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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 #include "vfw.h"
  31
  32 #include "wine/debug.h"
  33 #include "wine/unicode.h"
  34 #include "mmddk.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(devenum);
  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(void);
  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     TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
  60
  61     if (ppvObj == NULL) return E_POINTER;
  62
  63     if (IsEqualGUID(riid, &IID_IUnknown) ||
  64         IsEqualGUID(riid, &IID_ICreateDevEnum))
  65     {
  66         *ppvObj = (LPVOID)iface;
  67         DEVENUM_ICreateDevEnum_AddRef(iface);
  68         return S_OK;
  69     }
  70
  71     FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
  72     return E_NOINTERFACE;
  73 }
  74
  75 /**********************************************************************
  76  * DEVENUM_ICreateDevEnum_AddRef (also IUnknown)
  77  */
  78 static ULONG WINAPI DEVENUM_ICreateDevEnum_AddRef(ICreateDevEnum * iface)
  79 {
  80     TRACE("\n");
  81
  82     DEVENUM_LockModule();
  83
  84     return 2; /* non-heap based object */
  85 }
  86
  87 /**********************************************************************
  88  * DEVENUM_ICreateDevEnum_Release (also IUnknown)
  89  */
  90 static ULONG WINAPI DEVENUM_ICreateDevEnum_Release(ICreateDevEnum * iface)
  91 {
  92     TRACE("\n");
  93
  94     DEVENUM_UnlockModule();
  95
  96     return 1; /* non-heap based object */
  97 }
  98
  99 /**********************************************************************
 100  * DEVENUM_ICreateDevEnum_CreateClassEnumerator
 101  */
 102 HRESULT WINAPI DEVENUM_ICreateDevEnum_CreateClassEnumerator(
 103     ICreateDevEnum * iface,
 104     REFCLSID clsidDeviceClass,
 105     IEnumMoniker **ppEnumMoniker,
 106     DWORD dwFlags)
 107 {
 108     WCHAR wszRegKey[MAX_PATH];
 109     HKEY hkey;
 110     HKEY hbasekey;
 111     CreateDevEnumImpl *This = (CreateDevEnumImpl *)iface;
 112
 113     TRACE("(%p)->(%s, %p, %lx)\n\tDeviceClass:\t%s\n", This, debugstr_guid(clsidDeviceClass), ppEnumMoniker, dwFlags, debugstr_guid(clsidDeviceClass));
 114
 115     if (!ppEnumMoniker)
 116         return E_POINTER;
 117
 118     *ppEnumMoniker = NULL;
 119
 120     if (IsEqualGUID(clsidDeviceClass, &CLSID_AudioRendererCategory) ||
 121         IsEqualGUID(clsidDeviceClass, &CLSID_AudioInputDeviceCategory) ||
 122         IsEqualGUID(clsidDeviceClass, &CLSID_VideoInputDeviceCategory) ||
 123         IsEqualGUID(clsidDeviceClass, &CLSID_MidiRendererCategory))
 124     {
 125         hbasekey = HKEY_CURRENT_USER;
 126         strcpyW(wszRegKey, wszActiveMovieKey);
 127
 128         if (!StringFromGUID2(clsidDeviceClass, wszRegKey + strlenW(wszRegKey), MAX_PATH - strlenW(wszRegKey)))
 129             return E_OUTOFMEMORY;
 130     }
 131     else
 132     {
 133         hbasekey = HKEY_CLASSES_ROOT;
 134         strcpyW(wszRegKey, clsid_keyname);
 135         strcatW(wszRegKey, wszRegSeparator);
 136
 137         if (!StringFromGUID2(clsidDeviceClass, wszRegKey + CLSID_STR_LEN, MAX_PATH - CLSID_STR_LEN))
 138             return E_OUTOFMEMORY;
 139
 140         strcatW(wszRegKey, wszRegSeparator);
 141         strcatW(wszRegKey, wszInstanceKeyName);
 142     }
 143
 144     if (RegOpenKeyW(hbasekey, wszRegKey, &hkey) != ERROR_SUCCESS)
 145     {
 146         if (IsEqualGUID(clsidDeviceClass, &CLSID_AudioRendererCategory) ||
 147             IsEqualGUID(clsidDeviceClass, &CLSID_AudioInputDeviceCategory) ||
 148             IsEqualGUID(clsidDeviceClass, &CLSID_VideoInputDeviceCategory) ||
 149             IsEqualGUID(clsidDeviceClass, &CLSID_MidiRendererCategory))
 150         {
 151              HRESULT hr = DEVENUM_CreateSpecialCategories();
 152              if (FAILED(hr))
 153                  return hr;
 154              if (RegOpenKeyW(hbasekey, wszRegKey, &hkey) != ERROR_SUCCESS)
 155              {
 156                  ERR("Couldn't open registry key for special device: %s\n",
 157                      debugstr_guid(clsidDeviceClass));
 158                  return S_FALSE;
 159              }
 160         }
 161         else
 162         {
 163             FIXME("Category %s not found\n", debugstr_guid(clsidDeviceClass));
 164             return S_FALSE;
 165         }
 166     }
 167
 168     return DEVENUM_IEnumMoniker_Construct(hkey, ppEnumMoniker);
 169 }
 170
 171 /**********************************************************************
 172  * ICreateDevEnum_Vtbl
 173  */
 174 static const ICreateDevEnumVtbl ICreateDevEnum_Vtbl =
 175 {
 176     DEVENUM_ICreateDevEnum_QueryInterface,
 177     DEVENUM_ICreateDevEnum_AddRef,
 178     DEVENUM_ICreateDevEnum_Release,
 179     DEVENUM_ICreateDevEnum_CreateClassEnumerator,
 180 };
 181
 182 /**********************************************************************
 183  * static CreateDevEnum instance
 184  */
 185 CreateDevEnumImpl DEVENUM_CreateDevEnum = { &ICreateDevEnum_Vtbl };
 186
 187 /**********************************************************************
 188  * DEVENUM_CreateAMCategoryKey (INTERNAL)
 189  *
 190  * Creates a registry key for a category at HKEY_CURRENT_USER\Software\
 191  * Microsoft\ActiveMovie\devenum\{clsid}
 192  */
 193 static HRESULT DEVENUM_CreateAMCategoryKey(const CLSID * clsidCategory)
 194 {
 195     WCHAR wszRegKey[MAX_PATH];
 196     HRESULT res = S_OK;
 197     HKEY hkeyDummy = NULL;
 198
 199     strcpyW(wszRegKey, wszActiveMovieKey);
 200
 201     if (!StringFromGUID2(clsidCategory, wszRegKey + strlenW(wszRegKey), sizeof(wszRegKey)/sizeof(wszRegKey[0]) - strlenW(wszRegKey)))
 202         res = E_INVALIDARG;
 203
 204     if (SUCCEEDED(res))
 205     {
 206         LONG lRes = RegCreateKeyW(HKEY_CURRENT_USER, wszRegKey, &hkeyDummy);
 207         res = HRESULT_FROM_WIN32(lRes);
 208     }
 209
 210     if (hkeyDummy)
 211         RegCloseKey(hkeyDummy);
 212
 213     if (FAILED(res))
 214         ERR("Failed to create key HKEY_CURRENT_USER\\%s\n", debugstr_w(wszRegKey));
 215
 216     return res;
 217 }
 218
 219 /**********************************************************************
 220  * DEVENUM_CreateSpecialCategories (INTERNAL)
 221  *
 222  * Creates the keys in the registry for the dynamic categories
 223  */
 224 static HRESULT DEVENUM_CreateSpecialCategories()
 225 {
 226     HRESULT res;
 227     WCHAR szDSoundNameFormat[MAX_PATH + 1];
 228     WCHAR szDSoundName[MAX_PATH + 1];
 229     DWORD iDefaultDevice = -1;
 230     UINT numDevs;
 231     IFilterMapper2 * pMapper = NULL;
 232     REGFILTER2 rf2;
 233     REGFILTERPINS2 rfp2;
 234
 235     rf2.dwVersion = 2;
 236     rf2.dwMerit = MERIT_PREFERRED;
 237     rf2.u.s1.cPins2 = 1;
 238     rf2.u.s1.rgPins2 = &rfp2;
 239     rfp2.cInstances = 1;
 240     rfp2.nMediums = 0;
 241     rfp2.lpMedium = NULL;
 242     rfp2.clsPinCategory = &IID_NULL;
 243
 244     if (!LoadStringW(DEVENUM_hInstance, IDS_DEVENUM_DS, szDSoundNameFormat, sizeof(szDSoundNameFormat)/sizeof(szDSoundNameFormat[0])-1))
 245     {
 246         ERR("Couldn't get string resource (GetLastError() is %ld)\n", GetLastError());
 247         return HRESULT_FROM_WIN32(GetLastError());
 248     }
 249
 250     res = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC,
 251                            &IID_IFilterMapper2, (void **) &pMapper);
 252     /*
 253      * Fill in info for devices
 254      */
 255     if (SUCCEEDED(res))
 256     {
 257         UINT i;
 258         WAVEOUTCAPSW wocaps;
 259         WAVEINCAPSW wicaps;
 260         MIDIOUTCAPSW mocaps;
 261         REGPINTYPES * pTypes;
 262
 263         numDevs = waveOutGetNumDevs();
 264
 265         res = DEVENUM_CreateAMCategoryKey(&CLSID_AudioRendererCategory);
 266         if (FAILED(res)) /* can't register any devices in this category */
 267             numDevs = 0;
 268
 269         rfp2.dwFlags = REG_PINFLAG_B_RENDERER;
 270         for (i = 0; i < numDevs; i++)
 271         {
 272             if (waveOutGetDevCapsW(i, &wocaps, sizeof(WAVEOUTCAPSW))
 273                 == MMSYSERR_NOERROR)
 274             {
 275                 IMoniker * pMoniker = NULL;
 276
 277                 rfp2.nMediaTypes = 1;
 278                 pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 279                 if (!pTypes)
 280                 {
 281                     IFilterMapper2_Release(pMapper);
 282                     return E_OUTOFMEMORY;
 283                 }
 284                 /* FIXME: Native devenum seems to register a lot more types for
 285                  * DSound than we do. Not sure what purpose they serve */
 286                 pTypes[0].clsMajorType = &MEDIATYPE_Audio;
 287                 pTypes[0].clsMinorType = &MEDIASUBTYPE_PCM;
 288
 289                 rfp2.lpMediaType = pTypes;
 290
 291                 res = IFilterMapper2_RegisterFilter(pMapper,
 292                                               &CLSID_AudioRender,
 293                                               wocaps.szPname,
 294                                               &pMoniker,
 295                                               &CLSID_AudioRendererCategory,
 296                                               wocaps.szPname,
 297                                               &rf2);
 298
 299                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 300
 301                 if (pMoniker)
 302                     IMoniker_Release(pMoniker);
 303
 304                 wsprintfW(szDSoundName, szDSoundNameFormat, wocaps.szPname);
 305                 res = IFilterMapper2_RegisterFilter(pMapper,
 306                                               &CLSID_DSoundRender,
 307                                               szDSoundName,
 308                                               &pMoniker,
 309                                               &CLSID_AudioRendererCategory,
 310                                               szDSoundName,
 311                                               &rf2);
 312
 313                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 314
 315                 if (pMoniker)
 316                     IMoniker_Release(pMoniker);
 317
 318                 if (i == iDefaultDevice)
 319                 {
 320                     FIXME("Default device\n");
 321                 }
 322
 323                 CoTaskMemFree(pTypes);
 324             }
 325         }
 326
 327         numDevs = waveInGetNumDevs();
 328
 329         res = DEVENUM_CreateAMCategoryKey(&CLSID_AudioInputDeviceCategory);
 330         if (FAILED(res)) /* can't register any devices in this category */
 331             numDevs = 0;
 332
 333         rfp2.dwFlags = REG_PINFLAG_B_OUTPUT;
 334         for (i = 0; i < numDevs; i++)
 335         {
 336             if (waveInGetDevCapsW(i, &wicaps, sizeof(WAVEINCAPSW))
 337                 == MMSYSERR_NOERROR)
 338             {
 339                 IMoniker * pMoniker = NULL;
 340
 341                 rfp2.nMediaTypes = 1;
 342                 pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 343                 if (!pTypes)
 344                 {
 345                     IFilterMapper2_Release(pMapper);
 346                     return E_OUTOFMEMORY;
 347                 }
 348
 349                 /* FIXME: Not sure if these are correct */
 350                 pTypes[0].clsMajorType = &MEDIATYPE_Audio;
 351                 pTypes[0].clsMinorType = &MEDIASUBTYPE_PCM;
 352
 353                 rfp2.lpMediaType = pTypes;
 354
 355                 res = IFilterMapper2_RegisterFilter(pMapper,
 356                                               &CLSID_AudioRecord,
 357                                               wicaps.szPname,
 358                                               &pMoniker,
 359                                               &CLSID_AudioInputDeviceCategory,
 360                                               wicaps.szPname,
 361                                               &rf2);
 362
 363                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 364
 365                 if (pMoniker)
 366                     IMoniker_Release(pMoniker);
 367
 368                 CoTaskMemFree(pTypes);
 369             }
 370         }
 371
 372         numDevs = midiOutGetNumDevs();
 373
 374         res = DEVENUM_CreateAMCategoryKey(&CLSID_MidiRendererCategory);
 375         if (FAILED(res)) /* can't register any devices in this category */
 376             numDevs = 0;
 377
 378         rfp2.dwFlags = REG_PINFLAG_B_RENDERER;
 379         for (i = 0; i < numDevs; i++)
 380         {
 381             if (midiOutGetDevCapsW(i, &mocaps, sizeof(MIDIOUTCAPSW))
 382                 == MMSYSERR_NOERROR)
 383             {
 384                 IMoniker * pMoniker = NULL;
 385
 386                 rfp2.nMediaTypes = 1;
 387                 pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 388                 if (!pTypes)
 389                 {
 390                     IFilterMapper2_Release(pMapper);
 391                     return E_OUTOFMEMORY;
 392                 }
 393
 394                 /* FIXME: Not sure if these are correct */
 395                 pTypes[0].clsMajorType = &MEDIATYPE_Midi;
 396                 pTypes[0].clsMinorType = &MEDIASUBTYPE_None;
 397
 398                 rfp2.lpMediaType = pTypes;
 399
 400                 res = IFilterMapper2_RegisterFilter(pMapper,
 401                                               &CLSID_AVIMIDIRender,
 402                                               mocaps.szPname,
 403                                               &pMoniker,
 404                                               &CLSID_MidiRendererCategory,
 405                                               mocaps.szPname,
 406                                               &rf2);
 407
 408                 /* FIXME: do additional stuff with IMoniker here, depending on what RegisterFilter does */
 409                 /* Native version sets MidiOutId */
 410
 411                 if (pMoniker)
 412                     IMoniker_Release(pMoniker);
 413
 414                 if (i == iDefaultDevice)
 415                 {
 416                     FIXME("Default device\n");
 417                 }
 418
 419                 CoTaskMemFree(pTypes);
 420             }
 421         }
 422         res = DEVENUM_CreateAMCategoryKey(&CLSID_VideoInputDeviceCategory);
 423         if (SUCCEEDED(res))
 424             for (i = 0; i < 10; i++)
 425             {
 426                 WCHAR szDeviceName[32], szDeviceVersion[32], szDevicePath[10];
 427
 428                 if (capGetDriverDescriptionW ((WORD) i,
 429                                               szDeviceName, sizeof(szDeviceName)/sizeof(WCHAR),
 430                                               szDeviceVersion, sizeof(szDeviceVersion)/sizeof(WCHAR)))
 431                 {
 432                     IMoniker * pMoniker = NULL;
 433                     IPropertyBag * pPropBag = NULL;
 434                     WCHAR dprintf[] = { 'v','i','d','e','o','%','d',0 };
 435                     snprintfW(szDevicePath, sizeof(szDevicePath)/sizeof(WCHAR), dprintf, i);
 436                     /* The above code prevents 1 device with a different ID overwriting another */
 437
 438                     rfp2.nMediaTypes = 1;
 439                     pTypes = CoTaskMemAlloc(rfp2.nMediaTypes * sizeof(REGPINTYPES));
 440                     if (!pTypes) {
 441                         IFilterMapper2_Release(pMapper);
 442                         return E_OUTOFMEMORY;
 443                     }
 444
 445                     pTypes[0].clsMajorType = &MEDIATYPE_Video;
 446                     pTypes[0].clsMinorType = &MEDIASUBTYPE_None;
 447
 448                     rfp2.lpMediaType = pTypes;
 449
 450                     res = IFilterMapper2_RegisterFilter(pMapper,
 451                                                         &CLSID_VfwCapture,
 452                                                         szDeviceName,
 453                                                         &pMoniker,
 454                                                         &CLSID_VideoInputDeviceCategory,
 455                                                         szDevicePath,
 456                                                         &rf2);
 457
 458                     if (pMoniker) {
 459                        OLECHAR wszVfwIndex[] = { 'V','F','W','I','n','d','e','x',0 };
 460                        VARIANT var;
 461                        V_VT(&var) = VT_I4;
 462                        V_UNION(&var, ulVal) = (ULONG)i;
 463                        res = IMoniker_BindToStorage(pMoniker, NULL, NULL, &IID_IPropertyBag, (LPVOID)&pPropBag);
 464                        if (SUCCEEDED(res))
 465                           res = IPropertyBag_Write(pPropBag, wszVfwIndex, &var);
 466                        IMoniker_Release(pMoniker);
 467                     }
 468
 469                     if (i == iDefaultDevice) FIXME("Default device\n");
 470                     CoTaskMemFree(pTypes);
 471                 }
 472             }
 473     }
 474
 475     if (pMapper)
 476         IFilterMapper2_Release(pMapper);
 477     return res;
 478 }