From 74827aa05c36e79c55882bffebd7571de8194d3f Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Tue, 1 Sep 2020 20:28:45 +0100
Subject: [PATCH 1/3] update harfbuzz

---
 build/HarfBuzzSharp.props                            | 4 ++--
 samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/build/HarfBuzzSharp.props b/build/HarfBuzzSharp.props
index 88c4d36282..e636461ad9 100644
--- a/build/HarfBuzzSharp.props
+++ b/build/HarfBuzzSharp.props
@@ -1,6 +1,6 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <PackageReference Include="HarfBuzzSharp" Version="2.6.1.5" />
-    <PackageReference Condition="'$(IncludeLinuxSkia)' == 'true'" Include="HarfBuzzSharp.NativeAssets.Linux" Version="2.6.1.5" />
+    <PackageReference Include="HarfBuzzSharp" Version="2.6.1.6" />
+    <PackageReference Condition="'$(IncludeLinuxSkia)' == 'true'" Include="HarfBuzzSharp.NativeAssets.Linux" Version="2.6.1.6" />
   </ItemGroup>
 </Project>
diff --git a/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj b/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj
index 2dbc095156..69abbedbec 100644
--- a/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj
+++ b/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj
@@ -173,8 +173,10 @@
       <Project>{d0a739b9-3c68-4ba6-a328-41606954b6bd}</Project>
       <Name>ControlCatalog</Name>
     </ProjectReference>
+    <PackageReference Include="SkiaSharp.HarfBuzz" Version="2.80.2-preview.33" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
   <Import Project="..\..\build\LegacyProject.targets" />
   <Import Project="..\..\build\SkiaSharp.props" />
+  <Import Project="..\..\build\HarfBuzzSharp.props" />
 </Project>

From 706cdf818af98f370602261ba0602821a27815e7 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Wed, 2 Sep 2020 10:52:45 +0100
Subject: [PATCH 2/3] fix emulator for ios.

---
 samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj b/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj
index 69abbedbec..db1e16166a 100644
--- a/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj
+++ b/samples/ControlCatalog.iOS/ControlCatalog.iOS.csproj
@@ -9,6 +9,10 @@
     <RootNamespace>ControlCatalog.iOS</RootNamespace>
     <IPhoneResourcePrefix>Resources</IPhoneResourcePrefix>
     <AssemblyName>ControlCatalogiOS</AssemblyName>
+    <MtouchEnableSGenConc>true</MtouchEnableSGenConc>
+    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
+    <RestoreProjectStyle>PackageReference</RestoreProjectStyle>
+    <ProvisioningType>automatic</ProvisioningType>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
     <DebugSymbols>true</DebugSymbols>
@@ -19,8 +23,8 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ConsolePause>false</ConsolePause>
-    <MtouchArch>i386</MtouchArch>
-    <MtouchLink>SdkOnly</MtouchLink>
+    <MtouchArch>x86_64</MtouchArch>
+    <MtouchLink>None</MtouchLink>
     <MtouchDebug>True</MtouchDebug>
     <MtouchSdkVersion>9.1</MtouchSdkVersion>
     <MtouchProfiling>False</MtouchProfiling>
@@ -43,7 +47,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <MtouchLink>None</MtouchLink>
-    <MtouchArch>i386</MtouchArch>
+    <MtouchArch>x86_64</MtouchArch>
     <ConsolePause>false</ConsolePause>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">

From 4722767a9a5da6d9a170976e10cd0de13848d201 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Wed, 2 Sep 2020 11:02:39 +0100
Subject: [PATCH 3/3] remove purge resource calls.

---
 src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs b/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs
index a90faf1448..081db5d26a 100644
--- a/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/Gpu/OpenGl/GlRenderTarget.cs
@@ -35,7 +35,6 @@ namespace Avalonia.Skia
                 IGlPlatformSurfaceRenderingSession glSession)
             {
                 GrContext = grContext;
-                GrContext.PurgeResources();
                 _backendRenderTarget = backendRenderTarget;
                 _surface = surface;
                 _glSession = glSession;
@@ -46,7 +45,6 @@ namespace Avalonia.Skia
                 _surface.Dispose();
                 _backendRenderTarget.Dispose();
                 GrContext.Flush();
-                GrContext.PurgeResources();
                 _glSession.Dispose();
             }