From 8ac2e525ada5f667d77774dd5880efcbd7fc1bea Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Mon, 27 Jul 2020 16:03:40 +0300
Subject: [PATCH] Expose SKSurface from ISkiaDrawingContextImpl

---
 src/Skia/Avalonia.Skia/DrawingContextImpl.cs        | 8 +++++---
 src/Skia/Avalonia.Skia/FramebufferRenderTarget.cs   | 2 +-
 src/Skia/Avalonia.Skia/Gpu/ISkiaGpuRenderSession.cs | 2 +-
 src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs | 2 +-
 src/Skia/Avalonia.Skia/Gpu/SkiaGpuRenderTarget.cs   | 2 +-
 src/Skia/Avalonia.Skia/ISkiaDrawingContextImpl.cs   | 1 +
 src/Skia/Avalonia.Skia/SurfaceRenderTarget.cs       | 2 +-
 7 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/Skia/Avalonia.Skia/DrawingContextImpl.cs b/src/Skia/Avalonia.Skia/DrawingContextImpl.cs
index d818e683c3..b93d0f8868 100644
--- a/src/Skia/Avalonia.Skia/DrawingContextImpl.cs
+++ b/src/Skia/Avalonia.Skia/DrawingContextImpl.cs
@@ -44,7 +44,7 @@ namespace Avalonia.Skia
             /// <summary>
             /// Canvas to draw to.
             /// </summary>
-            public SKCanvas Canvas;
+            public SKSurface Surface;
 
             /// <summary>
             /// Dpi of drawings.
@@ -81,8 +81,8 @@ namespace Avalonia.Skia
             _grContext = createInfo.GrContext;
             if (_grContext != null)
                 Monitor.Enter(_grContext);
-            
-            Canvas = createInfo.Canvas;
+            Surface = createInfo.Surface;
+            Canvas = createInfo.Surface.Canvas;
 
             if (Canvas == null)
             {
@@ -102,8 +102,10 @@ namespace Avalonia.Skia
         /// Skia canvas.
         /// </summary>
         public SKCanvas Canvas { get; }
+        public SKSurface Surface { get; }
 
         SKCanvas ISkiaDrawingContextImpl.SkCanvas => Canvas;
+        SKSurface ISkiaDrawingContextImpl.SkSurface => Surface;
         GRContext ISkiaDrawingContextImpl.GrContext => _grContext;
 
         /// <inheritdoc />
diff --git a/src/Skia/Avalonia.Skia/FramebufferRenderTarget.cs b/src/Skia/Avalonia.Skia/FramebufferRenderTarget.cs
index 8b04676b09..8d35d27a81 100644
--- a/src/Skia/Avalonia.Skia/FramebufferRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/FramebufferRenderTarget.cs
@@ -52,7 +52,7 @@ namespace Avalonia.Skia
 
             var createInfo = new DrawingContextImpl.CreateInfo
             {
-                Canvas = canvas,
+                Surface = _framebufferSurface,
                 Dpi = framebuffer.Dpi,
                 VisualBrushRenderer = visualBrushRenderer,
                 DisableTextLcdRendering = true
diff --git a/src/Skia/Avalonia.Skia/Gpu/ISkiaGpuRenderSession.cs b/src/Skia/Avalonia.Skia/Gpu/ISkiaGpuRenderSession.cs
index c54d1bd859..a4e2bfed52 100644
--- a/src/Skia/Avalonia.Skia/Gpu/ISkiaGpuRenderSession.cs
+++ b/src/Skia/Avalonia.Skia/Gpu/ISkiaGpuRenderSession.cs
@@ -16,7 +16,7 @@ namespace Avalonia.Skia
         /// <summary>
         /// Canvas that will be used to render.
         /// </summary>
-        SKCanvas Canvas { get; }
+        SKSurface SkSurface { get; }
 
         /// <summary>
         /// Scaling factor.
diff --git a/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs b/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs
index e0b7019672..2bb739f372 100644
--- a/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs
@@ -49,7 +49,7 @@ namespace Avalonia.Skia
             }
 
             public GRContext GrContext { get; }
-            public SKCanvas Canvas => _surface.Canvas;
+            public SKSurface SkSurface => _surface;
             public double ScaleFactor => _glSession.Scaling;
         }
 
diff --git a/src/Skia/Avalonia.Skia/Gpu/SkiaGpuRenderTarget.cs b/src/Skia/Avalonia.Skia/Gpu/SkiaGpuRenderTarget.cs
index 94e513b2fd..ef5da5eb08 100644
--- a/src/Skia/Avalonia.Skia/Gpu/SkiaGpuRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/Gpu/SkiaGpuRenderTarget.cs
@@ -27,7 +27,7 @@ namespace Avalonia.Skia
             var nfo = new DrawingContextImpl.CreateInfo
             {
                 GrContext = session.GrContext,
-                Canvas = session.Canvas,
+                Surface = session.SkSurface,
                 Dpi = SkiaPlatform.DefaultDpi * session.ScaleFactor,
                 VisualBrushRenderer = visualBrushRenderer,
                 DisableTextLcdRendering = true
diff --git a/src/Skia/Avalonia.Skia/ISkiaDrawingContextImpl.cs b/src/Skia/Avalonia.Skia/ISkiaDrawingContextImpl.cs
index a9b91384d7..38fa5a5253 100644
--- a/src/Skia/Avalonia.Skia/ISkiaDrawingContextImpl.cs
+++ b/src/Skia/Avalonia.Skia/ISkiaDrawingContextImpl.cs
@@ -7,5 +7,6 @@ namespace Avalonia.Skia
     {
         SKCanvas SkCanvas { get; }
         GRContext GrContext { get; }
+        SKSurface SkSurface { get; }
     }
 }
diff --git a/src/Skia/Avalonia.Skia/SurfaceRenderTarget.cs b/src/Skia/Avalonia.Skia/SurfaceRenderTarget.cs
index 588f7bee6c..27b29c6e1e 100644
--- a/src/Skia/Avalonia.Skia/SurfaceRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/SurfaceRenderTarget.cs
@@ -70,7 +70,7 @@ namespace Avalonia.Skia
             
             var createInfo = new DrawingContextImpl.CreateInfo
             {
-                Canvas = _canvas,
+                Surface = _surface,
                 Dpi = Dpi,
                 VisualBrushRenderer = visualBrushRenderer,
                 DisableTextLcdRendering = _disableLcdRendering,