winex11: Implement a separate entry point for PatBlt and simplify the StretchBlt...
[wine] / dlls / ddraw / vertexbuffer.c
1 /* Direct3D Vertex Buffer
2  * Copyright (c) 2002 Lionel ULMER
3  * Copyright (c) 2006 Stefan DÖSINGER
4  *
5  * This file contains the implementation of Direct3DVertexBuffer COM object
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20  */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include "ddraw_private.h"
26
27 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
28
29 /*****************************************************************************
30  * IUnknown Methods
31  *****************************************************************************/
32
33 /*****************************************************************************
34  * IDirect3DVertexBuffer7::QueryInterface
35  *
36  * The QueryInterface Method for Vertex Buffers
37  * For a link to QueryInterface rules, see IDirectDraw7::QueryInterface
38  *
39  * Params
40  *  riid: Queryied Interface id
41  *  obj: Address to return the interface pointer
42  *
43  * Returns:
44  *  S_OK on success
45  *  E_NOINTERFACE if the interface wasn't found
46  *
47  *****************************************************************************/
48 static HRESULT WINAPI
49 IDirect3DVertexBufferImpl_QueryInterface(IDirect3DVertexBuffer7 *iface,
50                                          REFIID riid,
51                                          void  **obj)
52 {
53     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
54
55     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
56
57     /* By default, set the object pointer to NULL */
58     *obj = NULL;
59
60     if ( IsEqualGUID( &IID_IUnknown,  riid ) )
61     {
62         IUnknown_AddRef(iface);
63         *obj = iface;
64         TRACE("  Creating IUnknown interface at %p.\n", *obj);
65         return S_OK;
66     }
67     if ( IsEqualGUID( &IID_IDirect3DVertexBuffer, riid ) )
68     {
69         IUnknown_AddRef(iface);
70         *obj = &This->IDirect3DVertexBuffer_vtbl;
71         TRACE("  Creating IDirect3DVertexBuffer interface %p\n", *obj);
72         return S_OK;
73     }
74     if ( IsEqualGUID( &IID_IDirect3DVertexBuffer7, riid ) )
75     {
76         IUnknown_AddRef(iface);
77         *obj = iface;
78         TRACE("  Creating IDirect3DVertexBuffer7 interface %p\n", *obj);
79         return S_OK;
80     }
81     FIXME("(%p): interface for IID %s NOT found!\n", This, debugstr_guid(riid));
82     return E_NOINTERFACE;
83 }
84
85 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_QueryInterface(IDirect3DVertexBuffer *iface,
86         REFIID riid, void **obj)
87 {
88     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
89
90     return IDirect3DVertexBuffer7_QueryInterface((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), riid, obj);
91 }
92
93 /*****************************************************************************
94  * IDirect3DVertexBuffer7::AddRef
95  *
96  * AddRef for Vertex Buffers
97  *
98  * Returns:
99  *  The new refcount
100  *
101  *****************************************************************************/
102 static ULONG WINAPI
103 IDirect3DVertexBufferImpl_AddRef(IDirect3DVertexBuffer7 *iface)
104 {
105     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
106     ULONG ref = InterlockedIncrement(&This->ref);
107
108     TRACE("%p increasing refcount to %u.\n", This, ref);
109
110     return ref;
111 }
112
113 static ULONG WINAPI IDirect3DVertexBufferImpl_1_AddRef(IDirect3DVertexBuffer *iface)
114 {
115     TRACE("iface %p.\n", iface);
116
117     return IDirect3DVertexBuffer7_AddRef((IDirect3DVertexBuffer7 *)vb_from_vb1(iface));
118 }
119
120
121 /*****************************************************************************
122  * IDirect3DVertexBuffer7::Release
123  *
124  * Release for Vertex Buffers
125  *
126  * Returns:
127  *  The new refcount
128  *
129  *****************************************************************************/
130 static ULONG WINAPI
131 IDirect3DVertexBufferImpl_Release(IDirect3DVertexBuffer7 *iface)
132 {
133     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
134     ULONG ref = InterlockedDecrement(&This->ref);
135
136     TRACE("%p decreasing refcount to %u.\n", This, ref);
137
138     if (ref == 0)
139     {
140         struct wined3d_buffer *curVB = NULL;
141         UINT offset, stride;
142
143         EnterCriticalSection(&ddraw_cs);
144         /* D3D7 Vertex buffers don't stay bound in the device, they are passed as a parameter
145          * to drawPrimitiveVB. DrawPrimitiveVB sets them as the stream source in wined3d,
146          * and they should get unset there before they are destroyed
147          */
148         IWineD3DDevice_GetStreamSource(This->ddraw->wineD3DDevice,
149                                        0 /* Stream number */,
150                                        &curVB,
151                                        &offset,
152                                        &stride);
153         if(curVB == This->wineD3DVertexBuffer)
154         {
155             IWineD3DDevice_SetStreamSource(This->ddraw->wineD3DDevice,
156                                         0 /* Steam number */,
157                                         NULL /* stream data */,
158                                         0 /* Offset */,
159                                         0 /* stride */);
160         }
161         if (curVB)
162             wined3d_buffer_decref(curVB); /* For the GetStreamSource */
163
164         wined3d_vertex_declaration_decref(This->wineD3DVertexDeclaration);
165         wined3d_buffer_decref(This->wineD3DVertexBuffer);
166         LeaveCriticalSection(&ddraw_cs);
167         HeapFree(GetProcessHeap(), 0, This);
168
169         return 0;
170     }
171     return ref;
172 }
173
174 static ULONG WINAPI IDirect3DVertexBufferImpl_1_Release(IDirect3DVertexBuffer *iface)
175 {
176     TRACE("iface %p.\n", iface);
177
178     return IDirect3DVertexBuffer7_Release((IDirect3DVertexBuffer7 *)vb_from_vb1(iface));
179 }
180
181 /*****************************************************************************
182  * IDirect3DVertexBuffer Methods
183  *****************************************************************************/
184
185 /*****************************************************************************
186  * IDirect3DVertexBuffer7::Lock
187  *
188  * Locks the vertex buffer and returns a pointer to the vertex data
189  * Locking vertex buffers is similar to locking surfaces, because Windows
190  * uses surfaces to store vertex data internally (According to the DX sdk)
191  *
192  * Params:
193  *  Flags: Locking flags. Relevant here are DDLOCK_READONLY, DDLOCK_WRITEONLY,
194  *         DDLOCK_DISCARDCONTENTS and DDLOCK_NOOVERWRITE.
195  *  Data:  Returns a pointer to the vertex data
196  *  Size:  Returns the size of the buffer if not NULL
197  *
198  * Returns:
199  *  D3D_OK on success
200  *  DDERR_INVALIDPARAMS if Data is NULL
201  *  D3DERR_VERTEXBUFFEROPTIMIZED if called on an optimized buffer(WineD3D)
202  *
203  *****************************************************************************/
204 static HRESULT WINAPI
205 IDirect3DVertexBufferImpl_Lock(IDirect3DVertexBuffer7 *iface,
206                                DWORD Flags,
207                                void **Data,
208                                DWORD *Size)
209 {
210     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
211     struct wined3d_resource_desc wined3d_desc;
212     struct wined3d_resource *wined3d_resource;
213     HRESULT hr;
214     DWORD wined3d_flags = 0;
215
216     TRACE("iface %p, flags %#x, data %p, data_size %p.\n", iface, Flags, Data, Size);
217
218     /* Writeonly: Pointless. Event: Unsupported by native according to the sdk
219      * nosyslock: Not applicable
220      */
221     if(!(Flags & DDLOCK_WAIT))          wined3d_flags |= WINED3DLOCK_DONOTWAIT;
222     if(Flags & DDLOCK_READONLY)         wined3d_flags |= WINED3DLOCK_READONLY;
223     if(Flags & DDLOCK_NOOVERWRITE)      wined3d_flags |= WINED3DLOCK_NOOVERWRITE;
224     if(Flags & DDLOCK_DISCARDCONTENTS)  wined3d_flags |= WINED3DLOCK_DISCARD;
225
226     EnterCriticalSection(&ddraw_cs);
227     if(Size)
228     {
229         /* Get the size, for returning it, and for locking */
230         wined3d_resource = wined3d_buffer_get_resource(This->wineD3DVertexBuffer);
231         wined3d_resource_get_desc(wined3d_resource, &wined3d_desc);
232         *Size = wined3d_desc.size;
233     }
234
235     hr = wined3d_buffer_map(This->wineD3DVertexBuffer, 0, 0, (BYTE **)Data, wined3d_flags);
236     LeaveCriticalSection(&ddraw_cs);
237     return hr;
238 }
239
240 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Lock(IDirect3DVertexBuffer *iface, DWORD Flags,
241         void **Data, DWORD *Size)
242 {
243     TRACE("iface %p, flags %#x, data %p, data_size %p.\n", iface, Flags, Data, Size);
244
245     return IDirect3DVertexBuffer7_Lock((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), Flags, Data, Size);
246 }
247
248 /*****************************************************************************
249  * IDirect3DVertexBuffer7::Unlock
250  *
251  * Unlocks a vertex Buffer
252  *
253  * Returns:
254  *  D3D_OK on success
255  *
256  *****************************************************************************/
257 static HRESULT WINAPI
258 IDirect3DVertexBufferImpl_Unlock(IDirect3DVertexBuffer7 *iface)
259 {
260     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
261
262     TRACE("iface %p.\n", iface);
263
264     EnterCriticalSection(&ddraw_cs);
265     wined3d_buffer_unmap(This->wineD3DVertexBuffer);
266     LeaveCriticalSection(&ddraw_cs);
267
268     return D3D_OK;
269 }
270
271 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Unlock(IDirect3DVertexBuffer *iface)
272 {
273     TRACE("iface %p.\n", iface);
274
275     return IDirect3DVertexBuffer7_Unlock((IDirect3DVertexBuffer7 *)vb_from_vb1(iface));
276 }
277
278
279 /*****************************************************************************
280  * IDirect3DVertexBuffer7::ProcessVertices
281  *
282  * Processes untransformed Vertices into a transformed or optimized vertex
283  * buffer. It can also perform other operations, such as lighting or clipping
284  *
285  * Params
286  *  VertexOp: Operation(s) to perform: D3DVOP_CLIP, _EXTENTS, _LIGHT, _TRANSFORM
287  *  DestIndex: Index in the destination buffer(This), where the vertices are
288  *             placed
289  *  Count: Number of Vertices in the Source buffer to process
290  *  SrcBuffer: Source vertex buffer
291  *  SrcIndex: Index of the first vertex in the src buffer to process
292  *  D3DDevice: Device to use for transformation
293  *  Flags: 0 for default, D3DPV_DONOTCOPYDATA to prevent copying
294  *         unchaned vertices
295  *
296  * Returns:
297  *  D3D_OK on success
298  *  DDERR_INVALIDPARAMS If D3DVOP_TRANSFORM wasn't passed
299  *
300  *****************************************************************************/
301 static HRESULT WINAPI
302 IDirect3DVertexBufferImpl_ProcessVertices(IDirect3DVertexBuffer7 *iface,
303                                           DWORD VertexOp,
304                                           DWORD DestIndex,
305                                           DWORD Count,
306                                           IDirect3DVertexBuffer7 *SrcBuffer,
307                                           DWORD SrcIndex,
308                                           IDirect3DDevice7 *D3DDevice,
309                                           DWORD Flags)
310 {
311     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
312     IDirect3DVertexBufferImpl *Src = (IDirect3DVertexBufferImpl *)SrcBuffer;
313     IDirect3DDeviceImpl *D3D = (IDirect3DDeviceImpl *)D3DDevice;
314     BOOL oldClip, doClip;
315     HRESULT hr;
316
317     TRACE("iface %p, vertex_op %#x, dst_idx %u, count %u, src_buffer %p, src_idx %u, device %p, flags %#x.\n",
318             iface, VertexOp, DestIndex, Count, SrcBuffer, SrcIndex, D3DDevice, Flags);
319
320     /* Vertex operations:
321      * D3DVOP_CLIP: Clips vertices outside the viewing frustrum. Needs clipping information
322      * in the vertex buffer (Buffer may not be created with D3DVBCAPS_DONOTCLIP)
323      * D3DVOP_EXTENTS: Causes the screen extents to be updated when rendering the vertices
324      * D3DVOP_LIGHT: Lights the vertices
325      * D3DVOP_TRANSFORM: Transform the vertices. This flag is necessary
326      *
327      * WineD3D only transforms and clips the vertices by now, so EXTENTS and LIGHT
328      * are not implemented. Clipping is disabled ATM, because of unsure conditions.
329      */
330     if( !(VertexOp & D3DVOP_TRANSFORM) ) return DDERR_INVALIDPARAMS;
331
332     EnterCriticalSection(&ddraw_cs);
333     /* WineD3D doesn't know d3d7 vertex operation, it uses
334      * render states instead. Set the render states according to
335      * the vertex ops
336      */
337     doClip = VertexOp & D3DVOP_CLIP ? TRUE : FALSE;
338     IWineD3DDevice_GetRenderState(D3D->wineD3DDevice,
339                                   WINED3DRS_CLIPPING,
340                                   (DWORD *) &oldClip);
341     if(doClip != oldClip)
342     {
343         IWineD3DDevice_SetRenderState(D3D->wineD3DDevice,
344                                       WINED3DRS_CLIPPING,
345                                       doClip);
346     }
347
348     IWineD3DDevice_SetStreamSource(D3D->wineD3DDevice,
349                                    0, /* Stream No */
350                                    Src->wineD3DVertexBuffer,
351                                    0, /* Offset */
352                                    get_flexible_vertex_size(Src->fvf));
353     IWineD3DDevice_SetVertexDeclaration(D3D->wineD3DDevice,
354                                         Src->wineD3DVertexDeclaration);
355     hr = IWineD3DDevice_ProcessVertices(D3D->wineD3DDevice,
356                                         SrcIndex,
357                                         DestIndex,
358                                         Count,
359                                         This->wineD3DVertexBuffer,
360                                         NULL /* Output vdecl */,
361                                         Flags,
362                                         This->fvf);
363
364     /* Restore the states if needed */
365     if(doClip != oldClip)
366         IWineD3DDevice_SetRenderState(D3D->wineD3DDevice,
367                                       WINED3DRS_CLIPPING,
368                                       oldClip);
369     LeaveCriticalSection(&ddraw_cs);
370     return hr;
371 }
372
373 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_ProcessVertices(IDirect3DVertexBuffer *iface,
374         DWORD VertexOp, DWORD DestIndex, DWORD Count, IDirect3DVertexBuffer *SrcBuffer,
375         DWORD SrcIndex, IDirect3DDevice3 *D3DDevice, DWORD Flags)
376 {
377     IDirect3DVertexBufferImpl *Src = SrcBuffer ? vb_from_vb1(SrcBuffer) : NULL;
378     IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
379
380     TRACE("iface %p, vertex_op %#x, dst_idx %u, count %u, src_buffer %p, src_idx %u, device %p, flags %#x.\n",
381             iface, VertexOp, DestIndex, Count, SrcBuffer, SrcIndex, D3DDevice, Flags);
382
383     return IDirect3DVertexBuffer7_ProcessVertices((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), VertexOp,
384             DestIndex, Count, (IDirect3DVertexBuffer7 *)Src, SrcIndex, (IDirect3DDevice7 *)D3D, Flags);
385 }
386
387 /*****************************************************************************
388  * IDirect3DVertexBuffer7::GetVertexBufferDesc
389  *
390  * Returns the description of a vertex buffer
391  *
392  * Params:
393  *  Desc: Address to write the description to
394  *
395  * Returns
396  *  DDERR_INVALIDPARAMS if Desc is NULL
397  *  D3D_OK on success
398  *
399  *****************************************************************************/
400 static HRESULT WINAPI
401 IDirect3DVertexBufferImpl_GetVertexBufferDesc(IDirect3DVertexBuffer7 *iface,
402                                               D3DVERTEXBUFFERDESC *Desc)
403 {
404     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
405     struct wined3d_resource_desc wined3d_desc;
406     struct wined3d_resource *wined3d_resource;
407
408     TRACE("iface %p, desc %p.\n", iface, Desc);
409
410     if(!Desc) return DDERR_INVALIDPARAMS;
411
412     EnterCriticalSection(&ddraw_cs);
413     wined3d_resource = wined3d_buffer_get_resource(This->wineD3DVertexBuffer);
414     wined3d_resource_get_desc(wined3d_resource, &wined3d_desc);
415     LeaveCriticalSection(&ddraw_cs);
416
417     /* Now fill the Desc structure */
418     Desc->dwCaps = This->Caps;
419     Desc->dwFVF = This->fvf;
420     Desc->dwNumVertices = wined3d_desc.size / get_flexible_vertex_size(This->fvf);
421
422     return D3D_OK;
423 }
424
425 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_GetVertexBufferDesc(IDirect3DVertexBuffer *iface,
426         D3DVERTEXBUFFERDESC *Desc)
427 {
428     TRACE("iface %p, desc %p.\n", iface, Desc);
429
430     return IDirect3DVertexBuffer7_GetVertexBufferDesc((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), Desc);
431 }
432
433
434 /*****************************************************************************
435  * IDirect3DVertexBuffer7::Optimize
436  *
437  * Converts an unoptimized vertex buffer into an optimized buffer
438  *
439  * Params:
440  *  D3DDevice: Device for which this buffer is optimized
441  *  Flags: Not used, should be set to 0
442  *
443  * Returns
444  *  D3D_OK, because it's a stub
445  *
446  *****************************************************************************/
447 static HRESULT WINAPI
448 IDirect3DVertexBufferImpl_Optimize(IDirect3DVertexBuffer7 *iface,
449                                    IDirect3DDevice7 *D3DDevice,
450                                    DWORD Flags)
451 {
452     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
453     static BOOL hide = FALSE;
454
455     TRACE("iface %p, device %p, flags %#x.\n", iface, D3DDevice, Flags);
456
457     if (!hide)
458     {
459         FIXME("iface %p, device %p, flags %#x stub!\n", iface, D3DDevice, Flags);
460         hide = TRUE;
461     }
462
463     /* We could forward this call to WineD3D and take advantage
464      * of it once we use OpenGL vertex buffers
465      */
466     EnterCriticalSection(&ddraw_cs);
467     This->Caps |= D3DVBCAPS_OPTIMIZED;
468     LeaveCriticalSection(&ddraw_cs);
469
470     return DD_OK;
471 }
472
473 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Optimize(IDirect3DVertexBuffer *iface,
474         IDirect3DDevice3 *D3DDevice, DWORD Flags)
475 {
476     IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
477
478     TRACE("iface %p, device %p, flags %#x.\n", iface, D3DDevice, Flags);
479
480     return IDirect3DVertexBuffer7_Optimize((IDirect3DVertexBuffer7 *)vb_from_vb1(iface),
481             (IDirect3DDevice7 *)D3D, Flags);
482 }
483
484 /*****************************************************************************
485  * IDirect3DVertexBuffer7::ProcessVerticesStrided
486  *
487  * This method processes untransformed strided vertices into a processed
488  * or optimized vertex buffer.
489  *
490  * For more details on the parameters, see
491  * IDirect3DVertexBuffer7::ProcessVertices
492  *
493  * Params:
494  *  VertexOp: Operations to perform
495  *  DestIndex: Destination index to write the vertices to
496  *  Count: Number of input vertices
497  *  StrideData: Array containing the input vertices
498  *  VertexTypeDesc: Vertex Description or source index?????????
499  *  D3DDevice: IDirect3DDevice7 to use for processing
500  *  Flags: Can be D3DPV_DONOTCOPYDATA to avoid copying unmodified vertices
501  *
502  * Returns
503  *  D3D_OK on success, or DDERR_*
504  *
505  *****************************************************************************/
506 static HRESULT WINAPI
507 IDirect3DVertexBufferImpl_ProcessVerticesStrided(IDirect3DVertexBuffer7 *iface,
508                                                  DWORD VertexOp,
509                                                  DWORD DestIndex,
510                                                  DWORD Count,
511                                                  D3DDRAWPRIMITIVESTRIDEDDATA *StrideData,
512                                                  DWORD VertexTypeDesc,
513                                                  IDirect3DDevice7 *D3DDevice,
514                                                  DWORD Flags)
515 {
516     FIXME("iface %p, vertex_op %#x, dst_idx %u, count %u, data %p, vertex_type %#x, device %p, flags %#x stub!\n",
517             iface, VertexOp, DestIndex, Count, StrideData, VertexTypeDesc, D3DDevice, Flags);
518
519     return DD_OK;
520 }
521
522 /*****************************************************************************
523  * The VTables
524  *****************************************************************************/
525
526 static const struct IDirect3DVertexBuffer7Vtbl d3d_vertex_buffer7_vtbl =
527 {
528     /*** IUnknown Methods ***/
529     IDirect3DVertexBufferImpl_QueryInterface,
530     IDirect3DVertexBufferImpl_AddRef,
531     IDirect3DVertexBufferImpl_Release,
532     /*** IDirect3DVertexBuffer Methods ***/
533     IDirect3DVertexBufferImpl_Lock,
534     IDirect3DVertexBufferImpl_Unlock,
535     IDirect3DVertexBufferImpl_ProcessVertices,
536     IDirect3DVertexBufferImpl_GetVertexBufferDesc,
537     IDirect3DVertexBufferImpl_Optimize,
538     /*** IDirect3DVertexBuffer7 Methods ***/
539     IDirect3DVertexBufferImpl_ProcessVerticesStrided
540 };
541
542 static const struct IDirect3DVertexBufferVtbl d3d_vertex_buffer1_vtbl =
543 {
544     /*** IUnknown Methods ***/
545     IDirect3DVertexBufferImpl_1_QueryInterface,
546     IDirect3DVertexBufferImpl_1_AddRef,
547     IDirect3DVertexBufferImpl_1_Release,
548     /*** IDirect3DVertexBuffer Methods ***/
549     IDirect3DVertexBufferImpl_1_Lock,
550     IDirect3DVertexBufferImpl_1_Unlock,
551     IDirect3DVertexBufferImpl_1_ProcessVertices,
552     IDirect3DVertexBufferImpl_1_GetVertexBufferDesc,
553     IDirect3DVertexBufferImpl_1_Optimize
554 };
555
556 HRESULT d3d_vertex_buffer_init(IDirect3DVertexBufferImpl *buffer,
557         IDirectDrawImpl *ddraw, D3DVERTEXBUFFERDESC *desc)
558 {
559     DWORD usage;
560     HRESULT hr;
561
562     buffer->lpVtbl = &d3d_vertex_buffer7_vtbl;
563     buffer->IDirect3DVertexBuffer_vtbl = &d3d_vertex_buffer1_vtbl;
564     buffer->ref = 1;
565
566     buffer->ddraw = ddraw;
567     buffer->Caps = desc->dwCaps;
568     buffer->fvf = desc->dwFVF;
569
570     usage = desc->dwCaps & D3DVBCAPS_WRITEONLY ? WINED3DUSAGE_WRITEONLY : 0;
571     usage |= WINED3DUSAGE_STATICDECL;
572
573     EnterCriticalSection(&ddraw_cs);
574
575     hr = IWineD3DDevice_CreateVertexBuffer(ddraw->wineD3DDevice,
576             get_flexible_vertex_size(desc->dwFVF) * desc->dwNumVertices,
577             usage, desc->dwCaps & D3DVBCAPS_SYSTEMMEMORY ? WINED3DPOOL_SYSTEMMEM : WINED3DPOOL_DEFAULT,
578             buffer, &ddraw_null_wined3d_parent_ops, &buffer->wineD3DVertexBuffer);
579     if (FAILED(hr))
580     {
581         WARN("Failed to create wined3d vertex buffer, hr %#x.\n", hr);
582         LeaveCriticalSection(&ddraw_cs);
583
584         if (hr == WINED3DERR_INVALIDCALL)
585             return DDERR_INVALIDPARAMS;
586         else
587             return hr;
588     }
589
590     buffer->wineD3DVertexDeclaration = ddraw_find_decl(ddraw, desc->dwFVF);
591     if (!buffer->wineD3DVertexDeclaration)
592     {
593         ERR("Failed to find vertex declaration for fvf %#x.\n", desc->dwFVF);
594         wined3d_buffer_decref(buffer->wineD3DVertexBuffer);
595         LeaveCriticalSection(&ddraw_cs);
596
597         return DDERR_INVALIDPARAMS;
598     }
599     wined3d_vertex_declaration_incref(buffer->wineD3DVertexDeclaration);
600
601     LeaveCriticalSection(&ddraw_cs);
602
603     return D3D_OK;
604 }