msi: Make the version information of DllGetVersion same as in version resource.
[wine] / dlls / ddraw / ddraw_private.h
1 /*
2  * Copyright 2006 Stefan Dösinger
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17  */
18
19 #ifndef __WINE_DLLS_DDRAW_DDRAW_PRIVATE_H
20 #define __WINE_DLLS_DDRAW_DDRAW_PRIVATE_H
21
22 /* MAY NOT CONTAIN X11 or DGA specific includes/defines/structs! */
23
24 #include <stdarg.h>
25 #include <stdio.h>
26
27 #include "windef.h"
28 #include "winbase.h"
29 #include "wtypes.h"
30 #include "wingdi.h"
31 #include "winuser.h"
32 #include "ddraw.h"
33 #include "ddrawi.h"
34 #include "d3d.h"
35
36 #include "ddcomimpl.h"
37
38 #include "wine/wined3d_interface.h"
39
40 /*****************************************************************************
41  * IParent - a helper interface
42  *****************************************************************************/
43 DEFINE_GUID(IID_IParent, 0xc20e4c88, 0x74e7, 0x4940, 0xba, 0x9f, 0x2e, 0x32, 0x3f, 0x9d, 0xc9, 0x81);
44 typedef struct IParent *LPPARENT, *PPARENT;
45
46 #define INTERFACE IParent
47 DECLARE_INTERFACE_(IParent,IUnknown)
48 {
49     /*** IUnknown methods ***/
50     STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
51     STDMETHOD_(ULONG,AddRef)(THIS) PURE;
52     STDMETHOD_(ULONG,Release)(THIS) PURE;
53 };
54 #undef INTERFACE
55
56 #if !defined(__cplusplus) || defined(CINTERFACE)
57 /*** IUnknown methods ***/
58 #define IParent_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
59 #define IParent_AddRef(p)             (p)->lpVtbl->AddRef(p)
60 #define IParent_Release(p)            (p)->lpVtbl->Release(p)
61 #endif
62
63
64 /* Typdef the interfaces */
65 typedef struct IDirectDrawImpl            IDirectDrawImpl;
66 typedef struct IDirectDrawSurfaceImpl     IDirectDrawSurfaceImpl;
67 typedef struct IDirectDrawClipperImpl     IDirectDrawClipperImpl;
68 typedef struct IDirectDrawPaletteImpl     IDirectDrawPaletteImpl;
69 typedef struct IDirect3DDeviceImpl        IDirect3DDeviceImpl;
70 typedef struct IDirect3DLightImpl         IDirect3DLightImpl;
71 typedef struct IDirect3DViewportImpl      IDirect3DViewportImpl;
72 typedef struct IDirect3DMaterialImpl      IDirect3DMaterialImpl;
73 typedef struct IDirect3DExecuteBufferImpl IDirect3DExecuteBufferImpl;
74 typedef struct IDirect3DVertexBufferImpl  IDirect3DVertexBufferImpl;
75 typedef struct IParentImpl                IParentImpl;
76
77 /*****************************************************************************
78  * IDirectDraw implementation structure
79  *****************************************************************************/
80
81 struct IDirectDrawImpl
82 {
83     /* IUnknown fields */
84     ICOM_VFIELD_MULTI(IDirectDraw7);
85     ICOM_VFIELD_MULTI(IDirectDraw4);
86     ICOM_VFIELD_MULTI(IDirectDraw2);
87     ICOM_VFIELD_MULTI(IDirectDraw);
88     ICOM_VFIELD_MULTI(IDirect3D7);
89     ICOM_VFIELD_MULTI(IDirect3D3);
90     ICOM_VFIELD_MULTI(IDirect3D2);
91     ICOM_VFIELD_MULTI(IDirect3D);
92
93     /* See comment in IDirectDraw::AddRef */
94     LONG                    ref7, ref4, ref2, ref1, numIfaces;
95
96     /* WineD3D linkage */
97     IWineD3D                *wineD3D;
98     IWineD3DDevice          *wineD3DDevice;
99     IDirectDrawSurfaceImpl  *DepthStencilBuffer;
100     BOOL                    d3d_initialized;
101
102     /* Misc ddraw fields */
103     UINT                    total_vidmem;
104     DWORD                   cur_scanline;
105     BOOL                    fake_vblank;
106     BOOL                    initialized;
107
108     /* DirectDraw things, which are not handled by WineD3D */
109     DWORD                   cooperative_level;
110
111     DWORD                   orig_width, orig_height;
112     DWORD                   orig_bpp;
113
114     DDCAPS                  caps;
115
116     LONG                    style;
117     LONG                    exStyle;
118
119     /* D3D things */
120     IDirectDrawSurfaceImpl  *d3d_target;
121     HWND                    d3d_window;
122     IDirect3DDeviceImpl     *d3ddevice;
123     int                     d3dversion;
124
125     /* Various HWNDs */
126     HWND                    focuswindow;
127     HWND                    devicewindow;
128
129     /* The surface type to request */
130     WINED3DSURFTYPE         ImplType;
131
132     /* The surface list - can't relay this to WineD3D
133      * because of IParent
134      */
135     IDirectDrawSurfaceImpl *surface_list;
136
137     /* Our private window class */
138     char classname[32];
139     WNDCLASSA wnd_class;
140
141     /* Helpers for surface creation */
142     IDirectDrawSurfaceImpl *tex_root;
143     BOOL                    depthstencil;
144
145     /* For the dll unload cleanup code */
146     IDirectDrawImpl *next;
147     LONG surfaces;
148 };
149
150 /* Declare the VTables. They can be found ddraw.c */
151 const IDirectDraw7Vtbl IDirectDraw7_Vtbl;
152 const IDirectDraw4Vtbl IDirectDraw4_Vtbl;
153 const IDirectDraw2Vtbl IDirectDraw2_Vtbl;
154 const IDirectDrawVtbl  IDirectDraw1_Vtbl;
155
156 /* Helper structures */
157 typedef struct EnumDisplayModesCBS
158 {
159     void *context;
160     LPDDENUMMODESCALLBACK2 callback;
161 } EnumDisplayModesCBS;
162
163 typedef struct EnumSurfacesCBS
164 {
165     void *context;
166     LPDDENUMSURFACESCALLBACK7 callback;
167     LPDDSURFACEDESC2 pDDSD;
168     DWORD Flags;
169 } EnumSurfacesCBS;
170
171 /* Utility functions */
172 void
173 DDRAW_Convert_DDSCAPS_1_To_2(const DDSCAPS* pIn,
174                              DDSCAPS2* pOut);
175 void
176 DDRAW_Convert_DDDEVICEIDENTIFIER_2_To_1(const DDDEVICEIDENTIFIER2* pIn,
177                                         DDDEVICEIDENTIFIER* pOut);
178 void
179 IDirectDrawImpl_Destroy(IDirectDrawImpl *This);
180
181 HRESULT WINAPI
182 IDirectDrawImpl_RecreateSurfacesCallback(IDirectDrawSurface7 *surf,
183                                          DDSURFACEDESC2 *desc,
184                                          void *Context);
185 /* The cleanup list */
186 extern IDirectDrawImpl *ddraw_list;
187
188 /* The default surface type */
189 extern WINED3DSURFTYPE DefaultSurfaceType;
190
191 /*****************************************************************************
192  * IDirectDrawSurface implementation structure
193  *****************************************************************************/
194
195 struct IDirectDrawSurfaceImpl
196 {
197     /* IUnknown fields */
198     ICOM_VFIELD_MULTI(IDirectDrawSurface7);
199     ICOM_VFIELD_MULTI(IDirectDrawSurface3);
200     ICOM_VFIELD_MULTI(IDirectDrawGammaControl);
201     ICOM_VFIELD_MULTI(IDirect3DTexture2);
202     ICOM_VFIELD_MULTI(IDirect3DTexture);
203
204     LONG                     ref;
205     IUnknown                *ifaceToRelease;
206
207     int                     version;
208
209     /* Connections to other Objects */
210     IDirectDrawImpl         *ddraw;
211     IWineD3DSurface         *WineD3DSurface;
212     IWineD3DTexture         *wineD3DTexture;
213
214     /* This implementation handles attaching surfaces to other surfaces */
215     IDirectDrawSurfaceImpl  *next_attached;
216     IDirectDrawSurfaceImpl  *first_attached;
217     IDirectDrawSurfaceImpl  *next_complex;
218     IDirectDrawSurfaceImpl  *first_complex;
219
220     /* Surface description, for GetAttachedSurface */
221     DDSURFACEDESC2          surface_desc;
222
223     /* Misc things */
224     DWORD                   uniqueness_value;
225     UINT                    mipmap_level;
226     WINED3DSURFTYPE         ImplType;
227
228     /* For D3DDevice creation */
229     BOOL                    isRenderTarget;
230
231     /* Clipper objects */
232     IDirectDrawClipperImpl  *clipper;
233
234     /* For the ddraw surface list */
235     IDirectDrawSurfaceImpl *next;
236     IDirectDrawSurfaceImpl *prev;
237
238     DWORD                   Handle;
239 };
240
241 /* VTable declaration. It's located in surface.c / surface_thunks.c */
242 const IDirectDrawSurface7Vtbl IDirectDrawSurface7_Vtbl;
243 const IDirectDrawSurface3Vtbl IDirectDrawSurface3_Vtbl;
244 const IDirectDrawGammaControlVtbl IDirectDrawGammaControl_Vtbl;
245 const IDirect3DTexture2Vtbl IDirect3DTexture2_Vtbl;
246 const IDirect3DTextureVtbl IDirect3DTexture1_Vtbl;
247
248 /* Get the number of bytes per pixel for a given surface */
249 #define PFGET_BPP(pf) (pf.dwFlags&DDPF_PALETTEINDEXED8?1:((pf.dwRGBBitCount+7)/8))
250 #define GET_BPP(desc) PFGET_BPP(desc.ddpfPixelFormat)
251
252 /*****************************************************************************
253  * IParent Implementation
254  *****************************************************************************/
255 struct IParentImpl
256 {
257     /* IUnknown fields */
258     ICOM_VFIELD_MULTI(IParent);
259     LONG                    ref;
260
261     /* IParentImpl fields */
262     IUnknown      *child;
263
264 };
265
266 const IParentVtbl IParent_Vtbl;
267
268 /*****************************************************************************
269  * IDirect3DDevice implementation
270  *****************************************************************************/
271 typedef enum
272 {
273     DDrawHandle_Unknown       = 0,
274     DDrawHandle_Texture       = 1,
275     DDrawHandle_Material      = 2,
276     DDrawHandle_Matrix        = 3
277 } DDrawHandleTypes;
278
279 struct HandleEntry
280 {
281     void    *ptr;
282     DDrawHandleTypes      type;
283 };
284
285 struct IDirect3DDeviceImpl
286 {
287     /* IUnknown */
288     ICOM_VFIELD_MULTI(IDirect3DDevice7);
289     ICOM_VFIELD_MULTI(IDirect3DDevice3);
290     ICOM_VFIELD_MULTI(IDirect3DDevice2);
291     ICOM_VFIELD_MULTI(IDirect3DDevice);
292     LONG                    ref;
293
294     /* Other object connections */
295     IWineD3DDevice          *wineD3DDevice;
296     IDirectDrawImpl         *ddraw;
297     IWineD3DIndexBuffer     *indexbuffer;
298     IDirectDrawSurfaceImpl  *target;
299     BOOL                    OffScreenTarget;
300
301     /* Viewport management */
302     IDirect3DViewportImpl *viewport_list;
303     IDirect3DViewportImpl *current_viewport;
304     D3DVIEWPORT7 active_viewport;
305
306     /* Light state */
307     DWORD material;
308
309     /* Rendering functions to wrap D3D(1-3) to D3D7 */
310     D3DPRIMITIVETYPE primitive_type;
311     DWORD vertex_type;
312     DWORD render_flags;
313     DWORD nb_vertices;
314     LPBYTE vertex_buffer;
315     DWORD vertex_size;
316     DWORD buffer_size;
317
318     /* Handle management */
319     struct HandleEntry      *Handles;
320     DWORD                    numHandles;
321 };
322
323 /* Vtables in various versions */
324 const IDirect3DDevice7Vtbl IDirect3DDevice7_Vtbl;
325 const IDirect3DDevice3Vtbl IDirect3DDevice3_Vtbl;
326 const IDirect3DDevice2Vtbl IDirect3DDevice2_Vtbl;
327 const IDirect3DDeviceVtbl  IDirect3DDevice1_Vtbl;
328
329 /* The IID */
330 const GUID IID_D3DDEVICE_WineD3D;
331
332 /* Helper functions */
333 HRESULT IDirect3DImpl_GetCaps(IWineD3D *WineD3D, D3DDEVICEDESC *Desc123, D3DDEVICEDESC7 *Desc7);
334 DWORD IDirect3DDeviceImpl_CreateHandle(IDirect3DDeviceImpl *This);
335
336 /* Structures */
337 struct EnumTextureFormatsCBS
338 {
339     LPD3DENUMTEXTUREFORMATSCALLBACK cbv2;
340     LPD3DENUMPIXELFORMATSCALLBACK cbv7;
341     void *Context;
342 };
343
344 /*****************************************************************************
345  * IDirect3D implementation
346  *****************************************************************************/
347
348 /* No implementation structure as this is only another interface to DirectDraw */
349
350 /* the Vtables */
351 const IDirect3DVtbl  IDirect3D1_Vtbl;
352 const IDirect3D2Vtbl IDirect3D2_Vtbl;
353 const IDirect3D3Vtbl IDirect3D3_Vtbl;
354 const IDirect3D7Vtbl IDirect3D7_Vtbl;
355
356 /* Structure for EnumZBufferFormats */
357 struct EnumZBufferFormatsData
358 {
359     LPD3DENUMPIXELFORMATSCALLBACK Callback;
360     void *Context;
361 };
362
363 /*****************************************************************************
364  * IDirectDrawClipper implementation structure
365  *****************************************************************************/
366 struct IDirectDrawClipperImpl
367 {
368     /* IUnknown fields */
369     ICOM_VFIELD_MULTI(IDirectDrawClipper);
370     LONG ref;
371
372     /* IDirectDrawClipper fields */
373     HWND hWnd;
374
375     IDirectDrawImpl* ddraw_owner;
376     struct IDirectDrawClipperImpl* prev_ddraw;
377     struct IDirectDrawClipperImpl* next_ddraw;
378 };
379
380 const IDirectDrawClipperVtbl IDirectDrawClipper_Vtbl;
381
382 /*****************************************************************************
383  * IDirectDrawPalette implementation structure
384  *****************************************************************************/
385 struct IDirectDrawPaletteImpl
386 {
387     /* IUnknown fields */
388     ICOM_VFIELD_MULTI(IDirectDrawPalette);
389     LONG ref;
390
391     /* WineD3D uplink */
392     IWineD3DPalette           *wineD3DPalette;
393
394     /* IDirectDrawPalette fields */
395     IDirectDrawImpl           *ddraw_owner;
396     IUnknown                  *ifaceToRelease;
397 };
398 const IDirectDrawPaletteVtbl IDirectDrawPalette_Vtbl;
399
400 /******************************************************************************
401  * DirectDraw ClassFactory implementation - incomplete
402  ******************************************************************************/
403 typedef struct
404 {
405     ICOM_VFIELD_MULTI(IClassFactory);
406
407     LONG ref;
408     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID iid, LPVOID *ppObj);
409 } IClassFactoryImpl;
410
411 /* Helper structures */
412 struct object_creation_info
413 {
414     const CLSID *clsid;
415     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID riid,
416                                  void **ppObj);
417 };
418
419 /******************************************************************************
420  * IDirect3DLight implementation structure - Wraps to D3D7
421  ******************************************************************************/
422 struct IDirect3DLightImpl
423 {
424     ICOM_VFIELD_MULTI(IDirect3DLight);
425     LONG ref;
426
427     /* IDirect3DLight fields */
428     IDirectDrawImpl           *ddraw;
429
430     /* If this light is active for one viewport, put the viewport here */
431     IDirect3DViewportImpl     *active_viewport;
432
433     D3DLIGHT2 light;
434     D3DLIGHT7 light7;
435
436     DWORD dwLightIndex;
437
438     /* Chained list used for adding / removing from viewports */
439     IDirect3DLightImpl        *next;
440
441     /* Activation function */
442     void                      (*activate)(IDirect3DLightImpl*);
443     void                      (*desactivate)(IDirect3DLightImpl*);
444     void                      (*update)(IDirect3DLightImpl*);
445 };
446
447 /* Vtable */
448 const IDirect3DLightVtbl IDirect3DLight_Vtbl;
449
450 /* Helper functions */
451 void light_update(IDirect3DLightImpl* This);
452 void light_activate(IDirect3DLightImpl* This);
453 void light_desactivate(IDirect3DLightImpl* This);
454
455 /******************************************************************************
456  * IDirect3DMaterial implementation structure - Wraps to D3D7
457  ******************************************************************************/
458 struct IDirect3DMaterialImpl
459 {
460     ICOM_VFIELD_MULTI(IDirect3DMaterial3);
461     ICOM_VFIELD_MULTI(IDirect3DMaterial2);
462     ICOM_VFIELD_MULTI(IDirect3DMaterial);
463     LONG  ref;
464
465     /* IDirect3DMaterial2 fields */
466     IDirectDrawImpl               *ddraw;
467     IDirect3DDeviceImpl           *active_device;
468
469     D3DMATERIAL mat;
470     DWORD Handle;
471
472     void (*activate)(IDirect3DMaterialImpl* this);
473 };
474
475 /* VTables in various versions */
476 const IDirect3DMaterialVtbl IDirect3DMaterial_Vtbl;
477 const IDirect3DMaterial2Vtbl IDirect3DMaterial2_Vtbl;
478 const IDirect3DMaterial3Vtbl IDirect3DMaterial3_Vtbl;
479
480 /* Helper functions */
481 void material_activate(IDirect3DMaterialImpl* This);
482
483 /*****************************************************************************
484  * IDirect3DViewport - Wraps to D3D7
485  *****************************************************************************/
486 struct IDirect3DViewportImpl
487 {
488     ICOM_VFIELD_MULTI(IDirect3DViewport3);
489     LONG ref;
490
491     /* IDirect3DViewport fields */
492     IDirectDrawImpl           *ddraw;
493
494     /* If this viewport is active for one device, put the device here */
495     IDirect3DDeviceImpl       *active_device;
496
497     DWORD                     num_lights;
498     DWORD                     map_lights;
499
500     int                       use_vp2;
501
502     union
503     {
504         D3DVIEWPORT vp1;
505         D3DVIEWPORT2 vp2;
506     } viewports;
507
508     /* Activation function */
509     void                      (*activate)(IDirect3DViewportImpl*);
510
511     /* Field used to chain viewports together */
512     IDirect3DViewportImpl     *next;
513
514     /* Lights list */
515     IDirect3DLightImpl        *lights;
516
517     /* Background material */
518     IDirect3DMaterialImpl     *background;
519 };
520
521 /* Vtable */
522 const IDirect3DViewport3Vtbl IDirect3DViewport3_Vtbl;
523
524 /* Helper functions */
525 void viewport_activate(IDirect3DViewportImpl* This);
526
527 /*****************************************************************************
528  * IDirect3DExecuteBuffer - Wraps to D3D7
529  *****************************************************************************/
530 struct IDirect3DExecuteBufferImpl
531 {
532     /* IUnknown */
533     ICOM_VFIELD_MULTI(IDirect3DExecuteBuffer);
534     LONG                 ref;
535
536     /* IDirect3DExecuteBuffer fields */
537     IDirectDrawImpl      *ddraw;
538     IDirect3DDeviceImpl  *d3ddev;
539
540     D3DEXECUTEBUFFERDESC desc;
541     D3DEXECUTEDATA       data;
542
543     /* This buffer will store the transformed vertices */
544     void                 *vertex_data;
545     WORD                 *indices;
546     int                  nb_indices;
547
548     /* This flags is set to TRUE if we allocated ourselves the
549      * data buffer
550      */
551     BOOL                 need_free;
552 };
553
554 /* The VTable */
555 const IDirect3DExecuteBufferVtbl IDirect3DExecuteBuffer_Vtbl;
556
557 /* The execute function */
558 void
559 IDirect3DExecuteBufferImpl_Execute(IDirect3DExecuteBufferImpl *This,
560                                    IDirect3DDeviceImpl *Device,
561                                    IDirect3DViewportImpl *ViewportImpl);
562
563 /*****************************************************************************
564  * IDirect3DVertexBuffer
565  *****************************************************************************/
566 struct IDirect3DVertexBufferImpl
567 {
568     /*** IUnknown Methods ***/
569     ICOM_VFIELD_MULTI(IDirect3DVertexBuffer7);
570     ICOM_VFIELD_MULTI(IDirect3DVertexBuffer);
571     LONG                 ref;
572
573     /*** WineD3D link ***/
574     IWineD3DVertexBuffer *wineD3DVertexBuffer;
575
576     /*** Storage for D3D7 specific things ***/
577     DWORD                Caps;
578 };
579
580 /* The Vtables */
581 const IDirect3DVertexBuffer7Vtbl IDirect3DVertexBuffer7_Vtbl;
582 const IDirect3DVertexBufferVtbl IDirect3DVertexBuffer1_Vtbl;
583
584 /*****************************************************************************
585  * Helper functions from utils.c
586  *****************************************************************************/
587
588 #define GET_TEXCOUNT_FROM_FVF(d3dvtVertexType) \
589     (((d3dvtVertexType) & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT)
590
591 #define GET_TEXCOORD_SIZE_FROM_FVF(d3dvtVertexType, tex_num) \
592     (((((d3dvtVertexType) >> (16 + (2 * (tex_num)))) + 1) & 0x03) + 1)
593
594 void PixelFormat_WineD3DtoDD(DDPIXELFORMAT *DDPixelFormat, WINED3DFORMAT WineD3DFormat);
595 WINED3DFORMAT PixelFormat_DD2WineD3D(DDPIXELFORMAT *DDPixelFormat);
596 void DDRAW_dump_surface_desc(const DDSURFACEDESC2 *lpddsd);
597 void DDRAW_dump_pixelformat(const DDPIXELFORMAT *PixelFormat);
598 void dump_D3DMATRIX(D3DMATRIX *mat);
599 void DDRAW_dump_DDCAPS(const DDCAPS *lpcaps);
600 DWORD get_flexible_vertex_size(DWORD d3dvtVertexType);
601 void DDRAW_dump_DDSCAPS2(const DDSCAPS2 *in);
602 void DDRAW_dump_cooperativelevel(DWORD cooplevel);
603
604 /* This only needs to be here as long the processvertices functionality of
605  * IDirect3DExecuteBuffer isn't in WineD3D */
606 void multiply_matrix(LPD3DMATRIX dest, LPD3DMATRIX src1, LPD3DMATRIX src2);
607
608 /* Used for generic dumping */
609 typedef struct
610 {
611     DWORD val;
612     const char* name;
613 } flag_info;
614
615 #define FE(x) { x, #x }
616
617 typedef struct
618 {
619     DWORD val;
620     const char* name;
621     void (*func)(const void *);
622     ptrdiff_t offset;
623 } member_info;
624
625 /* Structure copy */
626 #define DDRAW_dump_flags(flags,names,num_names) DDRAW_dump_flags_(flags, names, num_names, 1)
627 #define ME(x,f,e) { x, #x, (void (*)(const void *))(f), offsetof(STRUCT, e) }
628
629 #define DD_STRUCT_COPY_BYSIZE(to,from)                  \
630         do {                                            \
631                 DWORD __size = (to)->dwSize;            \
632                 DWORD __copysize = __size;              \
633                 DWORD __resetsize = __size;             \
634                 assert(to != from);                     \
635                 if (__resetsize > sizeof(*to))          \
636                     __resetsize = sizeof(*to);          \
637                 memset(to,0,__resetsize);               \
638                 if ((from)->dwSize < __size)            \
639                     __copysize = (from)->dwSize;        \
640                 memcpy(to,from,__copysize);             \
641                 (to)->dwSize = __size;/*restore size*/  \
642         } while (0)
643
644
645 #endif
646
647 HRESULT hr_ddraw_from_wined3d(HRESULT hr);