use pop/push model for blendingmode instead.

src/Avalonia.Visuals/Platform/IDrawingContextImpl.cs

@@ -31,7 +31,7 @@ namespace Avalonia.Platform
         /// <param name="destRect">The rect in the output to draw to.</param>
         /// <param name="bitmapInterpolationMode">The bitmap interpolation mode.</param>
         /// <param name="bitmapBlendMode">The bitmap blending mode.</param>
-        void DrawBitmap(IRef<IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode = BitmapInterpolationMode.Default, BitmapBlendingMode bitmapBlendMode = BitmapBlendingMode.SourceOver);
+        void DrawBitmap(IRef<IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode = BitmapInterpolationMode.Default);
 
         /// <summary>
         /// Draws a bitmap image.
@@ -149,6 +149,17 @@ namespace Avalonia.Platform
         /// Pops the latest pushed geometry clip.
         /// </summary>
         void PopGeometryClip();
+        
+        /// <summary>
+        /// Pushes an bitmap blending value.
+        /// </summary>
+        /// <param name="opacity">The opacity.</param>
+        void PushBitmapBlendMode(BitmapBlendingMode blendingMode);
+
+        /// <summary>
+        /// Pops the latest pushed bitmap blending value.
+        /// </summary>
+        void PopBitmapBlendMode();
 
         /// <summary>
         /// Adds a custom draw operation

src/Skia/Avalonia.Skia/DrawingContextImpl.cs

@@ -23,9 +23,11 @@ namespace Avalonia.Skia
         private readonly Vector _dpi;
         private readonly Stack<PaintWrapper> _maskStack = new Stack<PaintWrapper>();
         private readonly Stack<double> _opacityStack = new Stack<double>();
+        private readonly Stack<BitmapBlendingMode> _blendingModeStack = new Stack<BitmapBlendingMode>();
         private readonly Matrix? _postTransform;
         private readonly IVisualBrushRenderer _visualBrushRenderer;
         private double _currentOpacity = 1.0f;
+        private BitmapBlendingMode _currentBlendingMode = BitmapBlendingMode.SourceOver;
         private readonly bool _canTextUseLcdRendering;
         private Matrix _currentTransform;
         private bool _disposed;
@@ -132,7 +134,7 @@ namespace Avalonia.Skia
         }
 
         /// <inheritdoc />
-        public void DrawBitmap(IRef<IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode, BitmapBlendingMode bitmapBlendingMode)
+        public void DrawBitmap(IRef<IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode)
         {
             var drawableImage = (IDrawableBitmapImpl)source.Item;
             var s = sourceRect.ToSKRect();
@@ -145,7 +147,7 @@ namespace Avalonia.Skia
                 })
             {
                 paint.FilterQuality = bitmapInterpolationMode.ToSKFilterQuality();
-                paint.BlendMode = bitmapBlendingMode.ToSKBlendMode();
+                paint.BlendMode = _currentBlendingMode.ToSKBlendMode();
 
                 drawableImage.Draw(this, s, d, paint);
             }
@@ -155,7 +157,7 @@ namespace Avalonia.Skia
         public void DrawBitmap(IRef<IBitmapImpl> source, IBrush opacityMask, Rect opacityMaskRect, Rect destRect)
         {
             PushOpacityMask(opacityMask, opacityMaskRect);
-            DrawBitmap(source, 1, new Rect(0, 0, source.Item.PixelSize.Width, source.Item.PixelSize.Height), destRect, BitmapInterpolationMode.Default, BitmapBlendingMode.SourceOver);
+            DrawBitmap(source, 1, new Rect(0, 0, source.Item.PixelSize.Width, source.Item.PixelSize.Height), destRect, BitmapInterpolationMode.Default);
             PopOpacityMask();
         }
 
@@ -509,6 +511,19 @@ namespace Avalonia.Skia
             Canvas.Restore();
         }
 
+        /// <inheritdoc />
+        public void PushBitmapBlendMode(BitmapBlendingMode blendingMode)
+        {
+            _blendingModeStack.Push(_currentBlendingMode);
+            _currentBlendingMode = blendingMode;
+        }
+
+        /// <inheritdoc />
+        public void PopBitmapBlendMode()
+        {
+            _currentBlendingMode = _blendingModeStack.Pop();
+        }
+
         public void Custom(ICustomDrawOperation custom) => custom.Render(this);
 
         /// <inheritdoc />

src/Windows/Avalonia.Direct2D1/Media/DrawingContextImpl.cs

@@ -117,7 +117,7 @@ namespace Avalonia.Direct2D1.Media
         /// <param name="sourceRect">The rect in the image to draw.</param>
         /// <param name="destRect">The rect in the output to draw to.</param>
         /// <param name="bitmapInterpolationMode">The bitmap interpolation mode.</param>
-        public void DrawBitmap(IRef<IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode, BitmapBlendingMode bitmapBlendingMode)
+        public void DrawBitmap(IRef<IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode)
         {
             using (var d2d = ((BitmapImpl)source.Item).GetDirect2DBitmap(_deviceContext))
             {
@@ -557,6 +557,16 @@ namespace Avalonia.Direct2D1.Media
             PopLayer();
         }
 
+        public void PushBitmapBlendMode(BitmapBlendingMode blendingMode)
+        {
+            // Stubs for now
+        }
+
+        public void PopBitmapBlendMode()
+        {
+            // Stubs for now
+        }
+
         public void PushOpacityMask(IBrush mask, Rect bounds)
         {
             var parameters = new LayerParameters