wined3d: Add a usage flag for static buffer declarations.

dlls/ddraw/direct3d.c

@@ -970,6 +970,7 @@ IDirect3DImpl_7_CreateVertexBuffer(IDirect3D7 *iface,
     IDirectDrawImpl *This = ddraw_from_d3d7(iface);
     IDirect3DVertexBufferImpl *object;
     HRESULT hr;
+    DWORD usage;
     TRACE("(%p)->(%p,%p,%08x)\n", This, Desc, VertexBuffer, Flags);
 
     TRACE("(%p) Vertex buffer description:\n", This);
@@ -1009,10 +1010,13 @@ IDirect3DImpl_7_CreateVertexBuffer(IDirect3D7 *iface,
     object->ddraw = This;
     object->fvf = Desc->dwFVF;
 
+    usage = Desc->dwCaps & D3DVBCAPS_WRITEONLY ? WINED3DUSAGE_WRITEONLY : 0;
+    usage |= WINED3DUSAGE_STATICDECL;
+
     EnterCriticalSection(&ddraw_cs);
     hr = IWineD3DDevice_CreateVertexBuffer(This->wineD3DDevice,
             get_flexible_vertex_size(Desc->dwFVF) * Desc->dwNumVertices,
-            Desc->dwCaps & D3DVBCAPS_WRITEONLY ? WINED3DUSAGE_WRITEONLY : 0, Desc->dwFVF,
+            usage, Desc->dwFVF,
             Desc->dwCaps & D3DVBCAPS_SYSTEMMEMORY ? WINED3DPOOL_SYSTEMMEM : WINED3DPOOL_DEFAULT,
             &object->wineD3DVertexBuffer, (IUnknown *)object, &ddraw_null_wined3d_parent_ops);
     if(hr != D3D_OK)

dlls/wined3d/buffer.c

@@ -325,8 +325,7 @@ static BOOL buffer_find_decl(struct wined3d_buffer *This)
      */
     if (This->flags & WINED3D_BUFFER_HASDESC)
     {
-        if(((IWineD3DImpl *)device->wineD3D)->dxVersion == 7 ||
-             This->resource.format_desc->format != WINED3DFMT_VERTEXDATA) return FALSE;
+        if(This->resource.usage & WINED3DUSAGE_STATICDECL) return FALSE;
     }
 
     TRACE("Finding vertex buffer conversion information\n");

dlls/wined3d/device.c

@@ -569,8 +569,8 @@ static HRESULT WINAPI IWineD3DDeviceImpl_CreateIndexBuffer(IWineD3DDevice *iface
         return WINED3DERR_OUTOFVIDEOMEMORY;
     }
 
-    hr = buffer_init(object, This, Length, Usage, WINED3DFMT_UNKNOWN,
-            Pool, GL_ELEMENT_ARRAY_BUFFER_ARB, NULL, parent, parent_ops);
+    hr = buffer_init(object, This, Length, Usage | WINED3DUSAGE_STATICDECL,
+            WINED3DFMT_UNKNOWN, Pool, GL_ELEMENT_ARRAY_BUFFER_ARB, NULL, parent, parent_ops);
     if (FAILED(hr))
     {
         WARN("Failed to initialize buffer, hr %#x\n", hr);

include/wine/wined3d.idl

@@ -901,6 +901,7 @@ const UINT WINED3DUSAGE_DYNAMIC                                 = 0x00000200;
 const UINT WINED3DUSAGE_AUTOGENMIPMAP                           = 0x00000400;
 const UINT WINED3DUSAGE_DMAP                                    = 0x00004000;
 const UINT WINED3DUSAGE_MASK                                    = 0x00004fff;
+const UINT WINED3DUSAGE_STATICDECL                              = 0x20000000;
 const UINT WINED3DUSAGE_OPTIMIZE                                = 0x40000000;
 const UINT WINED3DUSAGE_OVERLAY                                 = 0x80000000;