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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 enum wined3d_surface_type DefaultSurfaceType = WINED3D_SURFACE_TYPE_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     enum wined3d_device_type device_type;
 190     struct ddraw *ddraw;
 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         device_type = WINED3D_DEVICE_TYPE_REF;
 208     }
 209     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
 210     {
 211         device_type = WINED3D_DEVICE_TYPE_HAL;
 212     }
 213     else
 214     {
 215         device_type = 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     ddraw = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ddraw));
 224     if (!ddraw)
 225     {
 226         ERR("Out of memory when creating DirectDraw\n");
 227         return E_OUTOFMEMORY;
 228     }
 229
 230     hr = ddraw_init(ddraw, device_type);
 231     if (FAILED(hr))
 232     {
 233         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 234         HeapFree(GetProcessHeap(), 0, ddraw);
 235         return hr;
 236     }
 237
 238     hr = IDirectDraw7_QueryInterface(&ddraw->IDirectDraw7_iface, iid, DD);
 239     IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
 240     if (SUCCEEDED(hr))
 241         list_add_head(&global_ddraw_list, &ddraw->ddraw_list_entry);
 242     else
 243         WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), ddraw);
 244
 245     return hr;
 246 }
 247
 248 /***********************************************************************
 249  * DirectDrawCreate (DDRAW.@)
 250  *
 251  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 252  * interfaces in theory
 253  *
 254  * Arguments, return values: See DDRAW_Create
 255  *
 256  ***********************************************************************/
 257 HRESULT WINAPI DECLSPEC_HOTPATCH
 258 DirectDrawCreate(GUID *GUID,
 259                  LPDIRECTDRAW *DD,
 260                  IUnknown *UnkOuter)
 261 {
 262     HRESULT hr;
 263
 264     TRACE("driver_guid %s, ddraw %p, outer_unknown %p.\n",
 265             debugstr_guid(GUID), DD, UnkOuter);
 266
 267     wined3d_mutex_lock();
 268     hr = DDRAW_Create(GUID, (void **) DD, UnkOuter, &IID_IDirectDraw);
 269     wined3d_mutex_unlock();
 270
 271     if (SUCCEEDED(hr))
 272     {
 273         hr = IDirectDraw_Initialize(*DD, GUID);
 274         if (FAILED(hr))
 275             IDirectDraw_Release(*DD);
 276     }
 277
 278     return hr;
 279 }
 280
 281 /***********************************************************************
 282  * DirectDrawCreateEx (DDRAW.@)
 283  *
 284  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 285  * interfaces are requested.
 286  *
 287  * Arguments, return values: See DDRAW_Create
 288  *
 289  ***********************************************************************/
 290 HRESULT WINAPI DECLSPEC_HOTPATCH
 291 DirectDrawCreateEx(GUID *guid,
 292                    LPVOID *dd,
 293                    REFIID iid,
 294                    IUnknown *UnkOuter)
 295 {
 296     HRESULT hr;
 297
 298     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer_unknown %p.\n",
 299             debugstr_guid(guid), dd, debugstr_guid(iid), UnkOuter);
 300
 301     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 302         return DDERR_INVALIDPARAMS;
 303
 304     wined3d_mutex_lock();
 305     hr = DDRAW_Create(guid, dd, UnkOuter, iid);
 306     wined3d_mutex_unlock();
 307
 308     if (SUCCEEDED(hr))
 309     {
 310         IDirectDraw7 *ddraw7 = *(IDirectDraw7 **)dd;
 311         hr = IDirectDraw7_Initialize(ddraw7, guid);
 312         if (FAILED(hr))
 313             IDirectDraw7_Release(ddraw7);
 314     }
 315
 316     return hr;
 317 }
 318
 319 /***********************************************************************
 320  * DirectDrawEnumerateA (DDRAW.@)
 321  *
 322  * Enumerates legacy ddraw drivers, ascii version. We only have one
 323  * driver, which relays to WineD3D. If we were sufficiently cool,
 324  * we could offer various interfaces, which use a different default surface
 325  * implementation, but I think it's better to offer this choice in
 326  * winecfg, because some apps use the default driver, so we would need
 327  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 328  *
 329  * Arguments:
 330  *  Callback: Callback function from the app
 331  *  Context: Argument to the call back.
 332  *
 333  * Returns:
 334  *  DD_OK on success
 335  *  E_INVALIDARG if the Callback caused a page fault
 336  *
 337  *
 338  ***********************************************************************/
 339 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA Callback, void *Context)
 340 {
 341     TRACE("callback %p, context %p.\n", Callback, Context);
 342
 343     TRACE(" Enumerating default DirectDraw HAL interface\n");
 344     /* We only have one driver */
 345     __TRY
 346     {
 347         static CHAR driver_desc[] = "DirectDraw HAL",
 348         driver_name[] = "display";
 349
 350         Callback(NULL, driver_desc, driver_name, Context);
 351     }
 352     __EXCEPT_PAGE_FAULT
 353     {
 354         return DDERR_INVALIDPARAMS;
 355     }
 356     __ENDTRY
 357
 358     TRACE(" End of enumeration\n");
 359     return DD_OK;
 360 }
 361
 362 /***********************************************************************
 363  * DirectDrawEnumerateExA (DDRAW.@)
 364  *
 365  * Enumerates DirectDraw7 drivers, ascii version. See
 366  * the comments above DirectDrawEnumerateA for more details.
 367  *
 368  * The Flag member is not supported right now.
 369  *
 370  ***********************************************************************/
 371 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA Callback, void *Context, DWORD Flags)
 372 {
 373     TRACE("callback %p, context %p, flags %#x.\n", Callback, Context, Flags);
 374
 375     if (Flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 376                   DDENUM_DETACHEDSECONDARYDEVICES |
 377                   DDENUM_NONDISPLAYDEVICES))
 378         return DDERR_INVALIDPARAMS;
 379
 380     if (Flags)
 381         FIXME("flags 0x%08x not handled\n", Flags);
 382
 383     TRACE("Enumerating default DirectDraw HAL interface\n");
 384
 385     /* We only have one driver by now */
 386     __TRY
 387     {
 388         static CHAR driver_desc[] = "DirectDraw HAL",
 389         driver_name[] = "display";
 390
 391         /* QuickTime expects the description "DirectDraw HAL" */
 392         Callback(NULL, driver_desc, driver_name, Context, 0);
 393     }
 394     __EXCEPT_PAGE_FAULT
 395     {
 396         return DDERR_INVALIDPARAMS;
 397     }
 398     __ENDTRY;
 399
 400     TRACE("End of enumeration\n");
 401     return DD_OK;
 402 }
 403
 404 /***********************************************************************
 405  * DirectDrawEnumerateW (DDRAW.@)
 406  *
 407  * Enumerates legacy drivers, unicode version.
 408  * This function is not implemented on Windows.
 409  *
 410  ***********************************************************************/
 411 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 412 {
 413     TRACE("callback %p, context %p.\n", callback, context);
 414
 415     if (!callback)
 416         return DDERR_INVALIDPARAMS;
 417     else
 418         return DDERR_UNSUPPORTED;
 419 }
 420
 421 /***********************************************************************
 422  * DirectDrawEnumerateExW (DDRAW.@)
 423  *
 424  * Enumerates DirectDraw7 drivers, unicode version.
 425  * This function is not implemented on Windows.
 426  *
 427  ***********************************************************************/
 428 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 429 {
 430     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 431
 432     return DDERR_UNSUPPORTED;
 433 }
 434
 435 /***********************************************************************
 436  * Classfactory implementation.
 437  ***********************************************************************/
 438
 439 /***********************************************************************
 440  * CF_CreateDirectDraw
 441  *
 442  * DDraw creation function for the class factory
 443  *
 444  * Params:
 445  *  UnkOuter: Set to NULL
 446  *  iid: ID of the wanted interface
 447  *  obj: Address to pass the interface pointer back
 448  *
 449  * Returns
 450  *  DD_OK / DDERR*, see DDRAW_Create
 451  *
 452  ***********************************************************************/
 453 static HRESULT
 454 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 455                     void **obj)
 456 {
 457     HRESULT hr;
 458
 459     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 460
 461     wined3d_mutex_lock();
 462     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 463     wined3d_mutex_unlock();
 464
 465     return hr;
 466 }
 467
 468 /***********************************************************************
 469  * CF_CreateDirectDraw
 470  *
 471  * Clipper creation function for the class factory
 472  *
 473  * Params:
 474  *  UnkOuter: Set to NULL
 475  *  iid: ID of the wanted interface
 476  *  obj: Address to pass the interface pointer back
 477  *
 478  * Returns
 479  *  DD_OK / DDERR*, see DDRAW_Create
 480  *
 481  ***********************************************************************/
 482 static HRESULT
 483 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 484                               void **obj)
 485 {
 486     HRESULT hr;
 487     IDirectDrawClipper *Clip;
 488
 489     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 490
 491     wined3d_mutex_lock();
 492     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 493     if (hr != DD_OK)
 494     {
 495         wined3d_mutex_unlock();
 496         return hr;
 497     }
 498
 499     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 500     IDirectDrawClipper_Release(Clip);
 501
 502     wined3d_mutex_unlock();
 503
 504     return hr;
 505 }
 506
 507 static const struct object_creation_info object_creation[] =
 508 {
 509     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 510     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 511     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 512 };
 513
 514
 515 /******************************************************************************
 516  * DirectDraw ClassFactory implementation
 517  ******************************************************************************/
 518 typedef struct
 519 {
 520     IClassFactory IClassFactory_iface;
 521
 522     LONG ref;
 523     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID iid, LPVOID *ppObj);
 524 } IClassFactoryImpl;
 525
 526 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 527 {
 528     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 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 IDirectDrawClassFactoryImpl_QueryInterface(IClassFactory *iface, REFIID riid,
 546         void **obj)
 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 = iface;
 555         return S_OK;
 556     }
 557
 558     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
 559
 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 IDirectDrawClassFactoryImpl_AddRef(IClassFactory *iface)
 573 {
 574     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 575     ULONG ref = InterlockedIncrement(&This->ref);
 576
 577     TRACE("%p increasing refcount to %u.\n", This, ref);
 578
 579     return ref;
 580 }
 581
 582 /*******************************************************************************
 583  * IDirectDrawClassFactory::Release
 584  *
 585  * Release for the class factory. If the refcount falls to 0, the object
 586  * is destroyed
 587  *
 588  * RETURNS
 589  *  The new refcount
 590  *
 591  *******************************************************************************/
 592 static ULONG WINAPI IDirectDrawClassFactoryImpl_Release(IClassFactory *iface)
 593 {
 594     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 595     ULONG ref = InterlockedDecrement(&This->ref);
 596
 597     TRACE("%p decreasing refcount to %u.\n", This, ref);
 598
 599     if (ref == 0)
 600         HeapFree(GetProcessHeap(), 0, This);
 601
 602     return ref;
 603 }
 604
 605
 606 /*******************************************************************************
 607  * IDirectDrawClassFactory::CreateInstance
 608  *
 609  * What is this? Seems to create DirectDraw objects...
 610  *
 611  * Params
 612  *  The usual things???
 613  *
 614  * RETURNS
 615  *  ???
 616  *
 617  *******************************************************************************/
 618 static HRESULT WINAPI IDirectDrawClassFactoryImpl_CreateInstance(IClassFactory *iface,
 619         IUnknown *UnkOuter, REFIID riid, void **obj)
 620 {
 621     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 622
 623     TRACE("iface %p, outer_unknown %p, riid %s, object %p.\n",
 624             iface, UnkOuter, debugstr_guid(riid), obj);
 625
 626     return This->pfnCreateInstance(UnkOuter, riid, obj);
 627 }
 628
 629 /*******************************************************************************
 630  * IDirectDrawClassFactory::LockServer
 631  *
 632  * What is this?
 633  *
 634  * Params
 635  *  ???
 636  *
 637  * RETURNS
 638  *  S_OK, because it's a stub
 639  *
 640  *******************************************************************************/
 641 static HRESULT WINAPI IDirectDrawClassFactoryImpl_LockServer(IClassFactory *iface, BOOL dolock)
 642 {
 643     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 644
 645     return S_OK;
 646 }
 647
 648 /*******************************************************************************
 649  * The class factory VTable
 650  *******************************************************************************/
 651 static const IClassFactoryVtbl IClassFactory_Vtbl =
 652 {
 653     IDirectDrawClassFactoryImpl_QueryInterface,
 654     IDirectDrawClassFactoryImpl_AddRef,
 655     IDirectDrawClassFactoryImpl_Release,
 656     IDirectDrawClassFactoryImpl_CreateInstance,
 657     IDirectDrawClassFactoryImpl_LockServer
 658 };
 659
 660 /*******************************************************************************
 661  * DllGetClassObject [DDRAW.@]
 662  * Retrieves class object from a DLL object
 663  *
 664  * NOTES
 665  *    Docs say returns STDAPI
 666  *
 667  * PARAMS
 668  *    rclsid [I] CLSID for the class object
 669  *    riid   [I] Reference to identifier of interface for class object
 670  *    ppv    [O] Address of variable to receive interface pointer for riid
 671  *
 672  * RETURNS
 673  *    Success: S_OK
 674  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 675  *             E_UNEXPECTED
 676  */
 677 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 678 {
 679     unsigned int i;
 680     IClassFactoryImpl *factory;
 681
 682     TRACE("rclsid %s, riid %s, object %p.\n",
 683             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 684
 685     if (!IsEqualGUID(&IID_IClassFactory, riid)
 686             && !IsEqualGUID(&IID_IUnknown, riid))
 687         return E_NOINTERFACE;
 688
 689     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 690     {
 691         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 692             break;
 693     }
 694
 695     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 696     {
 697         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 698         return CLASS_E_CLASSNOTAVAILABLE;
 699     }
 700
 701     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
 702     if (factory == NULL) return E_OUTOFMEMORY;
 703
 704     factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
 705     factory->ref = 1;
 706
 707     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 708
 709     *ppv = factory;
 710     return S_OK;
 711 }
 712
 713
 714 /*******************************************************************************
 715  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 716  *
 717  * RETURNS
 718  *    Success: S_OK
 719  *    Failure: S_FALSE
 720  */
 721 HRESULT WINAPI DllCanUnloadNow(void)
 722 {
 723     TRACE("\n");
 724
 725     return S_FALSE;
 726 }
 727
 728
 729 /***********************************************************************
 730  *              DllRegisterServer (DDRAW.@)
 731  */
 732 HRESULT WINAPI DllRegisterServer(void)
 733 {
 734     return __wine_register_resources( instance );
 735 }
 736
 737 /***********************************************************************
 738  *              DllUnregisterServer (DDRAW.@)
 739  */
 740 HRESULT WINAPI DllUnregisterServer(void)
 741 {
 742     return __wine_unregister_resources( instance );
 743 }
 744
 745 /*******************************************************************************
 746  * DestroyCallback
 747  *
 748  * Callback function for the EnumSurfaces call in DllMain.
 749  * Dumps some surface info and releases the surface
 750  *
 751  * Params:
 752  *  surf: The enumerated surface
 753  *  desc: it's description
 754  *  context: Pointer to the ddraw impl
 755  *
 756  * Returns:
 757  *  DDENUMRET_OK;
 758  *******************************************************************************/
 759 static HRESULT WINAPI
 760 DestroyCallback(IDirectDrawSurface7 *surf,
 761                 DDSURFACEDESC2 *desc,
 762                 void *context)
 763 {
 764     struct ddraw_surface *Impl = impl_from_IDirectDrawSurface7(surf);
 765     ULONG ref7, ref4, ref3, ref2, ref1, gamma_count, iface_count;
 766
 767     ref7 = IDirectDrawSurface7_Release(surf);  /* For the EnumSurfaces */
 768     ref4 = Impl->ref4;
 769     ref3 = Impl->ref3;
 770     ref2 = Impl->ref2;
 771     ref1 = Impl->ref1;
 772     gamma_count = Impl->gamma_count;
 773
 774     WARN("Surface %p has an reference counts of 7: %u 4: %u 3: %u 2: %u 1: %u gamma: %u\n",
 775             Impl, ref7, ref4, ref3, ref2, ref1, gamma_count);
 776
 777     /* Skip surfaces which are attached somewhere or which are
 778      * part of a complex compound. They will get released when destroying
 779      * the root
 780      */
 781     if( (!Impl->is_complex_root) || (Impl->first_attached != Impl) )
 782         return DDENUMRET_OK;
 783
 784     /* Destroy the surface */
 785     iface_count = ddraw_surface_release_iface(Impl);
 786     while (iface_count) iface_count = ddraw_surface_release_iface(Impl);
 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 = WINED3D_SURFACE_TYPE_GDI;
 874                 }
 875                 else if (!strcmp(buffer,"opengl"))
 876                 {
 877                     TRACE("Defaulting to opengl surfaces\n");
 878                     DefaultSurfaceType = WINED3D_SURFACE_TYPE_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                 struct ddraw *ddraw = LIST_ENTRY(entry, struct ddraw, ddraw_list_entry);
 933                 HRESULT hr;
 934                 DDSURFACEDESC2 desc;
 935                 int i;
 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                 IDirectDraw4_AddRef(&ddraw->IDirectDraw4_iface);
 943                 IDirectDraw7_AddRef(&ddraw->IDirectDraw7_iface);
 944
 945                 /* Does a D3D device exist? Destroy it
 946                     * TODO: Destroy all Vertex buffers, Lights, Materials
 947                     * and execute buffers too
 948                     */
 949                 if(ddraw->d3ddevice)
 950                 {
 951                     WARN("DDraw %p has d3ddevice %p attached\n", ddraw, ddraw->d3ddevice);
 952                     while(IDirect3DDevice7_Release(&ddraw->d3ddevice->IDirect3DDevice7_iface));
 953                 }
 954
 955                 /* Destroy the swapchain after any 3D device. The 3D device
 956                  * cleanup code needs a swapchain. Specifically, it tries to
 957                  * set the current render target to the front buffer. */
 958                 if (ddraw->wined3d_swapchain)
 959                     ddraw_destroy_swapchain(ddraw);
 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 }