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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_UNKNOWN;
  41
  42 typeof(WineDirect3DCreateClipper) *pWineDirect3DCreateClipper DECLSPEC_HIDDEN;
  43 typeof(WineDirect3DCreate) *pWineDirect3DCreate DECLSPEC_HIDDEN;
  44
  45 /* DDraw list and critical section */
  46 static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
  47
  48 static CRITICAL_SECTION_DEBUG ddraw_cs_debug =
  49 {
  50     0, 0, &ddraw_cs,
  51     { &ddraw_cs_debug.ProcessLocksList,
  52     &ddraw_cs_debug.ProcessLocksList },
  53     0, 0, { (DWORD_PTR)(__FILE__ ": ddraw_cs") }
  54 };
  55 CRITICAL_SECTION ddraw_cs = { &ddraw_cs_debug, -1, 0, 0, 0, 0 };
  56
  57 static HINSTANCE instance;
  58
  59 /* value of ForceRefreshRate */
  60 DWORD force_refresh_rate = 0;
  61
  62 /* Handle table functions */
  63 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
  64 {
  65     t->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, initial_size * sizeof(*t->entries));
  66     if (!t->entries)
  67     {
  68         ERR("Failed to allocate handle table memory.\n");
  69         return FALSE;
  70     }
  71     t->free_entries = NULL;
  72     t->table_size = initial_size;
  73     t->entry_count = 0;
  74
  75     return TRUE;
  76 }
  77
  78 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
  79 {
  80     HeapFree(GetProcessHeap(), 0, t->entries);
  81     memset(t, 0, sizeof(*t));
  82 }
  83
  84 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
  85 {
  86     struct ddraw_handle_entry *entry;
  87
  88     if (t->free_entries)
  89     {
  90         DWORD idx = t->free_entries - t->entries;
  91         /* Use a free handle */
  92         entry = t->free_entries;
  93         if (entry->type != DDRAW_HANDLE_FREE)
  94         {
  95             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
  96             return DDRAW_INVALID_HANDLE;
  97         }
  98         t->free_entries = entry->object;
  99         entry->object = object;
 100         entry->type = type;
 101
 102         return idx;
 103     }
 104
 105     if (!(t->entry_count < t->table_size))
 106     {
 107         /* Grow the table */
 108         UINT new_size = t->table_size + (t->table_size >> 1);
 109         struct ddraw_handle_entry *new_entries = HeapReAlloc(GetProcessHeap(),
 110                 0, t->entries, new_size * sizeof(*t->entries));
 111         if (!new_entries)
 112         {
 113             ERR("Failed to grow the handle table.\n");
 114             return DDRAW_INVALID_HANDLE;
 115         }
 116         t->entries = new_entries;
 117         t->table_size = new_size;
 118     }
 119
 120     entry = &t->entries[t->entry_count];
 121     entry->object = object;
 122     entry->type = type;
 123
 124     return t->entry_count++;
 125 }
 126
 127 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 128 {
 129     struct ddraw_handle_entry *entry;
 130     void *object;
 131
 132     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 133     {
 134         WARN("Invalid handle %#x passed.\n", handle);
 135         return NULL;
 136     }
 137
 138     entry = &t->entries[handle];
 139     if (entry->type != type)
 140     {
 141         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 142         return NULL;
 143     }
 144
 145     object = entry->object;
 146     entry->object = t->free_entries;
 147     entry->type = DDRAW_HANDLE_FREE;
 148     t->free_entries = entry;
 149
 150     return object;
 151 }
 152
 153 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 154 {
 155     struct ddraw_handle_entry *entry;
 156
 157     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 158     {
 159         WARN("Invalid handle %#x passed.\n", handle);
 160         return NULL;
 161     }
 162
 163     entry = &t->entries[handle];
 164     if (entry->type != type)
 165     {
 166         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 167         return NULL;
 168     }
 169
 170     return entry->object;
 171 }
 172
 173 /*
 174  * Helper Function for DDRAW_Create and DirectDrawCreateClipper for
 175  * lazy loading of the Wine D3D driver.
 176  *
 177  * Returns
 178  *  TRUE on success
 179  *  FALSE on failure.
 180  */
 181
 182 BOOL LoadWineD3D(void)
 183 {
 184     static HMODULE hWineD3D = (HMODULE) -1;
 185     if (hWineD3D == (HMODULE) -1)
 186     {
 187         hWineD3D = LoadLibraryA("wined3d");
 188         if (hWineD3D)
 189         {
 190             pWineDirect3DCreate = (typeof(WineDirect3DCreate) *)GetProcAddress(hWineD3D, "WineDirect3DCreate");
 191             pWineDirect3DCreateClipper = (typeof(WineDirect3DCreateClipper) *) GetProcAddress(hWineD3D, "WineDirect3DCreateClipper");
 192             return TRUE;
 193         }
 194     }
 195     return hWineD3D != NULL;
 196 }
 197
 198 /***********************************************************************
 199  *
 200  * Helper function for DirectDrawCreate and friends
 201  * Creates a new DDraw interface with the given REFIID
 202  *
 203  * Interfaces that can be created:
 204  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
 205  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
 206  *  IDirect3D interfaces?)
 207  *
 208  * Arguments:
 209  *  guid: ID of the requested driver, NULL for the default driver.
 210  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
 211  *  DD: Used to return the pointer to the created object
 212  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
 213  *  iid: requested version ID.
 214  *
 215  * Returns:
 216  *  DD_OK if the Interface was created successfully
 217  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
 218  *  E_OUTOFMEMORY if some allocation failed
 219  *
 220  ***********************************************************************/
 221 static HRESULT
 222 DDRAW_Create(const GUID *guid,
 223              void **DD,
 224              IUnknown *UnkOuter,
 225              REFIID iid)
 226 {
 227     WINED3DDEVTYPE devicetype;
 228     IDirectDrawImpl *This;
 229     HRESULT hr;
 230
 231     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
 232             debugstr_guid(guid), DD, UnkOuter, debugstr_guid(iid));
 233
 234     *DD = NULL;
 235
 236     /* We don't care about this guids. Well, there's no special guid anyway
 237      * OK, we could
 238      */
 239     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
 240     {
 241         /* Use the reference device id. This doesn't actually change anything,
 242          * WineD3D always uses OpenGL for D3D rendering. One could make it request
 243          * indirect rendering
 244          */
 245         devicetype = WINED3DDEVTYPE_REF;
 246     }
 247     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
 248     {
 249         devicetype = WINED3DDEVTYPE_HAL;
 250     }
 251     else
 252     {
 253         devicetype = 0;
 254     }
 255
 256     /* DDraw doesn't support aggregation, according to msdn */
 257     if (UnkOuter != NULL)
 258         return CLASS_E_NOAGGREGATION;
 259
 260     /* DirectDraw creation comes here */
 261     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectDrawImpl));
 262     if(!This)
 263     {
 264         ERR("Out of memory when creating DirectDraw\n");
 265         return E_OUTOFMEMORY;
 266     }
 267
 268     hr = ddraw_init(This, devicetype);
 269     if (FAILED(hr))
 270     {
 271         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 272         HeapFree(GetProcessHeap(), 0, This);
 273         return hr;
 274     }
 275
 276     hr = IDirectDraw7_QueryInterface((IDirectDraw7 *)This, iid, DD);
 277     IDirectDraw7_Release((IDirectDraw7 *)This);
 278     if (SUCCEEDED(hr)) list_add_head(&global_ddraw_list, &This->ddraw_list_entry);
 279     else WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), This);
 280
 281     return hr;
 282 }
 283
 284 /***********************************************************************
 285  * DirectDrawCreate (DDRAW.@)
 286  *
 287  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 288  * interfaces in theory
 289  *
 290  * Arguments, return values: See DDRAW_Create
 291  *
 292  ***********************************************************************/
 293 HRESULT WINAPI DECLSPEC_HOTPATCH
 294 DirectDrawCreate(GUID *GUID,
 295                  LPDIRECTDRAW *DD,
 296                  IUnknown *UnkOuter)
 297 {
 298     HRESULT hr;
 299
 300     TRACE("driver_guid %s, ddraw %p, outer_unknown %p.\n",
 301             debugstr_guid(GUID), DD, UnkOuter);
 302
 303     EnterCriticalSection(&ddraw_cs);
 304     hr = DDRAW_Create(GUID, (void **) DD, UnkOuter, &IID_IDirectDraw);
 305     LeaveCriticalSection(&ddraw_cs);
 306     return hr;
 307 }
 308
 309 /***********************************************************************
 310  * DirectDrawCreateEx (DDRAW.@)
 311  *
 312  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 313  * interfaces are requested.
 314  *
 315  * Arguments, return values: See DDRAW_Create
 316  *
 317  ***********************************************************************/
 318 HRESULT WINAPI DECLSPEC_HOTPATCH
 319 DirectDrawCreateEx(GUID *GUID,
 320                    LPVOID *DD,
 321                    REFIID iid,
 322                    IUnknown *UnkOuter)
 323 {
 324     HRESULT hr;
 325
 326     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer_unknown %p.\n",
 327             debugstr_guid(GUID), DD, debugstr_guid(iid), UnkOuter);
 328
 329     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 330         return DDERR_INVALIDPARAMS;
 331
 332     EnterCriticalSection(&ddraw_cs);
 333     hr = DDRAW_Create(GUID, DD, UnkOuter, iid);
 334     LeaveCriticalSection(&ddraw_cs);
 335     return hr;
 336 }
 337
 338 /***********************************************************************
 339  * DirectDrawEnumerateA (DDRAW.@)
 340  *
 341  * Enumerates legacy ddraw drivers, ascii version. We only have one
 342  * driver, which relays to WineD3D. If we were sufficiently cool,
 343  * we could offer various interfaces, which use a different default surface
 344  * implementation, but I think it's better to offer this choice in
 345  * winecfg, because some apps use the default driver, so we would need
 346  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 347  *
 348  * Arguments:
 349  *  Callback: Callback function from the app
 350  *  Context: Argument to the call back.
 351  *
 352  * Returns:
 353  *  DD_OK on success
 354  *  E_INVALIDARG if the Callback caused a page fault
 355  *
 356  *
 357  ***********************************************************************/
 358 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA Callback, void *Context)
 359 {
 360     TRACE("callback %p, context %p.\n", Callback, Context);
 361
 362     TRACE(" Enumerating default DirectDraw HAL interface\n");
 363     /* We only have one driver */
 364     __TRY
 365     {
 366         static CHAR driver_desc[] = "DirectDraw HAL",
 367         driver_name[] = "display";
 368
 369         Callback(NULL, driver_desc, driver_name, Context);
 370     }
 371     __EXCEPT_PAGE_FAULT
 372     {
 373         return DDERR_INVALIDPARAMS;
 374     }
 375     __ENDTRY
 376
 377     TRACE(" End of enumeration\n");
 378     return DD_OK;
 379 }
 380
 381 /***********************************************************************
 382  * DirectDrawEnumerateExA (DDRAW.@)
 383  *
 384  * Enumerates DirectDraw7 drivers, ascii version. See
 385  * the comments above DirectDrawEnumerateA for more details.
 386  *
 387  * The Flag member is not supported right now.
 388  *
 389  ***********************************************************************/
 390 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA Callback, void *Context, DWORD Flags)
 391 {
 392     TRACE("callback %p, context %p, flags %#x.\n", Callback, Context, Flags);
 393
 394     if (Flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 395                   DDENUM_DETACHEDSECONDARYDEVICES |
 396                   DDENUM_NONDISPLAYDEVICES))
 397         return DDERR_INVALIDPARAMS;
 398
 399     if (Flags)
 400         FIXME("flags 0x%08x not handled\n", Flags);
 401
 402     TRACE("Enumerating default DirectDraw HAL interface\n");
 403
 404     /* We only have one driver by now */
 405     __TRY
 406     {
 407         static CHAR driver_desc[] = "DirectDraw HAL",
 408         driver_name[] = "display";
 409
 410         /* QuickTime expects the description "DirectDraw HAL" */
 411         Callback(NULL, driver_desc, driver_name, Context, 0);
 412     }
 413     __EXCEPT_PAGE_FAULT
 414     {
 415         return DDERR_INVALIDPARAMS;
 416     }
 417     __ENDTRY;
 418
 419     TRACE("End of enumeration\n");
 420     return DD_OK;
 421 }
 422
 423 /***********************************************************************
 424  * DirectDrawEnumerateW (DDRAW.@)
 425  *
 426  * Enumerates legacy drivers, unicode version.
 427  * This function is not implemented on Windows.
 428  *
 429  ***********************************************************************/
 430 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 431 {
 432     TRACE("callback %p, context %p.\n", callback, context);
 433
 434     if (!callback)
 435         return DDERR_INVALIDPARAMS;
 436     else
 437         return DDERR_UNSUPPORTED;
 438 }
 439
 440 /***********************************************************************
 441  * DirectDrawEnumerateExW (DDRAW.@)
 442  *
 443  * Enumerates DirectDraw7 drivers, unicode version.
 444  * This function is not implemented on Windows.
 445  *
 446  ***********************************************************************/
 447 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 448 {
 449     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 450
 451     return DDERR_UNSUPPORTED;
 452 }
 453
 454 /***********************************************************************
 455  * Classfactory implementation.
 456  ***********************************************************************/
 457
 458 /***********************************************************************
 459  * CF_CreateDirectDraw
 460  *
 461  * DDraw creation function for the class factory
 462  *
 463  * Params:
 464  *  UnkOuter: Set to NULL
 465  *  iid: ID of the wanted interface
 466  *  obj: Address to pass the interface pointer back
 467  *
 468  * Returns
 469  *  DD_OK / DDERR*, see DDRAW_Create
 470  *
 471  ***********************************************************************/
 472 static HRESULT
 473 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 474                     void **obj)
 475 {
 476     HRESULT hr;
 477
 478     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 479
 480     EnterCriticalSection(&ddraw_cs);
 481     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 482     LeaveCriticalSection(&ddraw_cs);
 483     return hr;
 484 }
 485
 486 /***********************************************************************
 487  * CF_CreateDirectDraw
 488  *
 489  * Clipper creation function for the class factory
 490  *
 491  * Params:
 492  *  UnkOuter: Set to NULL
 493  *  iid: ID of the wanted interface
 494  *  obj: Address to pass the interface pointer back
 495  *
 496  * Returns
 497  *  DD_OK / DDERR*, see DDRAW_Create
 498  *
 499  ***********************************************************************/
 500 static HRESULT
 501 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 502                               void **obj)
 503 {
 504     HRESULT hr;
 505     IDirectDrawClipper *Clip;
 506
 507     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 508
 509     EnterCriticalSection(&ddraw_cs);
 510     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 511     if (hr != DD_OK)
 512     {
 513         LeaveCriticalSection(&ddraw_cs);
 514         return hr;
 515     }
 516
 517     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 518     IDirectDrawClipper_Release(Clip);
 519
 520     LeaveCriticalSection(&ddraw_cs);
 521     return hr;
 522 }
 523
 524 static const struct object_creation_info object_creation[] =
 525 {
 526     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 527     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 528     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 529 };
 530
 531 /*******************************************************************************
 532  * IDirectDrawClassFactory::QueryInterface
 533  *
 534  * QueryInterface for the class factory
 535  *
 536  * PARAMS
 537  *    riid   Reference to identifier of queried interface
 538  *    ppv    Address to return the interface pointer at
 539  *
 540  * RETURNS
 541  *    Success: S_OK
 542  *    Failure: E_NOINTERFACE
 543  *
 544  *******************************************************************************/
 545 static HRESULT WINAPI
 546 IDirectDrawClassFactoryImpl_QueryInterface(IClassFactory *iface,
 547                     REFIID riid,
 548                     void **obj)
 549 {
 550     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 551
 552     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 553
 554     if (IsEqualGUID(riid, &IID_IUnknown)
 555         || IsEqualGUID(riid, &IID_IClassFactory))
 556     {
 557         IClassFactory_AddRef(iface);
 558         *obj = This;
 559         return S_OK;
 560     }
 561
 562     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),obj);
 563     return E_NOINTERFACE;
 564 }
 565
 566 /*******************************************************************************
 567  * IDirectDrawClassFactory::AddRef
 568  *
 569  * AddRef for the class factory
 570  *
 571  * RETURNS
 572  *  The new refcount
 573  *
 574  *******************************************************************************/
 575 static ULONG WINAPI
 576 IDirectDrawClassFactoryImpl_AddRef(IClassFactory *iface)
 577 {
 578     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 579     ULONG ref = InterlockedIncrement(&This->ref);
 580
 581     TRACE("%p increasing refcount to %u.\n", This, ref);
 582
 583     return ref;
 584 }
 585
 586 /*******************************************************************************
 587  * IDirectDrawClassFactory::Release
 588  *
 589  * Release for the class factory. If the refcount falls to 0, the object
 590  * is destroyed
 591  *
 592  * RETURNS
 593  *  The new refcount
 594  *
 595  *******************************************************************************/
 596 static ULONG WINAPI
 597 IDirectDrawClassFactoryImpl_Release(IClassFactory *iface)
 598 {
 599     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 600     ULONG ref = InterlockedDecrement(&This->ref);
 601
 602     TRACE("%p decreasing refcount to %u.\n", This, ref);
 603
 604     if (ref == 0)
 605         HeapFree(GetProcessHeap(), 0, This);
 606
 607     return ref;
 608 }
 609
 610
 611 /*******************************************************************************
 612  * IDirectDrawClassFactory::CreateInstance
 613  *
 614  * What is this? Seems to create DirectDraw objects...
 615  *
 616  * Params
 617  *  The usual things???
 618  *
 619  * RETURNS
 620  *  ???
 621  *
 622  *******************************************************************************/
 623 static HRESULT WINAPI
 624 IDirectDrawClassFactoryImpl_CreateInstance(IClassFactory *iface,
 625                                            IUnknown *UnkOuter,
 626                                            REFIID riid,
 627                                            void **obj)
 628 {
 629     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 630
 631     TRACE("iface %p, outer_unknown %p, riid %s, object %p.\n",
 632             iface, UnkOuter, debugstr_guid(riid), obj);
 633
 634     return This->pfnCreateInstance(UnkOuter, riid, obj);
 635 }
 636
 637 /*******************************************************************************
 638  * IDirectDrawClassFactory::LockServer
 639  *
 640  * What is this?
 641  *
 642  * Params
 643  *  ???
 644  *
 645  * RETURNS
 646  *  S_OK, because it's a stub
 647  *
 648  *******************************************************************************/
 649 static HRESULT WINAPI IDirectDrawClassFactoryImpl_LockServer(IClassFactory *iface, BOOL dolock)
 650 {
 651     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 652
 653     return S_OK;
 654 }
 655
 656 /*******************************************************************************
 657  * The class factory VTable
 658  *******************************************************************************/
 659 static const IClassFactoryVtbl IClassFactory_Vtbl =
 660 {
 661     IDirectDrawClassFactoryImpl_QueryInterface,
 662     IDirectDrawClassFactoryImpl_AddRef,
 663     IDirectDrawClassFactoryImpl_Release,
 664     IDirectDrawClassFactoryImpl_CreateInstance,
 665     IDirectDrawClassFactoryImpl_LockServer
 666 };
 667
 668 /*******************************************************************************
 669  * DllGetClassObject [DDRAW.@]
 670  * Retrieves class object from a DLL object
 671  *
 672  * NOTES
 673  *    Docs say returns STDAPI
 674  *
 675  * PARAMS
 676  *    rclsid [I] CLSID for the class object
 677  *    riid   [I] Reference to identifier of interface for class object
 678  *    ppv    [O] Address of variable to receive interface pointer for riid
 679  *
 680  * RETURNS
 681  *    Success: S_OK
 682  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 683  *             E_UNEXPECTED
 684  */
 685 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 686 {
 687     unsigned int i;
 688     IClassFactoryImpl *factory;
 689
 690     TRACE("rclsid %s, riid %s, object %p.\n",
 691             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 692
 693     if (!IsEqualGUID(&IID_IClassFactory, riid)
 694             && !IsEqualGUID(&IID_IUnknown, riid))
 695         return E_NOINTERFACE;
 696
 697     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 698     {
 699         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 700             break;
 701     }
 702
 703     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 704     {
 705         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 706         return CLASS_E_CLASSNOTAVAILABLE;
 707     }
 708
 709     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
 710     if (factory == NULL) return E_OUTOFMEMORY;
 711
 712     factory->lpVtbl = &IClassFactory_Vtbl;
 713     factory->ref = 1;
 714
 715     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 716
 717     *ppv = factory;
 718     return S_OK;
 719 }
 720
 721
 722 /*******************************************************************************
 723  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 724  *
 725  * RETURNS
 726  *    Success: S_OK
 727  *    Failure: S_FALSE
 728  */
 729 HRESULT WINAPI DllCanUnloadNow(void)
 730 {
 731     TRACE("\n");
 732
 733     return S_FALSE;
 734 }
 735
 736
 737 /***********************************************************************
 738  *              DllRegisterServer (DDRAW.@)
 739  */
 740 HRESULT WINAPI DllRegisterServer(void)
 741 {
 742     return __wine_register_resources( instance, NULL );
 743 }
 744
 745 /***********************************************************************
 746  *              DllUnregisterServer (DDRAW.@)
 747  */
 748 HRESULT WINAPI DllUnregisterServer(void)
 749 {
 750     return __wine_unregister_resources( instance, NULL );
 751 }
 752
 753 /*******************************************************************************
 754  * DestroyCallback
 755  *
 756  * Callback function for the EnumSurfaces call in DllMain.
 757  * Dumps some surface info and releases the surface
 758  *
 759  * Params:
 760  *  surf: The enumerated surface
 761  *  desc: it's description
 762  *  context: Pointer to the ddraw impl
 763  *
 764  * Returns:
 765  *  DDENUMRET_OK;
 766  *******************************************************************************/
 767 static HRESULT WINAPI
 768 DestroyCallback(IDirectDrawSurface7 *surf,
 769                 DDSURFACEDESC2 *desc,
 770                 void *context)
 771 {
 772     IDirectDrawSurfaceImpl *Impl = (IDirectDrawSurfaceImpl *)surf;
 773     ULONG ref;
 774
 775     ref = IDirectDrawSurface7_Release(surf);  /* For the EnumSurfaces */
 776     WARN("Surface %p has an reference count of %d\n", Impl, ref);
 777
 778     /* Skip surfaces which are attached somewhere or which are
 779      * part of a complex compound. They will get released when destroying
 780      * the root
 781      */
 782     if( (!Impl->is_complex_root) || (Impl->first_attached != Impl) )
 783         return DDENUMRET_OK;
 784
 785     /* Destroy the surface */
 786     while(ref) ref = IDirectDrawSurface7_Release(surf);
 787
 788     return DDENUMRET_OK;
 789 }
 790
 791 /***********************************************************************
 792  * get_config_key
 793  *
 794  * Reads a config key from the registry. Taken from WineD3D
 795  *
 796  ***********************************************************************/
 797 static inline DWORD get_config_key(HKEY defkey, HKEY appkey, const char* name, char* buffer, DWORD size)
 798 {
 799     if (0 != appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 800     if (0 != defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 801     return ERROR_FILE_NOT_FOUND;
 802 }
 803
 804 /***********************************************************************
 805  * DllMain (DDRAW.0)
 806  *
 807  * Could be used to register DirectDraw drivers, if we have more than
 808  * one. Also used to destroy any objects left at unload if the
 809  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
 810  *
 811  ***********************************************************************/
 812 BOOL WINAPI
 813 DllMain(HINSTANCE hInstDLL,
 814         DWORD Reason,
 815         LPVOID lpv)
 816 {
 817     TRACE("(%p,%x,%p)\n", hInstDLL, Reason, lpv);
 818     if (Reason == DLL_PROCESS_ATTACH)
 819     {
 820         char buffer[MAX_PATH+10];
 821         DWORD size = sizeof(buffer);
 822         HKEY hkey = 0;
 823         HKEY appkey = 0;
 824         WNDCLASSA wc;
 825         DWORD len;
 826
 827         /* Register the window class. This is used to create a hidden window
 828          * for D3D rendering, if the application didn't pass one. It can also
 829          * be used for creating a device window from SetCooperativeLevel(). */
 830         wc.style = CS_HREDRAW | CS_VREDRAW;
 831         wc.lpfnWndProc = DefWindowProcA;
 832         wc.cbClsExtra = 0;
 833         wc.cbWndExtra = 0;
 834         wc.hInstance = hInstDLL;
 835         wc.hIcon = 0;
 836         wc.hCursor = 0;
 837         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
 838         wc.lpszMenuName = NULL;
 839         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
 840         if (!RegisterClassA(&wc))
 841         {
 842             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
 843             return FALSE;
 844         }
 845
 846        /* @@ Wine registry key: HKCU\Software\Wine\Direct3D */
 847        if ( RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Direct3D", &hkey ) ) hkey = 0;
 848
 849        len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 850        if (len && len < MAX_PATH)
 851        {
 852             HKEY tmpkey;
 853             /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Direct3D */
 854             if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 855             {
 856                 char *p, *appname = buffer;
 857                 if ((p = strrchr( appname, '/' ))) appname = p + 1;
 858                 if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 859                 strcat( appname, "\\Direct3D" );
 860                 TRACE("appname = [%s]\n", appname);
 861                 if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 862                 RegCloseKey( tmpkey );
 863             }
 864        }
 865
 866        if ( 0 != hkey || 0 != appkey )
 867        {
 868             if ( !get_config_key( hkey, appkey, "DirectDrawRenderer", buffer, size) )
 869             {
 870                 if (!strcmp(buffer,"gdi"))
 871                 {
 872                     TRACE("Defaulting to GDI surfaces\n");
 873                     DefaultSurfaceType = SURFACE_GDI;
 874                 }
 875                 else if (!strcmp(buffer,"opengl"))
 876                 {
 877                     TRACE("Defaulting to opengl surfaces\n");
 878                     DefaultSurfaceType = SURFACE_OPENGL;
 879                 }
 880                 else
 881                 {
 882                     ERR("Unknown default surface type. Supported are:\n gdi, opengl\n");
 883                 }
 884             }
 885         }
 886
 887         /* On Windows one can force the refresh rate that DirectDraw uses by
 888          * setting an override value in dxdiag.  This is documented in KB315614
 889          * (main article), KB230002, and KB217348.  By comparing registry dumps
 890          * before and after setting the override, we see that the override value
 891          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
 892          * DWORD that represents the refresh rate to force.  We use this
 893          * registry entry to modify the behavior of SetDisplayMode so that Wine
 894          * users can override the refresh rate in a Windows-compatible way.
 895          *
 896          * dxdiag will not accept a refresh rate lower than 40 or higher than
 897          * 120 so this value should be within that range.  It is, of course,
 898          * possible for a user to set the registry entry value directly so that
 899          * assumption might not hold.
 900          *
 901          * There is no current mechanism for setting this value through the Wine
 902          * GUI.  It would be most appropriate to set this value through a dxdiag
 903          * clone, but it may be sufficient to use winecfg.
 904          *
 905          * TODO: Create a mechanism for setting this value through the Wine GUI.
 906          */
 907         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
 908         {
 909             DWORD type, data;
 910             size = sizeof(data);
 911             if (!RegQueryValueExA( hkey, "ForceRefreshRate", NULL, &type, (LPBYTE)&data, &size ) && type == REG_DWORD)
 912             {
 913                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
 914                 force_refresh_rate = data;
 915             }
 916             RegCloseKey( hkey );
 917         }
 918
 919         instance = hInstDLL;
 920         DisableThreadLibraryCalls(hInstDLL);
 921     }
 922     else if (Reason == DLL_PROCESS_DETACH)
 923     {
 924         if(!list_empty(&global_ddraw_list))
 925         {
 926             struct list *entry, *entry2;
 927             WARN("There are still existing DirectDraw interfaces. Wine bug or buggy application?\n");
 928
 929             /* We remove elements from this loop */
 930             LIST_FOR_EACH_SAFE(entry, entry2, &global_ddraw_list)
 931             {
 932                 HRESULT hr;
 933                 DDSURFACEDESC2 desc;
 934                 int i;
 935                 IDirectDrawImpl *ddraw = LIST_ENTRY(entry, IDirectDrawImpl, ddraw_list_entry);
 936
 937                 WARN("DDraw %p has a refcount of %d\n", ddraw, ddraw->ref7 + ddraw->ref4 + ddraw->ref3 + ddraw->ref2 + ddraw->ref1);
 938
 939                 /* Add references to each interface to avoid freeing them unexpectedly */
 940                 IDirectDraw_AddRef(&ddraw->IDirectDraw_iface);
 941                 IDirectDraw2_AddRef(&ddraw->IDirectDraw2_iface);
 942                 IDirectDraw3_AddRef(&ddraw->IDirectDraw3_iface);
 943                 IDirectDraw4_AddRef((IDirectDraw4 *)&ddraw->IDirectDraw4_vtbl);
 944                 IDirectDraw7_AddRef((IDirectDraw7 *)ddraw);
 945
 946                 /* Does a D3D device exist? Destroy it
 947                     * TODO: Destroy all Vertex buffers, Lights, Materials
 948                     * and execute buffers too
 949                     */
 950                 if(ddraw->d3ddevice)
 951                 {
 952                     WARN("DDraw %p has d3ddevice %p attached\n", ddraw, ddraw->d3ddevice);
 953                     while(IDirect3DDevice7_Release((IDirect3DDevice7 *)ddraw->d3ddevice));
 954                 }
 955
 956                 /* Try to release the objects
 957                     * Do an EnumSurfaces to find any hanging surfaces
 958                     */
 959                 memset(&desc, 0, sizeof(desc));
 960                 desc.dwSize = sizeof(desc);
 961                 for(i = 0; i <= 1; i++)
 962                 {
 963                     hr = IDirectDraw7_EnumSurfaces((IDirectDraw7 *)ddraw,
 964                             DDENUMSURFACES_ALL, &desc, ddraw, DestroyCallback);
 965                     if(hr != D3D_OK)
 966                         ERR("(%p) EnumSurfaces failed, prepare for trouble\n", ddraw);
 967                 }
 968
 969                 /* Check the surface count */
 970                 if(ddraw->surfaces > 0)
 971                     ERR("DDraw %p still has %d surfaces attached\n", ddraw, ddraw->surfaces);
 972
 973                 /* Release all hanging references to destroy the objects. This
 974                     * restores the screen mode too
 975                     */
 976                 while(IDirectDraw_Release(&ddraw->IDirectDraw_iface));
 977                 while(IDirectDraw2_Release(&ddraw->IDirectDraw2_iface));
 978                 while(IDirectDraw3_Release(&ddraw->IDirectDraw3_iface));
 979                 while(IDirectDraw4_Release((IDirectDraw4 *)&ddraw->IDirectDraw4_vtbl));
 980                 while(IDirectDraw7_Release((IDirectDraw7 *)ddraw));
 981             }
 982         }
 983
 984         /* Unregister the window class. */
 985         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, hInstDLL);
 986     }
 987
 988     return TRUE;
 989 }