git.oblomov.eu Git - wine/blob - dlls/wined3d/query.c

   1 /*
   2  * IWineD3DQuery implementation
   3  *
   4  * Copyright 2005 Oliver Stieber
   5  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
   6  * Copyright 2009 Henri Verbeet for CodeWeavers.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23
  24 #include "config.h"
  25 #include "wined3d_private.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  28 #define GLINFO_LOCATION (*gl_info)
  29
  30 static HRESULT wined3d_event_query_init(const struct wined3d_gl_info *gl_info, struct wined3d_event_query **query)
  31 {
  32     struct wined3d_event_query *ret;
  33     *query = NULL;
  34     if (!gl_info->supported[ARB_SYNC] && !gl_info->supported[NV_FENCE]
  35         && !gl_info->supported[APPLE_FENCE]) return E_NOTIMPL;
  36
  37     ret = HeapAlloc(GetProcessHeap(), 0, sizeof(*ret));
  38     if (!ret)
  39     {
  40         ERR("Failed to allocate a wined3d event query structure.\n");
  41         return E_OUTOFMEMORY;
  42     }
  43     ret->context = NULL;
  44     *query = ret;
  45     return WINED3D_OK;
  46 }
  47
  48 static void wined3d_event_query_destroy(struct wined3d_event_query *query)
  49 {
  50     if (query->context) context_free_event_query(query);
  51     HeapFree(GetProcessHeap(), 0, query);
  52 }
  53
  54 static enum wined3d_event_query_result wined3d_event_query_test(struct wined3d_event_query *query, IWineD3DDeviceImpl *device)
  55 {
  56     struct wined3d_context *context;
  57     const struct wined3d_gl_info *gl_info;
  58     enum wined3d_event_query_result ret;
  59     BOOL fence_result;
  60
  61     TRACE("(%p) : device %p\n", query, device);
  62
  63     if (query->context == NULL)
  64     {
  65         TRACE("Query not started\n");
  66         return WINED3D_EVENT_QUERY_NOT_STARTED;
  67     }
  68
  69     if (!query->context->gl_info->supported[ARB_SYNC] && query->context->tid != GetCurrentThreadId())
  70     {
  71         WARN("Event query tested from wrong thread\n");
  72         return WINED3D_EVENT_QUERY_WRONG_THREAD;
  73     }
  74
  75     context = context_acquire(device, query->context->current_rt, CTXUSAGE_RESOURCELOAD);
  76     gl_info = context->gl_info;
  77
  78     ENTER_GL();
  79
  80     if (gl_info->supported[ARB_SYNC])
  81     {
  82         GLenum gl_ret = GL_EXTCALL(glClientWaitSync(query->object.sync, 0, 0));
  83         checkGLcall("glClientWaitSync");
  84
  85         switch (gl_ret)
  86         {
  87             case GL_ALREADY_SIGNALED:
  88             case GL_CONDITION_SATISFIED:
  89                 ret = WINED3D_EVENT_QUERY_OK;
  90                 break;
  91
  92             case GL_TIMEOUT_EXPIRED:
  93                 ret = WINED3D_EVENT_QUERY_WAITING;
  94                 break;
  95
  96             case GL_WAIT_FAILED:
  97             default:
  98                 ERR("glClientWaitSync returned %#x.\n", gl_ret);
  99                 ret = WINED3D_EVENT_QUERY_ERROR;
 100         }
 101     }
 102     else if (gl_info->supported[APPLE_FENCE])
 103     {
 104         fence_result = GL_EXTCALL(glTestFenceAPPLE(query->object.id));
 105         checkGLcall("glTestFenceAPPLE");
 106         if (fence_result) ret = WINED3D_EVENT_QUERY_OK;
 107         else ret = WINED3D_EVENT_QUERY_WAITING;
 108     }
 109     else if (gl_info->supported[NV_FENCE])
 110     {
 111         fence_result = GL_EXTCALL(glTestFenceNV(query->object.id));
 112         checkGLcall("glTestFenceNV");
 113         if (fence_result) ret = WINED3D_EVENT_QUERY_OK;
 114         else ret = WINED3D_EVENT_QUERY_WAITING;
 115     }
 116     else
 117     {
 118         ERR("Event query created despite lack of GL support\n");
 119         ret = WINED3D_EVENT_QUERY_ERROR;
 120     }
 121
 122     LEAVE_GL();
 123
 124     context_release(context);
 125     return ret;
 126 }
 127
 128 static void wined3d_event_query_issue(struct wined3d_event_query *query, IWineD3DDeviceImpl *device)
 129 {
 130     const struct wined3d_gl_info *gl_info;
 131     struct wined3d_context *context;
 132
 133     if (query->context)
 134     {
 135         if (!query->context->gl_info->supported[ARB_SYNC] && query->context->tid != GetCurrentThreadId())
 136         {
 137             context_free_event_query(query);
 138             context = context_acquire(device, NULL, CTXUSAGE_RESOURCELOAD);
 139             context_alloc_event_query(context, query);
 140         }
 141         else
 142         {
 143             context = context_acquire(device, query->context->current_rt, CTXUSAGE_RESOURCELOAD);
 144         }
 145     }
 146     else
 147     {
 148         context = context_acquire(device, NULL, CTXUSAGE_RESOURCELOAD);
 149         context_alloc_event_query(context, query);
 150     }
 151
 152     gl_info = context->gl_info;
 153
 154     ENTER_GL();
 155
 156     if (gl_info->supported[ARB_SYNC])
 157     {
 158         if (query->object.sync) GL_EXTCALL(glDeleteSync(query->object.sync));
 159         checkGLcall("glDeleteSync");
 160         query->object.sync = GL_EXTCALL(glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0));
 161         checkGLcall("glFenceSync");
 162     }
 163     else if (gl_info->supported[APPLE_FENCE])
 164     {
 165         GL_EXTCALL(glSetFenceAPPLE(query->object.id));
 166         checkGLcall("glSetFenceAPPLE");
 167     }
 168     else if (gl_info->supported[NV_FENCE])
 169     {
 170         GL_EXTCALL(glSetFenceNV(query->object.id, GL_ALL_COMPLETED_NV));
 171         checkGLcall("glSetFenceNV");
 172     }
 173
 174     LEAVE_GL();
 175
 176     context_release(context);
 177 }
 178
 179 /*
 180  * Occlusion Queries:
 181  * http://www.gris.uni-tuebingen.de/~bartz/Publications/paper/hww98.pdf
 182  * http://oss.sgi.com/projects/ogl-sample/registry/ARB/occlusion_query.txt
 183  */
 184
 185 /* *******************************************
 186    IWineD3DQuery IUnknown parts follow
 187    ******************************************* */
 188 static HRESULT  WINAPI IWineD3DQueryImpl_QueryInterface(IWineD3DQuery *iface, REFIID riid, LPVOID *ppobj)
 189 {
 190     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *)iface;
 191     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
 192     if (IsEqualGUID(riid, &IID_IUnknown)
 193         || IsEqualGUID(riid, &IID_IWineD3DBase)
 194         || IsEqualGUID(riid, &IID_IWineD3DQuery)) {
 195         IUnknown_AddRef(iface);
 196         *ppobj = This;
 197         return S_OK;
 198     }
 199     *ppobj = NULL;
 200     return E_NOINTERFACE;
 201 }
 202
 203 static ULONG  WINAPI IWineD3DQueryImpl_AddRef(IWineD3DQuery *iface) {
 204     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *)iface;
 205     TRACE("(%p) : AddRef increasing from %d\n", This, This->ref);
 206     return InterlockedIncrement(&This->ref);
 207 }
 208
 209 static ULONG  WINAPI IWineD3DQueryImpl_Release(IWineD3DQuery *iface) {
 210     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *)iface;
 211     ULONG ref;
 212     TRACE("(%p) : Releasing from %d\n", This, This->ref);
 213     ref = InterlockedDecrement(&This->ref);
 214     if (ref == 0) {
 215         /* Queries are specific to the GL context that created them. Not
 216          * deleting the query will obviously leak it, but that's still better
 217          * than potentially deleting a different query with the same id in this
 218          * context, and (still) leaking the actual query. */
 219         if (This->type == WINED3DQUERYTYPE_EVENT)
 220         {
 221             struct wined3d_event_query *query = This->extendedData;
 222             if (query) wined3d_event_query_destroy(query);
 223         }
 224         else if (This->type == WINED3DQUERYTYPE_OCCLUSION)
 225         {
 226             struct wined3d_occlusion_query *query = This->extendedData;
 227
 228             if (query->context) context_free_occlusion_query(query);
 229             HeapFree(GetProcessHeap(), 0, This->extendedData);
 230         }
 231
 232         HeapFree(GetProcessHeap(), 0, This);
 233     }
 234     return ref;
 235 }
 236
 237 /* *******************************************
 238    IWineD3DQuery IWineD3DQuery parts follow
 239    ******************************************* */
 240 static HRESULT WINAPI IWineD3DQueryImpl_GetParent(IWineD3DQuery *iface, IUnknown **parent)
 241 {
 242     TRACE("iface %p, parent %p.\n", iface, parent);
 243
 244     *parent = (IUnknown *)parent;
 245     IUnknown_AddRef(*parent);
 246
 247     TRACE("Returning %p.\n", *parent);
 248
 249     return WINED3D_OK;
 250 }
 251
 252 static HRESULT  WINAPI IWineD3DOcclusionQueryImpl_GetData(IWineD3DQuery* iface, void* pData, DWORD dwSize, DWORD dwGetDataFlags) {
 253     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *) iface;
 254     struct wined3d_occlusion_query *query = This->extendedData;
 255     IWineD3DDeviceImpl *device = This->device;
 256     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 257     struct wined3d_context *context;
 258     DWORD* data = pData;
 259     GLuint available;
 260     GLuint samples;
 261     HRESULT res;
 262
 263     TRACE("(%p) : type D3DQUERY_OCCLUSION, pData %p, dwSize %#x, dwGetDataFlags %#x\n", This, pData, dwSize, dwGetDataFlags);
 264
 265     if (!query->context) This->state = QUERY_CREATED;
 266
 267     if (This->state == QUERY_CREATED)
 268     {
 269         /* D3D allows GetData on a new query, OpenGL doesn't. So just invent the data ourselves */
 270         TRACE("Query wasn't yet started, returning S_OK\n");
 271         if(data) *data = 0;
 272         return S_OK;
 273     }
 274
 275     if (This->state == QUERY_BUILDING)
 276     {
 277         /* Msdn says this returns an error, but our tests show that S_FALSE is returned */
 278         TRACE("Query is building, returning S_FALSE\n");
 279         return S_FALSE;
 280     }
 281
 282     if (!gl_info->supported[ARB_OCCLUSION_QUERY])
 283     {
 284         WARN("(%p) : Occlusion queries not supported. Returning 1.\n", This);
 285         *data = 1;
 286         return S_OK;
 287     }
 288
 289     if (query->context->tid != GetCurrentThreadId())
 290     {
 291         FIXME("%p Wrong thread, returning 1.\n", This);
 292         *data = 1;
 293         return S_OK;
 294     }
 295
 296     context = context_acquire(This->device, query->context->current_rt, CTXUSAGE_RESOURCELOAD);
 297
 298     ENTER_GL();
 299
 300     GL_EXTCALL(glGetQueryObjectuivARB(query->id, GL_QUERY_RESULT_AVAILABLE_ARB, &available));
 301     checkGLcall("glGetQueryObjectuivARB(GL_QUERY_RESULT_AVAILABLE)");
 302     TRACE("(%p) : available %d.\n", This, available);
 303
 304     if (available)
 305     {
 306         if (data)
 307         {
 308             GL_EXTCALL(glGetQueryObjectuivARB(query->id, GL_QUERY_RESULT_ARB, &samples));
 309             checkGLcall("glGetQueryObjectuivARB(GL_QUERY_RESULT)");
 310             TRACE("(%p) : Returning %d samples.\n", This, samples);
 311             *data = samples;
 312         }
 313         res = S_OK;
 314     }
 315     else
 316     {
 317         res = S_FALSE;
 318     }
 319
 320     LEAVE_GL();
 321
 322     context_release(context);
 323
 324     return res;
 325 }
 326
 327 static HRESULT  WINAPI IWineD3DEventQueryImpl_GetData(IWineD3DQuery* iface, void* pData, DWORD dwSize, DWORD dwGetDataFlags) {
 328     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *) iface;
 329     struct wined3d_event_query *query = This->extendedData;
 330     BOOL *data = pData;
 331     enum wined3d_event_query_result ret;
 332
 333     TRACE("(%p) : type D3DQUERY_EVENT, pData %p, dwSize %#x, dwGetDataFlags %#x\n", This, pData, dwSize, dwGetDataFlags);
 334
 335     if (!pData || !dwSize) return S_OK;
 336     if (!query)
 337     {
 338         WARN("(%p): Event query not supported by GL, reporting GPU idle\n", This);
 339         *data = TRUE;
 340         return S_OK;
 341     }
 342
 343     ret = wined3d_event_query_test(query, This->device);
 344     switch(ret)
 345     {
 346         case WINED3D_EVENT_QUERY_OK:
 347         case WINED3D_EVENT_QUERY_NOT_STARTED:
 348             *data = TRUE;
 349             break;
 350
 351         case WINED3D_EVENT_QUERY_WAITING:
 352             *data = FALSE;
 353             break;
 354
 355         case WINED3D_EVENT_QUERY_WRONG_THREAD:
 356             FIXME("(%p) Wrong thread, reporting GPU idle.\n", This);
 357             *data = TRUE;
 358             break;
 359
 360         case WINED3D_EVENT_QUERY_ERROR:
 361             ERR("The GL event query failed, returning D3DERR_INVALIDCALL\n");
 362             return WINED3DERR_INVALIDCALL;
 363     }
 364
 365     return S_OK;
 366 }
 367
 368 static DWORD  WINAPI IWineD3DEventQueryImpl_GetDataSize(IWineD3DQuery* iface){
 369     TRACE("(%p) : type D3DQUERY_EVENT\n", iface);
 370
 371     return sizeof(BOOL);
 372 }
 373
 374 static DWORD  WINAPI IWineD3DOcclusionQueryImpl_GetDataSize(IWineD3DQuery* iface){
 375     TRACE("(%p) : type D3DQUERY_OCCLUSION\n", iface);
 376
 377     return sizeof(DWORD);
 378 }
 379
 380 static WINED3DQUERYTYPE  WINAPI IWineD3DQueryImpl_GetType(IWineD3DQuery* iface){
 381     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *)iface;
 382     return This->type;
 383 }
 384
 385 static HRESULT  WINAPI IWineD3DEventQueryImpl_Issue(IWineD3DQuery* iface,  DWORD dwIssueFlags) {
 386     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *)iface;
 387
 388     TRACE("(%p) : dwIssueFlags %#x, type D3DQUERY_EVENT\n", This, dwIssueFlags);
 389     if (dwIssueFlags & WINED3DISSUE_END)
 390     {
 391         struct wined3d_event_query *query = This->extendedData;
 392
 393         /* Faked event query support */
 394         if (!query) return WINED3D_OK;
 395
 396         wined3d_event_query_issue(query, This->device);
 397     }
 398     else if(dwIssueFlags & WINED3DISSUE_BEGIN)
 399     {
 400         /* Started implicitly at device creation */
 401         ERR("Event query issued with START flag - what to do?\n");
 402     }
 403
 404     if(dwIssueFlags & WINED3DISSUE_BEGIN) {
 405         This->state = QUERY_BUILDING;
 406     } else {
 407         This->state = QUERY_SIGNALLED;
 408     }
 409
 410     return WINED3D_OK;
 411 }
 412
 413 static HRESULT  WINAPI IWineD3DOcclusionQueryImpl_Issue(IWineD3DQuery* iface,  DWORD dwIssueFlags) {
 414     IWineD3DQueryImpl *This = (IWineD3DQueryImpl *)iface;
 415     IWineD3DDeviceImpl *device = This->device;
 416     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 417
 418     if (gl_info->supported[ARB_OCCLUSION_QUERY])
 419     {
 420         struct wined3d_occlusion_query *query = This->extendedData;
 421         struct wined3d_context *context;
 422
 423         /* This is allowed according to msdn and our tests. Reset the query and restart */
 424         if (dwIssueFlags & WINED3DISSUE_BEGIN)
 425         {
 426             if (This->state == QUERY_BUILDING)
 427             {
 428                 if (query->context->tid != GetCurrentThreadId())
 429                 {
 430                     FIXME("Wrong thread, can't restart query.\n");
 431
 432                     context_free_occlusion_query(query);
 433                     context = context_acquire(This->device, NULL, CTXUSAGE_RESOURCELOAD);
 434                     context_alloc_occlusion_query(context, query);
 435                 }
 436                 else
 437                 {
 438                     context = context_acquire(This->device, query->context->current_rt, CTXUSAGE_RESOURCELOAD);
 439
 440                     ENTER_GL();
 441                     GL_EXTCALL(glEndQueryARB(GL_SAMPLES_PASSED_ARB));
 442                     checkGLcall("glEndQuery()");
 443                     LEAVE_GL();
 444                 }
 445             }
 446             else
 447             {
 448                 if (query->context) context_free_occlusion_query(query);
 449                 context = context_acquire(This->device, NULL, CTXUSAGE_RESOURCELOAD);
 450                 context_alloc_occlusion_query(context, query);
 451             }
 452
 453             ENTER_GL();
 454             GL_EXTCALL(glBeginQueryARB(GL_SAMPLES_PASSED_ARB, query->id));
 455             checkGLcall("glBeginQuery()");
 456             LEAVE_GL();
 457
 458             context_release(context);
 459         }
 460         if (dwIssueFlags & WINED3DISSUE_END) {
 461             /* Msdn says _END on a non-building occlusion query returns an error, but
 462              * our tests show that it returns OK. But OpenGL doesn't like it, so avoid
 463              * generating an error
 464              */
 465             if (This->state == QUERY_BUILDING)
 466             {
 467                 if (query->context->tid != GetCurrentThreadId())
 468                 {
 469                     FIXME("Wrong thread, can't end query.\n");
 470                 }
 471                 else
 472                 {
 473                     context = context_acquire(This->device, query->context->current_rt, CTXUSAGE_RESOURCELOAD);
 474
 475                     ENTER_GL();
 476                     GL_EXTCALL(glEndQueryARB(GL_SAMPLES_PASSED_ARB));
 477                     checkGLcall("glEndQuery()");
 478                     LEAVE_GL();
 479
 480                     context_release(context);
 481                 }
 482             }
 483         }
 484     } else {
 485         FIXME("(%p) : Occlusion queries not supported\n", This);
 486     }
 487
 488     if(dwIssueFlags & WINED3DISSUE_BEGIN) {
 489         This->state = QUERY_BUILDING;
 490     } else {
 491         This->state = QUERY_SIGNALLED;
 492     }
 493     return WINED3D_OK; /* can be WINED3DERR_INVALIDCALL.    */
 494 }
 495
 496 static const IWineD3DQueryVtbl IWineD3DEventQuery_Vtbl =
 497 {
 498     /*** IUnknown methods ***/
 499     IWineD3DQueryImpl_QueryInterface,
 500     IWineD3DQueryImpl_AddRef,
 501     IWineD3DQueryImpl_Release,
 502     /*** IWineD3Dquery methods ***/
 503     IWineD3DQueryImpl_GetParent,
 504     IWineD3DEventQueryImpl_GetData,
 505     IWineD3DEventQueryImpl_GetDataSize,
 506     IWineD3DQueryImpl_GetType,
 507     IWineD3DEventQueryImpl_Issue
 508 };
 509
 510 static const IWineD3DQueryVtbl IWineD3DOcclusionQuery_Vtbl =
 511 {
 512     /*** IUnknown methods ***/
 513     IWineD3DQueryImpl_QueryInterface,
 514     IWineD3DQueryImpl_AddRef,
 515     IWineD3DQueryImpl_Release,
 516     /*** IWineD3Dquery methods ***/
 517     IWineD3DQueryImpl_GetParent,
 518     IWineD3DOcclusionQueryImpl_GetData,
 519     IWineD3DOcclusionQueryImpl_GetDataSize,
 520     IWineD3DQueryImpl_GetType,
 521     IWineD3DOcclusionQueryImpl_Issue
 522 };
 523
 524 HRESULT query_init(IWineD3DQueryImpl *query, IWineD3DDeviceImpl *device,
 525         WINED3DQUERYTYPE type, IUnknown *parent)
 526 {
 527     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 528     HRESULT hr;
 529
 530     switch (type)
 531     {
 532         case WINED3DQUERYTYPE_OCCLUSION:
 533             TRACE("Occlusion query.\n");
 534             if (!gl_info->supported[ARB_OCCLUSION_QUERY])
 535             {
 536                 WARN("Unsupported in local OpenGL implementation: ARB_OCCLUSION_QUERY.\n");
 537                 return WINED3DERR_NOTAVAILABLE;
 538             }
 539             query->lpVtbl = &IWineD3DOcclusionQuery_Vtbl;
 540             query->extendedData = HeapAlloc(GetProcessHeap(), 0, sizeof(struct wined3d_occlusion_query));
 541             if (!query->extendedData)
 542             {
 543                 ERR("Failed to allocate occlusion query extended data.\n");
 544                 return E_OUTOFMEMORY;
 545             }
 546             ((struct wined3d_occlusion_query *)query->extendedData)->context = NULL;
 547             break;
 548
 549         case WINED3DQUERYTYPE_EVENT:
 550             TRACE("Event query.\n");
 551             query->lpVtbl = &IWineD3DEventQuery_Vtbl;
 552             hr = wined3d_event_query_init(gl_info, (struct wined3d_event_query **) &query->extendedData);
 553             if (hr == E_NOTIMPL)
 554             {
 555                 /* Half-Life 2 needs this query. It does not render the main
 556                  * menu correctly otherwise. Pretend to support it, faking
 557                  * this query does not do much harm except potentially
 558                  * lowering performance. */
 559                 FIXME("Event query: Unimplemented, but pretending to be supported.\n");
 560             }
 561             else if(FAILED(hr))
 562             {
 563                 return hr;
 564             }
 565             break;
 566
 567         case WINED3DQUERYTYPE_VCACHE:
 568         case WINED3DQUERYTYPE_RESOURCEMANAGER:
 569         case WINED3DQUERYTYPE_VERTEXSTATS:
 570         case WINED3DQUERYTYPE_TIMESTAMP:
 571         case WINED3DQUERYTYPE_TIMESTAMPDISJOINT:
 572         case WINED3DQUERYTYPE_TIMESTAMPFREQ:
 573         case WINED3DQUERYTYPE_PIPELINETIMINGS:
 574         case WINED3DQUERYTYPE_INTERFACETIMINGS:
 575         case WINED3DQUERYTYPE_VERTEXTIMINGS:
 576         case WINED3DQUERYTYPE_PIXELTIMINGS:
 577         case WINED3DQUERYTYPE_BANDWIDTHTIMINGS:
 578         case WINED3DQUERYTYPE_CACHEUTILIZATION:
 579         default:
 580             FIXME("Unhandled query type %#x.\n", type);
 581             return WINED3DERR_NOTAVAILABLE;
 582     }
 583
 584     query->type = type;
 585     query->state = QUERY_CREATED;
 586     query->device = device;
 587     query->parent = parent;
 588     query->ref = 1;
 589
 590     return WINED3D_OK;
 591 }