From e281eee795bd4e0194446687dfd8ca5dd9b2351c Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Wed, 9 Jun 2021 03:47:20 +0200
Subject: [PATCH] [dxgi] Add NotifyModeChange method to IDXGIVkSwapChain

---
 src/d3d11/d3d11_swapchain.cpp | 16 ++++++++++++++++
 src/d3d11/d3d11_swapchain.h   |  4 ++++
 src/dxgi/dxgi_interfaces.h    |  4 ++++
 3 files changed, 24 insertions(+)

diff --git a/src/d3d11/d3d11_swapchain.cpp b/src/d3d11/d3d11_swapchain.cpp
index a78515df1..c250bf77e 100644
--- a/src/d3d11/d3d11_swapchain.cpp
+++ b/src/d3d11/d3d11_swapchain.cpp
@@ -233,6 +233,22 @@ namespace dxvk {
   }
 
 
+  void STDMETHODCALLTYPE D3D11SwapChain::NotifyModeChange(
+          BOOL                      Windowed,
+    const DXGI_MODE_DESC*           pDisplayMode) {
+    if (Windowed || !pDisplayMode) {
+      // Display modes aren't meaningful in windowed mode
+      m_displayRefreshRate = 0.0;
+    } else {
+      DXGI_RATIONAL rate = pDisplayMode->RefreshRate;
+      m_displayRefreshRate = double(rate.Numerator) / double(rate.Denominator);
+    }
+
+    if (m_presenter != nullptr)
+      m_presenter->setFrameRateLimiterRefreshRate(m_displayRefreshRate);
+  }
+
+
   HRESULT D3D11SwapChain::PresentImage(UINT SyncInterval) {
     Com<ID3D11DeviceContext> deviceContext = nullptr;
     m_parent->GetImmediateContext(&deviceContext);
diff --git a/src/d3d11/d3d11_swapchain.h b/src/d3d11/d3d11_swapchain.h
index 65e1f5f96..530fdca3e 100644
--- a/src/d3d11/d3d11_swapchain.h
+++ b/src/d3d11/d3d11_swapchain.h
@@ -69,6 +69,10 @@ namespace dxvk {
             UINT                      PresentFlags,
       const DXGI_PRESENT_PARAMETERS*  pPresentParameters);
 
+    void STDMETHODCALLTYPE NotifyModeChange(
+            BOOL                      Windowed,
+      const DXGI_MODE_DESC*           pDisplayMode);
+
   private:
 
     enum BindingIds : uint32_t {
diff --git a/src/dxgi/dxgi_interfaces.h b/src/dxgi/dxgi_interfaces.h
index 427f3976f..f7a939503 100644
--- a/src/dxgi/dxgi_interfaces.h
+++ b/src/dxgi/dxgi_interfaces.h
@@ -75,6 +75,10 @@ IDXGIVkSwapChain : public IUnknown {
           UINT                      SyncInterval,
           UINT                      PresentFlags,
     const DXGI_PRESENT_PARAMETERS*  pPresentParameters) = 0;
+
+  virtual void STDMETHODCALLTYPE NotifyModeChange(
+          BOOL                      Windowed,
+    const DXGI_MODE_DESC*           pDisplayMode) = 0;
 };