From 3e8a6ec46307447a855da3c8e05da71eb6a43498 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 19 Sep 2019 16:38:01 +0200
Subject: [PATCH] [dxgi] Implement IDXGIFactory5

---
 src/dxgi/dxgi_factory.cpp | 26 ++++++++++++++++++++++++--
 src/dxgi/dxgi_factory.h   |  9 +++++++--
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/src/dxgi/dxgi_factory.cpp b/src/dxgi/dxgi_factory.cpp
index 695d22abd..4da066722 100644
--- a/src/dxgi/dxgi_factory.cpp
+++ b/src/dxgi/dxgi_factory.cpp
@@ -30,7 +30,8 @@ namespace dxvk {
      || riid == __uuidof(IDXGIFactory1)
      || riid == __uuidof(IDXGIFactory2)
      || riid == __uuidof(IDXGIFactory3)
-     || riid == __uuidof(IDXGIFactory4)) {
+     || riid == __uuidof(IDXGIFactory4)
+     || riid == __uuidof(IDXGIFactory5)) {
       *ppvObject = ref(this);
       return S_OK;
     }
@@ -310,5 +311,26 @@ namespace dxvk {
   UINT STDMETHODCALLTYPE DxgiFactory::GetCreationFlags() {
     return m_flags;
   }
-  
+
+
+  HRESULT STDMETHODCALLTYPE DxgiFactory::CheckFeatureSupport(
+          DXGI_FEATURE          Feature,
+          void*                 pFeatureSupportData,
+          UINT                  FeatureSupportDataSize) {
+    switch (Feature) {
+      case DXGI_FEATURE_PRESENT_ALLOW_TEARING: {
+        auto info = static_cast<BOOL*>(pFeatureSupportData);
+
+        if (FeatureSupportDataSize != sizeof(*info))
+          return E_INVALIDARG;
+        
+        *info = TRUE;
+      } return S_OK;
+
+      default:
+        Logger::err(str::format("DxgiFactory: CheckFeatureSupport: Unknown feature: ", uint32_t(Feature)));
+        return E_INVALIDARG;
+    }
+  }
+
 }
diff --git a/src/dxgi/dxgi_factory.h b/src/dxgi/dxgi_factory.h
index 8083b6fde..3a5123a8c 100644
--- a/src/dxgi/dxgi_factory.h
+++ b/src/dxgi/dxgi_factory.h
@@ -10,7 +10,7 @@
 
 namespace dxvk {
     
-  class DxgiFactory : public DxgiObject<IDXGIFactory4> {
+  class DxgiFactory : public DxgiObject<IDXGIFactory5> {
     
   public:
     
@@ -112,7 +112,12 @@ namespace dxvk {
             DWORD                 dwCookie) final;
     
     UINT STDMETHODCALLTYPE GetCreationFlags() final;
-    
+
+    HRESULT STDMETHODCALLTYPE CheckFeatureSupport(
+            DXGI_FEATURE          Feature,
+            void*                 pFeatureSupportData,
+            UINT                  FeatureSupportDataSize) final;
+
     const DxgiOptions* GetOptions() const {
       return &m_options;
     }