[PATCH 6/9] include: Add IDXGIFactory6.

[Henri Verbeet]

From: Philip Rebohle

Signed-off-by: Philip Rebohle 
Signed-off-by: Henri Verbeet 
---
This supersedes patch 185151.
Fix the "adapter" parameter name, as pointed out by Zhiyi.

include/dxgi1_6.idl | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/include/dxgi1_6.idl b/include/dxgi1_6.idl
index 9dcf9f26b46..fba72d57604 100644
--- a/include/dxgi1_6.idl
+++ b/include/dxgi1_6.idl
@@ -34,6 +34,13 @@ typedef enum DXGI_HARDWARE_COMPOSITION_SUPPORT_FLAGS
     DXGI_HARDWARE_COMPOSITION_SUPPORT_FLAG_CURSOR_STRETCHED = 0x4,
 } DXGI_HARDWARE_COMPOSITION_SUPPORT_FLAGS;

+typedef enum DXGI_GPU_PREFERENCE
+{
+    DXGI_GPU_PREFERENCE_UNSPECIFIED = 0x0,
+    DXGI_GPU_PREFERENCE_MINIMUM_POWER = 0x1,
+    DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE = 0x2,
+} DXGI_GPU_PREFERENCE;
+
 typedef struct DXGI_ADAPTER_DESC3
 {
     WCHAR Description[128];
@@ -96,3 +103,19 @@ interface IDXGIOutput6 : IDXGIOutput5
         [out] UINT *flags
     );
 }
+
+[
+    object,
+    uuid(c1b6694f-ff09-44a9-b03c-77900a0a1d17),
+    local,
+    pointer_default(unique)
+]
+interface IDXGIFactory6 : IDXGIFactory5
+{
+    HRESULT EnumAdapterByGpuPreference(
+        [in] UINT adapter_idx,
+        [in] DXGI_GPU_PREFERENCE gpu_preference,
+        [in] REFIID iid,
+        [out] void **adapter
+    );
+}