[PATCH v2 2/4] dxgi: Implement IDXGIFactory6.

[Philip Rebohle]

Required by the D3D12 game "Delores: A Thimbleweed Park Mini-Adventure".

Signed-off-by: Philip Rebohle 
---
 dlls/dxgi/factory.c       | 20 ++++++++++++++++++++
 include/wine/winedxgi.idl |  2 +-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/dlls/dxgi/factory.c b/dlls/dxgi/factory.c
index 39c9e10f7a4..ab2cf755d8b 100644
--- a/dlls/dxgi/factory.c
+++ b/dlls/dxgi/factory.c
@@ -36,6 +36,7 @@ static HRESULT STDMETHODCALLTYPE dxgi_factory_QueryInterface(IWineDXGIFactory *i
     TRACE("iface %p, iid %s, out %p.\n", iface, debugstr_guid(iid), out);

if (IsEqualGUID(iid, &IID_IWineDXGIFactory)
+            || IsEqualGUID(iid, &IID_IDXGIFactory6)
             || IsEqualGUID(iid, &IID_IDXGIFactory5)
             || IsEqualGUID(iid, &IID_IDXGIFactory4)
             || IsEqualGUID(iid, &IID_IDXGIFactory3)
@@ -462,6 +463,23 @@ static HRESULT STDMETHODCALLTYPE dxgi_factory_CheckFeatureSupport(IWineDXGIFacto
     }
 }

+static HRESULT STDMETHODCALLTYPE dxgi_factory_EnumAdapterByGpuPreference(IWineDXGIFactory *iface,
+        UINT adapter_idx, DXGI_GPU_PREFERENCE gpu_preference, REFIID iid, void **adapter)
+{
+    IDXGIAdapter1 *adapter_object;
+    HRESULT hr;
+
+    if (gpu_preference != DXGI_GPU_PREFERENCE_UNSPECIFIED)
+        FIXME("Ignoring GPU preference %#x.\n", gpu_preference);
+
+    if (FAILED(hr = dxgi_factory_EnumAdapters1(iface, adapter_idx, &adapter_object)))
+        return hr;
+
+    hr = IDXGIAdapter1_QueryInterface(adapter_object, iid, adapter);
+    IDXGIAdapter1_Release(adapter_object);
+    return hr;
+}
+
 static const struct IWineDXGIFactoryVtbl dxgi_factory_vtbl =
 {
     dxgi_factory_QueryInterface,
@@ -498,6 +516,8 @@ static const struct IWineDXGIFactoryVtbl dxgi_factory_vtbl =
     dxgi_factory_EnumWarpAdapter,
     /* IDXIGFactory5 methods */
     dxgi_factory_CheckFeatureSupport,
+    /* IDXGIFactory6 methods */
+    dxgi_factory_EnumAdapterByGpuPreference,
 };

struct dxgi_factory *unsafe_impl_from_IDXGIFactory(IDXGIFactory *iface)
diff --git a/include/wine/winedxgi.idl b/include/wine/winedxgi.idl
index 070ac2fddaa..95c99b25355 100644
--- a/include/wine/winedxgi.idl
+++ b/include/wine/winedxgi.idl
@@ -89,6 +89,6 @@ interface IWineDXGIAdapter : IDXGIAdapter4
     local,
     uuid(ea02a0d1-4c95-488a-a82c-6034621e8c4f)
 ]
-interface IWineDXGIFactory : IDXGIFactory5
+interface IWineDXGIFactory : IDXGIFactory6
 {
 }