Remove ImageContext from IMemoryImage constructors

Now that ImageContext is stateless it can be created on demand, simplifying a lot of things.

NAPS2.Images.Gdi/GdiImage.cs

@@ -12,10 +12,8 @@ namespace NAPS2.Images.Gdi;
 #endif
 public class GdiImage : IMemoryImage
 {
-    public GdiImage(ImageContext imageContext, Bitmap bitmap)
+    public GdiImage(Bitmap bitmap)
     {
-        if (imageContext is not GdiImageContext) throw new ArgumentException("Expected GdiImageContext");
-        ImageContext = imageContext;
         if (bitmap == null)
         {
             throw new ArgumentNullException(nameof(bitmap));
@@ -25,7 +23,7 @@ public class GdiImage : IMemoryImage
         OriginalFileFormat = bitmap.RawFormat.AsImageFileFormat();
     }
 
-    public ImageContext ImageContext { get; }
+    public ImageContext ImageContext { get; } = new GdiImageContext();
 
     /// <summary>
     /// Gets the underlying System.Drawing.Bitmap object for this image.

NAPS2.Images.Gdi/GdiImageContext.cs

@@ -28,7 +28,7 @@ public class GdiImageContext : ImageContext
     {
         var memoryStream = EnsureMemoryStream(stream);
         using var bitmap = new Bitmap(memoryStream);
-        return new GdiImage(this, bitmap).Copy();
+        return new GdiImage(bitmap).Copy();
     }
 
     protected override void LoadFramesCore(Action<IMemoryImage> produceImage, Stream stream,
@@ -42,7 +42,7 @@ public class GdiImageContext : ImageContext
             progress.Report(i, count);
             if (progress.IsCancellationRequested) break;
             bitmap.SelectActiveFrame(FrameDimension.Page, i);
-            produceImage(new GdiImage(this, bitmap).Copy());
+            produceImage(new GdiImage(bitmap).Copy());
         }
         progress.Report(count, count);
     }
@@ -85,6 +85,6 @@ public class GdiImageContext : ImageContext
             }
             bitmap.Palette = p;
         }
-        return new GdiImage(this, bitmap);
+        return new GdiImage(bitmap);
     }
 }

NAPS2.Images.Gdi/GdiImageTransformer.cs

@@ -53,7 +53,7 @@ public class GdiImageTransformer : AbstractImageTransformer<GdiImage>
             g.TranslateTransform(-image.Width / 2.0f, -image.Height / 2.0f);
             g.DrawImage(image.Bitmap, new Rectangle(0, 0, image.Width, image.Height));
         }
-        var resultImage = new GdiImage(ImageContext, result);
+        var resultImage = new GdiImage(result);
         OptimizePixelFormat(image, ref resultImage);
         image.Dispose();
         return resultImage;
@@ -82,6 +82,6 @@ public class GdiImageTransformer : AbstractImageTransformer<GdiImage>
             image.HorizontalResolution * image.Width / transform.Width,
             image.VerticalResolution * image.Height / transform.Height);
         image.Dispose();
-        return new GdiImage(ImageContext, result);
+        return new GdiImage(result);
     }
 }

NAPS2.Images.Gtk/GtkImage.cs

@@ -7,17 +7,15 @@ namespace NAPS2.Images.Gtk;
 
 public class GtkImage : IMemoryImage
 {
-    public GtkImage(ImageContext imageContext, Pixbuf pixbuf)
+    public GtkImage(Pixbuf pixbuf)
     {
-        if (imageContext is not GtkImageContext) throw new ArgumentException("Expected GtkImageContext");
         LeakTracer.StartTracking(this);
-        ImageContext = imageContext;
         Pixbuf = pixbuf;
         HorizontalResolution = float.TryParse(pixbuf.GetOption("x-dpi"), out var xDpi) ? xDpi : 0;
         VerticalResolution = float.TryParse(pixbuf.GetOption("y-dpi"), out var yDpi) ? yDpi : 0;
     }
 
-    public ImageContext ImageContext { get; }
+    public ImageContext ImageContext { get; } = new GtkImageContext();
 
     public Pixbuf Pixbuf { get; }
 
@@ -142,7 +140,7 @@ public class GtkImage : IMemoryImage
         return (keys.ToArray(), values.ToArray());
     }
 
-    public IMemoryImage Clone() => new GtkImage(ImageContext, (Pixbuf) Pixbuf.Clone())
+    public IMemoryImage Clone() => new GtkImage((Pixbuf) Pixbuf.Clone())
     {
         OriginalFileFormat = OriginalFileFormat,
         LogicalPixelFormat = LogicalPixelFormat,

NAPS2.Images.Gtk/GtkImageContext.cs

@@ -32,7 +32,7 @@ public class GtkImageContext : ImageContext
             _tiffIo.LoadTiff(img => { image = img; cts.Cancel(); }, stream, cts.Token);
             return image;
         }
-        return new GtkImage(this, new Pixbuf(stream));
+        return new GtkImage(new Pixbuf(stream));
     }
 
     protected override void LoadFramesCore(Action<IMemoryImage> produceImage, Stream stream,
@@ -65,6 +65,6 @@ public class GtkImageContext : ImageContext
             throw new ArgumentException("Unsupported pixel format");
         }
         var pixbuf = new Pixbuf(Colorspace.Rgb, pixelFormat == ImagePixelFormat.ARGB32, 8, width, height);
-        return new GtkImage(this, pixbuf);
+        return new GtkImage(pixbuf);
     }
 }

NAPS2.Images.Gtk/GtkImageTransformer.cs

@@ -31,7 +31,7 @@ public class GtkImageTransformer : AbstractImageTransformer<GtkImage>
         context.Translate(-image.Width / 2.0, -image.Height / 2.0);
         CairoHelper.SetSourcePixbuf(context, image.Pixbuf, 0, 0);
         context.Paint();
-        var newImage = new GtkImage(ImageContext, new Pixbuf(surface, 0, 0, width, height));
+        var newImage = new GtkImage(new Pixbuf(surface, 0, 0, width, height));
         OptimizePixelFormat(image, ref newImage);
         newImage.LogicalPixelFormat = image.LogicalPixelFormat;
         newImage.SetResolution(xres, yres);
@@ -49,7 +49,7 @@ public class GtkImageTransformer : AbstractImageTransformer<GtkImage>
         context.Scale(transform.Width / (double) image.Width, transform.Height / (double) image.Height);
         CairoHelper.SetSourcePixbuf(context, image.Pixbuf, 0, 0);
         context.Paint();
-        var newImage = new GtkImage(ImageContext, new Pixbuf(surface, 0, 0, transform.Width, transform.Height));
+        var newImage = new GtkImage(new Pixbuf(surface, 0, 0, transform.Width, transform.Height));
         newImage.LogicalPixelFormat = image.LogicalPixelFormat == ImagePixelFormat.BW1
             ? ImagePixelFormat.Gray8
             : image.LogicalPixelFormat;

NAPS2.Images.ImageSharp/ImageSharpImage.cs

@@ -15,17 +15,15 @@ namespace NAPS2.Images.ImageSharp;
 
 public class ImageSharpImage : IMemoryImage
 {
-    public ImageSharpImage(ImageContext imageContext, Image image)
+    public ImageSharpImage(Image image)
     {
-        if (imageContext is not ImageSharpImageContext) throw new ArgumentException("Expected ImageSharpImageContext");
         LeakTracer.StartTracking(this);
-        ImageContext = imageContext;
         // TODO: Something similar to MacImage where if it's not a supported pixel type we convert
         // TODO: Though we might also want to add support where reasonable, e.g. we can probably support argb or bgr pretty easily?
         Image = image;
     }
 
-    public ImageContext ImageContext { get; }
+    public ImageContext ImageContext { get; } = new ImageSharpImageContext();
 
     public Image Image { get; }
 
@@ -156,7 +154,7 @@ public class ImageSharpImage : IMemoryImage
         return encoder;
     }
 
-    public IMemoryImage Clone() => new ImageSharpImage(ImageContext, Image.Clone(_ => { }))
+    public IMemoryImage Clone() => new ImageSharpImage(Image.Clone(_ => { }))
     {
         OriginalFileFormat = OriginalFileFormat,
         LogicalPixelFormat = LogicalPixelFormat

NAPS2.Images.ImageSharp/ImageSharpImageContext.cs

@@ -36,7 +36,7 @@ public class ImageSharpImageContext : ImageContext
 
     protected override IMemoryImage LoadCore(Stream stream, ImageFileFormat format)
     {
-        return new ImageSharpImage(this, Image.Load(GetDecoderOptions(), stream));
+        return new ImageSharpImage(Image.Load(GetDecoderOptions(), stream));
     }
 
     protected override void LoadFramesCore(Action<IMemoryImage> produceImage, Stream stream,
@@ -66,6 +66,6 @@ public class ImageSharpImageContext : ImageContext
             ImagePixelFormat.Gray8 or ImagePixelFormat.BW1 => new Image<L8>(GetConfiguration(), width, height),
             _ => throw new InvalidOperationException("Unsupported pixel format")
         };
-        return new ImageSharpImage(this, image);
+        return new ImageSharpImage(image);
     }
 }

NAPS2.Images.ImageSharp/ImageSharpImageTransformer.cs

@@ -33,7 +33,7 @@ public class ImageSharpImageTransformer : AbstractImageTransformer<ImageSharpIma
         var cropRect = new Rectangle((copy.Width - width) / 2, (copy.Height - height) / 2, width, height);
         copy.Mutate(x => x.Crop(cropRect));
 
-        var newImage = new ImageSharpImage(ImageContext, copy);
+        var newImage = new ImageSharpImage(copy);
         // TODO: In Gdi, we convert this back to BW1. Should we do the same?
         newImage.LogicalPixelFormat = image.LogicalPixelFormat == ImagePixelFormat.BW1
             ? ImagePixelFormat.Gray8

NAPS2.Images.Mac/MacImage.cs

@@ -4,10 +4,8 @@ namespace NAPS2.Images.Mac;
 
 public class MacImage : IMemoryImage
 {
-    public MacImage(ImageContext imageContext, NSImage image)
+    public MacImage(NSImage image)
     {
-        if (imageContext is not MacImageContext) throw new ArgumentException("Expected MacImageContext");
-        ImageContext = imageContext;
         NsImage = image ?? throw new ArgumentNullException(nameof(image));
         var reps = NsImage.Representations();
         if (reps.Length != 1)
@@ -69,7 +67,7 @@ public class MacImage : IMemoryImage
         };
     }
 
-    public ImageContext ImageContext { get; }
+    public ImageContext ImageContext { get; } = new MacImageContext();
 
     public NSImage NsImage { get; }
 
@@ -208,7 +206,7 @@ public class MacImage : IMemoryImage
 #else
             var nsImage = (NSImage) NsImage.Copy();
 #endif
-            return new MacImage(ImageContext, nsImage)
+            return new MacImage(nsImage)
             {
                 OriginalFileFormat = OriginalFileFormat,
                 LogicalPixelFormat = LogicalPixelFormat

NAPS2.Images.Mac/MacImageContext.cs

@@ -37,7 +37,7 @@ public class MacImageContext : ImageContext
                     image.Dispose();
                     return CreateImage(reps[0]);
                 }
-                return new MacImage(this, image);
+                return new MacImage(image);
             }
             finally
             {
@@ -93,7 +93,7 @@ public class MacImageContext : ImageContext
             frame = new NSImage(rep.Size);
         }
         frame.AddRepresentation(rep);
-        return new MacImage(this, frame);
+        return new MacImage(frame);
     }
 
     public override IMemoryImage Create(int width, int height, ImagePixelFormat pixelFormat)
@@ -104,7 +104,7 @@ public class MacImageContext : ImageContext
             var image = new NSImage(rep.Size);
             image.AddRepresentation(rep);
             rep.Dispose();
-            return new MacImage(this, image);
+            return new MacImage(image);
         }
     }
 }

NAPS2.Images.Wpf/WpfImage.cs

@@ -19,18 +19,16 @@ public class WpfImage : IMemoryImage
 
     private bool _disposed;
 
-    public WpfImage(ImageContext imageContext, WriteableBitmap bitmap)
+    public WpfImage(WriteableBitmap bitmap)
     {
-        if (imageContext is not WpfImageContext) throw new ArgumentException("Expected WpfImageContext");
         LeakTracer.StartTracking(this);
-        ImageContext = imageContext;
         // TODO: Something similar to MacImage where if it's not a supported pixel type we convert
         WpfPixelFormatFixer.MaybeFixPixelFormat(ref bitmap);
         Bitmap = bitmap;
         DetachFromDispatcher(Bitmap);
     }
 
-    public ImageContext ImageContext { get; }
+    public ImageContext ImageContext { get; } = new WpfImageContext();
 
     public WriteableBitmap Bitmap { get; private set; }
 
@@ -166,7 +164,7 @@ public class WpfImage : IMemoryImage
     public IMemoryImage Clone()
     {
         if (_disposed) throw new InvalidOperationException();
-        return new WpfImage(ImageContext, Bitmap.Clone())
+        return new WpfImage(Bitmap.Clone())
         {
             OriginalFileFormat = OriginalFileFormat,
             LogicalPixelFormat = LogicalPixelFormat

NAPS2.Images.Wpf/WpfImageContext.cs

@@ -32,7 +32,7 @@ public class WpfImageContext : ImageContext
         bitmap.CacheOption = BitmapCacheOption.OnLoad;
         bitmap.EndInit();
         bitmap.Freeze();
-        return new WpfImage(this, new WriteableBitmap(bitmap));
+        return new WpfImage(new WriteableBitmap(bitmap));
     }
 
     protected override void LoadFramesCore(Action<IMemoryImage> produceImage, Stream stream,
@@ -46,7 +46,7 @@ public class WpfImageContext : ImageContext
             foreach (var frame in decoder.Frames)
             {
                 if (progress.IsCancellationRequested) return;
-                produceImage(new WpfImage(this, new WriteableBitmap(frame)));
+                produceImage(new WpfImage(new WriteableBitmap(frame)));
                 progress.Report(++i, decoder.Frames.Count);
             }
             return;
@@ -77,6 +77,6 @@ public class WpfImageContext : ImageContext
             _ => throw new InvalidOperationException("Unsupported pixel format")
         };
         var image = new WriteableBitmap(width, height, 0, 0, wpfPixelFormat, null);
-        return new WpfImage(this, image);
+        return new WpfImage(image);
     }
 }

NAPS2.Images.Wpf/WpfImageTransformer.cs

@@ -34,7 +34,7 @@ public class WpfImageTransformer : AbstractImageTransformer<WpfImage>
         var rtb = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Default);
         rtb.Render(visual);
 
-        var newImage = new WpfImage(ImageContext, new WriteableBitmap(rtb));
+        var newImage = new WpfImage(new WriteableBitmap(rtb));
         // TODO: In Gdi, we convert this back to BW1 (or the original pixel format). Should we do the same?
         newImage.LogicalPixelFormat = image.LogicalPixelFormat == ImagePixelFormat.BW1
             ? ImagePixelFormat.Gray8
@@ -49,7 +49,7 @@ public class WpfImageTransformer : AbstractImageTransformer<WpfImage>
         var copy = new TransformedBitmap(image.Bitmap,
             new System.Windows.Media.ScaleTransform(transform.Width / (double) image.Width,
                 transform.Height / (double) image.Height));
-        var newImage = new WpfImage(ImageContext, new WriteableBitmap(copy));
+        var newImage = new WpfImage(new WriteableBitmap(copy));
         newImage.LogicalPixelFormat = image.LogicalPixelFormat == ImagePixelFormat.BW1
             ? ImagePixelFormat.Gray8
             : image.LogicalPixelFormat;

NAPS2.Images/IMemoryImage.cs

@@ -8,8 +8,6 @@ namespace NAPS2.Images;
 /// </summary>
 public interface IMemoryImage : IImageStorage
 {
-    // TODO: Now that ImageContext objects are fully stateless, we can maybe eliminate ImageContext as a parameter
-    // in IMemoryImage constructors and just create the appropriate ImageContext objects automatically.
     /// <summary>
     /// Gets the image context used to create this image.
     /// </summary>

NAPS2.Lib.Gtk/EtoForms/Gtk/GtkEtoPlatform.cs

@@ -44,9 +44,9 @@ public class GtkEtoPlatform : EtoPlatform
         return new Bitmap(new BitmapHandler(pixbuf));
     }
 
-    public override IMemoryImage FromBitmap(ImageContext imageContext, Bitmap bitmap)
+    public override IMemoryImage FromBitmap(Bitmap bitmap)
     {
-        return new GtkImage(imageContext, bitmap.ToGdk());
+        return new GtkImage(bitmap.ToGdk());
     }
 
     public override void SetClipboardImage(Clipboard clipboard, ProcessedImage processedImage, IMemoryImage memoryImage)
@@ -57,7 +57,7 @@ public class GtkEtoPlatform : EtoPlatform
         clipboard.Image = memoryImage.ToEtoImage();
     }
 
-    public override IMemoryImage DrawHourglass(ImageContext imageContext, IMemoryImage image)
+    public override IMemoryImage DrawHourglass(IMemoryImage image)
     {
         // TODO
         return image;

NAPS2.Lib.Mac/EtoForms/Mac/MacEtoPlatform.cs

@@ -59,12 +59,12 @@ public class MacEtoPlatform : EtoPlatform
         return new Bitmap(new BitmapHandler((NSImage) nsImage.Copy()));
     }
 
-    public override IMemoryImage FromBitmap(ImageContext imageContext, Bitmap bitmap)
+    public override IMemoryImage FromBitmap(Bitmap bitmap)
     {
-        return new MacImage(imageContext, bitmap.ToNS());
+        return new MacImage(bitmap.ToNS());
     }
 
-    public override IMemoryImage DrawHourglass(ImageContext imageContext, IMemoryImage image)
+    public override IMemoryImage DrawHourglass(IMemoryImage image)
     {
         // TODO
         return image;

NAPS2.Lib.WinForms/EtoForms/WinForms/WinFormsEtoPlatform.cs

@@ -104,12 +104,12 @@ public class WinFormsEtoPlatform : EtoPlatform
         return bitmap.ToEto();
     }
 
-    public override IMemoryImage FromBitmap(ImageContext imageContext, Bitmap bitmap)
+    public override IMemoryImage FromBitmap(Bitmap bitmap)
     {
-        return new GdiImage(imageContext, (SD.Bitmap) bitmap.ToSD());
+        return new GdiImage((SD.Bitmap) bitmap.ToSD());
     }
 
-    public override IMemoryImage DrawHourglass(ImageContext imageContext, IMemoryImage image)
+    public override IMemoryImage DrawHourglass(IMemoryImage image)
     {
         var bitmap = new System.Drawing.Bitmap(image.Width, image.Height);
         using (var g = SD.Graphics.FromImage(bitmap))
@@ -131,7 +131,7 @@ public class WinFormsEtoPlatform : EtoPlatform
             g.DrawImage(hourglass, new SD.Rectangle((bitmap.Width - 32) / 2, (bitmap.Height - 32) / 2, 32, 32));
         }
         image.Dispose();
-        return new GdiImage(imageContext, bitmap);
+        return new GdiImage(bitmap);
     }
 
     public override void SetFrame(Control container, Control control, Point location, Size size, bool inOverlay)

NAPS2.Lib.WinForms/Modules/GdiModule.cs

@@ -17,7 +17,7 @@ public class GdiModule : Module
         builder.RegisterBuildCallback(ctx =>
         {
             var scanningContext = ctx.Resolve<ScanningContext>();
-            scanningContext.LegacyTwainDriver = new LegacyTwainScanDriver(scanningContext);
+            scanningContext.LegacyTwainDriver = new LegacyTwainScanDriver();
         });
     }
 }

NAPS2.Lib.WinForms/Scan/Twain/Legacy/LegacyTwainScanDriver.cs

@@ -5,13 +5,6 @@ namespace NAPS2.Scan.Twain.Legacy;
 
 internal class LegacyTwainScanDriver : IScanDriver
 {
-    private readonly ScanningContext _scanningContext;
-
-    public LegacyTwainScanDriver(ScanningContext scanningContext)
-    {
-        _scanningContext = scanningContext;
-    }
-
     public Task GetDevices(ScanOptions options, CancellationToken cancelToken, Action<ScanDevice> callback)
     {
         Check32Bit();
@@ -28,7 +21,7 @@ internal class LegacyTwainScanDriver : IScanDriver
         Action<IMemoryImage> callback)
     {
         Check32Bit();
-        return Task.Run(() => Invoker.Current.Invoke(() => TwainApi.Scan(_scanningContext, options, callback)));
+        return Task.Run(() => Invoker.Current.Invoke(() => TwainApi.Scan(options, callback)));
     }
 
     private static void Check32Bit()

NAPS2.Lib.WinForms/Scan/Twain/Legacy/TwainApi.cs

@@ -52,7 +52,7 @@ internal static class TwainApi
         return result;
     }
 
-    public static void Scan(ScanningContext scanningContext, ScanOptions options, Action<IMemoryImage> produceImage)
+    public static void Scan(ScanOptions options, Action<IMemoryImage> produceImage)
     {
         var tw = new Twain();
         if (!tw.Init(options.DialogParent))
@@ -64,7 +64,7 @@ internal static class TwainApi
             throw new DeviceNotFoundException();
         }
         var form = new FTwainGui();
-        var mf = new TwainMessageFilter(scanningContext, options, tw, form);
+        var mf = new TwainMessageFilter(options, tw, form);
         form.ShowDialog(new Win32Window(options.DialogParent));
         foreach (var b in mf.Bitmaps)
         {
@@ -74,7 +74,6 @@ internal static class TwainApi
 
     private class TwainMessageFilter : IMessageFilter
     {
-        private readonly ScanningContext _scanningContext;
         private readonly ScanOptions _settings;
         private readonly Twain _tw;
         private readonly FTwainGui _form;
@@ -82,9 +81,8 @@ internal static class TwainApi
         private bool _activated;
         private bool _msgfilter;
 
-        public TwainMessageFilter(ScanningContext scanningContext, ScanOptions settings, Twain tw, FTwainGui form)
+        public TwainMessageFilter(ScanOptions settings, Twain tw, FTwainGui form)
         {
-            _scanningContext = scanningContext;
             _settings = settings;
             _tw = tw;
             _form = form;
@@ -129,7 +127,7 @@ internal static class TwainApi
                         int bitcount = 0;
 
                         Bitmap bmp = DibUtils.BitmapFromDib(img, out bitcount);
-                        Bitmaps.Add(new GdiImage(_scanningContext.ImageContext, bmp));
+                        Bitmaps.Add(new GdiImage(bmp));
                     }
                     _form.Close();
                     break;

NAPS2.Lib/EtoForms/Desktop/DesktopController.cs

@@ -375,7 +375,7 @@ public class DesktopController
             var etoBitmap = (Bitmap) Clipboard.Instance.Image;
             Task.Run(() =>
             {
-                var image = EtoPlatform.Current.FromBitmap(_scanningContext.ImageContext, etoBitmap);
+                var image = EtoPlatform.Current.FromBitmap(etoBitmap);
                 var processedImage = _scanningContext.CreateProcessedImage(image);
                 processedImage = ImportPostProcessor.AddPostProcessingData(processedImage, image,
                     _thumbnailController.RenderSize, new BarcodeDetectionOptions(), true);

NAPS2.Lib/EtoForms/EtoPlatform.cs

@@ -23,8 +23,8 @@ public abstract class EtoPlatform
     public abstract IListView<T> CreateListView<T>(ListViewBehavior<T> behavior) where T : notnull;
     public abstract void ConfigureImageButton(Button button, bool big);
     public abstract Bitmap ToBitmap(IMemoryImage image);
-    public abstract IMemoryImage FromBitmap(ImageContext imageContext, Bitmap bitmap);
+    public abstract IMemoryImage FromBitmap(Bitmap bitmap);
-    public abstract IMemoryImage DrawHourglass(ImageContext imageContext, IMemoryImage thumb);
+    public abstract IMemoryImage DrawHourglass(IMemoryImage thumb);
     public abstract void SetFrame(Control container, Control control, Point location, Size size, bool inOverlay);
     public abstract Control CreateContainer();
     public abstract void AddToContainer(Control container, Control control, bool inOverlay);

NAPS2.Lib/Images/UiThumbnailProvider.cs

@@ -28,7 +28,7 @@ public class UiThumbnailProvider
             }
             if (img.IsThumbnailDirty)
             {
-                thumb = EtoPlatform.Current.DrawHourglass(_imageContext, thumb);
+                thumb = EtoPlatform.Current.DrawHourglass(thumb);
             }
             return thumb;
         }
@@ -38,7 +38,7 @@ public class UiThumbnailProvider
     {
         var placeholder = _imageContext.Create(thumbnailSize, thumbnailSize, ImagePixelFormat.RGB24);
         placeholder.Fill(_colorScheme.BackgroundColor);
-        placeholder = EtoPlatform.Current.DrawHourglass(_imageContext, placeholder);
+        placeholder = EtoPlatform.Current.DrawHourglass(placeholder);
         return placeholder;
     }
 }

NAPS2.Sdk.Tests/Images/GdiImageTests.cs

@@ -32,7 +32,7 @@ public class GdiImageTests
     {
         var bitmap = new Bitmap(new MemoryStream(ImageResources.dog_bw_invertpal));
 
-        var image = new GdiImage(new GdiImageContext(), bitmap);
+        var image = new GdiImage(bitmap);
         Assert.True(image.FixedPixelFormat);
         Assert.Equal(ImagePixelFormat.BW1, image.PixelFormat);
         Assert.Equal(Color.Black.ToArgb(), image.Bitmap.Palette.Entries[0].ToArgb());
@@ -49,7 +49,7 @@ public class GdiImageTests
         p.Entries[128] = Color.Blue;
         bitmap.Palette = p;
 
-        var image = new GdiImage(new GdiImageContext(), bitmap);
+        var image = new GdiImage(bitmap);
         Assert.True(image.FixedPixelFormat);
         Assert.Equal(ImagePixelFormat.RGB24, image.PixelFormat);
     }
@@ -59,7 +59,7 @@ public class GdiImageTests
     {
         var bitmap = new Bitmap(1, 1, PixelFormat.Format48bppRgb);
 
-        var image = new GdiImage(new GdiImageContext(), bitmap);
+        var image = new GdiImage(bitmap);
         Assert.True(image.FixedPixelFormat);
         Assert.Equal(ImagePixelFormat.RGB24, image.PixelFormat);
     }
@@ -69,7 +69,7 @@ public class GdiImageTests
     {
         var bitmap = new Bitmap(1, 1, PixelFormat.Format64bppArgb);
 
-        var image = new GdiImage(new GdiImageContext(), bitmap);
+        var image = new GdiImage(bitmap);
         Assert.True(image.FixedPixelFormat);
         Assert.Equal(ImagePixelFormat.ARGB32, image.PixelFormat);
     }

NAPS2.Sdk/Scan/Internal/Apple/DeviceOperator.cs

@@ -215,7 +215,7 @@ internal class DeviceOperator : ICScannerDeviceDelegate
         nsImage.AddRepresentation(imageRep);
         // TODO: Could maybe do this without the NAPS2.Images.Mac reference but that would require duplicating
         // a bunch of logic to normalize image reps etc.
-        var macImage = new MacImage(_scanningContext.ImageContext, nsImage);
+        var macImage = new MacImage(nsImage);
         _logger.LogDebug("Setting resolution to {Dpi}", _resolution);
         macImage.SetResolution(_resolution, _resolution);
         if (_scanningContext.ImageContext is MacImageContext)