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   1 /*
   2  *      ICreateDevEnum implementation for DEVENUM.dll
   3  *
   4  * Copyright (C) 2002 Robert Shearman
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * NOTES ON THIS FILE:
  21  * - Implements ICreateDevEnum interface which creates an IEnumMoniker
  22  *   implementation
  23  * - Also creates the special registry keys created at run-time
  24  */
  25
  26 #define NONAMELESSSTRUCT
  27 #define NONAMELESSUNION
  28
  29 #include "devenum_private.h"
  30
  31 #include "wine/debug.h"
  32 #include "mmddk.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(devenum);
  35
  36 extern ICOM_VTABLE(IEnumMoniker) IEnumMoniker_Vtbl;
  37
  38 extern HINSTANCE DEVENUM_hInstance;
  39
  40 const WCHAR wszInstanceKeyName[] ={'I','n','s','t','a','n','c','e',0};
  41
  42 static const WCHAR wszRegSeparator[] =   {'\\', 0 };
  43 static const WCHAR wszActiveMovieKey[] = {'S','o','f','t','w','a','r','e','\\',
  44                                    'M','i','c','r','o','s','o','f','t','\\',
  45                                    'A','c','t','i','v','e','M','o','v','i','e','\\',
  46                                    'd','e','v','e','n','u','m','\\',0};
  47
  48 static ULONG WINAPI DEVENUM_ICreateDevEnum_AddRef(ICreateDevEnum * iface);
  49 static HRESULT DEVENUM_CreateSpecialCategories();
  50
  51 /**********************************************************************
  52  * DEVENUM_ICreateDevEnum_QueryInterface (also IUnknown)
  53  */
  54 static HRESULT WINAPI DEVENUM_ICreateDevEnum_QueryInterface(
  55     ICreateDevEnum * iface,
  56     REFIID riid,
  57     LPVOID *ppvObj)
  58 {
  59     ICOM_THIS(CreateDevEnumImpl, iface);
  60     TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
  61
  62     if (This == NULL || ppvObj == NULL) return E_POINTER;
  63
  64     if (IsEqualGUID(riid, &IID_IUnknown) ||
  65         IsEqualGUID(riid, &IID_ICreateDevEnum))
  66     {
  67         *ppvObj = (LPVOID)iface;
  68         DEVENUM_ICreateDevEnum_AddRef(iface);
  69         return S_OK;
  70     }
  71
  72     FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
  73     return E_NOINTERFACE;
  74 }
  75
  76 /**********************************************************************
  77  * DEVENUM_ICreateDevEnum_AddRef (also IUnknown)
  78  */
  79 static ULONG WINAPI DEVENUM_ICreateDevEnum_AddRef(ICreateDevEnum * iface)
  80 {
  81     ICOM_THIS(CreateDevEnumImpl, iface);
  82     TRACE("\n");
  83
  84     if (This == NULL) return E_POINTER;
  85
  86     if (InterlockedIncrement(&This->ref) == 1) {
  87         InterlockedIncrement(&dll_ref);
  88     }
  89     return This->ref;
  90 }
  91
  92 /**********************************************************************
  93  * DEVENUM_ICreateDevEnum_Release (also IUnknown)
  94  */
  95 static ULONG WINAPI DEVENUM_ICreateDevEnum_Release(ICreateDevEnum * iface)
  96 {
  97     ICOM_THIS(CreateDevEnumImpl, iface);
  98     TRACE("\n");
  99
 100     if (This == NULL) return E_POINTER;
 101
 102     if (InterlockedDecrement(&This->ref) == 0) {
 103         InterlockedDecrement(&dll_ref);
 104     }
 105     return This->ref;
 106 }
 107
 108 /**********************************************************************
 109  * DEVENUM_ICreateDevEnum_CreateClassEnumerator
 110  */
 111 HRESULT WINAPI DEVENUM_ICreateDevEnum_CreateClassEnumerator(
 112     ICreateDevEnum * iface,
 113     REFCLSID clsidDeviceClass,
 114     IEnumMoniker **ppEnumMoniker,
 115     DWORD dwFlags)
 116 {
 117     WCHAR wszRegKey[MAX_PATH];
 118     EnumMonikerImpl * pEnumMoniker;
 119     HKEY hkey;
 120     HKEY hbasekey;
 121     ICOM_THIS(CreateDevEnumImpl, iface);
 122
 123     TRACE("(%p)->(%s, %p, %lx)\n\tDeviceClass:\t%s\n", This, debugstr_guid(clsidDeviceClass), ppEnumMoniker, dwFlags, debugstr_guid(clsidDeviceClass));
 124
 125     if (!ppEnumMoniker)
 126         return E_POINTER;
 127
 128     *ppEnumMoniker = NULL;
 129
 130     if (IsEqualGUID(clsidDeviceClass, &CLSID_AudioRendererCategory) ||
 131         IsEqualGUID(clsidDeviceClass, &CLSID_AudioInputDeviceCategory) ||
 132         IsEqualGUID(clsidDeviceClass, &CLSID_MidiRendererCategory))
 133     {
 134         hbasekey = HKEY_CURRENT_USER;
 135         strcpyW(wszRegKey, wszActiveMovieKey);
 136
 137         if (!StringFromGUID2(clsidDeviceClass, wszRegKey + strlenW(wszRegKey), MAX_PATH - strlenW(wszRegKey)))
 138             return E_OUTOFMEMORY;
 139     }
 140     else
 141     {
 142         hbasekey = HKEY_CLASSES_ROOT;
 143         strcpyW(wszRegKey, clsid_keyname);
 144         strcatW(wszRegKey, wszRegSeparator);
 145
 146         if (!StringFromGUID2(clsidDeviceClass, wszRegKey + CLSID_STR_LEN, MAX_PATH - CLSID_STR_LEN))
 147             return E_OUTOFMEMORY;
 148
 149         strcatW(wszRegKey, wszRegSeparator);
 150         strcatW(wszRegKey, wszInstanceKeyName);
 151     }
 152
 153     if (RegOpenKeyW(hbasekey, wszRegKey, &hkey) != ERROR_SUCCESS)
 154     {
 155         if (IsEqualGUID(clsidDeviceClass, &CLSID_AudioRendererCategory) ||
 156             IsEqualGUID(clsidDeviceClass, &CLSID_AudioInputDeviceCategory) ||
 157             IsEqualGUID(clsidDeviceClass, &CLSID_MidiRendererCategory))
 158         {
 159              HRESULT hr = DEVENUM_CreateSpecialCategories();
 160              if (FAILED(hr))
 161                  return hr;
 162              if (RegOpenKeyW(hbasekey, wszRegKey, &hkey) != ERROR_SUCCESS)
 163              {
 164                  ERR("Couldn't open registry key for special device: %s\n",
 165                      debugstr_guid(clsidDeviceClass));
 166                  return S_FALSE;
 167              }
 168         }
 169         else
 170         {
 171             FIXME("Category %s not found\n", debugstr_guid(clsidDeviceClass));
 172             return S_FALSE;
 173         }
 174     }
 175
 176     pEnumMoniker = (EnumMonikerImpl *)CoTaskMemAlloc(sizeof(EnumMonikerImpl));
 177     if (!pEnumMoniker)
 178         return E_OUTOFMEMORY;
 179
 180     pEnumMoniker->lpVtbl = &IEnumMoniker_Vtbl;
 181     pEnumMoniker->ref = 1;
 182     pEnumMoniker->index = 0;
 183     pEnumMoniker->hkey = hkey;
 184
 185     *ppEnumMoniker = (IEnumMoniker *)pEnumMoniker;
 186
 187     return S_OK;
 188 }
 189
 190 /**********************************************************************
 191  * ICreateDevEnum_Vtbl
 192  */
 193 static ICOM_VTABLE(ICreateDevEnum) ICreateDevEnum_Vtbl =
 194 {
 195     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 196     DEVENUM_ICreateDevEnum_QueryInterface,
 197     DEVENUM_ICreateDevEnum_AddRef,
 198     DEVENUM_ICreateDevEnum_Release,
 199     DEVENUM_ICreateDevEnum_CreateClassEnumerator,
 200 };
 201
 202 /**********************************************************************
 203  * static CreateDevEnum instance
 204  */
 205 CreateDevEnumImpl DEVENUM_CreateDevEnum = { &ICreateDevEnum_Vtbl, 0 };
 206
 207 /**********************************************************************
 208  * DEVENUM_CreateAMCategoryKey (INTERNAL)
 209  *
 210  * Creates a registry key for a category at HKEY_CURRENT_USER\Software\
 211  * Microsoft\ActiveMovie\devenum\{clsid}
 212  */
 213 static HRESULT DEVENUM_CreateAMCategoryKey(const CLSID * clsidCategory)
 214 {
 215     WCHAR wszRegKey[MAX_PATH];
 216     HRESULT res = S_OK;
 217     HKEY hkeyDummy = NULL;
 218
 219     strcpyW(wszRegKey, wszActiveMovieKey);
 220
 221     if (!StringFromGUID2(clsidCategory, wszRegKey + strlenW(wszRegKey), sizeof(wszRegKey)/sizeof(wszRegKey[0]) - strlenW(wszRegKey)))
 222         res = E_INVALIDARG;
 223
 224     if (SUCCEEDED(res))
 225         res = HRESULT_FROM_WIN32(
 226             RegCreateKeyW(HKEY_CURRENT_USER, wszRegKey, &hkeyDummy));
 227
 228     if (hkeyDummy)
 229         RegCloseKey(hkeyDummy);
 230
 231     if (FAILED(res))
 232         ERR("Failed to create key HKEY_CURRENT_USER\\%s\n", debugstr_w(wszRegKey));
 233
 234     return res;
 235 }
 236
 237 /**********************************************************************
 238  * DEVENUM_CreateSpecialCategories (INTERNAL)
 239  *
 240  * Creates the keys in the registry for the dynamic categories
 241  */
 242 static HRESULT DEVENUM_CreateSpecialCategories()
 243 {
 244     HRESULT res;
 245     WCHAR szDSoundNameFormat[MAX_PATH + 1];
 246     WCHAR szDSoundName[MAX_PATH + 1];
 247     DWORD iDefaultDevice = -1;
 248     UINT numDevs;
 249     IFilterMapper2 * pMapper = NULL;
 250     REGFILTER2 rf2;
 251     REGFILTERPINS2 rfp2;
 252
 253     rf2.dwVersion = 2;
 254     rf2.dwMerit = MERIT_PREFERRED;
 255     rf2.u.s1.cPins2 = 1;
 256     rf2.u.s1.rgPins2 = &rfp2;
 257     rfp2.dwFlags = REG_PINFLAG_B_RENDERER;
 258     rfp2.cInstances = 1;
 259     rfp2.nMediums = 0;
 260     rfp2.lpMedium = NULL;
 261     rfp2.clsPinCategory = &IID_NULL;
 262
 263     if (!LoadStringW(DEVENUM_hInstance, IDS_DEVENUM_DS, szDSoundNameFormat, sizeof(szDSoundNameFormat)/sizeof(szDSoundNameFormat[0])-1))
 264     {
 265         ERR("Couldn't get string resource (GetLastError() is %ld)\n", GetLastError());
 266         return HRESULT_FROM_WIN32(GetLastError());
 267     }
 268
 269     res = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC,
 270                            &IID_IFilterMapper2, (void **) &pMapper);
 271     /*
 272      * Fill in info for devices
 273      */
 274     if (SUCCEEDED(res))
 275     {
 276         UINT i;
 277         WAVEOUTCAPSW wocaps;
 278         WAVEINCAPSW wicaps;
 279         MIDIOUTCAPSW mocaps;
 280         REGPINTYPES * pTypes;
 281
 282         numDevs = waveOutGetNumDevs();
 283
 284         res = DEVENUM_CreateAMCategoryKey(&CLSID_AudioRendererCategory);
 285         if (FAILED(res)) /* can't register any devices in this category */
 286             numDevs = 0;
 287
 288         for (i = 0; i < numDevs; i++)
 289         {
 290             if (waveOutGetDevCapsW(i, &wocaps, sizeof(WAVEOUTCAPSW))
 291                 == MMSYSERR_NOERROR)
 292             {
 293                 IMoniker * pMoniker = NULL;
 294
 295                 rfp2.nMediaTypes = 1;
 296                 pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 297                 if (!pTypes)
 298                 {
 299                     IFilterMapper2_Release(pMapper);
 300                     return E_OUTOFMEMORY;
 301                 }
 302                 /* FIXME: Native devenum seems to register a lot more types for
 303                  * DSound than we do. Not sure what purpose they serve */
 304                 pTypes[0].clsMajorType = &MEDIATYPE_Audio;
 305                 pTypes[0].clsMinorType = &MEDIASUBTYPE_PCM;
 306
 307                 rfp2.lpMediaType = pTypes;
 308
 309                 res = IFilterMapper2_RegisterFilter(pMapper,
 310                                               &CLSID_AudioRender,
 311                                               wocaps.szPname,
 312                                               &pMoniker,
 313                                               &CLSID_AudioRendererCategory,
 314                                               wocaps.szPname,
 315                                               &rf2);
 316
 317                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 318
 319                 if (pMoniker)
 320                     IMoniker_Release(pMoniker);
 321
 322                 wsprintfW(szDSoundName, szDSoundNameFormat, wocaps.szPname);
 323                 res = IFilterMapper2_RegisterFilter(pMapper,
 324                                               &CLSID_DSoundRender,
 325                                               szDSoundName,
 326                                               &pMoniker,
 327                                               &CLSID_AudioRendererCategory,
 328                                               szDSoundName,
 329                                               &rf2);
 330
 331                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 332
 333                 if (pMoniker)
 334                     IMoniker_Release(pMoniker);
 335
 336                 if (i == iDefaultDevice)
 337                 {
 338                     FIXME("Default device\n");
 339                 }
 340
 341                 CoTaskMemFree(pTypes);
 342             }
 343         }
 344
 345         numDevs = waveInGetNumDevs();
 346
 347         res = DEVENUM_CreateAMCategoryKey(&CLSID_AudioInputDeviceCategory);
 348         if (FAILED(res)) /* can't register any devices in this category */
 349             numDevs = 0;
 350
 351         for (i = 0; i < numDevs; i++)
 352         {
 353             if (waveInGetDevCapsW(i, &wicaps, sizeof(WAVEINCAPSW))
 354                 == MMSYSERR_NOERROR)
 355             {
 356                 IMoniker * pMoniker = NULL;
 357
 358                 rfp2.nMediaTypes = 1;
 359                 pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 360                 if (!pTypes)
 361                 {
 362                     IFilterMapper2_Release(pMapper);
 363                     return E_OUTOFMEMORY;
 364                 }
 365
 366                 /* FIXME: Not sure if these are correct */
 367                 pTypes[0].clsMajorType = &MEDIATYPE_Audio;
 368                 pTypes[0].clsMinorType = &MEDIASUBTYPE_PCM;
 369
 370                 rfp2.lpMediaType = pTypes;
 371
 372                 res = IFilterMapper2_RegisterFilter(pMapper,
 373                                               &CLSID_AudioRecord,
 374                                               wicaps.szPname,
 375                                               &pMoniker,
 376                                               &CLSID_AudioInputDeviceCategory,
 377                                               wicaps.szPname,
 378                                               &rf2);
 379
 380                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 381
 382                 if (pMoniker)
 383                     IMoniker_Release(pMoniker);
 384
 385                 CoTaskMemFree(pTypes);
 386             }
 387         }
 388
 389         numDevs = midiOutGetNumDevs();
 390
 391         res = DEVENUM_CreateAMCategoryKey(&CLSID_MidiRendererCategory);
 392         if (FAILED(res)) /* can't register any devices in this category */
 393             numDevs = 0;
 394
 395         for (i = 0; i < numDevs; i++)
 396         {
 397             if (midiOutGetDevCapsW(i, &mocaps, sizeof(MIDIOUTCAPSW))
 398                 == MMSYSERR_NOERROR)
 399             {
 400                 IMoniker * pMoniker = NULL;
 401
 402                 rfp2.nMediaTypes = 1;
 403                 pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 404                 if (!pTypes)
 405                 {
 406                     IFilterMapper2_Release(pMapper);
 407                     return E_OUTOFMEMORY;
 408                 }
 409
 410                 /* FIXME: Not sure if these are correct */
 411                 pTypes[0].clsMajorType = &MEDIATYPE_Midi;
 412                 pTypes[0].clsMinorType = &MEDIASUBTYPE_None;
 413
 414                 rfp2.lpMediaType = pTypes;
 415
 416                 res = IFilterMapper2_RegisterFilter(pMapper,
 417                                               &CLSID_AVIMIDIRender,
 418                                               mocaps.szPname,
 419                                               &pMoniker,
 420                                               &CLSID_MidiRendererCategory,
 421                                               mocaps.szPname,
 422                                               &rf2);
 423
 424                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 425                 /* Native version sets MidiOutId */
 426
 427                 if (pMoniker)
 428                     IMoniker_Release(pMoniker);
 429
 430                 if (i == iDefaultDevice)
 431                 {
 432                     FIXME("Default device\n");
 433                 }
 434
 435                 CoTaskMemFree(pTypes);
 436             }
 437         }
 438     }
 439
 440     if (pMapper)
 441         IFilterMapper2_Release(pMapper);
 442     return res;
 443 }