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   1 /*        DirectDraw Base Functions
   2  *
   3  * Copyright 1997-1999 Marcus Meissner
   4  * Copyright 1998 Lionel Ulmer
   5  * Copyright 2000-2001 TransGaming Technologies Inc.
   6  * Copyright 2006 Stefan Dösinger
   7  * Copyright 2008 Denver Gingerich
   8  *
   9  * This file contains the (internal) driver registration functions,
  10  * driver enumeration APIs and DirectDraw creation functions.
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  25  */
  26
  27 #include "config.h"
  28 #include "wine/port.h"
  29
  30 #define DDRAW_INIT_GUID
  31 #include "ddraw_private.h"
  32 #include "rpcproxy.h"
  33
  34 #include "wine/exception.h"
  35 #include "winreg.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  38
  39 /* The configured default surface */
  40 WINED3DSURFTYPE DefaultSurfaceType = SURFACE_UNKNOWN;
  41
  42 /* DDraw list and critical section */
  43 static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
  44
  45 static CRITICAL_SECTION_DEBUG ddraw_cs_debug =
  46 {
  47     0, 0, &ddraw_cs,
  48     { &ddraw_cs_debug.ProcessLocksList,
  49     &ddraw_cs_debug.ProcessLocksList },
  50     0, 0, { (DWORD_PTR)(__FILE__ ": ddraw_cs") }
  51 };
  52 CRITICAL_SECTION ddraw_cs = { &ddraw_cs_debug, -1, 0, 0, 0, 0 };
  53
  54 static HINSTANCE instance;
  55
  56 /* value of ForceRefreshRate */
  57 DWORD force_refresh_rate = 0;
  58
  59 /* Handle table functions */
  60 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
  61 {
  62     t->entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, initial_size * sizeof(*t->entries));
  63     if (!t->entries)
  64     {
  65         ERR("Failed to allocate handle table memory.\n");
  66         return FALSE;
  67     }
  68     t->free_entries = NULL;
  69     t->table_size = initial_size;
  70     t->entry_count = 0;
  71
  72     return TRUE;
  73 }
  74
  75 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
  76 {
  77     HeapFree(GetProcessHeap(), 0, t->entries);
  78     memset(t, 0, sizeof(*t));
  79 }
  80
  81 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
  82 {
  83     struct ddraw_handle_entry *entry;
  84
  85     if (t->free_entries)
  86     {
  87         DWORD idx = t->free_entries - t->entries;
  88         /* Use a free handle */
  89         entry = t->free_entries;
  90         if (entry->type != DDRAW_HANDLE_FREE)
  91         {
  92             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
  93             return DDRAW_INVALID_HANDLE;
  94         }
  95         t->free_entries = entry->object;
  96         entry->object = object;
  97         entry->type = type;
  98
  99         return idx;
 100     }
 101
 102     if (!(t->entry_count < t->table_size))
 103     {
 104         /* Grow the table */
 105         UINT new_size = t->table_size + (t->table_size >> 1);
 106         struct ddraw_handle_entry *new_entries = HeapReAlloc(GetProcessHeap(),
 107                 0, t->entries, new_size * sizeof(*t->entries));
 108         if (!new_entries)
 109         {
 110             ERR("Failed to grow the handle table.\n");
 111             return DDRAW_INVALID_HANDLE;
 112         }
 113         t->entries = new_entries;
 114         t->table_size = new_size;
 115     }
 116
 117     entry = &t->entries[t->entry_count];
 118     entry->object = object;
 119     entry->type = type;
 120
 121     return t->entry_count++;
 122 }
 123
 124 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 125 {
 126     struct ddraw_handle_entry *entry;
 127     void *object;
 128
 129     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 130     {
 131         WARN("Invalid handle %#x passed.\n", handle);
 132         return NULL;
 133     }
 134
 135     entry = &t->entries[handle];
 136     if (entry->type != type)
 137     {
 138         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 139         return NULL;
 140     }
 141
 142     object = entry->object;
 143     entry->object = t->free_entries;
 144     entry->type = DDRAW_HANDLE_FREE;
 145     t->free_entries = entry;
 146
 147     return object;
 148 }
 149
 150 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
 151 {
 152     struct ddraw_handle_entry *entry;
 153
 154     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
 155     {
 156         WARN("Invalid handle %#x passed.\n", handle);
 157         return NULL;
 158     }
 159
 160     entry = &t->entries[handle];
 161     if (entry->type != type)
 162     {
 163         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
 164         return NULL;
 165     }
 166
 167     return entry->object;
 168 }
 169
 170 /***********************************************************************
 171  *
 172  * Helper function for DirectDrawCreate and friends
 173  * Creates a new DDraw interface with the given REFIID
 174  *
 175  * Interfaces that can be created:
 176  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
 177  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
 178  *  IDirect3D interfaces?)
 179  *
 180  * Arguments:
 181  *  guid: ID of the requested driver, NULL for the default driver.
 182  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
 183  *  DD: Used to return the pointer to the created object
 184  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
 185  *  iid: requested version ID.
 186  *
 187  * Returns:
 188  *  DD_OK if the Interface was created successfully
 189  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
 190  *  E_OUTOFMEMORY if some allocation failed
 191  *
 192  ***********************************************************************/
 193 static HRESULT
 194 DDRAW_Create(const GUID *guid,
 195              void **DD,
 196              IUnknown *UnkOuter,
 197              REFIID iid)
 198 {
 199     WINED3DDEVTYPE devicetype;
 200     IDirectDrawImpl *This;
 201     HRESULT hr;
 202
 203     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
 204             debugstr_guid(guid), DD, UnkOuter, debugstr_guid(iid));
 205
 206     *DD = NULL;
 207
 208     /* We don't care about this guids. Well, there's no special guid anyway
 209      * OK, we could
 210      */
 211     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
 212     {
 213         /* Use the reference device id. This doesn't actually change anything,
 214          * WineD3D always uses OpenGL for D3D rendering. One could make it request
 215          * indirect rendering
 216          */
 217         devicetype = WINED3DDEVTYPE_REF;
 218     }
 219     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
 220     {
 221         devicetype = WINED3DDEVTYPE_HAL;
 222     }
 223     else
 224     {
 225         devicetype = 0;
 226     }
 227
 228     /* DDraw doesn't support aggregation, according to msdn */
 229     if (UnkOuter != NULL)
 230         return CLASS_E_NOAGGREGATION;
 231
 232     /* DirectDraw creation comes here */
 233     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectDrawImpl));
 234     if(!This)
 235     {
 236         ERR("Out of memory when creating DirectDraw\n");
 237         return E_OUTOFMEMORY;
 238     }
 239
 240     hr = ddraw_init(This, devicetype);
 241     if (FAILED(hr))
 242     {
 243         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
 244         HeapFree(GetProcessHeap(), 0, This);
 245         return hr;
 246     }
 247
 248     hr = IDirectDraw7_QueryInterface(&This->IDirectDraw7_iface, iid, DD);
 249     IDirectDraw7_Release(&This->IDirectDraw7_iface);
 250     if (SUCCEEDED(hr)) list_add_head(&global_ddraw_list, &This->ddraw_list_entry);
 251     else WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), This);
 252
 253     return hr;
 254 }
 255
 256 /***********************************************************************
 257  * DirectDrawCreate (DDRAW.@)
 258  *
 259  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
 260  * interfaces in theory
 261  *
 262  * Arguments, return values: See DDRAW_Create
 263  *
 264  ***********************************************************************/
 265 HRESULT WINAPI DECLSPEC_HOTPATCH
 266 DirectDrawCreate(GUID *GUID,
 267                  LPDIRECTDRAW *DD,
 268                  IUnknown *UnkOuter)
 269 {
 270     HRESULT hr;
 271
 272     TRACE("driver_guid %s, ddraw %p, outer_unknown %p.\n",
 273             debugstr_guid(GUID), DD, UnkOuter);
 274
 275     EnterCriticalSection(&ddraw_cs);
 276     hr = DDRAW_Create(GUID, (void **) DD, UnkOuter, &IID_IDirectDraw);
 277     LeaveCriticalSection(&ddraw_cs);
 278     return hr;
 279 }
 280
 281 /***********************************************************************
 282  * DirectDrawCreateEx (DDRAW.@)
 283  *
 284  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
 285  * interfaces are requested.
 286  *
 287  * Arguments, return values: See DDRAW_Create
 288  *
 289  ***********************************************************************/
 290 HRESULT WINAPI DECLSPEC_HOTPATCH
 291 DirectDrawCreateEx(GUID *GUID,
 292                    LPVOID *DD,
 293                    REFIID iid,
 294                    IUnknown *UnkOuter)
 295 {
 296     HRESULT hr;
 297
 298     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer_unknown %p.\n",
 299             debugstr_guid(GUID), DD, debugstr_guid(iid), UnkOuter);
 300
 301     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
 302         return DDERR_INVALIDPARAMS;
 303
 304     EnterCriticalSection(&ddraw_cs);
 305     hr = DDRAW_Create(GUID, DD, UnkOuter, iid);
 306     LeaveCriticalSection(&ddraw_cs);
 307     return hr;
 308 }
 309
 310 /***********************************************************************
 311  * DirectDrawEnumerateA (DDRAW.@)
 312  *
 313  * Enumerates legacy ddraw drivers, ascii version. We only have one
 314  * driver, which relays to WineD3D. If we were sufficiently cool,
 315  * we could offer various interfaces, which use a different default surface
 316  * implementation, but I think it's better to offer this choice in
 317  * winecfg, because some apps use the default driver, so we would need
 318  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
 319  *
 320  * Arguments:
 321  *  Callback: Callback function from the app
 322  *  Context: Argument to the call back.
 323  *
 324  * Returns:
 325  *  DD_OK on success
 326  *  E_INVALIDARG if the Callback caused a page fault
 327  *
 328  *
 329  ***********************************************************************/
 330 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA Callback, void *Context)
 331 {
 332     TRACE("callback %p, context %p.\n", Callback, Context);
 333
 334     TRACE(" Enumerating default DirectDraw HAL interface\n");
 335     /* We only have one driver */
 336     __TRY
 337     {
 338         static CHAR driver_desc[] = "DirectDraw HAL",
 339         driver_name[] = "display";
 340
 341         Callback(NULL, driver_desc, driver_name, Context);
 342     }
 343     __EXCEPT_PAGE_FAULT
 344     {
 345         return DDERR_INVALIDPARAMS;
 346     }
 347     __ENDTRY
 348
 349     TRACE(" End of enumeration\n");
 350     return DD_OK;
 351 }
 352
 353 /***********************************************************************
 354  * DirectDrawEnumerateExA (DDRAW.@)
 355  *
 356  * Enumerates DirectDraw7 drivers, ascii version. See
 357  * the comments above DirectDrawEnumerateA for more details.
 358  *
 359  * The Flag member is not supported right now.
 360  *
 361  ***********************************************************************/
 362 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA Callback, void *Context, DWORD Flags)
 363 {
 364     TRACE("callback %p, context %p, flags %#x.\n", Callback, Context, Flags);
 365
 366     if (Flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
 367                   DDENUM_DETACHEDSECONDARYDEVICES |
 368                   DDENUM_NONDISPLAYDEVICES))
 369         return DDERR_INVALIDPARAMS;
 370
 371     if (Flags)
 372         FIXME("flags 0x%08x not handled\n", Flags);
 373
 374     TRACE("Enumerating default DirectDraw HAL interface\n");
 375
 376     /* We only have one driver by now */
 377     __TRY
 378     {
 379         static CHAR driver_desc[] = "DirectDraw HAL",
 380         driver_name[] = "display";
 381
 382         /* QuickTime expects the description "DirectDraw HAL" */
 383         Callback(NULL, driver_desc, driver_name, Context, 0);
 384     }
 385     __EXCEPT_PAGE_FAULT
 386     {
 387         return DDERR_INVALIDPARAMS;
 388     }
 389     __ENDTRY;
 390
 391     TRACE("End of enumeration\n");
 392     return DD_OK;
 393 }
 394
 395 /***********************************************************************
 396  * DirectDrawEnumerateW (DDRAW.@)
 397  *
 398  * Enumerates legacy drivers, unicode version.
 399  * This function is not implemented on Windows.
 400  *
 401  ***********************************************************************/
 402 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
 403 {
 404     TRACE("callback %p, context %p.\n", callback, context);
 405
 406     if (!callback)
 407         return DDERR_INVALIDPARAMS;
 408     else
 409         return DDERR_UNSUPPORTED;
 410 }
 411
 412 /***********************************************************************
 413  * DirectDrawEnumerateExW (DDRAW.@)
 414  *
 415  * Enumerates DirectDraw7 drivers, unicode version.
 416  * This function is not implemented on Windows.
 417  *
 418  ***********************************************************************/
 419 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
 420 {
 421     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
 422
 423     return DDERR_UNSUPPORTED;
 424 }
 425
 426 /***********************************************************************
 427  * Classfactory implementation.
 428  ***********************************************************************/
 429
 430 /***********************************************************************
 431  * CF_CreateDirectDraw
 432  *
 433  * DDraw creation function for the class factory
 434  *
 435  * Params:
 436  *  UnkOuter: Set to NULL
 437  *  iid: ID of the wanted interface
 438  *  obj: Address to pass the interface pointer back
 439  *
 440  * Returns
 441  *  DD_OK / DDERR*, see DDRAW_Create
 442  *
 443  ***********************************************************************/
 444 static HRESULT
 445 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
 446                     void **obj)
 447 {
 448     HRESULT hr;
 449
 450     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
 451
 452     EnterCriticalSection(&ddraw_cs);
 453     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
 454     LeaveCriticalSection(&ddraw_cs);
 455     return hr;
 456 }
 457
 458 /***********************************************************************
 459  * CF_CreateDirectDraw
 460  *
 461  * Clipper creation function for the class factory
 462  *
 463  * Params:
 464  *  UnkOuter: Set to NULL
 465  *  iid: ID of the wanted interface
 466  *  obj: Address to pass the interface pointer back
 467  *
 468  * Returns
 469  *  DD_OK / DDERR*, see DDRAW_Create
 470  *
 471  ***********************************************************************/
 472 static HRESULT
 473 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
 474                               void **obj)
 475 {
 476     HRESULT hr;
 477     IDirectDrawClipper *Clip;
 478
 479     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
 480
 481     EnterCriticalSection(&ddraw_cs);
 482     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
 483     if (hr != DD_OK)
 484     {
 485         LeaveCriticalSection(&ddraw_cs);
 486         return hr;
 487     }
 488
 489     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
 490     IDirectDrawClipper_Release(Clip);
 491
 492     LeaveCriticalSection(&ddraw_cs);
 493     return hr;
 494 }
 495
 496 static const struct object_creation_info object_creation[] =
 497 {
 498     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
 499     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
 500     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
 501 };
 502
 503
 504 /******************************************************************************
 505  * DirectDraw ClassFactory implementation
 506  ******************************************************************************/
 507 typedef struct
 508 {
 509     IClassFactory IClassFactory_iface;
 510
 511     LONG ref;
 512     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID iid, LPVOID *ppObj);
 513 } IClassFactoryImpl;
 514
 515 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 516 {
 517     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 518 }
 519
 520 /*******************************************************************************
 521  * IDirectDrawClassFactory::QueryInterface
 522  *
 523  * QueryInterface for the class factory
 524  *
 525  * PARAMS
 526  *    riid   Reference to identifier of queried interface
 527  *    ppv    Address to return the interface pointer at
 528  *
 529  * RETURNS
 530  *    Success: S_OK
 531  *    Failure: E_NOINTERFACE
 532  *
 533  *******************************************************************************/
 534 static HRESULT WINAPI IDirectDrawClassFactoryImpl_QueryInterface(IClassFactory *iface, REFIID riid,
 535         void **obj)
 536 {
 537     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 538
 539     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 540
 541     if (IsEqualGUID(riid, &IID_IUnknown)
 542         || IsEqualGUID(riid, &IID_IClassFactory))
 543     {
 544         IClassFactory_AddRef(iface);
 545         *obj = This;
 546         return S_OK;
 547     }
 548
 549     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),obj);
 550     return E_NOINTERFACE;
 551 }
 552
 553 /*******************************************************************************
 554  * IDirectDrawClassFactory::AddRef
 555  *
 556  * AddRef for the class factory
 557  *
 558  * RETURNS
 559  *  The new refcount
 560  *
 561  *******************************************************************************/
 562 static ULONG WINAPI IDirectDrawClassFactoryImpl_AddRef(IClassFactory *iface)
 563 {
 564     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 565     ULONG ref = InterlockedIncrement(&This->ref);
 566
 567     TRACE("%p increasing refcount to %u.\n", This, ref);
 568
 569     return ref;
 570 }
 571
 572 /*******************************************************************************
 573  * IDirectDrawClassFactory::Release
 574  *
 575  * Release for the class factory. If the refcount falls to 0, the object
 576  * is destroyed
 577  *
 578  * RETURNS
 579  *  The new refcount
 580  *
 581  *******************************************************************************/
 582 static ULONG WINAPI IDirectDrawClassFactoryImpl_Release(IClassFactory *iface)
 583 {
 584     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 585     ULONG ref = InterlockedDecrement(&This->ref);
 586
 587     TRACE("%p decreasing refcount to %u.\n", This, ref);
 588
 589     if (ref == 0)
 590         HeapFree(GetProcessHeap(), 0, This);
 591
 592     return ref;
 593 }
 594
 595
 596 /*******************************************************************************
 597  * IDirectDrawClassFactory::CreateInstance
 598  *
 599  * What is this? Seems to create DirectDraw objects...
 600  *
 601  * Params
 602  *  The usual things???
 603  *
 604  * RETURNS
 605  *  ???
 606  *
 607  *******************************************************************************/
 608 static HRESULT WINAPI IDirectDrawClassFactoryImpl_CreateInstance(IClassFactory *iface,
 609         IUnknown *UnkOuter, REFIID riid, void **obj)
 610 {
 611     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 612
 613     TRACE("iface %p, outer_unknown %p, riid %s, object %p.\n",
 614             iface, UnkOuter, debugstr_guid(riid), obj);
 615
 616     return This->pfnCreateInstance(UnkOuter, riid, obj);
 617 }
 618
 619 /*******************************************************************************
 620  * IDirectDrawClassFactory::LockServer
 621  *
 622  * What is this?
 623  *
 624  * Params
 625  *  ???
 626  *
 627  * RETURNS
 628  *  S_OK, because it's a stub
 629  *
 630  *******************************************************************************/
 631 static HRESULT WINAPI IDirectDrawClassFactoryImpl_LockServer(IClassFactory *iface, BOOL dolock)
 632 {
 633     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
 634
 635     return S_OK;
 636 }
 637
 638 /*******************************************************************************
 639  * The class factory VTable
 640  *******************************************************************************/
 641 static const IClassFactoryVtbl IClassFactory_Vtbl =
 642 {
 643     IDirectDrawClassFactoryImpl_QueryInterface,
 644     IDirectDrawClassFactoryImpl_AddRef,
 645     IDirectDrawClassFactoryImpl_Release,
 646     IDirectDrawClassFactoryImpl_CreateInstance,
 647     IDirectDrawClassFactoryImpl_LockServer
 648 };
 649
 650 /*******************************************************************************
 651  * DllGetClassObject [DDRAW.@]
 652  * Retrieves class object from a DLL object
 653  *
 654  * NOTES
 655  *    Docs say returns STDAPI
 656  *
 657  * PARAMS
 658  *    rclsid [I] CLSID for the class object
 659  *    riid   [I] Reference to identifier of interface for class object
 660  *    ppv    [O] Address of variable to receive interface pointer for riid
 661  *
 662  * RETURNS
 663  *    Success: S_OK
 664  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 665  *             E_UNEXPECTED
 666  */
 667 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 668 {
 669     unsigned int i;
 670     IClassFactoryImpl *factory;
 671
 672     TRACE("rclsid %s, riid %s, object %p.\n",
 673             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 674
 675     if (!IsEqualGUID(&IID_IClassFactory, riid)
 676             && !IsEqualGUID(&IID_IUnknown, riid))
 677         return E_NOINTERFACE;
 678
 679     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 680     {
 681         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 682             break;
 683     }
 684
 685     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 686     {
 687         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 688         return CLASS_E_CLASSNOTAVAILABLE;
 689     }
 690
 691     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
 692     if (factory == NULL) return E_OUTOFMEMORY;
 693
 694     factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
 695     factory->ref = 1;
 696
 697     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 698
 699     *ppv = factory;
 700     return S_OK;
 701 }
 702
 703
 704 /*******************************************************************************
 705  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
 706  *
 707  * RETURNS
 708  *    Success: S_OK
 709  *    Failure: S_FALSE
 710  */
 711 HRESULT WINAPI DllCanUnloadNow(void)
 712 {
 713     TRACE("\n");
 714
 715     return S_FALSE;
 716 }
 717
 718
 719 /***********************************************************************
 720  *              DllRegisterServer (DDRAW.@)
 721  */
 722 HRESULT WINAPI DllRegisterServer(void)
 723 {
 724     return __wine_register_resources( instance, NULL );
 725 }
 726
 727 /***********************************************************************
 728  *              DllUnregisterServer (DDRAW.@)
 729  */
 730 HRESULT WINAPI DllUnregisterServer(void)
 731 {
 732     return __wine_unregister_resources( instance, NULL );
 733 }
 734
 735 /*******************************************************************************
 736  * DestroyCallback
 737  *
 738  * Callback function for the EnumSurfaces call in DllMain.
 739  * Dumps some surface info and releases the surface
 740  *
 741  * Params:
 742  *  surf: The enumerated surface
 743  *  desc: it's description
 744  *  context: Pointer to the ddraw impl
 745  *
 746  * Returns:
 747  *  DDENUMRET_OK;
 748  *******************************************************************************/
 749 static HRESULT WINAPI
 750 DestroyCallback(IDirectDrawSurface7 *surf,
 751                 DDSURFACEDESC2 *desc,
 752                 void *context)
 753 {
 754     IDirectDrawSurfaceImpl *Impl = (IDirectDrawSurfaceImpl *)surf;
 755     ULONG ref;
 756
 757     ref = IDirectDrawSurface7_Release(surf);  /* For the EnumSurfaces */
 758     WARN("Surface %p has an reference count of %d\n", Impl, ref);
 759
 760     /* Skip surfaces which are attached somewhere or which are
 761      * part of a complex compound. They will get released when destroying
 762      * the root
 763      */
 764     if( (!Impl->is_complex_root) || (Impl->first_attached != Impl) )
 765         return DDENUMRET_OK;
 766
 767     /* Destroy the surface */
 768     while(ref) ref = IDirectDrawSurface7_Release(surf);
 769
 770     return DDENUMRET_OK;
 771 }
 772
 773 /***********************************************************************
 774  * get_config_key
 775  *
 776  * Reads a config key from the registry. Taken from WineD3D
 777  *
 778  ***********************************************************************/
 779 static inline DWORD get_config_key(HKEY defkey, HKEY appkey, const char* name, char* buffer, DWORD size)
 780 {
 781     if (0 != appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 782     if (0 != defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
 783     return ERROR_FILE_NOT_FOUND;
 784 }
 785
 786 /***********************************************************************
 787  * DllMain (DDRAW.0)
 788  *
 789  * Could be used to register DirectDraw drivers, if we have more than
 790  * one. Also used to destroy any objects left at unload if the
 791  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
 792  *
 793  ***********************************************************************/
 794 BOOL WINAPI
 795 DllMain(HINSTANCE hInstDLL,
 796         DWORD Reason,
 797         LPVOID lpv)
 798 {
 799     TRACE("(%p,%x,%p)\n", hInstDLL, Reason, lpv);
 800     if (Reason == DLL_PROCESS_ATTACH)
 801     {
 802         char buffer[MAX_PATH+10];
 803         DWORD size = sizeof(buffer);
 804         HKEY hkey = 0;
 805         HKEY appkey = 0;
 806         WNDCLASSA wc;
 807         DWORD len;
 808
 809         /* Register the window class. This is used to create a hidden window
 810          * for D3D rendering, if the application didn't pass one. It can also
 811          * be used for creating a device window from SetCooperativeLevel(). */
 812         wc.style = CS_HREDRAW | CS_VREDRAW;
 813         wc.lpfnWndProc = DefWindowProcA;
 814         wc.cbClsExtra = 0;
 815         wc.cbWndExtra = 0;
 816         wc.hInstance = hInstDLL;
 817         wc.hIcon = 0;
 818         wc.hCursor = 0;
 819         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
 820         wc.lpszMenuName = NULL;
 821         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
 822         if (!RegisterClassA(&wc))
 823         {
 824             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
 825             return FALSE;
 826         }
 827
 828        /* @@ Wine registry key: HKCU\Software\Wine\Direct3D */
 829        if ( RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Direct3D", &hkey ) ) hkey = 0;
 830
 831        len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 832        if (len && len < MAX_PATH)
 833        {
 834             HKEY tmpkey;
 835             /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Direct3D */
 836             if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 837             {
 838                 char *p, *appname = buffer;
 839                 if ((p = strrchr( appname, '/' ))) appname = p + 1;
 840                 if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 841                 strcat( appname, "\\Direct3D" );
 842                 TRACE("appname = [%s]\n", appname);
 843                 if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 844                 RegCloseKey( tmpkey );
 845             }
 846        }
 847
 848        if ( 0 != hkey || 0 != appkey )
 849        {
 850             if ( !get_config_key( hkey, appkey, "DirectDrawRenderer", buffer, size) )
 851             {
 852                 if (!strcmp(buffer,"gdi"))
 853                 {
 854                     TRACE("Defaulting to GDI surfaces\n");
 855                     DefaultSurfaceType = SURFACE_GDI;
 856                 }
 857                 else if (!strcmp(buffer,"opengl"))
 858                 {
 859                     TRACE("Defaulting to opengl surfaces\n");
 860                     DefaultSurfaceType = SURFACE_OPENGL;
 861                 }
 862                 else
 863                 {
 864                     ERR("Unknown default surface type. Supported are:\n gdi, opengl\n");
 865                 }
 866             }
 867         }
 868
 869         /* On Windows one can force the refresh rate that DirectDraw uses by
 870          * setting an override value in dxdiag.  This is documented in KB315614
 871          * (main article), KB230002, and KB217348.  By comparing registry dumps
 872          * before and after setting the override, we see that the override value
 873          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
 874          * DWORD that represents the refresh rate to force.  We use this
 875          * registry entry to modify the behavior of SetDisplayMode so that Wine
 876          * users can override the refresh rate in a Windows-compatible way.
 877          *
 878          * dxdiag will not accept a refresh rate lower than 40 or higher than
 879          * 120 so this value should be within that range.  It is, of course,
 880          * possible for a user to set the registry entry value directly so that
 881          * assumption might not hold.
 882          *
 883          * There is no current mechanism for setting this value through the Wine
 884          * GUI.  It would be most appropriate to set this value through a dxdiag
 885          * clone, but it may be sufficient to use winecfg.
 886          *
 887          * TODO: Create a mechanism for setting this value through the Wine GUI.
 888          */
 889         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
 890         {
 891             DWORD type, data;
 892             size = sizeof(data);
 893             if (!RegQueryValueExA( hkey, "ForceRefreshRate", NULL, &type, (LPBYTE)&data, &size ) && type == REG_DWORD)
 894             {
 895                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
 896                 force_refresh_rate = data;
 897             }
 898             RegCloseKey( hkey );
 899         }
 900
 901         instance = hInstDLL;
 902         DisableThreadLibraryCalls(hInstDLL);
 903     }
 904     else if (Reason == DLL_PROCESS_DETACH)
 905     {
 906         if(!list_empty(&global_ddraw_list))
 907         {
 908             struct list *entry, *entry2;
 909             WARN("There are still existing DirectDraw interfaces. Wine bug or buggy application?\n");
 910
 911             /* We remove elements from this loop */
 912             LIST_FOR_EACH_SAFE(entry, entry2, &global_ddraw_list)
 913             {
 914                 HRESULT hr;
 915                 DDSURFACEDESC2 desc;
 916                 int i;
 917                 IDirectDrawImpl *ddraw = LIST_ENTRY(entry, IDirectDrawImpl, ddraw_list_entry);
 918
 919                 WARN("DDraw %p has a refcount of %d\n", ddraw, ddraw->ref7 + ddraw->ref4 + ddraw->ref3 + ddraw->ref2 + ddraw->ref1);
 920
 921                 /* Add references to each interface to avoid freeing them unexpectedly */
 922                 IDirectDraw_AddRef(&ddraw->IDirectDraw_iface);
 923                 IDirectDraw2_AddRef(&ddraw->IDirectDraw2_iface);
 924                 IDirectDraw3_AddRef(&ddraw->IDirectDraw3_iface);
 925                 IDirectDraw4_AddRef(&ddraw->IDirectDraw4_iface);
 926                 IDirectDraw7_AddRef(&ddraw->IDirectDraw7_iface);
 927
 928                 /* Does a D3D device exist? Destroy it
 929                     * TODO: Destroy all Vertex buffers, Lights, Materials
 930                     * and execute buffers too
 931                     */
 932                 if(ddraw->d3ddevice)
 933                 {
 934                     WARN("DDraw %p has d3ddevice %p attached\n", ddraw, ddraw->d3ddevice);
 935                     while(IDirect3DDevice7_Release((IDirect3DDevice7 *)ddraw->d3ddevice));
 936                 }
 937
 938                 /* Try to release the objects
 939                     * Do an EnumSurfaces to find any hanging surfaces
 940                     */
 941                 memset(&desc, 0, sizeof(desc));
 942                 desc.dwSize = sizeof(desc);
 943                 for(i = 0; i <= 1; i++)
 944                 {
 945                     hr = IDirectDraw7_EnumSurfaces(&ddraw->IDirectDraw7_iface, DDENUMSURFACES_ALL,
 946                             &desc, ddraw, DestroyCallback);
 947                     if(hr != D3D_OK)
 948                         ERR("(%p) EnumSurfaces failed, prepare for trouble\n", ddraw);
 949                 }
 950
 951                 /* Check the surface count */
 952                 if(ddraw->surfaces > 0)
 953                     ERR("DDraw %p still has %d surfaces attached\n", ddraw, ddraw->surfaces);
 954
 955                 /* Release all hanging references to destroy the objects. This
 956                     * restores the screen mode too
 957                     */
 958                 while(IDirectDraw_Release(&ddraw->IDirectDraw_iface));
 959                 while(IDirectDraw2_Release(&ddraw->IDirectDraw2_iface));
 960                 while(IDirectDraw3_Release(&ddraw->IDirectDraw3_iface));
 961                 while(IDirectDraw4_Release(&ddraw->IDirectDraw4_iface));
 962                 while(IDirectDraw7_Release(&ddraw->IDirectDraw7_iface));
 963             }
 964         }
 965
 966         /* Unregister the window class. */
 967         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, hInstDLL);
 968     }
 969
 970     return TRUE;
 971 }