[vlc-devel] [PATCH 1/8] dxgi_fmt: add a helper function to detect the Xbox One

[Steve Lhomme]

From: Steve Lhomme <slhomme at matroska.org>

---
 modules/video_chroma/dxgi_fmt.c | 33 +++++++++++++++++++++++++++++++++
 modules/video_chroma/dxgi_fmt.h |  3 +++
 2 files changed, 36 insertions(+)

diff --git a/modules/video_chroma/dxgi_fmt.c b/modules/video_chroma/dxgi_fmt.c
index 67ffbf3..b404bfc 100644
--- a/modules/video_chroma/dxgi_fmt.c
+++ b/modules/video_chroma/dxgi_fmt.c
@@ -27,6 +27,10 @@
 #include "dxgi_fmt.h"
 #include <vlc_es.h>
 
+#define COBJMACROS
+#include <initguid.h>
+#include <d3d11.h>
+
 typedef struct
 {
     const char   *name;
@@ -118,3 +122,32 @@ void DxgiFormatMask(DXGI_FORMAT format, video_format_t *fmt)
         fmt->i_bmask = 0xff000000;
     }
 }
+
+bool isXboxHardware(ID3D11Device *d3ddev)
+{
+    IDXGIDevice *pDXGIDevice = NULL;
+    HRESULT hr = ID3D11Device_QueryInterface(d3ddev, &IID_IDXGIDevice, (void **)&pDXGIDevice);
+    if (FAILED(hr)) {
+        return false;
+    }
+
+    IDXGIAdapter *p_adapter;
+    hr = IDXGIDevice_GetAdapter(pDXGIDevice, &p_adapter);
+    if (FAILED(hr)) {
+        IDXGIDevice_Release(pDXGIDevice);
+        return false;
+    }
+
+    bool result = false;
+    DXGI_ADAPTER_DESC adapterDesc;
+    if (SUCCEEDED(IDXGIAdapter_GetDesc(p_adapter, &adapterDesc))) {
+        if (adapterDesc.VendorId == 0 &&
+            adapterDesc.DeviceId == 0 &&
+            !wcscmp(L"ROOT\\SraKmd\\0000", adapterDesc.Description))
+            result = true;
+    }
+
+    IDXGIAdapter_Release(p_adapter);
+    IDXGIDevice_Release(pDXGIDevice);
+    return result;
+}
diff --git a/modules/video_chroma/dxgi_fmt.h b/modules/video_chroma/dxgi_fmt.h
index 8f2e3bb..ce6d15b 100644
--- a/modules/video_chroma/dxgi_fmt.h
+++ b/modules/video_chroma/dxgi_fmt.h
@@ -45,4 +45,7 @@ extern vlc_fourcc_t DxgiFormatFourcc(DXGI_FORMAT format);
 extern const d3d_format_t *GetRenderFormatList(void);
 extern void DxgiFormatMask(DXGI_FORMAT format, video_format_t *);
 
+typedef struct ID3D11Device ID3D11Device;
+extern bool isXboxHardware(ID3D11Device *d3ddev);
+
 #endif /* include-guard */
-- 
2.10.2