feature: first

CringeLauncher/Patches/SwapChainPatch.cs

@@ -0,0 +1,85 @@
+using HarmonyLib;
+using SharpDX.Direct3D11;
+using SharpDX.DXGI;
+using VRage.Platform.Windows.Render;
+using VRage.Render11.Resources;
+using VRageRender;
+
+namespace CringeLauncher.Patches;
+
+[HarmonyPatch]
+public static class SwapChainPatch
+{
+    internal static nint WindowHandle;
+
+    [HarmonyPrefix, HarmonyPatch(typeof(MyPlatformRender), nameof(MyPlatformRender.CreateSwapChain))]
+    private static bool SwapChainPrefix(nint windowHandle)
+    {
+        WindowHandle = windowHandle;
+        MyPlatformRender.DisposeSwapChain();
+        MyPlatformRender.Log.WriteLine("CreateDeviceInternal create swapchain");
+        
+        if (MyPlatformRender.m_swapchain != null)
+            return false;
+        
+        var chainDescription = new SwapChainDescription
+        {
+            BufferCount = 2,
+            Flags = SwapChainFlags.AllowModeSwitch,
+            IsWindowed = true,
+            ModeDescription = MyPlatformRender.GetCurrentModeDescriptor(MyPlatformRender.m_settings) with
+            {
+                Format = Format.R8G8B8A8_UNorm
+            },
+            SampleDescription = {
+                Count = 1,
+                Quality = 0
+            },
+            OutputHandle = windowHandle,
+            Usage = Usage.ShaderInput | Usage.RenderTargetOutput,
+            SwapEffect = SwapEffect.Discard
+        };
+        
+        var factory = MyPlatformRender.GetFactory();
+        try
+        {
+            MyPlatformRender.m_swapchain = new SwapChain(factory, MyPlatformRender.DeviceInstance, chainDescription);
+        }
+        catch (Exception)
+        {
+            MyPlatformRender.Log.WriteLine("SwapChain factory = " + factory);
+            MyPlatformRender.Log.WriteLine("SwapChain Device = " + MyPlatformRender.DeviceInstance);
+            MyPlatformRender.PrintSwapChainDescriptionToLog(chainDescription);
+            throw;
+        }
+        factory.MakeWindowAssociation(windowHandle, WindowAssociationFlags.IgnoreAll);
+
+        return false;
+    }
+
+    [HarmonyPostfix, HarmonyPatch(typeof(MyRender11), nameof(MyRender11.CreateDeviceInternal))]
+    private static void CreateDevicePostfix()
+    {
+        ImGuiHandler.Instance ??= new ImGuiHandler(WindowHandle, MyRender11.DeviceInstance, MyRender11.RC.DeviceContext);
+    }
+    
+    [HarmonyPrefix, HarmonyPatch(typeof(MyBackbuffer), MethodType.Constructor, typeof(SharpDX.Direct3D11.Resource))]
+    private static bool SwapChainBBPrefix(MyBackbuffer __instance, SharpDX.Direct3D11.Resource swapChainBB)
+    {
+        __instance.m_resource = swapChainBB;
+        __instance.m_rtv = new RenderTargetView(MyRender11.DeviceInstance, swapChainBB, new()
+        {
+            Format = Format.R8G8B8A8_UNorm_SRgb,
+            Dimension = RenderTargetViewDimension.Texture2D,
+        });
+        __instance.m_srv = new ShaderResourceView(MyRender11.DeviceInstance, swapChainBB);
+            
+        ImGuiHandler.Rtv = new RenderTargetView(MyRender11.DeviceInstance, swapChainBB, new()
+        {
+            Format = Format.R8G8B8A8_UNorm,
+            Dimension = RenderTargetViewDimension.Texture2D,
+        });
+            
+        return false;
+    }
+}