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   1 /*        DirectDraw Base Functions
   2  *
   3  * Copyright 1997-1999 Marcus Meissner
   4  * Copyright 1998 Lionel Ulmer
   5  * Copyright 2000-2001 TransGaming Technologies Inc.
   6  * Copyright 2006 Stefan Dösinger
   7  * Copyright 2008 Denver Gingerich
   8  *
   9  * This file contains the (internal) driver registration functions,
  10  * driver enumeration APIs and DirectDraw creation functions.
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  25  */
  26
  27 #include "config.h"
  28 #include "wine/port.h"
  29
  30 #define DDRAW_INIT_GUID
  31 #include "ddraw_private.h"
  32 #include "rpcproxy.h"
  33
  34 #include "wine/exception.h"
  35 #include "winreg.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  38
  39 /* The configured default surface */
  40 WINED3DSURFTYPE DefaultSurfaceType = SURFACE_OPENGL;
  41
  42 static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
  43
  44 static HINSTANCE instance;
  45
  46 /* value of ForceRefreshRate */
  47 DWORD force_refresh_rate = 0;
  48
  49 /* Handle table functions */
  50 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
  51 {
  52     t->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, initial_size * sizeof(*t->entries));
  53     if (!t->entries)
  54     {
  55         ERR("Failed to allocate handle table memory.\n");
  56         return FALSE;
  57     }
  58     t->free_entries = NULL;
  59     t->table_size = initial_size;
  60     t->entry_count = 0;
  61
  62     return TRUE;
  63 }
  64
  65 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
  66 {
  67     HeapFree(GetProcessHeap(), 0, t->entries);
  68     memset(t, 0, sizeof(*t));
  69 }
  70
  71 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
  72 {
  73     struct ddraw_handle_entry *entry;
  74
  75     if (t->free_entries)
  76     {
  77         DWORD idx = t->free_entries - t->entries;
  78         /* Use a free handle */
  79         entry = t->free_entries;
  80         if (entry->type != DDRAW_HANDLE_FREE)
  81         {
  82             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
  83             return DDRAW_INVALID_HANDLE;
  84         }
  85         t->free_entries = entry->object;
  86         entry->object = object;
  87         entry->type = type;
  88
  89         return idx;
  90     }
  91
  92     if (!(t->entry_count < t->table_size))
  93     {
  94         /* Grow the table */
  95         UINT new_size = t->table_size + (t->table_size >> 1);
  96         struct ddraw_handle_entry *new_entries = HeapReAlloc(GetProcessHeap(),
  97                 0, t->entries, new_size * sizeof(*t->entries));
  98         if (!new_entries)
  99         {
 100             ERR("Failed to grow the handle table.\n");
 101             return DDRAW_INVALID_HANDLE;
 102         }
 103         t->entries = new_entries;
 104         t->table_size = new_size;
 105     }
 106
 107     entry = &t->entries[t->entry_count];
 108     entry->object = object;
 109     entry->type = type;
 110
 111     return t->entry_count++;
 112 }
 113
 114 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 115 {
 116     struct ddraw_handle_entry *entry;
 117     void *object;
 118
 119     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 120     {
 121         WARN("Invalid handle %#x passed.\n", handle);
 122         return NULL;
 123     }
 124
 125     entry = &t->entries[handle];
 126     if (entry->type != type)
 127     {
 128         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 129         return NULL;
 130     }
 131
 132     object = entry->object;
 133     entry->object = t->free_entries;
 134     entry->type = DDRAW_HANDLE_FREE;
 135     t->free_entries = entry;
 136
 137     return object;
 138 }
 139
 140 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 141 {
 142     struct ddraw_handle_entry *entry;
 143
 144     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 145     {
 146         WARN("Invalid handle %#x passed.\n", handle);
 147         return NULL;
 148     }
 149
 150     entry = &t->entries[handle];
 151     if (entry->type != type)
 152     {
 153         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 154         return NULL;
 155     }
 156
 157     return entry->object;
 158 }
 159
 160 /***********************************************************************
 161  *
 162  * Helper function for DirectDrawCreate and friends
 163  * Creates a new DDraw interface with the given REFIID
 164  *
 165  * Interfaces that can be created:
 166  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
 167  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
 168  *  IDirect3D interfaces?)
 169  *
 170  * Arguments:
 171  *  guid: ID of the requested driver, NULL for the default driver.
 172  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
 173  *  DD: Used to return the pointer to the created object
 174  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
 175  *  iid: requested version ID.
 176  *
 177  * Returns:
 178  *  DD_OK if the Interface was created successfully
 179  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
 180  *  E_OUTOFMEMORY if some allocation failed
 181  *
 182  ***********************************************************************/
 183 static HRESULT
 184 DDRAW_Create(const GUID *guid,
 185              void **DD,
 186              IUnknown *UnkOuter,
 187              REFIID iid)
 188 {
 189     WINED3DDEVTYPE devicetype;
 190     IDirectDrawImpl *This;
 191     HRESULT hr;
 192
 193     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
 194             debugstr_guid(guid), DD, UnkOuter, debugstr_guid(iid));
 195
 196     *DD = NULL;
 197
 198     /* We don't care about this guids. Well, there's no special guid anyway
 199      * OK, we could
 200      */
 201     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
 202     {
 203         /* Use the reference device id. This doesn't actually change anything,
 204          * WineD3D always uses OpenGL for D3D rendering. One could make it request
 205          * indirect rendering
 206          */
 207         devicetype = WINED3DDEVTYPE_REF;
 208     }
 209     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
 210     {
 211         devicetype = WINED3DDEVTYPE_HAL;
 212     }
 213     else
 214     {
 215         devicetype = 0;
 216     }
 217
 218     /* DDraw doesn't support aggregation, according to msdn */
 219     if (UnkOuter != NULL)
 220         return CLASS_E_NOAGGREGATION;
 221
 222     /* DirectDraw creation comes here */
 223     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectDrawImpl));
 224     if(!This)
 225     {
 226         ERR("Out of memory when creating DirectDraw\n");
 227         return E_OUTOFMEMORY;
 228     }
 229
 230     hr = ddraw_init(This, devicetype);
 231     if (FAILED(hr))
 232     {
 233         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 234         HeapFree(GetProcessHeap(), 0, This);
 235         return hr;
 236     }
 237
 238     hr = IDirectDraw7_QueryInterface(&This->IDirectDraw7_iface, iid, DD);
 239     IDirectDraw7_Release(&This->IDirectDraw7_iface);
 240     if (SUCCEEDED(hr)) list_add_head(&global_ddraw_list, &This->ddraw_list_entry);
 241     else WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), This);
 242
 243     return hr;
 244 }
 245
 246 /***********************************************************************
 247  * DirectDrawCreate (DDRAW.@)
 248  *
 249  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 250  * interfaces in theory
 251  *
 252  * Arguments, return values: See DDRAW_Create
 253  *
 254  ***********************************************************************/
 255 HRESULT WINAPI DECLSPEC_HOTPATCH
 256 DirectDrawCreate(GUID *GUID,
 257                  LPDIRECTDRAW *DD,
 258                  IUnknown *UnkOuter)
 259 {
 260     HRESULT hr;
 261
 262     TRACE("driver_guid %s, ddraw %p, outer_unknown %p.\n",
 263             debugstr_guid(GUID), DD, UnkOuter);
 264
 265     wined3d_mutex_lock();
 266     hr = DDRAW_Create(GUID, (void **) DD, UnkOuter, &IID_IDirectDraw);
 267     wined3d_mutex_unlock();
 268
 269     if (SUCCEEDED(hr))
 270     {
 271         hr = IDirectDraw_Initialize(*DD, GUID);
 272         if (FAILED(hr))
 273             IDirectDraw_Release(*DD);
 274     }
 275
 276     return hr;
 277 }
 278
 279 /***********************************************************************
 280  * DirectDrawCreateEx (DDRAW.@)
 281  *
 282  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 283  * interfaces are requested.
 284  *
 285  * Arguments, return values: See DDRAW_Create
 286  *
 287  ***********************************************************************/
 288 HRESULT WINAPI DECLSPEC_HOTPATCH
 289 DirectDrawCreateEx(GUID *guid,
 290                    LPVOID *dd,
 291                    REFIID iid,
 292                    IUnknown *UnkOuter)
 293 {
 294     HRESULT hr;
 295
 296     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer_unknown %p.\n",
 297             debugstr_guid(guid), dd, debugstr_guid(iid), UnkOuter);
 298
 299     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 300         return DDERR_INVALIDPARAMS;
 301
 302     wined3d_mutex_lock();
 303     hr = DDRAW_Create(guid, dd, UnkOuter, iid);
 304     wined3d_mutex_unlock();
 305
 306     if (SUCCEEDED(hr))
 307     {
 308         IDirectDraw7 *ddraw7 = *(IDirectDraw7 **)dd;
 309         hr = IDirectDraw7_Initialize(ddraw7, guid);
 310         if (FAILED(hr))
 311             IDirectDraw7_Release(ddraw7);
 312     }
 313
 314     return hr;
 315 }
 316
 317 /***********************************************************************
 318  * DirectDrawEnumerateA (DDRAW.@)
 319  *
 320  * Enumerates legacy ddraw drivers, ascii version. We only have one
 321  * driver, which relays to WineD3D. If we were sufficiently cool,
 322  * we could offer various interfaces, which use a different default surface
 323  * implementation, but I think it's better to offer this choice in
 324  * winecfg, because some apps use the default driver, so we would need
 325  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 326  *
 327  * Arguments:
 328  *  Callback: Callback function from the app
 329  *  Context: Argument to the call back.
 330  *
 331  * Returns:
 332  *  DD_OK on success
 333  *  E_INVALIDARG if the Callback caused a page fault
 334  *
 335  *
 336  ***********************************************************************/
 337 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA Callback, void *Context)
 338 {
 339     TRACE("callback %p, context %p.\n", Callback, Context);
 340
 341     TRACE(" Enumerating default DirectDraw HAL interface\n");
 342     /* We only have one driver */
 343     __TRY
 344     {
 345         static CHAR driver_desc[] = "DirectDraw HAL",
 346         driver_name[] = "display";
 347
 348         Callback(NULL, driver_desc, driver_name, Context);
 349     }
 350     __EXCEPT_PAGE_FAULT
 351     {
 352         return DDERR_INVALIDPARAMS;
 353     }
 354     __ENDTRY
 355
 356     TRACE(" End of enumeration\n");
 357     return DD_OK;
 358 }
 359
 360 /***********************************************************************
 361  * DirectDrawEnumerateExA (DDRAW.@)
 362  *
 363  * Enumerates DirectDraw7 drivers, ascii version. See
 364  * the comments above DirectDrawEnumerateA for more details.
 365  *
 366  * The Flag member is not supported right now.
 367  *
 368  ***********************************************************************/
 369 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA Callback, void *Context, DWORD Flags)
 370 {
 371     TRACE("callback %p, context %p, flags %#x.\n", Callback, Context, Flags);
 372
 373     if (Flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 374                   DDENUM_DETACHEDSECONDARYDEVICES |
 375                   DDENUM_NONDISPLAYDEVICES))
 376         return DDERR_INVALIDPARAMS;
 377
 378     if (Flags)
 379         FIXME("flags 0x%08x not handled\n", Flags);
 380
 381     TRACE("Enumerating default DirectDraw HAL interface\n");
 382
 383     /* We only have one driver by now */
 384     __TRY
 385     {
 386         static CHAR driver_desc[] = "DirectDraw HAL",
 387         driver_name[] = "display";
 388
 389         /* QuickTime expects the description "DirectDraw HAL" */
 390         Callback(NULL, driver_desc, driver_name, Context, 0);
 391     }
 392     __EXCEPT_PAGE_FAULT
 393     {
 394         return DDERR_INVALIDPARAMS;
 395     }
 396     __ENDTRY;
 397
 398     TRACE("End of enumeration\n");
 399     return DD_OK;
 400 }
 401
 402 /***********************************************************************
 403  * DirectDrawEnumerateW (DDRAW.@)
 404  *
 405  * Enumerates legacy drivers, unicode version.
 406  * This function is not implemented on Windows.
 407  *
 408  ***********************************************************************/
 409 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 410 {
 411     TRACE("callback %p, context %p.\n", callback, context);
 412
 413     if (!callback)
 414         return DDERR_INVALIDPARAMS;
 415     else
 416         return DDERR_UNSUPPORTED;
 417 }
 418
 419 /***********************************************************************
 420  * DirectDrawEnumerateExW (DDRAW.@)
 421  *
 422  * Enumerates DirectDraw7 drivers, unicode version.
 423  * This function is not implemented on Windows.
 424  *
 425  ***********************************************************************/
 426 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 427 {
 428     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 429
 430     return DDERR_UNSUPPORTED;
 431 }
 432
 433 /***********************************************************************
 434  * Classfactory implementation.
 435  ***********************************************************************/
 436
 437 /***********************************************************************
 438  * CF_CreateDirectDraw
 439  *
 440  * DDraw creation function for the class factory
 441  *
 442  * Params:
 443  *  UnkOuter: Set to NULL
 444  *  iid: ID of the wanted interface
 445  *  obj: Address to pass the interface pointer back
 446  *
 447  * Returns
 448  *  DD_OK / DDERR*, see DDRAW_Create
 449  *
 450  ***********************************************************************/
 451 static HRESULT
 452 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 453                     void **obj)
 454 {
 455     HRESULT hr;
 456
 457     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 458
 459     wined3d_mutex_lock();
 460     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 461     wined3d_mutex_unlock();
 462
 463     return hr;
 464 }
 465
 466 /***********************************************************************
 467  * CF_CreateDirectDraw
 468  *
 469  * Clipper creation function for the class factory
 470  *
 471  * Params:
 472  *  UnkOuter: Set to NULL
 473  *  iid: ID of the wanted interface
 474  *  obj: Address to pass the interface pointer back
 475  *
 476  * Returns
 477  *  DD_OK / DDERR*, see DDRAW_Create
 478  *
 479  ***********************************************************************/
 480 static HRESULT
 481 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 482                               void **obj)
 483 {
 484     HRESULT hr;
 485     IDirectDrawClipper *Clip;
 486
 487     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 488
 489     wined3d_mutex_lock();
 490     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 491     if (hr != DD_OK)
 492     {
 493         wined3d_mutex_unlock();
 494         return hr;
 495     }
 496
 497     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 498     IDirectDrawClipper_Release(Clip);
 499
 500     wined3d_mutex_unlock();
 501
 502     return hr;
 503 }
 504
 505 static const struct object_creation_info object_creation[] =
 506 {
 507     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 508     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 509     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 510 };
 511
 512
 513 /******************************************************************************
 514  * DirectDraw ClassFactory implementation
 515  ******************************************************************************/
 516 typedef struct
 517 {
 518     IClassFactory IClassFactory_iface;
 519
 520     LONG ref;
 521     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID iid, LPVOID *ppObj);
 522 } IClassFactoryImpl;
 523
 524 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 525 {
 526     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 527 }
 528
 529 /*******************************************************************************
 530  * IDirectDrawClassFactory::QueryInterface
 531  *
 532  * QueryInterface for the class factory
 533  *
 534  * PARAMS
 535  *    riid   Reference to identifier of queried interface
 536  *    ppv    Address to return the interface pointer at
 537  *
 538  * RETURNS
 539  *    Success: S_OK
 540  *    Failure: E_NOINTERFACE
 541  *
 542  *******************************************************************************/
 543 static HRESULT WINAPI IDirectDrawClassFactoryImpl_QueryInterface(IClassFactory *iface, REFIID riid,
 544         void **obj)
 545 {
 546     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 547
 548     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 549
 550     if (IsEqualGUID(riid, &IID_IUnknown)
 551         || IsEqualGUID(riid, &IID_IClassFactory))
 552     {
 553         IClassFactory_AddRef(iface);
 554         *obj = This;
 555         return S_OK;
 556     }
 557
 558     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),obj);
 559     return E_NOINTERFACE;
 560 }
 561
 562 /*******************************************************************************
 563  * IDirectDrawClassFactory::AddRef
 564  *
 565  * AddRef for the class factory
 566  *
 567  * RETURNS
 568  *  The new refcount
 569  *
 570  *******************************************************************************/
 571 static ULONG WINAPI IDirectDrawClassFactoryImpl_AddRef(IClassFactory *iface)
 572 {
 573     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 574     ULONG ref = InterlockedIncrement(&This->ref);
 575
 576     TRACE("%p increasing refcount to %u.\n", This, ref);
 577
 578     return ref;
 579 }
 580
 581 /*******************************************************************************
 582  * IDirectDrawClassFactory::Release
 583  *
 584  * Release for the class factory. If the refcount falls to 0, the object
 585  * is destroyed
 586  *
 587  * RETURNS
 588  *  The new refcount
 589  *
 590  *******************************************************************************/
 591 static ULONG WINAPI IDirectDrawClassFactoryImpl_Release(IClassFactory *iface)
 592 {
 593     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 594     ULONG ref = InterlockedDecrement(&This->ref);
 595
 596     TRACE("%p decreasing refcount to %u.\n", This, ref);
 597
 598     if (ref == 0)
 599         HeapFree(GetProcessHeap(), 0, This);
 600
 601     return ref;
 602 }
 603
 604
 605 /*******************************************************************************
 606  * IDirectDrawClassFactory::CreateInstance
 607  *
 608  * What is this? Seems to create DirectDraw objects...
 609  *
 610  * Params
 611  *  The usual things???
 612  *
 613  * RETURNS
 614  *  ???
 615  *
 616  *******************************************************************************/
 617 static HRESULT WINAPI IDirectDrawClassFactoryImpl_CreateInstance(IClassFactory *iface,
 618         IUnknown *UnkOuter, REFIID riid, void **obj)
 619 {
 620     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 621
 622     TRACE("iface %p, outer_unknown %p, riid %s, object %p.\n",
 623             iface, UnkOuter, debugstr_guid(riid), obj);
 624
 625     return This->pfnCreateInstance(UnkOuter, riid, obj);
 626 }
 627
 628 /*******************************************************************************
 629  * IDirectDrawClassFactory::LockServer
 630  *
 631  * What is this?
 632  *
 633  * Params
 634  *  ???
 635  *
 636  * RETURNS
 637  *  S_OK, because it's a stub
 638  *
 639  *******************************************************************************/
 640 static HRESULT WINAPI IDirectDrawClassFactoryImpl_LockServer(IClassFactory *iface, BOOL dolock)
 641 {
 642     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 643
 644     return S_OK;
 645 }
 646
 647 /*******************************************************************************
 648  * The class factory VTable
 649  *******************************************************************************/
 650 static const IClassFactoryVtbl IClassFactory_Vtbl =
 651 {
 652     IDirectDrawClassFactoryImpl_QueryInterface,
 653     IDirectDrawClassFactoryImpl_AddRef,
 654     IDirectDrawClassFactoryImpl_Release,
 655     IDirectDrawClassFactoryImpl_CreateInstance,
 656     IDirectDrawClassFactoryImpl_LockServer
 657 };
 658
 659 /*******************************************************************************
 660  * DllGetClassObject [DDRAW.@]
 661  * Retrieves class object from a DLL object
 662  *
 663  * NOTES
 664  *    Docs say returns STDAPI
 665  *
 666  * PARAMS
 667  *    rclsid [I] CLSID for the class object
 668  *    riid   [I] Reference to identifier of interface for class object
 669  *    ppv    [O] Address of variable to receive interface pointer for riid
 670  *
 671  * RETURNS
 672  *    Success: S_OK
 673  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 674  *             E_UNEXPECTED
 675  */
 676 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 677 {
 678     unsigned int i;
 679     IClassFactoryImpl *factory;
 680
 681     TRACE("rclsid %s, riid %s, object %p.\n",
 682             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 683
 684     if (!IsEqualGUID(&IID_IClassFactory, riid)
 685             && !IsEqualGUID(&IID_IUnknown, riid))
 686         return E_NOINTERFACE;
 687
 688     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 689     {
 690         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 691             break;
 692     }
 693
 694     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 695     {
 696         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 697         return CLASS_E_CLASSNOTAVAILABLE;
 698     }
 699
 700     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
 701     if (factory == NULL) return E_OUTOFMEMORY;
 702
 703     factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
 704     factory->ref = 1;
 705
 706     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 707
 708     *ppv = factory;
 709     return S_OK;
 710 }
 711
 712
 713 /*******************************************************************************
 714  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 715  *
 716  * RETURNS
 717  *    Success: S_OK
 718  *    Failure: S_FALSE
 719  */
 720 HRESULT WINAPI DllCanUnloadNow(void)
 721 {
 722     TRACE("\n");
 723
 724     return S_FALSE;
 725 }
 726
 727
 728 /***********************************************************************
 729  *              DllRegisterServer (DDRAW.@)
 730  */
 731 HRESULT WINAPI DllRegisterServer(void)
 732 {
 733     return __wine_register_resources( instance );
 734 }
 735
 736 /***********************************************************************
 737  *              DllUnregisterServer (DDRAW.@)
 738  */
 739 HRESULT WINAPI DllUnregisterServer(void)
 740 {
 741     return __wine_unregister_resources( instance );
 742 }
 743
 744 /*******************************************************************************
 745  * DestroyCallback
 746  *
 747  * Callback function for the EnumSurfaces call in DllMain.
 748  * Dumps some surface info and releases the surface
 749  *
 750  * Params:
 751  *  surf: The enumerated surface
 752  *  desc: it's description
 753  *  context: Pointer to the ddraw impl
 754  *
 755  * Returns:
 756  *  DDENUMRET_OK;
 757  *******************************************************************************/
 758 static HRESULT WINAPI
 759 DestroyCallback(IDirectDrawSurface7 *surf,
 760                 DDSURFACEDESC2 *desc,
 761                 void *context)
 762 {
 763     IDirectDrawSurfaceImpl *Impl = impl_from_IDirectDrawSurface7(surf);
 764     ULONG ref7, ref4, ref3, ref2, ref1, gamma_count, iface_count;
 765
 766     ref7 = IDirectDrawSurface7_Release(surf);  /* For the EnumSurfaces */
 767     IDirectDrawSurface4_AddRef(&Impl->IDirectDrawSurface4_iface);
 768     ref4 = IDirectDrawSurface4_Release(&Impl->IDirectDrawSurface4_iface);
 769     IDirectDrawSurface3_AddRef(&Impl->IDirectDrawSurface3_iface);
 770     ref3 = IDirectDrawSurface3_Release(&Impl->IDirectDrawSurface3_iface);
 771     IDirectDrawSurface2_AddRef(&Impl->IDirectDrawSurface2_iface);
 772     ref2 = IDirectDrawSurface2_Release(&Impl->IDirectDrawSurface2_iface);
 773     IDirectDrawSurface_AddRef(&Impl->IDirectDrawSurface_iface);
 774     ref1 = IDirectDrawSurface_Release(&Impl->IDirectDrawSurface_iface);
 775     IDirectDrawGammaControl_AddRef(&Impl->IDirectDrawGammaControl_iface);
 776     gamma_count = IDirectDrawGammaControl_Release(&Impl->IDirectDrawGammaControl_iface);
 777     WARN("Surface %p has an reference counts of 7: %u 4: %u 3: %u 2: %u 1: %u gamma: %u\n",
 778             Impl, ref7, ref4, ref3, ref2, ref1, gamma_count);
 779
 780     /* Skip surfaces which are attached somewhere or which are
 781      * part of a complex compound. They will get released when destroying
 782      * the root
 783      */
 784     if( (!Impl->is_complex_root) || (Impl->first_attached != Impl) )
 785         return DDENUMRET_OK;
 786
 787     /* Destroy the surface */
 788     iface_count = ddraw_surface_release_iface(Impl);
 789     while (iface_count) iface_count = ddraw_surface_release_iface(Impl);
 790
 791     return DDENUMRET_OK;
 792 }
 793
 794 /***********************************************************************
 795  * get_config_key
 796  *
 797  * Reads a config key from the registry. Taken from WineD3D
 798  *
 799  ***********************************************************************/
 800 static inline DWORD get_config_key(HKEY defkey, HKEY appkey, const char* name, char* buffer, DWORD size)
 801 {
 802     if (0 != appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 803     if (0 != defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 804     return ERROR_FILE_NOT_FOUND;
 805 }
 806
 807 /***********************************************************************
 808  * DllMain (DDRAW.0)
 809  *
 810  * Could be used to register DirectDraw drivers, if we have more than
 811  * one. Also used to destroy any objects left at unload if the
 812  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
 813  *
 814  ***********************************************************************/
 815 BOOL WINAPI
 816 DllMain(HINSTANCE hInstDLL,
 817         DWORD Reason,
 818         LPVOID lpv)
 819 {
 820     TRACE("(%p,%x,%p)\n", hInstDLL, Reason, lpv);
 821     if (Reason == DLL_PROCESS_ATTACH)
 822     {
 823         char buffer[MAX_PATH+10];
 824         DWORD size = sizeof(buffer);
 825         HKEY hkey = 0;
 826         HKEY appkey = 0;
 827         WNDCLASSA wc;
 828         DWORD len;
 829
 830         /* Register the window class. This is used to create a hidden window
 831          * for D3D rendering, if the application didn't pass one. It can also
 832          * be used for creating a device window from SetCooperativeLevel(). */
 833         wc.style = CS_HREDRAW | CS_VREDRAW;
 834         wc.lpfnWndProc = DefWindowProcA;
 835         wc.cbClsExtra = 0;
 836         wc.cbWndExtra = 0;
 837         wc.hInstance = hInstDLL;
 838         wc.hIcon = 0;
 839         wc.hCursor = 0;
 840         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
 841         wc.lpszMenuName = NULL;
 842         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
 843         if (!RegisterClassA(&wc))
 844         {
 845             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
 846             return FALSE;
 847         }
 848
 849        /* @@ Wine registry key: HKCU\Software\Wine\Direct3D */
 850        if ( RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Direct3D", &hkey ) ) hkey = 0;
 851
 852        len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 853        if (len && len < MAX_PATH)
 854        {
 855             HKEY tmpkey;
 856             /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Direct3D */
 857             if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 858             {
 859                 char *p, *appname = buffer;
 860                 if ((p = strrchr( appname, '/' ))) appname = p + 1;
 861                 if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 862                 strcat( appname, "\\Direct3D" );
 863                 TRACE("appname = [%s]\n", appname);
 864                 if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 865                 RegCloseKey( tmpkey );
 866             }
 867        }
 868
 869        if ( 0 != hkey || 0 != appkey )
 870        {
 871             if ( !get_config_key( hkey, appkey, "DirectDrawRenderer", buffer, size) )
 872             {
 873                 if (!strcmp(buffer,"gdi"))
 874                 {
 875                     TRACE("Defaulting to GDI surfaces\n");
 876                     DefaultSurfaceType = SURFACE_GDI;
 877                 }
 878                 else if (!strcmp(buffer,"opengl"))
 879                 {
 880                     TRACE("Defaulting to opengl surfaces\n");
 881                     DefaultSurfaceType = SURFACE_OPENGL;
 882                 }
 883                 else
 884                 {
 885                     ERR("Unknown default surface type. Supported are:\n gdi, opengl\n");
 886                 }
 887             }
 888         }
 889
 890         /* On Windows one can force the refresh rate that DirectDraw uses by
 891          * setting an override value in dxdiag.  This is documented in KB315614
 892          * (main article), KB230002, and KB217348.  By comparing registry dumps
 893          * before and after setting the override, we see that the override value
 894          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
 895          * DWORD that represents the refresh rate to force.  We use this
 896          * registry entry to modify the behavior of SetDisplayMode so that Wine
 897          * users can override the refresh rate in a Windows-compatible way.
 898          *
 899          * dxdiag will not accept a refresh rate lower than 40 or higher than
 900          * 120 so this value should be within that range.  It is, of course,
 901          * possible for a user to set the registry entry value directly so that
 902          * assumption might not hold.
 903          *
 904          * There is no current mechanism for setting this value through the Wine
 905          * GUI.  It would be most appropriate to set this value through a dxdiag
 906          * clone, but it may be sufficient to use winecfg.
 907          *
 908          * TODO: Create a mechanism for setting this value through the Wine GUI.
 909          */
 910         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
 911         {
 912             DWORD type, data;
 913             size = sizeof(data);
 914             if (!RegQueryValueExA( hkey, "ForceRefreshRate", NULL, &type, (LPBYTE)&data, &size ) && type == REG_DWORD)
 915             {
 916                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
 917                 force_refresh_rate = data;
 918             }
 919             RegCloseKey( hkey );
 920         }
 921
 922         instance = hInstDLL;
 923         DisableThreadLibraryCalls(hInstDLL);
 924     }
 925     else if (Reason == DLL_PROCESS_DETACH)
 926     {
 927         if(!list_empty(&global_ddraw_list))
 928         {
 929             struct list *entry, *entry2;
 930             WARN("There are still existing DirectDraw interfaces. Wine bug or buggy application?\n");
 931
 932             /* We remove elements from this loop */
 933             LIST_FOR_EACH_SAFE(entry, entry2, &global_ddraw_list)
 934             {
 935                 HRESULT hr;
 936                 DDSURFACEDESC2 desc;
 937                 int i;
 938                 IDirectDrawImpl *ddraw = LIST_ENTRY(entry, IDirectDrawImpl, ddraw_list_entry);
 939
 940                 WARN("DDraw %p has a refcount of %d\n", ddraw, ddraw->ref7 + ddraw->ref4 + ddraw->ref3 + ddraw->ref2 + ddraw->ref1);
 941
 942                 /* Add references to each interface to avoid freeing them unexpectedly */
 943                 IDirectDraw_AddRef(&ddraw->IDirectDraw_iface);
 944                 IDirectDraw2_AddRef(&ddraw->IDirectDraw2_iface);
 945                 IDirectDraw4_AddRef(&ddraw->IDirectDraw4_iface);
 946                 IDirectDraw7_AddRef(&ddraw->IDirectDraw7_iface);
 947
 948                 if (ddraw->wined3d_swapchain)
 949                     ddraw_destroy_swapchain(ddraw);
 950
 951                 /* Does a D3D device exist? Destroy it
 952                     * TODO: Destroy all Vertex buffers, Lights, Materials
 953                     * and execute buffers too
 954                     */
 955                 if(ddraw->d3ddevice)
 956                 {
 957                     WARN("DDraw %p has d3ddevice %p attached\n", ddraw, ddraw->d3ddevice);
 958                     while(IDirect3DDevice7_Release(&ddraw->d3ddevice->IDirect3DDevice7_iface));
 959                 }
 960
 961                 /* Try to release the objects
 962                     * Do an EnumSurfaces to find any hanging surfaces
 963                     */
 964                 memset(&desc, 0, sizeof(desc));
 965                 desc.dwSize = sizeof(desc);
 966                 for(i = 0; i <= 1; i++)
 967                 {
 968                     hr = IDirectDraw7_EnumSurfaces(&ddraw->IDirectDraw7_iface, DDENUMSURFACES_ALL,
 969                             &desc, ddraw, DestroyCallback);
 970                     if(hr != D3D_OK)
 971                         ERR("(%p) EnumSurfaces failed, prepare for trouble\n", ddraw);
 972                 }
 973
 974                 if (!list_empty(&ddraw->surface_list))
 975                     ERR("DDraw %p still has surfaces attached.\n", ddraw);
 976
 977                 /* Release all hanging references to destroy the objects. This
 978                     * restores the screen mode too
 979                     */
 980                 while(IDirectDraw_Release(&ddraw->IDirectDraw_iface));
 981                 while(IDirectDraw2_Release(&ddraw->IDirectDraw2_iface));
 982                 while(IDirectDraw4_Release(&ddraw->IDirectDraw4_iface));
 983                 while(IDirectDraw7_Release(&ddraw->IDirectDraw7_iface));
 984             }
 985         }
 986
 987         /* Unregister the window class. */
 988         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, hInstDLL);
 989     }
 990
 991     return TRUE;
 992 }