xref: /reactos/dll/directx/wine/ddraw/main.c (revision 9987f029)
1 /*        DirectDraw Base Functions
2  *
3  * Copyright 1997-1999 Marcus Meissner
4  * Copyright 1998 Lionel Ulmer
5  * Copyright 2000-2001 TransGaming Technologies Inc.
6  * Copyright 2006 Stefan Dösinger
7  * Copyright 2008 Denver Gingerich
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22  */
23 
24 #include "config.h"
25 #include "wine/port.h"
26 
27 #define DDRAW_INIT_GUID
28 #include "ddraw_private.h"
29 #include "rpcproxy.h"
30 
31 #include "wine/exception.h"
32 #include "winreg.h"
33 
34 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
35 
36 static struct list global_ddraw_list = LIST_INIT(global_ddraw_list);
37 
38 static HINSTANCE instance;
39 
40 /* value of ForceRefreshRate */
41 DWORD force_refresh_rate = 0;
42 
43 /* Structure for converting DirectDrawEnumerateA to DirectDrawEnumerateExA */
44 struct callback_info
45 {
46     LPDDENUMCALLBACKA callback;
47     void *context;
48 };
49 
50 /* Enumeration callback for converting DirectDrawEnumerateA to DirectDrawEnumerateExA */
enum_callback(GUID * guid,char * description,char * driver_name,void * context,HMONITOR monitor)51 static BOOL CALLBACK enum_callback(GUID *guid, char *description, char *driver_name,
52                                       void *context, HMONITOR monitor)
53 {
54     const struct callback_info *info = context;
55 
56     return info->callback(guid, description, driver_name, info->context);
57 }
58 
ddraw_enumerate_secondary_devices(struct wined3d * wined3d,LPDDENUMCALLBACKEXA callback,void * context)59 static void ddraw_enumerate_secondary_devices(struct wined3d *wined3d, LPDDENUMCALLBACKEXA callback,
60                                               void *context)
61 {
62     struct wined3d_adapter_identifier adapter_id;
63     struct wined3d_output_desc output_desc;
64     BOOL cont_enum = TRUE;
65     HRESULT hr = S_OK;
66     UINT adapter = 0;
67 
68     for (adapter = 0; SUCCEEDED(hr) && cont_enum; adapter++)
69     {
70         char DriverName[512] = "", DriverDescription[512] = "";
71 
72         /* The Battle.net System Checker expects the GetAdapterIdentifier DeviceName to match the
73          * Driver Name, so obtain the DeviceName and GUID from D3D. */
74         memset(&adapter_id, 0x0, sizeof(adapter_id));
75         adapter_id.device_name = DriverName;
76         adapter_id.device_name_size = sizeof(DriverName);
77         adapter_id.description = DriverDescription;
78         adapter_id.description_size = sizeof(DriverDescription);
79         wined3d_mutex_lock();
80         if (SUCCEEDED(hr = wined3d_get_adapter_identifier(wined3d, adapter, 0x0, &adapter_id)))
81             hr = wined3d_get_output_desc(wined3d, adapter, &output_desc);
82         wined3d_mutex_unlock();
83         if (SUCCEEDED(hr))
84         {
85             TRACE("Interface %d: %s\n", adapter, wine_dbgstr_guid(&adapter_id.device_identifier));
86             cont_enum = callback(&adapter_id.device_identifier, adapter_id.description,
87                     adapter_id.device_name, context, output_desc.monitor);
88         }
89     }
90 }
91 
92 /* Handle table functions */
ddraw_handle_table_init(struct ddraw_handle_table * t,UINT initial_size)93 BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size)
94 {
95     if (!(t->entries = heap_alloc_zero(initial_size * sizeof(*t->entries))))
96     {
97         ERR("Failed to allocate handle table memory.\n");
98         return FALSE;
99     }
100     t->free_entries = NULL;
101     t->table_size = initial_size;
102     t->entry_count = 0;
103 
104     return TRUE;
105 }
106 
ddraw_handle_table_destroy(struct ddraw_handle_table * t)107 void ddraw_handle_table_destroy(struct ddraw_handle_table *t)
108 {
109     heap_free(t->entries);
110     memset(t, 0, sizeof(*t));
111 }
112 
ddraw_allocate_handle(struct ddraw_handle_table * t,void * object,enum ddraw_handle_type type)113 DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type)
114 {
115     struct ddraw_handle_entry *entry;
116 
117     if (t->free_entries)
118     {
119         DWORD idx = t->free_entries - t->entries;
120         /* Use a free handle */
121         entry = t->free_entries;
122         if (entry->type != DDRAW_HANDLE_FREE)
123         {
124             ERR("Handle %#x (%p) is in the free list, but has type %#x.\n", idx, entry->object, entry->type);
125             return DDRAW_INVALID_HANDLE;
126         }
127         t->free_entries = entry->object;
128         entry->object = object;
129         entry->type = type;
130 
131         return idx;
132     }
133 
134     if (!(t->entry_count < t->table_size))
135     {
136         /* Grow the table */
137         UINT new_size = t->table_size + (t->table_size >> 1);
138         struct ddraw_handle_entry *new_entries;
139 
140         if (!(new_entries = heap_realloc(t->entries, new_size * sizeof(*t->entries))))
141         {
142             ERR("Failed to grow the handle table.\n");
143             return DDRAW_INVALID_HANDLE;
144         }
145         t->entries = new_entries;
146         t->table_size = new_size;
147     }
148 
149     entry = &t->entries[t->entry_count];
150     entry->object = object;
151     entry->type = type;
152 
153     return t->entry_count++;
154 }
155 
ddraw_free_handle(struct ddraw_handle_table * t,DWORD handle,enum ddraw_handle_type type)156 void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
157 {
158     struct ddraw_handle_entry *entry;
159     void *object;
160 
161     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
162     {
163         WARN("Invalid handle %#x passed.\n", handle);
164         return NULL;
165     }
166 
167     entry = &t->entries[handle];
168     if (entry->type != type)
169     {
170         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
171         return NULL;
172     }
173 
174     object = entry->object;
175     entry->object = t->free_entries;
176     entry->type = DDRAW_HANDLE_FREE;
177     t->free_entries = entry;
178 
179     return object;
180 }
181 
ddraw_get_object(struct ddraw_handle_table * t,DWORD handle,enum ddraw_handle_type type)182 void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type)
183 {
184     struct ddraw_handle_entry *entry;
185 
186     if (handle == DDRAW_INVALID_HANDLE || handle >= t->entry_count)
187     {
188         WARN("Invalid handle %#x passed.\n", handle);
189         return NULL;
190     }
191 
192     entry = &t->entries[handle];
193     if (entry->type != type)
194     {
195         WARN("Handle %#x (%p) is not of type %#x.\n", handle, entry->object, type);
196         return NULL;
197     }
198 
199     return entry->object;
200 }
201 
GetSurfaceFromDC(HDC dc,IDirectDrawSurface4 ** surface,HDC * device_dc)202 HRESULT WINAPI GetSurfaceFromDC(HDC dc, IDirectDrawSurface4 **surface, HDC *device_dc)
203 {
204     struct ddraw *ddraw;
205 
206     TRACE("dc %p, surface %p, device_dc %p.\n", dc, surface, device_dc);
207 
208     if (!surface)
209         return E_INVALIDARG;
210 
211     if (!device_dc)
212     {
213         *surface = NULL;
214 
215         return E_INVALIDARG;
216     }
217 
218     wined3d_mutex_lock();
219     LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
220     {
221         if (FAILED(IDirectDraw4_GetSurfaceFromDC(&ddraw->IDirectDraw4_iface, dc, surface)))
222             continue;
223 
224         *device_dc = NULL; /* FIXME */
225         wined3d_mutex_unlock();
226         return DD_OK;
227     }
228     wined3d_mutex_unlock();
229 
230     *surface = NULL;
231     *device_dc = NULL;
232 
233     return DDERR_NOTFOUND;
234 }
235 
236 /***********************************************************************
237  *
238  * Helper function for DirectDrawCreate and friends
239  * Creates a new DDraw interface with the given REFIID
240  *
241  * Interfaces that can be created:
242  *  IDirectDraw, IDirectDraw2, IDirectDraw4, IDirectDraw7
243  *  IDirect3D, IDirect3D2, IDirect3D3, IDirect3D7. (Does Windows return
244  *  IDirect3D interfaces?)
245  *
246  * Arguments:
247  *  guid: ID of the requested driver, NULL for the default driver.
248  *        The GUID can be queried with DirectDrawEnumerate(Ex)A/W
249  *  DD: Used to return the pointer to the created object
250  *  UnkOuter: For aggregation, which is unsupported. Must be NULL
251  *  iid: requested version ID.
252  *
253  * Returns:
254  *  DD_OK if the Interface was created successfully
255  *  CLASS_E_NOAGGREGATION if UnkOuter is not NULL
256  *  E_OUTOFMEMORY if some allocation failed
257  *
258  ***********************************************************************/
259 static HRESULT
DDRAW_Create(const GUID * guid,void ** DD,IUnknown * UnkOuter,REFIID iid)260 DDRAW_Create(const GUID *guid,
261              void **DD,
262              IUnknown *UnkOuter,
263              REFIID iid)
264 {
265     enum wined3d_device_type device_type;
266     struct ddraw *ddraw;
267     HRESULT hr;
268     DWORD flags = 0;
269 
270     TRACE("driver_guid %s, ddraw %p, outer_unknown %p, interface_iid %s.\n",
271             debugstr_guid(guid), DD, UnkOuter, debugstr_guid(iid));
272 
273     *DD = NULL;
274 
275     if (guid == (GUID *) DDCREATE_EMULATIONONLY)
276     {
277         /* Use the reference device id. This doesn't actually change anything,
278          * WineD3D always uses OpenGL for D3D rendering. One could make it request
279          * indirect rendering
280          */
281         device_type = WINED3D_DEVICE_TYPE_REF;
282     }
283     else if(guid == (GUID *) DDCREATE_HARDWAREONLY)
284     {
285         device_type = WINED3D_DEVICE_TYPE_HAL;
286     }
287     else
288     {
289         device_type = 0;
290     }
291 
292     /* DDraw doesn't support aggregation, according to msdn */
293     if (UnkOuter != NULL)
294         return CLASS_E_NOAGGREGATION;
295 
296     if (!IsEqualGUID(iid, &IID_IDirectDraw7))
297         flags = WINED3D_LEGACY_FFP_LIGHTING;
298 
299     /* DirectDraw creation comes here */
300     if (!(ddraw = heap_alloc_zero(sizeof(*ddraw))))
301     {
302         ERR("Out of memory when creating DirectDraw\n");
303         return E_OUTOFMEMORY;
304     }
305 
306     hr = ddraw_init(ddraw, flags, device_type);
307     if (FAILED(hr))
308     {
309         WARN("Failed to initialize ddraw object, hr %#x.\n", hr);
310         heap_free(ddraw);
311         return hr;
312     }
313 
314     hr = IDirectDraw7_QueryInterface(&ddraw->IDirectDraw7_iface, iid, DD);
315     IDirectDraw7_Release(&ddraw->IDirectDraw7_iface);
316     if (SUCCEEDED(hr))
317         list_add_head(&global_ddraw_list, &ddraw->ddraw_list_entry);
318     else
319         WARN("Failed to query interface %s from ddraw object %p.\n", debugstr_guid(iid), ddraw);
320 
321     return hr;
322 }
323 
324 /***********************************************************************
325  * DirectDrawCreate (DDRAW.@)
326  *
327  * Creates legacy DirectDraw Interfaces. Can't create IDirectDraw7
328  * interfaces in theory
329  *
330  * Arguments, return values: See DDRAW_Create
331  *
332  ***********************************************************************/
DirectDrawCreate(GUID * driver_guid,IDirectDraw ** ddraw,IUnknown * outer)333 HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreate(GUID *driver_guid, IDirectDraw **ddraw, IUnknown *outer)
334 {
335     HRESULT hr;
336 
337     TRACE("driver_guid %s, ddraw %p, outer %p.\n",
338             debugstr_guid(driver_guid), ddraw, outer);
339 
340     wined3d_mutex_lock();
341     hr = DDRAW_Create(driver_guid, (void **)ddraw, outer, &IID_IDirectDraw);
342     wined3d_mutex_unlock();
343 
344     if (SUCCEEDED(hr))
345     {
346         if (FAILED(hr = IDirectDraw_Initialize(*ddraw, driver_guid)))
347             IDirectDraw_Release(*ddraw);
348     }
349 
350     return hr;
351 }
352 
353 /***********************************************************************
354  * DirectDrawCreateEx (DDRAW.@)
355  *
356  * Only creates new IDirectDraw7 interfaces, supposed to fail if legacy
357  * interfaces are requested.
358  *
359  * Arguments, return values: See DDRAW_Create
360  *
361  ***********************************************************************/
DirectDrawCreateEx(GUID * driver_guid,void ** ddraw,REFIID interface_iid,IUnknown * outer)362 HRESULT WINAPI DECLSPEC_HOTPATCH DirectDrawCreateEx(GUID *driver_guid,
363         void **ddraw, REFIID interface_iid, IUnknown *outer)
364 {
365     HRESULT hr;
366 
367     TRACE("driver_guid %s, ddraw %p, interface_iid %s, outer %p.\n",
368             debugstr_guid(driver_guid), ddraw, debugstr_guid(interface_iid), outer);
369 
370     if (!IsEqualGUID(interface_iid, &IID_IDirectDraw7))
371         return DDERR_INVALIDPARAMS;
372 
373     wined3d_mutex_lock();
374     hr = DDRAW_Create(driver_guid, ddraw, outer, interface_iid);
375     wined3d_mutex_unlock();
376 
377     if (SUCCEEDED(hr))
378     {
379         IDirectDraw7 *ddraw7 = *(IDirectDraw7 **)ddraw;
380         hr = IDirectDraw7_Initialize(ddraw7, driver_guid);
381         if (FAILED(hr))
382             IDirectDraw7_Release(ddraw7);
383     }
384 
385     return hr;
386 }
387 
388 /***********************************************************************
389  * DirectDrawEnumerateA (DDRAW.@)
390  *
391  * Enumerates legacy ddraw drivers, ascii version. We only have one
392  * driver, which relays to WineD3D. If we were sufficiently cool,
393  * we could offer various interfaces, which use a different default surface
394  * implementation, but I think it's better to offer this choice in
395  * winecfg, because some apps use the default driver, so we would need
396  * a winecfg option anyway, and there shouldn't be 2 ways to set one setting
397  *
398  * Arguments:
399  *  Callback: Callback function from the app
400  *  Context: Argument to the call back.
401  *
402  * Returns:
403  *  DD_OK on success
404  *  E_INVALIDARG if the Callback caused a page fault
405  *
406  *
407  ***********************************************************************/
DirectDrawEnumerateA(LPDDENUMCALLBACKA callback,void * context)408 HRESULT WINAPI DirectDrawEnumerateA(LPDDENUMCALLBACKA callback, void *context)
409 {
410     struct callback_info info;
411 
412     TRACE("callback %p, context %p.\n", callback, context);
413 
414     info.callback = callback;
415     info.context = context;
416     return DirectDrawEnumerateExA(enum_callback, &info, 0x0);
417 }
418 
419 /***********************************************************************
420  * DirectDrawEnumerateExA (DDRAW.@)
421  *
422  * Enumerates DirectDraw7 drivers, ascii version. See
423  * the comments above DirectDrawEnumerateA for more details.
424  *
425  * The Flag member is not supported right now.
426  *
427  ***********************************************************************/
DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA callback,void * context,DWORD flags)428 HRESULT WINAPI DirectDrawEnumerateExA(LPDDENUMCALLBACKEXA callback, void *context, DWORD flags)
429 {
430     struct wined3d *wined3d;
431 
432     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
433 
434     if (flags & ~(DDENUM_ATTACHEDSECONDARYDEVICES |
435                   DDENUM_DETACHEDSECONDARYDEVICES |
436                   DDENUM_NONDISPLAYDEVICES))
437         return DDERR_INVALIDPARAMS;
438 
439     if (flags & ~DDENUM_ATTACHEDSECONDARYDEVICES)
440         FIXME("flags 0x%08x not handled\n", flags & ~DDENUM_ATTACHEDSECONDARYDEVICES);
441 
442     TRACE("Enumerating ddraw interfaces\n");
443     if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS)))
444     {
445         if (!(wined3d = wined3d_create(DDRAW_WINED3D_FLAGS | WINED3D_NO3D)))
446         {
447             WARN("Failed to create a wined3d object.\n");
448             return E_FAIL;
449         }
450 
451         WARN("Created a wined3d object without 3D support.\n");
452     }
453 
454     __TRY
455     {
456         /* QuickTime expects the description "DirectDraw HAL" */
457         static CHAR driver_desc[] = "DirectDraw HAL",
458         driver_name[] = "display";
459         BOOL cont_enum;
460 
461         TRACE("Default interface: DirectDraw HAL\n");
462         cont_enum = callback(NULL, driver_desc, driver_name, context, 0);
463 
464         /* The Battle.net System Checker expects both a NULL device and a GUID-based device */
465         if (cont_enum && (flags & DDENUM_ATTACHEDSECONDARYDEVICES))
466             ddraw_enumerate_secondary_devices(wined3d, callback, context);
467     }
468     __EXCEPT_PAGE_FAULT
469     {
470         wined3d_decref(wined3d);
471         return DDERR_INVALIDPARAMS;
472     }
473     __ENDTRY;
474 
475     wined3d_decref(wined3d);
476     TRACE("End of enumeration\n");
477     return DD_OK;
478 }
479 
480 /***********************************************************************
481  * DirectDrawEnumerateW (DDRAW.@)
482  *
483  * Enumerates legacy drivers, unicode version.
484  * This function is not implemented on Windows.
485  *
486  ***********************************************************************/
DirectDrawEnumerateW(LPDDENUMCALLBACKW callback,void * context)487 HRESULT WINAPI DirectDrawEnumerateW(LPDDENUMCALLBACKW callback, void *context)
488 {
489     TRACE("callback %p, context %p.\n", callback, context);
490 
491     if (!callback)
492         return DDERR_INVALIDPARAMS;
493     else
494         return DDERR_UNSUPPORTED;
495 }
496 
497 /***********************************************************************
498  * DirectDrawEnumerateExW (DDRAW.@)
499  *
500  * Enumerates DirectDraw7 drivers, unicode version.
501  * This function is not implemented on Windows.
502  *
503  ***********************************************************************/
DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback,void * context,DWORD flags)504 HRESULT WINAPI DirectDrawEnumerateExW(LPDDENUMCALLBACKEXW callback, void *context, DWORD flags)
505 {
506     TRACE("callback %p, context %p, flags %#x.\n", callback, context, flags);
507 
508     return DDERR_UNSUPPORTED;
509 }
510 
511 /***********************************************************************
512  * Classfactory implementation.
513  ***********************************************************************/
514 
515 /***********************************************************************
516  * CF_CreateDirectDraw
517  *
518  * DDraw creation function for the class factory
519  *
520  * Params:
521  *  UnkOuter: Set to NULL
522  *  iid: ID of the wanted interface
523  *  obj: Address to pass the interface pointer back
524  *
525  * Returns
526  *  DD_OK / DDERR*, see DDRAW_Create
527  *
528  ***********************************************************************/
529 static HRESULT
CF_CreateDirectDraw(IUnknown * UnkOuter,REFIID iid,void ** obj)530 CF_CreateDirectDraw(IUnknown* UnkOuter, REFIID iid,
531                     void **obj)
532 {
533     HRESULT hr;
534 
535     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(iid), obj);
536 
537     wined3d_mutex_lock();
538     hr = DDRAW_Create(NULL, obj, UnkOuter, iid);
539     wined3d_mutex_unlock();
540 
541     return hr;
542 }
543 
544 /***********************************************************************
545  * CF_CreateDirectDraw
546  *
547  * Clipper creation function for the class factory
548  *
549  * Params:
550  *  UnkOuter: Set to NULL
551  *  iid: ID of the wanted interface
552  *  obj: Address to pass the interface pointer back
553  *
554  * Returns
555  *  DD_OK / DDERR*, see DDRAW_Create
556  *
557  ***********************************************************************/
558 static HRESULT
CF_CreateDirectDrawClipper(IUnknown * UnkOuter,REFIID riid,void ** obj)559 CF_CreateDirectDrawClipper(IUnknown* UnkOuter, REFIID riid,
560                               void **obj)
561 {
562     HRESULT hr;
563     IDirectDrawClipper *Clip;
564 
565     TRACE("outer_unknown %p, riid %s, object %p.\n", UnkOuter, debugstr_guid(riid), obj);
566 
567     wined3d_mutex_lock();
568     hr = DirectDrawCreateClipper(0, &Clip, UnkOuter);
569     if (hr != DD_OK)
570     {
571         wined3d_mutex_unlock();
572         return hr;
573     }
574 
575     hr = IDirectDrawClipper_QueryInterface(Clip, riid, obj);
576     IDirectDrawClipper_Release(Clip);
577 
578     wined3d_mutex_unlock();
579 
580     return hr;
581 }
582 
583 static const struct object_creation_info object_creation[] =
584 {
585     { &CLSID_DirectDraw,        CF_CreateDirectDraw },
586     { &CLSID_DirectDraw7,       CF_CreateDirectDraw },
587     { &CLSID_DirectDrawClipper, CF_CreateDirectDrawClipper }
588 };
589 
590 struct ddraw_class_factory
591 {
592     IClassFactory IClassFactory_iface;
593 
594     LONG ref;
595     HRESULT (*pfnCreateInstance)(IUnknown *outer, REFIID iid, void **out);
596 };
597 
impl_from_IClassFactory(IClassFactory * iface)598 static inline struct ddraw_class_factory *impl_from_IClassFactory(IClassFactory *iface)
599 {
600     return CONTAINING_RECORD(iface, struct ddraw_class_factory, IClassFactory_iface);
601 }
602 
603 /*******************************************************************************
604  * IDirectDrawClassFactory::QueryInterface
605  *
606  * QueryInterface for the class factory
607  *
608  * PARAMS
609  *    riid   Reference to identifier of queried interface
610  *    ppv    Address to return the interface pointer at
611  *
612  * RETURNS
613  *    Success: S_OK
614  *    Failure: E_NOINTERFACE
615  *
616  *******************************************************************************/
ddraw_class_factory_QueryInterface(IClassFactory * iface,REFIID riid,void ** out)617 static HRESULT WINAPI ddraw_class_factory_QueryInterface(IClassFactory *iface, REFIID riid, void **out)
618 {
619     TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);
620 
621     if (IsEqualGUID(riid, &IID_IUnknown)
622         || IsEqualGUID(riid, &IID_IClassFactory))
623     {
624         IClassFactory_AddRef(iface);
625         *out = iface;
626         return S_OK;
627     }
628 
629     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
630 
631     return E_NOINTERFACE;
632 }
633 
634 /*******************************************************************************
635  * IDirectDrawClassFactory::AddRef
636  *
637  * AddRef for the class factory
638  *
639  * RETURNS
640  *  The new refcount
641  *
642  *******************************************************************************/
ddraw_class_factory_AddRef(IClassFactory * iface)643 static ULONG WINAPI ddraw_class_factory_AddRef(IClassFactory *iface)
644 {
645     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
646     ULONG ref = InterlockedIncrement(&factory->ref);
647 
648     TRACE("%p increasing refcount to %u.\n", factory, ref);
649 
650     return ref;
651 }
652 
653 /*******************************************************************************
654  * IDirectDrawClassFactory::Release
655  *
656  * Release for the class factory. If the refcount falls to 0, the object
657  * is destroyed
658  *
659  * RETURNS
660  *  The new refcount
661  *
662  *******************************************************************************/
ddraw_class_factory_Release(IClassFactory * iface)663 static ULONG WINAPI ddraw_class_factory_Release(IClassFactory *iface)
664 {
665     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
666     ULONG ref = InterlockedDecrement(&factory->ref);
667 
668     TRACE("%p decreasing refcount to %u.\n", factory, ref);
669 
670     if (!ref)
671         heap_free(factory);
672 
673     return ref;
674 }
675 
676 
677 /*******************************************************************************
678  * IDirectDrawClassFactory::CreateInstance
679  *
680  * What is this? Seems to create DirectDraw objects...
681  *
682  * Params
683  *  The usual things???
684  *
685  * RETURNS
686  *  ???
687  *
688  *******************************************************************************/
ddraw_class_factory_CreateInstance(IClassFactory * iface,IUnknown * outer_unknown,REFIID riid,void ** out)689 static HRESULT WINAPI ddraw_class_factory_CreateInstance(IClassFactory *iface,
690         IUnknown *outer_unknown, REFIID riid, void **out)
691 {
692     struct ddraw_class_factory *factory = impl_from_IClassFactory(iface);
693 
694     TRACE("iface %p, outer_unknown %p, riid %s, out %p.\n",
695             iface, outer_unknown, debugstr_guid(riid), out);
696 
697     return factory->pfnCreateInstance(outer_unknown, riid, out);
698 }
699 
700 /*******************************************************************************
701  * IDirectDrawClassFactory::LockServer
702  *
703  * What is this?
704  *
705  * Params
706  *  ???
707  *
708  * RETURNS
709  *  S_OK, because it's a stub
710  *
711  *******************************************************************************/
ddraw_class_factory_LockServer(IClassFactory * iface,BOOL dolock)712 static HRESULT WINAPI ddraw_class_factory_LockServer(IClassFactory *iface, BOOL dolock)
713 {
714     FIXME("iface %p, dolock %#x stub!\n", iface, dolock);
715 
716     return S_OK;
717 }
718 
719 /*******************************************************************************
720  * The class factory VTable
721  *******************************************************************************/
722 static const IClassFactoryVtbl IClassFactory_Vtbl =
723 {
724     ddraw_class_factory_QueryInterface,
725     ddraw_class_factory_AddRef,
726     ddraw_class_factory_Release,
727     ddraw_class_factory_CreateInstance,
728     ddraw_class_factory_LockServer
729 };
730 
DllGetClassObject(REFCLSID rclsid,REFIID riid,void ** out)731 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **out)
732 {
733     struct ddraw_class_factory *factory;
734     unsigned int i;
735 
736     TRACE("rclsid %s, riid %s, out %p.\n",
737             debugstr_guid(rclsid), debugstr_guid(riid), out);
738 
739     if (!IsEqualGUID(&IID_IClassFactory, riid)
740             && !IsEqualGUID(&IID_IUnknown, riid))
741         return E_NOINTERFACE;
742 
743     for (i=0; i < ARRAY_SIZE(object_creation); i++)
744     {
745         if (IsEqualGUID(object_creation[i].clsid, rclsid))
746             break;
747     }
748 
749     if (i == ARRAY_SIZE(object_creation))
750     {
751         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
752         return CLASS_E_CLASSNOTAVAILABLE;
753     }
754 
755     if (!(factory = heap_alloc_zero(sizeof(*factory))))
756         return E_OUTOFMEMORY;
757 
758     factory->IClassFactory_iface.lpVtbl = &IClassFactory_Vtbl;
759     factory->ref = 1;
760 
761     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
762 
763     *out = factory;
764     return S_OK;
765 }
766 
767 
768 /*******************************************************************************
769  * DllCanUnloadNow [DDRAW.@]  Determines whether the DLL is in use.
770  *
771  * RETURNS
772  *    Success: S_OK
773  *    Failure: S_FALSE
774  */
DllCanUnloadNow(void)775 HRESULT WINAPI DllCanUnloadNow(void)
776 {
777     TRACE("\n");
778 
779     return S_FALSE;
780 }
781 
782 
DllRegisterServer(void)783 HRESULT WINAPI DllRegisterServer(void)
784 {
785     return __wine_register_resources( instance );
786 }
787 
DllUnregisterServer(void)788 HRESULT WINAPI DllUnregisterServer(void)
789 {
790     return __wine_unregister_resources( instance );
791 }
792 
793 /***********************************************************************
794  * DllMain (DDRAW.0)
795  *
796  * Could be used to register DirectDraw drivers, if we have more than
797  * one. Also used to destroy any objects left at unload if the
798  * app didn't release them properly(Gothic 2, Diablo 2, Moto racer, ...)
799  *
800  ***********************************************************************/
DllMain(HINSTANCE inst,DWORD reason,void * reserved)801 BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, void *reserved)
802 {
803     switch (reason)
804     {
805     case DLL_PROCESS_ATTACH:
806     {
807         static HMODULE ddraw_self;
808         HKEY hkey = 0;
809         WNDCLASSA wc;
810 
811         /* Register the window class. This is used to create a hidden window
812          * for D3D rendering, if the application didn't pass one. It can also
813          * be used for creating a device window from SetCooperativeLevel(). */
814         wc.style = CS_HREDRAW | CS_VREDRAW;
815         wc.lpfnWndProc = DefWindowProcA;
816         wc.cbClsExtra = 0;
817         wc.cbWndExtra = 0;
818         wc.hInstance = inst;
819         wc.hIcon = 0;
820         wc.hCursor = 0;
821         wc.hbrBackground = GetStockObject(BLACK_BRUSH);
822         wc.lpszMenuName = NULL;
823         wc.lpszClassName = DDRAW_WINDOW_CLASS_NAME;
824         if (!RegisterClassA(&wc))
825         {
826             ERR("Failed to register ddraw window class, last error %#x.\n", GetLastError());
827             return FALSE;
828         }
829 
830         /* On Windows one can force the refresh rate that DirectDraw uses by
831          * setting an override value in dxdiag.  This is documented in KB315614
832          * (main article), KB230002, and KB217348.  By comparing registry dumps
833          * before and after setting the override, we see that the override value
834          * is stored in HKLM\Software\Microsoft\DirectDraw\ForceRefreshRate as a
835          * DWORD that represents the refresh rate to force.  We use this
836          * registry entry to modify the behavior of SetDisplayMode so that Wine
837          * users can override the refresh rate in a Windows-compatible way.
838          *
839          * dxdiag will not accept a refresh rate lower than 40 or higher than
840          * 120 so this value should be within that range.  It is, of course,
841          * possible for a user to set the registry entry value directly so that
842          * assumption might not hold.
843          *
844          * There is no current mechanism for setting this value through the Wine
845          * GUI.  It would be most appropriate to set this value through a dxdiag
846          * clone, but it may be sufficient to use winecfg.
847          *
848          * TODO: Create a mechanism for setting this value through the Wine GUI.
849          */
850         if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectDraw", &hkey ) )
851         {
852             DWORD type, data, size;
853 
854             size = sizeof(data);
855             if (!RegQueryValueExA(hkey, "ForceRefreshRate", NULL, &type, (BYTE *)&data, &size) && type == REG_DWORD)
856             {
857                 TRACE("ForceRefreshRate set; overriding refresh rate to %d Hz\n", data);
858                 force_refresh_rate = data;
859             }
860             RegCloseKey( hkey );
861         }
862 
863         /* Prevent the ddraw module from being unloaded. When switching to
864          * exclusive mode, we replace the window proc of the ddraw window. If
865          * an application would unload ddraw from the WM_DESTROY handler for
866          * that window, it would return to unmapped memory and die. Apparently
867          * this is supposed to work on Windows. */
868 
869         /* ReactOS r61844: Comment out usage of GET_MODULE_HANDLE_EX_FLAG_PIN because it doesn't work */
870         if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS /*| GET_MODULE_HANDLE_EX_FLAG_PIN*/,
871                 (const WCHAR *)&ddraw_self, &ddraw_self))
872             ERR("Failed to get own module handle.\n");
873 
874         instance = inst;
875         DisableThreadLibraryCalls(inst);
876         break;
877     }
878 
879     case DLL_PROCESS_DETACH:
880         if (WARN_ON(ddraw))
881         {
882             struct ddraw *ddraw;
883 
884             LIST_FOR_EACH_ENTRY(ddraw, &global_ddraw_list, struct ddraw, ddraw_list_entry)
885             {
886                 struct ddraw_surface *surface;
887 
888                 WARN("DirectDraw object %p has reference counts {%u, %u, %u, %u, %u}.\n",
889                         ddraw, ddraw->ref7, ddraw->ref4, ddraw->ref3, ddraw->ref2, ddraw->ref1);
890 
891                 if (ddraw->d3ddevice)
892                     WARN("DirectDraw object %p has Direct3D device %p attached.\n", ddraw, ddraw->d3ddevice);
893 
894                 LIST_FOR_EACH_ENTRY(surface, &ddraw->surface_list, struct ddraw_surface, surface_list_entry)
895                 {
896                     WARN("Surface %p has reference counts {%u, %u, %u, %u, %u, %u}.\n",
897                             surface, surface->ref7, surface->ref4, surface->ref3,
898                             surface->ref2, surface->ref1, surface->gamma_count);
899                 }
900             }
901         }
902 
903         if (reserved) break;
904         UnregisterClassA(DDRAW_WINDOW_CLASS_NAME, inst);
905     }
906 
907     return TRUE;
908 }
909