msvcrt/tests: Remove a space before a '\n'.
[wine/gsoc-2012-control.git] / dlls / ddraw / vertexbuffer.c
blob18fe93eb231b0d63f2febf349941e7e59ed87304
1 /* Direct3D Vertex Buffer
2 * Copyright (c) 2002 Lionel ULMER
3 * Copyright (c) 2006 Stefan DÖSINGER
5 * This file contains the implementation of Direct3DVertexBuffer COM object
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.
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.
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
22 #include "config.h"
23 #include "wine/port.h"
24 #include "wine/debug.h"
26 #include <assert.h>
27 #include <stdarg.h>
28 #include <string.h>
29 #include <stdlib.h>
31 #define COBJMACROS
33 #include "windef.h"
34 #include "winbase.h"
35 #include "winerror.h"
36 #include "wingdi.h"
37 #include "wine/exception.h"
39 #include "ddraw.h"
40 #include "d3d.h"
42 #include "ddraw_private.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(d3d7);
45 WINE_DECLARE_DEBUG_CHANNEL(ddraw_thunk);
47 /*****************************************************************************
48 * IUnknown Methods
49 *****************************************************************************/
51 /*****************************************************************************
52 * IDirect3DVertexBuffer7::QueryInterface
54 * The QueryInterface Method for Vertex Buffers
55 * For a link to QueryInterface rules, see IDirectDraw7::QueryInterface
57 * Params
58 * riid: Queryied Interface id
59 * obj: Address to return the interface pointer
61 * Returns:
62 * S_OK on success
63 * E_NOINTERFACE if the interface wasn't found
65 *****************************************************************************/
66 static HRESULT WINAPI
67 IDirect3DVertexBufferImpl_QueryInterface(IDirect3DVertexBuffer7 *iface,
68 REFIID riid,
69 void **obj)
71 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
72 TRACE("(%p)->(%s,%p)\n", This, debugstr_guid(riid), obj);
74 /* By default, set the object pointer to NULL */
75 *obj = NULL;
77 if ( IsEqualGUID( &IID_IUnknown, riid ) )
79 IUnknown_AddRef(iface);
80 *obj = iface;
81 TRACE(" Creating IUnknown interface at %p.\n", *obj);
82 return S_OK;
84 if ( IsEqualGUID( &IID_IDirect3DVertexBuffer, riid ) )
86 IUnknown_AddRef(iface);
87 *obj = &This->IDirect3DVertexBuffer_vtbl;
88 TRACE(" Creating IDirect3DVertexBuffer interface %p\n", *obj);
89 return S_OK;
91 if ( IsEqualGUID( &IID_IDirect3DVertexBuffer7, riid ) )
93 IUnknown_AddRef(iface);
94 *obj = iface;
95 TRACE(" Creating IDirect3DVertexBuffer7 interface %p\n", *obj);
96 return S_OK;
98 FIXME("(%p): interface for IID %s NOT found!\n", This, debugstr_guid(riid));
99 return E_NOINTERFACE;
102 static HRESULT WINAPI
103 Thunk_IDirect3DVertexBufferImpl_1_QueryInterface(IDirect3DVertexBuffer *iface,
104 REFIID riid,
105 void **obj)
107 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
108 TRACE_(ddraw_thunk)("(%p)->(%s,%p) thunking to IDirect3DVertexBuffer7 interface.\n", This, debugstr_guid(riid), obj);
110 return IDirect3DVertexBuffer7_QueryInterface((IDirect3DVertexBuffer7 *)This, riid, obj);
113 /*****************************************************************************
114 * IDirect3DVertexBuffer7::AddRef
116 * AddRef for Vertex Buffers
118 * Returns:
119 * The new refcount
121 *****************************************************************************/
122 static ULONG WINAPI
123 IDirect3DVertexBufferImpl_AddRef(IDirect3DVertexBuffer7 *iface)
125 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
126 ULONG ref = InterlockedIncrement(&This->ref);
128 TRACE("(%p/%p)->() incrementing from %u.\n", This, iface, ref - 1);
130 return ref;
133 static ULONG WINAPI
134 Thunk_IDirect3DVertexBufferImpl_1_AddRef(IDirect3DVertexBuffer *iface)
136 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
137 TRACE_(ddraw_thunk)("(%p)->() thunking to IDirect3DVertexBuffer7 interface.\n", This);
139 return IDirect3DVertexBuffer7_AddRef((IDirect3DVertexBuffer7 *)This);
143 /*****************************************************************************
144 * IDirect3DVertexBuffer7::Release
146 * Release for Vertex Buffers
148 * Returns:
149 * The new refcount
151 *****************************************************************************/
152 static ULONG WINAPI
153 IDirect3DVertexBufferImpl_Release(IDirect3DVertexBuffer7 *iface)
155 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
156 ULONG ref = InterlockedDecrement(&This->ref);
158 TRACE("(%p)->() decrementing from %u.\n", This, ref + 1);
160 if (ref == 0)
162 IWineD3DVertexBuffer *curVB = NULL;
163 UINT offset, stride;
165 EnterCriticalSection(&ddraw_cs);
166 /* D3D7 Vertex buffers don't stay bound in the device, they are passed as a parameter
167 * to drawPrimitiveVB. DrawPrimitiveVB sets them as the stream source in wined3d,
168 * and they should get unset there before they are destroyed
170 IWineD3DDevice_GetStreamSource(This->ddraw->wineD3DDevice,
171 0 /* Stream number */,
172 &curVB,
173 &offset,
174 &stride);
175 if(curVB == This->wineD3DVertexBuffer)
177 IWineD3DDevice_SetStreamSource(This->ddraw->wineD3DDevice,
178 0 /* Steam number */,
179 NULL /* stream data */,
180 0 /* Offset */,
181 0 /* stride */);
183 if(curVB)
185 IWineD3DVertexBuffer_Release(curVB); /* For the GetStreamSource */
188 IWineD3DVertexDeclaration_Release(This->wineD3DVertexDeclaration);
189 IWineD3DVertexBuffer_Release(This->wineD3DVertexBuffer);
190 LeaveCriticalSection(&ddraw_cs);
191 HeapFree(GetProcessHeap(), 0, This);
193 return 0;
195 return ref;
198 static ULONG WINAPI
199 Thunk_IDirect3DVertexBufferImpl_1_Release(IDirect3DVertexBuffer *iface)
201 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
202 TRACE_(ddraw_thunk)("(%p)->() thunking to IDirect3DVertexBuffer7 interface.\n", This);
204 return IDirect3DVertexBuffer7_Release((IDirect3DVertexBuffer7 *)This);
207 /*****************************************************************************
208 * IDirect3DVertexBuffer Methods
209 *****************************************************************************/
211 /*****************************************************************************
212 * IDirect3DVertexBuffer7::Lock
214 * Locks the vertex buffer and returns a pointer to the vertex data
215 * Locking vertex buffers is similar to locking surfaces, because Windows
216 * uses surfaces to store vertex data internally (According to the DX sdk)
218 * Params:
219 * Flags: Locking flags. Relevant here are DDLOCK_READONLY, DDLOCK_WRITEONLY,
220 * DDLOCK_DISCARDCONTENTS and DDLOCK_NOOVERWRITE.
221 * Data: Returns a pointer to the vertex data
222 * Size: Returns the size of the buffer if not NULL
224 * Returns:
225 * D3D_OK on success
226 * DDERR_INVALIDPARAMS if Data is NULL
227 * D3DERR_VERTEXBUFFEROPTIMIZED if called on an optimized buffer(WineD3D)
229 *****************************************************************************/
230 static HRESULT WINAPI
231 IDirect3DVertexBufferImpl_Lock(IDirect3DVertexBuffer7 *iface,
232 DWORD Flags,
233 void **Data,
234 DWORD *Size)
236 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
237 WINED3DVERTEXBUFFER_DESC Desc;
238 HRESULT hr;
239 TRACE("(%p)->(%08x,%p,%p)\n", This, Flags, Data, Size);
241 EnterCriticalSection(&ddraw_cs);
242 if(Size)
244 /* Get the size, for returning it, and for locking */
245 hr = IWineD3DVertexBuffer_GetDesc(This->wineD3DVertexBuffer,
246 &Desc);
247 if(hr != D3D_OK)
249 ERR("(%p) IWineD3DVertexBuffer::GetDesc failed with hr=%08x\n", This, hr);
250 LeaveCriticalSection(&ddraw_cs);
251 return hr;
253 *Size = Desc.Size;
256 hr = IWineD3DVertexBuffer_Lock(This->wineD3DVertexBuffer,
257 0 /* OffsetToLock */,
258 0 /* SizeToLock, 0 == Full lock */,
259 (BYTE **) Data,
260 Flags);
261 LeaveCriticalSection(&ddraw_cs);
262 return hr;
265 static HRESULT WINAPI
266 Thunk_IDirect3DVertexBufferImpl_1_Lock(IDirect3DVertexBuffer *iface,
267 DWORD Flags,
268 void **Data,
269 DWORD *Size)
271 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
272 TRACE_(ddraw_thunk)("(%p)->(%08x,%p,%p) thunking to IDirect3DVertexBuffer7 interface.\n", This, Flags, Data, Size);
274 return IDirect3DVertexBuffer7_Lock((IDirect3DVertexBuffer7 *)This, Flags, Data, Size);
277 /*****************************************************************************
278 * IDirect3DVertexBuffer7::Unlock
280 * Unlocks a vertex Buffer
282 * Returns:
283 * D3D_OK on success
285 *****************************************************************************/
286 static HRESULT WINAPI
287 IDirect3DVertexBufferImpl_Unlock(IDirect3DVertexBuffer7 *iface)
289 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
290 HRESULT hr;
291 TRACE("(%p)->()\n", This);
293 EnterCriticalSection(&ddraw_cs);
294 hr = IWineD3DVertexBuffer_Unlock(This->wineD3DVertexBuffer);
295 LeaveCriticalSection(&ddraw_cs);
297 return hr;
300 static HRESULT WINAPI
301 Thunk_IDirect3DVertexBufferImpl_1_Unlock(IDirect3DVertexBuffer *iface)
303 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
304 TRACE_(ddraw_thunk)("(%p)->() thunking to IDirect3DVertexBuffer7 interface.\n", This);
306 return IDirect3DVertexBuffer7_Unlock((IDirect3DVertexBuffer7 *)This);
310 /*****************************************************************************
311 * IDirect3DVertexBuffer7::ProcessVertices
313 * Processes untransformed Vertices into a transformed or optimized vertex
314 * buffer. It can also perform other operations, such as lighting or clipping
316 * Params
317 * VertexOp: Operation(s) to perform: D3DVOP_CLIP, _EXTENTS, _LIGHT, _TRANSFORM
318 * DestIndex: Index in the destination buffer(This), where the vertices are
319 * placed
320 * Count: Number of Vertices in the Source buffer to process
321 * SrcBuffer: Source vertex buffer
322 * SrcIndex: Index of the first vertex in the src buffer to process
323 * D3DDevice: Device to use for transformation
324 * Flags: 0 for default, D3DPV_DONOTCOPYDATA to prevent copying
325 * unchaned vertices
327 * Returns:
328 * D3D_OK on success
329 * DDERR_INVALIDPARAMS If D3DVOP_TRANSFORM wasn't passed
331 *****************************************************************************/
332 static HRESULT WINAPI
333 IDirect3DVertexBufferImpl_ProcessVertices(IDirect3DVertexBuffer7 *iface,
334 DWORD VertexOp,
335 DWORD DestIndex,
336 DWORD Count,
337 IDirect3DVertexBuffer7 *SrcBuffer,
338 DWORD SrcIndex,
339 IDirect3DDevice7 *D3DDevice,
340 DWORD Flags)
342 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
343 IDirect3DVertexBufferImpl *Src = (IDirect3DVertexBufferImpl *)SrcBuffer;
344 IDirect3DDeviceImpl *D3D = (IDirect3DDeviceImpl *)D3DDevice;
345 BOOL oldClip, doClip;
346 HRESULT hr;
347 WINED3DVERTEXBUFFER_DESC Desc;
349 TRACE("(%p)->(%08x,%d,%d,%p,%d,%p,%08x)\n", This, VertexOp, DestIndex, Count, Src, SrcIndex, D3D, Flags);
351 /* Vertex operations:
352 * D3DVOP_CLIP: Clips vertices outside the viewing frustrum. Needs clipping information
353 * in the vertex buffer (Buffer may not be created with D3DVBCAPS_DONOTCLIP)
354 * D3DVOP_EXTENTS: Causes the screen extents to be updated when rendering the vertices
355 * D3DVOP_LIGHT: Lights the vertices
356 * D3DVOP_TRANSFORM: Transform the vertices. This flag is necessary
358 * WineD3D only transforms and clips the vertices by now, so EXTENTS and LIGHT
359 * are not implemented. Clipping is disabled ATM, because of unsure conditions.
361 if( !(VertexOp & D3DVOP_TRANSFORM) ) return DDERR_INVALIDPARAMS;
363 EnterCriticalSection(&ddraw_cs);
364 /* WineD3D doesn't know d3d7 vertex operation, it uses
365 * render states instead. Set the render states according to
366 * the vertex ops
368 doClip = VertexOp & D3DVOP_CLIP ? TRUE : FALSE;
369 IWineD3DDevice_GetRenderState(D3D->wineD3DDevice,
370 WINED3DRS_CLIPPING,
371 (DWORD *) &oldClip);
372 if(doClip != oldClip)
374 IWineD3DDevice_SetRenderState(D3D->wineD3DDevice,
375 WINED3DRS_CLIPPING,
376 doClip);
379 IWineD3DVertexBuffer_GetDesc(Src->wineD3DVertexBuffer,
380 &Desc);
381 IWineD3DDevice_SetStreamSource(D3D->wineD3DDevice,
382 0, /* Stream No */
383 Src->wineD3DVertexBuffer,
384 0, /* Offset */
385 get_flexible_vertex_size(Desc.FVF));
386 IWineD3DDevice_SetVertexDeclaration(D3D->wineD3DDevice,
387 Src->wineD3DVertexDeclaration);
388 hr = IWineD3DDevice_ProcessVertices(D3D->wineD3DDevice,
389 SrcIndex,
390 DestIndex,
391 Count,
392 This->wineD3DVertexBuffer,
393 NULL /* Output vdecl */,
394 Flags);
396 /* Restore the states if needed */
397 if(doClip != oldClip)
398 IWineD3DDevice_SetRenderState(D3D->wineD3DDevice,
399 WINED3DRS_CLIPPING,
400 oldClip);
401 LeaveCriticalSection(&ddraw_cs);
402 return hr;
405 static HRESULT WINAPI
406 Thunk_IDirect3DVertexBufferImpl_1_ProcessVertices(IDirect3DVertexBuffer *iface,
407 DWORD VertexOp,
408 DWORD DestIndex,
409 DWORD Count,
410 IDirect3DVertexBuffer *SrcBuffer,
411 DWORD SrcIndex,
412 IDirect3DDevice3 *D3DDevice,
413 DWORD Flags)
415 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
416 IDirect3DVertexBufferImpl *Src = SrcBuffer ? vb_from_vb1(SrcBuffer) : NULL;
417 IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
419 TRACE_(ddraw_thunk)("(%p)->(%08x,%08x,%08x,%p,%08x,%p,%08x) thunking to IDirect3DVertexBuffer7 interface.\n", This, VertexOp, DestIndex, Count, Src, SrcIndex, D3D, Flags);
421 return IDirect3DVertexBuffer7_ProcessVertices((IDirect3DVertexBuffer7 *)This, VertexOp, DestIndex,
422 Count, (IDirect3DVertexBuffer7 *)Src, SrcIndex, (IDirect3DDevice7 *)D3D, Flags);
425 /*****************************************************************************
426 * IDirect3DVertexBuffer7::GetVertexBufferDesc
428 * Returns the description of a vertex buffer
430 * Params:
431 * Desc: Address to write the description to
433 * Returns
434 * DDERR_INVALIDPARAMS if Desc is NULL
435 * D3D_OK on success
437 *****************************************************************************/
438 static HRESULT WINAPI
439 IDirect3DVertexBufferImpl_GetVertexBufferDesc(IDirect3DVertexBuffer7 *iface,
440 D3DVERTEXBUFFERDESC *Desc)
442 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
443 WINED3DVERTEXBUFFER_DESC WDesc;
444 HRESULT hr;
445 TRACE("(%p)->(%p)\n", This, Desc);
447 if(!Desc) return DDERR_INVALIDPARAMS;
449 EnterCriticalSection(&ddraw_cs);
450 hr = IWineD3DVertexBuffer_GetDesc(This->wineD3DVertexBuffer,
451 &WDesc);
452 if(hr != D3D_OK)
454 ERR("(%p) IWineD3DVertexBuffer::GetDesc failed with hr=%08x\n", This, hr);
455 LeaveCriticalSection(&ddraw_cs);
456 return hr;
459 /* Now fill the Desc structure */
460 Desc->dwCaps = This->Caps;
461 Desc->dwFVF = WDesc.FVF;
462 Desc->dwNumVertices = WDesc.Size / get_flexible_vertex_size(WDesc.FVF);
463 LeaveCriticalSection(&ddraw_cs);
465 return D3D_OK;
468 static HRESULT WINAPI
469 Thunk_IDirect3DVertexBufferImpl_1_GetVertexBufferDesc(IDirect3DVertexBuffer *iface,
470 D3DVERTEXBUFFERDESC *Desc)
472 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
473 TRACE_(ddraw_thunk)("(%p)->(%p) thunking to IDirect3DVertexBuffer7 interface.\n", This, Desc);
475 return IDirect3DVertexBuffer7_GetVertexBufferDesc((IDirect3DVertexBuffer7 *)This, Desc);
479 /*****************************************************************************
480 * IDirect3DVertexBuffer7::Optimize
482 * Converts an unoptimized vertex buffer into an optimized buffer
484 * Params:
485 * D3DDevice: Device for which this buffer is optimized
486 * Flags: Not used, should be set to 0
488 * Returns
489 * D3D_OK, because it's a stub
491 *****************************************************************************/
492 static HRESULT WINAPI
493 IDirect3DVertexBufferImpl_Optimize(IDirect3DVertexBuffer7 *iface,
494 IDirect3DDevice7 *D3DDevice,
495 DWORD Flags)
497 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
498 IDirect3DDeviceImpl *D3D = (IDirect3DDeviceImpl *)D3DDevice;
499 static BOOL hide = FALSE;
501 if (!hide)
503 FIXME("(%p)->(%p,%08x): stub!\n", This, D3D, Flags);
504 hide = TRUE;
507 /* We could forward this call to WineD3D and take advantage
508 * of it once we use OpenGL vertex buffers
510 EnterCriticalSection(&ddraw_cs);
511 This->Caps |= D3DVBCAPS_OPTIMIZED;
512 LeaveCriticalSection(&ddraw_cs);
514 return DD_OK;
517 static HRESULT WINAPI
518 Thunk_IDirect3DVertexBufferImpl_1_Optimize(IDirect3DVertexBuffer *iface,
519 IDirect3DDevice3 *D3DDevice,
520 DWORD Flags)
522 IDirect3DVertexBufferImpl *This = vb_from_vb1(iface);
523 IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
524 TRACE_(ddraw_thunk)("(%p)->(%p,%08x) thunking to IDirect3DVertexBuffer7 interface.\n", This, D3D, Flags);
526 return IDirect3DVertexBuffer7_Optimize((IDirect3DVertexBuffer7 *)This, (IDirect3DDevice7 *)D3D, Flags);
529 /*****************************************************************************
530 * IDirect3DVertexBuffer7::ProcessVerticesStrided
532 * This method processes untransformed strided vertices into a processed
533 * or optimized vertex buffer.
535 * For more details on the parameters, see
536 * IDirect3DVertexBuffer7::ProcessVertices
538 * Params:
539 * VertexOp: Operations to perform
540 * DestIndex: Destination index to write the vertices to
541 * Count: Number of input vertices
542 * StrideData: Array containing the input vertices
543 * VertexTypeDesc: Vertex Description or source index?????????
544 * D3DDevice: IDirect3DDevice7 to use for processing
545 * Flags: Can be D3DPV_DONOTCOPYDATA to avoid copying unmodified vertices
547 * Returns
548 * D3D_OK on success, or DDERR_*
550 *****************************************************************************/
551 static HRESULT WINAPI
552 IDirect3DVertexBufferImpl_ProcessVerticesStrided(IDirect3DVertexBuffer7 *iface,
553 DWORD VertexOp,
554 DWORD DestIndex,
555 DWORD Count,
556 D3DDRAWPRIMITIVESTRIDEDDATA *StrideData,
557 DWORD VertexTypeDesc,
558 IDirect3DDevice7 *D3DDevice,
559 DWORD Flags)
561 IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
562 IDirect3DDeviceImpl *D3D = (IDirect3DDeviceImpl *)D3DDevice;
563 FIXME("(%p)->(%08x,%08x,%08x,%p,%08x,%p,%08x): stub!\n", This, VertexOp, DestIndex, Count, StrideData, VertexTypeDesc, D3D, Flags);
564 return DD_OK;
567 /*****************************************************************************
568 * The VTables
569 *****************************************************************************/
571 const IDirect3DVertexBuffer7Vtbl IDirect3DVertexBuffer7_Vtbl =
573 /*** IUnknown Methods ***/
574 IDirect3DVertexBufferImpl_QueryInterface,
575 IDirect3DVertexBufferImpl_AddRef,
576 IDirect3DVertexBufferImpl_Release,
577 /*** IDirect3DVertexBuffer Methods ***/
578 IDirect3DVertexBufferImpl_Lock,
579 IDirect3DVertexBufferImpl_Unlock,
580 IDirect3DVertexBufferImpl_ProcessVertices,
581 IDirect3DVertexBufferImpl_GetVertexBufferDesc,
582 IDirect3DVertexBufferImpl_Optimize,
583 /*** IDirect3DVertexBuffer7 Methods ***/
584 IDirect3DVertexBufferImpl_ProcessVerticesStrided
587 const IDirect3DVertexBufferVtbl IDirect3DVertexBuffer1_Vtbl =
589 /*** IUnknown Methods ***/
590 Thunk_IDirect3DVertexBufferImpl_1_QueryInterface,
591 Thunk_IDirect3DVertexBufferImpl_1_AddRef,
592 Thunk_IDirect3DVertexBufferImpl_1_Release,
593 /*** IDirect3DVertexBuffer Methods ***/
594 Thunk_IDirect3DVertexBufferImpl_1_Lock,
595 Thunk_IDirect3DVertexBufferImpl_1_Unlock,
596 Thunk_IDirect3DVertexBufferImpl_1_ProcessVertices,
597 Thunk_IDirect3DVertexBufferImpl_1_GetVertexBufferDesc,
598 Thunk_IDirect3DVertexBufferImpl_1_Optimize