From 9a82e65f5323bd3a3ff04b11a7e7dba0d6399f50 Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Fri, 3 Jun 2022 23:53:01 +0300
Subject: [PATCH 1/3] [X11] Improve _NET_WM_SYNC_REQUEST handling

---
 src/Avalonia.X11/X11Window.cs | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.X11/X11Window.cs b/src/Avalonia.X11/X11Window.cs
index 6d0ca9422b..e7c4a37ea2 100644
--- a/src/Avalonia.X11/X11Window.cs
+++ b/src/Avalonia.X11/X11Window.cs
@@ -47,6 +47,7 @@ namespace Avalonia.X11
         private IntPtr _renderHandle;
         private IntPtr _xSyncCounter;
         private XSyncValue _xSyncValue;
+        private XSyncState _xSyncState = 0;
         private bool _mapped;
         private bool _wasMappedAtLeastOnce = false;
         private double? _scalingOverride;
@@ -54,6 +55,14 @@ namespace Avalonia.X11
         private TransparencyHelper _transparencyHelper;
         private RawEventGrouper _rawEventGrouper;
         private bool _useRenderWindow = false;
+
+        enum XSyncState
+        {
+            None,
+            WaitConfigure,
+            WaitPaint
+        }
+        
         public X11Window(AvaloniaX11Platform platform, IWindowImpl popupParent)
         {
             _platform = platform;
@@ -507,7 +516,11 @@ namespace Avalonia.X11
                 if (_useRenderWindow)
                     XConfigureResizeWindow(_x11.Display, _renderHandle, ev.ConfigureEvent.width,
                         ev.ConfigureEvent.height);
-                EnqueuePaint();
+                if (_xSyncState == XSyncState.WaitConfigure)
+                {
+                    _xSyncState = XSyncState.WaitPaint;
+                    EnqueuePaint();
+                }
             }
             else if (ev.type == XEventName.DestroyNotify 
                      && ev.DestroyWindowEvent.window == _handle)
@@ -527,6 +540,7 @@ namespace Avalonia.X11
                     {
                         _xSyncValue.Lo = new UIntPtr(ev.ClientMessageEvent.ptr3.ToPointer()).ToUInt32();
                         _xSyncValue.Hi = ev.ClientMessageEvent.ptr4.ToInt32();
+                        _xSyncState = XSyncState.WaitConfigure;
                     }
                 }
             }
@@ -755,8 +769,11 @@ namespace Avalonia.X11
         void DoPaint()
         {
             Paint?.Invoke(new Rect());
-            if (_xSyncCounter != IntPtr.Zero)
+            if (_xSyncCounter != IntPtr.Zero && _xSyncState == XSyncState.WaitPaint)
+            {
+                _xSyncState = XSyncState.None;
                 XSyncSetCounter(_x11.Display, _xSyncCounter, _xSyncValue);
+            }
         }
         
         public void Invalidate(Rect rect)
@@ -802,6 +819,12 @@ namespace Avalonia.X11
                 XDestroyIC(_xic);
                 _xic = IntPtr.Zero;
             }
+
+            if (_xSyncCounter != IntPtr.Zero)
+            {
+                XSyncDestroyCounter(_x11.Display, _xSyncCounter);
+                _xSyncCounter = IntPtr.Zero;
+            }
             
             if (_handle != IntPtr.Zero)
             {

From a34e03d7f5ee0a67b00ddf8f2dac4d42a497df58 Mon Sep 17 00:00:00 2001
From: Max Katz <maxkatz6@outlook.com>
Date: Fri, 3 Jun 2022 19:12:12 -0400
Subject: [PATCH 2/3] Fix android service initialization order

---
 src/Android/Avalonia.Android/AndroidPlatform.cs  | 2 --
 src/Android/Avalonia.Android/AvaloniaActivity.cs | 7 ++++---
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/Android/Avalonia.Android/AndroidPlatform.cs b/src/Android/Avalonia.Android/AndroidPlatform.cs
index 61aa6ce946..c7dd896cb8 100644
--- a/src/Android/Avalonia.Android/AndroidPlatform.cs
+++ b/src/Android/Avalonia.Android/AndroidPlatform.cs
@@ -61,8 +61,6 @@ namespace Avalonia.Android
                 .Bind<IRenderLoop>().ToConstant(new RenderLoop())
                 .Bind<PlatformHotkeyConfiguration>().ToSingleton<PlatformHotkeyConfiguration>();
 
-            SkiaPlatform.Initialize();
-
             if (options.UseGpu)
             {
                 EglPlatformOpenGlInterface.TryInitialize();
diff --git a/src/Android/Avalonia.Android/AvaloniaActivity.cs b/src/Android/Avalonia.Android/AvaloniaActivity.cs
index f5d620a97a..f3692d33d7 100644
--- a/src/Android/Avalonia.Android/AvaloniaActivity.cs
+++ b/src/Android/Avalonia.Android/AvaloniaActivity.cs
@@ -31,21 +31,22 @@ namespace Avalonia.Android
             
             CustomizeAppBuilder(builder);
 
-            View = new AvaloniaView(this);
-            SetContentView(View);
 
             var lifetime = new SingleViewLifetime();
-            lifetime.View = View;
 
             builder.AfterSetup(x =>
             {
                 _viewModel = new ViewModelProvider(this).Get(Java.Lang.Class.FromType(typeof(AvaloniaViewModel))) as AvaloniaViewModel;
 
+                View = new AvaloniaView(this);
                 if (_viewModel.Content != null)
                 {
                     View.Content = _viewModel.Content;
                 }
 
+                SetContentView(View);
+                lifetime.View = View;
+
                 View.Prepare();
             });
 

From b277db43bd88c860ff998796570fd5540a8b4342 Mon Sep 17 00:00:00 2001
From: Max Katz <maxkatz6@outlook.com>
Date: Fri, 3 Jun 2022 21:02:09 -0400
Subject: [PATCH 3/3] Update release build parameters

---
 .../ControlCatalog.Android/ControlCatalog.Android.csproj   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/samples/ControlCatalog.Android/ControlCatalog.Android.csproj b/samples/ControlCatalog.Android/ControlCatalog.Android.csproj
index 04c67e84e8..ec88852feb 100644
--- a/samples/ControlCatalog.Android/ControlCatalog.Android.csproj
+++ b/samples/ControlCatalog.Android/ControlCatalog.Android.csproj
@@ -20,10 +20,13 @@
   </ItemGroup>
 
   <PropertyGroup Condition="'$(Configuration)'=='Release' and '$(TF_BUILD)' == ''">
-    <DebugSymbols>True</DebugSymbols>
+    <DebugSymbols>False</DebugSymbols>
+    <UseInterpreter>False</UseInterpreter>
     <RunAOTCompilation>True</RunAOTCompilation>
     <EnableLLVM>True</EnableLLVM>
-    <AndroidEnableProfiledAot>True</AndroidEnableProfiledAot>
+    <AndroidAotAdditionalArguments>no-write-symbols,nodebug</AndroidAotAdditionalArguments>
+    <AndroidAotMode>Hybrid</AndroidAotMode>
+    <AndroidGenerateJniMarshalMethods>True</AndroidGenerateJniMarshalMethods>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">