[PATCH v4] win32u: Cache GL driver functions in DC. - wine-devel

18 Feb 2022

Signed-off-by: Paul Gofman pgofman@codeweavers.com
---
v4:
     - move wine_get_wgl_driver() to user driver and add a special case for dibdrv.
dlls/user32/driver.c        |  4 ++-
 dlls/win32u/dc.c            | 58 +++++++++++++++++++++++++------------
 dlls/win32u/dibdrv/dc.c     | 11 +------
 dlls/win32u/driver.c        | 36 +++++++++++++++--------
 dlls/win32u/emfdrv.c        |  1 -
 dlls/win32u/font.c          |  1 -
 dlls/win32u/ntgdi_private.h | 25 ++++++++++++++++
 dlls/win32u/path.c          |  1 -
 dlls/wineandroid.drv/init.c | 13 ++-------
 dlls/winemac.drv/gdi.c      |  2 +-
 dlls/winemac.drv/macdrv.h   |  2 +-
 dlls/winemac.drv/opengl.c   |  2 +-
 dlls/wineps.drv/init.c      |  1 -
 dlls/winex11.drv/init.c     | 13 ++-------
 dlls/winex11.drv/xrender.c  |  1 -
 include/wine/gdi_driver.h   |  3 +-
 16 files changed, 103 insertions(+), 71 deletions(-)

diff --git a/dlls/user32/driver.c b/dlls/user32/driver.c
index 7e9f63ad1c7..2c5497761a0 100644
--- a/dlls/user32/driver.c
+++ b/dlls/user32/driver.c
@@ -394,7 +394,9 @@ static struct user_driver_funcs lazy_load_driver =
     /* vulkan support */
     NULL,
     /* thread management */
-    NULL
+    NULL,
+    /* opengl support */
+    NULL,
 };
void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT version )
diff --git a/dlls/win32u/dc.c b/dlls/win32u/dc.c
index aed2d3684a7..e7ebb57776b 100644
--- a/dlls/win32u/dc.c
+++ b/dlls/win32u/dc.c
@@ -63,25 +63,6 @@ static const struct gdi_obj_funcs dc_funcs =
 };
-static inline DC *get_dc_obj( HDC hdc )
-{
-    DWORD type;
-    DC *dc = get_any_obj_ptr( hdc, &type );
-    if (!dc) return NULL;
-
-    switch (type)
-    {
-    case NTGDI_OBJ_DC:
-    case NTGDI_OBJ_MEMDC:
-    case NTGDI_OBJ_ENHMETADC:
-        return dc;
-    default:
-        GDI_ReleaseObj( hdc );
-        SetLastError( ERROR_INVALID_HANDLE );
-        return NULL;
-    }
-}
-
 /* alloc DC_ATTR from a pool of memory accessible from client */
 static DC_ATTR *alloc_dc_attr(void)
 {
@@ -310,6 +291,43 @@ DC *get_dc_ptr( HDC hdc )
 }
+/***********************************************************************
+ *           grab_dc
+ *
+ * Retrieve a DC pointer, increase ref count and release the GDI lock.
+ */
+DC *grab_dc( HDC hdc )
+{
+    DC *dc;
+
+    if (!GDI_inc_ref_count( hdc )) return NULL;
+    if (!(dc = get_dc_obj( hdc )))
+    {
+        GDI_dec_ref_count( hdc );
+        return NULL;
+    }
+    if (dc->attr->disabled)
+    {
+        GDI_dec_ref_count( hdc );
+        GDI_ReleaseObj( hdc );
+        return NULL;
+    }
+    GDI_ReleaseObj( hdc );
+    return dc;
+}
+
+
+/***********************************************************************
+ *           put_dc
+ *
+ * Decrease ref count previously increased by grab_dc().
+ */
+void put_dc( HDC hdc )
+{
+    GDI_dec_ref_count( hdc );
+}
+
+
 /***********************************************************************
  *           release_dc_ptr
  */
@@ -816,6 +834,8 @@ HDC WINAPI NtGdiCreateCompatibleDC( HDC hdc )
         free_dc_ptr( dc );
         return 0;
     }
+    dc->dibdrv = TRUE;
+
     physDev = GET_DC_PHYSDEV( dc, pSelectBitmap );
     physDev->funcs->pSelectBitmap( physDev, dc->hBitmap );
diff --git a/dlls/win32u/dibdrv/dc.c b/dlls/win32u/dibdrv/dc.c
index a96b613d0a3..a91cd76f936 100644
--- a/dlls/win32u/dibdrv/dc.c
+++ b/dlls/win32u/dibdrv/dc.c
@@ -605,7 +605,7 @@ static struct opengl_funcs opengl_funcs =
 /**********************************************************************
  *	     dibdrv_wine_get_wgl_driver
  */
-static struct opengl_funcs * CDECL dibdrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
+struct opengl_funcs *dibdrv_wine_get_wgl_driver( UINT version )
 {
     if (version != WINE_WGL_DRIVER_VERSION)
     {
@@ -715,7 +715,6 @@ const struct gdi_dc_funcs dib_driver =
     NULL,                               /* pUnrealizePalette */
     NULL,                               /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                               /* pD3DKMTSetVidPnSourceOwner */
-    dibdrv_wine_get_wgl_driver,         /* wine_get_wgl_driver */
     GDI_PRIORITY_DIB_DRV                /* priority */
 };
@@ -1177,13 +1176,6 @@ static INT CDECL windrv_StretchDIBits( PHYSDEV dev, INT x_dst, INT y_dst, INT wi
     return ret;
 }
-static struct opengl_funcs * CDECL windrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
-{
-    dev = GET_NEXT_PHYSDEV( dev, wine_get_wgl_driver );
-    if (dev->funcs == &dib_driver) dev = GET_NEXT_PHYSDEV( dev, wine_get_wgl_driver );
-    return dev->funcs->wine_get_wgl_driver( dev, version );
-}
-
 static const struct gdi_dc_funcs window_driver =
 {
     NULL,                               /* pAbortDoc */
@@ -1277,6 +1269,5 @@ static const struct gdi_dc_funcs window_driver =
     NULL,                               /* pUnrealizePalette */
     NULL,                               /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                               /* pD3DKMTSetVidPnSourceOwner */
-    windrv_wine_get_wgl_driver,         /* wine_get_wgl_driver */
     GDI_PRIORITY_DIB_DRV + 10           /* priority */
 };
diff --git a/dlls/win32u/driver.c b/dlls/win32u/driver.c
index 5e6cee33bc6..ea7165bc3ae 100644
--- a/dlls/win32u/driver.c
+++ b/dlls/win32u/driver.c
@@ -571,11 +571,6 @@ static NTSTATUS CDECL nulldrv_D3DKMTSetVidPnSourceOwner( const D3DKMT_SETVIDPNSO
     return STATUS_PROCEDURE_NOT_FOUND;
 }
-static struct opengl_funcs * CDECL nulldrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
-{
-    return (void *)-1;
-}
-
 const struct gdi_dc_funcs null_driver =
 {
     nulldrv_AbortDoc,                   /* pAbortDoc */
@@ -669,7 +664,6 @@ const struct gdi_dc_funcs null_driver =
     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
     nulldrv_D3DKMTCheckVidPnExclusiveOwnership, /* pD3DKMTCheckVidPnExclusiveOwnership */
     nulldrv_D3DKMTSetVidPnSourceOwner,  /* pD3DKMTSetVidPnSourceOwner */
-    nulldrv_wine_get_wgl_driver,        /* wine_get_wgl_driver */
GDI_PRIORITY_NULL_DRV               /* priority */
 };
@@ -1373,14 +1367,32 @@ NTSTATUS WINAPI NtGdiDdDDICheckVidPnExclusiveOwnership( const D3DKMT_CHECKVIDPNE
  */
 struct opengl_funcs * CDECL __wine_get_wgl_driver( HDC hdc, UINT version )
 {
-    struct opengl_funcs *ret = NULL;
-    DC * dc = get_dc_ptr( hdc );
+    struct opengl_funcs *ret;
+    PHYSDEV physdev;
+    BOOL dibdrv;
+    DC * dc;
+
+    if (!(dc = get_dc_obj( hdc ))) return NULL;
+    if (dc->attr->disabled)
+    {
+        GDI_ReleaseObj( hdc );
+        return NULL;
+    }
+    ret = dc->gl_funcs;
+    dibdrv = dc->dibdrv;
+    GDI_ReleaseObj( hdc );
+
+    if (ret) return ret;
-    if (dc)
+    if (dibdrv) ret = dibdrv_wine_get_wgl_driver( version );
+    else
     {
-        PHYSDEV physdev = GET_DC_PHYSDEV( dc, wine_get_wgl_driver );
-        ret = physdev->funcs->wine_get_wgl_driver( physdev, version );
-        release_dc_ptr( dc );
+        if (user_driver->pwine_get_wgl_driver) ret = user_driver->pwine_get_wgl_driver( version );
+        else                                   ret = (void *)-1;
     }
+    if (!(dc = get_dc_obj( hdc ))) return NULL;
+    if (!dc->gl_funcs) dc->gl_funcs = ret;
+    else               ret = dc->gl_funcs;
+    GDI_ReleaseObj( hdc );
     return ret;
 }
diff --git a/dlls/win32u/emfdrv.c b/dlls/win32u/emfdrv.c
index f261a86e392..81481953288 100644
--- a/dlls/win32u/emfdrv.c
+++ b/dlls/win32u/emfdrv.c
@@ -524,7 +524,6 @@ static const struct gdi_dc_funcs emfdrv_driver =
     NULL,                            /* pUnrealizePalette */
     NULL,                            /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                            /* pD3DKMTSetVidPnSourceOwner */
-    NULL,                            /* wine_get_wgl_driver */
     GDI_PRIORITY_GRAPHICS_DRV        /* priority */
 };
diff --git a/dlls/win32u/font.c b/dlls/win32u/font.c
index b8213ac9e6a..87ef75f04af 100644
--- a/dlls/win32u/font.c
+++ b/dlls/win32u/font.c
@@ -4351,7 +4351,6 @@ const struct gdi_dc_funcs font_driver =
     NULL,                           /* pUnrealizePalette */
     NULL,                           /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                           /* pD3DKMTSetVidPnSourceOwner */
-    NULL,                           /* wine_get_wgl_driver */
     GDI_PRIORITY_FONT_DRV           /* priority */
 };
diff --git a/dlls/win32u/ntgdi_private.h b/dlls/win32u/ntgdi_private.h
index bfeb4557da7..f256ed36d38 100644
--- a/dlls/win32u/ntgdi_private.h
+++ b/dlls/win32u/ntgdi_private.h
@@ -59,6 +59,7 @@ typedef struct tagDC
     DCHOOKPROC   hookProc;         /* DC hook */
     BOOL         bounds_enabled:1; /* bounds tracking is enabled */
     BOOL         path_open:1;      /* path is currently open (only for saved DCs) */
+    BOOL         dibdrv:1;         /* memory DC */
RECT         device_rect;      /* rectangle for the whole device */
     int          pixel_format;     /* pixel format (for memory DCs) */
@@ -87,6 +88,8 @@ typedef struct tagDC
     XFORM         xformVport2World;  /* Inverse of the above transformation */
     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
     RECT          bounds;            /* Current bounding rect */
+
+    struct opengl_funcs *gl_funcs;   /* Opengl driver functions */
 } DC;
/* Certain functions will do no further processing if the driver returns this.
@@ -170,6 +173,8 @@ static inline HRGN get_dc_region( DC *dc )
 extern DC *alloc_dc_ptr( DWORD magic ) DECLSPEC_HIDDEN;
 extern void free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
 extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
+extern DC *grab_dc( HDC hdc ) DECLSPEC_HIDDEN;
+extern void put_dc( HDC hdc ) DECLSPEC_HIDDEN;
 extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
 extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
 extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
@@ -206,6 +211,7 @@ extern UINT get_dib_dc_color_table( HDC hdc, UINT startpos, UINT entries,
 extern UINT set_dib_dc_color_table( HDC hdc, UINT startpos, UINT entries,
                                     const RGBQUAD *colors ) DECLSPEC_HIDDEN;
 extern void dibdrv_set_window_surface( DC *dc, struct window_surface *surface ) DECLSPEC_HIDDEN;
+extern struct opengl_funcs *dibdrv_wine_get_wgl_driver( UINT version ) DECLSPEC_HIDDEN;
/* driver.c */
 extern const struct gdi_dc_funcs null_driver DECLSPEC_HIDDEN;
@@ -660,6 +666,25 @@ static inline void copy_bitmapinfo( BITMAPINFO *dst, const BITMAPINFO *src )
     memcpy( dst, src, get_dib_info_size( src, DIB_RGB_COLORS ));
 }
+static inline DC *get_dc_obj( HDC hdc )
+{
+    DWORD type;
+    DC *dc = get_any_obj_ptr( hdc, &type );
+    if (!dc) return NULL;
+
+    switch (type)
+    {
+    case NTGDI_OBJ_DC:
+    case NTGDI_OBJ_MEMDC:
+    case NTGDI_OBJ_ENHMETADC:
+        return dc;
+    default:
+        GDI_ReleaseObj( hdc );
+        SetLastError( ERROR_INVALID_HANDLE );
+        return NULL;
+    }
+}
+
 extern void CDECL free_heap_bits( struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
void set_gdi_client_ptr( HGDIOBJ handle, void *ptr ) DECLSPEC_HIDDEN;
diff --git a/dlls/win32u/path.c b/dlls/win32u/path.c
index a87a7ab06c2..93a124953af 100644
--- a/dlls/win32u/path.c
+++ b/dlls/win32u/path.c
@@ -2121,6 +2121,5 @@ const struct gdi_dc_funcs path_driver =
     NULL,                               /* pUnrealizePalette */
     NULL,                               /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                               /* pD3DKMTSetVidPnSourceOwner */
-    NULL,                               /* wine_get_wgl_driver */
     GDI_PRIORITY_PATH_DRV               /* priority */
 };
diff --git a/dlls/wineandroid.drv/init.c b/dlls/wineandroid.drv/init.c
index ed9116eb47e..7c103475e6b 100644
--- a/dlls/wineandroid.drv/init.c
+++ b/dlls/wineandroid.drv/init.c
@@ -261,16 +261,9 @@ BOOL CDECL ANDROID_EnumDisplaySettingsEx( LPCWSTR name, DWORD n, LPDEVMODEW devm
 /**********************************************************************
  *           ANDROID_wine_get_wgl_driver
  */
-static struct opengl_funcs * CDECL ANDROID_wine_get_wgl_driver( PHYSDEV dev, UINT version )
+static struct opengl_funcs * CDECL ANDROID_wine_get_wgl_driver( UINT version )
 {
-    struct opengl_funcs *ret;
-
-    if (!(ret = get_wgl_driver( version )))
-    {
-        dev = GET_NEXT_PHYSDEV( dev, wine_get_wgl_driver );
-        ret = dev->funcs->wine_get_wgl_driver( dev, version );
-    }
-    return ret;
+    return get_wgl_driver( version );
 }
@@ -279,7 +272,6 @@ static const struct user_driver_funcs android_drv_funcs =
     .dc_funcs.pCreateCompatibleDC = ANDROID_CreateCompatibleDC,
     .dc_funcs.pCreateDC = ANDROID_CreateDC,
     .dc_funcs.pDeleteDC = ANDROID_DeleteDC,
-    .dc_funcs.wine_get_wgl_driver = ANDROID_wine_get_wgl_driver,
     .dc_funcs.priority = GDI_PRIORITY_GRAPHICS_DRV,
.pGetKeyNameText = ANDROID_GetKeyNameText,
@@ -302,6 +294,7 @@ static const struct user_driver_funcs android_drv_funcs =
     .pWindowMessage = ANDROID_WindowMessage,
     .pWindowPosChanging = ANDROID_WindowPosChanging,
     .pWindowPosChanged = ANDROID_WindowPosChanged,
+    .pwine_get_wgl_driver = ANDROID_wine_get_wgl_driver,
 };
diff --git a/dlls/winemac.drv/gdi.c b/dlls/winemac.drv/gdi.c
index 40ba4c570c5..264781c6ac1 100644
--- a/dlls/winemac.drv/gdi.c
+++ b/dlls/winemac.drv/gdi.c
@@ -268,7 +268,6 @@ static const struct user_driver_funcs macdrv_funcs =
     .dc_funcs.pGetDeviceCaps = macdrv_GetDeviceCaps,
     .dc_funcs.pGetDeviceGammaRamp = macdrv_GetDeviceGammaRamp,
     .dc_funcs.pSetDeviceGammaRamp = macdrv_SetDeviceGammaRamp,
-    .dc_funcs.wine_get_wgl_driver = macdrv_wine_get_wgl_driver,
     .dc_funcs.priority = GDI_PRIORITY_GRAPHICS_DRV,
.pActivateKeyboardLayout = macdrv_ActivateKeyboardLayout,
@@ -309,6 +308,7 @@ static const struct user_driver_funcs macdrv_funcs =
     .pWindowPosChanged = macdrv_WindowPosChanged,
     .pWindowPosChanging = macdrv_WindowPosChanging,
     .pwine_get_vulkan_driver = macdrv_wine_get_vulkan_driver,
+    .pwine_get_wgl_driver = macdrv_wine_get_wgl_driver,
 };
diff --git a/dlls/winemac.drv/macdrv.h b/dlls/winemac.drv/macdrv.h
index 0bd0a18f111..4e4524722af 100644
--- a/dlls/winemac.drv/macdrv.h
+++ b/dlls/winemac.drv/macdrv.h
@@ -263,7 +263,7 @@ extern DWORD CDECL macdrv_MsgWaitForMultipleObjectsEx(DWORD count, const HANDLE
 extern BOOL query_drag_exited(macdrv_query* query) DECLSPEC_HIDDEN;
 extern BOOL query_drag_drop(macdrv_query* query) DECLSPEC_HIDDEN;
-extern struct opengl_funcs * CDECL macdrv_wine_get_wgl_driver(PHYSDEV dev, UINT version) DECLSPEC_HIDDEN;
+extern struct opengl_funcs * CDECL macdrv_wine_get_wgl_driver(UINT version) DECLSPEC_HIDDEN;
 extern const struct vulkan_funcs * CDECL macdrv_wine_get_vulkan_driver(UINT version) DECLSPEC_HIDDEN;
 extern void sync_gl_view(struct macdrv_win_data* data, const RECT* old_whole_rect, const RECT* old_client_rect) DECLSPEC_HIDDEN;
diff --git a/dlls/winemac.drv/opengl.c b/dlls/winemac.drv/opengl.c
index daf194c2aec..02ac613ddc9 100644
--- a/dlls/winemac.drv/opengl.c
+++ b/dlls/winemac.drv/opengl.c
@@ -4632,7 +4632,7 @@ static struct opengl_funcs opengl_funcs =
 /**********************************************************************
  *              macdrv_wine_get_wgl_driver
  */
-struct opengl_funcs * CDECL macdrv_wine_get_wgl_driver(PHYSDEV dev, UINT version)
+struct opengl_funcs * CDECL macdrv_wine_get_wgl_driver(UINT version)
 {
     static INIT_ONCE opengl_init = INIT_ONCE_STATIC_INIT;
diff --git a/dlls/wineps.drv/init.c b/dlls/wineps.drv/init.c
index 9e32bf31d1f..5a01a97973f 100644
--- a/dlls/wineps.drv/init.c
+++ b/dlls/wineps.drv/init.c
@@ -858,7 +858,6 @@ static const struct gdi_dc_funcs psdrv_funcs =
     NULL,                               /* pUnrealizePalette */
     NULL,                               /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                               /* pD3DKMTSetVidPnSourceOwner */
-    NULL,                               /* wine_get_wgl_driver */
     GDI_PRIORITY_GRAPHICS_DRV           /* priority */
 };
diff --git a/dlls/winex11.drv/init.c b/dlls/winex11.drv/init.c
index 5b31c352a23..35bf47c2e74 100644
--- a/dlls/winex11.drv/init.c
+++ b/dlls/winex11.drv/init.c
@@ -312,16 +312,9 @@ static INT CDECL X11DRV_ExtEscape( PHYSDEV dev, INT escape, INT in_count, LPCVOI
 /**********************************************************************
  *           X11DRV_wine_get_wgl_driver
  */
-static struct opengl_funcs * CDECL X11DRV_wine_get_wgl_driver( PHYSDEV dev, UINT version )
+static struct opengl_funcs * CDECL X11DRV_wine_get_wgl_driver( UINT version )
 {
-    struct opengl_funcs *ret;
-
-    if (!(ret = get_glx_driver( version )))
-    {
-        dev = GET_NEXT_PHYSDEV( dev, wine_get_wgl_driver );
-        ret = dev->funcs->wine_get_wgl_driver( dev, version );
-    }
-    return ret;
+    return get_glx_driver( version );
 }
/**********************************************************************
@@ -377,7 +370,6 @@ static const struct user_driver_funcs x11drv_funcs =
     .dc_funcs.pUnrealizePalette = X11DRV_UnrealizePalette,
     .dc_funcs.pD3DKMTCheckVidPnExclusiveOwnership = X11DRV_D3DKMTCheckVidPnExclusiveOwnership,
     .dc_funcs.pD3DKMTSetVidPnSourceOwner = X11DRV_D3DKMTSetVidPnSourceOwner,
-    .dc_funcs.wine_get_wgl_driver = X11DRV_wine_get_wgl_driver,
     .dc_funcs.priority = GDI_PRIORITY_GRAPHICS_DRV,
.pActivateKeyboardLayout = X11DRV_ActivateKeyboardLayout,
@@ -418,6 +410,7 @@ static const struct user_driver_funcs x11drv_funcs =
     .pWindowPosChanging = X11DRV_WindowPosChanging,
     .pWindowPosChanged = X11DRV_WindowPosChanged,
     .pSystemParametersInfo = X11DRV_SystemParametersInfo,
+    .pwine_get_wgl_driver = X11DRV_wine_get_wgl_driver,
     .pwine_get_vulkan_driver = X11DRV_wine_get_vulkan_driver,
     .pThreadDetach = X11DRV_ThreadDetach,
 };
diff --git a/dlls/winex11.drv/xrender.c b/dlls/winex11.drv/xrender.c
index 92dc35fa9e1..5ede97fb026 100644
--- a/dlls/winex11.drv/xrender.c
+++ b/dlls/winex11.drv/xrender.c
@@ -2246,7 +2246,6 @@ static const struct gdi_dc_funcs xrender_funcs =
     NULL,                               /* pUnrealizePalette */
     NULL,                               /* pD3DKMTCheckVidPnExclusiveOwnership */
     NULL,                               /* pD3DKMTSetVidPnSourceOwner */
-    NULL,                               /* wine_get_wgl_driver */
     GDI_PRIORITY_GRAPHICS_DRV + 10      /* priority */
 };
diff --git a/include/wine/gdi_driver.h b/include/wine/gdi_driver.h
index 567a6c21608..24a4bba1c8b 100644
--- a/include/wine/gdi_driver.h
+++ b/include/wine/gdi_driver.h
@@ -159,7 +159,6 @@ struct gdi_dc_funcs
     BOOL     (CDECL *pUnrealizePalette)(HPALETTE);
     NTSTATUS (CDECL *pD3DKMTCheckVidPnExclusiveOwnership)(const D3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP *);
     NTSTATUS (CDECL *pD3DKMTSetVidPnSourceOwner)(const D3DKMT_SETVIDPNSOURCEOWNER *);
-    struct opengl_funcs * (CDECL *wine_get_wgl_driver)(PHYSDEV,UINT);
/* priority order for the driver on the stack */
     UINT       priority;
@@ -323,6 +322,8 @@ struct user_driver_funcs
     const struct vulkan_funcs * (CDECL *pwine_get_vulkan_driver)(UINT);
     /* thread management */
     void    (CDECL *pThreadDetach)(void);
+    /* opengl support */
+    struct opengl_funcs * (CDECL *pwine_get_wgl_driver)(UINT);
 };
extern void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT version );
-- 
2.35.1



    