[PATCH 5/5] ddraw: Get rid of IDirectDrawImpl.

Christian Costa titan.costa at gmail.com
Fri Mar 9 06:29:11 CST 2012


Hi Henry,

Maybe it's a bit late to ask this but what's the reasoning behind 
introducing the struct keyword ?
And why removing use of This ? It's a common practise in all wine code.

Christian

Le 08/03/2012 20:27, Henri Verbeet a écrit :
> ---
>   dlls/ddraw/ddraw.c         |  623 ++++++++++++++++++++++----------------------
>   dlls/ddraw/ddraw_private.h |   39 ++--
>   dlls/ddraw/device.c        |    2 +-
>   dlls/ddraw/light.c         |    2 +-
>   dlls/ddraw/main.c          |   22 +-
>   dlls/ddraw/material.c      |    2 +-
>   dlls/ddraw/palette.c       |    2 +-
>   dlls/ddraw/surface.c       |    2 +-
>   dlls/ddraw/vertexbuffer.c  |    2 +-
>   dlls/ddraw/viewport.c      |    2 +-
>   10 files changed, 346 insertions(+), 352 deletions(-)
>
> diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
> index 25519d2..3d156eb 100644
> --- a/dlls/ddraw/ddraw.chverbeet at codeweavers.com
> +++ b/dlls/ddraw/ddraw.c
> @@ -75,44 +75,44 @@ const struct wined3d_parent_ops ddraw_null_wined3d_parent_ops =
>       ddraw_null_wined3d_object_destroyed,
>   };
>
> -static inline IDirectDrawImpl *impl_from_IDirectDraw(IDirectDraw *iface)
> +static inline struct ddraw *impl_from_IDirectDraw(IDirectDraw *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirectDraw_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirectDraw_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirectDraw2(IDirectDraw2 *iface)
> +static inline struct ddraw *impl_from_IDirectDraw2(IDirectDraw2 *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirectDraw2_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirectDraw2_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirectDraw4(IDirectDraw4 *iface)
> +static inline struct ddraw *impl_from_IDirectDraw4(IDirectDraw4 *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirectDraw4_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirectDraw4_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirectDraw7(IDirectDraw7 *iface)
> +static inline struct ddraw *impl_from_IDirectDraw7(IDirectDraw7 *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirectDraw7_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirectDraw7_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirect3D(IDirect3D *iface)
> +static inline struct ddraw *impl_from_IDirect3D(IDirect3D *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirect3D_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirect3D_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirect3D2(IDirect3D2 *iface)
> +static inline struct ddraw *impl_from_IDirect3D2(IDirect3D2 *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirect3D2_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirect3D2_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirect3D3(IDirect3D3 *iface)
> +static inline struct ddraw *impl_from_IDirect3D3(IDirect3D3 *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirect3D3_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirect3D3_iface);
>   }
>
> -static inline IDirectDrawImpl *impl_from_IDirect3D7(IDirect3D7 *iface)
> +static inline struct ddraw *impl_from_IDirect3D7(IDirect3D7 *iface)
>   {
> -    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirect3D7_iface);
> +    return CONTAINING_RECORD(iface, struct ddraw, IDirect3D7_iface);
>   }
>
>   /*****************************************************************************
> @@ -141,7 +141,7 @@ static inline IDirectDrawImpl *impl_from_IDirect3D7(IDirect3D7 *iface)
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_QueryInterface(IDirectDraw7 *iface, REFIID refiid, void **obj)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *This = impl_from_IDirectDraw7(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(refiid), obj);
>
> @@ -248,65 +248,65 @@ static HRESULT WINAPI ddraw7_QueryInterface(IDirectDraw7 *iface, REFIID refiid,
>
>   static HRESULT WINAPI ddraw4_QueryInterface(IDirectDraw4 *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   static HRESULT WINAPI ddraw2_QueryInterface(IDirectDraw2 *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   static HRESULT WINAPI ddraw1_QueryInterface(IDirectDraw *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   static HRESULT WINAPI d3d7_QueryInterface(IDirect3D7 *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D7(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   static HRESULT WINAPI d3d3_QueryInterface(IDirect3D3 *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   static HRESULT WINAPI d3d2_QueryInterface(IDirect3D2 *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   static HRESULT WINAPI d3d1_QueryInterface(IDirect3D *iface, REFIID riid, void **object)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
>
> -    return ddraw7_QueryInterface(&This->IDirectDraw7_iface, riid, object);
> +    return ddraw7_QueryInterface(&ddraw->IDirectDraw7_iface, riid, object);
>   }
>
>   /*****************************************************************************
> @@ -318,7 +318,7 @@ static HRESULT WINAPI d3d1_QueryInterface(IDirect3D *iface, REFIID riid, void **
>    * versions have individual refcounts, but the IDirect3D interfaces do not.
>    * All interfaces are from one object, that means calling QueryInterface on an
>    * IDirectDraw7 interface for an IDirectDraw4 interface does not create a new
> - * IDirectDrawImpl object.
> + * ddraw object.
>    *
>    * That means all AddRef and Release implementations of IDirectDrawX work
>    * with their own counter, and IDirect3DX::AddRef thunk to IDirectDraw (1),
> @@ -329,7 +329,7 @@ static HRESULT WINAPI d3d1_QueryInterface(IDirect3D *iface, REFIID riid, void **
>    *****************************************************************************/
>   static ULONG WINAPI ddraw7_AddRef(IDirectDraw7 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *This = impl_from_IDirectDraw7(iface);
>       ULONG ref = InterlockedIncrement(&This->ref7);
>
>       TRACE("%p increasing refcount to %u.\n", This, ref);
> @@ -341,7 +341,7 @@ static ULONG WINAPI ddraw7_AddRef(IDirectDraw7 *iface)
>
>   static ULONG WINAPI ddraw4_AddRef(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *This = impl_from_IDirectDraw4(iface);
>       ULONG ref = InterlockedIncrement(&This->ref4);
>
>       TRACE("%p increasing refcount to %u.\n", This, ref);
> @@ -353,7 +353,7 @@ static ULONG WINAPI ddraw4_AddRef(IDirectDraw4 *iface)
>
>   static ULONG WINAPI ddraw2_AddRef(IDirectDraw2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *This = impl_from_IDirectDraw2(iface);
>       ULONG ref = InterlockedIncrement(&This->ref2);
>
>       TRACE("%p increasing refcount to %u.\n", This, ref);
> @@ -365,7 +365,7 @@ static ULONG WINAPI ddraw2_AddRef(IDirectDraw2 *iface)
>
>   static ULONG WINAPI ddraw1_AddRef(IDirectDraw *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *This = impl_from_IDirectDraw(iface);
>       ULONG ref = InterlockedIncrement(&This->ref1);
>
>       TRACE("%p increasing refcount to %u.\n", This, ref);
> @@ -377,7 +377,7 @@ static ULONG WINAPI ddraw1_AddRef(IDirectDraw *iface)
>
>   static ULONG WINAPI d3d7_AddRef(IDirect3D7 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *This = impl_from_IDirect3D7(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -386,7 +386,7 @@ static ULONG WINAPI d3d7_AddRef(IDirect3D7 *iface)
>
>   static ULONG WINAPI d3d3_AddRef(IDirect3D3 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *This = impl_from_IDirect3D3(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -395,7 +395,7 @@ static ULONG WINAPI d3d3_AddRef(IDirect3D3 *iface)
>
>   static ULONG WINAPI d3d2_AddRef(IDirect3D2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *This = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -404,14 +404,14 @@ static ULONG WINAPI d3d2_AddRef(IDirect3D2 *iface)
>
>   static ULONG WINAPI d3d1_AddRef(IDirect3D *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *This = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p.\n", iface);
>
>       return ddraw1_AddRef(&This->IDirectDraw_iface);
>   }
>
> -void ddraw_destroy_swapchain(IDirectDrawImpl *ddraw)
> +void ddraw_destroy_swapchain(struct ddraw *ddraw)
>   {
>       TRACE("Destroying the swapchain.\n");
>
> @@ -466,7 +466,7 @@ void ddraw_destroy_swapchain(IDirectDrawImpl *ddraw)
>    *  This: DirectDraw object to destroy
>    *
>    *****************************************************************************/
> -static void ddraw_destroy(IDirectDrawImpl *This)
> +static void ddraw_destroy(struct ddraw *This)
>   {
>       IDirectDraw7_SetCooperativeLevel(&This->IDirectDraw7_iface, NULL, DDSCL_NORMAL);
>       IDirectDraw7_RestoreDisplayMode(&This->IDirectDraw7_iface);
> @@ -501,7 +501,7 @@ static void ddraw_destroy(IDirectDrawImpl *This)
>    *****************************************************************************/
>   static ULONG WINAPI ddraw7_Release(IDirectDraw7 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *This = impl_from_IDirectDraw7(iface);
>       ULONG ref = InterlockedDecrement(&This->ref7);
>
>       TRACE("%p decreasing refcount to %u.\n", This, ref);
> @@ -514,7 +514,7 @@ static ULONG WINAPI ddraw7_Release(IDirectDraw7 *iface)
>
>   static ULONG WINAPI ddraw4_Release(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *This = impl_from_IDirectDraw4(iface);
>       ULONG ref = InterlockedDecrement(&This->ref4);
>
>       TRACE("%p decreasing refcount to %u.\n", This, ref);
> @@ -527,7 +527,7 @@ static ULONG WINAPI ddraw4_Release(IDirectDraw4 *iface)
>
>   static ULONG WINAPI ddraw2_Release(IDirectDraw2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *This = impl_from_IDirectDraw2(iface);
>       ULONG ref = InterlockedDecrement(&This->ref2);
>
>       TRACE("%p decreasing refcount to %u.\n", This, ref);
> @@ -540,7 +540,7 @@ static ULONG WINAPI ddraw2_Release(IDirectDraw2 *iface)
>
>   static ULONG WINAPI ddraw1_Release(IDirectDraw *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *This = impl_from_IDirectDraw(iface);
>       ULONG ref = InterlockedDecrement(&This->ref1);
>
>       TRACE("%p decreasing refcount to %u.\n", This, ref);
> @@ -553,7 +553,7 @@ static ULONG WINAPI ddraw1_Release(IDirectDraw *iface)
>
>   static ULONG WINAPI d3d7_Release(IDirect3D7 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *This = impl_from_IDirect3D7(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -562,7 +562,7 @@ static ULONG WINAPI d3d7_Release(IDirect3D7 *iface)
>
>   static ULONG WINAPI d3d3_Release(IDirect3D3 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *This = impl_from_IDirect3D3(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -571,7 +571,7 @@ static ULONG WINAPI d3d3_Release(IDirect3D3 *iface)
>
>   static ULONG WINAPI d3d2_Release(IDirect3D2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *This = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -580,7 +580,7 @@ static ULONG WINAPI d3d2_Release(IDirect3D2 *iface)
>
>   static ULONG WINAPI d3d1_Release(IDirect3D *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *This = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p.\n", iface);
>
> @@ -591,7 +591,7 @@ static ULONG WINAPI d3d1_Release(IDirect3D *iface)
>    * IDirectDraw methods
>    *****************************************************************************/
>
> -static HRESULT ddraw_set_focus_window(IDirectDrawImpl *ddraw, HWND window)
> +static HRESULT ddraw_set_focus_window(struct ddraw *ddraw, HWND window)
>   {
>       /* FIXME: This looks wrong, exclusive mode should imply a destination
>        * window. */
> @@ -609,7 +609,7 @@ static HRESULT ddraw_set_focus_window(IDirectDrawImpl *ddraw, HWND window)
>       return DD_OK;
>   }
>
> -static HRESULT ddraw_attach_d3d_device(IDirectDrawImpl *ddraw,
> +static HRESULT ddraw_attach_d3d_device(struct ddraw *ddraw,
>           struct wined3d_swapchain_desc *swapchain_desc)
>   {
>       HWND window = swapchain_desc->device_window;
> @@ -664,7 +664,7 @@ static HRESULT ddraw_attach_d3d_device(IDirectDrawImpl *ddraw,
>       return DD_OK;
>   }
>
> -static HRESULT ddraw_create_swapchain(IDirectDrawImpl *ddraw, HWND window, BOOL windowed)
> +static HRESULT ddraw_create_swapchain(struct ddraw *ddraw, HWND window, BOOL windowed)
>   {
>       struct wined3d_swapchain_desc swapchain_desc;
>       struct wined3d_display_mode mode;
> @@ -758,7 +758,7 @@ static HRESULT ddraw_create_swapchain(IDirectDrawImpl *ddraw, HWND window, BOOL
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_SetCooperativeLevel(IDirectDraw7 *iface, HWND hwnd, DWORD cooplevel)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *This = impl_from_IDirectDraw7(iface);
>       struct wined3d_stateblock *stateblock;
>       struct wined3d_surface *rt, *ds;
>       BOOL restore_state = FALSE;
> @@ -995,29 +995,29 @@ static HRESULT WINAPI ddraw7_SetCooperativeLevel(IDirectDraw7 *iface, HWND hwnd,
>
>   static HRESULT WINAPI ddraw4_SetCooperativeLevel(IDirectDraw4 *iface, HWND window, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, window %p, flags %#x.\n", iface, window, flags);
>
> -    return ddraw7_SetCooperativeLevel(&This->IDirectDraw7_iface, window, flags);
> +    return ddraw7_SetCooperativeLevel(&ddraw->IDirectDraw7_iface, window, flags);
>   }
>
>   static HRESULT WINAPI ddraw2_SetCooperativeLevel(IDirectDraw2 *iface, HWND window, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, window %p, flags %#x.\n", iface, window, flags);
>
> -    return ddraw7_SetCooperativeLevel(&This->IDirectDraw7_iface, window, flags);
> +    return ddraw7_SetCooperativeLevel(&ddraw->IDirectDraw7_iface, window, flags);
>   }
>
>   static HRESULT WINAPI ddraw1_SetCooperativeLevel(IDirectDraw *iface, HWND window, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, window %p, flags %#x.\n", iface, window, flags);
>
> -    return ddraw7_SetCooperativeLevel(&This->IDirectDraw7_iface, window, flags);
> +    return ddraw7_SetCooperativeLevel(&ddraw->IDirectDraw7_iface, window, flags);
>   }
>
>   /*****************************************************************************
> @@ -1032,7 +1032,7 @@ static HRESULT WINAPI ddraw1_SetCooperativeLevel(IDirectDraw *iface, HWND window
>    * ddraw7_SetDisplayMode.
>    *
>    *****************************************************************************/
> -static HRESULT ddraw_set_display_mode(IDirectDrawImpl *ddraw, DWORD Width, DWORD Height,
> +static HRESULT ddraw_set_display_mode(struct ddraw *ddraw, DWORD Width, DWORD Height,
>           DWORD BPP, DWORD RefreshRate, DWORD Flags)
>   {
>       struct wined3d_display_mode mode;
> @@ -1131,7 +1131,7 @@ static HRESULT ddraw_set_display_mode(IDirectDrawImpl *ddraw, DWORD Width, DWORD
>   static HRESULT WINAPI ddraw7_SetDisplayMode(IDirectDraw7 *iface, DWORD Width, DWORD Height,
>           DWORD BPP, DWORD RefreshRate, DWORD Flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>
>       TRACE("iface %p, width %u, height %u, bpp %u, refresh_rate %u, flags %#x.\n",
>               iface, Width, Height, BPP, RefreshRate, Flags);
> @@ -1143,38 +1143,38 @@ static HRESULT WINAPI ddraw7_SetDisplayMode(IDirectDraw7 *iface, DWORD Width, DW
>           RefreshRate = force_refresh_rate;
>       }
>
> -    return ddraw_set_display_mode(This, Width, Height, BPP, RefreshRate, Flags);
> +    return ddraw_set_display_mode(ddraw, Width, Height, BPP, RefreshRate, Flags);
>   }
>
>   static HRESULT WINAPI ddraw4_SetDisplayMode(IDirectDraw4 *iface, DWORD width, DWORD height,
>           DWORD bpp, DWORD refresh_rate, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, width %u, height %u, bpp %u, refresh_rate %u, flags %#x.\n",
>               iface, width, height, bpp, refresh_rate, flags);
>
> -    return ddraw7_SetDisplayMode(&This->IDirectDraw7_iface, width, height, bpp, refresh_rate, flags);
> +    return ddraw7_SetDisplayMode(&ddraw->IDirectDraw7_iface, width, height, bpp, refresh_rate, flags);
>   }
>
>   static HRESULT WINAPI ddraw2_SetDisplayMode(IDirectDraw2 *iface,
>           DWORD width, DWORD height, DWORD bpp, DWORD refresh_rate, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, width %u, height %u, bpp %u, refresh_rate %u, flags %#x.\n",
>               iface, width, height, bpp, refresh_rate, flags);
>
> -    return ddraw7_SetDisplayMode(&This->IDirectDraw7_iface, width, height, bpp, refresh_rate, flags);
> +    return ddraw7_SetDisplayMode(&ddraw->IDirectDraw7_iface, width, height, bpp, refresh_rate, flags);
>   }
>
>   static HRESULT WINAPI ddraw1_SetDisplayMode(IDirectDraw *iface, DWORD width, DWORD height, DWORD bpp)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, width %u, height %u, bpp %u.\n", iface, width, height, bpp);
>
> -    return ddraw7_SetDisplayMode(&This->IDirectDraw7_iface, width, height, bpp, 0, 0);
> +    return ddraw7_SetDisplayMode(&ddraw->IDirectDraw7_iface, width, height, bpp, 0, 0);
>   }
>
>   /*****************************************************************************
> @@ -1200,38 +1200,38 @@ static HRESULT WINAPI ddraw1_SetDisplayMode(IDirectDraw *iface, DWORD width, DWO
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_RestoreDisplayMode(IDirectDraw7 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw_set_display_mode(This, This->orig_width, This->orig_height, This->orig_bpp, 0, 0);
> +    return ddraw_set_display_mode(ddraw, ddraw->orig_width, ddraw->orig_height, ddraw->orig_bpp, 0, 0);
>   }
>
>   static HRESULT WINAPI ddraw4_RestoreDisplayMode(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_RestoreDisplayMode(&This->IDirectDraw7_iface);
> +    return ddraw7_RestoreDisplayMode(&ddraw->IDirectDraw7_iface);
>   }
>
>   static HRESULT WINAPI ddraw2_RestoreDisplayMode(IDirectDraw2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_RestoreDisplayMode(&This->IDirectDraw7_iface);
> +    return ddraw7_RestoreDisplayMode(&ddraw->IDirectDraw7_iface);
>   }
>
>   static HRESULT WINAPI ddraw1_RestoreDisplayMode(IDirectDraw *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_RestoreDisplayMode(&This->IDirectDraw7_iface);
> +    return ddraw7_RestoreDisplayMode(&ddraw->IDirectDraw7_iface);
>   }
>
>   /*****************************************************************************
> @@ -1251,7 +1251,7 @@ static HRESULT WINAPI ddraw1_RestoreDisplayMode(IDirectDraw *iface)
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_GetCaps(IDirectDraw7 *iface, DDCAPS *DriverCaps, DDCAPS *HELCaps)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       DDCAPS caps;
>       WINED3DCAPS winecaps;
>       HRESULT hr;
> @@ -1260,9 +1260,9 @@ static HRESULT WINAPI ddraw7_GetCaps(IDirectDraw7 *iface, DDCAPS *DriverCaps, DD
>       TRACE("iface %p, driver_caps %p, hel_caps %p.\n", iface, DriverCaps, HELCaps);
>
>       /* One structure must be != NULL */
> -    if( (!DriverCaps)&&  (!HELCaps) )
> +    if (!DriverCaps&&  !HELCaps)
>       {
> -        ERR("(%p) Invalid params to ddraw7_GetCaps\n", This);
> +        WARN("Invalid parameters.\n");
>           return DDERR_INVALIDPARAMS;
>       }
>
> @@ -1271,7 +1271,7 @@ static HRESULT WINAPI ddraw7_GetCaps(IDirectDraw7 *iface, DDCAPS *DriverCaps, DD
>       caps.dwSize = sizeof(caps);
>
>       wined3d_mutex_lock();
> -    hr = wined3d_device_get_device_caps(This->wined3d_device,&winecaps);
> +    hr = wined3d_device_get_device_caps(ddraw->wined3d_device,&winecaps);
>       if (FAILED(hr))
>       {
>           WARN("IWineD3DDevice::GetDeviceCaps failed\n");
> @@ -1341,29 +1341,29 @@ static HRESULT WINAPI ddraw7_GetCaps(IDirectDraw7 *iface, DDCAPS *DriverCaps, DD
>
>   static HRESULT WINAPI ddraw4_GetCaps(IDirectDraw4 *iface, DDCAPS *driver_caps, DDCAPS *hel_caps)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, driver_caps %p, hel_caps %p.\n", iface, driver_caps, hel_caps);
>
> -    return ddraw7_GetCaps(&This->IDirectDraw7_iface, driver_caps, hel_caps);
> +    return ddraw7_GetCaps(&ddraw->IDirectDraw7_iface, driver_caps, hel_caps);
>   }
>
>   static HRESULT WINAPI ddraw2_GetCaps(IDirectDraw2 *iface, DDCAPS *driver_caps, DDCAPS *hel_caps)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, driver_caps %p, hel_caps %p.\n", iface, driver_caps, hel_caps);
>
> -    return ddraw7_GetCaps(&This->IDirectDraw7_iface, driver_caps, hel_caps);
> +    return ddraw7_GetCaps(&ddraw->IDirectDraw7_iface, driver_caps, hel_caps);
>   }
>
>   static HRESULT WINAPI ddraw1_GetCaps(IDirectDraw *iface, DDCAPS *driver_caps, DDCAPS *hel_caps)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, driver_caps %p, hel_caps %p.\n", iface, driver_caps, hel_caps);
>
> -    return ddraw7_GetCaps(&This->IDirectDraw7_iface, driver_caps, hel_caps);
> +    return ddraw7_GetCaps(&ddraw->IDirectDraw7_iface, driver_caps, hel_caps);
>   }
>
>   /*****************************************************************************
> @@ -1384,29 +1384,29 @@ static HRESULT WINAPI ddraw7_Compact(IDirectDraw7 *iface)
>
>   static HRESULT WINAPI ddraw4_Compact(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_Compact(&This->IDirectDraw7_iface);
> +    return ddraw7_Compact(&ddraw->IDirectDraw7_iface);
>   }
>
>   static HRESULT WINAPI ddraw2_Compact(IDirectDraw2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_Compact(&This->IDirectDraw7_iface);
> +    return ddraw7_Compact(&ddraw->IDirectDraw7_iface);
>   }
>
>   static HRESULT WINAPI ddraw1_Compact(IDirectDraw *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_Compact(&This->IDirectDraw7_iface);
> +    return ddraw7_Compact(&ddraw->IDirectDraw7_iface);
>   }
>
>   /*****************************************************************************
> @@ -1425,7 +1425,7 @@ static HRESULT WINAPI ddraw1_Compact(IDirectDraw *iface)
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_GetDisplayMode(IDirectDraw7 *iface, DDSURFACEDESC2 *DDSD)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       struct wined3d_display_mode mode;
>       HRESULT hr;
>       DWORD Size;
> @@ -1442,10 +1442,10 @@ static HRESULT WINAPI ddraw7_GetDisplayMode(IDirectDraw7 *iface, DDSURFACEDESC2
>
>       /* The necessary members of LPDDSURFACEDESC and LPDDSURFACEDESC2 are equal,
>        * so one method can be used for all versions (Hopefully) */
> -    hr = wined3d_device_get_display_mode(This->wined3d_device, 0,&mode);
> +    hr = wined3d_device_get_display_mode(ddraw->wined3d_device, 0,&mode);
>       if (FAILED(hr))
>       {
> -        ERR(" (%p) IWineD3DDevice::GetDisplayMode returned %08x\n", This, hr);
> +        ERR("Failed to get display mode, hr %#x.\n", hr);
>           wined3d_mutex_unlock();
>           return hr;
>       }
> @@ -1476,31 +1476,31 @@ static HRESULT WINAPI ddraw7_GetDisplayMode(IDirectDraw7 *iface, DDSURFACEDESC2
>
>   static HRESULT WINAPI ddraw4_GetDisplayMode(IDirectDraw4 *iface, DDSURFACEDESC2 *surface_desc)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, surface_desc %p.\n", iface, surface_desc);
>
> -    return ddraw7_GetDisplayMode(&This->IDirectDraw7_iface, surface_desc);
> +    return ddraw7_GetDisplayMode(&ddraw->IDirectDraw7_iface, surface_desc);
>   }
>
>   static HRESULT WINAPI ddraw2_GetDisplayMode(IDirectDraw2 *iface, DDSURFACEDESC *surface_desc)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, surface_desc %p.\n", iface, surface_desc);
>
>       /* FIXME: Test sizes, properly convert surface_desc */
> -    return ddraw7_GetDisplayMode(&This->IDirectDraw7_iface, (DDSURFACEDESC2 *)surface_desc);
> +    return ddraw7_GetDisplayMode(&ddraw->IDirectDraw7_iface, (DDSURFACEDESC2 *)surface_desc);
>   }
>
>   static HRESULT WINAPI ddraw1_GetDisplayMode(IDirectDraw *iface, DDSURFACEDESC *surface_desc)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, surface_desc %p.\n", iface, surface_desc);
>
>       /* FIXME: Test sizes, properly convert surface_desc */
> -    return ddraw7_GetDisplayMode(&This->IDirectDraw7_iface, (DDSURFACEDESC2 *)surface_desc);
> +    return ddraw7_GetDisplayMode(&ddraw->IDirectDraw7_iface, (DDSURFACEDESC2 *)surface_desc);
>   }
>
>   /*****************************************************************************
> @@ -1522,7 +1522,7 @@ static HRESULT WINAPI ddraw1_GetDisplayMode(IDirectDraw *iface, DDSURFACEDESC *s
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_GetFourCCCodes(IDirectDraw7 *iface, DWORD *NumCodes, DWORD *Codes)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       static const enum wined3d_format_id formats[] =
>       {
>           WINED3DFMT_YUY2, WINED3DFMT_UYVY, WINED3DFMT_YV12,
> @@ -1535,13 +1535,13 @@ static HRESULT WINAPI ddraw7_GetFourCCCodes(IDirectDraw7 *iface, DWORD *NumCodes
>
>       TRACE("iface %p, codes_count %p, codes %p.\n", iface, NumCodes, Codes);
>
> -    wined3d_device_get_display_mode(This->wined3d_device, 0,&mode);
> +    wined3d_device_get_display_mode(ddraw->wined3d_device, 0,&mode);
>
>       outsize = NumCodes&&  Codes ? *NumCodes : 0;
>
>       for (i = 0; i<  (sizeof(formats) / sizeof(formats[0])); ++i)
>       {
> -        hr = wined3d_check_device_format(This->wined3d, WINED3DADAPTER_DEFAULT, WINED3D_DEVICE_TYPE_HAL,
> +        hr = wined3d_check_device_format(ddraw->wined3d, WINED3DADAPTER_DEFAULT, WINED3D_DEVICE_TYPE_HAL,
>                   mode.format_id, 0, WINED3D_RTYPE_SURFACE, formats[i], DefaultSurfaceType);
>           if (SUCCEEDED(hr))
>           {
> @@ -1560,29 +1560,29 @@ static HRESULT WINAPI ddraw7_GetFourCCCodes(IDirectDraw7 *iface, DWORD *NumCodes
>
>   static HRESULT WINAPI ddraw4_GetFourCCCodes(IDirectDraw4 *iface, DWORD *codes_count, DWORD *codes)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, codes_count %p, codes %p.\n", iface, codes_count, codes);
>
> -    return ddraw7_GetFourCCCodes(&This->IDirectDraw7_iface, codes_count, codes);
> +    return ddraw7_GetFourCCCodes(&ddraw->IDirectDraw7_iface, codes_count, codes);
>   }
>
>   static HRESULT WINAPI ddraw2_GetFourCCCodes(IDirectDraw2 *iface, DWORD *codes_count, DWORD *codes)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, codes_count %p, codes %p.\n", iface, codes_count, codes);
>
> -    return ddraw7_GetFourCCCodes(&This->IDirectDraw7_iface, codes_count, codes);
> +    return ddraw7_GetFourCCCodes(&ddraw->IDirectDraw7_iface, codes_count, codes);
>   }
>
>   static HRESULT WINAPI ddraw1_GetFourCCCodes(IDirectDraw *iface, DWORD *codes_count, DWORD *codes)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, codes_count %p, codes %p.\n", iface, codes_count, codes);
>
> -    return ddraw7_GetFourCCCodes(&This->IDirectDraw7_iface, codes_count, codes);
> +    return ddraw7_GetFourCCCodes(&ddraw->IDirectDraw7_iface, codes_count, codes);
>   }
>
>   /*****************************************************************************
> @@ -1612,29 +1612,29 @@ static HRESULT WINAPI ddraw7_GetMonitorFrequency(IDirectDraw7 *iface, DWORD *Fre
>
>   static HRESULT WINAPI ddraw4_GetMonitorFrequency(IDirectDraw4 *iface, DWORD *frequency)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, frequency %p.\n", iface, frequency);
>
> -    return ddraw7_GetMonitorFrequency(&This->IDirectDraw7_iface, frequency);
> +    return ddraw7_GetMonitorFrequency(&ddraw->IDirectDraw7_iface, frequency);
>   }
>
>   static HRESULT WINAPI ddraw2_GetMonitorFrequency(IDirectDraw2 *iface, DWORD *frequency)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, frequency %p.\n", iface, frequency);
>
> -    return ddraw7_GetMonitorFrequency(&This->IDirectDraw7_iface, frequency);
> +    return ddraw7_GetMonitorFrequency(&ddraw->IDirectDraw7_iface, frequency);
>   }
>
>   static HRESULT WINAPI ddraw1_GetMonitorFrequency(IDirectDraw *iface, DWORD *frequency)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, frequency %p.\n", iface, frequency);
>
> -    return ddraw7_GetMonitorFrequency(&This->IDirectDraw7_iface, frequency);
> +    return ddraw7_GetMonitorFrequency(&ddraw->IDirectDraw7_iface, frequency);
>   }
>
>   /*****************************************************************************
> @@ -1668,29 +1668,29 @@ static HRESULT WINAPI ddraw7_GetVerticalBlankStatus(IDirectDraw7 *iface, BOOL *s
>
>   static HRESULT WINAPI ddraw4_GetVerticalBlankStatus(IDirectDraw4 *iface, BOOL *status)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, status %p.\n", iface, status);
>
> -    return ddraw7_GetVerticalBlankStatus(&This->IDirectDraw7_iface, status);
> +    return ddraw7_GetVerticalBlankStatus(&ddraw->IDirectDraw7_iface, status);
>   }
>
>   static HRESULT WINAPI ddraw2_GetVerticalBlankStatus(IDirectDraw2 *iface, BOOL *status)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, status %p.\n", iface, status);
>
> -    return ddraw7_GetVerticalBlankStatus(&This->IDirectDraw7_iface, status);
> +    return ddraw7_GetVerticalBlankStatus(&ddraw->IDirectDraw7_iface, status);
>   }
>
>   static HRESULT WINAPI ddraw1_GetVerticalBlankStatus(IDirectDraw *iface, BOOL *status)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, status %p.\n", iface, status);
>
> -    return ddraw7_GetVerticalBlankStatus(&This->IDirectDraw7_iface, status);
> +    return ddraw7_GetVerticalBlankStatus(&ddraw->IDirectDraw7_iface, status);
>   }
>
>   /*****************************************************************************
> @@ -1711,14 +1711,14 @@ static HRESULT WINAPI ddraw1_GetVerticalBlankStatus(IDirectDraw *iface, BOOL *st
>   static HRESULT WINAPI ddraw7_GetAvailableVidMem(IDirectDraw7 *iface, DDSCAPS2 *Caps, DWORD *total,
>           DWORD *free)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       HRESULT hr = DD_OK;
>
>       TRACE("iface %p, caps %p, total %p, free %p.\n", iface, Caps, total, free);
>
> -    if(TRACE_ON(ddraw))
> +    if (TRACE_ON(ddraw))
>       {
> -        TRACE("(%p) Asked for memory with description: ", This);
> +        TRACE("Asked for memory with description: ");
>           DDRAW_dump_DDSCAPS2(Caps);
>       }
>       wined3d_mutex_lock();
> @@ -1735,12 +1735,12 @@ static HRESULT WINAPI ddraw7_GetAvailableVidMem(IDirectDraw7 *iface, DDSCAPS2 *C
>       }
>
>       if (free)
> -        *free = wined3d_device_get_available_texture_mem(This->wined3d_device);
> +        *free = wined3d_device_get_available_texture_mem(ddraw->wined3d_device);
>       if (total)
>       {
>           struct wined3d_adapter_identifier desc = {0};
>
> -        hr = wined3d_get_adapter_identifier(This->wined3d, WINED3DADAPTER_DEFAULT, 0,&desc);
> +        hr = wined3d_get_adapter_identifier(ddraw->wined3d, WINED3DADAPTER_DEFAULT, 0,&desc);
>           *total = desc.video_memory;
>       }
>
> @@ -1752,23 +1752,23 @@ static HRESULT WINAPI ddraw7_GetAvailableVidMem(IDirectDraw7 *iface, DDSCAPS2 *C
>   static HRESULT WINAPI ddraw4_GetAvailableVidMem(IDirectDraw4 *iface,
>           DDSCAPS2 *caps, DWORD *total, DWORD *free)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, caps %p, total %p, free %p.\n", iface, caps, total, free);
>
> -    return ddraw7_GetAvailableVidMem(&This->IDirectDraw7_iface, caps, total, free);
> +    return ddraw7_GetAvailableVidMem(&ddraw->IDirectDraw7_iface, caps, total, free);
>   }
>
>   static HRESULT WINAPI ddraw2_GetAvailableVidMem(IDirectDraw2 *iface,
>           DDSCAPS *caps, DWORD *total, DWORD *free)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       DDSCAPS2 caps2;
>
>       TRACE("iface %p, caps %p, total %p, free %p.\n", iface, caps, total, free);
>
>       DDRAW_Convert_DDSCAPS_1_To_2(caps,&caps2);
> -    return ddraw7_GetAvailableVidMem(&This->IDirectDraw7_iface,&caps2, total, free);
> +    return ddraw7_GetAvailableVidMem(&ddraw->IDirectDraw7_iface,&caps2, total, free);
>   }
>
>   /*****************************************************************************
> @@ -1787,11 +1787,11 @@ static HRESULT WINAPI ddraw2_GetAvailableVidMem(IDirectDraw2 *iface,
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_Initialize(IDirectDraw7 *iface, GUID *guid)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>
>       TRACE("iface %p, guid %s.\n", iface, debugstr_guid(guid));
>
> -    if (This->initialized)
> +    if (ddraw->initialized)
>           return DDERR_ALREADYINITIALIZED;
>
>       /* FIXME: To properly take the GUID into account we should call
> @@ -1799,35 +1799,35 @@ static HRESULT WINAPI ddraw7_Initialize(IDirectDraw7 *iface, GUID *guid)
>       if (guid)
>           FIXME("Ignoring guid %s.\n", debugstr_guid(guid));
>
> -    This->initialized = TRUE;
> +    ddraw->initialized = TRUE;
>       return DD_OK;
>   }
>
>   static HRESULT WINAPI ddraw4_Initialize(IDirectDraw4 *iface, GUID *guid)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, guid %s.\n", iface, debugstr_guid(guid));
>
> -    return ddraw7_Initialize(&This->IDirectDraw7_iface, guid);
> +    return ddraw7_Initialize(&ddraw->IDirectDraw7_iface, guid);
>   }
>
>   static HRESULT WINAPI ddraw2_Initialize(IDirectDraw2 *iface, GUID *guid)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, guid %s.\n", iface, debugstr_guid(guid));
>
> -    return ddraw7_Initialize(&This->IDirectDraw7_iface, guid);
> +    return ddraw7_Initialize(&ddraw->IDirectDraw7_iface, guid);
>   }
>
>   static HRESULT WINAPI ddraw1_Initialize(IDirectDraw *iface, GUID *guid)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, guid %s.\n", iface, debugstr_guid(guid));
>
> -    return ddraw7_Initialize(&This->IDirectDraw7_iface, guid);
> +    return ddraw7_Initialize(&ddraw->IDirectDraw7_iface, guid);
>   }
>
>   static HRESULT WINAPI d3d1_Initialize(IDirect3D *iface, REFIID riid)
> @@ -1859,29 +1859,29 @@ static HRESULT WINAPI ddraw7_FlipToGDISurface(IDirectDraw7 *iface)
>
>   static HRESULT WINAPI ddraw4_FlipToGDISurface(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_FlipToGDISurface(&This->IDirectDraw7_iface);
> +    return ddraw7_FlipToGDISurface(&ddraw->IDirectDraw7_iface);
>   }
>
>   static HRESULT WINAPI ddraw2_FlipToGDISurface(IDirectDraw2 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_FlipToGDISurface(&This->IDirectDraw7_iface);
> +    return ddraw7_FlipToGDISurface(&ddraw->IDirectDraw7_iface);
>   }
>
>   static HRESULT WINAPI ddraw1_FlipToGDISurface(IDirectDraw *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_FlipToGDISurface(&This->IDirectDraw7_iface);
> +    return ddraw7_FlipToGDISurface(&ddraw->IDirectDraw7_iface);
>   }
>
>   /*****************************************************************************
> @@ -1923,29 +1923,29 @@ static HRESULT WINAPI ddraw7_WaitForVerticalBlank(IDirectDraw7 *iface, DWORD Fla
>
>   static HRESULT WINAPI ddraw4_WaitForVerticalBlank(IDirectDraw4 *iface, DWORD flags, HANDLE event)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, flags %#x, event %p.\n", iface, flags, event);
>
> -    return ddraw7_WaitForVerticalBlank(&This->IDirectDraw7_iface, flags, event);
> +    return ddraw7_WaitForVerticalBlank(&ddraw->IDirectDraw7_iface, flags, event);
>   }
>
>   static HRESULT WINAPI ddraw2_WaitForVerticalBlank(IDirectDraw2 *iface, DWORD flags, HANDLE event)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, flags %#x, event %p.\n", iface, flags, event);
>
> -    return ddraw7_WaitForVerticalBlank(&This->IDirectDraw7_iface, flags, event);
> +    return ddraw7_WaitForVerticalBlank(&ddraw->IDirectDraw7_iface, flags, event);
>   }
>
>   static HRESULT WINAPI ddraw1_WaitForVerticalBlank(IDirectDraw *iface, DWORD flags, HANDLE event)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, flags %#x, event %p.\n", iface, flags, event);
>
> -    return ddraw7_WaitForVerticalBlank(&This->IDirectDraw7_iface, flags, event);
> +    return ddraw7_WaitForVerticalBlank(&ddraw->IDirectDraw7_iface, flags, event);
>   }
>
>   /*****************************************************************************
> @@ -1962,7 +1962,7 @@ static HRESULT WINAPI ddraw1_WaitForVerticalBlank(IDirectDraw *iface, DWORD flag
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_GetScanLine(IDirectDraw7 *iface, DWORD *Scanline)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       struct wined3d_display_mode mode;
>       static DWORD cur_scanline;
>       static BOOL hide = FALSE;
> @@ -1977,7 +1977,7 @@ static HRESULT WINAPI ddraw7_GetScanLine(IDirectDraw7 *iface, DWORD *Scanline)
>       }
>
>       wined3d_mutex_lock();
> -    wined3d_device_get_display_mode(This->wined3d_device, 0,&mode);
> +    wined3d_device_get_display_mode(ddraw->wined3d_device, 0,&mode);
>       wined3d_mutex_unlock();
>
>       /* Fake the line sweeping of the monitor */
> @@ -1992,29 +1992,29 @@ static HRESULT WINAPI ddraw7_GetScanLine(IDirectDraw7 *iface, DWORD *Scanline)
>
>   static HRESULT WINAPI ddraw4_GetScanLine(IDirectDraw4 *iface, DWORD *line)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, line %p.\n", iface, line);
>
> -    return ddraw7_GetScanLine(&This->IDirectDraw7_iface, line);
> +    return ddraw7_GetScanLine(&ddraw->IDirectDraw7_iface, line);
>   }
>
>   static HRESULT WINAPI ddraw2_GetScanLine(IDirectDraw2 *iface, DWORD *line)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, line %p.\n", iface, line);
>
> -    return ddraw7_GetScanLine(&This->IDirectDraw7_iface, line);
> +    return ddraw7_GetScanLine(&ddraw->IDirectDraw7_iface, line);
>   }
>
>   static HRESULT WINAPI ddraw1_GetScanLine(IDirectDraw *iface, DWORD *line)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, line %p.\n", iface, line);
>
> -    return ddraw7_GetScanLine(&This->IDirectDraw7_iface, line);
> +    return ddraw7_GetScanLine(&ddraw->IDirectDraw7_iface, line);
>   }
>
>   /*****************************************************************************
> @@ -2038,11 +2038,11 @@ static HRESULT WINAPI ddraw7_TestCooperativeLevel(IDirectDraw7 *iface)
>
>   static HRESULT WINAPI ddraw4_TestCooperativeLevel(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_TestCooperativeLevel(&This->IDirectDraw7_iface);
> +    return ddraw7_TestCooperativeLevel(&ddraw->IDirectDraw7_iface);
>   }
>
>   /*****************************************************************************
> @@ -2061,13 +2061,13 @@ static HRESULT WINAPI ddraw4_TestCooperativeLevel(IDirectDraw4 *iface)
>    *****************************************************************************/
>   static HRESULT WINAPI ddraw7_GetGDISurface(IDirectDraw7 *iface, IDirectDrawSurface7 **GDISurface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>
>       TRACE("iface %p, surface %p.\n", iface, GDISurface);
>
>       wined3d_mutex_lock();
>
> -    if (!(*GDISurface =&This->primary->IDirectDrawSurface7_iface))
> +    if (!(*GDISurface =&ddraw->primary->IDirectDrawSurface7_iface))
>       {
>           WARN("Primary not created yet.\n");
>           wined3d_mutex_unlock();
> @@ -2082,14 +2082,14 @@ static HRESULT WINAPI ddraw7_GetGDISurface(IDirectDraw7 *iface, IDirectDrawSurfa
>
>   static HRESULT WINAPI ddraw4_GetGDISurface(IDirectDraw4 *iface, IDirectDrawSurface4 **surface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       IDirectDrawSurface7 *surface7;
>       IDirectDrawSurfaceImpl *surface_impl;
>       HRESULT hr;
>
>       TRACE("iface %p, surface %p.\n", iface, surface);
>
> -    hr = ddraw7_GetGDISurface(&This->IDirectDraw7_iface,&surface7);
> +    hr = ddraw7_GetGDISurface(&ddraw->IDirectDraw7_iface,&surface7);
>       if (FAILED(hr))
>       {
>           *surface = NULL;
> @@ -2105,14 +2105,14 @@ static HRESULT WINAPI ddraw4_GetGDISurface(IDirectDraw4 *iface, IDirectDrawSurfa
>
>   static HRESULT WINAPI ddraw2_GetGDISurface(IDirectDraw2 *iface, IDirectDrawSurface **surface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       IDirectDrawSurface7 *surface7;
>       IDirectDrawSurfaceImpl *surface_impl;
>       HRESULT hr;
>
>       TRACE("iface %p, surface %p.\n", iface, surface);
>
> -    hr = ddraw7_GetGDISurface(&This->IDirectDraw7_iface,&surface7);
> +    hr = ddraw7_GetGDISurface(&ddraw->IDirectDraw7_iface,&surface7);
>       if (FAILED(hr))
>       {
>           *surface = NULL;
> @@ -2128,14 +2128,14 @@ static HRESULT WINAPI ddraw2_GetGDISurface(IDirectDraw2 *iface, IDirectDrawSurfa
>
>   static HRESULT WINAPI ddraw1_GetGDISurface(IDirectDraw *iface, IDirectDrawSurface **surface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>       IDirectDrawSurface7 *surface7;
>       IDirectDrawSurfaceImpl *surface_impl;
>       HRESULT hr;
>
>       TRACE("iface %p, surface %p.\n", iface, surface);
>
> -    hr = ddraw7_GetGDISurface(&This->IDirectDraw7_iface,&surface7);
> +    hr = ddraw7_GetGDISurface(&ddraw->IDirectDraw7_iface,&surface7);
>       if (FAILED(hr))
>       {
>           *surface = NULL;
> @@ -2185,7 +2185,7 @@ static HRESULT CALLBACK EnumDisplayModesCallbackThunk(DDSURFACEDESC2 *surface_de
>   static HRESULT WINAPI ddraw7_EnumDisplayModes(IDirectDraw7 *iface, DWORD Flags,
>           DDSURFACEDESC2 *DDSD, void *Context, LPDDENUMMODESCALLBACK2 cb)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       struct wined3d_display_mode *enum_modes = NULL;
>       struct wined3d_display_mode mode;
>       unsigned int modenum, fmt;
> @@ -2223,7 +2223,7 @@ static HRESULT WINAPI ddraw7_EnumDisplayModes(IDirectDraw7 *iface, DWORD Flags,
>       for(fmt = 0; fmt<  (sizeof(checkFormatList) / sizeof(checkFormatList[0])); fmt++)
>       {
>           modenum = 0;
> -        while (wined3d_enum_adapter_modes(This->wined3d, WINED3DADAPTER_DEFAULT,
> +        while (wined3d_enum_adapter_modes(ddraw->wined3d, WINED3DADAPTER_DEFAULT,
>                   checkFormatList[fmt], modenum++,&mode) == WINED3D_OK)
>           {
>               PixelFormat_WineD3DtoDD(&pixelformat, mode.format_id);
> @@ -2325,18 +2325,18 @@ static HRESULT WINAPI ddraw7_EnumDisplayModes(IDirectDraw7 *iface, DWORD Flags,
>   static HRESULT WINAPI ddraw4_EnumDisplayModes(IDirectDraw4 *iface, DWORD flags,
>           DDSURFACEDESC2 *surface_desc, void *context, LPDDENUMMODESCALLBACK2 callback)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, flags %#x, surface_desc %p, context %p, callback %p.\n",
>               iface, flags, surface_desc, context, callback);
>
> -    return ddraw7_EnumDisplayModes(&This->IDirectDraw7_iface, flags, surface_desc, context, callback);
> +    return ddraw7_EnumDisplayModes(&ddraw->IDirectDraw7_iface, flags, surface_desc, context, callback);
>   }
>
>   static HRESULT WINAPI ddraw2_EnumDisplayModes(IDirectDraw2 *iface, DWORD flags,
>           DDSURFACEDESC *surface_desc, void *context, LPDDENUMMODESCALLBACK callback)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       struct displaymodescallback_context cbcontext;
>       DDSURFACEDESC2 surface_desc2;
>
> @@ -2347,14 +2347,14 @@ static HRESULT WINAPI ddraw2_EnumDisplayModes(IDirectDraw2 *iface, DWORD flags,
>       cbcontext.context = context;
>
>       if (surface_desc) DDSD_to_DDSD2(surface_desc,&surface_desc2);
> -    return ddraw7_EnumDisplayModes(&This->IDirectDraw7_iface, flags,
> +    return ddraw7_EnumDisplayModes(&ddraw->IDirectDraw7_iface, flags,
>               surface_desc ?&surface_desc2 : NULL,&cbcontext, EnumDisplayModesCallbackThunk);
>   }
>
>   static HRESULT WINAPI ddraw1_EnumDisplayModes(IDirectDraw *iface, DWORD flags,
>           DDSURFACEDESC *surface_desc, void *context, LPDDENUMMODESCALLBACK callback)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>       struct displaymodescallback_context cbcontext;
>       DDSURFACEDESC2 surface_desc2;
>
> @@ -2365,7 +2365,7 @@ static HRESULT WINAPI ddraw1_EnumDisplayModes(IDirectDraw *iface, DWORD flags,
>       cbcontext.context = context;
>
>       if (surface_desc) DDSD_to_DDSD2(surface_desc,&surface_desc2);
> -    return ddraw7_EnumDisplayModes(&This->IDirectDraw7_iface, flags,
> +    return ddraw7_EnumDisplayModes(&ddraw->IDirectDraw7_iface, flags,
>               surface_desc ?&surface_desc2 : NULL,&cbcontext, EnumDisplayModesCallbackThunk);
>   }
>
> @@ -2431,13 +2431,13 @@ static HRESULT WINAPI ddraw7_GetDeviceIdentifier(IDirectDraw7 *iface,
>   static HRESULT WINAPI ddraw4_GetDeviceIdentifier(IDirectDraw4 *iface,
>           DDDEVICEIDENTIFIER *identifier, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       DDDEVICEIDENTIFIER2 identifier2;
>       HRESULT hr;
>
>       TRACE("iface %p, identifier %p, flags %#x.\n", iface, identifier, flags);
>
> -    hr = ddraw7_GetDeviceIdentifier(&This->IDirectDraw7_iface,&identifier2, flags);
> +    hr = ddraw7_GetDeviceIdentifier(&ddraw->IDirectDraw7_iface,&identifier2, flags);
>       DDRAW_Convert_DDDEVICEIDENTIFIER_2_To_1(&identifier2, identifier);
>
>       return hr;
> @@ -2460,7 +2460,7 @@ static HRESULT WINAPI ddraw4_GetDeviceIdentifier(IDirectDraw4 *iface,
>   static HRESULT WINAPI ddraw7_GetSurfaceFromDC(IDirectDraw7 *iface, HDC hdc,
>           IDirectDrawSurface7 **Surface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       struct wined3d_surface *wined3d_surface;
>       HRESULT hr;
>
> @@ -2468,7 +2468,7 @@ static HRESULT WINAPI ddraw7_GetSurfaceFromDC(IDirectDraw7 *iface, HDC hdc,
>
>       if (!Surface) return E_INVALIDARG;
>
> -    hr = wined3d_device_get_surface_from_dc(This->wined3d_device, hdc,&wined3d_surface);
> +    hr = wined3d_device_get_surface_from_dc(ddraw->wined3d_device, hdc,&wined3d_surface);
>       if (FAILED(hr))
>       {
>           TRACE("No surface found for dc %p.\n", hdc);
> @@ -2485,7 +2485,7 @@ static HRESULT WINAPI ddraw7_GetSurfaceFromDC(IDirectDraw7 *iface, HDC hdc,
>   static HRESULT WINAPI ddraw4_GetSurfaceFromDC(IDirectDraw4 *iface, HDC dc,
>           IDirectDrawSurface4 **surface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       IDirectDrawSurface7 *surface7;
>       IDirectDrawSurfaceImpl *surface_impl;
>       HRESULT hr;
> @@ -2494,7 +2494,7 @@ static HRESULT WINAPI ddraw4_GetSurfaceFromDC(IDirectDraw4 *iface, HDC dc,
>
>       if (!surface) return E_INVALIDARG;
>
> -    hr = ddraw7_GetSurfaceFromDC(&This->IDirectDraw7_iface, dc,&surface7);
> +    hr = ddraw7_GetSurfaceFromDC(&ddraw->IDirectDraw7_iface, dc,&surface7);
>       if (FAILED(hr))
>       {
>           *surface = NULL;
> @@ -2534,11 +2534,11 @@ static HRESULT WINAPI ddraw7_RestoreAllSurfaces(IDirectDraw7 *iface)
>
>   static HRESULT WINAPI ddraw4_RestoreAllSurfaces(IDirectDraw4 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return ddraw7_RestoreAllSurfaces(&This->IDirectDraw7_iface);
> +    return ddraw7_RestoreAllSurfaces(&ddraw->IDirectDraw7_iface);
>   }
>
>   /*****************************************************************************
> @@ -2596,17 +2596,17 @@ static HRESULT WINAPI ddraw7_StartModeTest(IDirectDraw7 *iface, SIZE *Modes, DWO
>    *  DD_OK on success
>    *
>    *****************************************************************************/
> -static HRESULT ddraw_create_surface(IDirectDrawImpl *This, DDSURFACEDESC2 *pDDSD,
> +static HRESULT ddraw_create_surface(struct ddraw *ddraw, DDSURFACEDESC2 *pDDSD,
>           IDirectDrawSurfaceImpl **ppSurf, UINT level, UINT version)
>   {
>       HRESULT hr;
>
>       TRACE("ddraw %p, surface_desc %p, surface %p, level %u.\n",
> -            This, pDDSD, ppSurf, level);
> +            ddraw, pDDSD, ppSurf, level);
>
>       if (TRACE_ON(ddraw))
>       {
> -        TRACE(" (%p) Requesting surface desc :\n", This);
> +        TRACE("Requesting surface desc:\n");
>           DDRAW_dump_surface_desc(pDDSD);
>       }
>
> @@ -2620,11 +2620,11 @@ static HRESULT ddraw_create_surface(IDirectDrawImpl *This, DDSURFACEDESC2 *pDDSD
>       *ppSurf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectDrawSurfaceImpl));
>       if(!*ppSurf)
>       {
> -        ERR("(%p) Error allocating memory for a surface\n", This);
> +        ERR("Failed to allocate surface memory.\n");
>           return DDERR_OUTOFVIDEOMEMORY;
>       }
>
> -    hr = ddraw_surface_init(*ppSurf, This, pDDSD, level, version);
> +    hr = ddraw_surface_init(*ppSurf, ddraw, pDDSD, level, version);
>       if (FAILED(hr))
>       {
>           WARN("Failed to initialize surface, hr %#x.\n", hr);
> @@ -2633,7 +2633,7 @@ static HRESULT ddraw_create_surface(IDirectDrawImpl *This, DDSURFACEDESC2 *pDDSD
>       }
>
>       /* Increase the surface counter, and attach the surface */
> -    list_add_head(&This->surface_list,&(*ppSurf)->surface_list_entry);
> +    list_add_head(&ddraw->surface_list,&(*ppSurf)->surface_list_entry);
>
>       TRACE("Created surface %p.\n", *ppSurf);
>
> @@ -2653,12 +2653,8 @@ static HRESULT ddraw_create_surface(IDirectDrawImpl *This, DDSURFACEDESC2 *pDDSD
>    *                creates an additional surface without the mipmapping flags
>    *
>    *****************************************************************************/
> -static HRESULT
> -CreateAdditionalSurfaces(IDirectDrawImpl *This,
> -                         IDirectDrawSurfaceImpl *root,
> -                         UINT count,
> -                         DDSURFACEDESC2 DDSD,
> -                         BOOL CubeFaceRoot, UINT version)
> +static HRESULT CreateAdditionalSurfaces(struct ddraw *ddraw, IDirectDrawSurfaceImpl *root,
> +        UINT count, DDSURFACEDESC2 DDSD, BOOL CubeFaceRoot, UINT version)
>   {
>       UINT i, j, level = 0;
>       HRESULT hr;
> @@ -2685,7 +2681,7 @@ CreateAdditionalSurfaces(IDirectDrawImpl *This,
>           }
>           CubeFaceRoot = FALSE;
>
> -        hr = ddraw_create_surface(This,&DDSD,&object2, level, version);
> +        hr = ddraw_create_surface(ddraw,&DDSD,&object2, level, version);
>           if(hr != DD_OK)
>           {
>               return hr;
> @@ -2791,7 +2787,7 @@ static HRESULT CDECL ddraw_reset_enum_callback(struct wined3d_resource *resource
>    *  DDERR_* if an error occurs
>    *
>    *****************************************************************************/
> -static HRESULT CreateSurface(IDirectDrawImpl *ddraw, DDSURFACEDESC2 *DDSD,
> +static HRESULT CreateSurface(struct ddraw *ddraw, DDSURFACEDESC2 *DDSD,
>           IDirectDrawSurfaceImpl **Surf, IUnknown *UnkOuter, UINT version)
>   {
>       IDirectDrawSurfaceImpl *object = NULL;
> @@ -3109,7 +3105,7 @@ static HRESULT CreateSurface(IDirectDrawImpl *ddraw, DDSURFACEDESC2 *DDSD,
>   static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface, DDSURFACEDESC2 *surface_desc,
>           IDirectDrawSurface7 **surface, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       IDirectDrawSurfaceImpl *impl;
>       HRESULT hr;
>
> @@ -3118,7 +3114,7 @@ static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface, DDSURFACEDESC2 *
>
>       wined3d_mutex_lock();
>
> -    if (!(This->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
> +    if (!(ddraw->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
>       {
>           WARN("Cooperative level not set.\n");
>           wined3d_mutex_unlock();
> @@ -3145,7 +3141,7 @@ static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface, DDSURFACEDESC2 *
>           return DDERR_INVALIDCAPS;
>       }
>
> -    hr = CreateSurface(This, surface_desc,&impl, outer_unknown, 7);
> +    hr = CreateSurface(ddraw, surface_desc,&impl, outer_unknown, 7);
>       wined3d_mutex_unlock();
>       if (FAILED(hr))
>       {
> @@ -3163,7 +3159,7 @@ static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface, DDSURFACEDESC2 *
>   static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
>           DDSURFACEDESC2 *surface_desc, IDirectDrawSurface4 **surface, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       IDirectDrawSurfaceImpl *impl;
>       HRESULT hr;
>
> @@ -3172,7 +3168,7 @@ static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
>
>       wined3d_mutex_lock();
>
> -    if (!(This->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
> +    if (!(ddraw->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
>       {
>           WARN("Cooperative level not set.\n");
>           wined3d_mutex_unlock();
> @@ -3199,7 +3195,7 @@ static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
>           return DDERR_INVALIDCAPS;
>       }
>
> -    hr = CreateSurface(This, surface_desc,&impl, outer_unknown, 4);
> +    hr = CreateSurface(ddraw, surface_desc,&impl, outer_unknown, 4);
>       wined3d_mutex_unlock();
>       if (FAILED(hr))
>       {
> @@ -3217,7 +3213,7 @@ static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
>   static HRESULT WINAPI ddraw2_CreateSurface(IDirectDraw2 *iface,
>           DDSURFACEDESC *surface_desc, IDirectDrawSurface **surface, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       IDirectDrawSurfaceImpl *impl;
>       HRESULT hr;
>       DDSURFACEDESC2 surface_desc2;
> @@ -3227,7 +3223,7 @@ static HRESULT WINAPI ddraw2_CreateSurface(IDirectDraw2 *iface,
>
>       wined3d_mutex_lock();
>
> -    if (!(This->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
> +    if (!(ddraw->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
>       {
>           WARN("Cooperative level not set.\n");
>           wined3d_mutex_unlock();
> @@ -3255,7 +3251,7 @@ static HRESULT WINAPI ddraw2_CreateSurface(IDirectDraw2 *iface,
>           return DDERR_INVALIDCAPS;
>       }
>
> -    hr = CreateSurface(This,&surface_desc2,&impl, outer_unknown, 2);
> +    hr = CreateSurface(ddraw,&surface_desc2,&impl, outer_unknown, 2);
>       wined3d_mutex_unlock();
>       if (FAILED(hr))
>       {
> @@ -3272,7 +3268,7 @@ static HRESULT WINAPI ddraw2_CreateSurface(IDirectDraw2 *iface,
>   static HRESULT WINAPI ddraw1_CreateSurface(IDirectDraw *iface,
>           DDSURFACEDESC *surface_desc, IDirectDrawSurface **surface, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>       IDirectDrawSurfaceImpl *impl;
>       HRESULT hr;
>       DDSURFACEDESC2 surface_desc2;
> @@ -3282,7 +3278,7 @@ static HRESULT WINAPI ddraw1_CreateSurface(IDirectDraw *iface,
>
>       wined3d_mutex_lock();
>
> -    if (!(This->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
> +    if (!(ddraw->cooperative_level&  (DDSCL_NORMAL | DDSCL_EXCLUSIVE)))
>       {
>           WARN("Cooperative level not set.\n");
>           wined3d_mutex_unlock();
> @@ -3300,7 +3296,7 @@ static HRESULT WINAPI ddraw1_CreateSurface(IDirectDraw *iface,
>        * primaries anyway. */
>       surface_desc->ddsCaps.dwCaps&= ~DDSCAPS_FRONTBUFFER;
>       DDSD_to_DDSD2(surface_desc,&surface_desc2);
> -    hr = CreateSurface(This,&surface_desc2,&impl, outer_unknown, 1);
> +    hr = CreateSurface(ddraw,&surface_desc2,&impl, outer_unknown, 1);
>       wined3d_mutex_unlock();
>       if (FAILED(hr))
>       {
> @@ -3486,13 +3482,7 @@ static HRESULT CALLBACK EnumSurfacesCallbackThunk(IDirectDrawSurface7 *surface,
>   static HRESULT WINAPI ddraw7_EnumSurfaces(IDirectDraw7 *iface, DWORD Flags,
>           DDSURFACEDESC2 *DDSD, void *Context, LPDDENUMSURFACESCALLBACK7 Callback)
>   {
> -    /* The surface enumeration is handled by WineDDraw,
> -     * because it keeps track of all surfaces attached to
> -     * it. The filtering is done by our callback function,
> -     * because WineDDraw doesn't handle ddraw-like surface
> -     * caps structures
> -     */
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       IDirectDrawSurfaceImpl *surf;
>       BOOL all, nomatch;
>       DDSURFACEDESC2 desc;
> @@ -3510,7 +3500,7 @@ static HRESULT WINAPI ddraw7_EnumSurfaces(IDirectDraw7 *iface, DWORD Flags,
>       wined3d_mutex_lock();
>
>       /* Use the _SAFE enumeration, the app may destroy enumerated surfaces */
> -    LIST_FOR_EACH_SAFE(entry, entry2,&This->surface_list)
> +    LIST_FOR_EACH_SAFE(entry, entry2,&ddraw->surface_list)
>       {
>           surf = LIST_ENTRY(entry, IDirectDrawSurfaceImpl, surface_list_entry);
>
> @@ -3541,7 +3531,7 @@ static HRESULT WINAPI ddraw7_EnumSurfaces(IDirectDraw7 *iface, DWORD Flags,
>   static HRESULT WINAPI ddraw4_EnumSurfaces(IDirectDraw4 *iface, DWORD flags,
>           DDSURFACEDESC2 *surface_desc, void *context, LPDDENUMSURFACESCALLBACK2 callback)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       struct surfacescallback2_context cbcontext;
>
>       TRACE("iface %p, flags %#x, surface_desc %p, context %p, callback %p.\n",
> @@ -3550,14 +3540,14 @@ static HRESULT WINAPI ddraw4_EnumSurfaces(IDirectDraw4 *iface, DWORD flags,
>       cbcontext.func = callback;
>       cbcontext.context = context;
>
> -    return ddraw7_EnumSurfaces(&This->IDirectDraw7_iface, flags, surface_desc,
> +    return ddraw7_EnumSurfaces(&ddraw->IDirectDraw7_iface, flags, surface_desc,
>               &cbcontext, EnumSurfacesCallback2Thunk);
>   }
>
>   static HRESULT WINAPI ddraw2_EnumSurfaces(IDirectDraw2 *iface, DWORD flags,
>           DDSURFACEDESC *surface_desc, void *context, LPDDENUMSURFACESCALLBACK callback)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       struct surfacescallback_context cbcontext;
>       DDSURFACEDESC2 surface_desc2;
>
> @@ -3568,14 +3558,14 @@ static HRESULT WINAPI ddraw2_EnumSurfaces(IDirectDraw2 *iface, DWORD flags,
>       cbcontext.context = context;
>
>       if (surface_desc) DDSD_to_DDSD2(surface_desc,&surface_desc2);
> -    return ddraw7_EnumSurfaces(&This->IDirectDraw7_iface, flags,
> +    return ddraw7_EnumSurfaces(&ddraw->IDirectDraw7_iface, flags,
>               surface_desc ?&surface_desc2 : NULL,&cbcontext, EnumSurfacesCallbackThunk);
>   }
>
>   static HRESULT WINAPI ddraw1_EnumSurfaces(IDirectDraw *iface, DWORD flags,
>           DDSURFACEDESC *surface_desc, void *context, LPDDENUMSURFACESCALLBACK callback)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>       struct surfacescallback_context cbcontext;
>       DDSURFACEDESC2 surface_desc2;
>
> @@ -3586,7 +3576,7 @@ static HRESULT WINAPI ddraw1_EnumSurfaces(IDirectDraw *iface, DWORD flags,
>       cbcontext.context = context;
>
>       if (surface_desc) DDSD_to_DDSD2(surface_desc,&surface_desc2);
> -    return ddraw7_EnumSurfaces(&This->IDirectDraw7_iface, flags,
> +    return ddraw7_EnumSurfaces(&ddraw->IDirectDraw7_iface, flags,
>               surface_desc ?&surface_desc2 : NULL,&cbcontext, EnumSurfacesCallbackThunk);
>   }
>
> @@ -3659,34 +3649,34 @@ static HRESULT WINAPI ddraw7_CreateClipper(IDirectDraw7 *iface, DWORD Flags,
>   static HRESULT WINAPI ddraw4_CreateClipper(IDirectDraw4 *iface, DWORD flags,
>           IDirectDrawClipper **clipper, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>
>       TRACE("iface %p, flags %#x, clipper %p, outer_unknown %p.\n",
>               iface, flags, clipper, outer_unknown);
>
> -    return ddraw7_CreateClipper(&This->IDirectDraw7_iface, flags, clipper, outer_unknown);
> +    return ddraw7_CreateClipper(&ddraw->IDirectDraw7_iface, flags, clipper, outer_unknown);
>   }
>
>   static HRESULT WINAPI ddraw2_CreateClipper(IDirectDraw2 *iface,
>           DWORD flags, IDirectDrawClipper **clipper, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>
>       TRACE("iface %p, flags %#x, clipper %p, outer_unknown %p.\n",
>               iface, flags, clipper, outer_unknown);
>
> -    return ddraw7_CreateClipper(&This->IDirectDraw7_iface, flags, clipper, outer_unknown);
> +    return ddraw7_CreateClipper(&ddraw->IDirectDraw7_iface, flags, clipper, outer_unknown);
>   }
>
>   static HRESULT WINAPI ddraw1_CreateClipper(IDirectDraw *iface,
>           DWORD flags, IDirectDrawClipper **clipper, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>
>       TRACE("iface %p, flags %#x, clipper %p, outer_unknown %p.\n",
>               iface, flags, clipper, outer_unknown);
>
> -    return ddraw7_CreateClipper(&This->IDirectDraw7_iface, flags, clipper, outer_unknown);
> +    return ddraw7_CreateClipper(&ddraw->IDirectDraw7_iface, flags, clipper, outer_unknown);
>   }
>
>   /*****************************************************************************
> @@ -3709,7 +3699,7 @@ static HRESULT WINAPI ddraw1_CreateClipper(IDirectDraw *iface,
>   static HRESULT WINAPI ddraw7_CreatePalette(IDirectDraw7 *iface, DWORD Flags,
>           PALETTEENTRY *ColorTable, IDirectDrawPalette **Palette, IUnknown *pUnkOuter)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw7(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw7(iface);
>       IDirectDrawPaletteImpl *object;
>       HRESULT hr;
>
> @@ -3722,7 +3712,7 @@ static HRESULT WINAPI ddraw7_CreatePalette(IDirectDraw7 *iface, DWORD Flags,
>       wined3d_mutex_lock();
>
>       /* The refcount test shows that a cooplevel is required for this */
> -    if(!This->cooperative_level)
> +    if (!ddraw->cooperative_level)
>       {
>           WARN("No cooperative level set, returning DDERR_NOCOOPERATIVELEVELSET\n");
>           wined3d_mutex_unlock();
> @@ -3737,7 +3727,7 @@ static HRESULT WINAPI ddraw7_CreatePalette(IDirectDraw7 *iface, DWORD Flags,
>           return E_OUTOFMEMORY;
>       }
>
> -    hr = ddraw_palette_init(object, This, Flags, ColorTable);
> +    hr = ddraw_palette_init(object, ddraw, Flags, ColorTable);
>       if (FAILED(hr))
>       {
>           WARN("Failed to initialize palette, hr %#x.\n", hr);
> @@ -3756,17 +3746,17 @@ static HRESULT WINAPI ddraw7_CreatePalette(IDirectDraw7 *iface, DWORD Flags,
>   static HRESULT WINAPI ddraw4_CreatePalette(IDirectDraw4 *iface, DWORD flags, PALETTEENTRY *entries,
>           IDirectDrawPalette **palette, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       HRESULT hr;
>
>       TRACE("iface %p, flags %#x, entries %p, palette %p, outer_unknown %p.\n",
>               iface, flags, entries, palette, outer_unknown);
>
> -    hr = ddraw7_CreatePalette(&This->IDirectDraw7_iface, flags, entries, palette, outer_unknown);
> +    hr = ddraw7_CreatePalette(&ddraw->IDirectDraw7_iface, flags, entries, palette, outer_unknown);
>       if (SUCCEEDED(hr)&&  *palette)
>       {
>           IDirectDrawPaletteImpl *impl = impl_from_IDirectDrawPalette(*palette);
> -        IDirectDraw7_Release(&This->IDirectDraw7_iface);
> +        IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
>           IDirectDraw4_AddRef(iface);
>           impl->ifaceToRelease = (IUnknown *)iface;
>       }
> @@ -3776,17 +3766,17 @@ static HRESULT WINAPI ddraw4_CreatePalette(IDirectDraw4 *iface, DWORD flags, PAL
>   static HRESULT WINAPI ddraw2_CreatePalette(IDirectDraw2 *iface, DWORD flags,
>           PALETTEENTRY *entries, IDirectDrawPalette **palette, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       HRESULT hr;
>
>       TRACE("iface %p, flags %#x, entries %p, palette %p, outer_unknown %p.\n",
>               iface, flags, entries, palette, outer_unknown);
>
> -    hr = ddraw7_CreatePalette(&This->IDirectDraw7_iface, flags, entries, palette, outer_unknown);
> +    hr = ddraw7_CreatePalette(&ddraw->IDirectDraw7_iface, flags, entries, palette, outer_unknown);
>       if (SUCCEEDED(hr)&&  *palette)
>       {
>           IDirectDrawPaletteImpl *impl = impl_from_IDirectDrawPalette(*palette);
> -        IDirectDraw7_Release(&This->IDirectDraw7_iface);
> +        IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
>           impl->ifaceToRelease = NULL;
>       }
>
> @@ -3796,17 +3786,17 @@ static HRESULT WINAPI ddraw2_CreatePalette(IDirectDraw2 *iface, DWORD flags,
>   static HRESULT WINAPI ddraw1_CreatePalette(IDirectDraw *iface, DWORD flags,
>           PALETTEENTRY *entries, IDirectDrawPalette **palette, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>       HRESULT hr;
>
>       TRACE("iface %p, flags %#x, entries %p, palette %p, outer_unknown %p.\n",
>               iface, flags, entries, palette, outer_unknown);
>
> -    hr = ddraw7_CreatePalette(&This->IDirectDraw7_iface, flags, entries, palette, outer_unknown);
> +    hr = ddraw7_CreatePalette(&ddraw->IDirectDraw7_iface, flags, entries, palette, outer_unknown);
>       if (SUCCEEDED(hr)&&  *palette)
>       {
>           IDirectDrawPaletteImpl *impl = impl_from_IDirectDrawPalette(*palette);
> -        IDirectDraw7_Release(&This->IDirectDraw7_iface);
> +        IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
>           impl->ifaceToRelease = NULL;
>       }
>
> @@ -3847,14 +3837,15 @@ static HRESULT WINAPI ddraw7_DuplicateSurface(IDirectDraw7 *iface,
>   static HRESULT WINAPI ddraw4_DuplicateSurface(IDirectDraw4 *iface, IDirectDrawSurface4 *src,
>           IDirectDrawSurface4 **dst)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw4(iface);
>       IDirectDrawSurfaceImpl *src_impl = unsafe_impl_from_IDirectDrawSurface4(src);
>       IDirectDrawSurface7 *dst7;
>       IDirectDrawSurfaceImpl *dst_impl;
>       HRESULT hr;
>
>       TRACE("iface %p, src %p, dst %p.\n", iface, src, dst);
> -    hr = ddraw7_DuplicateSurface(&This->IDirectDraw7_iface,
> +
> +    hr = ddraw7_DuplicateSurface(&ddraw->IDirectDraw7_iface,
>               src_impl ?&src_impl->IDirectDrawSurface7_iface : NULL,&dst7);
>       if (FAILED(hr))
>       {
> @@ -3872,14 +3863,15 @@ static HRESULT WINAPI ddraw4_DuplicateSurface(IDirectDraw4 *iface, IDirectDrawSu
>   static HRESULT WINAPI ddraw2_DuplicateSurface(IDirectDraw2 *iface,
>           IDirectDrawSurface *src, IDirectDrawSurface **dst)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw2(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw2(iface);
>       IDirectDrawSurfaceImpl *src_impl = unsafe_impl_from_IDirectDrawSurface(src);
>       IDirectDrawSurface7 *dst7;
>       IDirectDrawSurfaceImpl *dst_impl;
>       HRESULT hr;
>
>       TRACE("iface %p, src %p, dst %p.\n", iface, src, dst);
> -    hr = ddraw7_DuplicateSurface(&This->IDirectDraw7_iface,
> +
> +    hr = ddraw7_DuplicateSurface(&ddraw->IDirectDraw7_iface,
>               src_impl ?&src_impl->IDirectDrawSurface7_iface : NULL,&dst7);
>       if (FAILED(hr))
>           return hr;
> @@ -3894,14 +3886,15 @@ static HRESULT WINAPI ddraw2_DuplicateSurface(IDirectDraw2 *iface,
>   static HRESULT WINAPI ddraw1_DuplicateSurface(IDirectDraw *iface, IDirectDrawSurface *src,
>           IDirectDrawSurface **dst)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirectDraw(iface);
> +    struct ddraw *ddraw = impl_from_IDirectDraw(iface);
>       IDirectDrawSurfaceImpl *src_impl = unsafe_impl_from_IDirectDrawSurface(src);
>       IDirectDrawSurface7 *dst7;
>       IDirectDrawSurfaceImpl *dst_impl;
>       HRESULT hr;
>
>       TRACE("iface %p, src %p, dst %p.\n", iface, src, dst);
> -    hr = ddraw7_DuplicateSurface(&This->IDirectDraw7_iface,
> +
> +    hr = ddraw7_DuplicateSurface(&ddraw->IDirectDraw7_iface,
>               src_impl ?&src_impl->IDirectDrawSurface7_iface : NULL,&dst7);
>       if (FAILED(hr))
>           return hr;
> @@ -3929,7 +3922,7 @@ static HRESULT WINAPI ddraw1_DuplicateSurface(IDirectDraw *iface, IDirectDrawSur
>    *****************************************************************************/
>   static HRESULT WINAPI d3d7_EnumDevices(IDirect3D7 *iface, LPD3DENUMDEVICESCALLBACK7 callback, void *context)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D7(iface);
>       D3DDEVICEDESC7 device_desc7;
>       D3DDEVICEDESC device_desc1;
>       HRESULT hr;
> @@ -3942,7 +3935,7 @@ static HRESULT WINAPI d3d7_EnumDevices(IDirect3D7 *iface, LPD3DENUMDEVICESCALLBA
>
>       wined3d_mutex_lock();
>
> -    hr = IDirect3DImpl_GetCaps(This->wined3d,&device_desc1,&device_desc7);
> +    hr = IDirect3DImpl_GetCaps(ddraw->wined3d,&device_desc1,&device_desc7);
>       if (hr != D3D_OK)
>       {
>           wined3d_mutex_unlock();
> @@ -3991,7 +3984,7 @@ static HRESULT WINAPI d3d3_EnumDevices(IDirect3D3 *iface, LPD3DENUMDEVICESCALLBA
>   {
>       static CHAR wined3d_description[] = "Wine D3DDevice using WineD3D and OpenGL";
>
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       D3DDEVICEDESC device_desc1, hal_desc, hel_desc;
>       D3DDEVICEDESC7 device_desc7;
>       HRESULT hr;
> @@ -4009,7 +4002,7 @@ static HRESULT WINAPI d3d3_EnumDevices(IDirect3D3 *iface, LPD3DENUMDEVICESCALLBA
>
>       wined3d_mutex_lock();
>
> -    hr = IDirect3DImpl_GetCaps(This->wined3d,&device_desc1,&device_desc7);
> +    hr = IDirect3DImpl_GetCaps(ddraw->wined3d,&device_desc1,&device_desc7);
>       if (hr != D3D_OK)
>       {
>           wined3d_mutex_unlock();
> @@ -4035,7 +4028,7 @@ static HRESULT WINAPI d3d3_EnumDevices(IDirect3D3 *iface, LPD3DENUMDEVICESCALLBA
>        * limitation flag), and it refuses all devices that have the perspective
>        * flag set. This way it refuses the emulation device, and HAL devices
>        * never have POW2 unset in d3d7 on windows. */
> -    if (This->d3dversion != 1)
> +    if (ddraw->d3dversion != 1)
>       {
>           static CHAR reference_description[] = "RGB Direct3D emulation";
>
> @@ -4092,20 +4085,20 @@ static HRESULT WINAPI d3d3_EnumDevices(IDirect3D3 *iface, LPD3DENUMDEVICESCALLBA
>
>   static HRESULT WINAPI d3d2_EnumDevices(IDirect3D2 *iface, LPD3DENUMDEVICESCALLBACK callback, void *context)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p, callback %p, context %p.\n", iface, callback, context);
>
> -    return d3d3_EnumDevices(&This->IDirect3D3_iface, callback, context);
> +    return d3d3_EnumDevices(&ddraw->IDirect3D3_iface, callback, context);
>   }
>
>   static HRESULT WINAPI d3d1_EnumDevices(IDirect3D *iface, LPD3DENUMDEVICESCALLBACK callback, void *context)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p, callback %p, context %p.\n", iface, callback, context);
>
> -    return d3d3_EnumDevices(&This->IDirect3D3_iface, callback, context);
> +    return d3d3_EnumDevices(&ddraw->IDirect3D3_iface, callback, context);
>   }
>
>   /*****************************************************************************
> @@ -4132,7 +4125,7 @@ static HRESULT WINAPI d3d1_EnumDevices(IDirect3D *iface, LPD3DENUMDEVICESCALLBAC
>   static HRESULT WINAPI d3d3_CreateLight(IDirect3D3 *iface, IDirect3DLight **light,
>           IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       IDirect3DLightImpl *object;
>
>       TRACE("iface %p, light %p, outer_unknown %p.\n", iface, light, outer_unknown);
> @@ -4146,7 +4139,7 @@ static HRESULT WINAPI d3d3_CreateLight(IDirect3D3 *iface, IDirect3DLight **light
>           return DDERR_OUTOFMEMORY;
>       }
>
> -    d3d_light_init(object, This);
> +    d3d_light_init(object, ddraw);
>
>       TRACE("Created light %p.\n", object);
>       *light =&object->IDirect3DLight_iface;
> @@ -4156,20 +4149,20 @@ static HRESULT WINAPI d3d3_CreateLight(IDirect3D3 *iface, IDirect3DLight **light
>
>   static HRESULT WINAPI d3d2_CreateLight(IDirect3D2 *iface, IDirect3DLight **light, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p, light %p, outer_unknown %p.\n", iface, light, outer_unknown);
>
> -    return d3d3_CreateLight(&This->IDirect3D3_iface, light, outer_unknown);
> +    return d3d3_CreateLight(&ddraw->IDirect3D3_iface, light, outer_unknown);
>   }
>
>   static HRESULT WINAPI d3d1_CreateLight(IDirect3D *iface, IDirect3DLight **light, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p, light %p, outer_unknown %p.\n", iface, light, outer_unknown);
>
> -    return d3d3_CreateLight(&This->IDirect3D3_iface, light, outer_unknown);
> +    return d3d3_CreateLight(&ddraw->IDirect3D3_iface, light, outer_unknown);
>   }
>
>   /*****************************************************************************
> @@ -4195,14 +4188,14 @@ static HRESULT WINAPI d3d1_CreateLight(IDirect3D *iface, IDirect3DLight **light,
>   static HRESULT WINAPI d3d3_CreateMaterial(IDirect3D3 *iface, IDirect3DMaterial3 **material,
>           IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       IDirect3DMaterialImpl *object;
>
>       TRACE("iface %p, material %p, outer_unknown %p.\n", iface, material, outer_unknown);
>
>       if (outer_unknown) return CLASS_E_NOAGGREGATION;
>
> -    object = d3d_material_create(This);
> +    object = d3d_material_create(ddraw);
>       if (!object)
>       {
>           ERR("Failed to allocate material memory.\n");
> @@ -4218,12 +4211,12 @@ static HRESULT WINAPI d3d3_CreateMaterial(IDirect3D3 *iface, IDirect3DMaterial3
>   static HRESULT WINAPI d3d2_CreateMaterial(IDirect3D2 *iface, IDirect3DMaterial2 **material,
>           IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>       IDirect3DMaterialImpl *object;
>
>       TRACE("iface %p, material %p, outer_unknown %p.\n", iface, material, outer_unknown);
>
> -    object = d3d_material_create(This);
> +    object = d3d_material_create(ddraw);
>       if (!object)
>       {
>           ERR("Failed to allocate material memory.\n");
> @@ -4239,12 +4232,12 @@ static HRESULT WINAPI d3d2_CreateMaterial(IDirect3D2 *iface, IDirect3DMaterial2
>   static HRESULT WINAPI d3d1_CreateMaterial(IDirect3D *iface, IDirect3DMaterial **material,
>           IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D(iface);
>       IDirect3DMaterialImpl *object;
>
>       TRACE("iface %p, material %p, outer_unknown %p.\n", iface, material, outer_unknown);
>
> -    object = d3d_material_create(This);
> +    object = d3d_material_create(ddraw);
>       if (!object)
>       {
>           ERR("Failed to allocate material memory.\n");
> @@ -4280,7 +4273,7 @@ static HRESULT WINAPI d3d1_CreateMaterial(IDirect3D *iface, IDirect3DMaterial **
>   static HRESULT WINAPI d3d3_CreateViewport(IDirect3D3 *iface, IDirect3DViewport3 **viewport,
>           IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       IDirect3DViewportImpl *object;
>
>       TRACE("iface %p, viewport %p, outer_unknown %p.\n", iface, viewport, outer_unknown);
> @@ -4294,7 +4287,7 @@ static HRESULT WINAPI d3d3_CreateViewport(IDirect3D3 *iface, IDirect3DViewport3
>           return DDERR_OUTOFMEMORY;
>       }
>
> -    d3d_viewport_init(object, This);
> +    d3d_viewport_init(object, ddraw);
>
>       TRACE("Created viewport %p.\n", object);
>       *viewport =&object->IDirect3DViewport3_iface;
> @@ -4304,21 +4297,21 @@ static HRESULT WINAPI d3d3_CreateViewport(IDirect3D3 *iface, IDirect3DViewport3
>
>   static HRESULT WINAPI d3d2_CreateViewport(IDirect3D2 *iface, IDirect3DViewport2 **viewport, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p, viewport %p, outer_unknown %p.\n", iface, viewport, outer_unknown);
>
> -    return d3d3_CreateViewport(&This->IDirect3D3_iface, (IDirect3DViewport3 **)viewport,
> +    return d3d3_CreateViewport(&ddraw->IDirect3D3_iface, (IDirect3DViewport3 **)viewport,
>               outer_unknown);
>   }
>
>   static HRESULT WINAPI d3d1_CreateViewport(IDirect3D *iface, IDirect3DViewport **viewport, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p, viewport %p, outer_unknown %p.\n", iface, viewport, outer_unknown);
>
> -    return d3d3_CreateViewport(&This->IDirect3D3_iface, (IDirect3DViewport3 **)viewport,
> +    return d3d3_CreateViewport(&ddraw->IDirect3D3_iface, (IDirect3DViewport3 **)viewport,
>               outer_unknown);
>   }
>
> @@ -4340,7 +4333,7 @@ static HRESULT WINAPI d3d1_CreateViewport(IDirect3D *iface, IDirect3DViewport **
>    *****************************************************************************/
>   static HRESULT WINAPI d3d3_FindDevice(IDirect3D3 *iface, D3DFINDDEVICESEARCH *fds, D3DFINDDEVICERESULT *fdr)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       D3DDEVICEDESC7 desc7;
>       D3DDEVICEDESC desc1;
>       HRESULT hr;
> @@ -4373,7 +4366,7 @@ static HRESULT WINAPI d3d3_FindDevice(IDirect3D3 *iface, D3DFINDDEVICESEARCH *fd
>       }
>
>       /* Get the caps */
> -    hr = IDirect3DImpl_GetCaps(This->wined3d,&desc1,&desc7);
> +    hr = IDirect3DImpl_GetCaps(ddraw->wined3d,&desc1,&desc7);
>       if (hr != D3D_OK) return hr;
>
>       /* Now return our own GUID */
> @@ -4388,20 +4381,20 @@ static HRESULT WINAPI d3d3_FindDevice(IDirect3D3 *iface, D3DFINDDEVICESEARCH *fd
>
>   static HRESULT WINAPI d3d2_FindDevice(IDirect3D2 *iface, D3DFINDDEVICESEARCH *fds, D3DFINDDEVICERESULT *fdr)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>
>       TRACE("iface %p, fds %p, fdr %p.\n", iface, fds, fdr);
>
> -    return d3d3_FindDevice(&This->IDirect3D3_iface, fds, fdr);
> +    return d3d3_FindDevice(&ddraw->IDirect3D3_iface, fds, fdr);
>   }
>
>   static HRESULT WINAPI d3d1_FindDevice(IDirect3D *iface, D3DFINDDEVICESEARCH *fds, D3DFINDDEVICERESULT *fdr)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D(iface);
>
>       TRACE("iface %p, fds %p, fdr %p.\n", iface, fds, fdr);
>
> -    return d3d3_FindDevice(&This->IDirect3D3_iface, fds, fdr);
> +    return d3d3_FindDevice(&ddraw->IDirect3D3_iface, fds, fdr);
>   }
>
>   /*****************************************************************************
> @@ -4429,7 +4422,7 @@ static HRESULT WINAPI d3d7_CreateDevice(IDirect3D7 *iface, REFCLSID riid,
>           IDirectDrawSurface7 *surface, IDirect3DDevice7 **device)
>   {
>       IDirectDrawSurfaceImpl *target = unsafe_impl_from_IDirectDrawSurface7(surface);
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D7(iface);
>       IDirect3DDeviceImpl *object;
>       HRESULT hr;
>
> @@ -4450,7 +4443,7 @@ static HRESULT WINAPI d3d7_CreateDevice(IDirect3D7 *iface, REFCLSID riid,
>           return DDERR_NO3D;
>       }
>
> -    if (This->d3ddevice)
> +    if (ddraw->d3ddevice)
>       {
>           FIXME("Only one Direct3D device per DirectDraw object supported.\n");
>           wined3d_mutex_unlock();
> @@ -4465,7 +4458,7 @@ static HRESULT WINAPI d3d7_CreateDevice(IDirect3D7 *iface, REFCLSID riid,
>           return DDERR_OUTOFMEMORY;
>       }
>
> -    hr = d3d_device_init(object, This, target);
> +    hr = d3d_device_init(object, ddraw, target);
>       if (FAILED(hr))
>       {
>           WARN("Failed to initialize device, hr %#x.\n", hr);
> @@ -4485,7 +4478,7 @@ static HRESULT WINAPI d3d7_CreateDevice(IDirect3D7 *iface, REFCLSID riid,
>   static HRESULT WINAPI d3d3_CreateDevice(IDirect3D3 *iface, REFCLSID riid,
>           IDirectDrawSurface4 *surface, IDirect3DDevice3 **device, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       IDirectDrawSurfaceImpl *surface_impl = unsafe_impl_from_IDirectDrawSurface4(surface);
>       IDirect3DDevice7 *device7;
>       IDirect3DDeviceImpl *device_impl;
> @@ -4496,7 +4489,7 @@ static HRESULT WINAPI d3d3_CreateDevice(IDirect3D3 *iface, REFCLSID riid,
>
>       if (outer_unknown) return CLASS_E_NOAGGREGATION;
>
> -    hr = d3d7_CreateDevice(&This->IDirect3D7_iface, riid,
> +    hr = d3d7_CreateDevice(&ddraw->IDirect3D7_iface, riid,
>               surface_impl ?&surface_impl->IDirectDrawSurface7_iface : NULL, device ?&device7 : NULL);
>       if (SUCCEEDED(hr))
>       {
> @@ -4510,7 +4503,7 @@ static HRESULT WINAPI d3d3_CreateDevice(IDirect3D3 *iface, REFCLSID riid,
>   static HRESULT WINAPI d3d2_CreateDevice(IDirect3D2 *iface, REFCLSID riid,
>           IDirectDrawSurface *surface, IDirect3DDevice2 **device)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D2(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D2(iface);
>       IDirectDrawSurfaceImpl *surface_impl = unsafe_impl_from_IDirectDrawSurface(surface);
>       IDirect3DDevice7 *device7;
>       IDirect3DDeviceImpl *device_impl;
> @@ -4519,7 +4512,7 @@ static HRESULT WINAPI d3d2_CreateDevice(IDirect3D2 *iface, REFCLSID riid,
>       TRACE("iface %p, riid %s, surface %p, device %p.\n",
>               iface, debugstr_guid(riid), surface, device);
>
> -    hr = d3d7_CreateDevice(&This->IDirect3D7_iface, riid,
> +    hr = d3d7_CreateDevice(&ddraw->IDirect3D7_iface, riid,
>               surface_impl ?&surface_impl->IDirectDrawSurface7_iface : NULL, device ?&device7 : NULL);
>       if (SUCCEEDED(hr))
>       {
> @@ -4553,7 +4546,7 @@ static HRESULT WINAPI d3d2_CreateDevice(IDirect3D2 *iface, REFCLSID riid,
>   static HRESULT WINAPI d3d7_CreateVertexBuffer(IDirect3D7 *iface, D3DVERTEXBUFFERDESC *desc,
>           IDirect3DVertexBuffer7 **vertex_buffer, DWORD flags)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D7(iface);
>       IDirect3DVertexBufferImpl *object;
>       HRESULT hr;
>
> @@ -4562,7 +4555,7 @@ static HRESULT WINAPI d3d7_CreateVertexBuffer(IDirect3D7 *iface, D3DVERTEXBUFFER
>
>       if (!vertex_buffer || !desc) return DDERR_INVALIDPARAMS;
>
> -    hr = d3d_vertex_buffer_create(&object, This, desc);
> +    hr = d3d_vertex_buffer_create(&object, ddraw, desc);
>       if (hr == D3D_OK)
>       {
>           TRACE("Created vertex buffer %p.\n", object);
> @@ -4577,7 +4570,7 @@ static HRESULT WINAPI d3d7_CreateVertexBuffer(IDirect3D7 *iface, D3DVERTEXBUFFER
>   static HRESULT WINAPI d3d3_CreateVertexBuffer(IDirect3D3 *iface, D3DVERTEXBUFFERDESC *desc,
>           IDirect3DVertexBuffer **vertex_buffer, DWORD flags, IUnknown *outer_unknown)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>       IDirect3DVertexBufferImpl *object;
>       HRESULT hr;
>
> @@ -4589,7 +4582,7 @@ static HRESULT WINAPI d3d3_CreateVertexBuffer(IDirect3D3 *iface, D3DVERTEXBUFFER
>       if (!vertex_buffer || !desc)
>           return DDERR_INVALIDPARAMS;
>
> -    hr = d3d_vertex_buffer_create(&object, This, desc);
> +    hr = d3d_vertex_buffer_create(&object, ddraw, desc);
>       if (hr == D3D_OK)
>       {
>           TRACE("Created vertex buffer %p.\n", object);
> @@ -4622,7 +4615,7 @@ static HRESULT WINAPI d3d3_CreateVertexBuffer(IDirect3D3 *iface, D3DVERTEXBUFFER
>   static HRESULT WINAPI d3d7_EnumZBufferFormats(IDirect3D7 *iface, REFCLSID device_iid,
>           LPD3DENUMPIXELFORMATSCALLBACK callback, void *context)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D7(iface);
>       struct wined3d_display_mode mode;
>       enum wined3d_device_type type;
>       unsigned int i;
> @@ -4681,11 +4674,11 @@ static HRESULT WINAPI d3d7_EnumZBufferFormats(IDirect3D7 *iface, REFCLSID device
>        * not like that we'll have to find some workaround, like iterating over
>        * all imaginable formats and collecting all the depth stencil formats we
>        * can get. */
> -    hr = wined3d_device_get_display_mode(This->wined3d_device, 0,&mode);
> +    hr = wined3d_device_get_display_mode(ddraw->wined3d_device, 0,&mode);
>
>       for (i = 0; i<  (sizeof(formats) / sizeof(*formats)); ++i)
>       {
> -        hr = wined3d_check_device_format(This->wined3d, WINED3DADAPTER_DEFAULT, type, mode.format_id,
> +        hr = wined3d_check_device_format(ddraw->wined3d, WINED3DADAPTER_DEFAULT, type, mode.format_id,
>                   WINED3DUSAGE_DEPTHSTENCIL, WINED3D_RTYPE_SURFACE, formats[i], WINED3D_SURFACE_TYPE_OPENGL);
>           if (SUCCEEDED(hr))
>           {
> @@ -4710,7 +4703,7 @@ static HRESULT WINAPI d3d7_EnumZBufferFormats(IDirect3D7 *iface, REFCLSID device
>        * while others used dwZBufferBitDepth=32. In either case the pitch matches a 32 bits per
>        * pixel format, so we use dwZBufferBitDepth=32. Some games expect 24. Windows Vista and
>        * newer enumerate both versions, so we do the same(bug 22434) */
> -    hr = wined3d_check_device_format(This->wined3d, WINED3DADAPTER_DEFAULT, type, mode.format_id,
> +    hr = wined3d_check_device_format(ddraw->wined3d, WINED3DADAPTER_DEFAULT, type, mode.format_id,
>               WINED3DUSAGE_DEPTHSTENCIL, WINED3D_RTYPE_SURFACE, WINED3DFMT_X8D24_UNORM, WINED3D_SURFACE_TYPE_OPENGL);
>       if (SUCCEEDED(hr))
>       {
> @@ -4733,12 +4726,12 @@ static HRESULT WINAPI d3d7_EnumZBufferFormats(IDirect3D7 *iface, REFCLSID device
>   static HRESULT WINAPI d3d3_EnumZBufferFormats(IDirect3D3 *iface, REFCLSID device_iid,
>           LPD3DENUMPIXELFORMATSCALLBACK callback, void *context)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>
>       TRACE("iface %p, device_iid %s, callback %p, context %p.\n",
>               iface, debugstr_guid(device_iid), callback, context);
>
> -    return d3d7_EnumZBufferFormats(&This->IDirect3D7_iface, device_iid, callback, context);
> +    return d3d7_EnumZBufferFormats(&ddraw->IDirect3D7_iface, device_iid, callback, context);
>   }
>
>   /*****************************************************************************
> @@ -4755,13 +4748,13 @@ static HRESULT WINAPI d3d3_EnumZBufferFormats(IDirect3D3 *iface, REFCLSID device
>    *****************************************************************************/
>   static HRESULT WINAPI d3d7_EvictManagedTextures(IDirect3D7 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D7(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D7(iface);
>
>       TRACE("iface %p!\n", iface);
>
>       wined3d_mutex_lock();
> -    if (This->d3d_initialized)
> -        wined3d_device_evict_managed_resources(This->wined3d_device);
> +    if (ddraw->d3d_initialized)
> +        wined3d_device_evict_managed_resources(ddraw->wined3d_device);
>       wined3d_mutex_unlock();
>
>       return D3D_OK;
> @@ -4769,11 +4762,11 @@ static HRESULT WINAPI d3d7_EvictManagedTextures(IDirect3D7 *iface)
>
>   static HRESULT WINAPI d3d3_EvictManagedTextures(IDirect3D3 *iface)
>   {
> -    IDirectDrawImpl *This = impl_from_IDirect3D3(iface);
> +    struct ddraw *ddraw = impl_from_IDirect3D3(iface);
>
>       TRACE("iface %p.\n", iface);
>
> -    return d3d7_EvictManagedTextures(&This->IDirect3D7_iface);
> +    return d3d7_EvictManagedTextures(&ddraw->IDirect3D7_iface);
>   }
>
>   /*****************************************************************************
> @@ -5297,7 +5290,7 @@ static const struct IDirect3DVtbl d3d1_vtbl =
>    *  NULL in case of an error, the vertex declaration for the FVF otherwise.
>    *
>    *****************************************************************************/
> -struct wined3d_vertex_declaration *ddraw_find_decl(IDirectDrawImpl *This, DWORD fvf)
> +struct wined3d_vertex_declaration *ddraw_find_decl(struct ddraw *This, DWORD fvf)
>   {
>       struct wined3d_vertex_declaration *pDecl = NULL;
>       HRESULT hr;
> @@ -5348,9 +5341,9 @@ struct wined3d_vertex_declaration *ddraw_find_decl(IDirectDrawImpl *This, DWORD
>       return pDecl;
>   }
>
> -static inline struct IDirectDrawImpl *ddraw_from_device_parent(struct wined3d_device_parent *device_parent)
> +static inline struct ddraw *ddraw_from_device_parent(struct wined3d_device_parent *device_parent)
>   {
> -    return CONTAINING_RECORD(device_parent, struct IDirectDrawImpl, device_parent);
> +    return CONTAINING_RECORD(device_parent, struct ddraw, device_parent);
>   }
>
>   static void CDECL device_parent_wined3d_device_created(struct wined3d_device_parent *device_parent,
> @@ -5363,7 +5356,7 @@ static void CDECL device_parent_wined3d_device_created(struct wined3d_device_par
>    * wined3d mutex. */
>   static void CDECL device_parent_mode_changed(struct wined3d_device_parent *device_parent)
>   {
> -    struct IDirectDrawImpl *ddraw = ddraw_from_device_parent(device_parent);
> +    struct ddraw *ddraw = ddraw_from_device_parent(device_parent);
>       MONITORINFO monitor_info;
>       HMONITOR monitor;
>       BOOL ret;
> @@ -5397,7 +5390,7 @@ static HRESULT CDECL device_parent_create_surface(struct wined3d_device_parent *
>           void *container_parent, UINT width, UINT height, enum wined3d_format_id format, DWORD usage,
>           enum wined3d_pool pool, UINT level, enum wined3d_cubemap_face face, struct wined3d_surface **surface)
>   {
> -    struct IDirectDrawImpl *ddraw = ddraw_from_device_parent(device_parent);
> +    struct ddraw *ddraw = ddraw_from_device_parent(device_parent);
>       IDirectDrawSurfaceImpl *surf = NULL;
>       UINT i = 0;
>       DDSCAPS2 searchcaps = ddraw->tex_root->surface_desc.ddsCaps;
> @@ -5466,7 +5459,7 @@ static HRESULT CDECL device_parent_create_surface(struct wined3d_device_parent *
>
>   static void STDMETHODCALLTYPE ddraw_frontbuffer_destroyed(void *parent)
>   {
> -    struct IDirectDrawImpl *ddraw = parent;
> +    struct ddraw *ddraw = parent;
>       ddraw->wined3d_frontbuffer = NULL;
>   }
>
> @@ -5480,7 +5473,7 @@ static HRESULT CDECL device_parent_create_rendertarget(struct wined3d_device_par
>           enum wined3d_multisample_type multisample_type, DWORD multisample_quality, BOOL lockable,
>           struct wined3d_surface **surface)
>   {
> -    struct IDirectDrawImpl *ddraw = ddraw_from_device_parent(device_parent);
> +    struct ddraw *ddraw = ddraw_from_device_parent(device_parent);
>       DWORD flags = 0;
>       HRESULT hr;
>
> @@ -5532,7 +5525,7 @@ static HRESULT CDECL device_parent_create_volume(struct wined3d_device_parent *d
>   static HRESULT CDECL device_parent_create_swapchain(struct wined3d_device_parent *device_parent,
>           struct wined3d_swapchain_desc *desc, struct wined3d_swapchain **swapchain)
>   {
> -    struct IDirectDrawImpl *ddraw = ddraw_from_device_parent(device_parent);
> +    struct ddraw *ddraw = ddraw_from_device_parent(device_parent);
>       HRESULT hr;
>
>       TRACE("device_parent %p, desc %p, swapchain %p.\n", device_parent, desc, swapchain);
> @@ -5562,7 +5555,7 @@ static const struct wined3d_device_parent_ops ddraw_wined3d_device_parent_ops =
>       device_parent_create_swapchain,
>   };
>
> -HRESULT ddraw_init(IDirectDrawImpl *ddraw, enum wined3d_device_type device_type)
> +HRESULT ddraw_init(struct ddraw *ddraw, enum wined3d_device_type device_type)
>   {
>       HRESULT hr;
>       HDC hDC;
> diff --git a/dlls/ddraw/ddraw_private.h b/dlls/ddraw/ddraw_private.h
> index c87c737..f1ec33d 100644
> --- a/dlls/ddraw/ddraw_private.h
> +++ b/dlls/ddraw/ddraw_private.h
> @@ -41,7 +41,6 @@ extern const struct wined3d_parent_ops ddraw_surface_wined3d_parent_ops DECLSPEC
>   extern const struct wined3d_parent_ops ddraw_null_wined3d_parent_ops DECLSPEC_HIDDEN;
>
>   /* Typdef the interfaces */
> -typedef struct IDirectDrawImpl            IDirectDrawImpl;
>   typedef struct IDirectDrawSurfaceImpl     IDirectDrawSurfaceImpl;
>   typedef struct IDirectDrawPaletteImpl     IDirectDrawPaletteImpl;
>   typedef struct IDirect3DDeviceImpl        IDirect3DDeviceImpl;
> @@ -62,7 +61,7 @@ struct FvfToDecl
>       struct wined3d_vertex_declaration *decl;
>   };
>
> -struct IDirectDrawImpl
> +struct ddraw
>   {
>       /* Interfaces */
>       IDirectDraw7 IDirectDraw7_iface;
> @@ -122,10 +121,10 @@ struct IDirectDrawImpl
>
>   #define DDRAW_WINDOW_CLASS_NAME "DirectDrawDeviceWnd"
>
> -HRESULT ddraw_init(IDirectDrawImpl *ddraw, enum wined3d_device_type device_type) DECLSPEC_HIDDEN;
> -void ddraw_destroy_swapchain(IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
> +HRESULT ddraw_init(struct ddraw *ddraw, enum wined3d_device_type device_type) DECLSPEC_HIDDEN;
> +void ddraw_destroy_swapchain(struct ddraw *ddraw) DECLSPEC_HIDDEN;
>
> -static inline void ddraw_set_swapchain_window(struct IDirectDrawImpl *ddraw, HWND window)
> +static inline void ddraw_set_swapchain_window(struct ddraw *ddraw, HWND window)
>   {
>       if (window == GetDesktopWindow())
>           window = NULL;
> @@ -135,7 +134,7 @@ static inline void ddraw_set_swapchain_window(struct IDirectDrawImpl *ddraw, HWN
>   /* Utility functions */
>   void DDRAW_Convert_DDSCAPS_1_To_2(const DDSCAPS *pIn, DDSCAPS2 *pOut) DECLSPEC_HIDDEN;
>   void DDRAW_Convert_DDDEVICEIDENTIFIER_2_To_1(const DDDEVICEIDENTIFIER2 *pIn, DDDEVICEIDENTIFIER *pOut) DECLSPEC_HIDDEN;
> -struct wined3d_vertex_declaration *ddraw_find_decl(IDirectDrawImpl *This, DWORD fvf) DECLSPEC_HIDDEN;
> +struct wined3d_vertex_declaration *ddraw_find_decl(struct ddraw *ddraw, DWORD fvf) DECLSPEC_HIDDEN;
>
>   /* The default surface type */
>   extern enum wined3d_surface_type DefaultSurfaceType DECLSPEC_HIDDEN;
> @@ -162,7 +161,7 @@ struct IDirectDrawSurfaceImpl
>       int                     version;
>
>       /* Connections to other Objects */
> -    IDirectDrawImpl         *ddraw;
> +    struct ddraw *ddraw;
>       struct wined3d_surface *wined3d_surface;
>       struct wined3d_texture *wined3d_texture;
>
> @@ -200,7 +199,7 @@ struct IDirectDrawSurfaceImpl
>   };
>
>   HRESULT ddraw_surface_create_texture(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
> -HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddraw,
> +HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, struct ddraw *ddraw,
>           DDSURFACEDESC2 *desc, UINT mip_level, UINT version) DECLSPEC_HIDDEN;
>   ULONG ddraw_surface_release_iface(IDirectDrawSurfaceImpl *This) DECLSPEC_HIDDEN;
>
> @@ -288,7 +287,7 @@ struct IDirect3DDeviceImpl
>
>       /* Other object connections */
>       struct wined3d_device *wined3d_device;
> -    IDirectDrawImpl         *ddraw;
> +    struct ddraw *ddraw;
>       struct wined3d_buffer *indexbuffer;
>       IDirectDrawSurfaceImpl  *target;
>
> @@ -321,7 +320,7 @@ struct IDirect3DDeviceImpl
>       D3DMATRIXHANDLE          world, proj, view;
>   };
>
> -HRESULT d3d_device_init(IDirect3DDeviceImpl *device, IDirectDrawImpl *ddraw,
> +HRESULT d3d_device_init(IDirect3DDeviceImpl *device, struct ddraw *ddraw,
>           IDirectDrawSurfaceImpl *target) DECLSPEC_HIDDEN;
>
>   /* The IID */
> @@ -392,7 +391,7 @@ static inline IDirectDrawPaletteImpl *impl_from_IDirectDrawPalette(IDirectDrawPa
>   IDirectDrawPaletteImpl *unsafe_impl_from_IDirectDrawPalette(IDirectDrawPalette *iface) DECLSPEC_HIDDEN;
>
>   HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
> -        IDirectDrawImpl *ddraw, DWORD flags, PALETTEENTRY *entries) DECLSPEC_HIDDEN;
> +        struct ddraw *ddraw, DWORD flags, PALETTEENTRY *entries) DECLSPEC_HIDDEN;
>
>   /* Helper structures */
>   struct object_creation_info
> @@ -411,7 +410,7 @@ struct IDirect3DLightImpl
>       LONG ref;
>
>       /* IDirect3DLight fields */
> -    IDirectDrawImpl           *ddraw;
> +    struct ddraw *ddraw;
>
>       /* If this light is active for one viewport, put the viewport here */
>       IDirect3DViewportImpl     *active_viewport;
> @@ -427,7 +426,7 @@ struct IDirect3DLightImpl
>   /* Helper functions */
>   void light_activate(IDirect3DLightImpl *light) DECLSPEC_HIDDEN;
>   void light_deactivate(IDirect3DLightImpl *light) DECLSPEC_HIDDEN;
> -void d3d_light_init(IDirect3DLightImpl *light, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
> +void d3d_light_init(IDirect3DLightImpl *light, struct ddraw *ddraw) DECLSPEC_HIDDEN;
>   IDirect3DLightImpl *unsafe_impl_from_IDirect3DLight(IDirect3DLight *iface) DECLSPEC_HIDDEN;
>
>   /******************************************************************************
> @@ -441,7 +440,7 @@ struct IDirect3DMaterialImpl
>       LONG  ref;
>
>       /* IDirect3DMaterial2 fields */
> -    IDirectDrawImpl               *ddraw;
> +    struct ddraw *ddraw;
>       IDirect3DDeviceImpl           *active_device;
>
>       D3DMATERIAL mat;
> @@ -450,7 +449,7 @@ struct IDirect3DMaterialImpl
>
>   /* Helper functions */
>   void material_activate(IDirect3DMaterialImpl* This) DECLSPEC_HIDDEN;
> -IDirect3DMaterialImpl *d3d_material_create(IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
> +IDirect3DMaterialImpl *d3d_material_create(struct ddraw *ddraw) DECLSPEC_HIDDEN;
>
>   /*****************************************************************************
>    * IDirect3DViewport - Wraps to D3D7
> @@ -461,7 +460,7 @@ struct IDirect3DViewportImpl
>       LONG ref;
>
>       /* IDirect3DViewport fields */
> -    IDirectDrawImpl           *ddraw;
> +    struct ddraw *ddraw;
>
>       /* If this viewport is active for one device, put the device here */
>       IDirect3DDeviceImpl       *active_device;
> @@ -490,7 +489,7 @@ IDirect3DViewportImpl *unsafe_impl_from_IDirect3DViewport(IDirect3DViewport *ifa
>
>   /* Helper functions */
>   void viewport_activate(IDirect3DViewportImpl* This, BOOL ignore_lights) DECLSPEC_HIDDEN;
> -void d3d_viewport_init(IDirect3DViewportImpl *viewport, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
> +void d3d_viewport_init(IDirect3DViewportImpl *viewport, struct ddraw *ddraw) DECLSPEC_HIDDEN;
>
>   /*****************************************************************************
>    * IDirect3DExecuteBuffer - Wraps to D3D7
> @@ -500,7 +499,7 @@ struct IDirect3DExecuteBufferImpl
>       IDirect3DExecuteBuffer IDirect3DExecuteBuffer_iface;
>       LONG ref;
>       /* IDirect3DExecuteBuffer fields */
> -    IDirectDrawImpl      *ddraw;
> +    struct ddraw *ddraw;
>       IDirect3DDeviceImpl  *d3ddev;
>
>       D3DEXECUTEBUFFERDESC desc;
> @@ -537,14 +536,14 @@ struct IDirect3DVertexBufferImpl
>       /*** WineD3D and ddraw links ***/
>       struct wined3d_buffer *wineD3DVertexBuffer;
>       struct wined3d_vertex_declaration *wineD3DVertexDeclaration;
> -    IDirectDrawImpl *ddraw;
> +    struct ddraw *ddraw;
>
>       /*** Storage for D3D7 specific things ***/
>       DWORD                Caps;
>       DWORD                fvf;
>   };
>
> -HRESULT d3d_vertex_buffer_create(IDirect3DVertexBufferImpl **vertex_buf, IDirectDrawImpl *ddraw,
> +HRESULT d3d_vertex_buffer_create(IDirect3DVertexBufferImpl **vertex_buf, struct ddraw *ddraw,
>           D3DVERTEXBUFFERDESC *desc) DECLSPEC_HIDDEN;
>   IDirect3DVertexBufferImpl *unsafe_impl_from_IDirect3DVertexBuffer(IDirect3DVertexBuffer *iface) DECLSPEC_HIDDEN;
>   IDirect3DVertexBufferImpl *unsafe_impl_from_IDirect3DVertexBuffer7(IDirect3DVertexBuffer7 *iface) DECLSPEC_HIDDEN;
> diff --git a/dlls/ddraw/device.c b/dlls/ddraw/device.c
> index 72c3801e..c044d53 100644
> --- a/dlls/ddraw/device.c
> +++ b/dlls/ddraw/device.c
> @@ -7019,7 +7019,7 @@ enum wined3d_depth_buffer_type IDirect3DDeviceImpl_UpdateDepthStencil(IDirect3DD
>       return WINED3D_ZB_TRUE;
>   }
>
> -HRESULT d3d_device_init(IDirect3DDeviceImpl *device, IDirectDrawImpl *ddraw, IDirectDrawSurfaceImpl *target)
> +HRESULT d3d_device_init(IDirect3DDeviceImpl *device, struct ddraw *ddraw, IDirectDrawSurfaceImpl *target)
>   {
>       static const D3DMATRIX ident =
>       {
> diff --git a/dlls/ddraw/light.c b/dlls/ddraw/light.c
> index 172ac23..4eeebd4 100644
> --- a/dlls/ddraw/light.c
> +++ b/dlls/ddraw/light.c
> @@ -276,7 +276,7 @@ static const struct IDirect3DLightVtbl d3d_light_vtbl =
>       IDirect3DLightImpl_GetLight
>   };
>
> -void d3d_light_init(IDirect3DLightImpl *light, IDirectDrawImpl *ddraw)
> +void d3d_light_init(IDirect3DLightImpl *light, struct ddraw *ddraw)
>   {
>       light->IDirect3DLight_iface.lpVtbl =&d3d_light_vtbl;
>       light->ref = 1;
> diff --git a/dlls/ddraw/main.c b/dlls/ddraw/main.c
> index b1456d8..3c8c555 100644
> --- a/dlls/ddraw/main.c
> +++ b/dlls/ddraw/main.c
> @@ -187,7 +187,7 @@ DDRAW_Create(const GUID *guid,
>                REFIID iid)
>   {
>       enum wined3d_device_type device_type;
> -    IDirectDrawImpl *This;
> +    struct ddraw *ddraw;
>       HRESULT hr;
>
>       TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
> @@ -220,25 +220,27 @@ DDRAW_Create(const GUID *guid,
>           return CLASS_E_NOAGGREGATION;
>
>       /* DirectDraw creation comes here */
> -    This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectDrawImpl));
> -    if(!This)
> +    ddraw = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ddraw));
> +    if (!ddraw)
>       {
>           ERR("Out of memory when creating DirectDraw\n");
>           return E_OUTOFMEMORY;
>       }
>
> -    hr = ddraw_init(This, device_type);
> +    hr = ddraw_init(ddraw, device_type);
>       if (FAILED(hr))
>       {
>           WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
> -        HeapFree(GetProcessHeap(), 0, This);
> +        HeapFree(GetProcessHeap(), 0, ddraw);
>           return hr;
>       }
>
> -    hr = IDirectDraw7_QueryInterface(&This->IDirectDraw7_iface, iid, DD);
> -    IDirectDraw7_Release(&This->IDirectDraw7_iface);
> -    if (SUCCEEDED(hr)) list_add_head(&global_ddraw_list,&This->ddraw_list_entry);
> -    else WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), This);
> +    hr = IDirectDraw7_QueryInterface(&ddraw->IDirectDraw7_iface, iid, DD);
> +    IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
> +    if (SUCCEEDED(hr))
> +        list_add_head(&global_ddraw_list,&ddraw->ddraw_list_entry);
> +    else
> +        WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), ddraw);
>
>       return hr;
>   }
> @@ -928,10 +930,10 @@ DllMain(HINSTANCE hInstDLL,
>               /* We remove elements from this loop */
>               LIST_FOR_EACH_SAFE(entry, entry2,&global_ddraw_list)
>               {
> +                struct ddraw *ddraw = LIST_ENTRY(entry, struct ddraw, ddraw_list_entry);
>                   HRESULT hr;
>                   DDSURFACEDESC2 desc;
>                   int i;
> -                IDirectDrawImpl *ddraw = LIST_ENTRY(entry, IDirectDrawImpl, ddraw_list_entry);
>
>                   WARN("DDraw %p has a refcount of %d\n", ddraw, ddraw->ref7 + ddraw->ref4 + ddraw->ref3 + ddraw->ref2 + ddraw->ref1);
>
> diff --git a/dlls/ddraw/material.c b/dlls/ddraw/material.c
> index 7b3b702..24b932f 100644
> --- a/dlls/ddraw/material.c
> +++ b/dlls/ddraw/material.c
> @@ -506,7 +506,7 @@ static const struct IDirect3DMaterialVtbl d3d_material1_vtbl =
>       IDirect3DMaterialImpl_Unreserve
>   };
>
> -IDirect3DMaterialImpl *d3d_material_create(IDirectDrawImpl *ddraw)
> +IDirect3DMaterialImpl *d3d_material_create(struct ddraw *ddraw)
>   {
>       IDirect3DMaterialImpl *material;
>
> diff --git a/dlls/ddraw/palette.c b/dlls/ddraw/palette.c
> index cff59a6..1d66db3 100644
> --- a/dlls/ddraw/palette.c
> +++ b/dlls/ddraw/palette.c
> @@ -269,7 +269,7 @@ IDirectDrawPaletteImpl *unsafe_impl_from_IDirectDrawPalette(IDirectDrawPalette *
>   }
>
>   HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
> -        IDirectDrawImpl *ddraw, DWORD flags, PALETTEENTRY *entries)
> +        struct ddraw *ddraw, DWORD flags, PALETTEENTRY *entries)
>   {
>       HRESULT hr;
>
> diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
> index 10643f5..0a7bf63 100644
> --- a/dlls/ddraw/surface.c
> +++ b/dlls/ddraw/surface.c
> @@ -5503,7 +5503,7 @@ HRESULT ddraw_surface_create_texture(IDirectDrawSurfaceImpl *surface)
>                   levels, 0, format, pool, surface,&ddraw_texture_wined3d_parent_ops,&surface->wined3d_texture);
>   }
>
> -HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddraw,
> +HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, struct ddraw *ddraw,
>           DDSURFACEDESC2 *desc, UINT mip_level, UINT version)
>   {
>       enum wined3d_pool pool = WINED3D_POOL_DEFAULT;
> diff --git a/dlls/ddraw/vertexbuffer.c b/dlls/ddraw/vertexbuffer.c
> index fe39e01..d03d249 100644
> --- a/dlls/ddraw/vertexbuffer.c
> +++ b/dlls/ddraw/vertexbuffer.c
> @@ -539,7 +539,7 @@ static const struct IDirect3DVertexBufferVtbl d3d_vertex_buffer1_vtbl =
>       IDirect3DVertexBufferImpl_1_Optimize
>   };
>
> -HRESULT d3d_vertex_buffer_create(IDirect3DVertexBufferImpl **vertex_buf, IDirectDrawImpl *ddraw,
> +HRESULT d3d_vertex_buffer_create(IDirect3DVertexBufferImpl **vertex_buf, struct ddraw *ddraw,
>           D3DVERTEXBUFFERDESC *desc)
>   {
>       IDirect3DVertexBufferImpl *buffer;
> diff --git a/dlls/ddraw/viewport.c b/dlls/ddraw/viewport.c
> index 1523ac6..8980378 100644
> --- a/dlls/ddraw/viewport.c
> +++ b/dlls/ddraw/viewport.c
> @@ -1191,7 +1191,7 @@ IDirect3DViewportImpl *unsafe_impl_from_IDirect3DViewport(IDirect3DViewport *ifa
>       return CONTAINING_RECORD(iface, IDirect3DViewportImpl, IDirect3DViewport3_iface);
>   }
>
> -void d3d_viewport_init(IDirect3DViewportImpl *viewport, IDirectDrawImpl *ddraw)
> +void d3d_viewport_init(IDirect3DViewportImpl *viewport, struct ddraw *ddraw)
>   {
>       viewport->IDirect3DViewport3_iface.lpVtbl =&d3d_viewport_vtbl;
>       viewport->ref = 1;




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