ddraw: Get rid of the unused LoadWineD3D() declaration.
[wine/wine-gecko.git] / dlls / ddraw / ddraw_private.h
blobaa6b2d57d35d1437575f241c821ef5a368e768d2
1 /*
2 * Copyright 2006 Stefan Dösinger
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.
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.
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
19 #ifndef __WINE_DLLS_DDRAW_DDRAW_PRIVATE_H
20 #define __WINE_DLLS_DDRAW_DDRAW_PRIVATE_H
22 #include <assert.h>
23 #define COBJMACROS
24 #define NONAMELESSSTRUCT
25 #define NONAMELESSUNION
26 #include "wine/debug.h"
28 #include "winbase.h"
29 #include "wingdi.h"
30 #include "winuser.h"
32 #include "d3d.h"
33 #include "ddraw.h"
34 #ifdef DDRAW_INIT_GUID
35 #include "initguid.h"
36 #endif
37 #include "wine/list.h"
38 #include "wine/wined3d.h"
40 extern const struct wined3d_parent_ops ddraw_null_wined3d_parent_ops DECLSPEC_HIDDEN;
42 /* Typdef the interfaces */
43 typedef struct IDirectDrawImpl IDirectDrawImpl;
44 typedef struct IDirectDrawSurfaceImpl IDirectDrawSurfaceImpl;
45 typedef struct IDirectDrawClipperImpl IDirectDrawClipperImpl;
46 typedef struct IDirectDrawPaletteImpl IDirectDrawPaletteImpl;
47 typedef struct IDirect3DDeviceImpl IDirect3DDeviceImpl;
48 typedef struct IDirect3DLightImpl IDirect3DLightImpl;
49 typedef struct IDirect3DViewportImpl IDirect3DViewportImpl;
50 typedef struct IDirect3DMaterialImpl IDirect3DMaterialImpl;
51 typedef struct IDirect3DExecuteBufferImpl IDirect3DExecuteBufferImpl;
52 typedef struct IDirect3DVertexBufferImpl IDirect3DVertexBufferImpl;
54 /* Callbacks for implicit object destruction */
55 extern ULONG WINAPI D3D7CB_DestroySwapChain(IWineD3DSwapChain *pSwapChain) DECLSPEC_HIDDEN;
57 /* Global critical section */
58 extern CRITICAL_SECTION ddraw_cs DECLSPEC_HIDDEN;
60 extern DWORD force_refresh_rate DECLSPEC_HIDDEN;
62 /*****************************************************************************
63 * IDirectDraw implementation structure
64 *****************************************************************************/
65 struct FvfToDecl
67 DWORD fvf;
68 struct wined3d_vertex_declaration *decl;
71 struct IDirectDrawImpl
73 /* Interfaces */
74 IDirectDraw7 IDirectDraw7_iface;
75 IDirectDraw4 IDirectDraw4_iface;
76 IDirectDraw3 IDirectDraw3_iface;
77 IDirectDraw2 IDirectDraw2_iface;
78 IDirectDraw IDirectDraw_iface;
79 IDirect3D7 IDirect3D7_iface;
80 IDirect3D3 IDirect3D3_iface;
81 IDirect3D2 IDirect3D2_iface;
82 IDirect3D IDirect3D_iface;
83 const IWineD3DDeviceParentVtbl *device_parent_vtbl;
85 /* See comment in IDirectDraw::AddRef */
86 LONG ref7, ref4, ref2, ref3, ref1, numIfaces;
88 /* WineD3D linkage */
89 struct wined3d *wineD3D;
90 IWineD3DDevice *wineD3DDevice;
91 BOOL d3d_initialized;
93 /* Misc ddraw fields */
94 UINT total_vidmem;
95 DWORD cur_scanline;
96 BOOL fake_vblank;
97 BOOL initialized;
99 /* DirectDraw things, which are not handled by WineD3D */
100 DWORD cooperative_level;
102 DWORD orig_width, orig_height;
103 DWORD orig_bpp;
105 /* D3D things */
106 IDirectDrawSurfaceImpl *d3d_target;
107 HWND d3d_window;
108 IDirect3DDeviceImpl *d3ddevice;
109 int d3dversion;
111 /* Various HWNDs */
112 HWND focuswindow;
113 HWND devicewindow;
114 HWND dest_window;
116 /* The surface type to request */
117 WINED3DSURFTYPE ImplType;
119 /* Helpers for surface creation */
120 IDirectDrawSurfaceImpl *tex_root;
121 BOOL depthstencil;
123 /* For the dll unload cleanup code */
124 struct list ddraw_list_entry;
125 /* The surface list - can't relay this to WineD3D
126 * because of IParent
128 struct list surface_list;
129 LONG surfaces;
131 /* FVF management */
132 struct FvfToDecl *decls;
133 UINT numConvertedDecls, declArraySize;
136 #define DDRAW_WINDOW_CLASS_NAME "ddraw_wc"
138 HRESULT ddraw_init(IDirectDrawImpl *ddraw, WINED3DDEVTYPE device_type) DECLSPEC_HIDDEN;
140 /* Helper structures */
141 typedef struct EnumDisplayModesCBS
143 void *context;
144 LPDDENUMMODESCALLBACK2 callback;
145 } EnumDisplayModesCBS;
147 typedef struct EnumSurfacesCBS
149 void *context;
150 LPDDENUMSURFACESCALLBACK7 callback;
151 LPDDSURFACEDESC2 pDDSD;
152 DWORD Flags;
153 } EnumSurfacesCBS;
155 /* Utility functions */
156 void DDRAW_Convert_DDSCAPS_1_To_2(const DDSCAPS *pIn, DDSCAPS2 *pOut) DECLSPEC_HIDDEN;
157 void DDRAW_Convert_DDDEVICEIDENTIFIER_2_To_1(const DDDEVICEIDENTIFIER2 *pIn, DDDEVICEIDENTIFIER *pOut) DECLSPEC_HIDDEN;
158 HRESULT WINAPI ddraw_recreate_surfaces_cb(IDirectDrawSurface7 *surf,
159 DDSURFACEDESC2 *desc, void *Context) DECLSPEC_HIDDEN;
160 struct wined3d_vertex_declaration *ddraw_find_decl(IDirectDrawImpl *This, DWORD fvf) DECLSPEC_HIDDEN;
162 /* The default surface type */
163 extern WINED3DSURFTYPE DefaultSurfaceType DECLSPEC_HIDDEN;
165 /*****************************************************************************
166 * IDirectDrawSurface implementation structure
167 *****************************************************************************/
169 struct IDirectDrawSurfaceImpl
171 /* IUnknown fields */
172 const IDirectDrawSurface7Vtbl *lpVtbl;
173 const IDirectDrawSurface3Vtbl *IDirectDrawSurface3_vtbl;
174 const IDirectDrawGammaControlVtbl *IDirectDrawGammaControl_vtbl;
175 const IDirect3DTexture2Vtbl *IDirect3DTexture2_vtbl;
176 const IDirect3DTextureVtbl *IDirect3DTexture_vtbl;
178 LONG ref;
179 IUnknown *ifaceToRelease;
181 int version;
183 /* Connections to other Objects */
184 IDirectDrawImpl *ddraw;
185 IWineD3DSurface *WineD3DSurface;
186 struct wined3d_texture *wined3d_texture;
187 IWineD3DSwapChain *wineD3DSwapChain;
189 /* This implementation handles attaching surfaces to other surfaces */
190 IDirectDrawSurfaceImpl *next_attached;
191 IDirectDrawSurfaceImpl *first_attached;
193 /* Complex surfaces are organized in a tree, although the tree is degenerated to a list in most cases.
194 * In mipmap and primary surfaces each level has only one attachment, which is the next surface level.
195 * Only the cube texture root has 6 surfaces attached, which then have a normal mipmap chain attached
196 * to them. So hardcode the array to 6, a dynamic array or a list would be an overkill.
198 #define MAX_COMPLEX_ATTACHED 6
199 IDirectDrawSurfaceImpl *complex_array[MAX_COMPLEX_ATTACHED];
200 /* You can't traverse the tree upwards. Only a flag for Surface::Release because its needed there,
201 * but no pointer to prevent temptations to traverse it in the wrong direction.
203 BOOL is_complex_root;
205 /* Surface description, for GetAttachedSurface */
206 DDSURFACEDESC2 surface_desc;
208 /* Misc things */
209 DWORD uniqueness_value;
210 UINT mipmap_level;
211 WINED3DSURFTYPE ImplType;
213 /* For D3DDevice creation */
214 BOOL isRenderTarget;
216 /* Clipper objects */
217 IDirectDrawClipperImpl *clipper;
219 /* For the ddraw surface list */
220 struct list surface_list_entry;
222 DWORD Handle;
225 void ddraw_surface_destroy(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
226 HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddraw,
227 DDSURFACEDESC2 *desc, UINT mip_level, WINED3DSURFTYPE surface_type) DECLSPEC_HIDDEN;
229 static inline IDirectDrawSurfaceImpl *surface_from_texture1(IDirect3DTexture *iface)
231 return (IDirectDrawSurfaceImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirect3DTexture_vtbl));
234 static inline IDirectDrawSurfaceImpl *surface_from_texture2(IDirect3DTexture2 *iface)
236 return (IDirectDrawSurfaceImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirect3DTexture2_vtbl));
239 static inline IDirectDrawSurfaceImpl *surface_from_surface3(IDirectDrawSurface3 *iface)
241 return (IDirectDrawSurfaceImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirectDrawSurface3_vtbl));
244 /* Get the number of bytes per pixel for a given surface */
245 #define PFGET_BPP(pf) (pf.dwFlags&DDPF_PALETTEINDEXED8?1:((pf.dwRGBBitCount+7)/8))
246 #define GET_BPP(desc) PFGET_BPP(desc.ddpfPixelFormat)
248 #define DDRAW_INVALID_HANDLE ~0U
250 enum ddraw_handle_type
252 DDRAW_HANDLE_FREE,
253 DDRAW_HANDLE_MATERIAL,
254 DDRAW_HANDLE_MATRIX,
255 DDRAW_HANDLE_STATEBLOCK,
256 DDRAW_HANDLE_SURFACE,
259 struct ddraw_handle_entry
261 void *object;
262 enum ddraw_handle_type type;
265 struct ddraw_handle_table
267 struct ddraw_handle_entry *entries;
268 struct ddraw_handle_entry *free_entries;
269 UINT table_size;
270 UINT entry_count;
273 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size) DECLSPEC_HIDDEN;
274 void ddraw_handle_table_destroy(struct ddraw_handle_table *t) DECLSPEC_HIDDEN;
275 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
276 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
277 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
279 struct IDirect3DDeviceImpl
281 /* IUnknown */
282 const IDirect3DDevice7Vtbl *lpVtbl;
283 const IDirect3DDevice3Vtbl *IDirect3DDevice3_vtbl;
284 const IDirect3DDevice2Vtbl *IDirect3DDevice2_vtbl;
285 const IDirect3DDeviceVtbl *IDirect3DDevice_vtbl;
286 LONG ref;
288 /* Other object connections */
289 IWineD3DDevice *wineD3DDevice;
290 IDirectDrawImpl *ddraw;
291 struct wined3d_buffer *indexbuffer;
292 IDirectDrawSurfaceImpl *target;
294 /* Viewport management */
295 IDirect3DViewportImpl *viewport_list;
296 IDirect3DViewportImpl *current_viewport;
297 D3DVIEWPORT7 active_viewport;
299 /* Required to keep track which of two available texture blending modes in d3ddevice3 is used */
300 BOOL legacyTextureBlending;
302 /* Light state */
303 DWORD material;
305 /* Rendering functions to wrap D3D(1-3) to D3D7 */
306 D3DPRIMITIVETYPE primitive_type;
307 DWORD vertex_type;
308 DWORD render_flags;
309 DWORD nb_vertices;
310 LPBYTE vertex_buffer;
311 DWORD vertex_size;
312 DWORD buffer_size;
314 /* Handle management */
315 struct ddraw_handle_table handle_table;
316 D3DMATRIXHANDLE world, proj, view;
319 HRESULT d3d_device_init(IDirect3DDeviceImpl *device, IDirectDrawImpl *ddraw,
320 IDirectDrawSurfaceImpl *target) DECLSPEC_HIDDEN;
322 /* The IID */
323 extern const GUID IID_D3DDEVICE_WineD3D DECLSPEC_HIDDEN;
325 /* Helper functions */
326 HRESULT IDirect3DImpl_GetCaps(const struct wined3d *wined3d,
327 D3DDEVICEDESC *Desc123, D3DDEVICEDESC7 *Desc7) DECLSPEC_HIDDEN;
328 WINED3DZBUFFERTYPE IDirect3DDeviceImpl_UpdateDepthStencil(IDirect3DDeviceImpl *This) DECLSPEC_HIDDEN;
330 static inline IDirect3DDeviceImpl *device_from_device1(IDirect3DDevice *iface)
332 return (IDirect3DDeviceImpl *)((char*)iface - FIELD_OFFSET(IDirect3DDeviceImpl, IDirect3DDevice_vtbl));
335 static inline IDirect3DDeviceImpl *device_from_device2(IDirect3DDevice2 *iface)
337 return (IDirect3DDeviceImpl *)((char*)iface - FIELD_OFFSET(IDirect3DDeviceImpl, IDirect3DDevice2_vtbl));
340 static inline IDirect3DDeviceImpl *device_from_device3(IDirect3DDevice3 *iface)
342 return (IDirect3DDeviceImpl *)((char*)iface - FIELD_OFFSET(IDirect3DDeviceImpl, IDirect3DDevice3_vtbl));
345 /* Structures */
346 struct EnumTextureFormatsCBS
348 LPD3DENUMTEXTUREFORMATSCALLBACK cbv2;
349 LPD3DENUMPIXELFORMATSCALLBACK cbv7;
350 void *Context;
353 /* Structure for EnumZBufferFormats */
354 struct EnumZBufferFormatsData
356 LPD3DENUMPIXELFORMATSCALLBACK Callback;
357 void *Context;
360 /*****************************************************************************
361 * IDirectDrawClipper implementation structure
362 *****************************************************************************/
363 struct IDirectDrawClipperImpl
365 /* IUnknown fields */
366 const IDirectDrawClipperVtbl *lpVtbl;
367 LONG ref;
369 struct wined3d_clipper *wineD3DClipper;
370 BOOL initialized;
373 HRESULT ddraw_clipper_init(IDirectDrawClipperImpl *clipper) DECLSPEC_HIDDEN;
375 /*****************************************************************************
376 * IDirectDrawPalette implementation structure
377 *****************************************************************************/
378 struct IDirectDrawPaletteImpl
380 /* IUnknown fields */
381 const IDirectDrawPaletteVtbl *lpVtbl;
382 LONG ref;
384 struct wined3d_palette *wineD3DPalette;
386 /* IDirectDrawPalette fields */
387 IUnknown *ifaceToRelease;
390 HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
391 IDirectDrawImpl *ddraw, DWORD flags, PALETTEENTRY *entries) DECLSPEC_HIDDEN;
393 /* Helper structures */
394 struct object_creation_info
396 const CLSID *clsid;
397 HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID riid,
398 void **ppObj);
401 /******************************************************************************
402 * IDirect3DLight implementation structure - Wraps to D3D7
403 ******************************************************************************/
404 struct IDirect3DLightImpl
406 const IDirect3DLightVtbl *lpVtbl;
407 LONG ref;
409 /* IDirect3DLight fields */
410 IDirectDrawImpl *ddraw;
412 /* If this light is active for one viewport, put the viewport here */
413 IDirect3DViewportImpl *active_viewport;
415 D3DLIGHT2 light;
416 D3DLIGHT7 light7;
418 DWORD dwLightIndex;
420 /* Chained list used for adding / removing from viewports */
421 IDirect3DLightImpl *next;
424 /* Helper functions */
425 void light_activate(IDirect3DLightImpl *light) DECLSPEC_HIDDEN;
426 void light_deactivate(IDirect3DLightImpl *light) DECLSPEC_HIDDEN;
427 void d3d_light_init(IDirect3DLightImpl *light, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
429 /******************************************************************************
430 * IDirect3DMaterial implementation structure - Wraps to D3D7
431 ******************************************************************************/
432 struct IDirect3DMaterialImpl
434 const IDirect3DMaterial3Vtbl *lpVtbl;
435 const IDirect3DMaterial2Vtbl *IDirect3DMaterial2_vtbl;
436 const IDirect3DMaterialVtbl *IDirect3DMaterial_vtbl;
437 LONG ref;
439 /* IDirect3DMaterial2 fields */
440 IDirectDrawImpl *ddraw;
441 IDirect3DDeviceImpl *active_device;
443 D3DMATERIAL mat;
444 DWORD Handle;
447 /* Helper functions */
448 void material_activate(IDirect3DMaterialImpl* This) DECLSPEC_HIDDEN;
449 void d3d_material_init(IDirect3DMaterialImpl *material, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
451 /*****************************************************************************
452 * IDirect3DViewport - Wraps to D3D7
453 *****************************************************************************/
454 struct IDirect3DViewportImpl
456 const IDirect3DViewport3Vtbl *lpVtbl;
457 LONG ref;
459 /* IDirect3DViewport fields */
460 IDirectDrawImpl *ddraw;
462 /* If this viewport is active for one device, put the device here */
463 IDirect3DDeviceImpl *active_device;
465 DWORD num_lights;
466 DWORD map_lights;
468 int use_vp2;
470 union
472 D3DVIEWPORT vp1;
473 D3DVIEWPORT2 vp2;
474 } viewports;
476 /* Field used to chain viewports together */
477 IDirect3DViewportImpl *next;
479 /* Lights list */
480 IDirect3DLightImpl *lights;
482 /* Background material */
483 IDirect3DMaterialImpl *background;
486 /* Helper functions */
487 void viewport_activate(IDirect3DViewportImpl* This, BOOL ignore_lights) DECLSPEC_HIDDEN;
488 void d3d_viewport_init(IDirect3DViewportImpl *viewport, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
490 /*****************************************************************************
491 * IDirect3DExecuteBuffer - Wraps to D3D7
492 *****************************************************************************/
493 struct IDirect3DExecuteBufferImpl
495 /* IUnknown */
496 const IDirect3DExecuteBufferVtbl *lpVtbl;
497 LONG ref;
499 /* IDirect3DExecuteBuffer fields */
500 IDirectDrawImpl *ddraw;
501 IDirect3DDeviceImpl *d3ddev;
503 D3DEXECUTEBUFFERDESC desc;
504 D3DEXECUTEDATA data;
506 /* This buffer will store the transformed vertices */
507 void *vertex_data;
508 WORD *indices;
509 int nb_indices;
511 /* This flags is set to TRUE if we allocated ourselves the
512 * data buffer
514 BOOL need_free;
517 HRESULT d3d_execute_buffer_init(IDirect3DExecuteBufferImpl *execute_buffer,
518 IDirect3DDeviceImpl *device, D3DEXECUTEBUFFERDESC *desc) DECLSPEC_HIDDEN;
520 /* The execute function */
521 void IDirect3DExecuteBufferImpl_Execute(IDirect3DExecuteBufferImpl *This,
522 IDirect3DDeviceImpl *Device, IDirect3DViewportImpl *ViewportImpl) DECLSPEC_HIDDEN;
524 /*****************************************************************************
525 * IDirect3DVertexBuffer
526 *****************************************************************************/
527 struct IDirect3DVertexBufferImpl
529 /*** IUnknown Methods ***/
530 const IDirect3DVertexBuffer7Vtbl *lpVtbl;
531 const IDirect3DVertexBufferVtbl *IDirect3DVertexBuffer_vtbl;
532 LONG ref;
534 /*** WineD3D and ddraw links ***/
535 struct wined3d_buffer *wineD3DVertexBuffer;
536 struct wined3d_vertex_declaration *wineD3DVertexDeclaration;
537 IDirectDrawImpl *ddraw;
539 /*** Storage for D3D7 specific things ***/
540 DWORD Caps;
541 DWORD fvf;
544 HRESULT d3d_vertex_buffer_init(IDirect3DVertexBufferImpl *buffer,
545 IDirectDrawImpl *ddraw, D3DVERTEXBUFFERDESC *desc) DECLSPEC_HIDDEN;
547 static inline IDirect3DVertexBufferImpl *vb_from_vb1(IDirect3DVertexBuffer *iface)
549 return (IDirect3DVertexBufferImpl *)((char*)iface
550 - FIELD_OFFSET(IDirect3DVertexBufferImpl, IDirect3DVertexBuffer_vtbl));
553 /*****************************************************************************
554 * Helper functions from utils.c
555 *****************************************************************************/
557 #define GET_TEXCOUNT_FROM_FVF(d3dvtVertexType) \
558 (((d3dvtVertexType) & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT)
560 #define GET_TEXCOORD_SIZE_FROM_FVF(d3dvtVertexType, tex_num) \
561 (((((d3dvtVertexType) >> (16 + (2 * (tex_num)))) + 1) & 0x03) + 1)
563 void PixelFormat_WineD3DtoDD(DDPIXELFORMAT *DDPixelFormat, enum wined3d_format_id WineD3DFormat) DECLSPEC_HIDDEN;
564 enum wined3d_format_id PixelFormat_DD2WineD3D(const DDPIXELFORMAT *DDPixelFormat) DECLSPEC_HIDDEN;
565 void DDRAW_dump_surface_desc(const DDSURFACEDESC2 *lpddsd) DECLSPEC_HIDDEN;
566 void dump_D3DMATRIX(const D3DMATRIX *mat) DECLSPEC_HIDDEN;
567 void DDRAW_dump_DDCAPS(const DDCAPS *lpcaps) DECLSPEC_HIDDEN;
568 DWORD get_flexible_vertex_size(DWORD d3dvtVertexType) DECLSPEC_HIDDEN;
569 void DDRAW_dump_DDSCAPS2(const DDSCAPS2 *in) DECLSPEC_HIDDEN;
570 void DDRAW_dump_cooperativelevel(DWORD cooplevel) DECLSPEC_HIDDEN;
572 /* This only needs to be here as long the processvertices functionality of
573 * IDirect3DExecuteBuffer isn't in WineD3D */
574 void multiply_matrix(LPD3DMATRIX dest, const D3DMATRIX *src1, const D3DMATRIX *src2) DECLSPEC_HIDDEN;
576 /* Used for generic dumping */
577 typedef struct
579 DWORD val;
580 const char* name;
581 } flag_info;
583 #define FE(x) { x, #x }
585 typedef struct
587 DWORD val;
588 const char* name;
589 void (*func)(const void *);
590 ptrdiff_t offset;
591 } member_info;
593 /* Structure copy */
594 #define ME(x,f,e) { x, #x, (void (*)(const void *))(f), offsetof(STRUCT, e) }
596 #define DD_STRUCT_COPY_BYSIZE(to,from) \
597 do { \
598 DWORD __size = (to)->dwSize; \
599 DWORD __copysize = __size; \
600 DWORD __resetsize = __size; \
601 assert(to != from); \
602 if (__resetsize > sizeof(*to)) \
603 __resetsize = sizeof(*to); \
604 memset(to,0,__resetsize); \
605 if ((from)->dwSize < __size) \
606 __copysize = (from)->dwSize; \
607 memcpy(to,from,__copysize); \
608 (to)->dwSize = __size;/*restore size*/ \
609 } while (0)
612 #endif
614 HRESULT hr_ddraw_from_wined3d(HRESULT hr) DECLSPEC_HIDDEN;