ddraw: Separate IDirectDrawSurface4 vtable.
[wine.git] / dlls / ddraw / ddraw_private.h
blob0dbbb52cb7f7d1cb4aa718e266dabe84c1ee0b1a
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_surface_wined3d_parent_ops DECLSPEC_HIDDEN;
41 extern const struct wined3d_parent_ops ddraw_null_wined3d_parent_ops DECLSPEC_HIDDEN;
43 /* Typdef the interfaces */
44 typedef struct IDirectDrawImpl IDirectDrawImpl;
45 typedef struct IDirectDrawSurfaceImpl IDirectDrawSurfaceImpl;
46 typedef struct IDirectDrawClipperImpl IDirectDrawClipperImpl;
47 typedef struct IDirectDrawPaletteImpl IDirectDrawPaletteImpl;
48 typedef struct IDirect3DDeviceImpl IDirect3DDeviceImpl;
49 typedef struct IDirect3DLightImpl IDirect3DLightImpl;
50 typedef struct IDirect3DViewportImpl IDirect3DViewportImpl;
51 typedef struct IDirect3DMaterialImpl IDirect3DMaterialImpl;
52 typedef struct IDirect3DExecuteBufferImpl IDirect3DExecuteBufferImpl;
53 typedef struct IDirect3DVertexBufferImpl IDirect3DVertexBufferImpl;
55 /* Global critical section */
56 extern CRITICAL_SECTION ddraw_cs DECLSPEC_HIDDEN;
58 extern DWORD force_refresh_rate DECLSPEC_HIDDEN;
60 /*****************************************************************************
61 * IDirectDraw implementation structure
62 *****************************************************************************/
63 struct FvfToDecl
65 DWORD fvf;
66 struct wined3d_vertex_declaration *decl;
69 struct IDirectDrawImpl
71 /* Interfaces */
72 IDirectDraw7 IDirectDraw7_iface;
73 IDirectDraw4 IDirectDraw4_iface;
74 IDirectDraw3 IDirectDraw3_iface;
75 IDirectDraw2 IDirectDraw2_iface;
76 IDirectDraw IDirectDraw_iface;
77 IDirect3D7 IDirect3D7_iface;
78 IDirect3D3 IDirect3D3_iface;
79 IDirect3D2 IDirect3D2_iface;
80 IDirect3D IDirect3D_iface;
81 struct wined3d_device_parent device_parent;
83 /* See comment in IDirectDraw::AddRef */
84 LONG ref7, ref4, ref2, ref3, ref1, numIfaces;
86 /* WineD3D linkage */
87 struct wined3d *wineD3D;
88 struct wined3d_device *wined3d_device;
89 BOOL d3d_initialized;
91 /* Misc ddraw fields */
92 UINT total_vidmem;
93 DWORD cur_scanline;
94 BOOL fake_vblank;
95 BOOL initialized;
97 /* DirectDraw things, which are not handled by WineD3D */
98 DWORD cooperative_level;
100 DWORD orig_width, orig_height;
101 DWORD orig_bpp;
103 /* D3D things */
104 IDirectDrawSurfaceImpl *d3d_target;
105 HWND d3d_window;
106 IDirect3DDeviceImpl *d3ddevice;
107 int d3dversion;
109 /* Various HWNDs */
110 HWND focuswindow;
111 HWND devicewindow;
112 HWND dest_window;
114 /* The surface type to request */
115 WINED3DSURFTYPE ImplType;
117 /* Helpers for surface creation */
118 IDirectDrawSurfaceImpl *tex_root;
119 BOOL depthstencil;
121 /* For the dll unload cleanup code */
122 struct list ddraw_list_entry;
123 /* The surface list - can't relay this to WineD3D
124 * because of IParent
126 struct list surface_list;
127 LONG surfaces;
129 /* FVF management */
130 struct FvfToDecl *decls;
131 UINT numConvertedDecls, declArraySize;
134 #define DDRAW_WINDOW_CLASS_NAME "ddraw_wc"
136 HRESULT ddraw_init(IDirectDrawImpl *ddraw, WINED3DDEVTYPE device_type) DECLSPEC_HIDDEN;
138 /* Utility functions */
139 void DDRAW_Convert_DDSCAPS_1_To_2(const DDSCAPS *pIn, DDSCAPS2 *pOut) DECLSPEC_HIDDEN;
140 void DDRAW_Convert_DDDEVICEIDENTIFIER_2_To_1(const DDDEVICEIDENTIFIER2 *pIn, DDDEVICEIDENTIFIER *pOut) DECLSPEC_HIDDEN;
141 HRESULT WINAPI ddraw_recreate_surfaces_cb(IDirectDrawSurface7 *surf,
142 DDSURFACEDESC2 *desc, void *Context) DECLSPEC_HIDDEN;
143 struct wined3d_vertex_declaration *ddraw_find_decl(IDirectDrawImpl *This, DWORD fvf) DECLSPEC_HIDDEN;
145 /* The default surface type */
146 extern WINED3DSURFTYPE DefaultSurfaceType DECLSPEC_HIDDEN;
148 /*****************************************************************************
149 * IDirectDrawSurface implementation structure
150 *****************************************************************************/
152 struct IDirectDrawSurfaceImpl
154 /* IUnknown fields */
155 IDirectDrawSurface7 IDirectDrawSurface7_iface;
156 IDirectDrawSurface4 IDirectDrawSurface4_iface;
157 IDirectDrawSurface3 IDirectDrawSurface3_iface;
158 const IDirectDrawGammaControlVtbl *IDirectDrawGammaControl_vtbl;
159 const IDirect3DTexture2Vtbl *IDirect3DTexture2_vtbl;
160 const IDirect3DTextureVtbl *IDirect3DTexture_vtbl;
162 LONG ref;
163 IUnknown *ifaceToRelease;
165 int version;
167 /* Connections to other Objects */
168 IDirectDrawImpl *ddraw;
169 struct wined3d_surface *wined3d_surface;
170 struct wined3d_texture *wined3d_texture;
171 struct wined3d_swapchain *wined3d_swapchain;
173 /* This implementation handles attaching surfaces to other surfaces */
174 IDirectDrawSurfaceImpl *next_attached;
175 IDirectDrawSurfaceImpl *first_attached;
177 /* Complex surfaces are organized in a tree, although the tree is degenerated to a list in most cases.
178 * In mipmap and primary surfaces each level has only one attachment, which is the next surface level.
179 * Only the cube texture root has 6 surfaces attached, which then have a normal mipmap chain attached
180 * to them. So hardcode the array to 6, a dynamic array or a list would be an overkill.
182 #define MAX_COMPLEX_ATTACHED 6
183 IDirectDrawSurfaceImpl *complex_array[MAX_COMPLEX_ATTACHED];
184 /* You can't traverse the tree upwards. Only a flag for Surface::Release because its needed there,
185 * but no pointer to prevent temptations to traverse it in the wrong direction.
187 BOOL is_complex_root;
189 /* Surface description, for GetAttachedSurface */
190 DDSURFACEDESC2 surface_desc;
192 /* Misc things */
193 DWORD uniqueness_value;
194 UINT mipmap_level;
195 WINED3DSURFTYPE ImplType;
197 /* For D3DDevice creation */
198 BOOL isRenderTarget;
200 /* Clipper objects */
201 IDirectDrawClipperImpl *clipper;
203 /* For the ddraw surface list */
204 struct list surface_list_entry;
206 DWORD Handle;
209 HRESULT ddraw_surface_create_texture(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
210 void ddraw_surface_destroy(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
211 HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddraw,
212 DDSURFACEDESC2 *desc, UINT mip_level, WINED3DSURFTYPE surface_type) DECLSPEC_HIDDEN;
214 static inline IDirectDrawSurfaceImpl *surface_from_texture1(IDirect3DTexture *iface)
216 return (IDirectDrawSurfaceImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirect3DTexture_vtbl));
219 static inline IDirectDrawSurfaceImpl *surface_from_texture2(IDirect3DTexture2 *iface)
221 return (IDirectDrawSurfaceImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirect3DTexture2_vtbl));
224 static inline IDirectDrawSurfaceImpl *impl_from_IDirectDrawSurface3(IDirectDrawSurface3 *iface)
226 return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirectDrawSurface3_iface);
229 static inline IDirectDrawSurfaceImpl *impl_from_IDirectDrawSurface4(IDirectDrawSurface4 *iface)
231 return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirectDrawSurface4_iface);
234 static inline IDirectDrawSurfaceImpl *impl_from_IDirectDrawSurface7(IDirectDrawSurface7 *iface)
236 return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirectDrawSurface7_iface);
239 IDirectDrawSurfaceImpl *unsafe_impl_from_IDirectDrawSurface3(IDirectDrawSurface3 *iface) DECLSPEC_HIDDEN;
240 IDirectDrawSurfaceImpl *unsafe_impl_from_IDirectDrawSurface4(IDirectDrawSurface4 *iface) DECLSPEC_HIDDEN;
241 IDirectDrawSurfaceImpl *unsafe_impl_from_IDirectDrawSurface7(IDirectDrawSurface7 *iface) DECLSPEC_HIDDEN;
243 /* Get the number of bytes per pixel for a given surface */
244 #define PFGET_BPP(pf) (pf.dwFlags&DDPF_PALETTEINDEXED8?1:((pf.dwRGBBitCount+7)/8))
245 #define GET_BPP(desc) PFGET_BPP(desc.ddpfPixelFormat)
247 #define DDRAW_INVALID_HANDLE ~0U
249 enum ddraw_handle_type
251 DDRAW_HANDLE_FREE,
252 DDRAW_HANDLE_MATERIAL,
253 DDRAW_HANDLE_MATRIX,
254 DDRAW_HANDLE_STATEBLOCK,
255 DDRAW_HANDLE_SURFACE,
258 struct ddraw_handle_entry
260 void *object;
261 enum ddraw_handle_type type;
264 struct ddraw_handle_table
266 struct ddraw_handle_entry *entries;
267 struct ddraw_handle_entry *free_entries;
268 UINT table_size;
269 UINT entry_count;
272 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size) DECLSPEC_HIDDEN;
273 void ddraw_handle_table_destroy(struct ddraw_handle_table *t) DECLSPEC_HIDDEN;
274 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
275 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
276 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
278 struct IDirect3DDeviceImpl
280 /* IUnknown */
281 const IDirect3DDevice7Vtbl *lpVtbl;
282 const IDirect3DDevice3Vtbl *IDirect3DDevice3_vtbl;
283 const IDirect3DDevice2Vtbl *IDirect3DDevice2_vtbl;
284 const IDirect3DDeviceVtbl *IDirect3DDevice_vtbl;
285 LONG ref;
287 /* Other object connections */
288 struct wined3d_device *wined3d_device;
289 IDirectDrawImpl *ddraw;
290 struct wined3d_buffer *indexbuffer;
291 IDirectDrawSurfaceImpl *target;
293 /* Viewport management */
294 struct list viewport_list;
295 IDirect3DViewportImpl *current_viewport;
296 D3DVIEWPORT7 active_viewport;
298 /* Required to keep track which of two available texture blending modes in d3ddevice3 is used */
299 BOOL legacyTextureBlending;
301 /* Light state */
302 DWORD material;
304 /* Rendering functions to wrap D3D(1-3) to D3D7 */
305 D3DPRIMITIVETYPE primitive_type;
306 DWORD vertex_type;
307 DWORD render_flags;
308 DWORD nb_vertices;
309 LPBYTE vertex_buffer;
310 DWORD vertex_size;
311 DWORD buffer_size;
313 /* Handle management */
314 struct ddraw_handle_table handle_table;
315 D3DMATRIXHANDLE world, proj, view;
318 HRESULT d3d_device_init(IDirect3DDeviceImpl *device, IDirectDrawImpl *ddraw,
319 IDirectDrawSurfaceImpl *target) DECLSPEC_HIDDEN;
321 /* The IID */
322 extern const GUID IID_D3DDEVICE_WineD3D DECLSPEC_HIDDEN;
324 /* Helper functions */
325 HRESULT IDirect3DImpl_GetCaps(const struct wined3d *wined3d,
326 D3DDEVICEDESC *Desc123, D3DDEVICEDESC7 *Desc7) DECLSPEC_HIDDEN;
327 WINED3DZBUFFERTYPE IDirect3DDeviceImpl_UpdateDepthStencil(IDirect3DDeviceImpl *This) DECLSPEC_HIDDEN;
329 static inline IDirect3DDeviceImpl *device_from_device1(IDirect3DDevice *iface)
331 return (IDirect3DDeviceImpl *)((char*)iface - FIELD_OFFSET(IDirect3DDeviceImpl, IDirect3DDevice_vtbl));
334 static inline IDirect3DDeviceImpl *device_from_device2(IDirect3DDevice2 *iface)
336 return (IDirect3DDeviceImpl *)((char*)iface - FIELD_OFFSET(IDirect3DDeviceImpl, IDirect3DDevice2_vtbl));
339 static inline IDirect3DDeviceImpl *device_from_device3(IDirect3DDevice3 *iface)
341 return (IDirect3DDeviceImpl *)((char*)iface - FIELD_OFFSET(IDirect3DDeviceImpl, IDirect3DDevice3_vtbl));
344 /*****************************************************************************
345 * IDirectDrawClipper implementation structure
346 *****************************************************************************/
347 struct IDirectDrawClipperImpl
349 /* IUnknown fields */
350 const IDirectDrawClipperVtbl *lpVtbl;
351 LONG ref;
353 struct wined3d_clipper *wineD3DClipper;
354 BOOL initialized;
357 HRESULT ddraw_clipper_init(IDirectDrawClipperImpl *clipper) DECLSPEC_HIDDEN;
359 /*****************************************************************************
360 * IDirectDrawPalette implementation structure
361 *****************************************************************************/
362 struct IDirectDrawPaletteImpl
364 /* IUnknown fields */
365 const IDirectDrawPaletteVtbl *lpVtbl;
366 LONG ref;
368 struct wined3d_palette *wineD3DPalette;
370 /* IDirectDrawPalette fields */
371 IUnknown *ifaceToRelease;
374 HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
375 IDirectDrawImpl *ddraw, DWORD flags, PALETTEENTRY *entries) DECLSPEC_HIDDEN;
377 /* Helper structures */
378 struct object_creation_info
380 const CLSID *clsid;
381 HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID riid,
382 void **ppObj);
385 /******************************************************************************
386 * IDirect3DLight implementation structure - Wraps to D3D7
387 ******************************************************************************/
388 struct IDirect3DLightImpl
390 const IDirect3DLightVtbl *lpVtbl;
391 LONG ref;
393 /* IDirect3DLight fields */
394 IDirectDrawImpl *ddraw;
396 /* If this light is active for one viewport, put the viewport here */
397 IDirect3DViewportImpl *active_viewport;
399 D3DLIGHT2 light;
400 D3DLIGHT7 light7;
402 DWORD dwLightIndex;
404 struct list entry;
407 /* Helper functions */
408 void light_activate(IDirect3DLightImpl *light) DECLSPEC_HIDDEN;
409 void light_deactivate(IDirect3DLightImpl *light) DECLSPEC_HIDDEN;
410 void d3d_light_init(IDirect3DLightImpl *light, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
412 /******************************************************************************
413 * IDirect3DMaterial implementation structure - Wraps to D3D7
414 ******************************************************************************/
415 struct IDirect3DMaterialImpl
417 const IDirect3DMaterial3Vtbl *lpVtbl;
418 const IDirect3DMaterial2Vtbl *IDirect3DMaterial2_vtbl;
419 const IDirect3DMaterialVtbl *IDirect3DMaterial_vtbl;
420 LONG ref;
422 /* IDirect3DMaterial2 fields */
423 IDirectDrawImpl *ddraw;
424 IDirect3DDeviceImpl *active_device;
426 D3DMATERIAL mat;
427 DWORD Handle;
430 /* Helper functions */
431 void material_activate(IDirect3DMaterialImpl* This) DECLSPEC_HIDDEN;
432 void d3d_material_init(IDirect3DMaterialImpl *material, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
434 /*****************************************************************************
435 * IDirect3DViewport - Wraps to D3D7
436 *****************************************************************************/
437 struct IDirect3DViewportImpl
439 const IDirect3DViewport3Vtbl *lpVtbl;
440 LONG ref;
442 /* IDirect3DViewport fields */
443 IDirectDrawImpl *ddraw;
445 /* If this viewport is active for one device, put the device here */
446 IDirect3DDeviceImpl *active_device;
448 DWORD num_lights;
449 DWORD map_lights;
451 int use_vp2;
453 union
455 D3DVIEWPORT vp1;
456 D3DVIEWPORT2 vp2;
457 } viewports;
459 struct list entry;
460 struct list light_list;
462 /* Background material */
463 IDirect3DMaterialImpl *background;
466 /* Helper functions */
467 void viewport_activate(IDirect3DViewportImpl* This, BOOL ignore_lights) DECLSPEC_HIDDEN;
468 void d3d_viewport_init(IDirect3DViewportImpl *viewport, IDirectDrawImpl *ddraw) DECLSPEC_HIDDEN;
470 /*****************************************************************************
471 * IDirect3DExecuteBuffer - Wraps to D3D7
472 *****************************************************************************/
473 struct IDirect3DExecuteBufferImpl
475 /* IUnknown */
476 const IDirect3DExecuteBufferVtbl *lpVtbl;
477 LONG ref;
479 /* IDirect3DExecuteBuffer fields */
480 IDirectDrawImpl *ddraw;
481 IDirect3DDeviceImpl *d3ddev;
483 D3DEXECUTEBUFFERDESC desc;
484 D3DEXECUTEDATA data;
486 /* This buffer will store the transformed vertices */
487 void *vertex_data;
488 WORD *indices;
489 int nb_indices;
491 /* This flags is set to TRUE if we allocated ourselves the
492 * data buffer
494 BOOL need_free;
497 HRESULT d3d_execute_buffer_init(IDirect3DExecuteBufferImpl *execute_buffer,
498 IDirect3DDeviceImpl *device, D3DEXECUTEBUFFERDESC *desc) DECLSPEC_HIDDEN;
500 /* The execute function */
501 HRESULT d3d_execute_buffer_execute(IDirect3DExecuteBufferImpl *execute_buffer,
502 IDirect3DDeviceImpl *device, IDirect3DViewportImpl *viewport) DECLSPEC_HIDDEN;
504 /*****************************************************************************
505 * IDirect3DVertexBuffer
506 *****************************************************************************/
507 struct IDirect3DVertexBufferImpl
509 /*** IUnknown Methods ***/
510 const IDirect3DVertexBuffer7Vtbl *lpVtbl;
511 const IDirect3DVertexBufferVtbl *IDirect3DVertexBuffer_vtbl;
512 LONG ref;
514 /*** WineD3D and ddraw links ***/
515 struct wined3d_buffer *wineD3DVertexBuffer;
516 struct wined3d_vertex_declaration *wineD3DVertexDeclaration;
517 IDirectDrawImpl *ddraw;
519 /*** Storage for D3D7 specific things ***/
520 DWORD Caps;
521 DWORD fvf;
524 HRESULT d3d_vertex_buffer_init(IDirect3DVertexBufferImpl *buffer,
525 IDirectDrawImpl *ddraw, D3DVERTEXBUFFERDESC *desc) DECLSPEC_HIDDEN;
527 static inline IDirect3DVertexBufferImpl *vb_from_vb1(IDirect3DVertexBuffer *iface)
529 return (IDirect3DVertexBufferImpl *)((char*)iface
530 - FIELD_OFFSET(IDirect3DVertexBufferImpl, IDirect3DVertexBuffer_vtbl));
533 /*****************************************************************************
534 * Helper functions from utils.c
535 *****************************************************************************/
537 #define GET_TEXCOUNT_FROM_FVF(d3dvtVertexType) \
538 (((d3dvtVertexType) & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT)
540 #define GET_TEXCOORD_SIZE_FROM_FVF(d3dvtVertexType, tex_num) \
541 (((((d3dvtVertexType) >> (16 + (2 * (tex_num)))) + 1) & 0x03) + 1)
543 void PixelFormat_WineD3DtoDD(DDPIXELFORMAT *DDPixelFormat, enum wined3d_format_id WineD3DFormat) DECLSPEC_HIDDEN;
544 enum wined3d_format_id PixelFormat_DD2WineD3D(const DDPIXELFORMAT *DDPixelFormat) DECLSPEC_HIDDEN;
545 void DDRAW_dump_surface_desc(const DDSURFACEDESC2 *lpddsd) DECLSPEC_HIDDEN;
546 void dump_D3DMATRIX(const D3DMATRIX *mat) DECLSPEC_HIDDEN;
547 void DDRAW_dump_DDCAPS(const DDCAPS *lpcaps) DECLSPEC_HIDDEN;
548 DWORD get_flexible_vertex_size(DWORD d3dvtVertexType) DECLSPEC_HIDDEN;
549 void DDRAW_dump_DDSCAPS2(const DDSCAPS2 *in) DECLSPEC_HIDDEN;
550 void DDRAW_dump_cooperativelevel(DWORD cooplevel) DECLSPEC_HIDDEN;
552 /* This only needs to be here as long the processvertices functionality of
553 * IDirect3DExecuteBuffer isn't in WineD3D */
554 void multiply_matrix(LPD3DMATRIX dest, const D3DMATRIX *src1, const D3DMATRIX *src2) DECLSPEC_HIDDEN;
556 /* Used for generic dumping */
557 typedef struct
559 DWORD val;
560 const char* name;
561 } flag_info;
563 #define FE(x) { x, #x }
565 typedef struct
567 DWORD val;
568 const char* name;
569 void (*func)(const void *);
570 ptrdiff_t offset;
571 } member_info;
573 /* Structure copy */
574 #define ME(x,f,e) { x, #x, (void (*)(const void *))(f), offsetof(STRUCT, e) }
576 #define DD_STRUCT_COPY_BYSIZE_(to,from,from_size) \
577 do { \
578 DWORD __size = (to)->dwSize; \
579 DWORD __copysize = min(__size, from_size); \
580 assert(to != from); \
581 memcpy(to, from, __copysize); \
582 memset((char*)(to) + __copysize, 0, __size - __copysize); \
583 (to)->dwSize = __size; /* restore size */ \
584 } while (0)
586 #define DD_STRUCT_COPY_BYSIZE(to,from) DD_STRUCT_COPY_BYSIZE_(to,from,(from)->dwSize)
588 #define SIZEOF_END_PADDING(type, last_field) \
589 (sizeof(type) - offsetof(type, last_field) - sizeof(((type *)0)->last_field))
591 static inline void copy_to_surfacedesc2(DDSURFACEDESC2 *to, DDSURFACEDESC2 *from)
593 DWORD from_size = from->dwSize;
594 if (from_size == sizeof(DDSURFACEDESC))
595 from_size -= SIZEOF_END_PADDING(DDSURFACEDESC, ddsCaps);
596 to->dwSize = sizeof(DDSURFACEDESC2); /* for struct copy */
597 DD_STRUCT_COPY_BYSIZE_(to, from, from_size);
600 HRESULT hr_ddraw_from_wined3d(HRESULT hr) DECLSPEC_HIDDEN;
602 #endif