[VideoOut] Allow a hidden presenter window

src/SharpEmu.Libs/VideoOut/SdlHostWindow.cs

@@ -54,7 +54,8 @@ internal sealed unsafe class SdlHostWindow : IDisposable, IHostGamepadOutput
         string title,
         HostVideoOptions options,
         SdlGraphicsApi graphicsApi,
-        Action? toggleBackendHud = null)
+        Action? toggleBackendHud = null,
+        bool hidden = false)
     {
         _options = options.Normalize();
         _graphicsApi = graphicsApi;
@@ -81,6 +82,11 @@ internal sealed unsafe class SdlHostWindow : IDisposable, IHostGamepadOutput
         }
 
         _baseTitle = title;
+        if (hidden)
+        {
+            return;
+        }
+
         PerfOverlay.Configure(_options);
         MoveToConfiguredDisplay();
         ApplyConfiguredMode(_options.WindowMode);

src/SharpEmu.Libs/VideoOut/VulkanVideoPresenter.cs

@@ -253,7 +253,7 @@ internal static unsafe partial class VulkanVideoPresenter
 
         private const ulong SwapchainAcquireTimeoutNs = 250_000_000;
 
-        public Presenter(uint width, uint height)
+        public Presenter(uint width, uint height, bool hidden = false)
         {
             _commandStream = new CommandStreamQueue(this);
             _relay = new GpuWorkerRelay(WakeRenderThread, _commandStream.TryEnqueueControlBarrier);
@@ -263,7 +263,8 @@ internal static unsafe partial class VulkanVideoPresenter
             _window = new SdlHostWindow(
                 VideoOutExports.GetWindowTitle(),
                 _videoOptions,
-                SdlGraphicsApi.Vulkan);
+                SdlGraphicsApi.Vulkan,
+                hidden: hidden);
         }
 
         public void Run()