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