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
 145          * as a parameter to drawPrimitiveVB. DrawPrimitiveVB sets them as the
 146          * stream source in wined3d, and they should get unset there before
 147          * they are destroyed. */
 148         wined3d_device_get_stream_source(This->ddraw->wined3d_device,
 149                 0, &curVB, &offset, &stride);
 150         if (curVB == This->wineD3DVertexBuffer)
 151             wined3d_device_set_stream_source(This->ddraw->wined3d_device, 0, NULL, 0, 0);
 152         if (curVB)
 153             wined3d_buffer_decref(curVB); /* For the GetStreamSource */
 154
 155         wined3d_vertex_declaration_decref(This->wineD3DVertexDeclaration);
 156         wined3d_buffer_decref(This->wineD3DVertexBuffer);
 157         LeaveCriticalSection(&ddraw_cs);
 158         HeapFree(GetProcessHeap(), 0, This);
 159
 160         return 0;
 161     }
 162     return ref;
 163 }
 164
 165 static ULONG WINAPI IDirect3DVertexBufferImpl_1_Release(IDirect3DVertexBuffer *iface)
 166 {
 167     TRACE("iface %p.\n", iface);
 168
 169     return IDirect3DVertexBuffer7_Release((IDirect3DVertexBuffer7 *)vb_from_vb1(iface));
 170 }
 171
 172 /*****************************************************************************
 173  * IDirect3DVertexBuffer Methods
 174  *****************************************************************************/
 175
 176 /*****************************************************************************
 177  * IDirect3DVertexBuffer7::Lock
 178  *
 179  * Locks the vertex buffer and returns a pointer to the vertex data
 180  * Locking vertex buffers is similar to locking surfaces, because Windows
 181  * uses surfaces to store vertex data internally (According to the DX sdk)
 182  *
 183  * Params:
 184  *  Flags: Locking flags. Relevant here are DDLOCK_READONLY, DDLOCK_WRITEONLY,
 185  *         DDLOCK_DISCARDCONTENTS and DDLOCK_NOOVERWRITE.
 186  *  Data:  Returns a pointer to the vertex data
 187  *  Size:  Returns the size of the buffer if not NULL
 188  *
 189  * Returns:
 190  *  D3D_OK on success
 191  *  DDERR_INVALIDPARAMS if Data is NULL
 192  *  D3DERR_VERTEXBUFFEROPTIMIZED if called on an optimized buffer(WineD3D)
 193  *
 194  *****************************************************************************/
 195 static HRESULT WINAPI
 196 IDirect3DVertexBufferImpl_Lock(IDirect3DVertexBuffer7 *iface,
 197                                DWORD Flags,
 198                                void **Data,
 199                                DWORD *Size)
 200 {
 201     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
 202     struct wined3d_resource_desc wined3d_desc;
 203     struct wined3d_resource *wined3d_resource;
 204     HRESULT hr;
 205     DWORD wined3d_flags = 0;
 206
 207     TRACE("iface %p, flags %#x, data %p, data_size %p.\n", iface, Flags, Data, Size);
 208
 209     /* Writeonly: Pointless. Event: Unsupported by native according to the sdk
 210      * nosyslock: Not applicable
 211      */
 212     if(!(Flags & DDLOCK_WAIT))          wined3d_flags |= WINED3DLOCK_DONOTWAIT;
 213     if(Flags & DDLOCK_READONLY)         wined3d_flags |= WINED3DLOCK_READONLY;
 214     if(Flags & DDLOCK_NOOVERWRITE)      wined3d_flags |= WINED3DLOCK_NOOVERWRITE;
 215     if(Flags & DDLOCK_DISCARDCONTENTS)  wined3d_flags |= WINED3DLOCK_DISCARD;
 216
 217     EnterCriticalSection(&ddraw_cs);
 218     if(Size)
 219     {
 220         /* Get the size, for returning it, and for locking */
 221         wined3d_resource = wined3d_buffer_get_resource(This->wineD3DVertexBuffer);
 222         wined3d_resource_get_desc(wined3d_resource, &wined3d_desc);
 223         *Size = wined3d_desc.size;
 224     }
 225
 226     hr = wined3d_buffer_map(This->wineD3DVertexBuffer, 0, 0, (BYTE **)Data, wined3d_flags);
 227     LeaveCriticalSection(&ddraw_cs);
 228     return hr;
 229 }
 230
 231 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Lock(IDirect3DVertexBuffer *iface, DWORD Flags,
 232         void **Data, DWORD *Size)
 233 {
 234     TRACE("iface %p, flags %#x, data %p, data_size %p.\n", iface, Flags, Data, Size);
 235
 236     return IDirect3DVertexBuffer7_Lock((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), Flags, Data, Size);
 237 }
 238
 239 /*****************************************************************************
 240  * IDirect3DVertexBuffer7::Unlock
 241  *
 242  * Unlocks a vertex Buffer
 243  *
 244  * Returns:
 245  *  D3D_OK on success
 246  *
 247  *****************************************************************************/
 248 static HRESULT WINAPI
 249 IDirect3DVertexBufferImpl_Unlock(IDirect3DVertexBuffer7 *iface)
 250 {
 251     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
 252
 253     TRACE("iface %p.\n", iface);
 254
 255     EnterCriticalSection(&ddraw_cs);
 256     wined3d_buffer_unmap(This->wineD3DVertexBuffer);
 257     LeaveCriticalSection(&ddraw_cs);
 258
 259     return D3D_OK;
 260 }
 261
 262 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Unlock(IDirect3DVertexBuffer *iface)
 263 {
 264     TRACE("iface %p.\n", iface);
 265
 266     return IDirect3DVertexBuffer7_Unlock((IDirect3DVertexBuffer7 *)vb_from_vb1(iface));
 267 }
 268
 269
 270 /*****************************************************************************
 271  * IDirect3DVertexBuffer7::ProcessVertices
 272  *
 273  * Processes untransformed Vertices into a transformed or optimized vertex
 274  * buffer. It can also perform other operations, such as lighting or clipping
 275  *
 276  * Params
 277  *  VertexOp: Operation(s) to perform: D3DVOP_CLIP, _EXTENTS, _LIGHT, _TRANSFORM
 278  *  DestIndex: Index in the destination buffer(This), where the vertices are
 279  *             placed
 280  *  Count: Number of Vertices in the Source buffer to process
 281  *  SrcBuffer: Source vertex buffer
 282  *  SrcIndex: Index of the first vertex in the src buffer to process
 283  *  D3DDevice: Device to use for transformation
 284  *  Flags: 0 for default, D3DPV_DONOTCOPYDATA to prevent copying
 285  *         unchaned vertices
 286  *
 287  * Returns:
 288  *  D3D_OK on success
 289  *  DDERR_INVALIDPARAMS If D3DVOP_TRANSFORM wasn't passed
 290  *
 291  *****************************************************************************/
 292 static HRESULT WINAPI
 293 IDirect3DVertexBufferImpl_ProcessVertices(IDirect3DVertexBuffer7 *iface,
 294                                           DWORD VertexOp,
 295                                           DWORD DestIndex,
 296                                           DWORD Count,
 297                                           IDirect3DVertexBuffer7 *SrcBuffer,
 298                                           DWORD SrcIndex,
 299                                           IDirect3DDevice7 *D3DDevice,
 300                                           DWORD Flags)
 301 {
 302     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
 303     IDirect3DVertexBufferImpl *Src = (IDirect3DVertexBufferImpl *)SrcBuffer;
 304     IDirect3DDeviceImpl *D3D = (IDirect3DDeviceImpl *)D3DDevice;
 305     BOOL oldClip, doClip;
 306     HRESULT hr;
 307
 308     TRACE("iface %p, vertex_op %#x, dst_idx %u, count %u, src_buffer %p, src_idx %u, device %p, flags %#x.\n",
 309             iface, VertexOp, DestIndex, Count, SrcBuffer, SrcIndex, D3DDevice, Flags);
 310
 311     /* Vertex operations:
 312      * D3DVOP_CLIP: Clips vertices outside the viewing frustrum. Needs clipping information
 313      * in the vertex buffer (Buffer may not be created with D3DVBCAPS_DONOTCLIP)
 314      * D3DVOP_EXTENTS: Causes the screen extents to be updated when rendering the vertices
 315      * D3DVOP_LIGHT: Lights the vertices
 316      * D3DVOP_TRANSFORM: Transform the vertices. This flag is necessary
 317      *
 318      * WineD3D only transforms and clips the vertices by now, so EXTENTS and LIGHT
 319      * are not implemented. Clipping is disabled ATM, because of unsure conditions.
 320      */
 321     if( !(VertexOp & D3DVOP_TRANSFORM) ) return DDERR_INVALIDPARAMS;
 322
 323     EnterCriticalSection(&ddraw_cs);
 324     /* WineD3D doesn't know d3d7 vertex operation, it uses
 325      * render states instead. Set the render states according to
 326      * the vertex ops
 327      */
 328     doClip = VertexOp & D3DVOP_CLIP ? TRUE : FALSE;
 329     wined3d_device_get_render_state(D3D->wined3d_device, WINED3DRS_CLIPPING, (DWORD *)&oldClip);
 330     if (doClip != oldClip)
 331         wined3d_device_set_render_state(D3D->wined3d_device, WINED3DRS_CLIPPING, doClip);
 332
 333     wined3d_device_set_stream_source(D3D->wined3d_device,
 334             0, Src->wineD3DVertexBuffer, 0, get_flexible_vertex_size(Src->fvf));
 335     wined3d_device_set_vertex_declaration(D3D->wined3d_device, Src->wineD3DVertexDeclaration);
 336     hr = wined3d_device_process_vertices(D3D->wined3d_device, SrcIndex, DestIndex,
 337             Count, This->wineD3DVertexBuffer, NULL, Flags, This->fvf);
 338
 339     /* Restore the states if needed */
 340     if (doClip != oldClip)
 341         wined3d_device_set_render_state(D3D->wined3d_device, WINED3DRS_CLIPPING, oldClip);
 342     LeaveCriticalSection(&ddraw_cs);
 343     return hr;
 344 }
 345
 346 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_ProcessVertices(IDirect3DVertexBuffer *iface,
 347         DWORD VertexOp, DWORD DestIndex, DWORD Count, IDirect3DVertexBuffer *SrcBuffer,
 348         DWORD SrcIndex, IDirect3DDevice3 *D3DDevice, DWORD Flags)
 349 {
 350     IDirect3DVertexBufferImpl *Src = SrcBuffer ? vb_from_vb1(SrcBuffer) : NULL;
 351     IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
 352
 353     TRACE("iface %p, vertex_op %#x, dst_idx %u, count %u, src_buffer %p, src_idx %u, device %p, flags %#x.\n",
 354             iface, VertexOp, DestIndex, Count, SrcBuffer, SrcIndex, D3DDevice, Flags);
 355
 356     return IDirect3DVertexBuffer7_ProcessVertices((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), VertexOp,
 357             DestIndex, Count, (IDirect3DVertexBuffer7 *)Src, SrcIndex, (IDirect3DDevice7 *)D3D, Flags);
 358 }
 359
 360 /*****************************************************************************
 361  * IDirect3DVertexBuffer7::GetVertexBufferDesc
 362  *
 363  * Returns the description of a vertex buffer
 364  *
 365  * Params:
 366  *  Desc: Address to write the description to
 367  *
 368  * Returns
 369  *  DDERR_INVALIDPARAMS if Desc is NULL
 370  *  D3D_OK on success
 371  *
 372  *****************************************************************************/
 373 static HRESULT WINAPI
 374 IDirect3DVertexBufferImpl_GetVertexBufferDesc(IDirect3DVertexBuffer7 *iface,
 375                                               D3DVERTEXBUFFERDESC *Desc)
 376 {
 377     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
 378     struct wined3d_resource_desc wined3d_desc;
 379     struct wined3d_resource *wined3d_resource;
 380
 381     TRACE("iface %p, desc %p.\n", iface, Desc);
 382
 383     if(!Desc) return DDERR_INVALIDPARAMS;
 384
 385     EnterCriticalSection(&ddraw_cs);
 386     wined3d_resource = wined3d_buffer_get_resource(This->wineD3DVertexBuffer);
 387     wined3d_resource_get_desc(wined3d_resource, &wined3d_desc);
 388     LeaveCriticalSection(&ddraw_cs);
 389
 390     /* Now fill the Desc structure */
 391     Desc->dwCaps = This->Caps;
 392     Desc->dwFVF = This->fvf;
 393     Desc->dwNumVertices = wined3d_desc.size / get_flexible_vertex_size(This->fvf);
 394
 395     return D3D_OK;
 396 }
 397
 398 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_GetVertexBufferDesc(IDirect3DVertexBuffer *iface,
 399         D3DVERTEXBUFFERDESC *Desc)
 400 {
 401     TRACE("iface %p, desc %p.\n", iface, Desc);
 402
 403     return IDirect3DVertexBuffer7_GetVertexBufferDesc((IDirect3DVertexBuffer7 *)vb_from_vb1(iface), Desc);
 404 }
 405
 406
 407 /*****************************************************************************
 408  * IDirect3DVertexBuffer7::Optimize
 409  *
 410  * Converts an unoptimized vertex buffer into an optimized buffer
 411  *
 412  * Params:
 413  *  D3DDevice: Device for which this buffer is optimized
 414  *  Flags: Not used, should be set to 0
 415  *
 416  * Returns
 417  *  D3D_OK, because it's a stub
 418  *
 419  *****************************************************************************/
 420 static HRESULT WINAPI
 421 IDirect3DVertexBufferImpl_Optimize(IDirect3DVertexBuffer7 *iface,
 422                                    IDirect3DDevice7 *D3DDevice,
 423                                    DWORD Flags)
 424 {
 425     IDirect3DVertexBufferImpl *This = (IDirect3DVertexBufferImpl *)iface;
 426     static BOOL hide = FALSE;
 427
 428     TRACE("iface %p, device %p, flags %#x.\n", iface, D3DDevice, Flags);
 429
 430     if (!hide)
 431     {
 432         FIXME("iface %p, device %p, flags %#x stub!\n", iface, D3DDevice, Flags);
 433         hide = TRUE;
 434     }
 435
 436     /* We could forward this call to WineD3D and take advantage
 437      * of it once we use OpenGL vertex buffers
 438      */
 439     EnterCriticalSection(&ddraw_cs);
 440     This->Caps |= D3DVBCAPS_OPTIMIZED;
 441     LeaveCriticalSection(&ddraw_cs);
 442
 443     return DD_OK;
 444 }
 445
 446 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Optimize(IDirect3DVertexBuffer *iface,
 447         IDirect3DDevice3 *D3DDevice, DWORD Flags)
 448 {
 449     IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
 450
 451     TRACE("iface %p, device %p, flags %#x.\n", iface, D3DDevice, Flags);
 452
 453     return IDirect3DVertexBuffer7_Optimize((IDirect3DVertexBuffer7 *)vb_from_vb1(iface),
 454             (IDirect3DDevice7 *)D3D, Flags);
 455 }
 456
 457 /*****************************************************************************
 458  * IDirect3DVertexBuffer7::ProcessVerticesStrided
 459  *
 460  * This method processes untransformed strided vertices into a processed
 461  * or optimized vertex buffer.
 462  *
 463  * For more details on the parameters, see
 464  * IDirect3DVertexBuffer7::ProcessVertices
 465  *
 466  * Params:
 467  *  VertexOp: Operations to perform
 468  *  DestIndex: Destination index to write the vertices to
 469  *  Count: Number of input vertices
 470  *  StrideData: Array containing the input vertices
 471  *  VertexTypeDesc: Vertex Description or source index?????????
 472  *  D3DDevice: IDirect3DDevice7 to use for processing
 473  *  Flags: Can be D3DPV_DONOTCOPYDATA to avoid copying unmodified vertices
 474  *
 475  * Returns
 476  *  D3D_OK on success, or DDERR_*
 477  *
 478  *****************************************************************************/
 479 static HRESULT WINAPI
 480 IDirect3DVertexBufferImpl_ProcessVerticesStrided(IDirect3DVertexBuffer7 *iface,
 481                                                  DWORD VertexOp,
 482                                                  DWORD DestIndex,
 483                                                  DWORD Count,
 484                                                  D3DDRAWPRIMITIVESTRIDEDDATA *StrideData,
 485                                                  DWORD VertexTypeDesc,
 486                                                  IDirect3DDevice7 *D3DDevice,
 487                                                  DWORD Flags)
 488 {
 489     FIXME("iface %p, vertex_op %#x, dst_idx %u, count %u, data %p, vertex_type %#x, device %p, flags %#x stub!\n",
 490             iface, VertexOp, DestIndex, Count, StrideData, VertexTypeDesc, D3DDevice, Flags);
 491
 492     return DD_OK;
 493 }
 494
 495 /*****************************************************************************
 496  * The VTables
 497  *****************************************************************************/
 498
 499 static const struct IDirect3DVertexBuffer7Vtbl d3d_vertex_buffer7_vtbl =
 500 {
 501     /*** IUnknown Methods ***/
 502     IDirect3DVertexBufferImpl_QueryInterface,
 503     IDirect3DVertexBufferImpl_AddRef,
 504     IDirect3DVertexBufferImpl_Release,
 505     /*** IDirect3DVertexBuffer Methods ***/
 506     IDirect3DVertexBufferImpl_Lock,
 507     IDirect3DVertexBufferImpl_Unlock,
 508     IDirect3DVertexBufferImpl_ProcessVertices,
 509     IDirect3DVertexBufferImpl_GetVertexBufferDesc,
 510     IDirect3DVertexBufferImpl_Optimize,
 511     /*** IDirect3DVertexBuffer7 Methods ***/
 512     IDirect3DVertexBufferImpl_ProcessVerticesStrided
 513 };
 514
 515 static const struct IDirect3DVertexBufferVtbl d3d_vertex_buffer1_vtbl =
 516 {
 517     /*** IUnknown Methods ***/
 518     IDirect3DVertexBufferImpl_1_QueryInterface,
 519     IDirect3DVertexBufferImpl_1_AddRef,
 520     IDirect3DVertexBufferImpl_1_Release,
 521     /*** IDirect3DVertexBuffer Methods ***/
 522     IDirect3DVertexBufferImpl_1_Lock,
 523     IDirect3DVertexBufferImpl_1_Unlock,
 524     IDirect3DVertexBufferImpl_1_ProcessVertices,
 525     IDirect3DVertexBufferImpl_1_GetVertexBufferDesc,
 526     IDirect3DVertexBufferImpl_1_Optimize
 527 };
 528
 529 HRESULT d3d_vertex_buffer_init(IDirect3DVertexBufferImpl *buffer,
 530         IDirectDrawImpl *ddraw, D3DVERTEXBUFFERDESC *desc)
 531 {
 532     DWORD usage;
 533     HRESULT hr;
 534
 535     buffer->lpVtbl = &d3d_vertex_buffer7_vtbl;
 536     buffer->IDirect3DVertexBuffer_vtbl = &d3d_vertex_buffer1_vtbl;
 537     buffer->ref = 1;
 538
 539     buffer->ddraw = ddraw;
 540     buffer->Caps = desc->dwCaps;
 541     buffer->fvf = desc->dwFVF;
 542
 543     usage = desc->dwCaps & D3DVBCAPS_WRITEONLY ? WINED3DUSAGE_WRITEONLY : 0;
 544     usage |= WINED3DUSAGE_STATICDECL;
 545
 546     EnterCriticalSection(&ddraw_cs);
 547
 548     hr = wined3d_buffer_create_vb(ddraw->wined3d_device,
 549             get_flexible_vertex_size(desc->dwFVF) * desc->dwNumVertices,
 550             usage, desc->dwCaps & D3DVBCAPS_SYSTEMMEMORY ? WINED3DPOOL_SYSTEMMEM : WINED3DPOOL_DEFAULT,
 551             buffer, &ddraw_null_wined3d_parent_ops, &buffer->wineD3DVertexBuffer);
 552     if (FAILED(hr))
 553     {
 554         WARN("Failed to create wined3d vertex buffer, hr %#x.\n", hr);
 555         LeaveCriticalSection(&ddraw_cs);
 556
 557         if (hr == WINED3DERR_INVALIDCALL)
 558             return DDERR_INVALIDPARAMS;
 559         else
 560             return hr;
 561     }
 562
 563     buffer->wineD3DVertexDeclaration = ddraw_find_decl(ddraw, desc->dwFVF);
 564     if (!buffer->wineD3DVertexDeclaration)
 565     {
 566         ERR("Failed to find vertex declaration for fvf %#x.\n", desc->dwFVF);
 567         wined3d_buffer_decref(buffer->wineD3DVertexBuffer);
 568         LeaveCriticalSection(&ddraw_cs);
 569
 570         return DDERR_INVALIDPARAMS;
 571     }
 572     wined3d_vertex_declaration_incref(buffer->wineD3DVertexDeclaration);
 573
 574     LeaveCriticalSection(&ddraw_cs);
 575
 576     return D3D_OK;
 577 }