter.Initialize(scaler, targetFormat, BitmapDitherType.ErrorDiffusion, null, 0, BitmapPaletteType.MedianCut);
                                coverter.CopyPixels(stride, new DataPointer(temp, imageSize));
                            }
                            else
                            {
                                return(Result.UnexpectedFailure);
                            }
                        }
            }

            var autogen = false;

            if (d3dContext != null)
            {
                var formatSupport = device.CheckFormatSupport(format);
                if (formatSupport.HasFlag(FormatSupport.MipAutogen))
                {
                    autogen = true;
                }
            }

            var texture2DDescription = new Texture2DDescription()
            {
                Width             = targetSize.Width,
                Height            = targetSize.Height,
                MipLevels         = autogen ? 0 : 1,
                ArraySize         = 1,
                Format            = format,
                SampleDescription = new DXGI.SampleDescription(1, 0),
                Usage             = usage,
                CpuAccessFlags    = cpuAccess,
            };

            if (autogen)
            {
                texture2DDescription.BindFlags   = bind | BindFlags.RenderTarget;
                texture2DDescription.OptionFlags = option | ResourceOptionFlags.GenerateMipMaps;
            }
            else
            {
                texture2DDescription.BindFlags   = bind;
                texture2DDescription.OptionFlags = option;
            }

            Result result = Result.Ok;

            // 建立Texture2D !!!
            try {
                if (autogen)
                {
                    texture = new Texture2D(device, texture2DDescription);
                }
                else
                {
                    texture = new Texture2D(device, texture2DDescription, new DataBox[] { new DataBox(temp, stride, imageSize) });
                }
            } catch (SharpDXException e) {
                System.Diagnostics.Debug.WriteLine(e.ToString());
                result = Result.Fail;
            }

            if (result.Success)
            {
                var SRVDesc = new ShaderResourceViewDescription()
                {
                    Format    = format,
                    Dimension = ShaderResourceViewDimension.Texture2D,
                    Texture2D = new ShaderResourceViewDescription.Texture2DResource()
                    {
                        MipLevels = autogen ? -1 : 1
                    },
                };

                try {
                    textureView = new ShaderResourceView(device, texture, SRVDesc);
                    if (autogen)
                    {
                        DataBox data = new DataBox(temp, stride, imageSize);
                        d3dContext.UpdateSubresource(data, texture);
                        d3dContext.GenerateMips(textureView);
                    }
                } catch (Exception e) {
                    System.Diagnostics.Debug.WriteLine(e.ToString());
                    Utilities.Dispose(ref texture);
                    result = Result.Fail;
                }
            }

            // 釋放 Unmanaged 資源
            System.Runtime.InteropServices.Marshal.FreeCoTaskMem(temp);

            return(result);
        }
Ejemplo n.º 4
0
        /// <summary>
        /// Function to read multiple frames from a decoder that supports multiple frames.
        /// </summary>
        /// <param name="wic">WIC interface.</param>
        /// <param name="data">Image data to populate.</param>
        /// <param name="decoder">Decoder for the image.</param>
        private void ReadFrames(GorgonWICImage wic, GorgonImageData data, BitmapDecoder decoder)
        {
            Guid bestPixelFormat = wic.GetGUID(data.Settings.Format);

            // Find the best fit pixel format.
            if (bestPixelFormat == Guid.Empty)
            {
                throw new IOException(string.Format(Resources.GORGFX_FORMAT_NOT_SUPPORTED, data.Settings.Format));
            }

            // Use the image array as the frames.
            int arrayCount = _actualArrayCount.Min(data.Settings.ArrayCount);

            for (int array = 0; array < arrayCount; array++)
            {
                var buffer = data.Buffers[0, array];

                // Get the frame data.
                using (var frame = decoder.GetFrame(array))
                {
                    IntPtr bufferPointer = buffer.Data.BasePointer;
                    Guid   frameFormat   = frame.PixelFormat;
                    int    frameWidth    = frame.Size.Width;
                    int    frameHeight   = frame.Size.Height;
                    var    frameOffset   = GetFrameOffset(frame);

                    // Calculate the pointer offset if we have an offset from the frame.  Only offset if we're clipping the image though.
                    if (((frameOffset.Y != 0) || (frameOffset.X != 0)) && (Clip))
                    {
                        bufferPointer = buffer.Data.BasePointer + (frameOffset.Y * buffer.PitchInformation.RowPitch) + (frameOffset.X * (buffer.PitchInformation.RowPitch / buffer.Width));
                    }

                    // Confirm that we actually need to perform clipping.
                    bool needsSizeAdjust = (frameWidth + frameOffset.X > data.Settings.Width) || (frameHeight + frameOffset.Y > data.Settings.Height);

                    // If the formats match, then we don't need to do conversion.
                    if (bestPixelFormat == frameFormat)
                    {
                        // If the width and height are the same then we can just do a straight copy into the buffer.
                        if (((frameWidth == data.Settings.Width) && (frameHeight == data.Settings.Height)) || ((!needsSizeAdjust) && (Clip)))
                        {
                            frame.CopyPixels(buffer.PitchInformation.RowPitch, bufferPointer, buffer.PitchInformation.SlicePitch);

                            continue;
                        }

                        // We need to scale the image up/down to the size of our image data.
                        if (!Clip)
                        {
                            using (var scaler = new BitmapScaler(wic.Factory))
                            {
                                scaler.Initialize(frame, data.Settings.Width, data.Settings.Height, (BitmapInterpolationMode)Filter);
                                scaler.CopyPixels(buffer.PitchInformation.RowPitch, bufferPointer, buffer.PitchInformation.SlicePitch);
                            }
                            continue;
                        }

                        using (var clipper = new BitmapClipper(wic.Factory))
                        {
                            clipper.Initialize(frame, new Rectangle(0, 0, data.Settings.Width, data.Settings.Height));
                            clipper.CopyPixels(buffer.PitchInformation.RowPitch, bufferPointer, buffer.PitchInformation.SlicePitch);
                        }

                        continue;
                    }

                    // Poop.  We need to convert this image.
                    using (var converter = new FormatConverter(wic.Factory))
                    {
                        converter.Initialize(frame,
                                             bestPixelFormat,
                                             (BitmapDitherType)Dithering,
                                             null,
                                             0.0,
                                             BitmapPaletteType.Custom);

                        if (((frameWidth == data.Settings.Width) && (frameHeight == data.Settings.Height)) ||
                            ((!needsSizeAdjust) && (Clip)))
                        {
                            converter.CopyPixels(buffer.PitchInformation.RowPitch,
                                                 bufferPointer,
                                                 buffer.PitchInformation.SlicePitch);
                            continue;
                        }

                        // And we need to scale the image.
                        if (!Clip)
                        {
                            using (var scaler = new BitmapScaler(wic.Factory))
                            {
                                scaler.Initialize(converter,
                                                  data.Settings.Width,
                                                  data.Settings.Height,
                                                  (BitmapInterpolationMode)Filter);
                                scaler.CopyPixels(buffer.PitchInformation.RowPitch,
                                                  bufferPointer,
                                                  buffer.PitchInformation.SlicePitch);
                            }

                            continue;
                        }

                        using (var clipper = new BitmapClipper(wic.Factory))
                        {
                            clipper.Initialize(frame,
                                               new Rectangle(0, 0, data.Settings.Width, data.Settings.Height));
                            clipper.CopyPixels(buffer.PitchInformation.RowPitch,
                                               bufferPointer,
                                               buffer.PitchInformation.SlicePitch);
                        }
                    }
                }
            }
        }
        public bool GetThumbnail(Stream stream, int width, int height, bool cachedOnly, out byte[] imageData, out ImageType imageType)
        {
            imageData = null;
            imageType = ImageType.Unknown;
            // No support for cache
            if (cachedOnly)
            {
                return(false);
            }

            Bitmap cachedBitmap = null; // used only for rotation

            try
            {
                if (stream.CanSeek)
                {
                    stream.Seek(0, SeekOrigin.Begin);
                }

                // open the image file for reading
                using (var factory = new ImagingFactory2())
                    using (var inputStream = new WICStream(factory, stream))
                        using (var decoder = new BitmapDecoder(factory, inputStream, DecodeOptions.CacheOnLoad))
                            using (var rotator = new BitmapFlipRotator(factory))
                                using (var scaler = new BitmapScaler(factory))
                                    using (var output = new MemoryStream())
                                    {
                                        // decode the loaded image to a format that can be consumed by D2D
                                        BitmapSource source = decoder.GetFrame(0);

                                        // Prefer PNG output for source PNG and for source formats with Alpha channel
                                        var usePngOutput = decoder.DecoderInfo.FriendlyName.StartsWith("PNG") || PixelFormat.GetBitsPerPixel(source.PixelFormat) == 32;

                                        BitmapTransformOptions bitmapTransformationOptions = BitmapTransformOptions.Rotate0;
                                        BitmapFrameDecode      frame = source as BitmapFrameDecode;
                                        if (frame != null)
                                        {
                                            const string EXIF_ORIENTATION_TAG = "/app1/{ushort=0}/{ushort=274}";
                                            ushort?      orientation          = null;
                                            try
                                            {
                                                // Not supported on all input types, i.e. BMP will fail here
                                                orientation = (ushort?)frame.MetadataQueryReader.TryGetMetadataByName(EXIF_ORIENTATION_TAG); //0x0112
                                            }
                                            catch { }

                                            // If the EXIF orientation specifies that the image needs to be flipped or rotated before display, set that up to happen
                                            if (orientation.HasValue)
                                            {
                                                switch (orientation.Value)
                                                {
                                                case 1: break; // No rotation required.

                                                case 2: bitmapTransformationOptions = BitmapTransformOptions.Rotate0 | BitmapTransformOptions.FlipHorizontal; break;

                                                case 3: bitmapTransformationOptions = BitmapTransformOptions.Rotate180; break;

                                                case 4: bitmapTransformationOptions = BitmapTransformOptions.Rotate180 | BitmapTransformOptions.FlipHorizontal; break;

                                                case 5: bitmapTransformationOptions = BitmapTransformOptions.Rotate270 | BitmapTransformOptions.FlipHorizontal; break;

                                                case 6: bitmapTransformationOptions = BitmapTransformOptions.Rotate90; break;

                                                case 7: bitmapTransformationOptions = BitmapTransformOptions.Rotate90 | BitmapTransformOptions.FlipHorizontal; break;

                                                case 8: bitmapTransformationOptions = BitmapTransformOptions.Rotate270; break;
                                                }
                                            }
                                        }

                                        // Scale down larger images
                                        int sourceWidth  = source.Size.Width;
                                        int sourceHeight = source.Size.Height;
                                        if (width > 0 && height > 0 && (sourceWidth > width || sourceHeight > height))
                                        {
                                            if (sourceWidth <= height)
                                            {
                                                width = sourceWidth;
                                            }

                                            int newHeight = sourceHeight * height / sourceWidth;
                                            if (newHeight > height)
                                            {
                                                // Resize with height instead
                                                width     = sourceWidth * height / sourceHeight;
                                                newHeight = height;
                                            }

                                            scaler.Initialize(source, width, newHeight, BitmapInterpolationMode.Fant);
                                            source = scaler;
                                        }

                                        // Rotate
                                        if (bitmapTransformationOptions != BitmapTransformOptions.Rotate0)
                                        {
                                            // For fast rotation a cached bitmap is needed, otherwise only per-pixel-decoding happens which makes the process extremly slow.
                                            // See https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/5ff2b52b-602f-4b22-9fb2-371539ff5ebb/hang-in-createbitmapfromwicbitmap-when-using-iwicbitmapfliprotator?forum=windowswic
                                            cachedBitmap = new Bitmap(factory, source, BitmapCreateCacheOption.CacheOnLoad);
                                            rotator.Initialize(cachedBitmap, bitmapTransformationOptions);
                                            source = rotator;
                                        }

                                        Guid formatGuid = ContainerFormatGuids.Jpeg;
                                        imageType = ImageType.Jpeg;

                                        if (usePngOutput)
                                        {
                                            formatGuid = ContainerFormatGuids.Png;
                                            imageType  = ImageType.Png;
                                        }

                                        using (var encoder = new BitmapEncoder(factory, formatGuid))
                                        {
                                            encoder.Initialize(output);
                                            using (var bitmapFrameEncode = new BitmapFrameEncode(encoder))
                                            {
                                                // Create image encoder
                                                var wicPixelFormat = PixelFormat.FormatDontCare;
                                                bitmapFrameEncode.Initialize();
                                                bitmapFrameEncode.SetSize(source.Size.Width, source.Size.Height);
                                                bitmapFrameEncode.SetPixelFormat(ref wicPixelFormat);
                                                bitmapFrameEncode.WriteSource(source);
                                                bitmapFrameEncode.Commit();
                                                encoder.Commit();
                                            }
                                        }
                                        imageData = output.ToArray();
                                        return(true);
                                    }
            }
            catch (Exception)
            {
                //ServiceRegistration.Get<ILogger>().Warn("WICThumbnailProvider: Error loading bitmapSource from file data stream", ex);
                return(false);
            }
            finally
            {
                cachedBitmap?.Dispose();
            }
        }