dlls/dmusic/port.c

   1 /*
   2  * IDirectMusicPort Implementation
   3  *
   4  * Copyright (C) 2003-2004 Rok Mandeljc
   5  *
   6  * This program 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 program 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 program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "dmusic_private.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
  24
  25 static inline IDirectMusicPortImpl *impl_from_IDirectMusicPort(IDirectMusicPort *iface)
  26 {
  27     return CONTAINING_RECORD(iface, IDirectMusicPortImpl, IDirectMusicPort_iface);
  28 }
  29
  30 static inline IDirectMusicPortImpl *impl_from_IDirectMusicPortDownload(IDirectMusicPortDownload *iface)
  31 {
  32     return CONTAINING_RECORD(iface, IDirectMusicPortImpl, IDirectMusicPortDownload_iface);
  33 }
  34
  35 static inline IDirectMusicPortImpl *impl_from_IDirectMusicThru(IDirectMusicThru *iface)
  36 {
  37     return CONTAINING_RECORD(iface, IDirectMusicPortImpl, IDirectMusicThru_iface);
  38 }
  39
  40 /* IDirectMusicPortImpl IUnknown part: */
  41 static HRESULT WINAPI IDirectMusicPortImpl_QueryInterface(LPDIRECTMUSICPORT iface, REFIID riid, LPVOID *ppobj)
  42 {
  43         IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
  44
  45         TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
  46
  47         if (IsEqualIID (riid, &IID_IUnknown) ||
  48             IsEqualGUID(riid, &IID_IDirectMusicPort) ||
  49             IsEqualGUID(riid, &IID_IDirectMusicPort8)) {
  50                 *ppobj = &This->IDirectMusicPort_iface;
  51                 IDirectMusicPort_AddRef((LPDIRECTMUSICPORT)*ppobj);
  52                 return S_OK;
  53         } else if (IsEqualGUID(riid, &IID_IDirectMusicPortDownload) ||
  54                    IsEqualGUID(riid, &IID_IDirectMusicPortDownload8)) {
  55                 *ppobj = &This->IDirectMusicPortDownload_iface;
  56                 IDirectMusicPortDownload_AddRef((LPDIRECTMUSICPORTDOWNLOAD)*ppobj);
  57                 return S_OK;
  58         } else if (IsEqualGUID(riid, &IID_IDirectMusicThru) ||
  59                    IsEqualGUID(riid, &IID_IDirectMusicThru8)) {
  60                 *ppobj = &This->IDirectMusicThru_iface;
  61                 IDirectMusicThru_AddRef((LPDIRECTMUSICTHRU)*ppobj);
  62                 return S_OK;
  63         }
  64         WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
  65         return E_NOINTERFACE;
  66 }
  67
  68 static ULONG WINAPI IDirectMusicPortImpl_AddRef(LPDIRECTMUSICPORT iface)
  69 {
  70         IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
  71         ULONG refCount = InterlockedIncrement(&This->ref);
  72
  73         TRACE("(%p)->(ref before=%u)\n", This, refCount - 1);
  74
  75         DMUSIC_LockModule();
  76
  77         return refCount;
  78 }
  79
  80 static ULONG WINAPI IDirectMusicPortImpl_Release(LPDIRECTMUSICPORT iface)
  81 {
  82         IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
  83         ULONG refCount = InterlockedDecrement(&This->ref);
  84
  85         TRACE("(%p)->(ref before=%u)\n", This, refCount + 1);
  86
  87         if (!refCount) {
  88                 HeapFree(GetProcessHeap(), 0, This);
  89         }
  90
  91         DMUSIC_UnlockModule();
  92
  93         return refCount;
  94 }
  95
  96 /* IDirectMusicPortImpl IDirectMusicPort part: */
  97 static HRESULT WINAPI IDirectMusicPortImpl_PlayBuffer(LPDIRECTMUSICPORT iface, LPDIRECTMUSICBUFFER buffer)
  98 {
  99     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 100
 101     FIXME("(%p/%p)->(%p): stub\n", iface, This, buffer);
 102
 103     return S_OK;
 104 }
 105
 106 static HRESULT WINAPI IDirectMusicPortImpl_SetReadNotificationHandle(LPDIRECTMUSICPORT iface, HANDLE event)
 107 {
 108     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 109
 110     FIXME("(%p/%p)->(%p): stub\n", iface, This, event);
 111
 112     return S_OK;
 113 }
 114
 115 static HRESULT WINAPI IDirectMusicPortImpl_Read(LPDIRECTMUSICPORT iface, LPDIRECTMUSICBUFFER buffer)
 116 {
 117     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 118
 119     FIXME("(%p/%p)->(%p): stub\n", iface, This, buffer);
 120
 121     return S_OK;
 122 }
 123
 124 static HRESULT WINAPI IDirectMusicPortImpl_DownloadInstrument(LPDIRECTMUSICPORT iface, IDirectMusicInstrument* pInstrument, IDirectMusicDownloadedInstrument** ppDownloadedInstrument, DMUS_NOTERANGE* pNoteRanges, DWORD dwNumNoteRanges)
 125 {
 126         IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 127
 128         FIXME("(%p, %p, %p, %p, %d): stub\n", This, pInstrument, ppDownloadedInstrument, pNoteRanges, dwNumNoteRanges);
 129
 130         if (!pInstrument || !ppDownloadedInstrument || (dwNumNoteRanges && !pNoteRanges))
 131                 return E_POINTER;
 132
 133         return DMUSIC_CreateDirectMusicDownloadedInstrumentImpl(&IID_IDirectMusicDownloadedInstrument, (LPVOID*)ppDownloadedInstrument, NULL);
 134 }
 135
 136 static HRESULT WINAPI IDirectMusicPortImpl_UnloadInstrument(LPDIRECTMUSICPORT iface, IDirectMusicDownloadedInstrument *downloaded_instrument)
 137 {
 138     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 139
 140     FIXME("(%p/%p)->(%p): stub\n", iface, This, downloaded_instrument);
 141
 142     return S_OK;
 143 }
 144
 145 static HRESULT WINAPI IDirectMusicPortImpl_GetLatencyClock(LPDIRECTMUSICPORT iface, IReferenceClock** clock)
 146 {
 147     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 148
 149     TRACE("(%p/%p)->(%p)\n", iface, This, clock);
 150
 151     *clock = This->pLatencyClock;
 152     IReferenceClock_AddRef(*clock);
 153
 154     return S_OK;
 155 }
 156
 157 static HRESULT WINAPI IDirectMusicPortImpl_GetRunningStats(LPDIRECTMUSICPORT iface, LPDMUS_SYNTHSTATS stats)
 158 {
 159     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 160
 161     FIXME("(%p/%p)->(%p): stub\n", iface, This, stats);
 162
 163     return S_OK;
 164 }
 165
 166 static HRESULT WINAPI IDirectMusicPortImpl_Compact(LPDIRECTMUSICPORT iface)
 167 {
 168     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 169
 170     FIXME("(%p/%p)->(): stub\n", iface, This);
 171
 172     return S_OK;
 173 }
 174
 175 static HRESULT WINAPI IDirectMusicPortImpl_GetCaps(LPDIRECTMUSICPORT iface, LPDMUS_PORTCAPS port_caps)
 176 {
 177     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 178
 179     TRACE("(%p/%p)->(%p)\n", iface, This, port_caps);
 180
 181     *port_caps = This->caps;
 182
 183     return S_OK;
 184 }
 185
 186 static HRESULT WINAPI IDirectMusicPortImpl_DeviceIoControl(LPDIRECTMUSICPORT iface, DWORD io_control_code, LPVOID in_buffer, DWORD in_buffer_size,
 187                                                            LPVOID out_buffer, DWORD out_buffer_size, LPDWORD bytes_returned, LPOVERLAPPED overlapped)
 188 {
 189     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 190
 191     FIXME("(%p/%p)->(%d, %p, %d, %p, %d, %p, %p): stub\n", iface, This, io_control_code, in_buffer, in_buffer_size, out_buffer, out_buffer_size, bytes_returned, overlapped);
 192
 193     return S_OK;
 194 }
 195
 196 static HRESULT WINAPI IDirectMusicPortImpl_SetNumChannelGroups(LPDIRECTMUSICPORT iface, DWORD channel_groups)
 197 {
 198     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 199
 200     FIXME("(%p/%p)->(%d): semi-stub\n", iface, This, channel_groups);
 201
 202     This->nrofgroups = channel_groups;
 203
 204     return S_OK;
 205 }
 206
 207 static HRESULT WINAPI IDirectMusicPortImpl_GetNumChannelGroups(LPDIRECTMUSICPORT iface, LPDWORD channel_groups)
 208 {
 209     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 210
 211     TRACE("(%p/%p)->(%p)\n", iface, This, channel_groups);
 212
 213     *channel_groups = This->nrofgroups;
 214
 215     return S_OK;
 216 }
 217
 218 static HRESULT WINAPI IDirectMusicPortImpl_Activate(LPDIRECTMUSICPORT iface, BOOL active)
 219 {
 220     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 221
 222     TRACE("(%p/%p)->(%d)\n", iface, This, active);
 223
 224     This->fActive = active;
 225
 226     return S_OK;
 227 }
 228
 229 static HRESULT WINAPI IDirectMusicPortImpl_SetChannelPriority(LPDIRECTMUSICPORT iface, DWORD channel_group, DWORD channel, DWORD priority)
 230 {
 231     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 232
 233     FIXME("(%p/%p)->(%d, %d, %d): semi-stub\n", iface, This, channel_group, channel, priority);
 234
 235     if (channel > 16)
 236     {
 237         WARN("isn't there supposed to be 16 channels (no. %d requested)?! (faking as it is ok)\n", channel);
 238         /*return E_INVALIDARG;*/
 239     }
 240
 241     return S_OK;
 242 }
 243
 244 static HRESULT WINAPI IDirectMusicPortImpl_GetChannelPriority(LPDIRECTMUSICPORT iface, DWORD channel_group, DWORD channel, LPDWORD priority)
 245 {
 246     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 247
 248     TRACE("(%p/%p)->(%u, %u, %p)\n", iface, This, channel_group, channel, priority);
 249
 250     *priority = This->group[channel_group - 1].channel[channel].priority;
 251
 252     return S_OK;
 253 }
 254
 255 static HRESULT WINAPI IDirectMusicPortImpl_SetDirectSound(LPDIRECTMUSICPORT iface, LPDIRECTSOUND direct_sound, LPDIRECTSOUNDBUFFER direct_sound_buffer)
 256 {
 257     IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 258
 259     FIXME("(%p/%p)->(%p, %p): stub\n", iface, This, direct_sound, direct_sound_buffer);
 260
 261     return S_OK;
 262 }
 263
 264 static HRESULT WINAPI IDirectMusicPortImpl_GetFormat(LPDIRECTMUSICPORT iface, LPWAVEFORMATEX pWaveFormatEx, LPDWORD pdwWaveFormatExSize, LPDWORD pdwBufferSize)
 265 {
 266         IDirectMusicPortImpl *This = impl_from_IDirectMusicPort(iface);
 267         WAVEFORMATEX format;
 268         FIXME("(%p, %p, %p, %p): stub\n", This, pWaveFormatEx, pdwWaveFormatExSize, pdwBufferSize);
 269
 270         if (pWaveFormatEx == NULL)
 271         {
 272                 if (pdwWaveFormatExSize)
 273                         *pdwWaveFormatExSize = sizeof(format);
 274                 else
 275                         return E_POINTER;
 276         }
 277         else
 278         {
 279                 if (pdwWaveFormatExSize == NULL)
 280                         return E_POINTER;
 281
 282                 /* Just fill this in with something that will not crash Direct Sound for now. */
 283                 /* It won't be used anyway until Performances are completed */
 284                 format.wFormatTag = WAVE_FORMAT_PCM;
 285                 format.nChannels = 2; /* This->params.dwAudioChannels; */
 286                 format.nSamplesPerSec = 44100; /* This->params.dwSampleRate; */
 287                 format.wBitsPerSample = 16;     /* FIXME: check this */
 288                 format.nBlockAlign = (format.wBitsPerSample * format.nChannels) / 8;
 289                 format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign;
 290                 format.cbSize = 0;
 291
 292                 if (*pdwWaveFormatExSize >= sizeof(format))
 293                 {
 294                         CopyMemory(pWaveFormatEx, &format, min(sizeof(format), *pdwWaveFormatExSize));
 295                         *pdwWaveFormatExSize = sizeof(format);  /* FIXME check if this is set */
 296                 }
 297                 else
 298                         return E_POINTER;       /* FIXME find right error */
 299         }
 300
 301         if (pdwBufferSize)
 302                 *pdwBufferSize = 44100 * 2 * 2;
 303         else
 304                 return E_POINTER;
 305
 306         return S_OK;
 307 }
 308
 309 static const IDirectMusicPortVtbl DirectMusicPort_Vtbl = {
 310         IDirectMusicPortImpl_QueryInterface,
 311         IDirectMusicPortImpl_AddRef,
 312         IDirectMusicPortImpl_Release,
 313         IDirectMusicPortImpl_PlayBuffer,
 314         IDirectMusicPortImpl_SetReadNotificationHandle,
 315         IDirectMusicPortImpl_Read,
 316         IDirectMusicPortImpl_DownloadInstrument,
 317         IDirectMusicPortImpl_UnloadInstrument,
 318         IDirectMusicPortImpl_GetLatencyClock,
 319         IDirectMusicPortImpl_GetRunningStats,
 320         IDirectMusicPortImpl_Compact,
 321         IDirectMusicPortImpl_GetCaps,
 322         IDirectMusicPortImpl_DeviceIoControl,
 323         IDirectMusicPortImpl_SetNumChannelGroups,
 324         IDirectMusicPortImpl_GetNumChannelGroups,
 325         IDirectMusicPortImpl_Activate,
 326         IDirectMusicPortImpl_SetChannelPriority,
 327         IDirectMusicPortImpl_GetChannelPriority,
 328         IDirectMusicPortImpl_SetDirectSound,
 329         IDirectMusicPortImpl_GetFormat
 330 };
 331
 332 /* IDirectMusicPortDownload IUnknown parts follow: */
 333 static HRESULT WINAPI IDirectMusicPortDownloadImpl_QueryInterface(LPDIRECTMUSICPORTDOWNLOAD iface, REFIID riid, LPVOID *ret_iface)
 334 {
 335     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 336
 337     TRACE("(%p/%p)->(%s, %p)\n", iface, This, debugstr_dmguid(riid), ret_iface);
 338
 339     return IDirectMusicPort_QueryInterface(&This->IDirectMusicPort_iface, riid, ret_iface);
 340 }
 341
 342 static ULONG WINAPI IDirectMusicPortDownloadImpl_AddRef (LPDIRECTMUSICPORTDOWNLOAD iface)
 343 {
 344     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 345
 346     TRACE("(%p/%p)->()\n", iface, This);
 347
 348     return IDirectMusicPort_AddRef(&This->IDirectMusicPort_iface);
 349 }
 350
 351 static ULONG WINAPI IDirectMusicPortDownloadImpl_Release(LPDIRECTMUSICPORTDOWNLOAD iface)
 352 {
 353     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 354
 355     TRACE("(%p/%p)->()\n", iface, This);
 356
 357     return IDirectMusicPort_Release(&This->IDirectMusicPort_iface);
 358 }
 359
 360 /* IDirectMusicPortDownload Interface follow: */
 361 static HRESULT WINAPI IDirectMusicPortDownloadImpl_GetBuffer(LPDIRECTMUSICPORTDOWNLOAD iface, DWORD DLId, IDirectMusicDownload** IDMDownload)
 362 {
 363     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 364
 365     FIXME("(%p/%p)->(%u, %p): stub\n", iface, This, DLId, IDMDownload);
 366
 367     if (!IDMDownload)
 368         return E_POINTER;
 369
 370     return DMUSIC_CreateDirectMusicDownloadImpl(&IID_IDirectMusicDownload, (LPVOID*)IDMDownload, NULL);
 371 }
 372
 373 static HRESULT WINAPI IDirectMusicPortDownloadImpl_AllocateBuffer(LPDIRECTMUSICPORTDOWNLOAD iface, DWORD size, IDirectMusicDownload** IDMDownload)
 374 {
 375     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 376
 377     FIXME("(%p/%p)->(%u, %p): stub\n", iface, This, size, IDMDownload);
 378
 379     return S_OK;
 380 }
 381
 382 static HRESULT WINAPI IDirectMusicPortDownloadImpl_GetDLId(LPDIRECTMUSICPORTDOWNLOAD iface, DWORD* start_DLId, DWORD count)
 383 {
 384     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 385
 386     FIXME("(%p/%p)->(%p, %u): stub\n", iface, This, start_DLId, count);
 387
 388     return S_OK;
 389 }
 390
 391 static HRESULT WINAPI IDirectMusicPortDownloadImpl_GetAppend (LPDIRECTMUSICPORTDOWNLOAD iface, DWORD* append)
 392 {
 393     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 394
 395     FIXME("(%p/%p)->(%p): stub\n", iface, This, append);
 396
 397     return S_OK;
 398 }
 399
 400 static HRESULT WINAPI IDirectMusicPortDownloadImpl_Download(LPDIRECTMUSICPORTDOWNLOAD iface, IDirectMusicDownload* IDMDownload)
 401 {
 402     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 403
 404     FIXME("(%p/%p)->(%p): stub\n", iface, This, IDMDownload);
 405
 406     return S_OK;
 407 }
 408
 409 static HRESULT WINAPI IDirectMusicPortDownloadImpl_Unload(LPDIRECTMUSICPORTDOWNLOAD iface, IDirectMusicDownload* IDMDownload)
 410 {
 411     IDirectMusicPortImpl *This = impl_from_IDirectMusicPortDownload(iface);
 412
 413     FIXME("(%p/%p)->(%p): stub\n", iface, This, IDMDownload);
 414
 415     return S_OK;
 416 }
 417
 418 static const IDirectMusicPortDownloadVtbl DirectMusicPortDownload_Vtbl = {
 419         IDirectMusicPortDownloadImpl_QueryInterface,
 420         IDirectMusicPortDownloadImpl_AddRef,
 421         IDirectMusicPortDownloadImpl_Release,
 422         IDirectMusicPortDownloadImpl_GetBuffer,
 423         IDirectMusicPortDownloadImpl_AllocateBuffer,
 424         IDirectMusicPortDownloadImpl_GetDLId,
 425         IDirectMusicPortDownloadImpl_GetAppend,
 426         IDirectMusicPortDownloadImpl_Download,
 427         IDirectMusicPortDownloadImpl_Unload
 428 };
 429
 430 /* IDirectMusicThru IUnknown parts follow: */
 431 static HRESULT WINAPI IDirectMusicThruImpl_QueryInterface(LPDIRECTMUSICTHRU iface, REFIID riid, LPVOID *ret_iface)
 432 {
 433     IDirectMusicPortImpl *This = impl_from_IDirectMusicThru(iface);
 434
 435     TRACE("(%p/%p)->(%s, %p)\n", iface, This, debugstr_dmguid(riid), ret_iface);
 436
 437     return IDirectMusicPort_QueryInterface(&This->IDirectMusicPort_iface, riid, ret_iface);
 438 }
 439
 440 static ULONG WINAPI IDirectMusicThruImpl_AddRef(LPDIRECTMUSICTHRU iface)
 441 {
 442     IDirectMusicPortImpl *This = impl_from_IDirectMusicThru(iface);
 443
 444     TRACE("(%p/%p)->()\n", iface, This);
 445
 446     return IDirectMusicPort_AddRef(&This->IDirectMusicPort_iface);
 447 }
 448
 449 static ULONG WINAPI IDirectMusicThruImpl_Release(LPDIRECTMUSICTHRU iface)
 450 {
 451     IDirectMusicPortImpl *This = impl_from_IDirectMusicThru(iface);
 452
 453     TRACE("(%p/%p)->()\n", iface, This);
 454
 455     return IDirectMusicPort_Release(&This->IDirectMusicPort_iface);
 456 }
 457
 458 /* IDirectMusicThru Interface follow: */
 459 static HRESULT WINAPI IDirectMusicThruImpl_ThruChannel(LPDIRECTMUSICTHRU iface, DWORD source_channel_group, DWORD source_channel, DWORD destination_channel_group,
 460                                                        DWORD destination_channel, LPDIRECTMUSICPORT destination_port)
 461 {
 462     IDirectMusicPortImpl *This = impl_from_IDirectMusicThru(iface);
 463
 464     FIXME("(%p/%p)->(%d, %d, %d, %d, %p): stub\n", iface, This, source_channel_group, source_channel, destination_channel_group, destination_channel, destination_port);
 465
 466     return S_OK;
 467 }
 468
 469 static const IDirectMusicThruVtbl DirectMusicThru_Vtbl = {
 470         IDirectMusicThruImpl_QueryInterface,
 471         IDirectMusicThruImpl_AddRef,
 472         IDirectMusicThruImpl_Release,
 473         IDirectMusicThruImpl_ThruChannel
 474 };
 475
 476 HRESULT DMUSIC_CreateDirectMusicPortImpl (LPCGUID lpcGUID, LPVOID *ppobj, LPUNKNOWN pUnkOuter, LPDMUS_PORTPARAMS pPortParams, LPDMUS_PORTCAPS pPortCaps) {
 477         IDirectMusicPortImpl *obj;
 478         HRESULT hr = E_FAIL;
 479         UINT j;
 480
 481         TRACE("(%p,%p,%p)\n", lpcGUID, ppobj, pUnkOuter);
 482
 483         obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicPortImpl));
 484         if (NULL == obj) {
 485                 *ppobj = NULL;
 486                 return E_OUTOFMEMORY;
 487         }
 488         obj->IDirectMusicPort_iface.lpVtbl = &DirectMusicPort_Vtbl;
 489         obj->IDirectMusicPortDownload_iface.lpVtbl = &DirectMusicPortDownload_Vtbl;
 490         obj->IDirectMusicThru_iface.lpVtbl = &DirectMusicThru_Vtbl;
 491         obj->ref = 0;  /* will be inited by QueryInterface */
 492         obj->fActive = FALSE;
 493         obj->params = *pPortParams;
 494         obj->caps = *pPortCaps;
 495         obj->pDirectSound = NULL;
 496         obj->pLatencyClock = NULL;
 497         hr = DMUSIC_CreateReferenceClockImpl(&IID_IReferenceClock, (LPVOID*)&obj->pLatencyClock, NULL);
 498         if(hr != S_OK)
 499         {
 500                 HeapFree(GetProcessHeap(), 0, obj);
 501                 return hr;
 502         }
 503
 504 if(0)
 505 {
 506         if (pPortParams->dwValidParams & DMUS_PORTPARAMS_CHANNELGROUPS) {
 507           obj->nrofgroups = pPortParams->dwChannelGroups;
 508           /* setting default priorities */
 509           for (j = 0; j < obj->nrofgroups; j++) {
 510             TRACE ("Setting default channel priorities on channel group %i\n", j + 1);
 511             obj->group[j].channel[0].priority = DAUD_CHAN1_DEF_VOICE_PRIORITY;
 512             obj->group[j].channel[1].priority = DAUD_CHAN2_DEF_VOICE_PRIORITY;
 513             obj->group[j].channel[2].priority = DAUD_CHAN3_DEF_VOICE_PRIORITY;
 514             obj->group[j].channel[3].priority = DAUD_CHAN4_DEF_VOICE_PRIORITY;
 515             obj->group[j].channel[4].priority = DAUD_CHAN5_DEF_VOICE_PRIORITY;
 516             obj->group[j].channel[5].priority = DAUD_CHAN6_DEF_VOICE_PRIORITY;
 517             obj->group[j].channel[6].priority = DAUD_CHAN7_DEF_VOICE_PRIORITY;
 518             obj->group[j].channel[7].priority = DAUD_CHAN8_DEF_VOICE_PRIORITY;
 519             obj->group[j].channel[8].priority = DAUD_CHAN9_DEF_VOICE_PRIORITY;
 520             obj->group[j].channel[9].priority = DAUD_CHAN10_DEF_VOICE_PRIORITY;
 521             obj->group[j].channel[10].priority = DAUD_CHAN11_DEF_VOICE_PRIORITY;
 522             obj->group[j].channel[11].priority = DAUD_CHAN12_DEF_VOICE_PRIORITY;
 523             obj->group[j].channel[12].priority = DAUD_CHAN13_DEF_VOICE_PRIORITY;
 524             obj->group[j].channel[13].priority = DAUD_CHAN14_DEF_VOICE_PRIORITY;
 525             obj->group[j].channel[14].priority = DAUD_CHAN15_DEF_VOICE_PRIORITY;
 526             obj->group[j].channel[15].priority = DAUD_CHAN16_DEF_VOICE_PRIORITY;
 527           }
 528         }
 529 }
 530
 531         return IDirectMusicPortImpl_QueryInterface ((LPDIRECTMUSICPORT)obj, lpcGUID, ppobj);
 532 }