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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
  33 #include "wine/exception.h"
  34 #include "winreg.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  37
  38 /* The configured default surface */
  39 WINED3DSURFTYPE DefaultSurfaceType = SURFACE_UNKNOWN;
  40
  41 typeof(WineDirect3DCreateClipper) *pWineDirect3DCreateClipper DECLSPEC_HIDDEN;
  42 typeof(WineDirect3DCreate) *pWineDirect3DCreate DECLSPEC_HIDDEN;
  43
  44 /* DDraw list and critical section */
  45 static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
  46
  47 static CRITICAL_SECTION_DEBUG ddraw_cs_debug =
  48 {
  49     0, 0, &ddraw_cs,
  50     { &ddraw_cs_debug.ProcessLocksList,
  51     &ddraw_cs_debug.ProcessLocksList },
  52     0, 0, { (DWORD_PTR)(__FILE__ ": ddraw_cs") }
  53 };
  54 CRITICAL_SECTION ddraw_cs = { &ddraw_cs_debug, -1, 0, 0, 0, 0 };
  55
  56 /* value of ForceRefreshRate */
  57 DWORD force_refresh_rate = 0;
  58
  59 /* Handle table functions */
  60 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
  61 {
  62     t->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, initial_size * sizeof(*t->entries));
  63     if (!t->entries)
  64     {
  65         ERR("Failed to allocate handle table memory.\n");
  66         return FALSE;
  67     }
  68     t->free_entries = NULL;
  69     t->table_size = initial_size;
  70     t->entry_count = 0;
  71
  72     return TRUE;
  73 }
  74
  75 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
  76 {
  77     HeapFree(GetProcessHeap(), 0, t->entries);
  78     memset(t, 0, sizeof(*t));
  79 }
  80
  81 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
  82 {
  83     struct ddraw_handle_entry *entry;
  84
  85     if (t->free_entries)
  86     {
  87         DWORD idx = t->free_entries - t->entries;
  88         /* Use a free handle */
  89         entry = t->free_entries;
  90         if (entry->type != DDRAW_HANDLE_FREE)
  91         {
  92             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
  93             return DDRAW_INVALID_HANDLE;
  94         }
  95         t->free_entries = entry->object;
  96         entry->object = object;
  97         entry->type = type;
  98
  99         return idx;
 100     }
 101
 102     if (!(t->entry_count < t->table_size))
 103     {
 104         /* Grow the table */
 105         UINT new_size = t->table_size + (t->table_size >> 1);
 106         struct ddraw_handle_entry *new_entries = HeapReAlloc(GetProcessHeap(),
 107                 0, t->entries, new_size * sizeof(*t->entries));
 108         if (!new_entries)
 109         {
 110             ERR("Failed to grow the handle table.\n");
 111             return DDRAW_INVALID_HANDLE;
 112         }
 113         t->entries = new_entries;
 114         t->table_size = new_size;
 115     }
 116
 117     entry = &t->entries[t->entry_count];
 118     entry->object = object;
 119     entry->type = type;
 120
 121     return t->entry_count++;
 122 }
 123
 124 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 125 {
 126     struct ddraw_handle_entry *entry;
 127     void *object;
 128
 129     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 130     {
 131         WARN("Invalid handle %#x passed.\n", handle);
 132         return NULL;
 133     }
 134
 135     entry = &t->entries[handle];
 136     if (entry->type != type)
 137     {
 138         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 139         return NULL;
 140     }
 141
 142     object = entry->object;
 143     entry->object = t->free_entries;
 144     entry->type = DDRAW_HANDLE_FREE;
 145     t->free_entries = entry;
 146
 147     return object;
 148 }
 149
 150 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 151 {
 152     struct ddraw_handle_entry *entry;
 153
 154     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 155     {
 156         WARN("Invalid handle %#x passed.\n", handle);
 157         return NULL;
 158     }
 159
 160     entry = &t->entries[handle];
 161     if (entry->type != type)
 162     {
 163         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 164         return NULL;
 165     }
 166
 167     return entry->object;
 168 }
 169
 170 /*
 171  * Helper Function for DDRAW_Create and DirectDrawCreateClipper for
 172  * lazy loading of the Wine D3D driver.
 173  *
 174  * Returns
 175  *  TRUE on success
 176  *  FALSE on failure.
 177  */
 178
 179 BOOL LoadWineD3D(void)
 180 {
 181     static HMODULE hWineD3D = (HMODULE) -1;
 182     if (hWineD3D == (HMODULE) -1)
 183     {
 184         hWineD3D = LoadLibraryA("wined3d");
 185         if (hWineD3D)
 186         {
 187             pWineDirect3DCreate = (typeof(WineDirect3DCreate) *)GetProcAddress(hWineD3D, "WineDirect3DCreate");
 188             pWineDirect3DCreateClipper = (typeof(WineDirect3DCreateClipper) *) GetProcAddress(hWineD3D, "WineDirect3DCreateClipper");
 189             return TRUE;
 190         }
 191     }
 192     return hWineD3D != NULL;
 193 }
 194
 195 /***********************************************************************
 196  *
 197  * Helper function for DirectDrawCreate and friends
 198  * Creates a new DDraw interface with the given REFIID
 199  *
 200  * Interfaces that can be created:
 201  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
 202  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
 203  *  IDirect3D interfaces?)
 204  *
 205  * Arguments:
 206  *  guid: ID of the requested driver, NULL for the default driver.
 207  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
 208  *  DD: Used to return the pointer to the created object
 209  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
 210  *  iid: requested version ID.
 211  *
 212  * Returns:
 213  *  DD_OK if the Interface was created successfully
 214  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
 215  *  E_OUTOFMEMORY if some allocation failed
 216  *
 217  ***********************************************************************/
 218 static HRESULT
 219 DDRAW_Create(const GUID *guid,
 220              void **DD,
 221              IUnknown *UnkOuter,
 222              REFIID iid)
 223 {
 224     WINED3DDEVTYPE devicetype;
 225     IDirectDrawImpl *This;
 226     HRESULT hr;
 227
 228     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
 229             debugstr_guid(guid), DD, UnkOuter, debugstr_guid(iid));
 230
 231     *DD = NULL;
 232
 233     /* We don't care about this guids. Well, there's no special guid anyway
 234      * OK, we could
 235      */
 236     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
 237     {
 238         /* Use the reference device id. This doesn't actually change anything,
 239          * WineD3D always uses OpenGL for D3D rendering. One could make it request
 240          * indirect rendering
 241          */
 242         devicetype = WINED3DDEVTYPE_REF;
 243     }
 244     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
 245     {
 246         devicetype = WINED3DDEVTYPE_HAL;
 247     }
 248     else
 249     {
 250         devicetype = 0;
 251     }
 252
 253     /* DDraw doesn't support aggregation, according to msdn */
 254     if (UnkOuter != NULL)
 255         return CLASS_E_NOAGGREGATION;
 256
 257     /* DirectDraw creation comes here */
 258     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectDrawImpl));
 259     if(!This)
 260     {
 261         ERR("Out of memory when creating DirectDraw\n");
 262         return E_OUTOFMEMORY;
 263     }
 264
 265     hr = ddraw_init(This, devicetype);
 266     if (FAILED(hr))
 267     {
 268         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 269         HeapFree(GetProcessHeap(), 0, This);
 270         return hr;
 271     }
 272
 273     hr = IDirectDraw7_QueryInterface((IDirectDraw7 *)This, iid, DD);
 274     IDirectDraw7_Release((IDirectDraw7 *)This);
 275     if (SUCCEEDED(hr)) list_add_head(&global_ddraw_list, &This->ddraw_list_entry);
 276     else WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), This);
 277
 278     return hr;
 279 }
 280
 281 /***********************************************************************
 282  * DirectDrawCreate (DDRAW.@)
 283  *
 284  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 285  * interfaces in theory
 286  *
 287  * Arguments, return values: See DDRAW_Create
 288  *
 289  ***********************************************************************/
 290 HRESULT WINAPI DECLSPEC_HOTPATCH
 291 DirectDrawCreate(GUID *GUID,
 292                  LPDIRECTDRAW *DD,
 293                  IUnknown *UnkOuter)
 294 {
 295     HRESULT hr;
 296
 297     TRACE("driver_guid %s, ddraw %p, outer_unknown %p.\n",
 298             debugstr_guid(GUID), DD, UnkOuter);
 299
 300     EnterCriticalSection(&ddraw_cs);
 301     hr = DDRAW_Create(GUID, (void **) DD, UnkOuter, &IID_IDirectDraw);
 302     LeaveCriticalSection(&ddraw_cs);
 303     return hr;
 304 }
 305
 306 /***********************************************************************
 307  * DirectDrawCreateEx (DDRAW.@)
 308  *
 309  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 310  * interfaces are requested.
 311  *
 312  * Arguments, return values: See DDRAW_Create
 313  *
 314  ***********************************************************************/
 315 HRESULT WINAPI DECLSPEC_HOTPATCH
 316 DirectDrawCreateEx(GUID *GUID,
 317                    LPVOID *DD,
 318                    REFIID iid,
 319                    IUnknown *UnkOuter)
 320 {
 321     HRESULT hr;
 322
 323     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer_unknown %p.\n",
 324             debugstr_guid(GUID), DD, debugstr_guid(iid), UnkOuter);
 325
 326     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 327         return DDERR_INVALIDPARAMS;
 328
 329     EnterCriticalSection(&ddraw_cs);
 330     hr = DDRAW_Create(GUID, DD, UnkOuter, iid);
 331     LeaveCriticalSection(&ddraw_cs);
 332     return hr;
 333 }
 334
 335 /***********************************************************************
 336  * DirectDrawEnumerateA (DDRAW.@)
 337  *
 338  * Enumerates legacy ddraw drivers, ascii version. We only have one
 339  * driver, which relays to WineD3D. If we were sufficiently cool,
 340  * we could offer various interfaces, which use a different default surface
 341  * implementation, but I think it's better to offer this choice in
 342  * winecfg, because some apps use the default driver, so we would need
 343  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 344  *
 345  * Arguments:
 346  *  Callback: Callback function from the app
 347  *  Context: Argument to the call back.
 348  *
 349  * Returns:
 350  *  DD_OK on success
 351  *  E_INVALIDARG if the Callback caused a page fault
 352  *
 353  *
 354  ***********************************************************************/
 355 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA Callback, void *Context)
 356 {
 357     TRACE("callback %p, context %p.\n", Callback, Context);
 358
 359     TRACE(" Enumerating default DirectDraw HAL interface\n");
 360     /* We only have one driver */
 361     __TRY
 362     {
 363         static CHAR driver_desc[] = "DirectDraw HAL",
 364         driver_name[] = "display";
 365
 366         Callback(NULL, driver_desc, driver_name, Context);
 367     }
 368     __EXCEPT_PAGE_FAULT
 369     {
 370         return DDERR_INVALIDPARAMS;
 371     }
 372     __ENDTRY
 373
 374     TRACE(" End of enumeration\n");
 375     return DD_OK;
 376 }
 377
 378 /***********************************************************************
 379  * DirectDrawEnumerateExA (DDRAW.@)
 380  *
 381  * Enumerates DirectDraw7 drivers, ascii version. See
 382  * the comments above DirectDrawEnumerateA for more details.
 383  *
 384  * The Flag member is not supported right now.
 385  *
 386  ***********************************************************************/
 387 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA Callback, void *Context, DWORD Flags)
 388 {
 389     TRACE("callback %p, context %p, flags %#x.\n", Callback, Context, Flags);
 390
 391     if (Flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 392                   DDENUM_DETACHEDSECONDARYDEVICES |
 393                   DDENUM_NONDISPLAYDEVICES))
 394         return DDERR_INVALIDPARAMS;
 395
 396     if (Flags)
 397         FIXME("flags 0x%08x not handled\n", Flags);
 398
 399     TRACE("Enumerating default DirectDraw HAL interface\n");
 400
 401     /* We only have one driver by now */
 402     __TRY
 403     {
 404         static CHAR driver_desc[] = "DirectDraw HAL",
 405         driver_name[] = "display";
 406
 407         /* QuickTime expects the description "DirectDraw HAL" */
 408         Callback(NULL, driver_desc, driver_name, Context, 0);
 409     }
 410     __EXCEPT_PAGE_FAULT
 411     {
 412         return DDERR_INVALIDPARAMS;
 413     }
 414     __ENDTRY;
 415
 416     TRACE("End of enumeration\n");
 417     return DD_OK;
 418 }
 419
 420 /***********************************************************************
 421  * DirectDrawEnumerateW (DDRAW.@)
 422  *
 423  * Enumerates legacy drivers, unicode version.
 424  * This function is not implemented on Windows.
 425  *
 426  ***********************************************************************/
 427 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 428 {
 429     TRACE("callback %p, context %p.\n", callback, context);
 430
 431     if (!callback)
 432         return DDERR_INVALIDPARAMS;
 433     else
 434         return DDERR_UNSUPPORTED;
 435 }
 436
 437 /***********************************************************************
 438  * DirectDrawEnumerateExW (DDRAW.@)
 439  *
 440  * Enumerates DirectDraw7 drivers, unicode version.
 441  * This function is not implemented on Windows.
 442  *
 443  ***********************************************************************/
 444 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 445 {
 446     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 447
 448     return DDERR_UNSUPPORTED;
 449 }
 450
 451 /***********************************************************************
 452  * Classfactory implementation.
 453  ***********************************************************************/
 454
 455 /***********************************************************************
 456  * CF_CreateDirectDraw
 457  *
 458  * DDraw creation function for the class factory
 459  *
 460  * Params:
 461  *  UnkOuter: Set to NULL
 462  *  iid: ID of the wanted interface
 463  *  obj: Address to pass the interface pointer back
 464  *
 465  * Returns
 466  *  DD_OK / DDERR*, see DDRAW_Create
 467  *
 468  ***********************************************************************/
 469 static HRESULT
 470 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 471                     void **obj)
 472 {
 473     HRESULT hr;
 474
 475     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 476
 477     EnterCriticalSection(&ddraw_cs);
 478     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 479     LeaveCriticalSection(&ddraw_cs);
 480     return hr;
 481 }
 482
 483 /***********************************************************************
 484  * CF_CreateDirectDraw
 485  *
 486  * Clipper creation function for the class factory
 487  *
 488  * Params:
 489  *  UnkOuter: Set to NULL
 490  *  iid: ID of the wanted interface
 491  *  obj: Address to pass the interface pointer back
 492  *
 493  * Returns
 494  *  DD_OK / DDERR*, see DDRAW_Create
 495  *
 496  ***********************************************************************/
 497 static HRESULT
 498 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 499                               void **obj)
 500 {
 501     HRESULT hr;
 502     IDirectDrawClipper *Clip;
 503
 504     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 505
 506     EnterCriticalSection(&ddraw_cs);
 507     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 508     if (hr != DD_OK)
 509     {
 510         LeaveCriticalSection(&ddraw_cs);
 511         return hr;
 512     }
 513
 514     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 515     IDirectDrawClipper_Release(Clip);
 516
 517     LeaveCriticalSection(&ddraw_cs);
 518     return hr;
 519 }
 520
 521 static const struct object_creation_info object_creation[] =
 522 {
 523     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 524     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 525     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 526 };
 527
 528 /*******************************************************************************
 529  * IDirectDrawClassFactory::QueryInterface
 530  *
 531  * QueryInterface for the class factory
 532  *
 533  * PARAMS
 534  *    riid   Reference to identifier of queried interface
 535  *    ppv    Address to return the interface pointer at
 536  *
 537  * RETURNS
 538  *    Success: S_OK
 539  *    Failure: E_NOINTERFACE
 540  *
 541  *******************************************************************************/
 542 static HRESULT WINAPI
 543 IDirectDrawClassFactoryImpl_QueryInterface(IClassFactory *iface,
 544                     REFIID riid,
 545                     void **obj)
 546 {
 547     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 548
 549     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 550
 551     if (IsEqualGUID(riid, &IID_IUnknown)
 552         || IsEqualGUID(riid, &IID_IClassFactory))
 553     {
 554         IClassFactory_AddRef(iface);
 555         *obj = This;
 556         return S_OK;
 557     }
 558
 559     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),obj);
 560     return E_NOINTERFACE;
 561 }
 562
 563 /*******************************************************************************
 564  * IDirectDrawClassFactory::AddRef
 565  *
 566  * AddRef for the class factory
 567  *
 568  * RETURNS
 569  *  The new refcount
 570  *
 571  *******************************************************************************/
 572 static ULONG WINAPI
 573 IDirectDrawClassFactoryImpl_AddRef(IClassFactory *iface)
 574 {
 575     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 576     ULONG ref = InterlockedIncrement(&This->ref);
 577
 578     TRACE("%p increasing refcount to %u.\n", This, ref);
 579
 580     return ref;
 581 }
 582
 583 /*******************************************************************************
 584  * IDirectDrawClassFactory::Release
 585  *
 586  * Release for the class factory. If the refcount falls to 0, the object
 587  * is destroyed
 588  *
 589  * RETURNS
 590  *  The new refcount
 591  *
 592  *******************************************************************************/
 593 static ULONG WINAPI
 594 IDirectDrawClassFactoryImpl_Release(IClassFactory *iface)
 595 {
 596     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 597     ULONG ref = InterlockedDecrement(&This->ref);
 598
 599     TRACE("%p decreasing refcount to %u.\n", This, ref);
 600
 601     if (ref == 0)
 602         HeapFree(GetProcessHeap(), 0, This);
 603
 604     return ref;
 605 }
 606
 607
 608 /*******************************************************************************
 609  * IDirectDrawClassFactory::CreateInstance
 610  *
 611  * What is this? Seems to create DirectDraw objects...
 612  *
 613  * Params
 614  *  The usual things???
 615  *
 616  * RETURNS
 617  *  ???
 618  *
 619  *******************************************************************************/
 620 static HRESULT WINAPI
 621 IDirectDrawClassFactoryImpl_CreateInstance(IClassFactory *iface,
 622                                            IUnknown *UnkOuter,
 623                                            REFIID riid,
 624                                            void **obj)
 625 {
 626     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 627
 628     TRACE("iface %p, outer_unknown %p, riid %s, object %p.\n",
 629             iface, UnkOuter, debugstr_guid(riid), obj);
 630
 631     return This->pfnCreateInstance(UnkOuter, riid, obj);
 632 }
 633
 634 /*******************************************************************************
 635  * IDirectDrawClassFactory::LockServer
 636  *
 637  * What is this?
 638  *
 639  * Params
 640  *  ???
 641  *
 642  * RETURNS
 643  *  S_OK, because it's a stub
 644  *
 645  *******************************************************************************/
 646 static HRESULT WINAPI IDirectDrawClassFactoryImpl_LockServer(IClassFactory *iface, BOOL dolock)
 647 {
 648     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 649
 650     return S_OK;
 651 }
 652
 653 /*******************************************************************************
 654  * The class factory VTable
 655  *******************************************************************************/
 656 static const IClassFactoryVtbl IClassFactory_Vtbl =
 657 {
 658     IDirectDrawClassFactoryImpl_QueryInterface,
 659     IDirectDrawClassFactoryImpl_AddRef,
 660     IDirectDrawClassFactoryImpl_Release,
 661     IDirectDrawClassFactoryImpl_CreateInstance,
 662     IDirectDrawClassFactoryImpl_LockServer
 663 };
 664
 665 /*******************************************************************************
 666  * DllGetClassObject [DDRAW.@]
 667  * Retrieves class object from a DLL object
 668  *
 669  * NOTES
 670  *    Docs say returns STDAPI
 671  *
 672  * PARAMS
 673  *    rclsid [I] CLSID for the class object
 674  *    riid   [I] Reference to identifier of interface for class object
 675  *    ppv    [O] Address of variable to receive interface pointer for riid
 676  *
 677  * RETURNS
 678  *    Success: S_OK
 679  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 680  *             E_UNEXPECTED
 681  */
 682 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 683 {
 684     unsigned int i;
 685     IClassFactoryImpl *factory;
 686
 687     TRACE("rclsid %s, riid %s, object %p.\n",
 688             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 689
 690     if (!IsEqualGUID(&IID_IClassFactory, riid)
 691             && !IsEqualGUID(&IID_IUnknown, riid))
 692         return E_NOINTERFACE;
 693
 694     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 695     {
 696         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 697             break;
 698     }
 699
 700     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 701     {
 702         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 703         return CLASS_E_CLASSNOTAVAILABLE;
 704     }
 705
 706     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
 707     if (factory == NULL) return E_OUTOFMEMORY;
 708
 709     factory->lpVtbl = &IClassFactory_Vtbl;
 710     factory->ref = 1;
 711
 712     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 713
 714     *ppv = factory;
 715     return S_OK;
 716 }
 717
 718
 719 /*******************************************************************************
 720  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 721  *
 722  * RETURNS
 723  *    Success: S_OK
 724  *    Failure: S_FALSE
 725  */
 726 HRESULT WINAPI DllCanUnloadNow(void)
 727 {
 728     TRACE("\n");
 729
 730     return S_FALSE;
 731 }
 732
 733 /*******************************************************************************
 734  * DestroyCallback
 735  *
 736  * Callback function for the EnumSurfaces call in DllMain.
 737  * Dumps some surface info and releases the surface
 738  *
 739  * Params:
 740  *  surf: The enumerated surface
 741  *  desc: it's description
 742  *  context: Pointer to the ddraw impl
 743  *
 744  * Returns:
 745  *  DDENUMRET_OK;
 746  *******************************************************************************/
 747 static HRESULT WINAPI
 748 DestroyCallback(IDirectDrawSurface7 *surf,
 749                 DDSURFACEDESC2 *desc,
 750                 void *context)
 751 {
 752     IDirectDrawSurfaceImpl *Impl = (IDirectDrawSurfaceImpl *)surf;
 753     ULONG ref;
 754
 755     ref = IDirectDrawSurface7_Release(surf);  /* For the EnumSurfaces */
 756     WARN("Surface %p has an reference count of %d\n", Impl, ref);
 757
 758     /* Skip surfaces which are attached somewhere or which are
 759      * part of a complex compound. They will get released when destroying
 760      * the root
 761      */
 762     if( (!Impl->is_complex_root) || (Impl->first_attached != Impl) )
 763         return DDENUMRET_OK;
 764
 765     /* Destroy the surface */
 766     while(ref) ref = IDirectDrawSurface7_Release(surf);
 767
 768     return DDENUMRET_OK;
 769 }
 770
 771 /***********************************************************************
 772  * get_config_key
 773  *
 774  * Reads a config key from the registry. Taken from WineD3D
 775  *
 776  ***********************************************************************/
 777 static inline DWORD get_config_key(HKEY defkey, HKEY appkey, const char* name, char* buffer, DWORD size)
 778 {
 779     if (0 != appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 780     if (0 != defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 781     return ERROR_FILE_NOT_FOUND;
 782 }
 783
 784 /***********************************************************************
 785  * DllMain (DDRAW.0)
 786  *
 787  * Could be used to register DirectDraw drivers, if we have more than
 788  * one. Also used to destroy any objects left at unload if the
 789  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
 790  *
 791  ***********************************************************************/
 792 BOOL WINAPI
 793 DllMain(HINSTANCE hInstDLL,
 794         DWORD Reason,
 795         LPVOID lpv)
 796 {
 797     TRACE("(%p,%x,%p)\n", hInstDLL, Reason, lpv);
 798     if (Reason == DLL_PROCESS_ATTACH)
 799     {
 800         char buffer[MAX_PATH+10];
 801         DWORD size = sizeof(buffer);
 802         HKEY hkey = 0;
 803         HKEY appkey = 0;
 804         WNDCLASSA wc;
 805         DWORD len;
 806
 807         /* Register the window class. This is used to create a hidden window
 808          * for D3D rendering, if the application didn't pass one. It can also
 809          * be used for creating a device window from SetCooperativeLevel(). */
 810         wc.style = CS_HREDRAW | CS_VREDRAW;
 811         wc.lpfnWndProc = DefWindowProcA;
 812         wc.cbClsExtra = 0;
 813         wc.cbWndExtra = 0;
 814         wc.hInstance = hInstDLL;
 815         wc.hIcon = 0;
 816         wc.hCursor = 0;
 817         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
 818         wc.lpszMenuName = NULL;
 819         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
 820         if (!RegisterClassA(&wc))
 821         {
 822             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
 823             return FALSE;
 824         }
 825
 826        /* @@ Wine registry key: HKCU\Software\Wine\Direct3D */
 827        if ( RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Direct3D", &hkey ) ) hkey = 0;
 828
 829        len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 830        if (len && len < MAX_PATH)
 831        {
 832             HKEY tmpkey;
 833             /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Direct3D */
 834             if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 835             {
 836                 char *p, *appname = buffer;
 837                 if ((p = strrchr( appname, '/' ))) appname = p + 1;
 838                 if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 839                 strcat( appname, "\\Direct3D" );
 840                 TRACE("appname = [%s]\n", appname);
 841                 if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 842                 RegCloseKey( tmpkey );
 843             }
 844        }
 845
 846        if ( 0 != hkey || 0 != appkey )
 847        {
 848             if ( !get_config_key( hkey, appkey, "DirectDrawRenderer", buffer, size) )
 849             {
 850                 if (!strcmp(buffer,"gdi"))
 851                 {
 852                     TRACE("Defaulting to GDI surfaces\n");
 853                     DefaultSurfaceType = SURFACE_GDI;
 854                 }
 855                 else if (!strcmp(buffer,"opengl"))
 856                 {
 857                     TRACE("Defaulting to opengl surfaces\n");
 858                     DefaultSurfaceType = SURFACE_OPENGL;
 859                 }
 860                 else
 861                 {
 862                     ERR("Unknown default surface type. Supported are:\n gdi, opengl\n");
 863                 }
 864             }
 865         }
 866
 867         /* On Windows one can force the refresh rate that DirectDraw uses by
 868          * setting an override value in dxdiag.  This is documented in KB315614
 869          * (main article), KB230002, and KB217348.  By comparing registry dumps
 870          * before and after setting the override, we see that the override value
 871          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
 872          * DWORD that represents the refresh rate to force.  We use this
 873          * registry entry to modify the behavior of SetDisplayMode so that Wine
 874          * users can override the refresh rate in a Windows-compatible way.
 875          *
 876          * dxdiag will not accept a refresh rate lower than 40 or higher than
 877          * 120 so this value should be within that range.  It is, of course,
 878          * possible for a user to set the registry entry value directly so that
 879          * assumption might not hold.
 880          *
 881          * There is no current mechanism for setting this value through the Wine
 882          * GUI.  It would be most appropriate to set this value through a dxdiag
 883          * clone, but it may be sufficient to use winecfg.
 884          *
 885          * TODO: Create a mechanism for setting this value through the Wine GUI.
 886          */
 887         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
 888         {
 889             DWORD type, data;
 890             size = sizeof(data);
 891             if (!RegQueryValueExA( hkey, "ForceRefreshRate", NULL, &type, (LPBYTE)&data, &size ) && type == REG_DWORD)
 892             {
 893                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
 894                 force_refresh_rate = data;
 895             }
 896             RegCloseKey( hkey );
 897         }
 898
 899         DisableThreadLibraryCalls(hInstDLL);
 900     }
 901     else if (Reason == DLL_PROCESS_DETACH)
 902     {
 903         if(!list_empty(&global_ddraw_list))
 904         {
 905             struct list *entry, *entry2;
 906             WARN("There are still existing DirectDraw interfaces. Wine bug or buggy application?\n");
 907
 908             /* We remove elements from this loop */
 909             LIST_FOR_EACH_SAFE(entry, entry2, &global_ddraw_list)
 910             {
 911                 HRESULT hr;
 912                 DDSURFACEDESC2 desc;
 913                 int i;
 914                 IDirectDrawImpl *ddraw = LIST_ENTRY(entry, IDirectDrawImpl, ddraw_list_entry);
 915
 916                 WARN("DDraw %p has a refcount of %d\n", ddraw, ddraw->ref7 + ddraw->ref4 + ddraw->ref3 + ddraw->ref2 + ddraw->ref1);
 917
 918                 /* Add references to each interface to avoid freeing them unexpectedly */
 919                 IDirectDraw_AddRef((IDirectDraw *)&ddraw->IDirectDraw_vtbl);
 920                 IDirectDraw2_AddRef((IDirectDraw2 *)&ddraw->IDirectDraw2_vtbl);
 921                 IDirectDraw3_AddRef((IDirectDraw3 *)&ddraw->IDirectDraw3_vtbl);
 922                 IDirectDraw4_AddRef((IDirectDraw4 *)&ddraw->IDirectDraw4_vtbl);
 923                 IDirectDraw7_AddRef((IDirectDraw7 *)ddraw);
 924
 925                 /* Does a D3D device exist? Destroy it
 926                     * TODO: Destroy all Vertex buffers, Lights, Materials
 927                     * and execute buffers too
 928                     */
 929                 if(ddraw->d3ddevice)
 930                 {
 931                     WARN("DDraw %p has d3ddevice %p attached\n", ddraw, ddraw->d3ddevice);
 932                     while(IDirect3DDevice7_Release((IDirect3DDevice7 *)ddraw->d3ddevice));
 933                 }
 934
 935                 /* Try to release the objects
 936                     * Do an EnumSurfaces to find any hanging surfaces
 937                     */
 938                 memset(&desc, 0, sizeof(desc));
 939                 desc.dwSize = sizeof(desc);
 940                 for(i = 0; i <= 1; i++)
 941                 {
 942                     hr = IDirectDraw7_EnumSurfaces((IDirectDraw7 *)ddraw,
 943                             DDENUMSURFACES_ALL, &desc, ddraw, DestroyCallback);
 944                     if(hr != D3D_OK)
 945                         ERR("(%p) EnumSurfaces failed, prepare for trouble\n", ddraw);
 946                 }
 947
 948                 /* Check the surface count */
 949                 if(ddraw->surfaces > 0)
 950                     ERR("DDraw %p still has %d surfaces attached\n", ddraw, ddraw->surfaces);
 951
 952                 /* Release all hanging references to destroy the objects. This
 953                     * restores the screen mode too
 954                     */
 955                 while(IDirectDraw_Release((IDirectDraw *)&ddraw->IDirectDraw_vtbl));
 956                 while(IDirectDraw2_Release((IDirectDraw2 *)&ddraw->IDirectDraw2_vtbl));
 957                 while(IDirectDraw3_Release((IDirectDraw3 *)&ddraw->IDirectDraw3_vtbl));
 958                 while(IDirectDraw4_Release((IDirectDraw4 *)&ddraw->IDirectDraw4_vtbl));
 959                 while(IDirectDraw7_Release((IDirectDraw7 *)ddraw));
 960             }
 961         }
 962
 963         /* Unregister the window class. */
 964         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, hInstDLL);
 965     }
 966
 967     return TRUE;
 968 }