Add R-Tree overload of beginRecording

binding/SkiaSharp/SKPictureRecorder.cs

@@ -30,6 +30,25 @@ public SKCanvas BeginRecording (SKRect cullRect)
 			return OwnedBy (SKCanvas.GetObject (SkiaApi.sk_picture_recorder_begin_recording (Handle, &cullRect), false), this);
 		}
 
+		public SKCanvas BeginRecording (SKRect cullRect, bool useRTree)
+		{
+			// no R-Tree is being used, so use the default path
+			if (!useRTree) {
+				return BeginRecording (cullRect);
+			}
+
+			// an R-Tree was requested, so create the R-Tree BBH factory
+			var rtreeHandle = IntPtr.Zero;
+			try {
+				rtreeHandle = SkiaApi.sk_rtree_factory_new ();
+				return OwnedBy (SKCanvas.GetObject (SkiaApi.sk_picture_recorder_begin_recording_with_bbh_factory (Handle, &cullRect, rtreeHandle), false), this);
+			} finally {
+				if (rtreeHandle != IntPtr.Zero) {
+					SkiaApi.sk_rtree_factory_delete (rtreeHandle);
+				}
+			}
+		}
+
 		public SKPicture EndRecording ()
 		{
 			return SKPicture.GetObject (SkiaApi.sk_picture_recorder_end_recording (Handle));

binding/SkiaSharp/SkiaApi.generated.cs

@@ -16,6 +16,7 @@
 using gr_vk_extensions_t = System.IntPtr;
 using gr_vk_memory_allocator_t = System.IntPtr;
 using gr_vkinterface_t = System.IntPtr;
+using sk_bbh_factory_t = System.IntPtr;
 using sk_bitmap_t = System.IntPtr;
 using sk_blender_t = System.IntPtr;
 using sk_canvas_t = System.IntPtr;
@@ -58,6 +59,7 @@
 using sk_region_spanerator_t = System.IntPtr;
 using sk_region_t = System.IntPtr;
 using sk_rrect_t = System.IntPtr;
+using sk_rtree_factory_t = System.IntPtr;
 using sk_runtimeeffect_t = System.IntPtr;
 using sk_shader_t = System.IntPtr;
 using sk_stream_asset_t = System.IntPtr;
@@ -8119,6 +8121,20 @@ internal static sk_canvas_t sk_picture_recorder_begin_recording (sk_picture_reco
 			(sk_picture_recorder_begin_recording_delegate ??= GetSymbol<Delegates.sk_picture_recorder_begin_recording> ("sk_picture_recorder_begin_recording")).Invoke (param0, param1);
 		#endif
 
+		// sk_canvas_t* sk_picture_recorder_begin_recording_with_bbh_factory(sk_picture_recorder_t*, const sk_rect_t*, sk_bbh_factory_t*)
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern sk_canvas_t sk_picture_recorder_begin_recording_with_bbh_factory (sk_picture_recorder_t param0, SKRect* param1, sk_bbh_factory_t param2);
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate sk_canvas_t sk_picture_recorder_begin_recording_with_bbh_factory (sk_picture_recorder_t param0, SKRect* param1, sk_bbh_factory_t param2);
+		}
+		private static Delegates.sk_picture_recorder_begin_recording_with_bbh_factory sk_picture_recorder_begin_recording_with_bbh_factory_delegate;
+		internal static sk_canvas_t sk_picture_recorder_begin_recording_with_bbh_factory (sk_picture_recorder_t param0, SKRect* param1, sk_bbh_factory_t param2) =>
+			(sk_picture_recorder_begin_recording_with_bbh_factory_delegate ??= GetSymbol<Delegates.sk_picture_recorder_begin_recording_with_bbh_factory> ("sk_picture_recorder_begin_recording_with_bbh_factory")).Invoke (param0, param1, param2);
+		#endif
+
 		// void sk_picture_recorder_delete(sk_picture_recorder_t*)
 		#if !USE_DELEGATES
 		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
@@ -8231,6 +8247,34 @@ internal static void sk_picture_unref (sk_picture_t param0) =>
 			(sk_picture_unref_delegate ??= GetSymbol<Delegates.sk_picture_unref> ("sk_picture_unref")).Invoke (param0);
 		#endif
 
+		// void sk_rtree_factory_delete(sk_rtree_factory_t*)
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern void sk_rtree_factory_delete (sk_rtree_factory_t param0);
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate void sk_rtree_factory_delete (sk_rtree_factory_t param0);
+		}
+		private static Delegates.sk_rtree_factory_delete sk_rtree_factory_delete_delegate;
+		internal static void sk_rtree_factory_delete (sk_rtree_factory_t param0) =>
+			(sk_rtree_factory_delete_delegate ??= GetSymbol<Delegates.sk_rtree_factory_delete> ("sk_rtree_factory_delete")).Invoke (param0);
+		#endif
+
+		// sk_rtree_factory_t* sk_rtree_factory_new()
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern sk_rtree_factory_t sk_rtree_factory_new ();
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate sk_rtree_factory_t sk_rtree_factory_new ();
+		}
+		private static Delegates.sk_rtree_factory_new sk_rtree_factory_new_delegate;
+		internal static sk_rtree_factory_t sk_rtree_factory_new () =>
+			(sk_rtree_factory_new_delegate ??= GetSymbol<Delegates.sk_rtree_factory_new> ("sk_rtree_factory_new")).Invoke ();
+		#endif
+
 		#endregion
 
 		#region sk_pixmap.h

tests/Tests/SkiaSharp/SKPictureRecorderTest.cs

@@ -13,7 +13,15 @@ public void CanCreateRecorder()
 		}
 
 		[SkippableFact]
-		public void CanCreateRecorderAndDrawOnCanvas()
+		public void CanBeginRecording()
+		{
+			using var recorder = new SKPictureRecorder();
+
+			recorder.BeginRecording(SKRect.Create(100, 100));
+		}
+
+		[SkippableFact]
+		public void DisposingCanvasBeforeRecorderDoesNotCrash()
 		{
 			var recorder = new SKPictureRecorder();
 
@@ -24,22 +32,54 @@ public void CanCreateRecorderAndDrawOnCanvas()
 			recorder.Dispose();
 		}
 
-		[SkippableFact]
-		public void CanCreateFromRecorder()
+		[InlineData(true)]
+		[InlineData(false)]
+		[SkippableTheory]
+		public void CanCreateRecorderAndDrawOnCanvas(bool useRTree)
+		{
+			var cullRect = SKRect.Create(100, 100);
+
+			using var recorder = new SKPictureRecorder();
+
+			var canvas = recorder.BeginRecording(cullRect, useRTree);
+			canvas.DrawColor(SKColors.Blue);
+
+			using var picture = recorder.EndRecording();
+			Assert.NotNull(picture);
+			Assert.Equal(cullRect, picture.CullRect);
+		}
+
+		[InlineData(true)]
+		[InlineData(false)]
+		[SkippableTheory]
+		public void CanCreateDrawableFromRecorder(bool useRTree)
 		{
 			var cullRect = SKRect.Create(100, 100);
 
-			using (var recorder = new SKPictureRecorder())
-			using (var canvas = recorder.BeginRecording(cullRect))
-			{
-				canvas.DrawColor(SKColors.Blue);
-
-				using (var drawable = recorder.EndRecordingAsDrawable())
-				{
-					Assert.NotNull(drawable);
-					Assert.Equal(cullRect, drawable.Bounds);
-				}
-			}
+			using var recorder = new SKPictureRecorder();
+			var canvas = recorder.BeginRecording(cullRect, useRTree);
+
+			canvas.DrawColor(SKColors.Blue);
+
+			using var drawable = recorder.EndRecordingAsDrawable();
+			Assert.NotNull(drawable);
+			Assert.Equal(cullRect, drawable.Bounds);
+		}
+
+		[InlineData(false, 0, 0, 100, 100)]
+		[InlineData(true, 20, 20, 60, 60)]
+		[SkippableTheory]
+		public void UsingRTreeClipsOperations(bool useRTree, int x, int y, int w, int h)
+		{
+			using var recorder = new SKPictureRecorder();
+			var canvas = recorder.BeginRecording(SKRect.Create(100, 100), useRTree);
+
+			canvas.DrawRect(60, 60, 20, 20, new());
+			canvas.DrawRect(20, 20, 20, 20, new());
+
+			using var picture = recorder.EndRecording();
+
+			Assert.Equal(SKRect.Create(x, y, w, h), picture.CullRect);
 		}
 	}
 }