5 files changed, 36 insertions, 5 deletions

diff --git a/Backends/CairoBackend/src/Context.cs b/Backends/CairoBackend/src/Context.cs
index c15ecaa3..f9af1bf1 100644
--- a/Backends/CairoBackend/src/Context.cs
+++ b/Backends/CairoBackend/src/Context.cs
@@ -661,7 +661,8 @@ namespace Crow.CairoBackend
 		public void RestoreTransformations()
 			=> NativeMethods.cairo_set_matrix (handle, ref savedMat);
 		public void SetSource(IPattern pat) => NativeMethods.cairo_set_source (handle, (pat as Pattern).handle);
-		public void SetSource(ISurface surf, double x = 0, double y = 0)
-			=> NativeMethods.cairo_set_source_surface (handle, (surf as Surface).handle, x, y);
+		public async void SetSource(ISurface surf, double x = 0, double y = 0) {
+			NativeMethods.cairo_set_source_surface (handle, surf.Handle, x, y);
+		}
 	}
 }
diff --git a/Backends/CairoBackend/src/EglBackend.cs b/Backends/CairoBackend/src/EglBackend.cs
index 909c3cd9..073793e7 100644
--- a/Backends/CairoBackend/src/EglBackend.cs
+++ b/Backends/CairoBackend/src/EglBackend.cs
@@ -7,11 +7,13 @@ namespace Crow.CairoBackend
 {
 	public class EglBackend : CairoBackendBase {
 		EGLDevice device;
+		GLSurface winSurf;
 		/// <summary>
 		/// Create a new generic backend bound to the application surface
 		/// </summary>
 		/// <param name="width">backend surface width</param>
 		/// <param name="height">backend surface height</param>
+		/// <param name="nativeWindoPointer"></param>
 		public EglBackend (int width, int height, IntPtr nativeWindoPointer)
 		: base (width, height, nativeWindoPointer) {
 			if (nativeWindoPointer == IntPtr.Zero) {
@@ -32,7 +34,9 @@ namespace Crow.CairoBackend
 			Glfw3.SwapInterval (0);
 
 			device = new EGLDevice (Glfw3.GetEGLDisplay (), Glfw3.GetEGLContext (hWin));
-			surf = new GLSurface (device, Glfw3.GetEGLSurface (hWin), width, height);
+			//surf = new GLTextureSurface (device, width, height);
+			surf = new ImageSurface (Format.ARGB32, width, height);
+			winSurf = new GLSurface (device, Glfw3.GetEGLSurface (hWin), width, height);
 		}
 		/// <summary>
 		/// Create a new offscreen backend, used in perfTests
@@ -61,9 +65,20 @@ namespace Crow.CairoBackend
 		}
 		public override void FlushUIFrame(IContext ctx)
 		{
-			base.FlushUIFrame (ctx);
 
-			(surf as GLSurface).SwapBuffers ();
+			base.FlushUIFrame (ctx);
+			surf.Flush();
+			using (Context gr = new Context (winSurf)) {
+				gr.SetSource (surf);
+				gr.Paint();
+			}
+			winSurf.SwapBuffers ();
+		}
+		public override void ResizeMainSurface(int width, int height)
+		{
+			base.ResizeMainSurface(width, height);
+			winSurf?.Dispose();
+			winSurf = new GLSurface (device, Glfw3.GetEGLSurface (hWin), width, height);
 		}
 	}
 }
diff --git a/Backends/CairoBackend/src/ImageBackend.cs b/Backends/CairoBackend/src/ImageBackend.cs
index 96899dbd..a90d275a 100644
--- a/Backends/CairoBackend/src/ImageBackend.cs
+++ b/Backends/CairoBackend/src/ImageBackend.cs
@@ -79,6 +79,15 @@ namespace Crow.CairoBackend
 
 			base.FlushUIFrame (ctx);
 		}
+		public override void ResizeMainSurface(int width, int height)
+		{
+			if (surf is ImageSurface) {
+				surf?.Dispose();
+				surf = new ImageSurface (Format.ARGB32, width, height);
+			} else {
+				base.ResizeMainSurface(width, height);
+			}
+		}
 	}
 }
 
diff --git a/Backends/CairoBackend/src/ImageSurface.cs b/Backends/CairoBackend/src/ImageSurface.cs
index 2cfec61c..8870366a 100644
--- a/Backends/CairoBackend/src/ImageSurface.cs
+++ b/Backends/CairoBackend/src/ImageSurface.cs
@@ -96,5 +96,9 @@ namespace Crow.CairoBackend {
 		public int Stride {
 			get { return NativeMethods.cairo_image_surface_get_stride (handle); }
 		}
+		public override void Resize(int width, int height)
+		{
+			
+		}
 	}
 }
diff --git a/Backends/CairoBackend/src/Surface.cs b/Backends/CairoBackend/src/Surface.cs
index 80435b5e..1f44d3ab 100644
--- a/Backends/CairoBackend/src/Surface.cs
+++ b/Backends/CairoBackend/src/Surface.cs
@@ -41,6 +41,8 @@ namespace Crow.CairoBackend {
 	public class Surface : ISurface
 	{
 		internal IntPtr handle = IntPtr.Zero;
+		public IntPtr Handle => handle;
+
 
 		protected Surface()
 		{