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 WINE_DEFAULT_DEBUG_CHANNEL(oss);
  57
  58 #define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
  59
  60 static const REFERENCE_TIME DefaultPeriod = 100000;
  61 static const REFERENCE_TIME MinimumPeriod = 50000;
  62
  63 struct ACImpl;
  64 typedef struct ACImpl ACImpl;
  65
  66 typedef struct _AudioSession {
  67     GUID guid;
  68     struct list clients;
  69
  70     IMMDevice *device;
  71
  72     float master_vol;
  73     UINT32 channel_count;
  74     float *channel_vols;
  75     BOOL mute;
  76
  77     CRITICAL_SECTION lock;
  78
  79     struct list entry;
  80 } AudioSession;
  81
  82 typedef struct _AudioSessionWrapper {
  83     IAudioSessionControl2 IAudioSessionControl2_iface;
  84     IChannelAudioVolume IChannelAudioVolume_iface;
  85     ISimpleAudioVolume ISimpleAudioVolume_iface;
  86
  87     LONG ref;
  88
  89     ACImpl *client;
  90     AudioSession *session;
  91 } AudioSessionWrapper;
  92
  93 struct ACImpl {
  94     IAudioClient IAudioClient_iface;
  95     IAudioRenderClient IAudioRenderClient_iface;
  96     IAudioCaptureClient IAudioCaptureClient_iface;
  97     IAudioClock IAudioClock_iface;
  98     IAudioClock2 IAudioClock2_iface;
  99     IAudioStreamVolume IAudioStreamVolume_iface;
 100
 101     LONG ref;
 102
 103     IMMDevice *parent;
 104     IUnknown *pUnkFTMarshal;
 105
 106     WAVEFORMATEX *fmt;
 107
 108     EDataFlow dataflow;
 109     DWORD flags;
 110     AUDCLNT_SHAREMODE share;
 111     HANDLE event;
 112     float *vols;
 113
 114     int fd;
 115     oss_audioinfo ai;
 116     char devnode[OSS_DEVNODE_SIZE];
 117
 118     BOOL initted, playing;
 119     UINT64 written_frames, last_pos_frames;
 120     UINT32 period_us, period_frames, bufsize_frames, held_frames, tmp_buffer_frames, in_oss_frames;
 121     UINT32 oss_bufsize_bytes, lcl_offs_frames; /* offs into local_buffer where valid data starts */
 122
 123     BYTE *local_buffer, *tmp_buffer;
 124     LONG32 getbuf_last; /* <0 when using tmp_buffer */
 125     HANDLE timer;
 126
 127     CRITICAL_SECTION lock;
 128
 129     AudioSession *session;
 130     AudioSessionWrapper *session_wrapper;
 131
 132     struct list entry;
 133 };
 134
 135 typedef struct _SessionMgr {
 136     IAudioSessionManager2 IAudioSessionManager2_iface;
 137
 138     LONG ref;
 139
 140     IMMDevice *device;
 141 } SessionMgr;
 142
 143 typedef struct _OSSDevice {
 144     EDataFlow flow;
 145     char devnode[OSS_DEVNODE_SIZE];
 146     GUID guid;
 147
 148     struct list entry;
 149 } OSSDevice;
 150
 151 static struct list g_devices = LIST_INIT(g_devices);
 152
 153 static const WCHAR drv_key_devicesW[] = {'S','o','f','t','w','a','r','e','\\',
 154     'W','i','n','e','\\','D','r','i','v','e','r','s','\\',
 155     'w','i','n','e','o','s','s','.','d','r','v','\\','d','e','v','i','c','e','s',0};
 156 static const WCHAR guidW[] = {'g','u','i','d',0};
 157
 158 static HANDLE g_timer_q;
 159
 160 static CRITICAL_SECTION g_sessions_lock;
 161 static CRITICAL_SECTION_DEBUG g_sessions_lock_debug =
 162 {
 163     0, 0, &g_sessions_lock,
 164     { &g_sessions_lock_debug.ProcessLocksList, &g_sessions_lock_debug.ProcessLocksList },
 165       0, 0, { (DWORD_PTR)(__FILE__ ": g_sessions_lock") }
 166 };
 167 static CRITICAL_SECTION g_sessions_lock = { &g_sessions_lock_debug, -1, 0, 0, 0, 0 };
 168 static struct list g_sessions = LIST_INIT(g_sessions);
 169
 170 static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client);
 171
 172 static const IAudioClientVtbl AudioClient_Vtbl;
 173 static const IAudioRenderClientVtbl AudioRenderClient_Vtbl;
 174 static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl;
 175 static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl;
 176 static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl;
 177 static const IAudioClockVtbl AudioClock_Vtbl;
 178 static const IAudioClock2Vtbl AudioClock2_Vtbl;
 179 static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl;
 180 static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl;
 181 static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl;
 182
 183 static inline ACImpl *impl_from_IAudioClient(IAudioClient *iface)
 184 {
 185     return CONTAINING_RECORD(iface, ACImpl, IAudioClient_iface);
 186 }
 187
 188 static inline ACImpl *impl_from_IAudioRenderClient(IAudioRenderClient *iface)
 189 {
 190     return CONTAINING_RECORD(iface, ACImpl, IAudioRenderClient_iface);
 191 }
 192
 193 static inline ACImpl *impl_from_IAudioCaptureClient(IAudioCaptureClient *iface)
 194 {
 195     return CONTAINING_RECORD(iface, ACImpl, IAudioCaptureClient_iface);
 196 }
 197
 198 static inline AudioSessionWrapper *impl_from_IAudioSessionControl2(IAudioSessionControl2 *iface)
 199 {
 200     return CONTAINING_RECORD(iface, AudioSessionWrapper, IAudioSessionControl2_iface);
 201 }
 202
 203 static inline AudioSessionWrapper *impl_from_ISimpleAudioVolume(ISimpleAudioVolume *iface)
 204 {
 205     return CONTAINING_RECORD(iface, AudioSessionWrapper, ISimpleAudioVolume_iface);
 206 }
 207
 208 static inline AudioSessionWrapper *impl_from_IChannelAudioVolume(IChannelAudioVolume *iface)
 209 {
 210     return CONTAINING_RECORD(iface, AudioSessionWrapper, IChannelAudioVolume_iface);
 211 }
 212
 213 static inline ACImpl *impl_from_IAudioClock(IAudioClock *iface)
 214 {
 215     return CONTAINING_RECORD(iface, ACImpl, IAudioClock_iface);
 216 }
 217
 218 static inline ACImpl *impl_from_IAudioClock2(IAudioClock2 *iface)
 219 {
 220     return CONTAINING_RECORD(iface, ACImpl, IAudioClock2_iface);
 221 }
 222
 223 static inline ACImpl *impl_from_IAudioStreamVolume(IAudioStreamVolume *iface)
 224 {
 225     return CONTAINING_RECORD(iface, ACImpl, IAudioStreamVolume_iface);
 226 }
 227
 228 static inline SessionMgr *impl_from_IAudioSessionManager2(IAudioSessionManager2 *iface)
 229 {
 230     return CONTAINING_RECORD(iface, SessionMgr, IAudioSessionManager2_iface);
 231 }
 232
 233 BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
 234 {
 235     switch (reason)
 236     {
 237     case DLL_PROCESS_ATTACH:
 238         g_timer_q = CreateTimerQueue();
 239         if(!g_timer_q)
 240             return FALSE;
 241         break;
 242
 243     case DLL_PROCESS_DETACH:
 244         if (!reserved)
 245         {
 246             OSSDevice *iter, *iter2;
 247
 248             DeleteCriticalSection(&g_sessions_lock);
 249
 250             LIST_FOR_EACH_ENTRY_SAFE(iter, iter2, &g_devices, OSSDevice, entry){
 251                 HeapFree(GetProcessHeap(), 0, iter);
 252             }
 253         }
 254         break;
 255     }
 256     return TRUE;
 257 }
 258
 259 /* From <dlls/mmdevapi/mmdevapi.h> */
 260 enum DriverPriority {
 261     Priority_Unavailable = 0,
 262     Priority_Low,
 263     Priority_Neutral,
 264     Priority_Preferred
 265 };
 266
 267 int WINAPI AUDDRV_GetPriority(void)
 268 {
 269     int mixer_fd;
 270     oss_sysinfo sysinfo;
 271
 272     /* Attempt to determine if we are running on OSS or ALSA's OSS
 273      * compatibility layer. There is no official way to do that, so just check
 274      * for validity as best as possible, without rejecting valid OSS
 275      * implementations. */
 276
 277     mixer_fd = open("/dev/mixer", O_RDONLY, 0);
 278     if(mixer_fd < 0){
 279         TRACE("Priority_Unavailable: open failed\n");
 280         return Priority_Unavailable;
 281     }
 282
 283     sysinfo.version[0] = 0xFF;
 284     sysinfo.versionnum = ~0;
 285     if(ioctl(mixer_fd, SNDCTL_SYSINFO, &sysinfo) < 0){
 286         TRACE("Priority_Unavailable: ioctl failed\n");
 287         close(mixer_fd);
 288         return Priority_Unavailable;
 289     }
 290
 291     close(mixer_fd);
 292
 293     if(sysinfo.version[0] < '4' || sysinfo.version[0] > '9'){
 294         TRACE("Priority_Low: sysinfo.version[0]: %x\n", sysinfo.version[0]);
 295         return Priority_Low;
 296     }
 297     if(sysinfo.versionnum & 0x80000000){
 298         TRACE("Priority_Low: sysinfo.versionnum: %x\n", sysinfo.versionnum);
 299         return Priority_Low;
 300     }
 301
 302     TRACE("Priority_Preferred: Seems like valid OSS!\n");
 303
 304     return Priority_Preferred;
 305 }
 306
 307 static void set_device_guid(EDataFlow flow, HKEY drv_key, const WCHAR *key_name,
 308         GUID *guid)
 309 {
 310     HKEY key;
 311     BOOL opened = FALSE;
 312     LONG lr;
 313
 314     if(!drv_key){
 315         lr = RegCreateKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, NULL, 0, KEY_WRITE,
 316                     NULL, &drv_key, NULL);
 317         if(lr != ERROR_SUCCESS){
 318             ERR("RegCreateKeyEx(drv_key) failed: %u\n", lr);
 319             return;
 320         }
 321         opened = TRUE;
 322     }
 323
 324     lr = RegCreateKeyExW(drv_key, key_name, 0, NULL, 0, KEY_WRITE,
 325                 NULL, &key, NULL);
 326     if(lr != ERROR_SUCCESS){
 327         ERR("RegCreateKeyEx(%s) failed: %u\n", wine_dbgstr_w(key_name), lr);
 328         goto exit;
 329     }
 330
 331     lr = RegSetValueExW(key, guidW, 0, REG_BINARY, (BYTE*)guid,
 332                 sizeof(GUID));
 333     if(lr != ERROR_SUCCESS)
 334         ERR("RegSetValueEx(%s\\guid) failed: %u\n", wine_dbgstr_w(key_name), lr);
 335
 336     RegCloseKey(key);
 337 exit:
 338     if(opened)
 339         RegCloseKey(drv_key);
 340 }
 341
 342 static void get_device_guid(EDataFlow flow, const char *device, GUID *guid)
 343 {
 344     HKEY key = NULL, dev_key;
 345     DWORD type, size = sizeof(*guid);
 346     WCHAR key_name[256];
 347
 348     if(flow == eCapture)
 349         key_name[0] = '1';
 350     else
 351         key_name[0] = '0';
 352     key_name[1] = ',';
 353     MultiByteToWideChar(CP_UNIXCP, 0, device, -1, key_name + 2,
 354             (sizeof(key_name) / sizeof(*key_name)) - 2);
 355
 356     if(RegOpenKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, KEY_WRITE|KEY_READ, &key) == ERROR_SUCCESS){
 357         if(RegOpenKeyExW(key, key_name, 0, KEY_READ, &dev_key) == ERROR_SUCCESS){
 358             if(RegQueryValueExW(dev_key, guidW, 0, &type,
 359                         (BYTE*)guid, &size) == ERROR_SUCCESS){
 360                 if(type == REG_BINARY){
 361                     RegCloseKey(dev_key);
 362                     RegCloseKey(key);
 363                     return;
 364                 }
 365                 ERR("Invalid type for device %s GUID: %u; ignoring and overwriting\n",
 366                         wine_dbgstr_w(key_name), type);
 367             }
 368             RegCloseKey(dev_key);
 369         }
 370     }
 371
 372     CoCreateGuid(guid);
 373
 374     set_device_guid(flow, key, key_name, guid);
 375
 376     if(key)
 377         RegCloseKey(key);
 378 }
 379
 380 static const char *oss_clean_devnode(const char *devnode)
 381 {
 382     static char ret[OSS_DEVNODE_SIZE];
 383
 384     const char *dot, *slash;
 385     size_t len;
 386
 387     dot = strrchr(devnode, '.');
 388     if(!dot)
 389         return devnode;
 390
 391     slash = strrchr(devnode, '/');
 392     if(slash && dot < slash)
 393         return devnode;
 394
 395     len = dot - devnode;
 396
 397     memcpy(ret, devnode, len);
 398     ret[len] = '\0';
 399
 400     return ret;
 401 }
 402
 403 static UINT get_default_index(EDataFlow flow)
 404 {
 405     int fd = -1, err;
 406     UINT i;
 407     oss_audioinfo ai;
 408     const char *devnode;
 409     OSSDevice *dev_item;
 410
 411     if(flow == eRender)
 412         fd = open("/dev/dsp", O_WRONLY | O_NONBLOCK);
 413     else
 414         fd = open("/dev/dsp", O_RDONLY | O_NONBLOCK);
 415
 416     if(fd < 0){
 417         WARN("Couldn't open default device!\n");
 418         return 0;
 419     }
 420
 421     ai.dev = -1;
 422     if((err = ioctl(fd, SNDCTL_ENGINEINFO, &ai)) < 0){
 423         WARN("SNDCTL_ENGINEINFO failed: %d (%s)\n", err, strerror(errno));
 424         close(fd);
 425         return 0;
 426     }
 427
 428     close(fd);
 429
 430     TRACE("Default devnode: %s\n", ai.devnode);
 431     devnode = oss_clean_devnode(ai.devnode);
 432     i = 0;
 433     LIST_FOR_EACH_ENTRY(dev_item, &g_devices, OSSDevice, entry){
 434         if(dev_item->flow == flow){
 435             if(!strcmp(devnode, dev_item->devnode))
 436                 return i;
 437             ++i;
 438         }
 439     }
 440
 441     WARN("Couldn't find default device! Choosing first.\n");
 442     return 0;
 443 }
 444
 445 HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids, GUID **guids,
 446         UINT *num, UINT *def_index)
 447 {
 448     int i, mixer_fd;
 449     oss_sysinfo sysinfo;
 450     static int print_once = 0;
 451
 452     static const WCHAR outW[] = {'O','u','t',':',' ',0};
 453     static const WCHAR inW[] = {'I','n',':',' ',0};
 454
 455     TRACE("%d %p %p %p %p\n", flow, ids, guids, num, def_index);
 456
 457     mixer_fd = open("/dev/mixer", O_RDONLY, 0);
 458     if(mixer_fd < 0){
 459         ERR("OSS /dev/mixer doesn't seem to exist\n");
 460         return AUDCLNT_E_SERVICE_NOT_RUNNING;
 461     }
 462
 463     if(ioctl(mixer_fd, SNDCTL_SYSINFO, &sysinfo) < 0){
 464         close(mixer_fd);
 465
 466         if(errno == EINVAL){
 467             ERR("OSS version too old, need at least OSSv4\n");
 468             return AUDCLNT_E_SERVICE_NOT_RUNNING;
 469         }
 470
 471         ERR("Error getting SNDCTL_SYSINFO: %d (%s)\n", errno, strerror(errno));
 472         return E_FAIL;
 473     }
 474
 475     if(!print_once){
 476         TRACE("OSS sysinfo:\n");
 477         TRACE("product: %s\n", sysinfo.product);
 478         TRACE("version: %s\n", sysinfo.version);
 479         TRACE("versionnum: %x\n", sysinfo.versionnum);
 480         TRACE("numaudios: %d\n", sysinfo.numaudios);
 481         TRACE("nummixers: %d\n", sysinfo.nummixers);
 482         TRACE("numcards: %d\n", sysinfo.numcards);
 483         TRACE("numaudioengines: %d\n", sysinfo.numaudioengines);
 484         print_once = 1;
 485     }
 486
 487     if(sysinfo.numaudios <= 0){
 488         WARN("No audio devices!\n");
 489         close(mixer_fd);
 490         return AUDCLNT_E_SERVICE_NOT_RUNNING;
 491     }
 492
 493     *ids = HeapAlloc(GetProcessHeap(), 0, sysinfo.numaudios * sizeof(WCHAR *));
 494     *guids = HeapAlloc(GetProcessHeap(), 0, sysinfo.numaudios * sizeof(GUID));
 495
 496     *num = 0;
 497     for(i = 0; i < sysinfo.numaudios; ++i){
 498         oss_audioinfo ai = {0};
 499         const char *devnode;
 500         OSSDevice *dev_item;
 501         int fd;
 502
 503         ai.dev = i;
 504         if(ioctl(mixer_fd, SNDCTL_AUDIOINFO, &ai) < 0){
 505             WARN("Error getting AUDIOINFO for dev %d: %d (%s)\n", i, errno,
 506                     strerror(errno));
 507             continue;
 508         }
 509
 510         devnode = oss_clean_devnode(ai.devnode);
 511
 512         /* check for duplicates */
 513         LIST_FOR_EACH_ENTRY(dev_item, &g_devices, OSSDevice, entry){
 514             if(dev_item->flow == flow && !strcmp(devnode, dev_item->devnode))
 515                 break;
 516         }
 517         if(&dev_item->entry != &g_devices)
 518             continue;
 519
 520         if(flow == eRender)
 521             fd = open(devnode, O_WRONLY | O_NONBLOCK, 0);
 522         else
 523             fd = open(devnode, O_RDONLY | O_NONBLOCK, 0);
 524         if(fd < 0){
 525             WARN("Opening device \"%s\" failed, pretending it doesn't exist: %d (%s)\n",
 526                     devnode, errno, strerror(errno));
 527             continue;
 528         }
 529         close(fd);
 530
 531         if((flow == eCapture && (ai.caps & PCM_CAP_INPUT)) ||
 532                 (flow == eRender && (ai.caps & PCM_CAP_OUTPUT))){
 533             size_t len, prefix_len;
 534             const WCHAR *prefix;
 535
 536             dev_item = HeapAlloc(GetProcessHeap(), 0, sizeof(*dev_item));
 537
 538             dev_item->flow = flow;
 539             get_device_guid(flow, devnode, &dev_item->guid);
 540             strcpy(dev_item->devnode, devnode);
 541
 542             (*guids)[*num] = dev_item->guid;
 543
 544             len = MultiByteToWideChar(CP_UNIXCP, 0, ai.name, -1, NULL, 0);
 545             if(flow == eRender){
 546                 prefix = outW;
 547                 prefix_len = (sizeof(outW) / sizeof(*outW)) - 1;
 548                 len += prefix_len;
 549             }else{
 550                 prefix = inW;
 551                 prefix_len = (sizeof(inW) / sizeof(*inW)) - 1;
 552                 len += prefix_len;
 553             }
 554             (*ids)[*num] = HeapAlloc(GetProcessHeap(), 0,
 555                     len * sizeof(WCHAR));
 556             if(!(*ids)[*num]){
 557                 for(i = 0; i < *num; ++i)
 558                     HeapFree(GetProcessHeap(), 0, (*ids)[i]);
 559                 HeapFree(GetProcessHeap(), 0, *ids);
 560                 HeapFree(GetProcessHeap(), 0, *guids);
 561                 HeapFree(GetProcessHeap(), 0, dev_item);
 562                 close(mixer_fd);
 563                 return E_OUTOFMEMORY;
 564             }
 565             memcpy((*ids)[*num], prefix, prefix_len * sizeof(WCHAR));
 566             MultiByteToWideChar(CP_UNIXCP, 0, ai.name, -1,
 567                     (*ids)[*num] + prefix_len, len - prefix_len);
 568
 569             list_add_tail(&g_devices, &dev_item->entry);
 570
 571             (*num)++;
 572         }
 573     }
 574
 575     close(mixer_fd);
 576
 577     *def_index = get_default_index(flow);
 578
 579     return S_OK;
 580 }
 581
 582 static const OSSDevice *get_ossdevice_from_guid(const GUID *guid)
 583 {
 584     OSSDevice *dev_item;
 585     LIST_FOR_EACH_ENTRY(dev_item, &g_devices, OSSDevice, entry)
 586         if(IsEqualGUID(guid, &dev_item->guid))
 587             return dev_item;
 588     return NULL;
 589 }
 590
 591 HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev,
 592         IAudioClient **out)
 593 {
 594     ACImpl *This;
 595     const OSSDevice *oss_dev;
 596     HRESULT hr;
 597
 598     TRACE("%s %p %p\n", debugstr_guid(guid), dev, out);
 599
 600     oss_dev = get_ossdevice_from_guid(guid);
 601     if(!oss_dev){
 602         WARN("Unknown GUID: %s\n", debugstr_guid(guid));
 603         return AUDCLNT_E_DEVICE_INVALIDATED;
 604     }
 605
 606     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ACImpl));
 607     if(!This)
 608         return E_OUTOFMEMORY;
 609
 610     hr = CoCreateFreeThreadedMarshaler((IUnknown *)&This->IAudioClient_iface,
 611         (IUnknown **)&This->pUnkFTMarshal);
 612     if (FAILED(hr)) {
 613          HeapFree(GetProcessHeap(), 0, This);
 614          return hr;
 615     }
 616
 617     if(oss_dev->flow == eRender)
 618         This->fd = open(oss_dev->devnode, O_WRONLY | O_NONBLOCK, 0);
 619     else if(oss_dev->flow == eCapture)
 620         This->fd = open(oss_dev->devnode, O_RDONLY | O_NONBLOCK, 0);
 621     else{
 622         HeapFree(GetProcessHeap(), 0, This);
 623         return E_INVALIDARG;
 624     }
 625     if(This->fd < 0){
 626         WARN("Unable to open device %s: %d (%s)\n", oss_dev->devnode, errno,
 627                 strerror(errno));
 628         HeapFree(GetProcessHeap(), 0, This);
 629         return AUDCLNT_E_DEVICE_INVALIDATED;
 630     }
 631
 632     This->dataflow = oss_dev->flow;
 633
 634     This->ai.dev = -1;
 635     if(ioctl(This->fd, SNDCTL_ENGINEINFO, &This->ai) < 0){
 636         WARN("Unable to get audio info for device %s: %d (%s)\n", oss_dev->devnode,
 637                 errno, strerror(errno));
 638         close(This->fd);
 639         HeapFree(GetProcessHeap(), 0, This);
 640         return E_FAIL;
 641     }
 642
 643     strcpy(This->devnode, oss_dev->devnode);
 644
 645     TRACE("OSS audioinfo:\n");
 646     TRACE("devnode: %s\n", This->ai.devnode);
 647     TRACE("name: %s\n", This->ai.name);
 648     TRACE("busy: %x\n", This->ai.busy);
 649     TRACE("caps: %x\n", This->ai.caps);
 650     TRACE("iformats: %x\n", This->ai.iformats);
 651     TRACE("oformats: %x\n", This->ai.oformats);
 652     TRACE("enabled: %d\n", This->ai.enabled);
 653     TRACE("min_rate: %d\n", This->ai.min_rate);
 654     TRACE("max_rate: %d\n", This->ai.max_rate);
 655     TRACE("min_channels: %d\n", This->ai.min_channels);
 656     TRACE("max_channels: %d\n", This->ai.max_channels);
 657
 658     This->IAudioClient_iface.lpVtbl = &AudioClient_Vtbl;
 659     This->IAudioRenderClient_iface.lpVtbl = &AudioRenderClient_Vtbl;
 660     This->IAudioCaptureClient_iface.lpVtbl = &AudioCaptureClient_Vtbl;
 661     This->IAudioClock_iface.lpVtbl = &AudioClock_Vtbl;
 662     This->IAudioClock2_iface.lpVtbl = &AudioClock2_Vtbl;
 663     This->IAudioStreamVolume_iface.lpVtbl = &AudioStreamVolume_Vtbl;
 664
 665     InitializeCriticalSection(&This->lock);
 666     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ACImpl.lock");
 667
 668     This->parent = dev;
 669     IMMDevice_AddRef(This->parent);
 670
 671     IAudioClient_AddRef(&This->IAudioClient_iface);
 672
 673     *out = &This->IAudioClient_iface;
 674
 675     return S_OK;
 676 }
 677
 678 static HRESULT WINAPI AudioClient_QueryInterface(IAudioClient *iface,
 679         REFIID riid, void **ppv)
 680 {
 681     ACImpl *This = impl_from_IAudioClient(iface);
 682     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
 683
 684     if(!ppv)
 685         return E_POINTER;
 686     *ppv = NULL;
 687     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClient))
 688         *ppv = iface;
 689     else if(IsEqualIID(riid, &IID_IMarshal))
 690         return IUnknown_QueryInterface(This->pUnkFTMarshal, riid, ppv);
 691     if(*ppv){
 692         IUnknown_AddRef((IUnknown*)*ppv);
 693         return S_OK;
 694     }
 695     WARN("Unknown interface %s\n", debugstr_guid(riid));
 696     return E_NOINTERFACE;
 697 }
 698
 699 static ULONG WINAPI AudioClient_AddRef(IAudioClient *iface)
 700 {
 701     ACImpl *This = impl_from_IAudioClient(iface);
 702     ULONG ref;
 703     ref = InterlockedIncrement(&This->ref);
 704     TRACE("(%p) Refcount now %u\n", This, ref);
 705     return ref;
 706 }
 707
 708 static ULONG WINAPI AudioClient_Release(IAudioClient *iface)
 709 {
 710     ACImpl *This = impl_from_IAudioClient(iface);
 711     ULONG ref;
 712
 713     ref = InterlockedDecrement(&This->ref);
 714     TRACE("(%p) Refcount now %u\n", This, ref);
 715     if(!ref){
 716         if(This->timer){
 717             HANDLE event;
 718             DWORD wait;
 719             event = CreateEventW(NULL, TRUE, FALSE, NULL);
 720             wait = !DeleteTimerQueueTimer(g_timer_q, This->timer, event);
 721             wait = wait && GetLastError() == ERROR_IO_PENDING;
 722             if(event && wait)
 723                 WaitForSingleObject(event, INFINITE);
 724             CloseHandle(event);
 725         }
 726
 727         IAudioClient_Stop(iface);
 728         IMMDevice_Release(This->parent);
 729         IUnknown_Release(This->pUnkFTMarshal);
 730         This->lock.DebugInfo->Spare[0] = 0;
 731         DeleteCriticalSection(&This->lock);
 732         close(This->fd);
 733         if(This->initted){
 734             EnterCriticalSection(&g_sessions_lock);
 735             list_remove(&This->entry);
 736             LeaveCriticalSection(&g_sessions_lock);
 737         }
 738         HeapFree(GetProcessHeap(), 0, This->vols);
 739         HeapFree(GetProcessHeap(), 0, This->local_buffer);
 740         HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
 741         CoTaskMemFree(This->fmt);
 742         HeapFree(GetProcessHeap(), 0, This);
 743     }
 744     return ref;
 745 }
 746
 747 static void dump_fmt(const WAVEFORMATEX *fmt)
 748 {
 749     TRACE("wFormatTag: 0x%x (", fmt->wFormatTag);
 750     switch(fmt->wFormatTag){
 751     case WAVE_FORMAT_PCM:
 752         TRACE("WAVE_FORMAT_PCM");
 753         break;
 754     case WAVE_FORMAT_IEEE_FLOAT:
 755         TRACE("WAVE_FORMAT_IEEE_FLOAT");
 756         break;
 757     case WAVE_FORMAT_EXTENSIBLE:
 758         TRACE("WAVE_FORMAT_EXTENSIBLE");
 759         break;
 760     default:
 761         TRACE("Unknown");
 762         break;
 763     }
 764     TRACE(")\n");
 765
 766     TRACE("nChannels: %u\n", fmt->nChannels);
 767     TRACE("nSamplesPerSec: %u\n", fmt->nSamplesPerSec);
 768     TRACE("nAvgBytesPerSec: %u\n", fmt->nAvgBytesPerSec);
 769     TRACE("nBlockAlign: %u\n", fmt->nBlockAlign);
 770     TRACE("wBitsPerSample: %u\n", fmt->wBitsPerSample);
 771     TRACE("cbSize: %u\n", fmt->cbSize);
 772
 773     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
 774         WAVEFORMATEXTENSIBLE *fmtex = (void*)fmt;
 775         TRACE("dwChannelMask: %08x\n", fmtex->dwChannelMask);
 776         TRACE("Samples: %04x\n", fmtex->Samples.wReserved);
 777         TRACE("SubFormat: %s\n", wine_dbgstr_guid(&fmtex->SubFormat));
 778     }
 779 }
 780
 781 static DWORD get_channel_mask(unsigned int channels)
 782 {
 783     switch(channels){
 784     case 0:
 785         return 0;
 786     case 1:
 787         return KSAUDIO_SPEAKER_MONO;
 788     case 2:
 789         return KSAUDIO_SPEAKER_STEREO;
 790     case 3:
 791         return KSAUDIO_SPEAKER_STEREO | SPEAKER_LOW_FREQUENCY;
 792     case 4:
 793         return KSAUDIO_SPEAKER_QUAD;    /* not _SURROUND */
 794     case 5:
 795         return KSAUDIO_SPEAKER_QUAD | SPEAKER_LOW_FREQUENCY;
 796     case 6:
 797         return KSAUDIO_SPEAKER_5POINT1; /* not 5POINT1_SURROUND */
 798     case 7:
 799         return KSAUDIO_SPEAKER_5POINT1 | SPEAKER_BACK_CENTER;
 800     case 8:
 801         return KSAUDIO_SPEAKER_7POINT1_SURROUND; /* Vista deprecates 7POINT1 */
 802     }
 803     FIXME("Unknown speaker configuration: %u\n", channels);
 804     return 0;
 805 }
 806
 807 static int get_oss_format(const WAVEFORMATEX *fmt)
 808 {
 809     WAVEFORMATEXTENSIBLE *fmtex = (WAVEFORMATEXTENSIBLE*)fmt;
 810
 811     if(fmt->wFormatTag == WAVE_FORMAT_PCM ||
 812             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 813              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))){
 814         switch(fmt->wBitsPerSample){
 815         case 8:
 816             return AFMT_U8;
 817         case 16:
 818             return AFMT_S16_LE;
 819         case 24:
 820             return AFMT_S24_LE;
 821         case 32:
 822             return AFMT_S32_LE;
 823         }
 824         return -1;
 825     }
 826
 827 #ifdef AFMT_FLOAT
 828     if(fmt->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
 829             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 830              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))){
 831         if(fmt->wBitsPerSample != 32)
 832             return -1;
 833
 834         return AFMT_FLOAT;
 835     }
 836 #endif
 837
 838     return -1;
 839 }
 840
 841 static WAVEFORMATEX *clone_format(const WAVEFORMATEX *fmt)
 842 {
 843     WAVEFORMATEX *ret;
 844     size_t size;
 845
 846     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
 847         size = sizeof(WAVEFORMATEXTENSIBLE);
 848     else
 849         size = sizeof(WAVEFORMATEX);
 850
 851     ret = CoTaskMemAlloc(size);
 852     if(!ret)
 853         return NULL;
 854
 855     memcpy(ret, fmt, size);
 856
 857     ret->cbSize = size - sizeof(WAVEFORMATEX);
 858
 859     return ret;
 860 }
 861
 862 static HRESULT setup_oss_device(AUDCLNT_SHAREMODE mode, int fd,
 863         const WAVEFORMATEX *fmt, WAVEFORMATEX **out)
 864 {
 865     int tmp, oss_format;
 866     double tenth;
 867     HRESULT ret = S_OK;
 868     WAVEFORMATEX *closest = NULL;
 869
 870     tmp = oss_format = get_oss_format(fmt);
 871     if(oss_format < 0)
 872         return AUDCLNT_E_UNSUPPORTED_FORMAT;
 873     if(ioctl(fd, SNDCTL_DSP_SETFMT, &tmp) < 0){
 874         WARN("SETFMT failed: %d (%s)\n", errno, strerror(errno));
 875         return E_FAIL;
 876     }
 877     if(tmp != oss_format){
 878         TRACE("Format unsupported by this OSS version: %x\n", oss_format);
 879         return AUDCLNT_E_UNSUPPORTED_FORMAT;
 880     }
 881
 882     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 883             (fmt->nAvgBytesPerSec == 0 ||
 884              fmt->nBlockAlign == 0 ||
 885              ((WAVEFORMATEXTENSIBLE*)fmt)->Samples.wValidBitsPerSample > fmt->wBitsPerSample))
 886         return E_INVALIDARG;
 887
 888     if(fmt->nChannels == 0)
 889         return AUDCLNT_E_UNSUPPORTED_FORMAT;
 890
 891     closest = clone_format(fmt);
 892     if(!closest)
 893         return E_OUTOFMEMORY;
 894
 895     tmp = fmt->nSamplesPerSec;
 896     if(ioctl(fd, SNDCTL_DSP_SPEED, &tmp) < 0){
 897         WARN("SPEED failed: %d (%s)\n", errno, strerror(errno));
 898         CoTaskMemFree(closest);
 899         return E_FAIL;
 900     }
 901     tenth = fmt->nSamplesPerSec * 0.1;
 902     if(tmp > fmt->nSamplesPerSec + tenth || tmp < fmt->nSamplesPerSec - tenth){
 903         ret = S_FALSE;
 904         closest->nSamplesPerSec = tmp;
 905     }
 906
 907     tmp = fmt->nChannels;
 908     if(ioctl(fd, SNDCTL_DSP_CHANNELS, &tmp) < 0){
 909         WARN("CHANNELS failed: %d (%s)\n", errno, strerror(errno));
 910         CoTaskMemFree(closest);
 911         return E_FAIL;
 912     }
 913     if(tmp != fmt->nChannels){
 914         ret = S_FALSE;
 915         closest->nChannels = tmp;
 916     }
 917
 918     if(closest->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
 919         ((WAVEFORMATEXTENSIBLE*)closest)->dwChannelMask = get_channel_mask(closest->nChannels);
 920
 921     if(fmt->nBlockAlign != fmt->nChannels * fmt->wBitsPerSample / 8 ||
 922             fmt->nAvgBytesPerSec != fmt->nBlockAlign * fmt->nSamplesPerSec ||
 923             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 924              ((WAVEFORMATEXTENSIBLE*)fmt)->Samples.wValidBitsPerSample < fmt->wBitsPerSample))
 925         ret = S_FALSE;
 926
 927     if(mode == AUDCLNT_SHAREMODE_EXCLUSIVE &&
 928             fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
 929         if(((WAVEFORMATEXTENSIBLE*)fmt)->dwChannelMask == 0 ||
 930                 ((WAVEFORMATEXTENSIBLE*)fmt)->dwChannelMask & SPEAKER_RESERVED)
 931             ret = S_FALSE;
 932     }
 933
 934     if(ret == S_FALSE && !out)
 935         ret = AUDCLNT_E_UNSUPPORTED_FORMAT;
 936
 937     if(ret == S_FALSE && out){
 938         closest->nBlockAlign =
 939             closest->nChannels * closest->wBitsPerSample / 8;
 940         closest->nAvgBytesPerSec =
 941             closest->nBlockAlign * closest->nSamplesPerSec;
 942         if(closest->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
 943             ((WAVEFORMATEXTENSIBLE*)closest)->Samples.wValidBitsPerSample = closest->wBitsPerSample;
 944         *out = closest;
 945     } else
 946         CoTaskMemFree(closest);
 947
 948     TRACE("returning: %08x\n", ret);
 949     return ret;
 950 }
 951
 952 static void session_init_vols(AudioSession *session, UINT channels)
 953 {
 954     if(session->channel_count < channels){
 955         UINT i;
 956
 957         if(session->channel_vols)
 958             session->channel_vols = HeapReAlloc(GetProcessHeap(), 0,
 959                     session->channel_vols, sizeof(float) * channels);
 960         else
 961             session->channel_vols = HeapAlloc(GetProcessHeap(), 0,
 962                     sizeof(float) * channels);
 963         if(!session->channel_vols)
 964             return;
 965
 966         for(i = session->channel_count; i < channels; ++i)
 967             session->channel_vols[i] = 1.f;
 968
 969         session->channel_count = channels;
 970     }
 971 }
 972
 973 static AudioSession *create_session(const GUID *guid, IMMDevice *device,
 974         UINT num_channels)
 975 {
 976     AudioSession *ret;
 977
 978     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(AudioSession));
 979     if(!ret)
 980         return NULL;
 981
 982     memcpy(&ret->guid, guid, sizeof(GUID));
 983
 984     ret->device = device;
 985
 986     list_init(&ret->clients);
 987
 988     list_add_head(&g_sessions, &ret->entry);
 989
 990     InitializeCriticalSection(&ret->lock);
 991     ret->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": AudioSession.lock");
 992
 993     session_init_vols(ret, num_channels);
 994
 995     ret->master_vol = 1.f;
 996
 997     return ret;
 998 }
 999
1000 /* if channels == 0, then this will return or create a session with
1001  * matching dataflow and GUID. otherwise, channels must also match */
1002 static HRESULT get_audio_session(const GUID *sessionguid,
1003         IMMDevice *device, UINT channels, AudioSession **out)
1004 {
1005     AudioSession *session;
1006
1007     if(!sessionguid || IsEqualGUID(sessionguid, &GUID_NULL)){
1008         *out = create_session(&GUID_NULL, device, channels);
1009         if(!*out)
1010             return E_OUTOFMEMORY;
1011
1012         return S_OK;
1013     }
1014
1015     *out = NULL;
1016     LIST_FOR_EACH_ENTRY(session, &g_sessions, AudioSession, entry){
1017         if(session->device == device &&
1018                 IsEqualGUID(sessionguid, &session->guid)){
1019             session_init_vols(session, channels);
1020             *out = session;
1021             break;
1022         }
1023     }
1024
1025     if(!*out){
1026         *out = create_session(sessionguid, device, channels);
1027         if(!*out)
1028             return E_OUTOFMEMORY;
1029     }
1030
1031     return S_OK;
1032 }
1033
1034 static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
1035         AUDCLNT_SHAREMODE mode, DWORD flags, REFERENCE_TIME duration,
1036         REFERENCE_TIME period, const WAVEFORMATEX *fmt,
1037         const GUID *sessionguid)
1038 {
1039     ACImpl *This = impl_from_IAudioClient(iface);
1040     int i;
1041     HRESULT hr;
1042
1043     TRACE("(%p)->(%x, %x, %s, %s, %p, %s)\n", This, mode, flags,
1044           wine_dbgstr_longlong(duration), wine_dbgstr_longlong(period), fmt, debugstr_guid(sessionguid));
1045
1046     if(!fmt)
1047         return E_POINTER;
1048
1049     dump_fmt(fmt);
1050
1051     if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
1052         return AUDCLNT_E_NOT_INITIALIZED;
1053
1054     if(flags & ~(AUDCLNT_STREAMFLAGS_CROSSPROCESS |
1055                 AUDCLNT_STREAMFLAGS_LOOPBACK |
1056                 AUDCLNT_STREAMFLAGS_EVENTCALLBACK |
1057                 AUDCLNT_STREAMFLAGS_NOPERSIST |
1058                 AUDCLNT_STREAMFLAGS_RATEADJUST |
1059                 AUDCLNT_SESSIONFLAGS_EXPIREWHENUNOWNED |
1060                 AUDCLNT_SESSIONFLAGS_DISPLAY_HIDE |
1061                 AUDCLNT_SESSIONFLAGS_DISPLAY_HIDEWHENEXPIRED)){
1062         TRACE("Unknown flags: %08x\n", flags);
1063         return E_INVALIDARG;
1064     }
1065
1066     if(mode == AUDCLNT_SHAREMODE_SHARED){
1067         period = DefaultPeriod;
1068         if( duration < 3 * period)
1069             duration = 3 * period;
1070     }else{
1071         if(!period)
1072             period = DefaultPeriod; /* not minimum */
1073         if(period < MinimumPeriod || period > 5000000)
1074             return AUDCLNT_E_INVALID_DEVICE_PERIOD;
1075         if(duration > 20000000) /* the smaller the period, the lower this limit */
1076             return AUDCLNT_E_BUFFER_SIZE_ERROR;
1077         if(flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK){
1078             if(duration != period)
1079                 return AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL;
1080             FIXME("EXCLUSIVE mode with EVENTCALLBACK\n");
1081             return AUDCLNT_E_DEVICE_IN_USE;
1082         }else{
1083             if( duration < 8 * period)
1084                 duration = 8 * period; /* may grow above 2s */
1085         }
1086     }
1087
1088     EnterCriticalSection(&This->lock);
1089
1090     if(This->initted){
1091         LeaveCriticalSection(&This->lock);
1092         return AUDCLNT_E_ALREADY_INITIALIZED;
1093     }
1094
1095     hr = setup_oss_device(mode, This->fd, fmt, NULL);
1096     if(FAILED(hr)){
1097         LeaveCriticalSection(&This->lock);
1098         return hr;
1099     }
1100
1101     This->fmt = clone_format(fmt);
1102     if(!This->fmt){
1103         LeaveCriticalSection(&This->lock);
1104         return E_OUTOFMEMORY;
1105     }
1106
1107     This->period_us = period / 10;
1108     This->period_frames = MulDiv(fmt->nSamplesPerSec, period, 10000000);
1109
1110     This->bufsize_frames = MulDiv(duration, fmt->nSamplesPerSec, 10000000);
1111     if(mode == AUDCLNT_SHAREMODE_EXCLUSIVE)
1112         This->bufsize_frames -= This->bufsize_frames % This->period_frames;
1113     This->local_buffer = HeapAlloc(GetProcessHeap(), 0,
1114             This->bufsize_frames * fmt->nBlockAlign);
1115     if(!This->local_buffer){
1116         CoTaskMemFree(This->fmt);
1117         This->fmt = NULL;
1118         LeaveCriticalSection(&This->lock);
1119         return E_OUTOFMEMORY;
1120     }
1121
1122     This->vols = HeapAlloc(GetProcessHeap(), 0, fmt->nChannels * sizeof(float));
1123     if(!This->vols){
1124         CoTaskMemFree(This->fmt);
1125         This->fmt = NULL;
1126         LeaveCriticalSection(&This->lock);
1127         return E_OUTOFMEMORY;
1128     }
1129
1130     for(i = 0; i < fmt->nChannels; ++i)
1131         This->vols[i] = 1.f;
1132
1133     This->share = mode;
1134     This->flags = flags;
1135     This->oss_bufsize_bytes = 0;
1136
1137     EnterCriticalSection(&g_sessions_lock);
1138
1139     hr = get_audio_session(sessionguid, This->parent, fmt->nChannels,
1140             &This->session);
1141     if(FAILED(hr)){
1142         LeaveCriticalSection(&g_sessions_lock);
1143         HeapFree(GetProcessHeap(), 0, This->vols);
1144         This->vols = NULL;
1145         CoTaskMemFree(This->fmt);
1146         This->fmt = NULL;
1147         LeaveCriticalSection(&This->lock);
1148         return hr;
1149     }
1150
1151     list_add_tail(&This->session->clients, &This->entry);
1152
1153     LeaveCriticalSection(&g_sessions_lock);
1154
1155     This->initted = TRUE;
1156
1157     LeaveCriticalSection(&This->lock);
1158
1159     return S_OK;
1160 }
1161
1162 static HRESULT WINAPI AudioClient_GetBufferSize(IAudioClient *iface,
1163         UINT32 *frames)
1164 {
1165     ACImpl *This = impl_from_IAudioClient(iface);
1166
1167     TRACE("(%p)->(%p)\n", This, frames);
1168
1169     if(!frames)
1170         return E_POINTER;
1171
1172     EnterCriticalSection(&This->lock);
1173
1174     if(!This->initted){
1175         LeaveCriticalSection(&This->lock);
1176         return AUDCLNT_E_NOT_INITIALIZED;
1177     }
1178
1179     *frames = This->bufsize_frames;
1180
1181     TRACE("buffer size: %u\n", *frames);
1182
1183     LeaveCriticalSection(&This->lock);
1184
1185     return S_OK;
1186 }
1187
1188 static HRESULT WINAPI AudioClient_GetStreamLatency(IAudioClient *iface,
1189         REFERENCE_TIME *latency)
1190 {
1191     ACImpl *This = impl_from_IAudioClient(iface);
1192
1193     TRACE("(%p)->(%p)\n", This, latency);
1194
1195     if(!latency)
1196         return E_POINTER;
1197
1198     EnterCriticalSection(&This->lock);
1199
1200     if(!This->initted){
1201         LeaveCriticalSection(&This->lock);
1202         return AUDCLNT_E_NOT_INITIALIZED;
1203     }
1204
1205     /* pretend we process audio in Period chunks, so max latency includes
1206      * the period time.  Some native machines add .6666ms in shared mode. */
1207     *latency = This->period_us * 10 + 6666;
1208
1209     LeaveCriticalSection(&This->lock);
1210
1211     return S_OK;
1212 }
1213
1214 static HRESULT WINAPI AudioClient_GetCurrentPadding(IAudioClient *iface,
1215         UINT32 *numpad)
1216 {
1217     ACImpl *This = impl_from_IAudioClient(iface);
1218
1219     TRACE("(%p)->(%p)\n", This, numpad);
1220
1221     if(!numpad)
1222         return E_POINTER;
1223
1224     EnterCriticalSection(&This->lock);
1225
1226     if(!This->initted){
1227         LeaveCriticalSection(&This->lock);
1228         return AUDCLNT_E_NOT_INITIALIZED;
1229     }
1230
1231     *numpad = This->held_frames;
1232
1233     TRACE("padding: %u\n", *numpad);
1234
1235     LeaveCriticalSection(&This->lock);
1236
1237     return S_OK;
1238 }
1239
1240 static HRESULT WINAPI AudioClient_IsFormatSupported(IAudioClient *iface,
1241         AUDCLNT_SHAREMODE mode, const WAVEFORMATEX *pwfx,
1242         WAVEFORMATEX **outpwfx)
1243 {
1244     ACImpl *This = impl_from_IAudioClient(iface);
1245     int fd = -1;
1246     HRESULT ret;
1247
1248     TRACE("(%p)->(%x, %p, %p)\n", This, mode, pwfx, outpwfx);
1249
1250     if(!pwfx || (mode == AUDCLNT_SHAREMODE_SHARED && !outpwfx))
1251         return E_POINTER;
1252
1253     if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
1254         return E_INVALIDARG;
1255
1256     if(pwfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1257             pwfx->cbSize < sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX))
1258         return E_INVALIDARG;
1259
1260     dump_fmt(pwfx);
1261
1262     if(outpwfx){
1263         *outpwfx = NULL;
1264         if(mode != AUDCLNT_SHAREMODE_SHARED)
1265             outpwfx = NULL;
1266     }
1267
1268     if(This->dataflow == eRender)
1269         fd = open(This->devnode, O_WRONLY | O_NONBLOCK, 0);
1270     else if(This->dataflow == eCapture)
1271         fd = open(This->devnode, O_RDONLY | O_NONBLOCK, 0);
1272
1273     if(fd < 0){
1274         WARN("Unable to open device %s: %d (%s)\n", This->devnode, errno,
1275                 strerror(errno));
1276         return AUDCLNT_E_DEVICE_INVALIDATED;
1277     }
1278
1279     ret = setup_oss_device(mode, fd, pwfx, outpwfx);
1280
1281     close(fd);
1282
1283     return ret;
1284 }
1285
1286 static HRESULT WINAPI AudioClient_GetMixFormat(IAudioClient *iface,
1287         WAVEFORMATEX **pwfx)
1288 {
1289     ACImpl *This = impl_from_IAudioClient(iface);
1290     WAVEFORMATEXTENSIBLE *fmt;
1291     int formats;
1292
1293     TRACE("(%p)->(%p)\n", This, pwfx);
1294
1295     if(!pwfx)
1296         return E_POINTER;
1297     *pwfx = NULL;
1298
1299     if(This->dataflow == eRender)
1300         formats = This->ai.oformats;
1301     else if(This->dataflow == eCapture)
1302         formats = This->ai.iformats;
1303     else
1304         return E_UNEXPECTED;
1305
1306     fmt = CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
1307     if(!fmt)
1308         return E_OUTOFMEMORY;
1309
1310     fmt->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
1311     if(formats & AFMT_S16_LE){
1312         fmt->Format.wBitsPerSample = 16;
1313         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1314 #ifdef AFMT_FLOAT
1315     }else if(formats & AFMT_FLOAT){
1316         fmt->Format.wBitsPerSample = 32;
1317         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
1318 #endif
1319     }else if(formats & AFMT_U8){
1320         fmt->Format.wBitsPerSample = 8;
1321         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1322     }else if(formats & AFMT_S32_LE){
1323         fmt->Format.wBitsPerSample = 32;
1324         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1325     }else if(formats & AFMT_S24_LE){
1326         fmt->Format.wBitsPerSample = 24;
1327         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1328     }else{
1329         WARN("Didn't recognize any available OSS formats: %x\n", formats);
1330         CoTaskMemFree(fmt);
1331         return E_FAIL;
1332     }
1333
1334     /* some OSS drivers are buggy, so set reasonable defaults if
1335      * the reported values seem wacky */
1336     fmt->Format.nChannels = max(This->ai.max_channels, This->ai.min_channels);
1337     if(fmt->Format.nChannels == 0 || fmt->Format.nChannels > 8)
1338         fmt->Format.nChannels = 2;
1339
1340     if(This->ai.max_rate == 0)
1341         fmt->Format.nSamplesPerSec = 44100;
1342     else
1343         fmt->Format.nSamplesPerSec = min(This->ai.max_rate, 44100);
1344     if(fmt->Format.nSamplesPerSec < This->ai.min_rate)
1345         fmt->Format.nSamplesPerSec = This->ai.min_rate;
1346
1347     fmt->dwChannelMask = get_channel_mask(fmt->Format.nChannels);
1348
1349     fmt->Format.nBlockAlign = (fmt->Format.wBitsPerSample *
1350             fmt->Format.nChannels) / 8;
1351     fmt->Format.nAvgBytesPerSec = fmt->Format.nSamplesPerSec *
1352         fmt->Format.nBlockAlign;
1353
1354     fmt->Samples.wValidBitsPerSample = fmt->Format.wBitsPerSample;
1355     fmt->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
1356
1357     *pwfx = (WAVEFORMATEX*)fmt;
1358     dump_fmt(*pwfx);
1359
1360     return S_OK;
1361 }
1362
1363 static HRESULT WINAPI AudioClient_GetDevicePeriod(IAudioClient *iface,
1364         REFERENCE_TIME *defperiod, REFERENCE_TIME *minperiod)
1365 {
1366     ACImpl *This = impl_from_IAudioClient(iface);
1367
1368     TRACE("(%p)->(%p, %p)\n", This, defperiod, minperiod);
1369
1370     if(!defperiod && !minperiod)
1371         return E_POINTER;
1372
1373     if(defperiod)
1374         *defperiod = DefaultPeriod;
1375     if(minperiod)
1376         *minperiod = MinimumPeriod;
1377
1378     return S_OK;
1379 }
1380
1381 static void silence_buffer(ACImpl *This, BYTE *buffer, UINT32 frames)
1382 {
1383     WAVEFORMATEXTENSIBLE *fmtex = (WAVEFORMATEXTENSIBLE*)This->fmt;
1384     if((This->fmt->wFormatTag == WAVE_FORMAT_PCM ||
1385             (This->fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1386              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) &&
1387             This->fmt->wBitsPerSample == 8)
1388         memset(buffer, 128, frames * This->fmt->nBlockAlign);
1389     else
1390         memset(buffer, 0, frames * This->fmt->nBlockAlign);
1391 }
1392
1393 static void oss_write_data(ACImpl *This)
1394 {
1395     ssize_t written_bytes;
1396     UINT32 written_frames, in_oss_frames, write_limit, max_period, write_offs_frames, new_frames;
1397     size_t to_write_frames, to_write_bytes, advanced;
1398     audio_buf_info bi;
1399     BYTE *buf;
1400
1401     if(ioctl(This->fd, SNDCTL_DSP_GETOSPACE, &bi) < 0){
1402         WARN("GETOSPACE failed: %d (%s)\n", errno, strerror(errno));
1403         return;
1404     }
1405
1406     max_period = max(bi.fragsize / This->fmt->nBlockAlign, This->period_frames);
1407
1408     if(bi.bytes > This->oss_bufsize_bytes){
1409         TRACE("New buffer size (%u) is larger than old buffer size (%u)\n",
1410                 bi.bytes, This->oss_bufsize_bytes);
1411         This->oss_bufsize_bytes = bi.bytes;
1412         in_oss_frames = 0;
1413     }else if(This->oss_bufsize_bytes - bi.bytes <= bi.fragsize)
1414         in_oss_frames = 0;
1415     else
1416         in_oss_frames = (This->oss_bufsize_bytes - bi.bytes) / This->fmt->nBlockAlign;
1417
1418     write_limit = 0;
1419     while(write_limit + in_oss_frames < max_period * 3)
1420         write_limit += max_period;
1421     if(write_limit == 0)
1422         return;
1423
1424     /*        vvvvvv - in_oss_frames
1425      * [--xxxxxxxxxx]
1426      *       [xxxxxxxxxx--]
1427      *        ^^^^^^^^^^ - held_frames
1428      *        ^ - lcl_offs_frames
1429      */
1430     advanced = This->in_oss_frames - in_oss_frames;
1431     if(advanced > This->held_frames)
1432         advanced = This->held_frames;
1433     This->lcl_offs_frames += advanced;
1434     This->lcl_offs_frames %= This->bufsize_frames;
1435     This->held_frames -= advanced;
1436     This->in_oss_frames = in_oss_frames;
1437
1438
1439     if(This->held_frames == This->in_oss_frames)
1440         return;
1441
1442     write_offs_frames = (This->lcl_offs_frames + This->in_oss_frames) % This->bufsize_frames;
1443     new_frames = This->held_frames - This->in_oss_frames;
1444
1445     if(write_offs_frames + new_frames > This->bufsize_frames)
1446         to_write_frames = This->bufsize_frames - write_offs_frames;
1447     else
1448         to_write_frames = new_frames;
1449
1450     to_write_frames = min(to_write_frames, write_limit);
1451     to_write_bytes = to_write_frames * This->fmt->nBlockAlign;
1452
1453
1454     buf = This->local_buffer + write_offs_frames * This->fmt->nBlockAlign;
1455
1456     if(This->session->mute)
1457         silence_buffer(This, buf, to_write_frames);
1458
1459     written_bytes = write(This->fd, buf, to_write_bytes);
1460     if(written_bytes < 0){
1461         /* EAGAIN is OSS buffer full, log that too */
1462         WARN("write failed: %d (%s)\n", errno, strerror(errno));
1463         return;
1464     }
1465     written_frames = written_bytes / This->fmt->nBlockAlign;
1466
1467     This->in_oss_frames += written_frames;
1468
1469     if(written_frames < to_write_frames){
1470         /* OSS buffer probably full */
1471         return;
1472     }
1473
1474     if(new_frames > written_frames && written_frames < write_limit){
1475         /* wrapped and have some data back at the start to write */
1476
1477         to_write_frames = min(write_limit - written_frames, new_frames - written_frames);
1478         to_write_bytes = to_write_frames * This->fmt->nBlockAlign;
1479
1480         if(This->session->mute)
1481             silence_buffer(This, This->local_buffer, to_write_frames);
1482
1483         written_bytes = write(This->fd, This->local_buffer, to_write_bytes);
1484         if(written_bytes < 0){
1485             WARN("write failed: %d (%s)\n", errno, strerror(errno));
1486             return;
1487         }
1488         written_frames = written_bytes / This->fmt->nBlockAlign;
1489         This->in_oss_frames += written_frames;
1490     }
1491 }
1492
1493 static void oss_read_data(ACImpl *This)
1494 {
1495     UINT64 pos, readable;
1496     audio_buf_info bi;
1497     ssize_t nread;
1498
1499     if(ioctl(This->fd, SNDCTL_DSP_GETISPACE, &bi) < 0){
1500         WARN("GETISPACE failed: %d (%s)\n", errno, strerror(errno));
1501         return;
1502     }
1503
1504     pos = (This->held_frames + This->lcl_offs_frames) % This->bufsize_frames;
1505     readable = (This->bufsize_frames - pos) * This->fmt->nBlockAlign;
1506
1507     if(bi.bytes < readable)
1508         readable = bi.bytes;
1509
1510     nread = read(This->fd, This->local_buffer + pos * This->fmt->nBlockAlign,
1511             readable);
1512     if(nread < 0){
1513         WARN("read failed: %d (%s)\n", errno, strerror(errno));
1514         return;
1515     }
1516
1517     This->held_frames += nread / This->fmt->nBlockAlign;
1518
1519     if(This->held_frames > This->bufsize_frames){
1520         WARN("Overflow of unread data\n");
1521         This->lcl_offs_frames += This->held_frames;
1522         This->lcl_offs_frames %= This->bufsize_frames;
1523         This->held_frames = This->bufsize_frames;
1524     }
1525 }
1526
1527 static void CALLBACK oss_period_callback(void *user, BOOLEAN timer)
1528 {
1529     ACImpl *This = user;
1530
1531     EnterCriticalSection(&This->lock);
1532
1533     if(This->playing){
1534         if(This->dataflow == eRender && This->held_frames)
1535             oss_write_data(This);
1536         else if(This->dataflow == eCapture)
1537             oss_read_data(This);
1538     }
1539
1540     LeaveCriticalSection(&This->lock);
1541
1542     if(This->event)
1543         SetEvent(This->event);
1544 }
1545
1546 static HRESULT WINAPI AudioClient_Start(IAudioClient *iface)
1547 {
1548     ACImpl *This = impl_from_IAudioClient(iface);
1549
1550     TRACE("(%p)\n", This);
1551
1552     EnterCriticalSection(&This->lock);
1553
1554     if(!This->initted){
1555         LeaveCriticalSection(&This->lock);
1556         return AUDCLNT_E_NOT_INITIALIZED;
1557     }
1558
1559     if((This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) && !This->event){
1560         LeaveCriticalSection(&This->lock);
1561         return AUDCLNT_E_EVENTHANDLE_NOT_SET;
1562     }
1563
1564     if(This->playing){
1565         LeaveCriticalSection(&This->lock);
1566         return AUDCLNT_E_NOT_STOPPED;
1567     }
1568
1569     if(!This->timer){
1570         if(!CreateTimerQueueTimer(&This->timer, g_timer_q,
1571                     oss_period_callback, This, 0, This->period_us / 1000,
1572                     WT_EXECUTEINTIMERTHREAD))
1573             ERR("Unable to create period timer: %u\n", GetLastError());
1574     }
1575
1576     This->playing = TRUE;
1577
1578     LeaveCriticalSection(&This->lock);
1579
1580     return S_OK;
1581 }
1582
1583 static HRESULT WINAPI AudioClient_Stop(IAudioClient *iface)
1584 {
1585     ACImpl *This = impl_from_IAudioClient(iface);
1586
1587     TRACE("(%p)\n", This);
1588
1589     EnterCriticalSection(&This->lock);
1590
1591     if(!This->initted){
1592         LeaveCriticalSection(&This->lock);
1593         return AUDCLNT_E_NOT_INITIALIZED;
1594     }
1595
1596     if(!This->playing){
1597         LeaveCriticalSection(&This->lock);
1598         return S_FALSE;
1599     }
1600
1601     This->playing = FALSE;
1602     This->in_oss_frames = 0;
1603
1604     LeaveCriticalSection(&This->lock);
1605
1606     return S_OK;
1607 }
1608
1609 static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
1610 {
1611     ACImpl *This = impl_from_IAudioClient(iface);
1612
1613     TRACE("(%p)\n", This);
1614
1615     EnterCriticalSection(&This->lock);
1616
1617     if(!This->initted){
1618         LeaveCriticalSection(&This->lock);
1619         return AUDCLNT_E_NOT_INITIALIZED;
1620     }
1621
1622     if(This->playing){
1623         LeaveCriticalSection(&This->lock);
1624         return AUDCLNT_E_NOT_STOPPED;
1625     }
1626
1627     if(This->getbuf_last){
1628         LeaveCriticalSection(&This->lock);
1629         return AUDCLNT_E_BUFFER_OPERATION_PENDING;
1630     }
1631
1632     if(This->dataflow == eRender){
1633         This->written_frames = 0;
1634         This->last_pos_frames = 0;
1635     }else{
1636         This->written_frames += This->held_frames;
1637     }
1638     This->held_frames = 0;
1639     This->lcl_offs_frames = 0;
1640     This->in_oss_frames = 0;
1641
1642     LeaveCriticalSection(&This->lock);
1643
1644     return S_OK;
1645 }
1646
1647 static HRESULT WINAPI AudioClient_SetEventHandle(IAudioClient *iface,
1648         HANDLE event)
1649 {
1650     ACImpl *This = impl_from_IAudioClient(iface);
1651
1652     TRACE("(%p)->(%p)\n", This, event);
1653
1654     if(!event)
1655         return E_INVALIDARG;
1656
1657     EnterCriticalSection(&This->lock);
1658
1659     if(!This->initted){
1660         LeaveCriticalSection(&This->lock);
1661         return AUDCLNT_E_NOT_INITIALIZED;
1662     }
1663
1664     if(!(This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK)){
1665         LeaveCriticalSection(&This->lock);
1666         return AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED;
1667     }
1668
1669     if (This->event){
1670         LeaveCriticalSection(&This->lock);
1671         FIXME("called twice\n");
1672         return HRESULT_FROM_WIN32(ERROR_INVALID_NAME);
1673     }
1674
1675     This->event = event;
1676
1677     LeaveCriticalSection(&This->lock);
1678
1679     return S_OK;
1680 }
1681
1682 static HRESULT WINAPI AudioClient_GetService(IAudioClient *iface, REFIID riid,
1683         void **ppv)
1684 {
1685     ACImpl *This = impl_from_IAudioClient(iface);
1686
1687     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
1688
1689     if(!ppv)
1690         return E_POINTER;
1691     *ppv = NULL;
1692
1693     EnterCriticalSection(&This->lock);
1694
1695     if(!This->initted){
1696         LeaveCriticalSection(&This->lock);
1697         return AUDCLNT_E_NOT_INITIALIZED;
1698     }
1699
1700     if(IsEqualIID(riid, &IID_IAudioRenderClient)){
1701         if(This->dataflow != eRender){
1702             LeaveCriticalSection(&This->lock);
1703             return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
1704         }
1705         IAudioRenderClient_AddRef(&This->IAudioRenderClient_iface);
1706         *ppv = &This->IAudioRenderClient_iface;
1707     }else if(IsEqualIID(riid, &IID_IAudioCaptureClient)){
1708         if(This->dataflow != eCapture){
1709             LeaveCriticalSection(&This->lock);
1710             return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
1711         }
1712         IAudioCaptureClient_AddRef(&This->IAudioCaptureClient_iface);
1713         *ppv = &This->IAudioCaptureClient_iface;
1714     }else if(IsEqualIID(riid, &IID_IAudioClock)){
1715         IAudioClock_AddRef(&This->IAudioClock_iface);
1716         *ppv = &This->IAudioClock_iface;
1717     }else if(IsEqualIID(riid, &IID_IAudioStreamVolume)){
1718         IAudioStreamVolume_AddRef(&This->IAudioStreamVolume_iface);
1719         *ppv = &This->IAudioStreamVolume_iface;
1720     }else if(IsEqualIID(riid, &IID_IAudioSessionControl)){
1721         if(!This->session_wrapper){
1722             This->session_wrapper = AudioSessionWrapper_Create(This);
1723             if(!This->session_wrapper){
1724                 LeaveCriticalSection(&This->lock);
1725                 return E_OUTOFMEMORY;
1726             }
1727         }else
1728             IAudioSessionControl2_AddRef(&This->session_wrapper->IAudioSessionControl2_iface);
1729
1730         *ppv = &This->session_wrapper->IAudioSessionControl2_iface;
1731     }else if(IsEqualIID(riid, &IID_IChannelAudioVolume)){
1732         if(!This->session_wrapper){
1733             This->session_wrapper = AudioSessionWrapper_Create(This);
1734             if(!This->session_wrapper){
1735                 LeaveCriticalSection(&This->lock);
1736                 return E_OUTOFMEMORY;
1737             }
1738         }else
1739             IChannelAudioVolume_AddRef(&This->session_wrapper->IChannelAudioVolume_iface);
1740
1741         *ppv = &This->session_wrapper->IChannelAudioVolume_iface;
1742     }else if(IsEqualIID(riid, &IID_ISimpleAudioVolume)){
1743         if(!This->session_wrapper){
1744             This->session_wrapper = AudioSessionWrapper_Create(This);
1745             if(!This->session_wrapper){
1746                 LeaveCriticalSection(&This->lock);
1747                 return E_OUTOFMEMORY;
1748             }
1749         }else
1750             ISimpleAudioVolume_AddRef(&This->session_wrapper->ISimpleAudioVolume_iface);
1751
1752         *ppv = &This->session_wrapper->ISimpleAudioVolume_iface;
1753     }
1754
1755     if(*ppv){
1756         LeaveCriticalSection(&This->lock);
1757         return S_OK;
1758     }
1759
1760     LeaveCriticalSection(&This->lock);
1761
1762     FIXME("stub %s\n", debugstr_guid(riid));
1763     return E_NOINTERFACE;
1764 }
1765
1766 static const IAudioClientVtbl AudioClient_Vtbl =
1767 {
1768     AudioClient_QueryInterface,
1769     AudioClient_AddRef,
1770     AudioClient_Release,
1771     AudioClient_Initialize,
1772     AudioClient_GetBufferSize,
1773     AudioClient_GetStreamLatency,
1774     AudioClient_GetCurrentPadding,
1775     AudioClient_IsFormatSupported,
1776     AudioClient_GetMixFormat,
1777     AudioClient_GetDevicePeriod,
1778     AudioClient_Start,
1779     AudioClient_Stop,
1780     AudioClient_Reset,
1781     AudioClient_SetEventHandle,
1782     AudioClient_GetService
1783 };
1784
1785 static HRESULT WINAPI AudioRenderClient_QueryInterface(
1786         IAudioRenderClient *iface, REFIID riid, void **ppv)
1787 {
1788     ACImpl *This = impl_from_IAudioRenderClient(iface);
1789     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
1790
1791     if(!ppv)
1792         return E_POINTER;
1793     *ppv = NULL;
1794
1795     if(IsEqualIID(riid, &IID_IUnknown) ||
1796             IsEqualIID(riid, &IID_IAudioRenderClient))
1797         *ppv = iface;
1798     else if(IsEqualIID(riid, &IID_IMarshal))
1799         return IUnknown_QueryInterface(This->pUnkFTMarshal, riid, ppv);
1800     if(*ppv){
1801         IUnknown_AddRef((IUnknown*)*ppv);
1802         return S_OK;
1803     }
1804
1805     WARN("Unknown interface %s\n", debugstr_guid(riid));
1806     return E_NOINTERFACE;
1807 }
1808
1809 static ULONG WINAPI AudioRenderClient_AddRef(IAudioRenderClient *iface)
1810 {
1811     ACImpl *This = impl_from_IAudioRenderClient(iface);
1812     return AudioClient_AddRef(&This->IAudioClient_iface);
1813 }
1814
1815 static ULONG WINAPI AudioRenderClient_Release(IAudioRenderClient *iface)
1816 {
1817     ACImpl *This = impl_from_IAudioRenderClient(iface);
1818     return AudioClient_Release(&This->IAudioClient_iface);
1819 }
1820
1821 static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
1822         UINT32 frames, BYTE **data)
1823 {
1824     ACImpl *This = impl_from_IAudioRenderClient(iface);
1825     UINT32 write_pos;
1826
1827     TRACE("(%p)->(%u, %p)\n", This, frames, data);
1828
1829     if(!data)
1830         return E_POINTER;
1831
1832     *data = NULL;
1833
1834     EnterCriticalSection(&This->lock);
1835
1836     if(This->getbuf_last){
1837         LeaveCriticalSection(&This->lock);
1838         return AUDCLNT_E_OUT_OF_ORDER;
1839     }
1840
1841     if(!frames){
1842         LeaveCriticalSection(&This->lock);
1843         return S_OK;
1844     }
1845
1846     if(This->held_frames + frames > This->bufsize_frames){
1847         LeaveCriticalSection(&This->lock);
1848         return AUDCLNT_E_BUFFER_TOO_LARGE;
1849     }
1850
1851     write_pos =
1852         (This->lcl_offs_frames + This->held_frames) % This->bufsize_frames;
1853     if(write_pos + frames > This->bufsize_frames){
1854         if(This->tmp_buffer_frames < frames){
1855             HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
1856             This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
1857                     frames * This->fmt->nBlockAlign);
1858             if(!This->tmp_buffer){
1859                 LeaveCriticalSection(&This->lock);
1860                 return E_OUTOFMEMORY;
1861             }
1862             This->tmp_buffer_frames = frames;
1863         }
1864         *data = This->tmp_buffer;
1865         This->getbuf_last = -frames;
1866     }else{
1867         *data = This->local_buffer + write_pos * This->fmt->nBlockAlign;
1868         This->getbuf_last = frames;
1869     }
1870
1871     silence_buffer(This, *data, frames);
1872
1873     LeaveCriticalSection(&This->lock);
1874
1875     return S_OK;
1876 }
1877
1878 static void oss_wrap_buffer(ACImpl *This, BYTE *buffer, UINT32 written_frames)
1879 {
1880     UINT32 write_offs_frames =
1881         (This->lcl_offs_frames + This->held_frames) % This->bufsize_frames;
1882     UINT32 write_offs_bytes = write_offs_frames * This->fmt->nBlockAlign;
1883     UINT32 chunk_frames = This->bufsize_frames - write_offs_frames;
1884     UINT32 chunk_bytes = chunk_frames * This->fmt->nBlockAlign;
1885     UINT32 written_bytes = written_frames * This->fmt->nBlockAlign;
1886
1887     if(written_bytes <= chunk_bytes){
1888         memcpy(This->local_buffer + write_offs_bytes, buffer, written_bytes);
1889     }else{
1890         memcpy(This->local_buffer + write_offs_bytes, buffer, chunk_bytes);
1891         memcpy(This->local_buffer, buffer + chunk_bytes,
1892                 written_bytes - chunk_bytes);
1893     }
1894 }
1895
1896 static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
1897         IAudioRenderClient *iface, UINT32 written_frames, DWORD flags)
1898 {
1899     ACImpl *This = impl_from_IAudioRenderClient(iface);
1900     BYTE *buffer;
1901
1902     TRACE("(%p)->(%u, %x)\n", This, written_frames, flags);
1903
1904     EnterCriticalSection(&This->lock);
1905
1906     if(!written_frames){
1907         This->getbuf_last = 0;
1908         LeaveCriticalSection(&This->lock);
1909         return S_OK;
1910     }
1911
1912     if(!This->getbuf_last){
1913         LeaveCriticalSection(&This->lock);
1914         return AUDCLNT_E_OUT_OF_ORDER;
1915     }
1916
1917     if(written_frames > (This->getbuf_last >= 0 ? This->getbuf_last : -This->getbuf_last)){
1918         LeaveCriticalSection(&This->lock);
1919         return AUDCLNT_E_INVALID_SIZE;
1920     }
1921
1922     if(This->getbuf_last >= 0)
1923         buffer = This->local_buffer + This->fmt->nBlockAlign *
1924           ((This->lcl_offs_frames + This->held_frames) % This->bufsize_frames);
1925     else
1926         buffer = This->tmp_buffer;
1927
1928     if(flags & AUDCLNT_BUFFERFLAGS_SILENT)
1929         silence_buffer(This, buffer, written_frames);
1930
1931     if(This->getbuf_last < 0)
1932         oss_wrap_buffer(This, buffer, written_frames);
1933
1934     This->held_frames += written_frames;
1935     This->written_frames += written_frames;
1936     This->getbuf_last = 0;
1937
1938     LeaveCriticalSection(&This->lock);
1939
1940     return S_OK;
1941 }
1942
1943 static const IAudioRenderClientVtbl AudioRenderClient_Vtbl = {
1944     AudioRenderClient_QueryInterface,
1945     AudioRenderClient_AddRef,
1946     AudioRenderClient_Release,
1947     AudioRenderClient_GetBuffer,
1948     AudioRenderClient_ReleaseBuffer
1949 };
1950
1951 static HRESULT WINAPI AudioCaptureClient_QueryInterface(
1952         IAudioCaptureClient *iface, REFIID riid, void **ppv)
1953 {
1954     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1955     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
1956
1957     if(!ppv)
1958         return E_POINTER;
1959     *ppv = NULL;
1960
1961     if(IsEqualIID(riid, &IID_IUnknown) ||
1962             IsEqualIID(riid, &IID_IAudioCaptureClient))
1963         *ppv = iface;
1964     else if(IsEqualIID(riid, &IID_IMarshal))
1965         return IUnknown_QueryInterface(This->pUnkFTMarshal, riid, ppv);
1966     if(*ppv){
1967         IUnknown_AddRef((IUnknown*)*ppv);
1968         return S_OK;
1969     }
1970
1971     WARN("Unknown interface %s\n", debugstr_guid(riid));
1972     return E_NOINTERFACE;
1973 }
1974
1975 static ULONG WINAPI AudioCaptureClient_AddRef(IAudioCaptureClient *iface)
1976 {
1977     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1978     return IAudioClient_AddRef(&This->IAudioClient_iface);
1979 }
1980
1981 static ULONG WINAPI AudioCaptureClient_Release(IAudioCaptureClient *iface)
1982 {
1983     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1984     return IAudioClient_Release(&This->IAudioClient_iface);
1985 }
1986
1987 static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
1988         BYTE **data, UINT32 *frames, DWORD *flags, UINT64 *devpos,
1989         UINT64 *qpcpos)
1990 {
1991     ACImpl *This = impl_from_IAudioCaptureClient(iface);
1992
1993     TRACE("(%p)->(%p, %p, %p, %p, %p)\n", This, data, frames, flags,
1994             devpos, qpcpos);
1995
1996     if(!data || !frames || !flags)
1997         return E_POINTER;
1998
1999     EnterCriticalSection(&This->lock);
2000
2001     if(This->getbuf_last){
2002         LeaveCriticalSection(&This->lock);
2003         return AUDCLNT_E_OUT_OF_ORDER;
2004     }
2005
2006     if(This->held_frames < This->period_frames){
2007         *frames = 0;
2008         LeaveCriticalSection(&This->lock);
2009         return AUDCLNT_S_BUFFER_EMPTY;
2010     }
2011
2012     *flags = 0;
2013
2014     *frames = This->period_frames;
2015
2016     if(This->lcl_offs_frames + *frames > This->bufsize_frames){
2017         UINT32 chunk_bytes, offs_bytes, frames_bytes;
2018         if(This->tmp_buffer_frames < *frames){
2019             HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
2020             This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
2021                     *frames * This->fmt->nBlockAlign);
2022             if(!This->tmp_buffer){
2023                 LeaveCriticalSection(&This->lock);
2024                 return E_OUTOFMEMORY;
2025             }
2026             This->tmp_buffer_frames = *frames;
2027         }
2028
2029         *data = This->tmp_buffer;
2030         chunk_bytes = (This->bufsize_frames - This->lcl_offs_frames) *
2031             This->fmt->nBlockAlign;
2032         offs_bytes = This->lcl_offs_frames * This->fmt->nBlockAlign;
2033         frames_bytes = *frames * This->fmt->nBlockAlign;
2034         memcpy(This->tmp_buffer, This->local_buffer + offs_bytes, chunk_bytes);
2035         memcpy(This->tmp_buffer + chunk_bytes, This->local_buffer,
2036                 frames_bytes - chunk_bytes);
2037     }else
2038         *data = This->local_buffer +
2039             This->lcl_offs_frames * This->fmt->nBlockAlign;
2040
2041     This->getbuf_last = *frames;
2042
2043     if(devpos)
2044        *devpos = This->written_frames;
2045     if(qpcpos){
2046         LARGE_INTEGER stamp, freq;
2047         QueryPerformanceCounter(&stamp);
2048         QueryPerformanceFrequency(&freq);
2049         *qpcpos = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
2050     }
2051
2052     LeaveCriticalSection(&This->lock);
2053
2054     return *frames ? S_OK : AUDCLNT_S_BUFFER_EMPTY;
2055 }
2056
2057 static HRESULT WINAPI AudioCaptureClient_ReleaseBuffer(
2058         IAudioCaptureClient *iface, UINT32 done)
2059 {
2060     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2061
2062     TRACE("(%p)->(%u)\n", This, done);
2063
2064     EnterCriticalSection(&This->lock);
2065
2066     if(!done){
2067         This->getbuf_last = 0;
2068         LeaveCriticalSection(&This->lock);
2069         return S_OK;
2070     }
2071
2072     if(!This->getbuf_last){
2073         LeaveCriticalSection(&This->lock);
2074         return AUDCLNT_E_OUT_OF_ORDER;
2075     }
2076
2077     if(This->getbuf_last != done){
2078         LeaveCriticalSection(&This->lock);
2079         return AUDCLNT_E_INVALID_SIZE;
2080     }
2081
2082     This->written_frames += done;
2083     This->held_frames -= done;
2084     This->lcl_offs_frames += done;
2085     This->lcl_offs_frames %= This->bufsize_frames;
2086     This->getbuf_last = 0;
2087
2088     LeaveCriticalSection(&This->lock);
2089
2090     return S_OK;
2091 }
2092
2093 static HRESULT WINAPI AudioCaptureClient_GetNextPacketSize(
2094         IAudioCaptureClient *iface, UINT32 *frames)
2095 {
2096     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2097
2098     TRACE("(%p)->(%p)\n", This, frames);
2099
2100     if(!frames)
2101         return E_POINTER;
2102
2103     EnterCriticalSection(&This->lock);
2104
2105     *frames = This->held_frames < This->period_frames ? 0 : This->period_frames;
2106
2107     LeaveCriticalSection(&This->lock);
2108
2109     return S_OK;
2110 }
2111
2112 static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl =
2113 {
2114     AudioCaptureClient_QueryInterface,
2115     AudioCaptureClient_AddRef,
2116     AudioCaptureClient_Release,
2117     AudioCaptureClient_GetBuffer,
2118     AudioCaptureClient_ReleaseBuffer,
2119     AudioCaptureClient_GetNextPacketSize
2120 };
2121
2122 static HRESULT WINAPI AudioClock_QueryInterface(IAudioClock *iface,
2123         REFIID riid, void **ppv)
2124 {
2125     ACImpl *This = impl_from_IAudioClock(iface);
2126
2127     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2128
2129     if(!ppv)
2130         return E_POINTER;
2131     *ppv = NULL;
2132
2133     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClock))
2134         *ppv = iface;
2135     else if(IsEqualIID(riid, &IID_IAudioClock2))
2136         *ppv = &This->IAudioClock2_iface;
2137     if(*ppv){
2138         IUnknown_AddRef((IUnknown*)*ppv);
2139         return S_OK;
2140     }
2141
2142     WARN("Unknown interface %s\n", debugstr_guid(riid));
2143     return E_NOINTERFACE;
2144 }
2145
2146 static ULONG WINAPI AudioClock_AddRef(IAudioClock *iface)
2147 {
2148     ACImpl *This = impl_from_IAudioClock(iface);
2149     return IAudioClient_AddRef(&This->IAudioClient_iface);
2150 }
2151
2152 static ULONG WINAPI AudioClock_Release(IAudioClock *iface)
2153 {
2154     ACImpl *This = impl_from_IAudioClock(iface);
2155     return IAudioClient_Release(&This->IAudioClient_iface);
2156 }
2157
2158 static HRESULT WINAPI AudioClock_GetFrequency(IAudioClock *iface, UINT64 *freq)
2159 {
2160     ACImpl *This = impl_from_IAudioClock(iface);
2161
2162     TRACE("(%p)->(%p)\n", This, freq);
2163
2164     if(This->share == AUDCLNT_SHAREMODE_SHARED)
2165         *freq = (UINT64)This->fmt->nSamplesPerSec * This->fmt->nBlockAlign;
2166     else
2167         *freq = This->fmt->nSamplesPerSec;
2168
2169     return S_OK;
2170 }
2171
2172 static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
2173         UINT64 *qpctime)
2174 {
2175     ACImpl *This = impl_from_IAudioClock(iface);
2176
2177     TRACE("(%p)->(%p, %p)\n", This, pos, qpctime);
2178
2179     if(!pos)
2180         return E_POINTER;
2181
2182     EnterCriticalSection(&This->lock);
2183
2184     if(This->dataflow == eRender){
2185         *pos = This->written_frames - This->held_frames;
2186         if(*pos < This->last_pos_frames)
2187             *pos = This->last_pos_frames;
2188     }else if(This->dataflow == eCapture){
2189         audio_buf_info bi;
2190         UINT32 held;
2191
2192         if(ioctl(This->fd, SNDCTL_DSP_GETISPACE, &bi) < 0){
2193             TRACE("GETISPACE failed: %d (%s)\n", errno, strerror(errno));
2194             held = 0;
2195         }else{
2196             if(bi.bytes <= bi.fragsize)
2197                 held = 0;
2198             else
2199                 held = bi.bytes / This->fmt->nBlockAlign;
2200         }
2201
2202         *pos = This->written_frames + held;
2203     }
2204
2205     This->last_pos_frames = *pos;
2206
2207     TRACE("returning: %s\n", wine_dbgstr_longlong(*pos));
2208     if(This->share == AUDCLNT_SHAREMODE_SHARED)
2209         *pos *= This->fmt->nBlockAlign;
2210
2211     LeaveCriticalSection(&This->lock);
2212
2213     if(qpctime){
2214         LARGE_INTEGER stamp, freq;
2215         QueryPerformanceCounter(&stamp);
2216         QueryPerformanceFrequency(&freq);
2217         *qpctime = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
2218     }
2219
2220     return S_OK;
2221 }
2222
2223 static HRESULT WINAPI AudioClock_GetCharacteristics(IAudioClock *iface,
2224         DWORD *chars)
2225 {
2226     ACImpl *This = impl_from_IAudioClock(iface);
2227
2228     TRACE("(%p)->(%p)\n", This, chars);
2229
2230     if(!chars)
2231         return E_POINTER;
2232
2233     *chars = AUDIOCLOCK_CHARACTERISTIC_FIXED_FREQ;
2234
2235     return S_OK;
2236 }
2237
2238 static const IAudioClockVtbl AudioClock_Vtbl =
2239 {
2240     AudioClock_QueryInterface,
2241     AudioClock_AddRef,
2242     AudioClock_Release,
2243     AudioClock_GetFrequency,
2244     AudioClock_GetPosition,
2245     AudioClock_GetCharacteristics
2246 };
2247
2248 static HRESULT WINAPI AudioClock2_QueryInterface(IAudioClock2 *iface,
2249         REFIID riid, void **ppv)
2250 {
2251     ACImpl *This = impl_from_IAudioClock2(iface);
2252     return IAudioClock_QueryInterface(&This->IAudioClock_iface, riid, ppv);
2253 }
2254
2255 static ULONG WINAPI AudioClock2_AddRef(IAudioClock2 *iface)
2256 {
2257     ACImpl *This = impl_from_IAudioClock2(iface);
2258     return IAudioClient_AddRef(&This->IAudioClient_iface);
2259 }
2260
2261 static ULONG WINAPI AudioClock2_Release(IAudioClock2 *iface)
2262 {
2263     ACImpl *This = impl_from_IAudioClock2(iface);
2264     return IAudioClient_Release(&This->IAudioClient_iface);
2265 }
2266
2267 static HRESULT WINAPI AudioClock2_GetDevicePosition(IAudioClock2 *iface,
2268         UINT64 *pos, UINT64 *qpctime)
2269 {
2270     ACImpl *This = impl_from_IAudioClock2(iface);
2271
2272     FIXME("(%p)->(%p, %p)\n", This, pos, qpctime);
2273
2274     return E_NOTIMPL;
2275 }
2276
2277 static const IAudioClock2Vtbl AudioClock2_Vtbl =
2278 {
2279     AudioClock2_QueryInterface,
2280     AudioClock2_AddRef,
2281     AudioClock2_Release,
2282     AudioClock2_GetDevicePosition
2283 };
2284
2285 static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client)
2286 {
2287     AudioSessionWrapper *ret;
2288
2289     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
2290             sizeof(AudioSessionWrapper));
2291     if(!ret)
2292         return NULL;
2293
2294     ret->IAudioSessionControl2_iface.lpVtbl = &AudioSessionControl2_Vtbl;
2295     ret->ISimpleAudioVolume_iface.lpVtbl = &SimpleAudioVolume_Vtbl;
2296     ret->IChannelAudioVolume_iface.lpVtbl = &ChannelAudioVolume_Vtbl;
2297
2298     ret->ref = 1;
2299
2300     ret->client = client;
2301     if(client){
2302         ret->session = client->session;
2303         AudioClient_AddRef(&client->IAudioClient_iface);
2304     }
2305
2306     return ret;
2307 }
2308
2309 static HRESULT WINAPI AudioSessionControl_QueryInterface(
2310         IAudioSessionControl2 *iface, REFIID riid, void **ppv)
2311 {
2312     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2313
2314     if(!ppv)
2315         return E_POINTER;
2316     *ppv = NULL;
2317
2318     if(IsEqualIID(riid, &IID_IUnknown) ||
2319             IsEqualIID(riid, &IID_IAudioSessionControl) ||
2320             IsEqualIID(riid, &IID_IAudioSessionControl2))
2321         *ppv = iface;
2322     if(*ppv){
2323         IUnknown_AddRef((IUnknown*)*ppv);
2324         return S_OK;
2325     }
2326
2327     WARN("Unknown interface %s\n", debugstr_guid(riid));
2328     return E_NOINTERFACE;
2329 }
2330
2331 static ULONG WINAPI AudioSessionControl_AddRef(IAudioSessionControl2 *iface)
2332 {
2333     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2334     ULONG ref;
2335     ref = InterlockedIncrement(&This->ref);
2336     TRACE("(%p) Refcount now %u\n", This, ref);
2337     return ref;
2338 }
2339
2340 static ULONG WINAPI AudioSessionControl_Release(IAudioSessionControl2 *iface)
2341 {
2342     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2343     ULONG ref;
2344     ref = InterlockedDecrement(&This->ref);
2345     TRACE("(%p) Refcount now %u\n", This, ref);
2346     if(!ref){
2347         if(This->client){
2348             EnterCriticalSection(&This->client->lock);
2349             This->client->session_wrapper = NULL;
2350             LeaveCriticalSection(&This->client->lock);
2351             AudioClient_Release(&This->client->IAudioClient_iface);
2352         }
2353         HeapFree(GetProcessHeap(), 0, This);
2354     }
2355     return ref;
2356 }
2357
2358 static HRESULT WINAPI AudioSessionControl_GetState(IAudioSessionControl2 *iface,
2359         AudioSessionState *state)
2360 {
2361     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2362     ACImpl *client;
2363
2364     TRACE("(%p)->(%p)\n", This, state);
2365
2366     if(!state)
2367         return NULL_PTR_ERR;
2368
2369     EnterCriticalSection(&g_sessions_lock);
2370
2371     if(list_empty(&This->session->clients)){
2372         *state = AudioSessionStateExpired;
2373         LeaveCriticalSection(&g_sessions_lock);
2374         return S_OK;
2375     }
2376
2377     LIST_FOR_EACH_ENTRY(client, &This->session->clients, ACImpl, entry){
2378         EnterCriticalSection(&client->lock);
2379         if(client->playing){
2380             *state = AudioSessionStateActive;
2381             LeaveCriticalSection(&client->lock);
2382             LeaveCriticalSection(&g_sessions_lock);
2383             return S_OK;
2384         }
2385         LeaveCriticalSection(&client->lock);
2386     }
2387
2388     LeaveCriticalSection(&g_sessions_lock);
2389
2390     *state = AudioSessionStateInactive;
2391
2392     return S_OK;
2393 }
2394
2395 static HRESULT WINAPI AudioSessionControl_GetDisplayName(
2396         IAudioSessionControl2 *iface, WCHAR **name)
2397 {
2398     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2399
2400     FIXME("(%p)->(%p) - stub\n", This, name);
2401
2402     return E_NOTIMPL;
2403 }
2404
2405 static HRESULT WINAPI AudioSessionControl_SetDisplayName(
2406         IAudioSessionControl2 *iface, const WCHAR *name, const GUID *session)
2407 {
2408     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2409
2410     FIXME("(%p)->(%p, %s) - stub\n", This, name, debugstr_guid(session));
2411
2412     return E_NOTIMPL;
2413 }
2414
2415 static HRESULT WINAPI AudioSessionControl_GetIconPath(
2416         IAudioSessionControl2 *iface, WCHAR **path)
2417 {
2418     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2419
2420     FIXME("(%p)->(%p) - stub\n", This, path);
2421
2422     return E_NOTIMPL;
2423 }
2424
2425 static HRESULT WINAPI AudioSessionControl_SetIconPath(
2426         IAudioSessionControl2 *iface, const WCHAR *path, const GUID *session)
2427 {
2428     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2429
2430     FIXME("(%p)->(%p, %s) - stub\n", This, path, debugstr_guid(session));
2431
2432     return E_NOTIMPL;
2433 }
2434
2435 static HRESULT WINAPI AudioSessionControl_GetGroupingParam(
2436         IAudioSessionControl2 *iface, GUID *group)
2437 {
2438     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2439
2440     FIXME("(%p)->(%p) - stub\n", This, group);
2441
2442     return E_NOTIMPL;
2443 }
2444
2445 static HRESULT WINAPI AudioSessionControl_SetGroupingParam(
2446         IAudioSessionControl2 *iface, const GUID *group, const GUID *session)
2447 {
2448     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2449
2450     FIXME("(%p)->(%s, %s) - stub\n", This, debugstr_guid(group),
2451             debugstr_guid(session));
2452
2453     return E_NOTIMPL;
2454 }
2455
2456 static HRESULT WINAPI AudioSessionControl_RegisterAudioSessionNotification(
2457         IAudioSessionControl2 *iface, IAudioSessionEvents *events)
2458 {
2459     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2460
2461     FIXME("(%p)->(%p) - stub\n", This, events);
2462
2463     return S_OK;
2464 }
2465
2466 static HRESULT WINAPI AudioSessionControl_UnregisterAudioSessionNotification(
2467         IAudioSessionControl2 *iface, IAudioSessionEvents *events)
2468 {
2469     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2470
2471     FIXME("(%p)->(%p) - stub\n", This, events);
2472
2473     return S_OK;
2474 }
2475
2476 static HRESULT WINAPI AudioSessionControl_GetSessionIdentifier(
2477         IAudioSessionControl2 *iface, WCHAR **id)
2478 {
2479     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2480
2481     FIXME("(%p)->(%p) - stub\n", This, id);
2482
2483     return E_NOTIMPL;
2484 }
2485
2486 static HRESULT WINAPI AudioSessionControl_GetSessionInstanceIdentifier(
2487         IAudioSessionControl2 *iface, WCHAR **id)
2488 {
2489     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2490
2491     FIXME("(%p)->(%p) - stub\n", This, id);
2492
2493     return E_NOTIMPL;
2494 }
2495
2496 static HRESULT WINAPI AudioSessionControl_GetProcessId(
2497         IAudioSessionControl2 *iface, DWORD *pid)
2498 {
2499     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2500
2501     TRACE("(%p)->(%p)\n", This, pid);
2502
2503     if(!pid)
2504         return E_POINTER;
2505
2506     *pid = GetCurrentProcessId();
2507
2508     return S_OK;
2509 }
2510
2511 static HRESULT WINAPI AudioSessionControl_IsSystemSoundsSession(
2512         IAudioSessionControl2 *iface)
2513 {
2514     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2515
2516     TRACE("(%p)\n", This);
2517
2518     return S_FALSE;
2519 }
2520
2521 static HRESULT WINAPI AudioSessionControl_SetDuckingPreference(
2522         IAudioSessionControl2 *iface, BOOL optout)
2523 {
2524     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2525
2526     TRACE("(%p)->(%d)\n", This, optout);
2527
2528     return S_OK;
2529 }
2530
2531 static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl =
2532 {
2533     AudioSessionControl_QueryInterface,
2534     AudioSessionControl_AddRef,
2535     AudioSessionControl_Release,
2536     AudioSessionControl_GetState,
2537     AudioSessionControl_GetDisplayName,
2538     AudioSessionControl_SetDisplayName,
2539     AudioSessionControl_GetIconPath,
2540     AudioSessionControl_SetIconPath,
2541     AudioSessionControl_GetGroupingParam,
2542     AudioSessionControl_SetGroupingParam,
2543     AudioSessionControl_RegisterAudioSessionNotification,
2544     AudioSessionControl_UnregisterAudioSessionNotification,
2545     AudioSessionControl_GetSessionIdentifier,
2546     AudioSessionControl_GetSessionInstanceIdentifier,
2547     AudioSessionControl_GetProcessId,
2548     AudioSessionControl_IsSystemSoundsSession,
2549     AudioSessionControl_SetDuckingPreference
2550 };
2551
2552 static HRESULT WINAPI SimpleAudioVolume_QueryInterface(
2553         ISimpleAudioVolume *iface, REFIID riid, void **ppv)
2554 {
2555     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2556
2557     if(!ppv)
2558         return E_POINTER;
2559     *ppv = NULL;
2560
2561     if(IsEqualIID(riid, &IID_IUnknown) ||
2562             IsEqualIID(riid, &IID_ISimpleAudioVolume))
2563         *ppv = iface;
2564     if(*ppv){
2565         IUnknown_AddRef((IUnknown*)*ppv);
2566         return S_OK;
2567     }
2568
2569     WARN("Unknown interface %s\n", debugstr_guid(riid));
2570     return E_NOINTERFACE;
2571 }
2572
2573 static ULONG WINAPI SimpleAudioVolume_AddRef(ISimpleAudioVolume *iface)
2574 {
2575     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2576     return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
2577 }
2578
2579 static ULONG WINAPI SimpleAudioVolume_Release(ISimpleAudioVolume *iface)
2580 {
2581     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2582     return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
2583 }
2584
2585 static HRESULT WINAPI SimpleAudioVolume_SetMasterVolume(
2586         ISimpleAudioVolume *iface, float level, const GUID *context)
2587 {
2588     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2589     AudioSession *session = This->session;
2590
2591     TRACE("(%p)->(%f, %s)\n", session, level, wine_dbgstr_guid(context));
2592
2593     if(level < 0.f || level > 1.f)
2594         return E_INVALIDARG;
2595
2596     if(context)
2597         FIXME("Notifications not supported yet\n");
2598
2599     EnterCriticalSection(&session->lock);
2600
2601     session->master_vol = level;
2602
2603     TRACE("OSS doesn't support setting volume\n");
2604
2605     LeaveCriticalSection(&session->lock);
2606
2607     return S_OK;
2608 }
2609
2610 static HRESULT WINAPI SimpleAudioVolume_GetMasterVolume(
2611         ISimpleAudioVolume *iface, float *level)
2612 {
2613     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2614     AudioSession *session = This->session;
2615
2616     TRACE("(%p)->(%p)\n", session, level);
2617
2618     if(!level)
2619         return NULL_PTR_ERR;
2620
2621     *level = session->master_vol;
2622
2623     return S_OK;
2624 }
2625
2626 static HRESULT WINAPI SimpleAudioVolume_SetMute(ISimpleAudioVolume *iface,
2627         BOOL mute, const GUID *context)
2628 {
2629     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2630     AudioSession *session = This->session;
2631
2632     TRACE("(%p)->(%u, %p)\n", session, mute, context);
2633
2634     EnterCriticalSection(&session->lock);
2635
2636     session->mute = mute;
2637
2638     LeaveCriticalSection(&session->lock);
2639
2640     return S_OK;
2641 }
2642
2643 static HRESULT WINAPI SimpleAudioVolume_GetMute(ISimpleAudioVolume *iface,
2644         BOOL *mute)
2645 {
2646     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2647     AudioSession *session = This->session;
2648
2649     TRACE("(%p)->(%p)\n", session, mute);
2650
2651     if(!mute)
2652         return NULL_PTR_ERR;
2653
2654     *mute = This->session->mute;
2655
2656     return S_OK;
2657 }
2658
2659 static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl  =
2660 {
2661     SimpleAudioVolume_QueryInterface,
2662     SimpleAudioVolume_AddRef,
2663     SimpleAudioVolume_Release,
2664     SimpleAudioVolume_SetMasterVolume,
2665     SimpleAudioVolume_GetMasterVolume,
2666     SimpleAudioVolume_SetMute,
2667     SimpleAudioVolume_GetMute
2668 };
2669
2670 static HRESULT WINAPI AudioStreamVolume_QueryInterface(
2671         IAudioStreamVolume *iface, REFIID riid, void **ppv)
2672 {
2673     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2674
2675     if(!ppv)
2676         return E_POINTER;
2677     *ppv = NULL;
2678
2679     if(IsEqualIID(riid, &IID_IUnknown) ||
2680             IsEqualIID(riid, &IID_IAudioStreamVolume))
2681         *ppv = iface;
2682     if(*ppv){
2683         IUnknown_AddRef((IUnknown*)*ppv);
2684         return S_OK;
2685     }
2686
2687     WARN("Unknown interface %s\n", debugstr_guid(riid));
2688     return E_NOINTERFACE;
2689 }
2690
2691 static ULONG WINAPI AudioStreamVolume_AddRef(IAudioStreamVolume *iface)
2692 {
2693     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2694     return IAudioClient_AddRef(&This->IAudioClient_iface);
2695 }
2696
2697 static ULONG WINAPI AudioStreamVolume_Release(IAudioStreamVolume *iface)
2698 {
2699     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2700     return IAudioClient_Release(&This->IAudioClient_iface);
2701 }
2702
2703 static HRESULT WINAPI AudioStreamVolume_GetChannelCount(
2704         IAudioStreamVolume *iface, UINT32 *out)
2705 {
2706     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2707
2708     TRACE("(%p)->(%p)\n", This, out);
2709
2710     if(!out)
2711         return E_POINTER;
2712
2713     *out = This->fmt->nChannels;
2714
2715     return S_OK;
2716 }
2717
2718 static HRESULT WINAPI AudioStreamVolume_SetChannelVolume(
2719         IAudioStreamVolume *iface, UINT32 index, float level)
2720 {
2721     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2722
2723     TRACE("(%p)->(%d, %f)\n", This, index, level);
2724
2725     if(level < 0.f || level > 1.f)
2726         return E_INVALIDARG;
2727
2728     if(index >= This->fmt->nChannels)
2729         return E_INVALIDARG;
2730
2731     EnterCriticalSection(&This->lock);
2732
2733     This->vols[index] = level;
2734
2735     TRACE("OSS doesn't support setting volume\n");
2736
2737     LeaveCriticalSection(&This->lock);
2738
2739     return S_OK;
2740 }
2741
2742 static HRESULT WINAPI AudioStreamVolume_GetChannelVolume(
2743         IAudioStreamVolume *iface, UINT32 index, float *level)
2744 {
2745     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2746
2747     TRACE("(%p)->(%d, %p)\n", This, index, level);
2748
2749     if(!level)
2750         return E_POINTER;
2751
2752     if(index >= This->fmt->nChannels)
2753         return E_INVALIDARG;
2754
2755     *level = This->vols[index];
2756
2757     return S_OK;
2758 }
2759
2760 static HRESULT WINAPI AudioStreamVolume_SetAllVolumes(
2761         IAudioStreamVolume *iface, UINT32 count, const float *levels)
2762 {
2763     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2764     int i;
2765
2766     TRACE("(%p)->(%d, %p)\n", This, count, levels);
2767
2768     if(!levels)
2769         return E_POINTER;
2770
2771     if(count != This->fmt->nChannels)
2772         return E_INVALIDARG;
2773
2774     EnterCriticalSection(&This->lock);
2775
2776     for(i = 0; i < count; ++i)
2777         This->vols[i] = levels[i];
2778
2779     TRACE("OSS doesn't support setting volume\n");
2780
2781     LeaveCriticalSection(&This->lock);
2782
2783     return S_OK;
2784 }
2785
2786 static HRESULT WINAPI AudioStreamVolume_GetAllVolumes(
2787         IAudioStreamVolume *iface, UINT32 count, float *levels)
2788 {
2789     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2790     int i;
2791
2792     TRACE("(%p)->(%d, %p)\n", This, count, levels);
2793
2794     if(!levels)
2795         return E_POINTER;
2796
2797     if(count != This->fmt->nChannels)
2798         return E_INVALIDARG;
2799
2800     EnterCriticalSection(&This->lock);
2801
2802     for(i = 0; i < count; ++i)
2803         levels[i] = This->vols[i];
2804
2805     LeaveCriticalSection(&This->lock);
2806
2807     return S_OK;
2808 }
2809
2810 static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl =
2811 {
2812     AudioStreamVolume_QueryInterface,
2813     AudioStreamVolume_AddRef,
2814     AudioStreamVolume_Release,
2815     AudioStreamVolume_GetChannelCount,
2816     AudioStreamVolume_SetChannelVolume,
2817     AudioStreamVolume_GetChannelVolume,
2818     AudioStreamVolume_SetAllVolumes,
2819     AudioStreamVolume_GetAllVolumes
2820 };
2821
2822 static HRESULT WINAPI ChannelAudioVolume_QueryInterface(
2823         IChannelAudioVolume *iface, REFIID riid, void **ppv)
2824 {
2825     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2826
2827     if(!ppv)
2828         return E_POINTER;
2829     *ppv = NULL;
2830
2831     if(IsEqualIID(riid, &IID_IUnknown) ||
2832             IsEqualIID(riid, &IID_IChannelAudioVolume))
2833         *ppv = iface;
2834     if(*ppv){
2835         IUnknown_AddRef((IUnknown*)*ppv);
2836         return S_OK;
2837     }
2838
2839     WARN("Unknown interface %s\n", debugstr_guid(riid));
2840     return E_NOINTERFACE;
2841 }
2842
2843 static ULONG WINAPI ChannelAudioVolume_AddRef(IChannelAudioVolume *iface)
2844 {
2845     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2846     return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
2847 }
2848
2849 static ULONG WINAPI ChannelAudioVolume_Release(IChannelAudioVolume *iface)
2850 {
2851     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2852     return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
2853 }
2854
2855 static HRESULT WINAPI ChannelAudioVolume_GetChannelCount(
2856         IChannelAudioVolume *iface, UINT32 *out)
2857 {
2858     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2859     AudioSession *session = This->session;
2860
2861     TRACE("(%p)->(%p)\n", session, out);
2862
2863     if(!out)
2864         return NULL_PTR_ERR;
2865
2866     *out = session->channel_count;
2867
2868     return S_OK;
2869 }
2870
2871 static HRESULT WINAPI ChannelAudioVolume_SetChannelVolume(
2872         IChannelAudioVolume *iface, UINT32 index, float level,
2873         const GUID *context)
2874 {
2875     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2876     AudioSession *session = This->session;
2877
2878     TRACE("(%p)->(%d, %f, %s)\n", session, index, level,
2879             wine_dbgstr_guid(context));
2880
2881     if(level < 0.f || level > 1.f)
2882         return E_INVALIDARG;
2883
2884     if(index >= session->channel_count)
2885         return E_INVALIDARG;
2886
2887     if(context)
2888         FIXME("Notifications not supported yet\n");
2889
2890     EnterCriticalSection(&session->lock);
2891
2892     session->channel_vols[index] = level;
2893
2894     TRACE("OSS doesn't support setting volume\n");
2895
2896     LeaveCriticalSection(&session->lock);
2897
2898     return S_OK;
2899 }
2900
2901 static HRESULT WINAPI ChannelAudioVolume_GetChannelVolume(
2902         IChannelAudioVolume *iface, UINT32 index, float *level)
2903 {
2904     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2905     AudioSession *session = This->session;
2906
2907     TRACE("(%p)->(%d, %p)\n", session, index, level);
2908
2909     if(!level)
2910         return NULL_PTR_ERR;
2911
2912     if(index >= session->channel_count)
2913         return E_INVALIDARG;
2914
2915     *level = session->channel_vols[index];
2916
2917     return S_OK;
2918 }
2919
2920 static HRESULT WINAPI ChannelAudioVolume_SetAllVolumes(
2921         IChannelAudioVolume *iface, UINT32 count, const float *levels,
2922         const GUID *context)
2923 {
2924     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2925     AudioSession *session = This->session;
2926     int i;
2927
2928     TRACE("(%p)->(%d, %p, %s)\n", session, count, levels,
2929             wine_dbgstr_guid(context));
2930
2931     if(!levels)
2932         return NULL_PTR_ERR;
2933
2934     if(count != session->channel_count)
2935         return E_INVALIDARG;
2936
2937     if(context)
2938         FIXME("Notifications not supported yet\n");
2939
2940     EnterCriticalSection(&session->lock);
2941
2942     for(i = 0; i < count; ++i)
2943         session->channel_vols[i] = levels[i];
2944
2945     TRACE("OSS doesn't support setting volume\n");
2946
2947     LeaveCriticalSection(&session->lock);
2948
2949     return S_OK;
2950 }
2951
2952 static HRESULT WINAPI ChannelAudioVolume_GetAllVolumes(
2953         IChannelAudioVolume *iface, UINT32 count, float *levels)
2954 {
2955     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2956     AudioSession *session = This->session;
2957     int i;
2958
2959     TRACE("(%p)->(%d, %p)\n", session, count, levels);
2960
2961     if(!levels)
2962         return NULL_PTR_ERR;
2963
2964     if(count != session->channel_count)
2965         return E_INVALIDARG;
2966
2967     for(i = 0; i < count; ++i)
2968         levels[i] = session->channel_vols[i];
2969
2970     return S_OK;
2971 }
2972
2973 static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl =
2974 {
2975     ChannelAudioVolume_QueryInterface,
2976     ChannelAudioVolume_AddRef,
2977     ChannelAudioVolume_Release,
2978     ChannelAudioVolume_GetChannelCount,
2979     ChannelAudioVolume_SetChannelVolume,
2980     ChannelAudioVolume_GetChannelVolume,
2981     ChannelAudioVolume_SetAllVolumes,
2982     ChannelAudioVolume_GetAllVolumes
2983 };
2984
2985 static HRESULT WINAPI AudioSessionManager_QueryInterface(IAudioSessionManager2 *iface,
2986         REFIID riid, void **ppv)
2987 {
2988     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2989
2990     if(!ppv)
2991         return E_POINTER;
2992     *ppv = NULL;
2993
2994     if(IsEqualIID(riid, &IID_IUnknown) ||
2995             IsEqualIID(riid, &IID_IAudioSessionManager) ||
2996             IsEqualIID(riid, &IID_IAudioSessionManager2))
2997         *ppv = iface;
2998     if(*ppv){
2999         IUnknown_AddRef((IUnknown*)*ppv);
3000         return S_OK;
3001     }
3002
3003     WARN("Unknown interface %s\n", debugstr_guid(riid));
3004     return E_NOINTERFACE;
3005 }
3006
3007 static ULONG WINAPI AudioSessionManager_AddRef(IAudioSessionManager2 *iface)
3008 {
3009     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3010     ULONG ref;
3011     ref = InterlockedIncrement(&This->ref);
3012     TRACE("(%p) Refcount now %u\n", This, ref);
3013     return ref;
3014 }
3015
3016 static ULONG WINAPI AudioSessionManager_Release(IAudioSessionManager2 *iface)
3017 {
3018     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3019     ULONG ref;
3020     ref = InterlockedDecrement(&This->ref);
3021     TRACE("(%p) Refcount now %u\n", This, ref);
3022     if(!ref)
3023         HeapFree(GetProcessHeap(), 0, This);
3024     return ref;
3025 }
3026
3027 static HRESULT WINAPI AudioSessionManager_GetAudioSessionControl(
3028         IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
3029         IAudioSessionControl **out)
3030 {
3031     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3032     AudioSession *session;
3033     AudioSessionWrapper *wrapper;
3034     HRESULT hr;
3035
3036     TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
3037             flags, out);
3038
3039     hr = get_audio_session(session_guid, This->device, 0, &session);
3040     if(FAILED(hr))
3041         return hr;
3042
3043     wrapper = AudioSessionWrapper_Create(NULL);
3044     if(!wrapper)
3045         return E_OUTOFMEMORY;
3046
3047     wrapper->session = session;
3048
3049     *out = (IAudioSessionControl*)&wrapper->IAudioSessionControl2_iface;
3050
3051     return S_OK;
3052 }
3053
3054 static HRESULT WINAPI AudioSessionManager_GetSimpleAudioVolume(
3055         IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
3056         ISimpleAudioVolume **out)
3057 {
3058     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3059     AudioSession *session;
3060     AudioSessionWrapper *wrapper;
3061     HRESULT hr;
3062
3063     TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
3064             flags, out);
3065
3066     hr = get_audio_session(session_guid, This->device, 0, &session);
3067     if(FAILED(hr))
3068         return hr;
3069
3070     wrapper = AudioSessionWrapper_Create(NULL);
3071     if(!wrapper)
3072         return E_OUTOFMEMORY;
3073
3074     wrapper->session = session;
3075
3076     *out = &wrapper->ISimpleAudioVolume_iface;
3077
3078     return S_OK;
3079 }
3080
3081 static HRESULT WINAPI AudioSessionManager_GetSessionEnumerator(
3082         IAudioSessionManager2 *iface, IAudioSessionEnumerator **out)
3083 {
3084     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3085     FIXME("(%p)->(%p) - stub\n", This, out);
3086     return E_NOTIMPL;
3087 }
3088
3089 static HRESULT WINAPI AudioSessionManager_RegisterSessionNotification(
3090         IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
3091 {
3092     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3093     FIXME("(%p)->(%p) - stub\n", This, notification);
3094     return E_NOTIMPL;
3095 }
3096
3097 static HRESULT WINAPI AudioSessionManager_UnregisterSessionNotification(
3098         IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
3099 {
3100     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3101     FIXME("(%p)->(%p) - stub\n", This, notification);
3102     return E_NOTIMPL;
3103 }
3104
3105 static HRESULT WINAPI AudioSessionManager_RegisterDuckNotification(
3106         IAudioSessionManager2 *iface, const WCHAR *session_id,
3107         IAudioVolumeDuckNotification *notification)
3108 {
3109     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3110     FIXME("(%p)->(%p) - stub\n", This, notification);
3111     return E_NOTIMPL;
3112 }
3113
3114 static HRESULT WINAPI AudioSessionManager_UnregisterDuckNotification(
3115         IAudioSessionManager2 *iface,
3116         IAudioVolumeDuckNotification *notification)
3117 {
3118     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3119     FIXME("(%p)->(%p) - stub\n", This, notification);
3120     return E_NOTIMPL;
3121 }
3122
3123 static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl =
3124 {
3125     AudioSessionManager_QueryInterface,
3126     AudioSessionManager_AddRef,
3127     AudioSessionManager_Release,
3128     AudioSessionManager_GetAudioSessionControl,
3129     AudioSessionManager_GetSimpleAudioVolume,
3130     AudioSessionManager_GetSessionEnumerator,
3131     AudioSessionManager_RegisterSessionNotification,
3132     AudioSessionManager_UnregisterSessionNotification,
3133     AudioSessionManager_RegisterDuckNotification,
3134     AudioSessionManager_UnregisterDuckNotification
3135 };
3136
3137 HRESULT WINAPI AUDDRV_GetAudioSessionManager(IMMDevice *device,
3138         IAudioSessionManager2 **out)
3139 {
3140     SessionMgr *This;
3141
3142     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SessionMgr));
3143     if(!This)
3144         return E_OUTOFMEMORY;
3145
3146     This->IAudioSessionManager2_iface.lpVtbl = &AudioSessionManager2_Vtbl;
3147     This->device = device;
3148     This->ref = 1;
3149
3150     *out = &This->IAudioSessionManager2_iface;
3151
3152     return S_OK;
3153 }