dlls/ddraw/main.c

   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 library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wine/port.h"
  26
  27 #define DDRAW_INIT_GUID
  28 #include "ddraw_private.h"
  29 #include "rpcproxy.h"
  30
  31 #include "wine/exception.h"
  32 #include "winreg.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  35
  36 static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
  37
  38 static HINSTANCE instance;
  39
  40 /* value of ForceRefreshRate */
  41 DWORD force_refresh_rate = 0;
  42
  43 /* Structure for converting DirectDrawEnumerateA to DirectDrawEnumerateExA */
  44 struct callback_info
  45 {
  46     LPDDENUMCALLBACKA callback;
  47     void *context;
  48 };
  49
  50 /* Enumeration callback for converting DirectDrawEnumerateA to DirectDrawEnumerateExA */
  51 static BOOL CALLBACK enum_callback(GUID *guid, char *description, char *driver_name,
  52                                       void *context, HMONITOR monitor)
  53 {
  54     const struct callback_info *info = context;
  55
  56     return info->callback(guid, description, driver_name, info->context);
  57 }
  58
  59 static void ddraw_enumerate_secondary_devices(struct wined3d *wined3d, LPDDENUMCALLBACKEXA callback,
  60                                               void *context)
  61 {
  62     struct wined3d_adapter_identifier adapter_id;
  63     struct wined3d_output_desc output_desc;
  64     BOOL cont_enum = TRUE;
  65     HRESULT hr = S_OK;
  66     UINT adapter = 0;
  67
  68     for (adapter = 0; SUCCEEDED(hr) && cont_enum; adapter++)
  69     {
  70         char DriverName[512] = "", DriverDescription[512] = "";
  71
  72         /* The Battle.net System Checker expects the GetAdapterIdentifier DeviceName to match the
  73          * Driver Name, so obtain the DeviceName and GUID from D3D. */
  74         memset(&adapter_id, 0x0, sizeof(adapter_id));
  75         adapter_id.device_name = DriverName;
  76         adapter_id.device_name_size = sizeof(DriverName);
  77         adapter_id.description = DriverDescription;
  78         adapter_id.description_size = sizeof(DriverDescription);
  79         wined3d_mutex_lock();
  80         if (SUCCEEDED(hr = wined3d_get_adapter_identifier(wined3d, adapter, 0x0, &adapter_id)))
  81             hr = wined3d_get_output_desc(wined3d, adapter, &output_desc);
  82         wined3d_mutex_unlock();
  83         if (SUCCEEDED(hr))
  84         {
  85             TRACE("Interface %d: %s\n", adapter, wine_dbgstr_guid(&adapter_id.device_identifier));
  86             cont_enum = callback(&adapter_id.device_identifier, adapter_id.description,
  87                     adapter_id.device_name, context, output_desc.monitor);
  88         }
  89     }
  90 }
  91
  92 /* Handle table functions */
  93 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
  94 {
  95     t->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, initial_size * sizeof(*t->entries));
  96     if (!t->entries)
  97     {
  98         ERR("Failed to allocate handle table memory.\n");
  99         return FALSE;
 100     }
 101     t->free_entries = NULL;
 102     t->table_size = initial_size;
 103     t->entry_count = 0;
 104
 105     return TRUE;
 106 }
 107
 108 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
 109 {
 110     HeapFree(GetProcessHeap(), 0, t->entries);
 111     memset(t, 0, sizeof(*t));
 112 }
 113
 114 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
 115 {
 116     struct ddraw_handle_entry *entry;
 117
 118     if (t->free_entries)
 119     {
 120         DWORD idx = t->free_entries - t->entries;
 121         /* Use a free handle */
 122         entry = t->free_entries;
 123         if (entry->type != DDRAW_HANDLE_FREE)
 124         {
 125             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
 126             return DDRAW_INVALID_HANDLE;
 127         }
 128         t->free_entries = entry->object;
 129         entry->object = object;
 130         entry->type = type;
 131
 132         return idx;
 133     }
 134
 135     if (!(t->entry_count < t->table_size))
 136     {
 137         /* Grow the table */
 138         UINT new_size = t->table_size + (t->table_size >> 1);
 139         struct ddraw_handle_entry *new_entries = HeapReAlloc(GetProcessHeap(),
 140                 0, t->entries, new_size * sizeof(*t->entries));
 141         if (!new_entries)
 142         {
 143             ERR("Failed to grow the handle table.\n");
 144             return DDRAW_INVALID_HANDLE;
 145         }
 146         t->entries = new_entries;
 147         t->table_size = new_size;
 148     }
 149
 150     entry = &t->entries[t->entry_count];
 151     entry->object = object;
 152     entry->type = type;
 153
 154     return t->entry_count++;
 155 }
 156
 157 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 158 {
 159     struct ddraw_handle_entry *entry;
 160     void *object;
 161
 162     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 163     {
 164         WARN("Invalid handle %#x passed.\n", handle);
 165         return NULL;
 166     }
 167
 168     entry = &t->entries[handle];
 169     if (entry->type != type)
 170     {
 171         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 172         return NULL;
 173     }
 174
 175     object = entry->object;
 176     entry->object = t->free_entries;
 177     entry->type = DDRAW_HANDLE_FREE;
 178     t->free_entries = entry;
 179
 180     return object;
 181 }
 182
 183 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 184 {
 185     struct ddraw_handle_entry *entry;
 186
 187     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 188     {
 189         WARN("Invalid handle %#x passed.\n", handle);
 190         return NULL;
 191     }
 192
 193     entry = &t->entries[handle];
 194     if (entry->type != type)
 195     {
 196         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 197         return NULL;
 198     }
 199
 200     return entry->object;
 201 }
 202
 203 HRESULT WINAPI GetSurfaceFromDC(HDC dc, IDirectDrawSurface4 **surface, HDC *device_dc)
 204 {
 205     struct ddraw *ddraw;
 206
 207     TRACE("dc %p, surface %p, device_dc %p.\n", dc, surface, device_dc);
 208
 209     if (!surface)
 210         return E_INVALIDARG;
 211
 212     if (!device_dc)
 213     {
 214         *surface = NULL;
 215
 216         return E_INVALIDARG;
 217     }
 218
 219     wined3d_mutex_lock();
 220     LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
 221     {
 222         if (FAILED(IDirectDraw4_GetSurfaceFromDC(&ddraw->IDirectDraw4_iface, dc, surface)))
 223             continue;
 224
 225         *device_dc = NULL; /* FIXME */
 226         wined3d_mutex_unlock();
 227         return DD_OK;
 228     }
 229     wined3d_mutex_unlock();
 230
 231     *surface = NULL;
 232     *device_dc = NULL;
 233
 234     return DDERR_NOTFOUND;
 235 }
 236
 237 /***********************************************************************
 238  *
 239  * Helper function for DirectDrawCreate and friends
 240  * Creates a new DDraw interface with the given REFIID
 241  *
 242  * Interfaces that can be created:
 243  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
 244  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
 245  *  IDirect3D interfaces?)
 246  *
 247  * Arguments:
 248  *  guid: ID of the requested driver, NULL for the default driver.
 249  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
 250  *  DD: Used to return the pointer to the created object
 251  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
 252  *  iid: requested version ID.
 253  *
 254  * Returns:
 255  *  DD_OK if the Interface was created successfully
 256  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
 257  *  E_OUTOFMEMORY if some allocation failed
 258  *
 259  ***********************************************************************/
 260 static HRESULT
 261 DDRAW_Create(const GUID *guid,
 262              void **DD,
 263              IUnknown *UnkOuter,
 264              REFIID iid)
 265 {
 266     enum wined3d_device_type device_type;
 267     struct ddraw *ddraw;
 268     HRESULT hr;
 269     DWORD flags = 0;
 270
 271     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
 272             debugstr_guid(guid), DD, UnkOuter, debugstr_guid(iid));
 273
 274     *DD = NULL;
 275
 276     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
 277     {
 278         /* Use the reference device id. This doesn't actually change anything,
 279          * WineD3D always uses OpenGL for D3D rendering. One could make it request
 280          * indirect rendering
 281          */
 282         device_type = WINED3D_DEVICE_TYPE_REF;
 283     }
 284     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
 285     {
 286         device_type = WINED3D_DEVICE_TYPE_HAL;
 287     }
 288     else
 289     {
 290         device_type = 0;
 291     }
 292
 293     /* DDraw doesn't support aggregation, according to msdn */
 294     if (UnkOuter != NULL)
 295         return CLASS_E_NOAGGREGATION;
 296
 297     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 298         flags = WINED3D_LEGACY_FFP_LIGHTING;
 299
 300     /* DirectDraw creation comes here */
 301     ddraw = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ddraw));
 302     if (!ddraw)
 303     {
 304         ERR("Out of memory when creating DirectDraw\n");
 305         return E_OUTOFMEMORY;
 306     }
 307
 308     hr = ddraw_init(ddraw, flags, device_type);
 309     if (FAILED(hr))
 310     {
 311         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 312         HeapFree(GetProcessHeap(), 0, ddraw);
 313         return hr;
 314     }
 315
 316     hr = IDirectDraw7_QueryInterface(&ddraw->IDirectDraw7_iface, iid, DD);
 317     IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
 318     if (SUCCEEDED(hr))
 319         list_add_head(&global_ddraw_list, &ddraw->ddraw_list_entry);
 320     else
 321         WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), ddraw);
 322
 323     return hr;
 324 }
 325
 326 /***********************************************************************
 327  * DirectDrawCreate (DDRAW.@)
 328  *
 329  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 330  * interfaces in theory
 331  *
 332  * Arguments, return values: See DDRAW_Create
 333  *
 334  ***********************************************************************/
 335 HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreate(GUID *driver_guid, IDirectDraw **ddraw, IUnknown *outer)
 336 {
 337     HRESULT hr;
 338
 339     TRACE("driver_guid %s, ddraw %p, outer %p.\n",
 340             debugstr_guid(driver_guid), ddraw, outer);
 341
 342     wined3d_mutex_lock();
 343     hr = DDRAW_Create(driver_guid, (void **)ddraw, outer, &IID_IDirectDraw);
 344     wined3d_mutex_unlock();
 345
 346     if (SUCCEEDED(hr))
 347     {
 348         if (FAILED(hr = IDirectDraw_Initialize(*ddraw, driver_guid)))
 349             IDirectDraw_Release(*ddraw);
 350     }
 351
 352     return hr;
 353 }
 354
 355 /***********************************************************************
 356  * DirectDrawCreateEx (DDRAW.@)
 357  *
 358  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 359  * interfaces are requested.
 360  *
 361  * Arguments, return values: See DDRAW_Create
 362  *
 363  ***********************************************************************/
 364 HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreateEx(GUID *driver_guid,
 365         void **ddraw, REFIID interface_iid, IUnknown *outer)
 366 {
 367     HRESULT hr;
 368
 369     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer %p.\n",
 370             debugstr_guid(driver_guid), ddraw, debugstr_guid(interface_iid), outer);
 371
 372     if (!IsEqualGUID(interface_iid, &IID_IDirectDraw7))
 373         return DDERR_INVALIDPARAMS;
 374
 375     wined3d_mutex_lock();
 376     hr = DDRAW_Create(driver_guid, ddraw, outer, interface_iid);
 377     wined3d_mutex_unlock();
 378
 379     if (SUCCEEDED(hr))
 380     {
 381         IDirectDraw7 *ddraw7 = *(IDirectDraw7 **)ddraw;
 382         hr = IDirectDraw7_Initialize(ddraw7, driver_guid);
 383         if (FAILED(hr))
 384             IDirectDraw7_Release(ddraw7);
 385     }
 386
 387     return hr;
 388 }
 389
 390 /***********************************************************************
 391  * DirectDrawEnumerateA (DDRAW.@)
 392  *
 393  * Enumerates legacy ddraw drivers, ascii version. We only have one
 394  * driver, which relays to WineD3D. If we were sufficiently cool,
 395  * we could offer various interfaces, which use a different default surface
 396  * implementation, but I think it's better to offer this choice in
 397  * winecfg, because some apps use the default driver, so we would need
 398  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 399  *
 400  * Arguments:
 401  *  Callback: Callback function from the app
 402  *  Context: Argument to the call back.
 403  *
 404  * Returns:
 405  *  DD_OK on success
 406  *  E_INVALIDARG if the Callback caused a page fault
 407  *
 408  *
 409  ***********************************************************************/
 410 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA callback, void *context)
 411 {
 412     struct callback_info info;
 413
 414     TRACE("callback %p, context %p.\n", callback, context);
 415
 416     info.callback = callback;
 417     info.context = context;
 418     return DirectDrawEnumerateExA(enum_callback, &info, 0x0);
 419 }
 420
 421 /***********************************************************************
 422  * DirectDrawEnumerateExA (DDRAW.@)
 423  *
 424  * Enumerates DirectDraw7 drivers, ascii version. See
 425  * the comments above DirectDrawEnumerateA for more details.
 426  *
 427  * The Flag member is not supported right now.
 428  *
 429  ***********************************************************************/
 430 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA callback, void *context, DWORD flags)
 431 {
 432     struct wined3d *wined3d;
 433
 434     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 435
 436     if (flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 437                   DDENUM_DETACHEDSECONDARYDEVICES |
 438                   DDENUM_NONDISPLAYDEVICES))
 439         return DDERR_INVALIDPARAMS;
 440
 441     if (flags & ~DDENUM_ATTACHEDSECONDARYDEVICES)
 442         FIXME("flags 0x%08x not handled\n", flags & ~DDENUM_ATTACHEDSECONDARYDEVICES);
 443
 444     TRACE("Enumerating ddraw interfaces\n");
 445     if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS)))
 446     {
 447         if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS | WINED3D_NO3D)))
 448         {
 449             WARN("Failed to create a wined3d object.\n");
 450             return E_FAIL;
 451         }
 452
 453         WARN("Created a wined3d object without 3D support.\n");
 454     }
 455
 456     __TRY
 457     {
 458         /* QuickTime expects the description "DirectDraw HAL" */
 459         static CHAR driver_desc[] = "DirectDraw HAL",
 460         driver_name[] = "display";
 461         BOOL cont_enum;
 462
 463         TRACE("Default interface: DirectDraw HAL\n");
 464         cont_enum = callback(NULL, driver_desc, driver_name, context, 0);
 465
 466         /* The Battle.net System Checker expects both a NULL device and a GUID-based device */
 467         if (cont_enum && (flags & DDENUM_ATTACHEDSECONDARYDEVICES))
 468             ddraw_enumerate_secondary_devices(wined3d, callback, context);
 469     }
 470     __EXCEPT_PAGE_FAULT
 471     {
 472         wined3d_decref(wined3d);
 473         return DDERR_INVALIDPARAMS;
 474     }
 475     __ENDTRY;
 476
 477     wined3d_decref(wined3d);
 478     TRACE("End of enumeration\n");
 479     return DD_OK;
 480 }
 481
 482 /***********************************************************************
 483  * DirectDrawEnumerateW (DDRAW.@)
 484  *
 485  * Enumerates legacy drivers, unicode version.
 486  * This function is not implemented on Windows.
 487  *
 488  ***********************************************************************/
 489 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 490 {
 491     TRACE("callback %p, context %p.\n", callback, context);
 492
 493     if (!callback)
 494         return DDERR_INVALIDPARAMS;
 495     else
 496         return DDERR_UNSUPPORTED;
 497 }
 498
 499 /***********************************************************************
 500  * DirectDrawEnumerateExW (DDRAW.@)
 501  *
 502  * Enumerates DirectDraw7 drivers, unicode version.
 503  * This function is not implemented on Windows.
 504  *
 505  ***********************************************************************/
 506 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 507 {
 508     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 509
 510     return DDERR_UNSUPPORTED;
 511 }
 512
 513 /***********************************************************************
 514  * Classfactory implementation.
 515  ***********************************************************************/
 516
 517 /***********************************************************************
 518  * CF_CreateDirectDraw
 519  *
 520  * DDraw creation function for the class factory
 521  *
 522  * Params:
 523  *  UnkOuter: Set to NULL
 524  *  iid: ID of the wanted interface
 525  *  obj: Address to pass the interface pointer back
 526  *
 527  * Returns
 528  *  DD_OK / DDERR*, see DDRAW_Create
 529  *
 530  ***********************************************************************/
 531 static HRESULT
 532 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 533                     void **obj)
 534 {
 535     HRESULT hr;
 536
 537     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 538
 539     wined3d_mutex_lock();
 540     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 541     wined3d_mutex_unlock();
 542
 543     return hr;
 544 }
 545
 546 /***********************************************************************
 547  * CF_CreateDirectDraw
 548  *
 549  * Clipper creation function for the class factory
 550  *
 551  * Params:
 552  *  UnkOuter: Set to NULL
 553  *  iid: ID of the wanted interface
 554  *  obj: Address to pass the interface pointer back
 555  *
 556  * Returns
 557  *  DD_OK / DDERR*, see DDRAW_Create
 558  *
 559  ***********************************************************************/
 560 static HRESULT
 561 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 562                               void **obj)
 563 {
 564     HRESULT hr;
 565     IDirectDrawClipper *Clip;
 566
 567     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 568
 569     wined3d_mutex_lock();
 570     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 571     if (hr != DD_OK)
 572     {
 573         wined3d_mutex_unlock();
 574         return hr;
 575     }
 576
 577     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 578     IDirectDrawClipper_Release(Clip);
 579
 580     wined3d_mutex_unlock();
 581
 582     return hr;
 583 }
 584
 585 static const struct object_creation_info object_creation[] =
 586 {
 587     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 588     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 589     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 590 };
 591
 592 struct ddraw_class_factory
 593 {
 594     IClassFactory IClassFactory_iface;
 595
 596     LONG ref;
 597     HRESULT (*pfnCreateInstance)(IUnknown *outer, REFIID iid, void **out);
 598 };
 599
 600 static inline struct ddraw_class_factory *impl_from_IClassFactory(IClassFactory *iface)
 601 {
 602     return CONTAINING_RECORD(iface, struct ddraw_class_factory, IClassFactory_iface);
 603 }
 604
 605 /*******************************************************************************
 606  * IDirectDrawClassFactory::QueryInterface
 607  *
 608  * QueryInterface for the class factory
 609  *
 610  * PARAMS
 611  *    riid   Reference to identifier of queried interface
 612  *    ppv    Address to return the interface pointer at
 613  *
 614  * RETURNS
 615  *    Success: S_OK
 616  *    Failure: E_NOINTERFACE
 617  *
 618  *******************************************************************************/
 619 static HRESULT WINAPI ddraw_class_factory_QueryInterface(IClassFactory *iface, REFIID riid, void **out)
 620 {
 621     TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);
 622
 623     if (IsEqualGUID(riid, &IID_IUnknown)
 624         || IsEqualGUID(riid, &IID_IClassFactory))
 625     {
 626         IClassFactory_AddRef(iface);
 627         *out = iface;
 628         return S_OK;
 629     }
 630
 631     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
 632
 633     return E_NOINTERFACE;
 634 }
 635
 636 /*******************************************************************************
 637  * IDirectDrawClassFactory::AddRef
 638  *
 639  * AddRef for the class factory
 640  *
 641  * RETURNS
 642  *  The new refcount
 643  *
 644  *******************************************************************************/
 645 static ULONG WINAPI ddraw_class_factory_AddRef(IClassFactory *iface)
 646 {
 647     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
 648     ULONG ref = InterlockedIncrement(&factory->ref);
 649
 650     TRACE("%p increasing refcount to %u.\n", factory, ref);
 651
 652     return ref;
 653 }
 654
 655 /*******************************************************************************
 656  * IDirectDrawClassFactory::Release
 657  *
 658  * Release for the class factory. If the refcount falls to 0, the object
 659  * is destroyed
 660  *
 661  * RETURNS
 662  *  The new refcount
 663  *
 664  *******************************************************************************/
 665 static ULONG WINAPI ddraw_class_factory_Release(IClassFactory *iface)
 666 {
 667     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
 668     ULONG ref = InterlockedDecrement(&factory->ref);
 669
 670     TRACE("%p decreasing refcount to %u.\n", factory, ref);
 671
 672     if (!ref)
 673         HeapFree(GetProcessHeap(), 0, factory);
 674
 675     return ref;
 676 }
 677
 678
 679 /*******************************************************************************
 680  * IDirectDrawClassFactory::CreateInstance
 681  *
 682  * What is this? Seems to create DirectDraw objects...
 683  *
 684  * Params
 685  *  The usual things???
 686  *
 687  * RETURNS
 688  *  ???
 689  *
 690  *******************************************************************************/
 691 static HRESULT WINAPI ddraw_class_factory_CreateInstance(IClassFactory *iface,
 692         IUnknown *outer_unknown, REFIID riid, void **out)
 693 {
 694     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
 695
 696     TRACE("iface %p, outer_unknown %p, riid %s, out %p.\n",
 697             iface, outer_unknown, debugstr_guid(riid), out);
 698
 699     return factory->pfnCreateInstance(outer_unknown, riid, out);
 700 }
 701
 702 /*******************************************************************************
 703  * IDirectDrawClassFactory::LockServer
 704  *
 705  * What is this?
 706  *
 707  * Params
 708  *  ???
 709  *
 710  * RETURNS
 711  *  S_OK, because it's a stub
 712  *
 713  *******************************************************************************/
 714 static HRESULT WINAPI ddraw_class_factory_LockServer(IClassFactory *iface, BOOL dolock)
 715 {
 716     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 717
 718     return S_OK;
 719 }
 720
 721 /*******************************************************************************
 722  * The class factory VTable
 723  *******************************************************************************/
 724 static const IClassFactoryVtbl IClassFactory_Vtbl =
 725 {
 726     ddraw_class_factory_QueryInterface,
 727     ddraw_class_factory_AddRef,
 728     ddraw_class_factory_Release,
 729     ddraw_class_factory_CreateInstance,
 730     ddraw_class_factory_LockServer
 731 };
 732
 733 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **out)
 734 {
 735     struct ddraw_class_factory *factory;
 736     unsigned int i;
 737
 738     TRACE("rclsid %s, riid %s, out %p.\n",
 739             debugstr_guid(rclsid), debugstr_guid(riid), out);
 740
 741     if (!IsEqualGUID(&IID_IClassFactory, riid)
 742             && !IsEqualGUID(&IID_IUnknown, riid))
 743         return E_NOINTERFACE;
 744
 745     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 746     {
 747         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 748             break;
 749     }
 750
 751     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 752     {
 753         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 754         return CLASS_E_CLASSNOTAVAILABLE;
 755     }
 756
 757     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
 758     if (factory == NULL) return E_OUTOFMEMORY;
 759
 760     factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
 761     factory->ref = 1;
 762
 763     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 764
 765     *out = factory;
 766     return S_OK;
 767 }
 768
 769
 770 /*******************************************************************************
 771  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 772  *
 773  * RETURNS
 774  *    Success: S_OK
 775  *    Failure: S_FALSE
 776  */
 777 HRESULT WINAPI DllCanUnloadNow(void)
 778 {
 779     TRACE("\n");
 780
 781     return S_FALSE;
 782 }
 783
 784
 785 HRESULT WINAPI DllRegisterServer(void)
 786 {
 787     return __wine_register_resources( instance );
 788 }
 789
 790 HRESULT WINAPI DllUnregisterServer(void)
 791 {
 792     return __wine_unregister_resources( instance );
 793 }
 794
 795 /***********************************************************************
 796  * DllMain (DDRAW.0)
 797  *
 798  * Could be used to register DirectDraw drivers, if we have more than
 799  * one. Also used to destroy any objects left at unload if the
 800  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
 801  *
 802  ***********************************************************************/
 803 BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, void *reserved)
 804 {
 805     switch (reason)
 806     {
 807     case DLL_PROCESS_ATTACH:
 808     {
 809         static HMODULE ddraw_self;
 810         HKEY hkey = 0;
 811         WNDCLASSA wc;
 812
 813         /* Register the window class. This is used to create a hidden window
 814          * for D3D rendering, if the application didn't pass one. It can also
 815          * be used for creating a device window from SetCooperativeLevel(). */
 816         wc.style = CS_HREDRAW | CS_VREDRAW;
 817         wc.lpfnWndProc = DefWindowProcA;
 818         wc.cbClsExtra = 0;
 819         wc.cbWndExtra = 0;
 820         wc.hInstance = inst;
 821         wc.hIcon = 0;
 822         wc.hCursor = 0;
 823         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
 824         wc.lpszMenuName = NULL;
 825         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
 826         if (!RegisterClassA(&wc))
 827         {
 828             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
 829             return FALSE;
 830         }
 831
 832         /* On Windows one can force the refresh rate that DirectDraw uses by
 833          * setting an override value in dxdiag.  This is documented in KB315614
 834          * (main article), KB230002, and KB217348.  By comparing registry dumps
 835          * before and after setting the override, we see that the override value
 836          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
 837          * DWORD that represents the refresh rate to force.  We use this
 838          * registry entry to modify the behavior of SetDisplayMode so that Wine
 839          * users can override the refresh rate in a Windows-compatible way.
 840          *
 841          * dxdiag will not accept a refresh rate lower than 40 or higher than
 842          * 120 so this value should be within that range.  It is, of course,
 843          * possible for a user to set the registry entry value directly so that
 844          * assumption might not hold.
 845          *
 846          * There is no current mechanism for setting this value through the Wine
 847          * GUI.  It would be most appropriate to set this value through a dxdiag
 848          * clone, but it may be sufficient to use winecfg.
 849          *
 850          * TODO: Create a mechanism for setting this value through the Wine GUI.
 851          */
 852         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
 853         {
 854             DWORD type, data, size;
 855
 856             size = sizeof(data);
 857             if (!RegQueryValueExA(hkey, "ForceRefreshRate", NULL, &type, (BYTE *)&data, &size) && type == REG_DWORD)
 858             {
 859                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
 860                 force_refresh_rate = data;
 861             }
 862             RegCloseKey( hkey );
 863         }
 864
 865         /* Prevent the ddraw module from being unloaded. When switching to
 866          * exclusive mode, we replace the window proc of the ddraw window. If
 867          * an application would unload ddraw from the WM_DESTROY handler for
 868          * that window, it would return to unmapped memory and die. Apparently
 869          * this is supposed to work on Windows. */
 870         if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN,
 871                 (const WCHAR *)&ddraw_self, &ddraw_self))
 872             ERR("Failed to get own module handle.\n");
 873
 874         instance = inst;
 875         DisableThreadLibraryCalls(inst);
 876         break;
 877     }
 878
 879     case DLL_PROCESS_DETACH:
 880         if (WARN_ON(ddraw))
 881         {
 882             struct ddraw *ddraw;
 883
 884             LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
 885             {
 886                 struct ddraw_surface *surface;
 887
 888                 WARN("DirectDraw object %p has reference counts {%u, %u, %u, %u, %u}.\n",
 889                         ddraw, ddraw->ref7, ddraw->ref4, ddraw->ref3, ddraw->ref2, ddraw->ref1);
 890
 891                 if (ddraw->d3ddevice)
 892                     WARN("DirectDraw object %p has Direct3D device %p attached.\n", ddraw, ddraw->d3ddevice);
 893
 894                 LIST_FOR_EACH_ENTRY(surface, &ddraw->surface_list, struct ddraw_surface, surface_list_entry)
 895                 {
 896                     WARN("Surface %p has reference counts {%u, %u, %u, %u, %u, %u}.\n",
 897                             surface, surface->ref7, surface->ref4, surface->ref3,
 898                             surface->ref2, surface->ref1, surface->gamma_count);
 899                 }
 900             }
 901         }
 902
 903         if (reserved) break;
 904         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, inst);
 905     }
 906
 907     return TRUE;
 908 }