dlls/wineoss.drv/mmdevdrv.c

   1 /*
   2  * Copyright 2011 Andrew Eikum for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #define NONAMELESSUNION
  20 #define COBJMACROS
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <errno.h>
  25 #include <limits.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <sys/ioctl.h>
  32 #include <fcntl.h>
  33 #include <unistd.h>
  34 #include <math.h>
  35 #include <sys/soundcard.h>
  36
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winnls.h"
  40 #include "winreg.h"
  41 #include "wine/debug.h"
  42 #include "wine/unicode.h"
  43 #include "wine/list.h"
  44
  45 #include "ole2.h"
  46 #include "mmdeviceapi.h"
  47 #include "devpkey.h"
  48 #include "dshow.h"
  49 #include "dsound.h"
  50
  51 #include "initguid.h"
  52 #include "endpointvolume.h"
  53 #include "audiopolicy.h"
  54 #include "audioclient.h"
  55
  56
  57 /* Some implementations of OSS, such as FreeBSD older than 9.0, lack
  58    SNDCTL_DSP_HALT which is just a synonym for the older SNDCTL_DSP_RESET. */
  59 #ifndef SNDCTL_DSP_HALT
  60 #define SNDCTL_DSP_HALT SNDCTL_DSP_RESET
  61 #endif
  62
  63 WINE_DEFAULT_DEBUG_CHANNEL(oss);
  64
  65 #define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
  66
  67 static const REFERENCE_TIME DefaultPeriod = 200000;
  68 static const REFERENCE_TIME MinimumPeriod = 100000;
  69
  70 struct ACImpl;
  71 typedef struct ACImpl ACImpl;
  72
  73 typedef struct _AudioSession {
  74     GUID guid;
  75     struct list clients;
  76
  77     IMMDevice *device;
  78
  79     float master_vol;
  80     UINT32 channel_count;
  81     float *channel_vols;
  82     BOOL mute;
  83
  84     CRITICAL_SECTION lock;
  85
  86     struct list entry;
  87 } AudioSession;
  88
  89 typedef struct _AudioSessionWrapper {
  90     IAudioSessionControl2 IAudioSessionControl2_iface;
  91     IChannelAudioVolume IChannelAudioVolume_iface;
  92     ISimpleAudioVolume ISimpleAudioVolume_iface;
  93
  94     LONG ref;
  95
  96     ACImpl *client;
  97     AudioSession *session;
  98 } AudioSessionWrapper;
  99
 100 struct ACImpl {
 101     IAudioClient IAudioClient_iface;
 102     IAudioRenderClient IAudioRenderClient_iface;
 103     IAudioCaptureClient IAudioCaptureClient_iface;
 104     IAudioClock IAudioClock_iface;
 105     IAudioClock2 IAudioClock2_iface;
 106     IAudioStreamVolume IAudioStreamVolume_iface;
 107
 108     LONG ref;
 109
 110     IMMDevice *parent;
 111
 112     WAVEFORMATEX *fmt;
 113
 114     EDataFlow dataflow;
 115     DWORD flags;
 116     AUDCLNT_SHAREMODE share;
 117     HANDLE event;
 118     float *vols;
 119
 120     int fd;
 121     oss_audioinfo ai;
 122
 123     BOOL initted, playing;
 124     UINT64 written_frames;
 125     UINT32 period_us, bufsize_frames, held_frames, tmp_buffer_frames, inbuf_frames;
 126     UINT32 lcl_offs_frames; /* offs into local_buffer where valid data starts */
 127
 128     BYTE *local_buffer, *tmp_buffer;
 129     int buf_state;
 130     HANDLE timer;
 131
 132     CRITICAL_SECTION lock;
 133
 134     AudioSession *session;
 135     AudioSessionWrapper *session_wrapper;
 136
 137     struct list entry;
 138 };
 139
 140 enum BufferStates {
 141     NOT_LOCKED = 0,
 142     LOCKED_NORMAL, /* public buffer piece is from local_buffer */
 143     LOCKED_WRAPPED /* public buffer piece is in tmp_buffer */
 144 };
 145
 146 typedef struct _SessionMgr {
 147     IAudioSessionManager2 IAudioSessionManager2_iface;
 148
 149     LONG ref;
 150
 151     IMMDevice *device;
 152 } SessionMgr;
 153
 154 static HANDLE g_timer_q;
 155
 156 static CRITICAL_SECTION g_sessions_lock;
 157 static struct list g_sessions = LIST_INIT(g_sessions);
 158
 159 static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client);
 160 static HRESULT oss_setvol(ACImpl *This, UINT32 index);
 161
 162 static const IAudioClientVtbl AudioClient_Vtbl;
 163 static const IAudioRenderClientVtbl AudioRenderClient_Vtbl;
 164 static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl;
 165 static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl;
 166 static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl;
 167 static const IAudioClockVtbl AudioClock_Vtbl;
 168 static const IAudioClock2Vtbl AudioClock2_Vtbl;
 169 static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl;
 170 static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl;
 171 static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl;
 172
 173 static inline ACImpl *impl_from_IAudioClient(IAudioClient *iface)
 174 {
 175     return CONTAINING_RECORD(iface, ACImpl, IAudioClient_iface);
 176 }
 177
 178 static inline ACImpl *impl_from_IAudioRenderClient(IAudioRenderClient *iface)
 179 {
 180     return CONTAINING_RECORD(iface, ACImpl, IAudioRenderClient_iface);
 181 }
 182
 183 static inline ACImpl *impl_from_IAudioCaptureClient(IAudioCaptureClient *iface)
 184 {
 185     return CONTAINING_RECORD(iface, ACImpl, IAudioCaptureClient_iface);
 186 }
 187
 188 static inline AudioSessionWrapper *impl_from_IAudioSessionControl2(IAudioSessionControl2 *iface)
 189 {
 190     return CONTAINING_RECORD(iface, AudioSessionWrapper, IAudioSessionControl2_iface);
 191 }
 192
 193 static inline AudioSessionWrapper *impl_from_ISimpleAudioVolume(ISimpleAudioVolume *iface)
 194 {
 195     return CONTAINING_RECORD(iface, AudioSessionWrapper, ISimpleAudioVolume_iface);
 196 }
 197
 198 static inline AudioSessionWrapper *impl_from_IChannelAudioVolume(IChannelAudioVolume *iface)
 199 {
 200     return CONTAINING_RECORD(iface, AudioSessionWrapper, IChannelAudioVolume_iface);
 201 }
 202
 203 static inline ACImpl *impl_from_IAudioClock(IAudioClock *iface)
 204 {
 205     return CONTAINING_RECORD(iface, ACImpl, IAudioClock_iface);
 206 }
 207
 208 static inline ACImpl *impl_from_IAudioClock2(IAudioClock2 *iface)
 209 {
 210     return CONTAINING_RECORD(iface, ACImpl, IAudioClock2_iface);
 211 }
 212
 213 static inline ACImpl *impl_from_IAudioStreamVolume(IAudioStreamVolume *iface)
 214 {
 215     return CONTAINING_RECORD(iface, ACImpl, IAudioStreamVolume_iface);
 216 }
 217
 218 static inline SessionMgr *impl_from_IAudioSessionManager2(IAudioSessionManager2 *iface)
 219 {
 220     return CONTAINING_RECORD(iface, SessionMgr, IAudioSessionManager2_iface);
 221 }
 222
 223 BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
 224 {
 225     if(reason == DLL_PROCESS_ATTACH){
 226         g_timer_q = CreateTimerQueue();
 227         if(!g_timer_q)
 228             return FALSE;
 229
 230         InitializeCriticalSection(&g_sessions_lock);
 231     }
 232
 233     return TRUE;
 234 }
 235
 236 /* From <dlls/mmdevapi/mmdevapi.h> */
 237 enum DriverPriority {
 238     Priority_Unavailable = 0,
 239     Priority_Low,
 240     Priority_Neutral,
 241     Priority_Preferred
 242 };
 243
 244 int WINAPI AUDDRV_GetPriority(void)
 245 {
 246     int mixer_fd;
 247     oss_sysinfo sysinfo;
 248
 249     /* Attempt to determine if we are running on OSS or ALSA's OSS
 250      * compatibility layer. There is no official way to do that, so just check
 251      * for validity as best as possible, without rejecting valid OSS
 252      * implementations. */
 253
 254     mixer_fd = open("/dev/mixer", O_RDONLY, 0);
 255     if(mixer_fd < 0){
 256         TRACE("Priority_Unavailable: open failed\n");
 257         return Priority_Unavailable;
 258     }
 259
 260     sysinfo.version[0] = 0xFF;
 261     sysinfo.versionnum = ~0;
 262     if(ioctl(mixer_fd, SNDCTL_SYSINFO, &sysinfo) < 0){
 263         TRACE("Priority_Unavailable: ioctl failed\n");
 264         close(mixer_fd);
 265         return Priority_Unavailable;
 266     }
 267
 268     close(mixer_fd);
 269
 270     if(sysinfo.version[0] < '4' || sysinfo.version[0] > '9'){
 271         TRACE("Priority_Low: sysinfo.version[0]: %x\n", sysinfo.version[0]);
 272         return Priority_Low;
 273     }
 274     if(sysinfo.versionnum & 0x80000000){
 275         TRACE("Priority_Low: sysinfo.versionnum: %x\n", sysinfo.versionnum);
 276         return Priority_Low;
 277     }
 278
 279     TRACE("Priority_Preferred: Seems like valid OSS!\n");
 280
 281     return Priority_Preferred;
 282 }
 283
 284 static UINT get_default_index(EDataFlow flow, char **keys, UINT num)
 285 {
 286     int fd = -1, err, i;
 287     oss_audioinfo ai;
 288
 289     if(flow == eRender)
 290         fd = open("/dev/dsp", O_WRONLY);
 291     else
 292         fd = open("/dev/dsp", O_RDONLY);
 293
 294     if(fd < 0){
 295         WARN("Couldn't open default device!\n");
 296         return 0;
 297     }
 298
 299     ai.dev = -1;
 300     if((err = ioctl(fd, SNDCTL_ENGINEINFO, &ai)) < 0){
 301         WARN("SNDCTL_ENGINEINFO failed: %d (%s)\n", err, strerror(errno));
 302         close(fd);
 303         return 0;
 304     }
 305
 306     close(fd);
 307
 308     TRACE("Default devnode: %s\n", ai.devnode);
 309     for(i = 0; i < num; ++i)
 310         if(!strcmp(ai.devnode, keys[i]))
 311             return i;
 312
 313     WARN("Couldn't find default device! Choosing first.\n");
 314     return 0;
 315 }
 316
 317 HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids, char ***keys,
 318         UINT *num, UINT *def_index)
 319 {
 320     int i, mixer_fd;
 321     oss_sysinfo sysinfo;
 322     static int print_once = 0;
 323
 324     TRACE("%d %p %p %p\n", flow, ids, num, def_index);
 325
 326     mixer_fd = open("/dev/mixer", O_RDONLY, 0);
 327     if(mixer_fd < 0){
 328         ERR("OSS /dev/mixer doesn't seem to exist\n");
 329         return AUDCLNT_E_SERVICE_NOT_RUNNING;
 330     }
 331
 332     if(ioctl(mixer_fd, SNDCTL_SYSINFO, &sysinfo) < 0){
 333         close(mixer_fd);
 334
 335         if(errno == EINVAL){
 336             ERR("OSS version too old, need at least OSSv4\n");
 337             return AUDCLNT_E_SERVICE_NOT_RUNNING;
 338         }
 339
 340         ERR("Error getting SNDCTL_SYSINFO: %d (%s)\n", errno, strerror(errno));
 341         return E_FAIL;
 342     }
 343
 344     if(!print_once){
 345         TRACE("OSS sysinfo:\n");
 346         TRACE("product: %s\n", sysinfo.product);
 347         TRACE("version: %s\n", sysinfo.version);
 348         TRACE("versionnum: %x\n", sysinfo.versionnum);
 349         TRACE("numaudios: %d\n", sysinfo.numaudios);
 350         TRACE("nummixers: %d\n", sysinfo.nummixers);
 351         TRACE("numcards: %d\n", sysinfo.numcards);
 352         TRACE("numaudioengines: %d\n", sysinfo.numaudioengines);
 353         print_once = 1;
 354     }
 355
 356     if(sysinfo.numaudios <= 0){
 357         WARN("No audio devices!\n");
 358         close(mixer_fd);
 359         return AUDCLNT_E_SERVICE_NOT_RUNNING;
 360     }
 361
 362     *ids = HeapAlloc(GetProcessHeap(), 0, sysinfo.numaudios * sizeof(WCHAR *));
 363     *keys = HeapAlloc(GetProcessHeap(), 0, sysinfo.numaudios * sizeof(char *));
 364
 365     *num = 0;
 366     for(i = 0; i < sysinfo.numaudios; ++i){
 367         oss_audioinfo ai = {0};
 368         int fd;
 369
 370         ai.dev = i;
 371         if(ioctl(mixer_fd, SNDCTL_AUDIOINFO, &ai) < 0){
 372             WARN("Error getting AUDIOINFO for dev %d: %d (%s)\n", i, errno,
 373                     strerror(errno));
 374             continue;
 375         }
 376
 377         if(flow == eRender)
 378             fd = open(ai.devnode, O_WRONLY, 0);
 379         else
 380             fd = open(ai.devnode, O_RDONLY, 0);
 381         if(fd < 0){
 382             WARN("Opening device \"%s\" failed, pretending it doesn't exist: %d (%s)\n",
 383                     ai.devnode, errno, strerror(errno));
 384             continue;
 385         }
 386         close(fd);
 387
 388         if((flow == eCapture && (ai.caps & PCM_CAP_INPUT)) ||
 389                 (flow == eRender && (ai.caps & PCM_CAP_OUTPUT))){
 390             size_t len;
 391
 392             (*keys)[*num] = HeapAlloc(GetProcessHeap(), 0,
 393                     strlen(ai.devnode) + 1);
 394             if(!(*keys)[*num]){
 395                 for(i = 0; i < *num; ++i){
 396                     HeapFree(GetProcessHeap(), 0, (*ids)[i]);
 397                     HeapFree(GetProcessHeap(), 0, (*keys)[i]);
 398                 }
 399                 HeapFree(GetProcessHeap(), 0, *ids);
 400                 HeapFree(GetProcessHeap(), 0, *keys);
 401                 close(mixer_fd);
 402                 return E_OUTOFMEMORY;
 403             }
 404             strcpy((*keys)[*num], ai.devnode);
 405
 406             len = MultiByteToWideChar(CP_UNIXCP, 0, ai.name, -1, NULL, 0);
 407             (*ids)[*num] = HeapAlloc(GetProcessHeap(), 0,
 408                     len * sizeof(WCHAR));
 409             if(!(*ids)[*num]){
 410                 HeapFree(GetProcessHeap(), 0, (*keys)[*num]);
 411                 for(i = 0; i < *num; ++i){
 412                     HeapFree(GetProcessHeap(), 0, (*ids)[i]);
 413                     HeapFree(GetProcessHeap(), 0, (*keys)[i]);
 414                 }
 415                 HeapFree(GetProcessHeap(), 0, *ids);
 416                 HeapFree(GetProcessHeap(), 0, *keys);
 417                 close(mixer_fd);
 418                 return E_OUTOFMEMORY;
 419             }
 420             MultiByteToWideChar(CP_UNIXCP, 0, ai.name, -1,
 421                     (*ids)[*num], len);
 422
 423             (*num)++;
 424         }
 425     }
 426
 427     close(mixer_fd);
 428
 429     *def_index = get_default_index(flow, *keys, *num);
 430
 431     return S_OK;
 432 }
 433
 434 HRESULT WINAPI AUDDRV_GetAudioEndpoint(char *devnode, IMMDevice *dev,
 435         EDataFlow dataflow, IAudioClient **out)
 436 {
 437     ACImpl *This;
 438
 439     TRACE("%s %p %d %p\n", devnode, dev, dataflow, out);
 440
 441     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ACImpl));
 442     if(!This)
 443         return E_OUTOFMEMORY;
 444
 445     if(dataflow == eRender)
 446         This->fd = open(devnode, O_WRONLY, 0);
 447     else if(dataflow == eCapture)
 448         This->fd = open(devnode, O_RDONLY, 0);
 449     else{
 450         HeapFree(GetProcessHeap(), 0, This);
 451         return E_INVALIDARG;
 452     }
 453     if(This->fd < 0){
 454         ERR("Unable to open device %s: %d (%s)\n", devnode, errno,
 455                 strerror(errno));
 456         HeapFree(GetProcessHeap(), 0, This);
 457         return AUDCLNT_E_DEVICE_INVALIDATED;
 458     }
 459
 460     This->dataflow = dataflow;
 461
 462     This->ai.dev = -1;
 463     if(ioctl(This->fd, SNDCTL_ENGINEINFO, &This->ai) < 0){
 464         ERR("Unable to get audio info for device %s: %d (%s)\n", devnode,
 465                 errno, strerror(errno));
 466         close(This->fd);
 467         HeapFree(GetProcessHeap(), 0, This);
 468         return E_FAIL;
 469     }
 470
 471     TRACE("OSS audioinfo:\n");
 472     TRACE("devnode: %s\n", This->ai.devnode);
 473     TRACE("name: %s\n", This->ai.name);
 474     TRACE("busy: %x\n", This->ai.busy);
 475     TRACE("caps: %x\n", This->ai.caps);
 476     TRACE("iformats: %x\n", This->ai.iformats);
 477     TRACE("oformats: %x\n", This->ai.oformats);
 478     TRACE("enabled: %d\n", This->ai.enabled);
 479     TRACE("min_rate: %d\n", This->ai.min_rate);
 480     TRACE("max_rate: %d\n", This->ai.max_rate);
 481     TRACE("min_channels: %d\n", This->ai.min_channels);
 482     TRACE("max_channels: %d\n", This->ai.max_channels);
 483
 484     This->IAudioClient_iface.lpVtbl = &AudioClient_Vtbl;
 485     This->IAudioRenderClient_iface.lpVtbl = &AudioRenderClient_Vtbl;
 486     This->IAudioCaptureClient_iface.lpVtbl = &AudioCaptureClient_Vtbl;
 487     This->IAudioClock_iface.lpVtbl = &AudioClock_Vtbl;
 488     This->IAudioClock2_iface.lpVtbl = &AudioClock2_Vtbl;
 489     This->IAudioStreamVolume_iface.lpVtbl = &AudioStreamVolume_Vtbl;
 490
 491     InitializeCriticalSection(&This->lock);
 492
 493     This->parent = dev;
 494     IMMDevice_AddRef(This->parent);
 495
 496     IAudioClient_AddRef(&This->IAudioClient_iface);
 497
 498     *out = &This->IAudioClient_iface;
 499
 500     return S_OK;
 501 }
 502
 503 static HRESULT WINAPI AudioClient_QueryInterface(IAudioClient *iface,
 504         REFIID riid, void **ppv)
 505 {
 506     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
 507
 508     if(!ppv)
 509         return E_POINTER;
 510     *ppv = NULL;
 511     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClient))
 512         *ppv = iface;
 513     if(*ppv){
 514         IUnknown_AddRef((IUnknown*)*ppv);
 515         return S_OK;
 516     }
 517     WARN("Unknown interface %s\n", debugstr_guid(riid));
 518     return E_NOINTERFACE;
 519 }
 520
 521 static ULONG WINAPI AudioClient_AddRef(IAudioClient *iface)
 522 {
 523     ACImpl *This = impl_from_IAudioClient(iface);
 524     ULONG ref;
 525     ref = InterlockedIncrement(&This->ref);
 526     TRACE("(%p) Refcount now %u\n", This, ref);
 527     return ref;
 528 }
 529
 530 static ULONG WINAPI AudioClient_Release(IAudioClient *iface)
 531 {
 532     ACImpl *This = impl_from_IAudioClient(iface);
 533     ULONG ref;
 534     ref = InterlockedDecrement(&This->ref);
 535     TRACE("(%p) Refcount now %u\n", This, ref);
 536     if(!ref){
 537         IAudioClient_Stop(iface);
 538         IMMDevice_Release(This->parent);
 539         DeleteCriticalSection(&This->lock);
 540         close(This->fd);
 541         if(This->initted){
 542             EnterCriticalSection(&g_sessions_lock);
 543             list_remove(&This->entry);
 544             LeaveCriticalSection(&g_sessions_lock);
 545         }
 546         HeapFree(GetProcessHeap(), 0, This->vols);
 547         HeapFree(GetProcessHeap(), 0, This->local_buffer);
 548         HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
 549         CoTaskMemFree(This->fmt);
 550         HeapFree(GetProcessHeap(), 0, This);
 551     }
 552     return ref;
 553 }
 554
 555 static void dump_fmt(const WAVEFORMATEX *fmt)
 556 {
 557     TRACE("wFormatTag: 0x%x (", fmt->wFormatTag);
 558     switch(fmt->wFormatTag){
 559     case WAVE_FORMAT_PCM:
 560         TRACE("WAVE_FORMAT_PCM");
 561         break;
 562     case WAVE_FORMAT_IEEE_FLOAT:
 563         TRACE("WAVE_FORMAT_IEEE_FLOAT");
 564         break;
 565     case WAVE_FORMAT_EXTENSIBLE:
 566         TRACE("WAVE_FORMAT_EXTENSIBLE");
 567         break;
 568     default:
 569         TRACE("Unknown");
 570         break;
 571     }
 572     TRACE(")\n");
 573
 574     TRACE("nChannels: %u\n", fmt->nChannels);
 575     TRACE("nSamplesPerSec: %u\n", fmt->nSamplesPerSec);
 576     TRACE("nAvgBytesPerSec: %u\n", fmt->nAvgBytesPerSec);
 577     TRACE("nBlockAlign: %u\n", fmt->nBlockAlign);
 578     TRACE("wBitsPerSample: %u\n", fmt->wBitsPerSample);
 579     TRACE("cbSize: %u\n", fmt->cbSize);
 580
 581     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
 582         WAVEFORMATEXTENSIBLE *fmtex = (void*)fmt;
 583         TRACE("dwChannelMask: %08x\n", fmtex->dwChannelMask);
 584         TRACE("Samples: %04x\n", fmtex->Samples.wReserved);
 585         TRACE("SubFormat: %s\n", wine_dbgstr_guid(&fmtex->SubFormat));
 586     }
 587 }
 588
 589 static DWORD get_channel_mask(unsigned int channels)
 590 {
 591     switch(channels){
 592     case 0:
 593         return 0;
 594     case 1:
 595         return KSAUDIO_SPEAKER_MONO;
 596     case 2:
 597         return KSAUDIO_SPEAKER_STEREO;
 598     case 3:
 599         return KSAUDIO_SPEAKER_STEREO | SPEAKER_LOW_FREQUENCY;
 600     case 4:
 601         return KSAUDIO_SPEAKER_QUAD;    /* not _SURROUND */
 602     case 5:
 603         return KSAUDIO_SPEAKER_QUAD | SPEAKER_LOW_FREQUENCY;
 604     case 6:
 605         return KSAUDIO_SPEAKER_5POINT1; /* not 5POINT1_SURROUND */
 606     case 7:
 607         return KSAUDIO_SPEAKER_5POINT1 | SPEAKER_BACK_CENTER;
 608     case 8:
 609         return KSAUDIO_SPEAKER_7POINT1; /* not 7POINT1_SURROUND */
 610     }
 611     FIXME("Unknown speaker configuration: %u\n", channels);
 612     return 0;
 613 }
 614
 615 static int get_oss_format(const WAVEFORMATEX *fmt)
 616 {
 617     WAVEFORMATEXTENSIBLE *fmtex = (WAVEFORMATEXTENSIBLE*)fmt;
 618
 619     if(fmt->wFormatTag == WAVE_FORMAT_PCM ||
 620             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 621              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))){
 622         switch(fmt->wBitsPerSample){
 623         case 8:
 624             return AFMT_U8;
 625         case 16:
 626             return AFMT_S16_LE;
 627         case 24:
 628             return AFMT_S24_LE;
 629         case 32:
 630             return AFMT_S32_LE;
 631         }
 632         return -1;
 633     }
 634
 635 #ifdef AFMT_FLOAT
 636     if(fmt->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
 637             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 638              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))){
 639         if(fmt->wBitsPerSample != 32)
 640             return -1;
 641
 642         return AFMT_FLOAT;
 643     }
 644 #endif
 645
 646     return -1;
 647 }
 648
 649 static WAVEFORMATEX *clone_format(const WAVEFORMATEX *fmt)
 650 {
 651     WAVEFORMATEX *ret;
 652     size_t size;
 653
 654     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
 655         size = sizeof(WAVEFORMATEXTENSIBLE);
 656     else
 657         size = sizeof(WAVEFORMATEX);
 658
 659     ret = CoTaskMemAlloc(size);
 660     if(!ret)
 661         return NULL;
 662
 663     memcpy(ret, fmt, size);
 664
 665     ret->cbSize = size - sizeof(WAVEFORMATEX);
 666
 667     return ret;
 668 }
 669
 670 static HRESULT setup_oss_device(ACImpl *This, const WAVEFORMATEX *fmt,
 671         WAVEFORMATEX **out, BOOL query)
 672 {
 673     int tmp, oss_format;
 674     double tenth;
 675     HRESULT ret = S_OK;
 676     WAVEFORMATEXTENSIBLE *fmtex = (void*)fmt;
 677     WAVEFORMATEX *closest = NULL;
 678
 679     if(out)
 680         *out = NULL;
 681
 682     tmp = oss_format = get_oss_format(fmt);
 683     if(oss_format < 0)
 684         return AUDCLNT_E_UNSUPPORTED_FORMAT;
 685     if(ioctl(This->fd, SNDCTL_DSP_SETFMT, &tmp) < 0){
 686         WARN("SETFMT failed: %d (%s)\n", errno, strerror(errno));
 687         return E_FAIL;
 688     }
 689     if(tmp != oss_format){
 690         TRACE("Format unsupported by this OSS version: %x\n", oss_format);
 691         return AUDCLNT_E_UNSUPPORTED_FORMAT;
 692     }
 693
 694     closest = clone_format(fmt);
 695     if(!closest)
 696         return E_OUTOFMEMORY;
 697
 698     tmp = fmt->nSamplesPerSec;
 699     if(ioctl(This->fd, SNDCTL_DSP_SPEED, &tmp) < 0){
 700         WARN("SPEED failed: %d (%s)\n", errno, strerror(errno));
 701         CoTaskMemFree(closest);
 702         return E_FAIL;
 703     }
 704     tenth = fmt->nSamplesPerSec * 0.1;
 705     if(tmp > fmt->nSamplesPerSec + tenth || tmp < fmt->nSamplesPerSec - tenth){
 706         ret = S_FALSE;
 707         closest->nSamplesPerSec = tmp;
 708     }
 709
 710     tmp = fmt->nChannels;
 711     if(ioctl(This->fd, SNDCTL_DSP_CHANNELS, &tmp) < 0){
 712         WARN("CHANNELS failed: %d (%s)\n", errno, strerror(errno));
 713         CoTaskMemFree(closest);
 714         return E_FAIL;
 715     }
 716     if(tmp != fmt->nChannels){
 717         ret = S_FALSE;
 718         closest->nChannels = tmp;
 719     }
 720
 721     if(closest->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
 722         DWORD mask = get_channel_mask(closest->nChannels);
 723
 724         ((WAVEFORMATEXTENSIBLE*)closest)->dwChannelMask = mask;
 725
 726         if(query && fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 727                 fmtex->dwChannelMask != 0 &&
 728                 fmtex->dwChannelMask != mask)
 729             ret = S_FALSE;
 730     }
 731
 732     if(ret == S_FALSE && out){
 733         closest->nBlockAlign =
 734             closest->nChannels * closest->wBitsPerSample / 8;
 735         closest->nAvgBytesPerSec =
 736             closest->nBlockAlign * closest->nSamplesPerSec;
 737         *out = closest;
 738     } else
 739         CoTaskMemFree(closest);
 740
 741     TRACE("returning: %08x\n", ret);
 742     return ret;
 743 }
 744
 745 static void session_init_vols(AudioSession *session, UINT channels)
 746 {
 747     if(session->channel_count < channels){
 748         UINT i;
 749
 750         if(session->channel_vols)
 751             session->channel_vols = HeapReAlloc(GetProcessHeap(), 0,
 752                     session->channel_vols, sizeof(float) * channels);
 753         else
 754             session->channel_vols = HeapAlloc(GetProcessHeap(), 0,
 755                     sizeof(float) * channels);
 756         if(!session->channel_vols)
 757             return;
 758
 759         for(i = session->channel_count; i < channels; ++i)
 760             session->channel_vols[i] = 1.f;
 761
 762         session->channel_count = channels;
 763     }
 764 }
 765
 766 static AudioSession *create_session(const GUID *guid, IMMDevice *device,
 767         UINT num_channels)
 768 {
 769     AudioSession *ret;
 770
 771     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(AudioSession));
 772     if(!ret)
 773         return NULL;
 774
 775     memcpy(&ret->guid, guid, sizeof(GUID));
 776
 777     ret->device = device;
 778
 779     list_init(&ret->clients);
 780
 781     list_add_head(&g_sessions, &ret->entry);
 782
 783     InitializeCriticalSection(&ret->lock);
 784
 785     session_init_vols(ret, num_channels);
 786
 787     ret->master_vol = 1.f;
 788
 789     return ret;
 790 }
 791
 792 /* if channels == 0, then this will return or create a session with
 793  * matching dataflow and GUID. otherwise, channels must also match */
 794 static HRESULT get_audio_session(const GUID *sessionguid,
 795         IMMDevice *device, UINT channels, AudioSession **out)
 796 {
 797     AudioSession *session;
 798
 799     if(!sessionguid || IsEqualGUID(sessionguid, &GUID_NULL)){
 800         *out = create_session(&GUID_NULL, device, channels);
 801         if(!*out)
 802             return E_OUTOFMEMORY;
 803
 804         return S_OK;
 805     }
 806
 807     *out = NULL;
 808     LIST_FOR_EACH_ENTRY(session, &g_sessions, AudioSession, entry){
 809         if(session->device == device &&
 810                 IsEqualGUID(sessionguid, &session->guid)){
 811             session_init_vols(session, channels);
 812             *out = session;
 813             break;
 814         }
 815     }
 816
 817     if(!*out){
 818         *out = create_session(sessionguid, device, channels);
 819         if(!*out)
 820             return E_OUTOFMEMORY;
 821     }
 822
 823     return S_OK;
 824 }
 825
 826 static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
 827         AUDCLNT_SHAREMODE mode, DWORD flags, REFERENCE_TIME duration,
 828         REFERENCE_TIME period, const WAVEFORMATEX *fmt,
 829         const GUID *sessionguid)
 830 {
 831     ACImpl *This = impl_from_IAudioClient(iface);
 832     int mask, i;
 833     HRESULT hr;
 834
 835     TRACE("(%p)->(%x, %x, %s, %s, %p, %s)\n", This, mode, flags,
 836           wine_dbgstr_longlong(duration), wine_dbgstr_longlong(period), fmt, debugstr_guid(sessionguid));
 837
 838     if(!fmt)
 839         return E_POINTER;
 840
 841     dump_fmt(fmt);
 842
 843     if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
 844         return AUDCLNT_E_NOT_INITIALIZED;
 845
 846     if(flags & ~(AUDCLNT_STREAMFLAGS_CROSSPROCESS |
 847                 AUDCLNT_STREAMFLAGS_LOOPBACK |
 848                 AUDCLNT_STREAMFLAGS_EVENTCALLBACK |
 849                 AUDCLNT_STREAMFLAGS_NOPERSIST |
 850                 AUDCLNT_STREAMFLAGS_RATEADJUST |
 851                 AUDCLNT_SESSIONFLAGS_EXPIREWHENUNOWNED |
 852                 AUDCLNT_SESSIONFLAGS_DISPLAY_HIDE |
 853                 AUDCLNT_SESSIONFLAGS_DISPLAY_HIDEWHENEXPIRED)){
 854         TRACE("Unknown flags: %08x\n", flags);
 855         return E_INVALIDARG;
 856     }
 857
 858     EnterCriticalSection(&This->lock);
 859
 860     if(This->initted){
 861         LeaveCriticalSection(&This->lock);
 862         return AUDCLNT_E_ALREADY_INITIALIZED;
 863     }
 864
 865     hr = setup_oss_device(This, fmt, NULL, FALSE);
 866     if(hr == S_FALSE){
 867         LeaveCriticalSection(&This->lock);
 868         return AUDCLNT_E_UNSUPPORTED_FORMAT;
 869     }
 870     if(FAILED(hr)){
 871         LeaveCriticalSection(&This->lock);
 872         return hr;
 873     }
 874
 875     mask = 0;
 876     if(ioctl(This->fd, SNDCTL_DSP_SETTRIGGER, &mask) < 0){
 877         LeaveCriticalSection(&This->lock);
 878         WARN("SETTRIGGER failed: %d (%s)\n", errno, strerror(errno));
 879         return E_FAIL;
 880     }
 881
 882     mask = (100 << 8) | 100;
 883     if(ioctl(This->fd, SNDCTL_DSP_SETPLAYVOL, &mask) < 0)
 884         WARN("SETPLAYVOL failed: %d (%s)\n", errno, strerror(errno));
 885
 886     This->fmt = clone_format(fmt);
 887     if(!This->fmt){
 888         LeaveCriticalSection(&This->lock);
 889         return E_OUTOFMEMORY;
 890     }
 891
 892     if(period)
 893         This->period_us = period / 10;
 894     else
 895         This->period_us = DefaultPeriod / 10;
 896
 897     if(!duration)
 898         duration = 300000; /* 0.03s */
 899     This->bufsize_frames = ceil(fmt->nSamplesPerSec * (duration / 10000000.));
 900     This->local_buffer = HeapAlloc(GetProcessHeap(), 0,
 901             This->bufsize_frames * fmt->nBlockAlign);
 902     if(!This->local_buffer){
 903         CoTaskMemFree(This->fmt);
 904         This->fmt = NULL;
 905         LeaveCriticalSection(&This->lock);
 906         return E_OUTOFMEMORY;
 907     }
 908
 909     This->vols = HeapAlloc(GetProcessHeap(), 0, fmt->nChannels * sizeof(float));
 910     if(!This->vols){
 911         CoTaskMemFree(This->fmt);
 912         This->fmt = NULL;
 913         LeaveCriticalSection(&This->lock);
 914         return E_OUTOFMEMORY;
 915     }
 916
 917     for(i = 0; i < fmt->nChannels; ++i)
 918         This->vols[i] = 1.f;
 919
 920     This->share = mode;
 921     This->flags = flags;
 922
 923     EnterCriticalSection(&g_sessions_lock);
 924
 925     hr = get_audio_session(sessionguid, This->parent, fmt->nChannels,
 926             &This->session);
 927     if(FAILED(hr)){
 928         LeaveCriticalSection(&g_sessions_lock);
 929         HeapFree(GetProcessHeap(), 0, This->vols);
 930         This->vols = NULL;
 931         CoTaskMemFree(This->fmt);
 932         This->fmt = NULL;
 933         LeaveCriticalSection(&This->lock);
 934         return hr;
 935     }
 936
 937     list_add_tail(&This->session->clients, &This->entry);
 938
 939     LeaveCriticalSection(&g_sessions_lock);
 940
 941     This->initted = TRUE;
 942
 943     oss_setvol(This, -1);
 944
 945     LeaveCriticalSection(&This->lock);
 946
 947     return S_OK;
 948 }
 949
 950 static HRESULT WINAPI AudioClient_GetBufferSize(IAudioClient *iface,
 951         UINT32 *frames)
 952 {
 953     ACImpl *This = impl_from_IAudioClient(iface);
 954
 955     TRACE("(%p)->(%p)\n", This, frames);
 956
 957     if(!frames)
 958         return E_POINTER;
 959
 960     EnterCriticalSection(&This->lock);
 961
 962     if(!This->initted){
 963         LeaveCriticalSection(&This->lock);
 964         return AUDCLNT_E_NOT_INITIALIZED;
 965     }
 966
 967     *frames = This->bufsize_frames;
 968
 969     LeaveCriticalSection(&This->lock);
 970
 971     return S_OK;
 972 }
 973
 974 static HRESULT WINAPI AudioClient_GetStreamLatency(IAudioClient *iface,
 975         REFERENCE_TIME *latency)
 976 {
 977     ACImpl *This = impl_from_IAudioClient(iface);
 978
 979     TRACE("(%p)->(%p)\n", This, latency);
 980
 981     if(!latency)
 982         return E_POINTER;
 983
 984     EnterCriticalSection(&This->lock);
 985
 986     if(!This->initted){
 987         LeaveCriticalSection(&This->lock);
 988         return AUDCLNT_E_NOT_INITIALIZED;
 989     }
 990
 991     if(This->dataflow == eRender){
 992         int delay_bytes;
 993         double delay_s;
 994
 995         if(ioctl(This->fd, SNDCTL_DSP_GETODELAY, &delay_bytes) < 0){
 996             LeaveCriticalSection(&This->lock);
 997             WARN("GETODELAY failed: %d (%s)\n", errno, strerror(errno));
 998             return E_FAIL;
 999         }
1000
1001         delay_s = delay_bytes / (double)(This->fmt->nSamplesPerSec *
1002                 This->fmt->nBlockAlign);
1003
1004         *latency = delay_s * 10000000;
1005     }else
1006         *latency = 10000; /* OSS doesn't provide input latency */
1007
1008     LeaveCriticalSection(&This->lock);
1009
1010     return S_OK;
1011 }
1012
1013 static HRESULT WINAPI AudioClient_GetCurrentPadding(IAudioClient *iface,
1014         UINT32 *numpad)
1015 {
1016     ACImpl *This = impl_from_IAudioClient(iface);
1017     audio_buf_info bi;
1018
1019     TRACE("(%p)->(%p)\n", This, numpad);
1020
1021     if(!numpad)
1022         return E_POINTER;
1023
1024     EnterCriticalSection(&This->lock);
1025
1026     if(!This->initted){
1027         LeaveCriticalSection(&This->lock);
1028         return AUDCLNT_E_NOT_INITIALIZED;
1029     }
1030
1031     if(This->dataflow == eRender){
1032         if(ioctl(This->fd, SNDCTL_DSP_GETOSPACE, &bi) < 0){
1033             LeaveCriticalSection(&This->lock);
1034             WARN("GETOSPACE failed: %d (%s)\n", errno, strerror(errno));
1035             return E_FAIL;
1036         }
1037
1038         *numpad = (bi.fragstotal * bi.fragsize - bi.bytes) /
1039             This->fmt->nBlockAlign;
1040
1041         /* when the OSS buffer has less than one fragment of data, including
1042          * no data, it often reports it as some non-zero portion of a
1043          * fragment. when it has more than one fragment of data, it reports
1044          * it as some multiple of that portion of the fragment size.
1045          *
1046          * so, we have to do some ugly workarounds to report the timing
1047          * as accurately as possible */
1048         if(*numpad < bi.fragsize / This->fmt->nBlockAlign){
1049             *numpad = This->inbuf_frames;
1050             This->inbuf_frames = 0;
1051         }else{
1052             if(*numpad < This->inbuf_frames)
1053                 This->inbuf_frames = *numpad;
1054             else
1055                 *numpad = This->inbuf_frames;
1056         }
1057     }else if(This->dataflow == eCapture){
1058         if(ioctl(This->fd, SNDCTL_DSP_GETISPACE, &bi) < 0){
1059             LeaveCriticalSection(&This->lock);
1060             WARN("GETISPACE failed: %d (%s)\n", errno, strerror(errno));
1061             return E_FAIL;
1062         }
1063
1064         if(bi.bytes <= bi.fragsize)
1065             *numpad = 0;
1066         else
1067             *numpad = bi.bytes / This->fmt->nBlockAlign;
1068     }else{
1069         LeaveCriticalSection(&This->lock);
1070         return E_UNEXPECTED;
1071     }
1072
1073     *numpad += This->held_frames;
1074
1075     LeaveCriticalSection(&This->lock);
1076
1077     return S_OK;
1078 }
1079
1080 static HRESULT WINAPI AudioClient_IsFormatSupported(IAudioClient *iface,
1081         AUDCLNT_SHAREMODE mode, const WAVEFORMATEX *pwfx,
1082         WAVEFORMATEX **outpwfx)
1083 {
1084     ACImpl *This = impl_from_IAudioClient(iface);
1085     HRESULT ret;
1086
1087     TRACE("(%p)->(%x, %p, %p)\n", This, mode, pwfx, outpwfx);
1088
1089     if(!pwfx || (mode == AUDCLNT_SHAREMODE_SHARED && !outpwfx))
1090         return E_POINTER;
1091
1092     if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
1093         return E_INVALIDARG;
1094
1095     if(pwfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1096             pwfx->cbSize < sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX))
1097         return E_INVALIDARG;
1098
1099     dump_fmt(pwfx);
1100
1101     EnterCriticalSection(&This->lock);
1102
1103     ret = setup_oss_device(This, pwfx, outpwfx, TRUE);
1104
1105     LeaveCriticalSection(&This->lock);
1106
1107     return ret;
1108 }
1109
1110 static HRESULT WINAPI AudioClient_GetMixFormat(IAudioClient *iface,
1111         WAVEFORMATEX **pwfx)
1112 {
1113     ACImpl *This = impl_from_IAudioClient(iface);
1114     WAVEFORMATEXTENSIBLE *fmt;
1115     int formats;
1116
1117     TRACE("(%p)->(%p)\n", This, pwfx);
1118
1119     if(!pwfx)
1120         return E_POINTER;
1121     *pwfx = NULL;
1122
1123     if(This->dataflow == eRender)
1124         formats = This->ai.oformats;
1125     else if(This->dataflow == eCapture)
1126         formats = This->ai.iformats;
1127     else
1128         return E_UNEXPECTED;
1129
1130     fmt = CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
1131     if(!fmt)
1132         return E_OUTOFMEMORY;
1133
1134     fmt->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
1135     if(formats & AFMT_S16_LE){
1136         fmt->Format.wBitsPerSample = 16;
1137         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1138 #ifdef AFMT_FLOAT
1139     }else if(formats & AFMT_FLOAT){
1140         fmt->Format.wBitsPerSample = 32;
1141         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
1142 #endif
1143     }else if(formats & AFMT_U8){
1144         fmt->Format.wBitsPerSample = 8;
1145         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1146     }else if(formats & AFMT_S32_LE){
1147         fmt->Format.wBitsPerSample = 32;
1148         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1149     }else if(formats & AFMT_S24_LE){
1150         fmt->Format.wBitsPerSample = 24;
1151         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1152     }else{
1153         ERR("Didn't recognize any available OSS formats: %x\n", formats);
1154         CoTaskMemFree(fmt);
1155         return E_FAIL;
1156     }
1157
1158     fmt->Format.nChannels = This->ai.max_channels;
1159     fmt->Format.nSamplesPerSec = This->ai.max_rate;
1160     fmt->dwChannelMask = get_channel_mask(fmt->Format.nChannels);
1161
1162     fmt->Format.nBlockAlign = (fmt->Format.wBitsPerSample *
1163             fmt->Format.nChannels) / 8;
1164     fmt->Format.nAvgBytesPerSec = fmt->Format.nSamplesPerSec *
1165         fmt->Format.nBlockAlign;
1166
1167     fmt->Samples.wValidBitsPerSample = fmt->Format.wBitsPerSample;
1168     fmt->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
1169
1170     *pwfx = (WAVEFORMATEX*)fmt;
1171     dump_fmt(*pwfx);
1172
1173     return S_OK;
1174 }
1175
1176 static HRESULT WINAPI AudioClient_GetDevicePeriod(IAudioClient *iface,
1177         REFERENCE_TIME *defperiod, REFERENCE_TIME *minperiod)
1178 {
1179     ACImpl *This = impl_from_IAudioClient(iface);
1180
1181     TRACE("(%p)->(%p, %p)\n", This, defperiod, minperiod);
1182
1183     if(!defperiod && !minperiod)
1184         return E_POINTER;
1185
1186     EnterCriticalSection(&This->lock);
1187
1188     if(defperiod)
1189         *defperiod = DefaultPeriod;
1190     if(minperiod)
1191         *minperiod = MinimumPeriod;
1192
1193     LeaveCriticalSection(&This->lock);
1194
1195     return S_OK;
1196 }
1197
1198 static void oss_silence_buffer(ACImpl *This, BYTE *buf, UINT32 frames)
1199 {
1200     if(This->fmt->wBitsPerSample == 8)
1201         memset(buf, 128, frames * This->fmt->nBlockAlign);
1202     else
1203         memset(buf, 0, frames * This->fmt->nBlockAlign);
1204 }
1205
1206 static void oss_write_data(ACImpl *This)
1207 {
1208     ssize_t written;
1209     UINT32 written_frames;
1210     size_t to_write;
1211     BYTE *buf =
1212         This->local_buffer + (This->lcl_offs_frames * This->fmt->nBlockAlign);
1213
1214     if(This->lcl_offs_frames + This->held_frames > This->bufsize_frames)
1215         to_write = This->bufsize_frames - This->lcl_offs_frames;
1216     else
1217         to_write = This->held_frames;
1218
1219     if(This->session->mute)
1220         oss_silence_buffer(This, buf, to_write);
1221
1222     written = write(This->fd, buf, to_write * This->fmt->nBlockAlign);
1223     if(written < 0){
1224         /* EAGAIN is OSS buffer full, log that too */
1225         WARN("write failed: %d (%s)\n", errno, strerror(errno));
1226         return;
1227     }
1228     written_frames = written / This->fmt->nBlockAlign;
1229
1230     This->lcl_offs_frames += written_frames;
1231     This->lcl_offs_frames %= This->bufsize_frames;
1232     This->held_frames -= written_frames;
1233     This->inbuf_frames += written_frames;
1234
1235     if(written_frames < to_write){
1236         /* OSS buffer probably full */
1237         return;
1238     }
1239
1240     if(This->held_frames){
1241         /* wrapped and have some data back at the start to write */
1242
1243         if(This->session->mute)
1244             oss_silence_buffer(This, This->local_buffer, This->held_frames);
1245
1246         written = write(This->fd, This->local_buffer,
1247                 This->held_frames * This->fmt->nBlockAlign);
1248         if(written < 0){
1249             WARN("write failed: %d (%s)\n", errno, strerror(errno));
1250             return;
1251         }
1252         written_frames = written / This->fmt->nBlockAlign;
1253
1254         This->lcl_offs_frames += written_frames;
1255         This->lcl_offs_frames %= This->bufsize_frames;
1256         This->held_frames -= written_frames;
1257         This->inbuf_frames += written_frames;
1258     }
1259 }
1260
1261 static void oss_read_data(ACImpl *This)
1262 {
1263     UINT64 pos, readable;
1264     audio_buf_info bi;
1265     ssize_t nread;
1266
1267     if(ioctl(This->fd, SNDCTL_DSP_GETISPACE, &bi) < 0){
1268         WARN("GETISPACE failed: %d (%s)\n", errno, strerror(errno));
1269         return;
1270     }
1271
1272     pos = (This->held_frames + This->lcl_offs_frames) % This->bufsize_frames;
1273     readable = (This->bufsize_frames - pos) * This->fmt->nBlockAlign;
1274
1275     if(bi.bytes < readable)
1276         readable = bi.bytes;
1277
1278     nread = read(This->fd, This->local_buffer + pos * This->fmt->nBlockAlign,
1279             readable);
1280     if(nread < 0){
1281         WARN("read failed: %d (%s)\n", errno, strerror(errno));
1282         return;
1283     }
1284
1285     This->held_frames += nread / This->fmt->nBlockAlign;
1286
1287     if(This->held_frames > This->bufsize_frames){
1288         WARN("Overflow of unread data\n");
1289         This->lcl_offs_frames += This->held_frames;
1290         This->lcl_offs_frames %= This->bufsize_frames;
1291         This->held_frames = This->bufsize_frames;
1292     }
1293 }
1294
1295 static void CALLBACK oss_period_callback(void *user, BOOLEAN timer)
1296 {
1297     ACImpl *This = user;
1298
1299     EnterCriticalSection(&This->lock);
1300
1301     if(This->dataflow == eRender && This->held_frames)
1302         oss_write_data(This);
1303     else if(This->dataflow == eCapture)
1304         oss_read_data(This);
1305
1306     if(This->event)
1307         SetEvent(This->event);
1308
1309     LeaveCriticalSection(&This->lock);
1310 }
1311
1312 static HRESULT WINAPI AudioClient_Start(IAudioClient *iface)
1313 {
1314     ACImpl *This = impl_from_IAudioClient(iface);
1315     int mask;
1316
1317     TRACE("(%p)\n", This);
1318
1319     EnterCriticalSection(&This->lock);
1320
1321     if(!This->initted){
1322         LeaveCriticalSection(&This->lock);
1323         return AUDCLNT_E_NOT_INITIALIZED;
1324     }
1325
1326     if((This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) && !This->event){
1327         LeaveCriticalSection(&This->lock);
1328         return AUDCLNT_E_EVENTHANDLE_NOT_SET;
1329     }
1330
1331     if(This->playing){
1332         LeaveCriticalSection(&This->lock);
1333         return AUDCLNT_E_NOT_STOPPED;
1334     }
1335
1336     if(This->dataflow == eRender)
1337         mask = PCM_ENABLE_OUTPUT;
1338     else if(This->dataflow == eCapture)
1339         mask = PCM_ENABLE_INPUT;
1340     else{
1341         LeaveCriticalSection(&This->lock);
1342         return E_UNEXPECTED;
1343     }
1344
1345     if(ioctl(This->fd, SNDCTL_DSP_SETTRIGGER, &mask) < 0){
1346         LeaveCriticalSection(&This->lock);
1347         WARN("SETTRIGGER failed: %d (%s)\n", errno, strerror(errno));
1348         return E_FAIL;
1349     }
1350
1351     if(!CreateTimerQueueTimer(&This->timer, g_timer_q,
1352                 oss_period_callback, This, 0, This->period_us / 1000,
1353                 WT_EXECUTEINTIMERTHREAD))
1354         ERR("Unable to create period timer: %u\n", GetLastError());
1355
1356     This->playing = TRUE;
1357
1358     LeaveCriticalSection(&This->lock);
1359
1360     return S_OK;
1361 }
1362
1363 static HRESULT WINAPI AudioClient_Stop(IAudioClient *iface)
1364 {
1365     ACImpl *This = impl_from_IAudioClient(iface);
1366     int mask;
1367
1368     TRACE("(%p)\n", This);
1369
1370     EnterCriticalSection(&This->lock);
1371
1372     if(!This->initted){
1373         LeaveCriticalSection(&This->lock);
1374         return AUDCLNT_E_NOT_INITIALIZED;
1375     }
1376
1377     if(!This->playing){
1378         LeaveCriticalSection(&This->lock);
1379         return S_FALSE;
1380     }
1381
1382     if(This->timer && This->timer != INVALID_HANDLE_VALUE){
1383         DeleteTimerQueueTimer(g_timer_q, This->timer,
1384                 INVALID_HANDLE_VALUE);
1385         This->timer = NULL;
1386     }
1387
1388     if(ioctl(This->fd, SNDCTL_DSP_HALT, NULL) < 0){
1389         LeaveCriticalSection(&This->lock);
1390         WARN("HALT failed: %d (%s)\n", errno, strerror(errno));
1391         return E_FAIL;
1392     }
1393
1394     mask = 0;
1395     if(ioctl(This->fd, SNDCTL_DSP_SETTRIGGER, &mask) < 0){
1396         LeaveCriticalSection(&This->lock);
1397         WARN("SETTRIGGER failed: %d (%s)\n", errno, strerror(errno));
1398         return E_FAIL;
1399     }
1400
1401     This->playing = FALSE;
1402
1403     LeaveCriticalSection(&This->lock);
1404
1405     return S_OK;
1406 }
1407
1408 static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
1409 {
1410     ACImpl *This = impl_from_IAudioClient(iface);
1411
1412     TRACE("(%p)\n", This);
1413
1414     EnterCriticalSection(&This->lock);
1415
1416     if(!This->initted){
1417         LeaveCriticalSection(&This->lock);
1418         return AUDCLNT_E_NOT_INITIALIZED;
1419     }
1420
1421     if(This->playing){
1422         LeaveCriticalSection(&This->lock);
1423         return AUDCLNT_E_NOT_STOPPED;
1424     }
1425
1426     if(This->buf_state != NOT_LOCKED){
1427         LeaveCriticalSection(&This->lock);
1428         return AUDCLNT_E_BUFFER_OPERATION_PENDING;
1429     }
1430
1431     This->written_frames = 0;
1432     This->inbuf_frames = 0;
1433     This->held_frames = 0;
1434
1435     if(ioctl(This->fd, SNDCTL_DSP_SKIP, NULL) < 0)
1436         WARN("SKIP failed: %d (%s)\n", errno, strerror(errno));
1437
1438     LeaveCriticalSection(&This->lock);
1439
1440     return S_OK;
1441 }
1442
1443 static HRESULT WINAPI AudioClient_SetEventHandle(IAudioClient *iface,
1444         HANDLE event)
1445 {
1446     ACImpl *This = impl_from_IAudioClient(iface);
1447
1448     TRACE("(%p)->(%p)\n", This, event);
1449
1450     if(!event)
1451         return E_INVALIDARG;
1452
1453     EnterCriticalSection(&This->lock);
1454
1455     if(!This->initted){
1456         LeaveCriticalSection(&This->lock);
1457         return AUDCLNT_E_NOT_INITIALIZED;
1458     }
1459
1460     if(!(This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK)){
1461         LeaveCriticalSection(&This->lock);
1462         return AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED;
1463     }
1464
1465     This->event = event;
1466
1467     LeaveCriticalSection(&This->lock);
1468
1469     return S_OK;
1470 }
1471
1472 static HRESULT WINAPI AudioClient_GetService(IAudioClient *iface, REFIID riid,
1473         void **ppv)
1474 {
1475     ACImpl *This = impl_from_IAudioClient(iface);
1476
1477     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
1478
1479     if(!ppv)
1480         return E_POINTER;
1481     *ppv = NULL;
1482
1483     EnterCriticalSection(&This->lock);
1484
1485     if(!This->initted){
1486         LeaveCriticalSection(&This->lock);
1487         return AUDCLNT_E_NOT_INITIALIZED;
1488     }
1489
1490     if(IsEqualIID(riid, &IID_IAudioRenderClient)){
1491         if(This->dataflow != eRender){
1492             LeaveCriticalSection(&This->lock);
1493             return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
1494         }
1495         IAudioRenderClient_AddRef(&This->IAudioRenderClient_iface);
1496         *ppv = &This->IAudioRenderClient_iface;
1497     }else if(IsEqualIID(riid, &IID_IAudioCaptureClient)){
1498         if(This->dataflow != eCapture){
1499             LeaveCriticalSection(&This->lock);
1500             return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
1501         }
1502         IAudioCaptureClient_AddRef(&This->IAudioCaptureClient_iface);
1503         *ppv = &This->IAudioCaptureClient_iface;
1504     }else if(IsEqualIID(riid, &IID_IAudioClock)){
1505         IAudioClock_AddRef(&This->IAudioClock_iface);
1506         *ppv = &This->IAudioClock_iface;
1507     }else if(IsEqualIID(riid, &IID_IAudioStreamVolume)){
1508         IAudioStreamVolume_AddRef(&This->IAudioStreamVolume_iface);
1509         *ppv = &This->IAudioStreamVolume_iface;
1510     }else if(IsEqualIID(riid, &IID_IAudioSessionControl)){
1511         if(!This->session_wrapper){
1512             This->session_wrapper = AudioSessionWrapper_Create(This);
1513             if(!This->session_wrapper){
1514                 LeaveCriticalSection(&This->lock);
1515                 return E_OUTOFMEMORY;
1516             }
1517         }else
1518             IAudioSessionControl2_AddRef(&This->session_wrapper->IAudioSessionControl2_iface);
1519
1520         *ppv = &This->session_wrapper->IAudioSessionControl2_iface;
1521     }else if(IsEqualIID(riid, &IID_IChannelAudioVolume)){
1522         if(!This->session_wrapper){
1523             This->session_wrapper = AudioSessionWrapper_Create(This);
1524             if(!This->session_wrapper){
1525                 LeaveCriticalSection(&This->lock);
1526                 return E_OUTOFMEMORY;
1527             }
1528         }else
1529             IChannelAudioVolume_AddRef(&This->session_wrapper->IChannelAudioVolume_iface);
1530
1531         *ppv = &This->session_wrapper->IChannelAudioVolume_iface;
1532     }else if(IsEqualIID(riid, &IID_ISimpleAudioVolume)){
1533         if(!This->session_wrapper){
1534             This->session_wrapper = AudioSessionWrapper_Create(This);
1535             if(!This->session_wrapper){
1536                 LeaveCriticalSection(&This->lock);
1537                 return E_OUTOFMEMORY;
1538             }
1539         }else
1540             ISimpleAudioVolume_AddRef(&This->session_wrapper->ISimpleAudioVolume_iface);
1541
1542         *ppv = &This->session_wrapper->ISimpleAudioVolume_iface;
1543     }
1544
1545     if(*ppv){
1546         LeaveCriticalSection(&This->lock);
1547         return S_OK;
1548     }
1549
1550     LeaveCriticalSection(&This->lock);
1551
1552     FIXME("stub %s\n", debugstr_guid(riid));
1553     return E_NOINTERFACE;
1554 }
1555
1556 static const IAudioClientVtbl AudioClient_Vtbl =
1557 {
1558     AudioClient_QueryInterface,
1559     AudioClient_AddRef,
1560     AudioClient_Release,
1561     AudioClient_Initialize,
1562     AudioClient_GetBufferSize,
1563     AudioClient_GetStreamLatency,
1564     AudioClient_GetCurrentPadding,
1565     AudioClient_IsFormatSupported,
1566     AudioClient_GetMixFormat,
1567     AudioClient_GetDevicePeriod,
1568     AudioClient_Start,
1569     AudioClient_Stop,
1570     AudioClient_Reset,
1571     AudioClient_SetEventHandle,
1572     AudioClient_GetService
1573 };
1574
1575 static HRESULT WINAPI AudioRenderClient_QueryInterface(
1576         IAudioRenderClient *iface, REFIID riid, void **ppv)
1577 {
1578     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
1579
1580     if(!ppv)
1581         return E_POINTER;
1582     *ppv = NULL;
1583
1584     if(IsEqualIID(riid, &IID_IUnknown) ||
1585             IsEqualIID(riid, &IID_IAudioRenderClient))
1586         *ppv = iface;
1587     if(*ppv){
1588         IUnknown_AddRef((IUnknown*)*ppv);
1589         return S_OK;
1590     }
1591
1592     WARN("Unknown interface %s\n", debugstr_guid(riid));
1593     return E_NOINTERFACE;
1594 }
1595
1596 static ULONG WINAPI AudioRenderClient_AddRef(IAudioRenderClient *iface)
1597 {
1598     ACImpl *This = impl_from_IAudioRenderClient(iface);
1599     return AudioClient_AddRef(&This->IAudioClient_iface);
1600 }
1601
1602 static ULONG WINAPI AudioRenderClient_Release(IAudioRenderClient *iface)
1603 {
1604     ACImpl *This = impl_from_IAudioRenderClient(iface);
1605     return AudioClient_Release(&This->IAudioClient_iface);
1606 }
1607
1608 static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
1609         UINT32 frames, BYTE **data)
1610 {
1611     ACImpl *This = impl_from_IAudioRenderClient(iface);
1612     UINT32 pad, write_pos;
1613     HRESULT hr;
1614
1615     TRACE("(%p)->(%u, %p)\n", This, frames, data);
1616
1617     if(!data)
1618         return E_POINTER;
1619
1620     EnterCriticalSection(&This->lock);
1621
1622     if(This->buf_state != NOT_LOCKED){
1623         LeaveCriticalSection(&This->lock);
1624         return AUDCLNT_E_OUT_OF_ORDER;
1625     }
1626
1627     if(!frames){
1628         This->buf_state = LOCKED_NORMAL;
1629         LeaveCriticalSection(&This->lock);
1630         return S_OK;
1631     }
1632
1633     hr = IAudioClient_GetCurrentPadding(&This->IAudioClient_iface, &pad);
1634     if(FAILED(hr)){
1635         LeaveCriticalSection(&This->lock);
1636         return hr;
1637     }
1638
1639     if(pad + frames > This->bufsize_frames){
1640         LeaveCriticalSection(&This->lock);
1641         return AUDCLNT_E_BUFFER_TOO_LARGE;
1642     }
1643
1644     write_pos =
1645         (This->lcl_offs_frames + This->held_frames) % This->bufsize_frames;
1646     if(write_pos + frames > This->bufsize_frames){
1647         if(This->tmp_buffer_frames < frames){
1648             if(This->tmp_buffer)
1649                 This->tmp_buffer = HeapReAlloc(GetProcessHeap(), 0,
1650                         This->tmp_buffer, frames * This->fmt->nBlockAlign);
1651             else
1652                 This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
1653                         frames * This->fmt->nBlockAlign);
1654             if(!This->tmp_buffer){
1655                 LeaveCriticalSection(&This->lock);
1656                 return E_OUTOFMEMORY;
1657             }
1658             This->tmp_buffer_frames = frames;
1659         }
1660         *data = This->tmp_buffer;
1661         This->buf_state = LOCKED_WRAPPED;
1662     }else{
1663         *data = This->local_buffer + write_pos * This->fmt->nBlockAlign;
1664         This->buf_state = LOCKED_NORMAL;
1665     }
1666
1667     LeaveCriticalSection(&This->lock);
1668
1669     return S_OK;
1670 }
1671
1672 static void oss_wrap_buffer(ACImpl *This, BYTE *buffer, UINT32 written_frames)
1673 {
1674     UINT32 write_offs_frames =
1675         (This->lcl_offs_frames + This->held_frames) % This->bufsize_frames;
1676     UINT32 write_offs_bytes = write_offs_frames * This->fmt->nBlockAlign;
1677     UINT32 chunk_frames = This->bufsize_frames - write_offs_frames;
1678     UINT32 chunk_bytes = chunk_frames * This->fmt->nBlockAlign;
1679     UINT32 written_bytes = written_frames * This->fmt->nBlockAlign;
1680
1681     if(written_bytes <= chunk_bytes){
1682         memcpy(This->local_buffer + write_offs_bytes, buffer, written_bytes);
1683     }else{
1684         memcpy(This->local_buffer + write_offs_bytes, buffer, chunk_bytes);
1685         memcpy(This->local_buffer, buffer + chunk_bytes,
1686                 written_bytes - chunk_bytes);
1687     }
1688 }
1689
1690 static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
1691         IAudioRenderClient *iface, UINT32 written_frames, DWORD flags)
1692 {
1693     ACImpl *This = impl_from_IAudioRenderClient(iface);
1694     BYTE *buffer;
1695
1696     TRACE("(%p)->(%u, %x)\n", This, written_frames, flags);
1697
1698     EnterCriticalSection(&This->lock);
1699
1700     if(This->buf_state == NOT_LOCKED || !written_frames){
1701         This->buf_state = NOT_LOCKED;
1702         LeaveCriticalSection(&This->lock);
1703         return written_frames ? AUDCLNT_E_OUT_OF_ORDER : S_OK;
1704     }
1705
1706     if(This->buf_state == LOCKED_NORMAL)
1707         buffer = This->local_buffer + This->fmt->nBlockAlign *
1708           ((This->lcl_offs_frames + This->held_frames) % This->bufsize_frames);
1709     else
1710         buffer = This->tmp_buffer;
1711
1712     if(flags & AUDCLNT_BUFFERFLAGS_SILENT)
1713         oss_silence_buffer(This, buffer, written_frames);
1714
1715     if(This->held_frames){
1716         if(This->buf_state == LOCKED_WRAPPED)
1717             oss_wrap_buffer(This, buffer, written_frames);
1718
1719         This->held_frames += written_frames;
1720     }else{
1721         ssize_t w_bytes;
1722         UINT32 w_frames;
1723
1724         if(This->session->mute)
1725             oss_silence_buffer(This, buffer, written_frames);
1726
1727         w_bytes = write(This->fd, buffer,
1728                 written_frames * This->fmt->nBlockAlign);
1729         if(w_bytes < 0){
1730             if(errno != EAGAIN){
1731                 This->buf_state = NOT_LOCKED;
1732                 LeaveCriticalSection(&This->lock);
1733                 ERR("write failed: %d (%s)\n", errno, strerror(errno));
1734                 return E_FAIL;
1735             }else /* OSS buffer full */
1736                 w_bytes = 0;
1737         }
1738         w_frames = w_bytes / This->fmt->nBlockAlign;
1739         This->inbuf_frames += w_frames;
1740
1741         if(w_frames < written_frames){
1742             if(This->buf_state == LOCKED_WRAPPED)
1743                 oss_wrap_buffer(This, This->tmp_buffer + w_bytes,
1744                         written_frames - w_frames);
1745             else
1746                 This->lcl_offs_frames += w_frames;
1747             This->held_frames = written_frames - w_frames;
1748         }
1749     }
1750
1751     This->written_frames += written_frames;
1752     This->buf_state = NOT_LOCKED;
1753
1754     LeaveCriticalSection(&This->lock);
1755
1756     return S_OK;
1757 }
1758
1759 static const IAudioRenderClientVtbl AudioRenderClient_Vtbl = {
1760     AudioRenderClient_QueryInterface,
1761     AudioRenderClient_AddRef,
1762     AudioRenderClient_Release,
1763     AudioRenderClient_GetBuffer,
1764     AudioRenderClient_ReleaseBuffer
1765 };
1766
1767 static HRESULT WINAPI AudioCaptureClient_QueryInterface(
1768         IAudioCaptureClient *iface, REFIID riid, void **ppv)
1769 {
1770     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
1771
1772     if(!ppv)
1773         return E_POINTER;
1774     *ppv = NULL;
1775
1776     if(IsEqualIID(riid, &IID_IUnknown) ||
1777             IsEqualIID(riid, &IID_IAudioCaptureClient))
1778         *ppv = iface;
1779     if(*ppv){
1780         IUnknown_AddRef((IUnknown*)*ppv);
1781         return S_OK;
1782     }
1783
1784     WARN("Unknown interface %s\n", debugstr_guid(riid));
1785     return E_NOINTERFACE;
1786 }
1787
1788 static ULONG WINAPI AudioCaptureClient_AddRef(IAudioCaptureClient *iface)
1789 {
1790     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1791     return IAudioClient_AddRef(&This->IAudioClient_iface);
1792 }
1793
1794 static ULONG WINAPI AudioCaptureClient_Release(IAudioCaptureClient *iface)
1795 {
1796     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1797     return IAudioClient_Release(&This->IAudioClient_iface);
1798 }
1799
1800 static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
1801         BYTE **data, UINT32 *frames, DWORD *flags, UINT64 *devpos,
1802         UINT64 *qpcpos)
1803 {
1804     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1805     HRESULT hr;
1806
1807     TRACE("(%p)->(%p, %p, %p, %p, %p)\n", This, data, frames, flags,
1808             devpos, qpcpos);
1809
1810     if(!data || !frames || !flags)
1811         return E_POINTER;
1812
1813     EnterCriticalSection(&This->lock);
1814
1815     if(This->buf_state != NOT_LOCKED){
1816         LeaveCriticalSection(&This->lock);
1817         return AUDCLNT_E_OUT_OF_ORDER;
1818     }
1819
1820     hr = IAudioCaptureClient_GetNextPacketSize(iface, frames);
1821     if(FAILED(hr)){
1822         LeaveCriticalSection(&This->lock);
1823         return hr;
1824     }
1825
1826     *flags = 0;
1827
1828     if(This->lcl_offs_frames + *frames > This->bufsize_frames){
1829         UINT32 chunk_bytes, offs_bytes, frames_bytes;
1830         if(This->tmp_buffer_frames < *frames){
1831             if(This->tmp_buffer)
1832                 This->tmp_buffer = HeapReAlloc(GetProcessHeap(), 0,
1833                         This->tmp_buffer, *frames * This->fmt->nBlockAlign);
1834             else
1835                 This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
1836                         *frames * This->fmt->nBlockAlign);
1837             if(!This->tmp_buffer){
1838                 LeaveCriticalSection(&This->lock);
1839                 return E_OUTOFMEMORY;
1840             }
1841             This->tmp_buffer_frames = *frames;
1842         }
1843
1844         *data = This->tmp_buffer;
1845         chunk_bytes = (This->bufsize_frames - This->lcl_offs_frames) *
1846             This->fmt->nBlockAlign;
1847         offs_bytes = This->lcl_offs_frames * This->fmt->nBlockAlign;
1848         frames_bytes = *frames * This->fmt->nBlockAlign;
1849         memcpy(This->tmp_buffer, This->local_buffer + offs_bytes, chunk_bytes);
1850         memcpy(This->tmp_buffer, This->local_buffer,
1851                 frames_bytes - chunk_bytes);
1852     }else
1853         *data = This->local_buffer +
1854             This->lcl_offs_frames * This->fmt->nBlockAlign;
1855
1856     This->buf_state = LOCKED_NORMAL;
1857
1858     if(devpos || qpcpos)
1859         IAudioClock_GetPosition(&This->IAudioClock_iface, devpos, qpcpos);
1860
1861     LeaveCriticalSection(&This->lock);
1862
1863     return *frames ? S_OK : AUDCLNT_S_BUFFER_EMPTY;
1864 }
1865
1866 static HRESULT WINAPI AudioCaptureClient_ReleaseBuffer(
1867         IAudioCaptureClient *iface, UINT32 done)
1868 {
1869     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1870
1871     TRACE("(%p)->(%u)\n", This, done);
1872
1873     EnterCriticalSection(&This->lock);
1874
1875     if(This->buf_state == NOT_LOCKED){
1876         LeaveCriticalSection(&This->lock);
1877         return AUDCLNT_E_OUT_OF_ORDER;
1878     }
1879
1880     This->held_frames -= done;
1881     This->lcl_offs_frames += done;
1882     This->lcl_offs_frames %= This->bufsize_frames;
1883
1884     This->buf_state = NOT_LOCKED;
1885
1886     LeaveCriticalSection(&This->lock);
1887
1888     return S_OK;
1889 }
1890
1891 static HRESULT WINAPI AudioCaptureClient_GetNextPacketSize(
1892         IAudioCaptureClient *iface, UINT32 *frames)
1893 {
1894     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1895
1896     TRACE("(%p)->(%p)\n", This, frames);
1897
1898     return AudioClient_GetCurrentPadding(&This->IAudioClient_iface, frames);
1899 }
1900
1901 static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl =
1902 {
1903     AudioCaptureClient_QueryInterface,
1904     AudioCaptureClient_AddRef,
1905     AudioCaptureClient_Release,
1906     AudioCaptureClient_GetBuffer,
1907     AudioCaptureClient_ReleaseBuffer,
1908     AudioCaptureClient_GetNextPacketSize
1909 };
1910
1911 static HRESULT WINAPI AudioClock_QueryInterface(IAudioClock *iface,
1912         REFIID riid, void **ppv)
1913 {
1914     ACImpl *This = impl_from_IAudioClock(iface);
1915
1916     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
1917
1918     if(!ppv)
1919         return E_POINTER;
1920     *ppv = NULL;
1921
1922     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClock))
1923         *ppv = iface;
1924     else if(IsEqualIID(riid, &IID_IAudioClock2))
1925         *ppv = &This->IAudioClock2_iface;
1926     if(*ppv){
1927         IUnknown_AddRef((IUnknown*)*ppv);
1928         return S_OK;
1929     }
1930
1931     WARN("Unknown interface %s\n", debugstr_guid(riid));
1932     return E_NOINTERFACE;
1933 }
1934
1935 static ULONG WINAPI AudioClock_AddRef(IAudioClock *iface)
1936 {
1937     ACImpl *This = impl_from_IAudioClock(iface);
1938     return IAudioClient_AddRef(&This->IAudioClient_iface);
1939 }
1940
1941 static ULONG WINAPI AudioClock_Release(IAudioClock *iface)
1942 {
1943     ACImpl *This = impl_from_IAudioClock(iface);
1944     return IAudioClient_Release(&This->IAudioClient_iface);
1945 }
1946
1947 static HRESULT WINAPI AudioClock_GetFrequency(IAudioClock *iface, UINT64 *freq)
1948 {
1949     ACImpl *This = impl_from_IAudioClock(iface);
1950
1951     TRACE("(%p)->(%p)\n", This, freq);
1952
1953     *freq = This->fmt->nSamplesPerSec;
1954
1955     return S_OK;
1956 }
1957
1958 static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
1959         UINT64 *qpctime)
1960 {
1961     ACImpl *This = impl_from_IAudioClock(iface);
1962     UINT32 pad;
1963     HRESULT hr;
1964
1965     TRACE("(%p)->(%p, %p)\n", This, pos, qpctime);
1966
1967     if(!pos)
1968         return E_POINTER;
1969
1970     EnterCriticalSection(&This->lock);
1971
1972     hr = IAudioClient_GetCurrentPadding(&This->IAudioClient_iface, &pad);
1973     if(FAILED(hr)){
1974         LeaveCriticalSection(&This->lock);
1975         return hr;
1976     }
1977
1978     if(This->dataflow == eRender)
1979         *pos = This->written_frames - pad;
1980     else if(This->dataflow == eCapture)
1981         *pos = This->written_frames + pad;
1982
1983     LeaveCriticalSection(&This->lock);
1984
1985     if(qpctime){
1986         LARGE_INTEGER stamp, freq;
1987         QueryPerformanceCounter(&stamp);
1988         QueryPerformanceFrequency(&freq);
1989         *qpctime = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
1990     }
1991
1992     return S_OK;
1993 }
1994
1995 static HRESULT WINAPI AudioClock_GetCharacteristics(IAudioClock *iface,
1996         DWORD *chars)
1997 {
1998     ACImpl *This = impl_from_IAudioClock(iface);
1999
2000     TRACE("(%p)->(%p)\n", This, chars);
2001
2002     if(!chars)
2003         return E_POINTER;
2004
2005     *chars = AUDIOCLOCK_CHARACTERISTIC_FIXED_FREQ;
2006
2007     return S_OK;
2008 }
2009
2010 static const IAudioClockVtbl AudioClock_Vtbl =
2011 {
2012     AudioClock_QueryInterface,
2013     AudioClock_AddRef,
2014     AudioClock_Release,
2015     AudioClock_GetFrequency,
2016     AudioClock_GetPosition,
2017     AudioClock_GetCharacteristics
2018 };
2019
2020 static HRESULT WINAPI AudioClock2_QueryInterface(IAudioClock2 *iface,
2021         REFIID riid, void **ppv)
2022 {
2023     ACImpl *This = impl_from_IAudioClock2(iface);
2024     return IAudioClock_QueryInterface(&This->IAudioClock_iface, riid, ppv);
2025 }
2026
2027 static ULONG WINAPI AudioClock2_AddRef(IAudioClock2 *iface)
2028 {
2029     ACImpl *This = impl_from_IAudioClock2(iface);
2030     return IAudioClient_AddRef(&This->IAudioClient_iface);
2031 }
2032
2033 static ULONG WINAPI AudioClock2_Release(IAudioClock2 *iface)
2034 {
2035     ACImpl *This = impl_from_IAudioClock2(iface);
2036     return IAudioClient_Release(&This->IAudioClient_iface);
2037 }
2038
2039 static HRESULT WINAPI AudioClock2_GetDevicePosition(IAudioClock2 *iface,
2040         UINT64 *pos, UINT64 *qpctime)
2041 {
2042     ACImpl *This = impl_from_IAudioClock2(iface);
2043
2044     FIXME("(%p)->(%p, %p)\n", This, pos, qpctime);
2045
2046     return E_NOTIMPL;
2047 }
2048
2049 static const IAudioClock2Vtbl AudioClock2_Vtbl =
2050 {
2051     AudioClock2_QueryInterface,
2052     AudioClock2_AddRef,
2053     AudioClock2_Release,
2054     AudioClock2_GetDevicePosition
2055 };
2056
2057 static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client)
2058 {
2059     AudioSessionWrapper *ret;
2060
2061     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
2062             sizeof(AudioSessionWrapper));
2063     if(!ret)
2064         return NULL;
2065
2066     ret->IAudioSessionControl2_iface.lpVtbl = &AudioSessionControl2_Vtbl;
2067     ret->ISimpleAudioVolume_iface.lpVtbl = &SimpleAudioVolume_Vtbl;
2068     ret->IChannelAudioVolume_iface.lpVtbl = &ChannelAudioVolume_Vtbl;
2069
2070     ret->ref = 1;
2071
2072     ret->client = client;
2073     if(client){
2074         ret->session = client->session;
2075         AudioClient_AddRef(&client->IAudioClient_iface);
2076     }
2077
2078     return ret;
2079 }
2080
2081 static HRESULT WINAPI AudioSessionControl_QueryInterface(
2082         IAudioSessionControl2 *iface, REFIID riid, void **ppv)
2083 {
2084     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2085
2086     if(!ppv)
2087         return E_POINTER;
2088     *ppv = NULL;
2089
2090     if(IsEqualIID(riid, &IID_IUnknown) ||
2091             IsEqualIID(riid, &IID_IAudioSessionControl) ||
2092             IsEqualIID(riid, &IID_IAudioSessionControl2))
2093         *ppv = iface;
2094     if(*ppv){
2095         IUnknown_AddRef((IUnknown*)*ppv);
2096         return S_OK;
2097     }
2098
2099     WARN("Unknown interface %s\n", debugstr_guid(riid));
2100     return E_NOINTERFACE;
2101 }
2102
2103 static ULONG WINAPI AudioSessionControl_AddRef(IAudioSessionControl2 *iface)
2104 {
2105     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2106     ULONG ref;
2107     ref = InterlockedIncrement(&This->ref);
2108     TRACE("(%p) Refcount now %u\n", This, ref);
2109     return ref;
2110 }
2111
2112 static ULONG WINAPI AudioSessionControl_Release(IAudioSessionControl2 *iface)
2113 {
2114     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2115     ULONG ref;
2116     ref = InterlockedDecrement(&This->ref);
2117     TRACE("(%p) Refcount now %u\n", This, ref);
2118     if(!ref){
2119         if(This->client){
2120             EnterCriticalSection(&This->client->lock);
2121             This->client->session_wrapper = NULL;
2122             LeaveCriticalSection(&This->client->lock);
2123             AudioClient_Release(&This->client->IAudioClient_iface);
2124         }
2125         HeapFree(GetProcessHeap(), 0, This);
2126     }
2127     return ref;
2128 }
2129
2130 static HRESULT WINAPI AudioSessionControl_GetState(IAudioSessionControl2 *iface,
2131         AudioSessionState *state)
2132 {
2133     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2134     ACImpl *client;
2135
2136     TRACE("(%p)->(%p)\n", This, state);
2137
2138     if(!state)
2139         return NULL_PTR_ERR;
2140
2141     EnterCriticalSection(&g_sessions_lock);
2142
2143     if(list_empty(&This->session->clients)){
2144         *state = AudioSessionStateExpired;
2145         LeaveCriticalSection(&g_sessions_lock);
2146         return S_OK;
2147     }
2148
2149     LIST_FOR_EACH_ENTRY(client, &This->session->clients, ACImpl, entry){
2150         EnterCriticalSection(&client->lock);
2151         if(client->playing){
2152             *state = AudioSessionStateActive;
2153             LeaveCriticalSection(&client->lock);
2154             LeaveCriticalSection(&g_sessions_lock);
2155             return S_OK;
2156         }
2157         LeaveCriticalSection(&client->lock);
2158     }
2159
2160     LeaveCriticalSection(&g_sessions_lock);
2161
2162     *state = AudioSessionStateInactive;
2163
2164     return S_OK;
2165 }
2166
2167 static HRESULT WINAPI AudioSessionControl_GetDisplayName(
2168         IAudioSessionControl2 *iface, WCHAR **name)
2169 {
2170     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2171
2172     FIXME("(%p)->(%p) - stub\n", This, name);
2173
2174     return E_NOTIMPL;
2175 }
2176
2177 static HRESULT WINAPI AudioSessionControl_SetDisplayName(
2178         IAudioSessionControl2 *iface, const WCHAR *name, const GUID *session)
2179 {
2180     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2181
2182     FIXME("(%p)->(%p, %s) - stub\n", This, name, debugstr_guid(session));
2183
2184     return E_NOTIMPL;
2185 }
2186
2187 static HRESULT WINAPI AudioSessionControl_GetIconPath(
2188         IAudioSessionControl2 *iface, WCHAR **path)
2189 {
2190     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2191
2192     FIXME("(%p)->(%p) - stub\n", This, path);
2193
2194     return E_NOTIMPL;
2195 }
2196
2197 static HRESULT WINAPI AudioSessionControl_SetIconPath(
2198         IAudioSessionControl2 *iface, const WCHAR *path, const GUID *session)
2199 {
2200     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2201
2202     FIXME("(%p)->(%p, %s) - stub\n", This, path, debugstr_guid(session));
2203
2204     return E_NOTIMPL;
2205 }
2206
2207 static HRESULT WINAPI AudioSessionControl_GetGroupingParam(
2208         IAudioSessionControl2 *iface, GUID *group)
2209 {
2210     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2211
2212     FIXME("(%p)->(%p) - stub\n", This, group);
2213
2214     return E_NOTIMPL;
2215 }
2216
2217 static HRESULT WINAPI AudioSessionControl_SetGroupingParam(
2218         IAudioSessionControl2 *iface, const GUID *group, const GUID *session)
2219 {
2220     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2221
2222     FIXME("(%p)->(%s, %s) - stub\n", This, debugstr_guid(group),
2223             debugstr_guid(session));
2224
2225     return E_NOTIMPL;
2226 }
2227
2228 static HRESULT WINAPI AudioSessionControl_RegisterAudioSessionNotification(
2229         IAudioSessionControl2 *iface, IAudioSessionEvents *events)
2230 {
2231     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2232
2233     FIXME("(%p)->(%p) - stub\n", This, events);
2234
2235     return S_OK;
2236 }
2237
2238 static HRESULT WINAPI AudioSessionControl_UnregisterAudioSessionNotification(
2239         IAudioSessionControl2 *iface, IAudioSessionEvents *events)
2240 {
2241     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2242
2243     FIXME("(%p)->(%p) - stub\n", This, events);
2244
2245     return S_OK;
2246 }
2247
2248 static HRESULT WINAPI AudioSessionControl_GetSessionIdentifier(
2249         IAudioSessionControl2 *iface, WCHAR **id)
2250 {
2251     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2252
2253     FIXME("(%p)->(%p) - stub\n", This, id);
2254
2255     return E_NOTIMPL;
2256 }
2257
2258 static HRESULT WINAPI AudioSessionControl_GetSessionInstanceIdentifier(
2259         IAudioSessionControl2 *iface, WCHAR **id)
2260 {
2261     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2262
2263     FIXME("(%p)->(%p) - stub\n", This, id);
2264
2265     return E_NOTIMPL;
2266 }
2267
2268 static HRESULT WINAPI AudioSessionControl_GetProcessId(
2269         IAudioSessionControl2 *iface, DWORD *pid)
2270 {
2271     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2272
2273     TRACE("(%p)->(%p)\n", This, pid);
2274
2275     if(!pid)
2276         return E_POINTER;
2277
2278     *pid = GetCurrentProcessId();
2279
2280     return S_OK;
2281 }
2282
2283 static HRESULT WINAPI AudioSessionControl_IsSystemSoundsSession(
2284         IAudioSessionControl2 *iface)
2285 {
2286     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2287
2288     TRACE("(%p)\n", This);
2289
2290     return S_FALSE;
2291 }
2292
2293 static HRESULT WINAPI AudioSessionControl_SetDuckingPreference(
2294         IAudioSessionControl2 *iface, BOOL optout)
2295 {
2296     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2297
2298     TRACE("(%p)->(%d)\n", This, optout);
2299
2300     return S_OK;
2301 }
2302
2303 static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl =
2304 {
2305     AudioSessionControl_QueryInterface,
2306     AudioSessionControl_AddRef,
2307     AudioSessionControl_Release,
2308     AudioSessionControl_GetState,
2309     AudioSessionControl_GetDisplayName,
2310     AudioSessionControl_SetDisplayName,
2311     AudioSessionControl_GetIconPath,
2312     AudioSessionControl_SetIconPath,
2313     AudioSessionControl_GetGroupingParam,
2314     AudioSessionControl_SetGroupingParam,
2315     AudioSessionControl_RegisterAudioSessionNotification,
2316     AudioSessionControl_UnregisterAudioSessionNotification,
2317     AudioSessionControl_GetSessionIdentifier,
2318     AudioSessionControl_GetSessionInstanceIdentifier,
2319     AudioSessionControl_GetProcessId,
2320     AudioSessionControl_IsSystemSoundsSession,
2321     AudioSessionControl_SetDuckingPreference
2322 };
2323
2324 /* index == -1 means set all channels, otherwise sets only the given channel */
2325 static HRESULT oss_setvol(ACImpl *This, UINT32 index)
2326 {
2327     int setreq, getreq;
2328     unsigned int vol;
2329     unsigned short l;
2330     float level;
2331
2332     if(index == (UINT32)-1){
2333         HRESULT ret = S_OK;
2334         UINT32 i;
2335         for(i = 0; i < This->fmt->nChannels; ++i){
2336             HRESULT hr;
2337             hr = oss_setvol(This, i);
2338             if(FAILED(hr))
2339                 ret = hr;
2340         }
2341         return ret;
2342     }
2343
2344     if(index > 1)
2345         /* OSS doesn't support volume control past the first two channels */
2346         return S_OK;
2347
2348     if(This->dataflow == eRender){
2349         setreq = SNDCTL_DSP_SETPLAYVOL;
2350         getreq = SNDCTL_DSP_GETPLAYVOL;
2351     }else if(This->dataflow == eCapture){
2352         setreq = SNDCTL_DSP_SETRECVOL;
2353         getreq = SNDCTL_DSP_GETRECVOL;
2354     }else
2355         return E_UNEXPECTED;
2356
2357     if(ioctl(This->fd, getreq, &vol) < 0){
2358         if(errno == EINVAL)
2359             /* device doesn't support this call */
2360             return S_OK;
2361
2362         WARN("GET[REC|PLAY]VOL failed: %d (%s)\n", errno, strerror(errno));
2363         return E_FAIL;
2364     }
2365
2366     level = This->session->master_vol * This->session->channel_vols[index] *
2367         This->vols[index];
2368     l = level * 100;
2369     if(index == 0)
2370         vol = l | (vol & 0xFF00);
2371     else
2372         vol = (vol & 0xFF) | (l << 8);
2373
2374     if(ioctl(This->fd, setreq, &vol) < 0){
2375         if(errno == EINVAL)
2376             /* device doesn't support this call */
2377             return S_OK;
2378
2379         WARN("SET[REC|PLAY]VOL failed: %d (%s)\n", errno, strerror(errno));
2380         return E_FAIL;
2381     }
2382
2383     return S_OK;
2384 }
2385
2386 static HRESULT oss_session_setvol(AudioSession *session, UINT32 index)
2387 {
2388     HRESULT ret = S_OK;
2389     ACImpl *client;
2390
2391     LIST_FOR_EACH_ENTRY(client, &session->clients, ACImpl, entry){
2392         HRESULT hr;
2393         hr = oss_setvol(client, index);
2394         if(FAILED(hr))
2395             ret = hr;
2396     }
2397
2398     return ret;
2399 }
2400
2401 static HRESULT WINAPI SimpleAudioVolume_QueryInterface(
2402         ISimpleAudioVolume *iface, REFIID riid, void **ppv)
2403 {
2404     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2405
2406     if(!ppv)
2407         return E_POINTER;
2408     *ppv = NULL;
2409
2410     if(IsEqualIID(riid, &IID_IUnknown) ||
2411             IsEqualIID(riid, &IID_ISimpleAudioVolume))
2412         *ppv = iface;
2413     if(*ppv){
2414         IUnknown_AddRef((IUnknown*)*ppv);
2415         return S_OK;
2416     }
2417
2418     WARN("Unknown interface %s\n", debugstr_guid(riid));
2419     return E_NOINTERFACE;
2420 }
2421
2422 static ULONG WINAPI SimpleAudioVolume_AddRef(ISimpleAudioVolume *iface)
2423 {
2424     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2425     return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
2426 }
2427
2428 static ULONG WINAPI SimpleAudioVolume_Release(ISimpleAudioVolume *iface)
2429 {
2430     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2431     return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
2432 }
2433
2434 static HRESULT WINAPI SimpleAudioVolume_SetMasterVolume(
2435         ISimpleAudioVolume *iface, float level, const GUID *context)
2436 {
2437     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2438     AudioSession *session = This->session;
2439     HRESULT ret;
2440
2441     TRACE("(%p)->(%f, %s)\n", session, level, wine_dbgstr_guid(context));
2442
2443     if(level < 0.f || level > 1.f)
2444         return E_INVALIDARG;
2445
2446     if(context)
2447         FIXME("Notifications not supported yet\n");
2448
2449     EnterCriticalSection(&session->lock);
2450
2451     session->master_vol = level;
2452
2453     ret = oss_session_setvol(session, -1);
2454
2455     LeaveCriticalSection(&session->lock);
2456
2457     return ret;
2458 }
2459
2460 static HRESULT WINAPI SimpleAudioVolume_GetMasterVolume(
2461         ISimpleAudioVolume *iface, float *level)
2462 {
2463     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2464     AudioSession *session = This->session;
2465
2466     TRACE("(%p)->(%p)\n", session, level);
2467
2468     if(!level)
2469         return NULL_PTR_ERR;
2470
2471     *level = session->master_vol;
2472
2473     return S_OK;
2474 }
2475
2476 static HRESULT WINAPI SimpleAudioVolume_SetMute(ISimpleAudioVolume *iface,
2477         BOOL mute, const GUID *context)
2478 {
2479     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2480     AudioSession *session = This->session;
2481
2482     TRACE("(%p)->(%u, %p)\n", session, mute, context);
2483
2484     EnterCriticalSection(&session->lock);
2485
2486     if(!mute && session->mute){
2487         ACImpl *client;
2488
2489         session->mute = mute;
2490
2491         LIST_FOR_EACH_ENTRY(client, &session->clients, ACImpl, entry){
2492             EnterCriticalSection(&client->lock);
2493             if(ioctl(client->fd, SNDCTL_DSP_SKIP) < 0)
2494                 WARN("Error calling DSP_SKIP: %d (%s)\n", errno,
2495                         strerror(errno));
2496             oss_write_data(client);
2497             LeaveCriticalSection(&client->lock);
2498         }
2499     }else
2500         session->mute = mute;
2501
2502     LeaveCriticalSection(&session->lock);
2503
2504     return S_OK;
2505 }
2506
2507 static HRESULT WINAPI SimpleAudioVolume_GetMute(ISimpleAudioVolume *iface,
2508         BOOL *mute)
2509 {
2510     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2511     AudioSession *session = This->session;
2512
2513     TRACE("(%p)->(%p)\n", session, mute);
2514
2515     if(!mute)
2516         return NULL_PTR_ERR;
2517
2518     *mute = This->session->mute;
2519
2520     return S_OK;
2521 }
2522
2523 static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl  =
2524 {
2525     SimpleAudioVolume_QueryInterface,
2526     SimpleAudioVolume_AddRef,
2527     SimpleAudioVolume_Release,
2528     SimpleAudioVolume_SetMasterVolume,
2529     SimpleAudioVolume_GetMasterVolume,
2530     SimpleAudioVolume_SetMute,
2531     SimpleAudioVolume_GetMute
2532 };
2533
2534 static HRESULT WINAPI AudioStreamVolume_QueryInterface(
2535         IAudioStreamVolume *iface, REFIID riid, void **ppv)
2536 {
2537     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2538
2539     if(!ppv)
2540         return E_POINTER;
2541     *ppv = NULL;
2542
2543     if(IsEqualIID(riid, &IID_IUnknown) ||
2544             IsEqualIID(riid, &IID_IAudioStreamVolume))
2545         *ppv = iface;
2546     if(*ppv){
2547         IUnknown_AddRef((IUnknown*)*ppv);
2548         return S_OK;
2549     }
2550
2551     WARN("Unknown interface %s\n", debugstr_guid(riid));
2552     return E_NOINTERFACE;
2553 }
2554
2555 static ULONG WINAPI AudioStreamVolume_AddRef(IAudioStreamVolume *iface)
2556 {
2557     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2558     return IAudioClient_AddRef(&This->IAudioClient_iface);
2559 }
2560
2561 static ULONG WINAPI AudioStreamVolume_Release(IAudioStreamVolume *iface)
2562 {
2563     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2564     return IAudioClient_Release(&This->IAudioClient_iface);
2565 }
2566
2567 static HRESULT WINAPI AudioStreamVolume_GetChannelCount(
2568         IAudioStreamVolume *iface, UINT32 *out)
2569 {
2570     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2571
2572     TRACE("(%p)->(%p)\n", This, out);
2573
2574     if(!out)
2575         return E_POINTER;
2576
2577     *out = This->fmt->nChannels;
2578
2579     return S_OK;
2580 }
2581
2582 static HRESULT WINAPI AudioStreamVolume_SetChannelVolume(
2583         IAudioStreamVolume *iface, UINT32 index, float level)
2584 {
2585     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2586     HRESULT ret;
2587
2588     TRACE("(%p)->(%d, %f)\n", This, index, level);
2589
2590     if(level < 0.f || level > 1.f)
2591         return E_INVALIDARG;
2592
2593     if(index >= This->fmt->nChannels)
2594         return E_INVALIDARG;
2595
2596     EnterCriticalSection(&This->lock);
2597
2598     This->vols[index] = level;
2599
2600     ret = oss_setvol(This, index);
2601
2602     LeaveCriticalSection(&This->lock);
2603
2604     return ret;
2605 }
2606
2607 static HRESULT WINAPI AudioStreamVolume_GetChannelVolume(
2608         IAudioStreamVolume *iface, UINT32 index, float *level)
2609 {
2610     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2611
2612     TRACE("(%p)->(%d, %p)\n", This, index, level);
2613
2614     if(!level)
2615         return E_POINTER;
2616
2617     if(index >= This->fmt->nChannels)
2618         return E_INVALIDARG;
2619
2620     *level = This->vols[index];
2621
2622     return S_OK;
2623 }
2624
2625 static HRESULT WINAPI AudioStreamVolume_SetAllVolumes(
2626         IAudioStreamVolume *iface, UINT32 count, const float *levels)
2627 {
2628     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2629     int i;
2630     HRESULT ret;
2631
2632     TRACE("(%p)->(%d, %p)\n", This, count, levels);
2633
2634     if(!levels)
2635         return E_POINTER;
2636
2637     if(count != This->fmt->nChannels)
2638         return E_INVALIDARG;
2639
2640     EnterCriticalSection(&This->lock);
2641
2642     for(i = 0; i < count; ++i)
2643         This->vols[i] = levels[i];
2644
2645     ret = oss_setvol(This, -1);
2646
2647     LeaveCriticalSection(&This->lock);
2648
2649     return ret;
2650 }
2651
2652 static HRESULT WINAPI AudioStreamVolume_GetAllVolumes(
2653         IAudioStreamVolume *iface, UINT32 count, float *levels)
2654 {
2655     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2656     int i;
2657
2658     TRACE("(%p)->(%d, %p)\n", This, count, levels);
2659
2660     if(!levels)
2661         return E_POINTER;
2662
2663     if(count != This->fmt->nChannels)
2664         return E_INVALIDARG;
2665
2666     EnterCriticalSection(&This->lock);
2667
2668     for(i = 0; i < count; ++i)
2669         levels[i] = This->vols[i];
2670
2671     LeaveCriticalSection(&This->lock);
2672
2673     return S_OK;
2674 }
2675
2676 static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl =
2677 {
2678     AudioStreamVolume_QueryInterface,
2679     AudioStreamVolume_AddRef,
2680     AudioStreamVolume_Release,
2681     AudioStreamVolume_GetChannelCount,
2682     AudioStreamVolume_SetChannelVolume,
2683     AudioStreamVolume_GetChannelVolume,
2684     AudioStreamVolume_SetAllVolumes,
2685     AudioStreamVolume_GetAllVolumes
2686 };
2687
2688 static HRESULT WINAPI ChannelAudioVolume_QueryInterface(
2689         IChannelAudioVolume *iface, REFIID riid, void **ppv)
2690 {
2691     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2692
2693     if(!ppv)
2694         return E_POINTER;
2695     *ppv = NULL;
2696
2697     if(IsEqualIID(riid, &IID_IUnknown) ||
2698             IsEqualIID(riid, &IID_IChannelAudioVolume))
2699         *ppv = iface;
2700     if(*ppv){
2701         IUnknown_AddRef((IUnknown*)*ppv);
2702         return S_OK;
2703     }
2704
2705     WARN("Unknown interface %s\n", debugstr_guid(riid));
2706     return E_NOINTERFACE;
2707 }
2708
2709 static ULONG WINAPI ChannelAudioVolume_AddRef(IChannelAudioVolume *iface)
2710 {
2711     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2712     return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
2713 }
2714
2715 static ULONG WINAPI ChannelAudioVolume_Release(IChannelAudioVolume *iface)
2716 {
2717     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2718     return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
2719 }
2720
2721 static HRESULT WINAPI ChannelAudioVolume_GetChannelCount(
2722         IChannelAudioVolume *iface, UINT32 *out)
2723 {
2724     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2725     AudioSession *session = This->session;
2726
2727     TRACE("(%p)->(%p)\n", session, out);
2728
2729     if(!out)
2730         return NULL_PTR_ERR;
2731
2732     *out = session->channel_count;
2733
2734     return S_OK;
2735 }
2736
2737 static HRESULT WINAPI ChannelAudioVolume_SetChannelVolume(
2738         IChannelAudioVolume *iface, UINT32 index, float level,
2739         const GUID *context)
2740 {
2741     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2742     AudioSession *session = This->session;
2743     HRESULT ret;
2744
2745     TRACE("(%p)->(%d, %f, %s)\n", session, index, level,
2746             wine_dbgstr_guid(context));
2747
2748     if(level < 0.f || level > 1.f)
2749         return E_INVALIDARG;
2750
2751     if(index >= session->channel_count)
2752         return E_INVALIDARG;
2753
2754     if(context)
2755         FIXME("Notifications not supported yet\n");
2756
2757     EnterCriticalSection(&session->lock);
2758
2759     session->channel_vols[index] = level;
2760
2761     ret = oss_session_setvol(session, index);
2762
2763     LeaveCriticalSection(&session->lock);
2764
2765     return ret;
2766 }
2767
2768 static HRESULT WINAPI ChannelAudioVolume_GetChannelVolume(
2769         IChannelAudioVolume *iface, UINT32 index, float *level)
2770 {
2771     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2772     AudioSession *session = This->session;
2773
2774     TRACE("(%p)->(%d, %p)\n", session, index, level);
2775
2776     if(!level)
2777         return NULL_PTR_ERR;
2778
2779     if(index >= session->channel_count)
2780         return E_INVALIDARG;
2781
2782     *level = session->channel_vols[index];
2783
2784     return S_OK;
2785 }
2786
2787 static HRESULT WINAPI ChannelAudioVolume_SetAllVolumes(
2788         IChannelAudioVolume *iface, UINT32 count, const float *levels,
2789         const GUID *context)
2790 {
2791     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2792     AudioSession *session = This->session;
2793     int i;
2794     HRESULT ret;
2795
2796     TRACE("(%p)->(%d, %p, %s)\n", session, count, levels,
2797             wine_dbgstr_guid(context));
2798
2799     if(!levels)
2800         return NULL_PTR_ERR;
2801
2802     if(count != session->channel_count)
2803         return E_INVALIDARG;
2804
2805     if(context)
2806         FIXME("Notifications not supported yet\n");
2807
2808     EnterCriticalSection(&session->lock);
2809
2810     for(i = 0; i < count; ++i)
2811         session->channel_vols[i] = levels[i];
2812
2813     ret = oss_session_setvol(session, -1);
2814
2815     LeaveCriticalSection(&session->lock);
2816
2817     return ret;
2818 }
2819
2820 static HRESULT WINAPI ChannelAudioVolume_GetAllVolumes(
2821         IChannelAudioVolume *iface, UINT32 count, float *levels)
2822 {
2823     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2824     AudioSession *session = This->session;
2825     int i;
2826
2827     TRACE("(%p)->(%d, %p)\n", session, count, levels);
2828
2829     if(!levels)
2830         return NULL_PTR_ERR;
2831
2832     if(count != session->channel_count)
2833         return E_INVALIDARG;
2834
2835     for(i = 0; i < count; ++i)
2836         levels[i] = session->channel_vols[i];
2837
2838     return S_OK;
2839 }
2840
2841 static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl =
2842 {
2843     ChannelAudioVolume_QueryInterface,
2844     ChannelAudioVolume_AddRef,
2845     ChannelAudioVolume_Release,
2846     ChannelAudioVolume_GetChannelCount,
2847     ChannelAudioVolume_SetChannelVolume,
2848     ChannelAudioVolume_GetChannelVolume,
2849     ChannelAudioVolume_SetAllVolumes,
2850     ChannelAudioVolume_GetAllVolumes
2851 };
2852
2853 static HRESULT WINAPI AudioSessionManager_QueryInterface(IAudioSessionManager2 *iface,
2854         REFIID riid, void **ppv)
2855 {
2856     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2857
2858     if(!ppv)
2859         return E_POINTER;
2860     *ppv = NULL;
2861
2862     if(IsEqualIID(riid, &IID_IUnknown) ||
2863             IsEqualIID(riid, &IID_IAudioSessionManager) ||
2864             IsEqualIID(riid, &IID_IAudioSessionManager2))
2865         *ppv = iface;
2866     if(*ppv){
2867         IUnknown_AddRef((IUnknown*)*ppv);
2868         return S_OK;
2869     }
2870
2871     WARN("Unknown interface %s\n", debugstr_guid(riid));
2872     return E_NOINTERFACE;
2873 }
2874
2875 static ULONG WINAPI AudioSessionManager_AddRef(IAudioSessionManager2 *iface)
2876 {
2877     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2878     ULONG ref;
2879     ref = InterlockedIncrement(&This->ref);
2880     TRACE("(%p) Refcount now %u\n", This, ref);
2881     return ref;
2882 }
2883
2884 static ULONG WINAPI AudioSessionManager_Release(IAudioSessionManager2 *iface)
2885 {
2886     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2887     ULONG ref;
2888     ref = InterlockedDecrement(&This->ref);
2889     TRACE("(%p) Refcount now %u\n", This, ref);
2890     if(!ref)
2891         HeapFree(GetProcessHeap(), 0, This);
2892     return ref;
2893 }
2894
2895 static HRESULT WINAPI AudioSessionManager_GetAudioSessionControl(
2896         IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
2897         IAudioSessionControl **out)
2898 {
2899     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2900     AudioSession *session;
2901     AudioSessionWrapper *wrapper;
2902     HRESULT hr;
2903
2904     TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
2905             flags, out);
2906
2907     hr = get_audio_session(session_guid, This->device, 0, &session);
2908     if(FAILED(hr))
2909         return hr;
2910
2911     wrapper = AudioSessionWrapper_Create(NULL);
2912     if(!wrapper)
2913         return E_OUTOFMEMORY;
2914
2915     wrapper->session = session;
2916
2917     *out = (IAudioSessionControl*)&wrapper->IAudioSessionControl2_iface;
2918
2919     return S_OK;
2920 }
2921
2922 static HRESULT WINAPI AudioSessionManager_GetSimpleAudioVolume(
2923         IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
2924         ISimpleAudioVolume **out)
2925 {
2926     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2927     AudioSession *session;
2928     AudioSessionWrapper *wrapper;
2929     HRESULT hr;
2930
2931     TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
2932             flags, out);
2933
2934     hr = get_audio_session(session_guid, This->device, 0, &session);
2935     if(FAILED(hr))
2936         return hr;
2937
2938     wrapper = AudioSessionWrapper_Create(NULL);
2939     if(!wrapper)
2940         return E_OUTOFMEMORY;
2941
2942     wrapper->session = session;
2943
2944     *out = &wrapper->ISimpleAudioVolume_iface;
2945
2946     return S_OK;
2947 }
2948
2949 static HRESULT WINAPI AudioSessionManager_GetSessionEnumerator(
2950         IAudioSessionManager2 *iface, IAudioSessionEnumerator **out)
2951 {
2952     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2953     FIXME("(%p)->(%p) - stub\n", This, out);
2954     return E_NOTIMPL;
2955 }
2956
2957 static HRESULT WINAPI AudioSessionManager_RegisterSessionNotification(
2958         IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
2959 {
2960     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2961     FIXME("(%p)->(%p) - stub\n", This, notification);
2962     return E_NOTIMPL;
2963 }
2964
2965 static HRESULT WINAPI AudioSessionManager_UnregisterSessionNotification(
2966         IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
2967 {
2968     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2969     FIXME("(%p)->(%p) - stub\n", This, notification);
2970     return E_NOTIMPL;
2971 }
2972
2973 static HRESULT WINAPI AudioSessionManager_RegisterDuckNotification(
2974         IAudioSessionManager2 *iface, const WCHAR *session_id,
2975         IAudioVolumeDuckNotification *notification)
2976 {
2977     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2978     FIXME("(%p)->(%p) - stub\n", This, notification);
2979     return E_NOTIMPL;
2980 }
2981
2982 static HRESULT WINAPI AudioSessionManager_UnregisterDuckNotification(
2983         IAudioSessionManager2 *iface,
2984         IAudioVolumeDuckNotification *notification)
2985 {
2986     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
2987     FIXME("(%p)->(%p) - stub\n", This, notification);
2988     return E_NOTIMPL;
2989 }
2990
2991 static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl =
2992 {
2993     AudioSessionManager_QueryInterface,
2994     AudioSessionManager_AddRef,
2995     AudioSessionManager_Release,
2996     AudioSessionManager_GetAudioSessionControl,
2997     AudioSessionManager_GetSimpleAudioVolume,
2998     AudioSessionManager_GetSessionEnumerator,
2999     AudioSessionManager_RegisterSessionNotification,
3000     AudioSessionManager_UnregisterSessionNotification,
3001     AudioSessionManager_RegisterDuckNotification,
3002     AudioSessionManager_UnregisterDuckNotification
3003 };
3004
3005 HRESULT WINAPI AUDDRV_GetAudioSessionManager(IMMDevice *device,
3006         IAudioSessionManager2 **out)
3007 {
3008     SessionMgr *This;
3009
3010     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SessionMgr));
3011     if(!This)
3012         return E_OUTOFMEMORY;
3013
3014     This->IAudioSessionManager2_iface.lpVtbl = &AudioSessionManager2_Vtbl;
3015     This->device = device;
3016     This->ref = 1;
3017
3018     *out = &This->IAudioSessionManager2_iface;
3019
3020     return S_OK;
3021 }