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_adapter *wined3d_adapter;
  61     struct wined3d_output_desc output_desc;
  62     struct wined3d_output *wined3d_output;
  63     unsigned int interface_count = 0;
  64     unsigned int adapter_idx = 0;
  65     unsigned int output_idx;
  66     BOOL cont_enum = TRUE;
  67     HRESULT hr;
  68
  69     while (cont_enum && (wined3d_adapter = wined3d_get_adapter(wined3d, adapter_idx)))
  70     {
  71         char device_name[512] = "", description[512] = "";
  72
  73         /* The Battle.net System Checker expects the GetAdapterIdentifier DeviceName to match the
  74          * Driver Name, so obtain the DeviceName and GUID from D3D. */
  75         memset(&adapter_id, 0x0, sizeof(adapter_id));
  76         adapter_id.description = description;
  77         adapter_id.description_size = sizeof(description);
  78
  79         wined3d_mutex_lock();
  80         if (FAILED(hr = wined3d_adapter_get_identifier(wined3d_adapter, 0x0, &adapter_id)))
  81         {
  82             WARN("Failed to get adapter identifier, hr %#x.\n", hr);
  83             wined3d_mutex_unlock();
  84             break;
  85         }
  86         wined3d_mutex_unlock();
  87
  88         for (output_idx = 0; cont_enum && (wined3d_output = wined3d_adapter_get_output(
  89                 wined3d_adapter, output_idx)); ++output_idx)
  90         {
  91             wined3d_mutex_lock();
  92             if (FAILED(hr = wined3d_output_get_desc(wined3d_output, &output_desc)))
  93             {
  94                 WARN("Failed to get output description, hr %#x.\n", hr);
  95                 wined3d_mutex_unlock();
  96                 break;
  97             }
  98             wined3d_mutex_unlock();
  99
 100             TRACE("Interface %u: %s\n", interface_count++,
 101                     wine_dbgstr_guid(&adapter_id.device_identifier));
 102             WideCharToMultiByte(CP_ACP, 0, output_desc.device_name, -1, device_name,
 103                     sizeof(device_name), NULL, NULL);
 104             cont_enum = callback(&adapter_id.device_identifier, adapter_id.description,
 105                     device_name, context, output_desc.monitor);
 106         }
 107
 108         if (FAILED(hr))
 109             break;
 110
 111         ++adapter_idx;
 112     }
 113 }
 114
 115 /* Handle table functions */
 116 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
 117 {
 118     if (!(t->entries = heap_alloc_zero(initial_size * sizeof(*t->entries))))
 119     {
 120         ERR("Failed to allocate handle table memory.\n");
 121         return FALSE;
 122     }
 123     t->free_entries = NULL;
 124     t->table_size = initial_size;
 125     t->entry_count = 0;
 126
 127     return TRUE;
 128 }
 129
 130 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
 131 {
 132     heap_free(t->entries);
 133     memset(t, 0, sizeof(*t));
 134 }
 135
 136 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
 137 {
 138     struct ddraw_handle_entry *entry;
 139
 140     if (t->free_entries)
 141     {
 142         DWORD idx = t->free_entries - t->entries;
 143         /* Use a free handle */
 144         entry = t->free_entries;
 145         if (entry->type != DDRAW_HANDLE_FREE)
 146         {
 147             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
 148             return DDRAW_INVALID_HANDLE;
 149         }
 150         t->free_entries = entry->object;
 151         entry->object = object;
 152         entry->type = type;
 153
 154         return idx;
 155     }
 156
 157     if (!(t->entry_count < t->table_size))
 158     {
 159         /* Grow the table */
 160         UINT new_size = t->table_size + (t->table_size >> 1);
 161         struct ddraw_handle_entry *new_entries;
 162
 163         if (!(new_entries = heap_realloc(t->entries, new_size * sizeof(*t->entries))))
 164         {
 165             ERR("Failed to grow the handle table.\n");
 166             return DDRAW_INVALID_HANDLE;
 167         }
 168         t->entries = new_entries;
 169         t->table_size = new_size;
 170     }
 171
 172     entry = &t->entries[t->entry_count];
 173     entry->object = object;
 174     entry->type = type;
 175
 176     return t->entry_count++;
 177 }
 178
 179 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 180 {
 181     struct ddraw_handle_entry *entry;
 182     void *object;
 183
 184     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 185     {
 186         WARN("Invalid handle %#x passed.\n", handle);
 187         return NULL;
 188     }
 189
 190     entry = &t->entries[handle];
 191     if (entry->type != type)
 192     {
 193         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 194         return NULL;
 195     }
 196
 197     object = entry->object;
 198     entry->object = t->free_entries;
 199     entry->type = DDRAW_HANDLE_FREE;
 200     t->free_entries = entry;
 201
 202     return object;
 203 }
 204
 205 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 206 {
 207     struct ddraw_handle_entry *entry;
 208
 209     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 210     {
 211         WARN("Invalid handle %#x passed.\n", handle);
 212         return NULL;
 213     }
 214
 215     entry = &t->entries[handle];
 216     if (entry->type != type)
 217     {
 218         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 219         return NULL;
 220     }
 221
 222     return entry->object;
 223 }
 224
 225 HRESULT WINAPI GetSurfaceFromDC(HDC dc, IDirectDrawSurface4 **surface, HDC *device_dc)
 226 {
 227     struct ddraw *ddraw;
 228
 229     TRACE("dc %p, surface %p, device_dc %p.\n", dc, surface, device_dc);
 230
 231     if (!surface)
 232         return E_INVALIDARG;
 233
 234     if (!device_dc)
 235     {
 236         *surface = NULL;
 237
 238         return E_INVALIDARG;
 239     }
 240
 241     wined3d_mutex_lock();
 242     LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
 243     {
 244         if (FAILED(IDirectDraw4_GetSurfaceFromDC(&ddraw->IDirectDraw4_iface, dc, surface)))
 245             continue;
 246
 247         *device_dc = NULL; /* FIXME */
 248         wined3d_mutex_unlock();
 249         return DD_OK;
 250     }
 251     wined3d_mutex_unlock();
 252
 253     *surface = NULL;
 254     *device_dc = NULL;
 255
 256     return DDERR_NOTFOUND;
 257 }
 258
 259 /***********************************************************************
 260  *
 261  * Helper function for DirectDrawCreate and friends
 262  * Creates a new DDraw interface with the given REFIID
 263  *
 264  * Interfaces that can be created:
 265  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
 266  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
 267  *  IDirect3D interfaces?)
 268  *
 269  * Arguments:
 270  *  guid: ID of the requested driver, NULL for the default driver.
 271  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
 272  *  DD: Used to return the pointer to the created object
 273  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
 274  *  iid: requested version ID.
 275  *
 276  * Returns:
 277  *  DD_OK if the Interface was created successfully
 278  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
 279  *  E_OUTOFMEMORY if some allocation failed
 280  *
 281  ***********************************************************************/
 282 static HRESULT DDRAW_Create(const GUID *guid, void **out, IUnknown *outer_unknown, REFIID iid)
 283 {
 284     enum wined3d_device_type device_type;
 285     struct ddraw *ddraw;
 286     DWORD flags = 0;
 287     HRESULT hr;
 288
 289     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
 290             debugstr_guid(guid), out, outer_unknown, debugstr_guid(iid));
 291
 292     *out = NULL;
 293
 294     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
 295     {
 296         device_type = WINED3D_DEVICE_TYPE_REF;
 297     }
 298     else if (guid == (GUID *) DDCREATE_HARDWAREONLY)
 299     {
 300         device_type = WINED3D_DEVICE_TYPE_HAL;
 301     }
 302     else
 303     {
 304         device_type = WINED3D_DEVICE_TYPE_HAL;
 305     }
 306
 307     /* DDraw doesn't support aggregation, according to msdn */
 308     if (outer_unknown != NULL)
 309         return CLASS_E_NOAGGREGATION;
 310
 311     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 312         flags = WINED3D_LEGACY_FFP_LIGHTING;
 313
 314     if (!(ddraw = heap_alloc_zero(sizeof(*ddraw))))
 315     {
 316         ERR("Out of memory when creating DirectDraw.\n");
 317         return E_OUTOFMEMORY;
 318     }
 319
 320     if (FAILED(hr = ddraw_init(ddraw, flags, device_type)))
 321     {
 322         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 323         heap_free(ddraw);
 324         return hr;
 325     }
 326
 327     hr = IDirectDraw7_QueryInterface(&ddraw->IDirectDraw7_iface, iid, out);
 328     IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
 329     if (SUCCEEDED(hr))
 330         list_add_head(&global_ddraw_list, &ddraw->ddraw_list_entry);
 331     else
 332         WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), ddraw);
 333
 334     return hr;
 335 }
 336
 337 /***********************************************************************
 338  * DirectDrawCreate (DDRAW.@)
 339  *
 340  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 341  * interfaces in theory
 342  *
 343  * Arguments, return values: See DDRAW_Create
 344  *
 345  ***********************************************************************/
 346 HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreate(GUID *driver_guid, IDirectDraw **ddraw, IUnknown *outer)
 347 {
 348     HRESULT hr;
 349
 350     TRACE("driver_guid %s, ddraw %p, outer %p.\n",
 351             debugstr_guid(driver_guid), ddraw, outer);
 352
 353     wined3d_mutex_lock();
 354     hr = DDRAW_Create(driver_guid, (void **)ddraw, outer, &IID_IDirectDraw);
 355     wined3d_mutex_unlock();
 356
 357     if (SUCCEEDED(hr))
 358     {
 359         if (FAILED(hr = IDirectDraw_Initialize(*ddraw, driver_guid)))
 360             IDirectDraw_Release(*ddraw);
 361     }
 362
 363     return hr;
 364 }
 365
 366 /***********************************************************************
 367  * DirectDrawCreateEx (DDRAW.@)
 368  *
 369  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 370  * interfaces are requested.
 371  *
 372  * Arguments, return values: See DDRAW_Create
 373  *
 374  ***********************************************************************/
 375 HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreateEx(GUID *driver_guid,
 376         void **ddraw, REFIID interface_iid, IUnknown *outer)
 377 {
 378     HRESULT hr;
 379
 380     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer %p.\n",
 381             debugstr_guid(driver_guid), ddraw, debugstr_guid(interface_iid), outer);
 382
 383     if (!IsEqualGUID(interface_iid, &IID_IDirectDraw7))
 384         return DDERR_INVALIDPARAMS;
 385
 386     wined3d_mutex_lock();
 387     hr = DDRAW_Create(driver_guid, ddraw, outer, interface_iid);
 388     wined3d_mutex_unlock();
 389
 390     if (SUCCEEDED(hr))
 391     {
 392         IDirectDraw7 *ddraw7 = *(IDirectDraw7 **)ddraw;
 393         hr = IDirectDraw7_Initialize(ddraw7, driver_guid);
 394         if (FAILED(hr))
 395             IDirectDraw7_Release(ddraw7);
 396     }
 397
 398     return hr;
 399 }
 400
 401 /***********************************************************************
 402  * DirectDrawEnumerateA (DDRAW.@)
 403  *
 404  * Enumerates legacy ddraw drivers, ascii version. We only have one
 405  * driver, which relays to WineD3D. If we were sufficiently cool,
 406  * we could offer various interfaces, which use a different default surface
 407  * implementation, but I think it's better to offer this choice in
 408  * winecfg, because some apps use the default driver, so we would need
 409  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 410  *
 411  * Arguments:
 412  *  Callback: Callback function from the app
 413  *  Context: Argument to the call back.
 414  *
 415  * Returns:
 416  *  DD_OK on success
 417  *  E_INVALIDARG if the Callback caused a page fault
 418  *
 419  *
 420  ***********************************************************************/
 421 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA callback, void *context)
 422 {
 423     struct callback_info info;
 424
 425     TRACE("callback %p, context %p.\n", callback, context);
 426
 427     info.callback = callback;
 428     info.context = context;
 429     return DirectDrawEnumerateExA(enum_callback, &info, 0x0);
 430 }
 431
 432 /***********************************************************************
 433  * DirectDrawEnumerateExA (DDRAW.@)
 434  *
 435  * Enumerates DirectDraw7 drivers, ascii version. See
 436  * the comments above DirectDrawEnumerateA for more details.
 437  *
 438  * The Flag member is not supported right now.
 439  *
 440  ***********************************************************************/
 441 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA callback, void *context, DWORD flags)
 442 {
 443     struct wined3d *wined3d;
 444
 445     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 446
 447     if (flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 448                   DDENUM_DETACHEDSECONDARYDEVICES |
 449                   DDENUM_NONDISPLAYDEVICES))
 450         return DDERR_INVALIDPARAMS;
 451
 452     if (flags & ~DDENUM_ATTACHEDSECONDARYDEVICES)
 453         FIXME("flags 0x%08x not handled\n", flags & ~DDENUM_ATTACHEDSECONDARYDEVICES);
 454
 455     TRACE("Enumerating ddraw interfaces\n");
 456     if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS)))
 457     {
 458         if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS | WINED3D_NO3D)))
 459         {
 460             WARN("Failed to create a wined3d object.\n");
 461             return E_FAIL;
 462         }
 463
 464         WARN("Created a wined3d object without 3D support.\n");
 465     }
 466
 467     __TRY
 468     {
 469         /* QuickTime expects the description "DirectDraw HAL" */
 470         static CHAR driver_desc[] = "DirectDraw HAL",
 471         driver_name[] = "display";
 472         BOOL cont_enum;
 473
 474         TRACE("Default interface: DirectDraw HAL\n");
 475         cont_enum = callback(NULL, driver_desc, driver_name, context, 0);
 476
 477         /* The Battle.net System Checker expects both a NULL device and a GUID-based device */
 478         if (cont_enum && (flags & DDENUM_ATTACHEDSECONDARYDEVICES))
 479             ddraw_enumerate_secondary_devices(wined3d, callback, context);
 480     }
 481     __EXCEPT_PAGE_FAULT
 482     {
 483         wined3d_decref(wined3d);
 484         return DDERR_INVALIDPARAMS;
 485     }
 486     __ENDTRY;
 487
 488     wined3d_decref(wined3d);
 489     TRACE("End of enumeration\n");
 490     return DD_OK;
 491 }
 492
 493 /***********************************************************************
 494  * DirectDrawEnumerateW (DDRAW.@)
 495  *
 496  * Enumerates legacy drivers, unicode version.
 497  * This function is not implemented on Windows.
 498  *
 499  ***********************************************************************/
 500 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 501 {
 502     TRACE("callback %p, context %p.\n", callback, context);
 503
 504     if (!callback)
 505         return DDERR_INVALIDPARAMS;
 506     else
 507         return DDERR_UNSUPPORTED;
 508 }
 509
 510 /***********************************************************************
 511  * DirectDrawEnumerateExW (DDRAW.@)
 512  *
 513  * Enumerates DirectDraw7 drivers, unicode version.
 514  * This function is not implemented on Windows.
 515  *
 516  ***********************************************************************/
 517 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 518 {
 519     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 520
 521     return DDERR_UNSUPPORTED;
 522 }
 523
 524 /***********************************************************************
 525  * Classfactory implementation.
 526  ***********************************************************************/
 527
 528 /***********************************************************************
 529  * CF_CreateDirectDraw
 530  *
 531  * DDraw creation function for the class factory
 532  *
 533  * Params:
 534  *  UnkOuter: Set to NULL
 535  *  iid: ID of the wanted interface
 536  *  obj: Address to pass the interface pointer back
 537  *
 538  * Returns
 539  *  DD_OK / DDERR*, see DDRAW_Create
 540  *
 541  ***********************************************************************/
 542 static HRESULT
 543 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 544                     void **obj)
 545 {
 546     HRESULT hr;
 547
 548     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 549
 550     wined3d_mutex_lock();
 551     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 552     wined3d_mutex_unlock();
 553
 554     return hr;
 555 }
 556
 557 /***********************************************************************
 558  * CF_CreateDirectDraw
 559  *
 560  * Clipper creation function for the class factory
 561  *
 562  * Params:
 563  *  UnkOuter: Set to NULL
 564  *  iid: ID of the wanted interface
 565  *  obj: Address to pass the interface pointer back
 566  *
 567  * Returns
 568  *  DD_OK / DDERR*, see DDRAW_Create
 569  *
 570  ***********************************************************************/
 571 static HRESULT
 572 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 573                               void **obj)
 574 {
 575     HRESULT hr;
 576     IDirectDrawClipper *Clip;
 577
 578     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 579
 580     wined3d_mutex_lock();
 581     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 582     if (hr != DD_OK)
 583     {
 584         wined3d_mutex_unlock();
 585         return hr;
 586     }
 587
 588     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 589     IDirectDrawClipper_Release(Clip);
 590
 591     wined3d_mutex_unlock();
 592
 593     return hr;
 594 }
 595
 596 static const struct object_creation_info object_creation[] =
 597 {
 598     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 599     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 600     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 601 };
 602
 603 struct ddraw_class_factory
 604 {
 605     IClassFactory IClassFactory_iface;
 606
 607     LONG ref;
 608     HRESULT (*pfnCreateInstance)(IUnknown *outer, REFIID iid, void **out);
 609 };
 610
 611 static inline struct ddraw_class_factory *impl_from_IClassFactory(IClassFactory *iface)
 612 {
 613     return CONTAINING_RECORD(iface, struct ddraw_class_factory, IClassFactory_iface);
 614 }
 615
 616 /*******************************************************************************
 617  * IDirectDrawClassFactory::QueryInterface
 618  *
 619  * QueryInterface for the class factory
 620  *
 621  * PARAMS
 622  *    riid   Reference to identifier of queried interface
 623  *    ppv    Address to return the interface pointer at
 624  *
 625  * RETURNS
 626  *    Success: S_OK
 627  *    Failure: E_NOINTERFACE
 628  *
 629  *******************************************************************************/
 630 static HRESULT WINAPI ddraw_class_factory_QueryInterface(IClassFactory *iface, REFIID riid, void **out)
 631 {
 632     TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);
 633
 634     if (IsEqualGUID(riid, &IID_IUnknown)
 635         || IsEqualGUID(riid, &IID_IClassFactory))
 636     {
 637         IClassFactory_AddRef(iface);
 638         *out = iface;
 639         return S_OK;
 640     }
 641
 642     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
 643
 644     return E_NOINTERFACE;
 645 }
 646
 647 /*******************************************************************************
 648  * IDirectDrawClassFactory::AddRef
 649  *
 650  * AddRef for the class factory
 651  *
 652  * RETURNS
 653  *  The new refcount
 654  *
 655  *******************************************************************************/
 656 static ULONG WINAPI ddraw_class_factory_AddRef(IClassFactory *iface)
 657 {
 658     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
 659     ULONG ref = InterlockedIncrement(&factory->ref);
 660
 661     TRACE("%p increasing refcount to %u.\n", factory, ref);
 662
 663     return ref;
 664 }
 665
 666 /*******************************************************************************
 667  * IDirectDrawClassFactory::Release
 668  *
 669  * Release for the class factory. If the refcount falls to 0, the object
 670  * is destroyed
 671  *
 672  * RETURNS
 673  *  The new refcount
 674  *
 675  *******************************************************************************/
 676 static ULONG WINAPI ddraw_class_factory_Release(IClassFactory *iface)
 677 {
 678     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
 679     ULONG ref = InterlockedDecrement(&factory->ref);
 680
 681     TRACE("%p decreasing refcount to %u.\n", factory, ref);
 682
 683     if (!ref)
 684         heap_free(factory);
 685
 686     return ref;
 687 }
 688
 689
 690 /*******************************************************************************
 691  * IDirectDrawClassFactory::CreateInstance
 692  *
 693  * What is this? Seems to create DirectDraw objects...
 694  *
 695  * Params
 696  *  The usual things???
 697  *
 698  * RETURNS
 699  *  ???
 700  *
 701  *******************************************************************************/
 702 static HRESULT WINAPI ddraw_class_factory_CreateInstance(IClassFactory *iface,
 703         IUnknown *outer_unknown, REFIID riid, void **out)
 704 {
 705     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
 706
 707     TRACE("iface %p, outer_unknown %p, riid %s, out %p.\n",
 708             iface, outer_unknown, debugstr_guid(riid), out);
 709
 710     return factory->pfnCreateInstance(outer_unknown, riid, out);
 711 }
 712
 713 /*******************************************************************************
 714  * IDirectDrawClassFactory::LockServer
 715  *
 716  * What is this?
 717  *
 718  * Params
 719  *  ???
 720  *
 721  * RETURNS
 722  *  S_OK, because it's a stub
 723  *
 724  *******************************************************************************/
 725 static HRESULT WINAPI ddraw_class_factory_LockServer(IClassFactory *iface, BOOL dolock)
 726 {
 727     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 728
 729     return S_OK;
 730 }
 731
 732 /*******************************************************************************
 733  * The class factory VTable
 734  *******************************************************************************/
 735 static const IClassFactoryVtbl IClassFactory_Vtbl =
 736 {
 737     ddraw_class_factory_QueryInterface,
 738     ddraw_class_factory_AddRef,
 739     ddraw_class_factory_Release,
 740     ddraw_class_factory_CreateInstance,
 741     ddraw_class_factory_LockServer
 742 };
 743
 744 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **out)
 745 {
 746     struct ddraw_class_factory *factory;
 747     unsigned int i;
 748
 749     TRACE("rclsid %s, riid %s, out %p.\n",
 750             debugstr_guid(rclsid), debugstr_guid(riid), out);
 751
 752     if (!IsEqualGUID(&IID_IClassFactory, riid)
 753             && !IsEqualGUID(&IID_IUnknown, riid))
 754         return E_NOINTERFACE;
 755
 756     for (i=0; i < ARRAY_SIZE(object_creation); i++)
 757     {
 758         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 759             break;
 760     }
 761
 762     if (i == ARRAY_SIZE(object_creation))
 763     {
 764         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 765         return CLASS_E_CLASSNOTAVAILABLE;
 766     }
 767
 768     if (!(factory = heap_alloc_zero(sizeof(*factory))))
 769         return E_OUTOFMEMORY;
 770
 771     factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
 772     factory->ref = 1;
 773
 774     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 775
 776     *out = factory;
 777     return S_OK;
 778 }
 779
 780
 781 /*******************************************************************************
 782  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 783  *
 784  * RETURNS
 785  *    Success: S_OK
 786  *    Failure: S_FALSE
 787  */
 788 HRESULT WINAPI DllCanUnloadNow(void)
 789 {
 790     TRACE("\n");
 791
 792     return S_FALSE;
 793 }
 794
 795
 796 HRESULT WINAPI DllRegisterServer(void)
 797 {
 798     return __wine_register_resources( instance );
 799 }
 800
 801 HRESULT WINAPI DllUnregisterServer(void)
 802 {
 803     return __wine_unregister_resources( instance );
 804 }
 805
 806 /***********************************************************************
 807  * DllMain (DDRAW.0)
 808  *
 809  * Could be used to register DirectDraw drivers, if we have more than
 810  * one. Also used to destroy any objects left at unload if the
 811  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
 812  *
 813  ***********************************************************************/
 814 BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, void *reserved)
 815 {
 816     switch (reason)
 817     {
 818     case DLL_PROCESS_ATTACH:
 819     {
 820         static HMODULE ddraw_self;
 821         HKEY hkey = 0;
 822         WNDCLASSA wc;
 823
 824         /* Register the window class. This is used to create a hidden window
 825          * for D3D rendering, if the application didn't pass one. It can also
 826          * be used for creating a device window from SetCooperativeLevel(). */
 827         wc.style = CS_HREDRAW | CS_VREDRAW;
 828         wc.lpfnWndProc = DefWindowProcA;
 829         wc.cbClsExtra = 0;
 830         wc.cbWndExtra = 0;
 831         wc.hInstance = inst;
 832         wc.hIcon = 0;
 833         wc.hCursor = 0;
 834         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
 835         wc.lpszMenuName = NULL;
 836         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
 837         if (!RegisterClassA(&wc))
 838         {
 839             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
 840             return FALSE;
 841         }
 842
 843         /* On Windows one can force the refresh rate that DirectDraw uses by
 844          * setting an override value in dxdiag.  This is documented in KB315614
 845          * (main article), KB230002, and KB217348.  By comparing registry dumps
 846          * before and after setting the override, we see that the override value
 847          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
 848          * DWORD that represents the refresh rate to force.  We use this
 849          * registry entry to modify the behavior of SetDisplayMode so that Wine
 850          * users can override the refresh rate in a Windows-compatible way.
 851          *
 852          * dxdiag will not accept a refresh rate lower than 40 or higher than
 853          * 120 so this value should be within that range.  It is, of course,
 854          * possible for a user to set the registry entry value directly so that
 855          * assumption might not hold.
 856          *
 857          * There is no current mechanism for setting this value through the Wine
 858          * GUI.  It would be most appropriate to set this value through a dxdiag
 859          * clone, but it may be sufficient to use winecfg.
 860          *
 861          * TODO: Create a mechanism for setting this value through the Wine GUI.
 862          */
 863         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
 864         {
 865             DWORD type, data, size;
 866
 867             size = sizeof(data);
 868             if (!RegQueryValueExA(hkey, "ForceRefreshRate", NULL, &type, (BYTE *)&data, &size) && type == REG_DWORD)
 869             {
 870                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
 871                 force_refresh_rate = data;
 872             }
 873             RegCloseKey( hkey );
 874         }
 875
 876         /* Prevent the ddraw module from being unloaded. When switching to
 877          * exclusive mode, we replace the window proc of the ddraw window. If
 878          * an application would unload ddraw from the WM_DESTROY handler for
 879          * that window, it would return to unmapped memory and die. Apparently
 880          * this is supposed to work on Windows. */
 881         if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN,
 882                 (const WCHAR *)&ddraw_self, &ddraw_self))
 883             ERR("Failed to get own module handle.\n");
 884
 885         instance = inst;
 886         DisableThreadLibraryCalls(inst);
 887         break;
 888     }
 889
 890     case DLL_PROCESS_DETACH:
 891         if (WARN_ON(ddraw))
 892         {
 893             struct ddraw *ddraw;
 894
 895             LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
 896             {
 897                 struct ddraw_surface *surface;
 898
 899                 WARN("DirectDraw object %p has reference counts {%u, %u, %u, %u, %u}.\n",
 900                         ddraw, ddraw->ref7, ddraw->ref4, ddraw->ref3, ddraw->ref2, ddraw->ref1);
 901
 902                 if (ddraw->d3ddevice)
 903                     WARN("DirectDraw object %p has Direct3D device %p attached.\n", ddraw, ddraw->d3ddevice);
 904
 905                 LIST_FOR_EACH_ENTRY(surface, &ddraw->surface_list, struct ddraw_surface, surface_list_entry)
 906                 {
 907                     WARN("Surface %p has reference counts {%u, %u, %u, %u, %u, %u}.\n",
 908                             surface, surface->ref7, surface->ref4, surface->ref3,
 909                             surface->ref2, surface->ref1, surface->gamma_count);
 910                 }
 911             }
 912         }
 913
 914         if (reserved) break;
 915         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, inst);
 916     }
 917
 918     return TRUE;
 919 }