wined3d: Enable two sided stencil in the caps.

dlls/wined3d/directx.c

@@ -1635,6 +1635,11 @@ static HRESULT WINAPI IWineD3DImpl_GetDeviceCaps(IWineD3D *iface, UINT Adapter,
       *pCaps->StencilCaps |= D3DSTENCILCAPS_DECR  |
                              D3DSTENCILCAPS_INCR;
     }
+    if ( This->dxVersion > 8 &&
+        ( GL_SUPPORT(EXT_STENCIL_TWO_SIDE) ||
+            GL_SUPPORT(ATI_SEPARATE_STENCIL) ) ) {
+        *pCaps->StencilCaps |= D3DSTENCILCAPS_TWOSIDED;
+    }
 
     *pCaps->FVFCaps = D3DFVFCAPS_PSIZE | 0x0008; /* 8 texture coords */
 

include/d3d9caps.h

@@ -187,6 +187,7 @@
 #define D3DSTENCILCAPS_INVERT                    0x20
 #define D3DSTENCILCAPS_INCR                      0x40
 #define D3DSTENCILCAPS_DECR                      0x80
+#define D3DSTENCILCAPS_TWOSIDED                  0x100
 
 #define D3DTEXOPCAPS_DISABLE                     0x0000001
 #define D3DTEXOPCAPS_SELECTARG1                  0x0000002

include/d3dcaps.h

@@ -311,6 +311,7 @@ typedef struct _D3DDeviceDesc7 {
 #define D3DSTENCILCAPS_INVERT   0x00000020
 #define D3DSTENCILCAPS_INCR     0x00000040
 #define D3DSTENCILCAPS_DECR     0x00000080
+#define D3DSTENCILCAPS_TWOSIDED 0x00000100
 
 #define D3DTEXOPCAPS_DISABLE                    0x00000001
 #define D3DTEXOPCAPS_SELECTARG1                 0x00000002