Fix Skia saving screenshot with transparent background and incorrect origin (#7073)

* Fix Skia saving screenshot with transparent background and incorrect origin

* Remove code that is no longer necessary

src/Ryujinx.Horizon/Sdk/OsTypes/Impl/MultiWaitImpl.cs

@@ -21,6 +21,8 @@ namespace Ryujinx.Horizon.Sdk.OsTypes.Impl
 
         public long CurrentTime { get; private set; }
 
+        public IEnumerable<MultiWaitHolderBase> MultiWaits => _multiWaits;
+
         public MultiWaitImpl()
         {
             _multiWaits = new List<MultiWaitHolderBase>();

src/Ryujinx.Horizon/Sdk/OsTypes/MultiWait.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Horizon.Sdk.OsTypes.Impl;
+using System.Collections.Generic;
 
 namespace Ryujinx.Horizon.Sdk.OsTypes
 {
@@ -6,6 +7,8 @@ namespace Ryujinx.Horizon.Sdk.OsTypes
     {
         private readonly MultiWaitImpl _impl;
 
+        public IEnumerable<MultiWaitHolderBase> MultiWaits => _impl.MultiWaits;
+
         public MultiWait()
         {
             _impl = new MultiWaitImpl();

src/Ryujinx.Horizon/Sdk/Sf/Hipc/ServerManagerBase.cs

@@ -3,6 +3,7 @@ using Ryujinx.Horizon.Sdk.OsTypes;
 using Ryujinx.Horizon.Sdk.Sf.Cmif;
 using Ryujinx.Horizon.Sdk.Sm;
 using System;
+using System.Linq;
 
 namespace Ryujinx.Horizon.Sdk.Sf.Hipc
 {
@@ -116,6 +117,18 @@ namespace Ryujinx.Horizon.Sdk.Sf.Hipc
             while (WaitAndProcessRequestsImpl())
             {
             }
+
+            // Unlink pending sessions, dispose expects them to be already unlinked.
+
+            ServerSession[] serverSessions = Enumerable.OfType<ServerSession>(_multiWait.MultiWaits).ToArray();
+
+            foreach (ServerSession serverSession in serverSessions)
+            {
+                if (serverSession.IsLinked)
+                {
+                    serverSession.UnlinkFromMultiWaitHolder();
+                }
+            }
         }
 
         public void WaitAndProcessRequests()

src/Ryujinx/AppHost.cs

@@ -367,19 +367,14 @@ namespace Ryujinx.Ava
                         }
 
                         var colorType = e.IsBgra ? SKColorType.Bgra8888 : SKColorType.Rgba8888;
-                        using var bitmap = new SKBitmap(new SKImageInfo(e.Width, e.Height, colorType, SKAlphaType.Premul));
+                        using SKBitmap bitmap = new SKBitmap(new SKImageInfo(e.Width, e.Height, colorType, SKAlphaType.Premul));
 
                         Marshal.Copy(e.Data, 0, bitmap.GetPixels(), e.Data.Length);
 
-                        SKBitmap bitmapToSave = null;
+                        using SKBitmap bitmapToSave = new SKBitmap(bitmap.Width, bitmap.Height);
+                        using SKCanvas canvas = new SKCanvas(bitmapToSave);
 
-                        if (e.FlipX || e.FlipY)
+                        canvas.Clear(SKColors.Black);
-                        {
-                            bitmapToSave = new SKBitmap(bitmap.Width, bitmap.Height);
-
-                            using var canvas = new SKCanvas(bitmapToSave);
-
-                            canvas.Clear(SKColors.Transparent);
 
                         float scaleX = e.FlipX ? -1 : 1;
                         float scaleY = e.FlipY ? -1 : 1;
@@ -387,12 +382,9 @@ namespace Ryujinx.Ava
                         var matrix = SKMatrix.CreateScale(scaleX, scaleY, bitmap.Width / 2f, bitmap.Height / 2f);
 
                         canvas.SetMatrix(matrix);
+                        canvas.DrawBitmap(bitmap, SKPoint.Empty);
 
-                            canvas.DrawBitmap(bitmap, new SKPoint(e.FlipX ? -bitmap.Width : 0, e.FlipY ? -bitmap.Height : 0));
+                        SaveBitmapAsPng(bitmapToSave, path);
-                        }
-
-                        SaveBitmapAsPng(bitmapToSave ?? bitmap, path);
-                        bitmapToSave?.Dispose();
 
                         Logger.Notice.Print(LogClass.Application, $"Screenshot saved to {path}", "Screenshot");
                     }

src/Ryujinx/UI/ViewModels/DownloadableContentManagerViewModel.cs

@@ -263,7 +263,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
                     var content = new DownloadableContentModel(nca.Header.TitleId.ToString("X16"), path, fileEntry.FullPath, true);
                     DownloadableContents.Add(content);
-                    SelectedDownloadableContents.Add(content);
+                    Dispatcher.UIThread.InvokeAsync(() => SelectedDownloadableContents.Add(content));
 
                     success = true;
                 }

src/Ryujinx/UI/ViewModels/TitleUpdateViewModel.cs

@@ -169,7 +169,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
-        private void AddUpdate(string path, bool ignoreNotFound = false)
+        private void AddUpdate(string path, bool ignoreNotFound = false, bool selected = false)
         {
             if (!File.Exists(path) || TitleUpdates.Any(x => x.Path == path))
             {
@@ -204,7 +204,13 @@ namespace Ryujinx.Ava.UI.ViewModels
                     controlNca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.None).OpenFile(ref nacpFile.Ref, "/control.nacp".ToU8Span(), OpenMode.Read).ThrowIfFailure();
                     nacpFile.Get.Read(out _, 0, SpanHelpers.AsByteSpan(ref controlData), ReadOption.None).ThrowIfFailure();
 
-                    TitleUpdates.Add(new TitleUpdateModel(controlData, path));
+                    var update = new TitleUpdateModel(controlData, path);
+                    TitleUpdates.Add(update);
+
+                    if (selected)
+                    {
+                        Dispatcher.UIThread.InvokeAsync(() => SelectedUpdate = update);
+                    }
                 }
                 else
                 {
@@ -245,7 +251,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             foreach (var file in result)
             {
-                AddUpdate(file.Path.LocalPath);
+                AddUpdate(file.Path.LocalPath, selected: true);
             }
 
             SortUpdates();