dlls/winealsa.drv/mmdevdrv.c

   1 /*
   2  * Copyright 2010 Maarten Lankhorst for CodeWeavers
   3  * Copyright 2011 Andrew Eikum for CodeWeavers
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #define NONAMELESSUNION
  21 #define COBJMACROS
  22 #include "config.h"
  23
  24 #include <stdarg.h>
  25 #include <math.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winnls.h"
  30 #include "winreg.h"
  31 #include "wine/debug.h"
  32 #include "wine/unicode.h"
  33 #include "wine/list.h"
  34
  35 #include "ole2.h"
  36 #include "mmdeviceapi.h"
  37 #include "devpkey.h"
  38 #include "dshow.h"
  39 #include "dsound.h"
  40
  41 #include "initguid.h"
  42 #include "endpointvolume.h"
  43 #include "audioclient.h"
  44 #include "audiopolicy.h"
  45
  46 #include <alsa/asoundlib.h>
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(alsa);
  49 WINE_DECLARE_DEBUG_CHANNEL(winediag);
  50
  51 #define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
  52
  53 static const REFERENCE_TIME DefaultPeriod = 100000;
  54 static const REFERENCE_TIME MinimumPeriod = 50000;
  55
  56 struct ACImpl;
  57 typedef struct ACImpl ACImpl;
  58
  59 typedef struct _AudioSession {
  60     GUID guid;
  61     struct list clients;
  62
  63     IMMDevice *device;
  64
  65     float master_vol;
  66     UINT32 channel_count;
  67     float *channel_vols;
  68     BOOL mute;
  69
  70     CRITICAL_SECTION lock;
  71
  72     struct list entry;
  73 } AudioSession;
  74
  75 typedef struct _AudioSessionWrapper {
  76     IAudioSessionControl2 IAudioSessionControl2_iface;
  77     IChannelAudioVolume IChannelAudioVolume_iface;
  78     ISimpleAudioVolume ISimpleAudioVolume_iface;
  79
  80     LONG ref;
  81
  82     ACImpl *client;
  83     AudioSession *session;
  84 } AudioSessionWrapper;
  85
  86 struct ACImpl {
  87     IAudioClient IAudioClient_iface;
  88     IAudioRenderClient IAudioRenderClient_iface;
  89     IAudioCaptureClient IAudioCaptureClient_iface;
  90     IAudioClock IAudioClock_iface;
  91     IAudioClock2 IAudioClock2_iface;
  92     IAudioStreamVolume IAudioStreamVolume_iface;
  93
  94     LONG ref;
  95
  96     snd_pcm_t *pcm_handle;
  97     snd_pcm_uframes_t alsa_bufsize_frames;
  98     snd_pcm_hw_params_t *hw_params; /* does not hold state between calls */
  99     snd_pcm_format_t alsa_format;
 100
 101     IMMDevice *parent;
 102
 103     EDataFlow dataflow;
 104     WAVEFORMATEX *fmt;
 105     DWORD flags;
 106     AUDCLNT_SHAREMODE share;
 107     HANDLE event;
 108     float *vols;
 109
 110     BOOL initted, started;
 111     REFERENCE_TIME mmdev_period_rt;
 112     UINT64 written_frames;
 113     UINT32 bufsize_frames, held_frames, tmp_buffer_frames;
 114     UINT32 lcl_offs_frames; /* offs into local_buffer where valid data starts */
 115
 116     HANDLE timer;
 117     BYTE *local_buffer, *tmp_buffer;
 118     int buf_state;
 119
 120     CRITICAL_SECTION lock;
 121
 122     AudioSession *session;
 123     AudioSessionWrapper *session_wrapper;
 124
 125     struct list entry;
 126 };
 127
 128 enum BufferStates {
 129     NOT_LOCKED = 0,
 130     LOCKED_NORMAL, /* public buffer piece is from local_buffer */
 131     LOCKED_WRAPPED /* public buffer piece is wrapped around, in tmp_buffer */
 132 };
 133
 134 typedef struct _SessionMgr {
 135     IAudioSessionManager2 IAudioSessionManager2_iface;
 136
 137     LONG ref;
 138
 139     IMMDevice *device;
 140 } SessionMgr;
 141
 142 static HANDLE g_timer_q;
 143
 144 static CRITICAL_SECTION g_sessions_lock;
 145 static CRITICAL_SECTION_DEBUG g_sessions_lock_debug =
 146 {
 147     0, 0, &g_sessions_lock,
 148     { &g_sessions_lock_debug.ProcessLocksList, &g_sessions_lock_debug.ProcessLocksList },
 149       0, 0, { (DWORD_PTR)(__FILE__ ": g_sessions_lock") }
 150 };
 151 static CRITICAL_SECTION g_sessions_lock = { &g_sessions_lock_debug, -1, 0, 0, 0, 0 };
 152 static struct list g_sessions = LIST_INIT(g_sessions);
 153
 154 static const WCHAR defaultW[] = {'d','e','f','a','u','l','t',0};
 155 static const char defname[] = "default";
 156
 157 static const IAudioClientVtbl AudioClient_Vtbl;
 158 static const IAudioRenderClientVtbl AudioRenderClient_Vtbl;
 159 static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl;
 160 static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl;
 161 static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl;
 162 static const IAudioClockVtbl AudioClock_Vtbl;
 163 static const IAudioClock2Vtbl AudioClock2_Vtbl;
 164 static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl;
 165 static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl;
 166 static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl;
 167
 168 static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client);
 169
 170 static inline ACImpl *impl_from_IAudioClient(IAudioClient *iface)
 171 {
 172     return CONTAINING_RECORD(iface, ACImpl, IAudioClient_iface);
 173 }
 174
 175 static inline ACImpl *impl_from_IAudioRenderClient(IAudioRenderClient *iface)
 176 {
 177     return CONTAINING_RECORD(iface, ACImpl, IAudioRenderClient_iface);
 178 }
 179
 180 static inline ACImpl *impl_from_IAudioCaptureClient(IAudioCaptureClient *iface)
 181 {
 182     return CONTAINING_RECORD(iface, ACImpl, IAudioCaptureClient_iface);
 183 }
 184
 185 static inline AudioSessionWrapper *impl_from_IAudioSessionControl2(IAudioSessionControl2 *iface)
 186 {
 187     return CONTAINING_RECORD(iface, AudioSessionWrapper, IAudioSessionControl2_iface);
 188 }
 189
 190 static inline AudioSessionWrapper *impl_from_ISimpleAudioVolume(ISimpleAudioVolume *iface)
 191 {
 192     return CONTAINING_RECORD(iface, AudioSessionWrapper, ISimpleAudioVolume_iface);
 193 }
 194
 195 static inline AudioSessionWrapper *impl_from_IChannelAudioVolume(IChannelAudioVolume *iface)
 196 {
 197     return CONTAINING_RECORD(iface, AudioSessionWrapper, IChannelAudioVolume_iface);
 198 }
 199
 200 static inline ACImpl *impl_from_IAudioClock(IAudioClock *iface)
 201 {
 202     return CONTAINING_RECORD(iface, ACImpl, IAudioClock_iface);
 203 }
 204
 205 static inline ACImpl *impl_from_IAudioClock2(IAudioClock2 *iface)
 206 {
 207     return CONTAINING_RECORD(iface, ACImpl, IAudioClock2_iface);
 208 }
 209
 210 static inline ACImpl *impl_from_IAudioStreamVolume(IAudioStreamVolume *iface)
 211 {
 212     return CONTAINING_RECORD(iface, ACImpl, IAudioStreamVolume_iface);
 213 }
 214
 215 static inline SessionMgr *impl_from_IAudioSessionManager2(IAudioSessionManager2 *iface)
 216 {
 217     return CONTAINING_RECORD(iface, SessionMgr, IAudioSessionManager2_iface);
 218 }
 219
 220 BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
 221 {
 222     if(reason == DLL_PROCESS_ATTACH){
 223         g_timer_q = CreateTimerQueue();
 224         if(!g_timer_q)
 225             return FALSE;
 226     }
 227
 228     return TRUE;
 229 }
 230
 231 /* From <dlls/mmdevapi/mmdevapi.h> */
 232 enum DriverPriority {
 233     Priority_Unavailable = 0,
 234     Priority_Low,
 235     Priority_Neutral,
 236     Priority_Preferred
 237 };
 238
 239 int WINAPI AUDDRV_GetPriority(void)
 240 {
 241     return Priority_Neutral;
 242 }
 243
 244 static BOOL alsa_try_open(const char *devnode, snd_pcm_stream_t stream)
 245 {
 246     snd_pcm_t *handle;
 247     int err;
 248
 249     if((err = snd_pcm_open(&handle, devnode, stream, SND_PCM_NONBLOCK)) < 0){
 250         WARN("The device \"%s\" failed to open: %d (%s).\n",
 251                 devnode, err, snd_strerror(err));
 252         return FALSE;
 253     }
 254
 255     snd_pcm_close(handle);
 256     return TRUE;
 257 }
 258
 259 static HRESULT alsa_get_card_devices(snd_pcm_stream_t stream, WCHAR **ids, char **keys,
 260         UINT *num, snd_ctl_t *ctl, int card, const WCHAR *cardnameW)
 261 {
 262     static const WCHAR dashW[] = {' ','-',' ',0};
 263     int err, device;
 264     snd_pcm_info_t *info;
 265
 266     info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_info_sizeof());
 267     if(!info)
 268         return E_OUTOFMEMORY;
 269
 270     snd_pcm_info_set_subdevice(info, 0);
 271     snd_pcm_info_set_stream(info, stream);
 272
 273     device = -1;
 274     for(err = snd_ctl_pcm_next_device(ctl, &device); device != -1 && err >= 0;
 275             err = snd_ctl_pcm_next_device(ctl, &device)){
 276         const char *devname;
 277         char devnode[32];
 278
 279         snd_pcm_info_set_device(info, device);
 280
 281         if((err = snd_ctl_pcm_info(ctl, info)) < 0){
 282             if(err == -ENOENT)
 283                 /* This device doesn't have the right stream direction */
 284                 continue;
 285
 286             WARN("Failed to get info for card %d, device %d: %d (%s)\n",
 287                     card, device, err, snd_strerror(err));
 288             continue;
 289         }
 290
 291         sprintf(devnode, "plughw:%d,%d", card, device);
 292         if(!alsa_try_open(devnode, stream))
 293             continue;
 294
 295         if(ids && keys){
 296             DWORD len, cardlen;
 297
 298             devname = snd_pcm_info_get_name(info);
 299             if(!devname){
 300                 WARN("Unable to get device name for card %d, device %d\n", card,
 301                         device);
 302                 continue;
 303             }
 304
 305             cardlen = lstrlenW(cardnameW);
 306             len = MultiByteToWideChar(CP_UNIXCP, 0, devname, -1, NULL, 0);
 307             len += lstrlenW(dashW);
 308             len += cardlen;
 309             ids[*num] = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 310             if(!ids[*num]){
 311                 HeapFree(GetProcessHeap(), 0, info);
 312                 return E_OUTOFMEMORY;
 313             }
 314             memcpy(ids[*num], cardnameW, cardlen * sizeof(WCHAR));
 315             memcpy(ids[*num] + cardlen, dashW, lstrlenW(dashW) * sizeof(WCHAR));
 316             cardlen += lstrlenW(dashW);
 317             MultiByteToWideChar(CP_UNIXCP, 0, devname, -1, ids[*num] + cardlen,
 318                     len - cardlen);
 319
 320             keys[*num] = HeapAlloc(GetProcessHeap(), 0, 32);
 321             if(!keys[*num]){
 322                 HeapFree(GetProcessHeap(), 0, info);
 323                 HeapFree(GetProcessHeap(), 0, ids[*num]);
 324                 return E_OUTOFMEMORY;
 325             }
 326             memcpy(keys[*num], devnode, sizeof(devnode));
 327         }
 328
 329         ++(*num);
 330     }
 331
 332     HeapFree(GetProcessHeap(), 0, info);
 333
 334     if(err != 0)
 335         WARN("Got a failure during device enumeration on card %d: %d (%s)\n",
 336                 card, err, snd_strerror(err));
 337
 338     return S_OK;
 339 }
 340
 341 static HRESULT alsa_enum_devices(EDataFlow flow, WCHAR **ids, char **keys,
 342         UINT *num)
 343 {
 344     snd_pcm_stream_t stream = (flow == eRender ? SND_PCM_STREAM_PLAYBACK :
 345         SND_PCM_STREAM_CAPTURE);
 346     int err, card;
 347
 348     card = -1;
 349     *num = 0;
 350
 351     if(alsa_try_open(defname, stream)){
 352         if(ids && keys){
 353             *ids = HeapAlloc(GetProcessHeap(), 0, sizeof(defaultW));
 354             memcpy(*ids, defaultW, sizeof(defaultW));
 355             *keys = HeapAlloc(GetProcessHeap(), 0, sizeof(defname));
 356             memcpy(*keys, defname, sizeof(defname));
 357         }
 358         ++*num;
 359     }
 360
 361     for(err = snd_card_next(&card); card != -1 && err >= 0;
 362             err = snd_card_next(&card)){
 363         char cardpath[64];
 364         const char *cardname;
 365         WCHAR *cardnameW;
 366         snd_ctl_t *ctl;
 367         DWORD len;
 368
 369         sprintf(cardpath, "hw:%u", card);
 370
 371         if((err = snd_ctl_open(&ctl, cardpath, 0)) < 0){
 372             WARN("Unable to open ctl for ALSA device %s: %d (%s)\n", cardpath,
 373                     err, snd_strerror(err));
 374             continue;
 375         }
 376
 377         if((err = snd_card_get_name(card, (char **)&cardname)) < 0){
 378             WARN("Unable to get card name for ALSA device %s: %d (%s)\n",
 379                     cardpath, err, snd_strerror(err));
 380             /* FIXME: Should be localized */
 381             cardname = "Unknown soundcard";
 382         }
 383
 384         len = MultiByteToWideChar(CP_UNIXCP, 0, cardname, -1, NULL, 0);
 385         cardnameW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 386         if(!cardnameW){
 387             snd_ctl_close(ctl);
 388             return E_OUTOFMEMORY;
 389         }
 390         MultiByteToWideChar(CP_UNIXCP, 0, cardname, -1, cardnameW, len);
 391
 392         alsa_get_card_devices(stream, ids, keys, num, ctl, card, cardnameW);
 393
 394         HeapFree(GetProcessHeap(), 0, cardnameW);
 395
 396         snd_ctl_close(ctl);
 397     }
 398
 399     if(err != 0)
 400         WARN("Got a failure during card enumeration: %d (%s)\n",
 401                 err, snd_strerror(err));
 402
 403     return S_OK;
 404 }
 405
 406 HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids, char ***keys,
 407         UINT *num, UINT *def_index)
 408 {
 409     HRESULT hr;
 410
 411     TRACE("%d %p %p %p %p\n", flow, ids, keys, num, def_index);
 412
 413     hr = alsa_enum_devices(flow, NULL, NULL, num);
 414     if(FAILED(hr))
 415         return hr;
 416
 417     if(*num == 0)
 418     {
 419         *ids = NULL;
 420         *keys = NULL;
 421         return S_OK;
 422     }
 423
 424     *ids = HeapAlloc(GetProcessHeap(), 0, *num * sizeof(WCHAR *));
 425     *keys = HeapAlloc(GetProcessHeap(), 0, *num * sizeof(char *));
 426     if(!*ids || !*keys){
 427         HeapFree(GetProcessHeap(), 0, *ids);
 428         HeapFree(GetProcessHeap(), 0, *keys);
 429         return E_OUTOFMEMORY;
 430     }
 431
 432     *def_index = 0;
 433
 434     hr = alsa_enum_devices(flow, *ids, *keys, num);
 435     if(FAILED(hr)){
 436         int i;
 437         for(i = 0; i < *num; ++i){
 438             HeapFree(GetProcessHeap(), 0, (*ids)[i]);
 439             HeapFree(GetProcessHeap(), 0, (*keys)[i]);
 440         }
 441         HeapFree(GetProcessHeap(), 0, *ids);
 442         HeapFree(GetProcessHeap(), 0, *keys);
 443         return E_OUTOFMEMORY;
 444     }
 445
 446     return S_OK;
 447 }
 448
 449 /* Using the pulse PCM device from alsa-plugins 1.0.24 triggers a bug
 450  * which causes audio to cease playing after a few minutes of playback.
 451  * Setting handle_underrun=1 on pulse-backed ALSA devices seems to work
 452  * around this issue. */
 453 static snd_config_t *make_handle_underrun_config(const char *name)
 454 {
 455     snd_config_t *lconf, *dev_node, *hu_node, *type_node;
 456     char dev_node_name[64];
 457     const char *type_str;
 458     int err;
 459
 460     snd_config_update();
 461
 462     if((err = snd_config_copy(&lconf, snd_config)) < 0){
 463         WARN("snd_config_copy failed: %d (%s)\n", err, snd_strerror(err));
 464         return NULL;
 465     }
 466
 467     sprintf(dev_node_name, "pcm.%s", name);
 468     err = snd_config_search(lconf, dev_node_name, &dev_node);
 469     if(err == -ENOENT){
 470         snd_config_delete(lconf);
 471         return NULL;
 472     }
 473     if(err < 0){
 474         snd_config_delete(lconf);
 475         WARN("snd_config_search failed: %d (%s)\n", err, snd_strerror(err));
 476         return NULL;
 477     }
 478
 479     /* ALSA is extremely fragile. If it runs into a config setting it doesn't
 480      * recognize, it tends to fail or assert. So we only want to inject
 481      * handle_underrun=1 on devices that we know will recognize it. */
 482     err = snd_config_search(dev_node, "type", &type_node);
 483     if(err == -ENOENT){
 484         snd_config_delete(lconf);
 485         return NULL;
 486     }
 487     if(err < 0){
 488         snd_config_delete(lconf);
 489         WARN("snd_config_search failed: %d (%s)\n", err, snd_strerror(err));
 490         return NULL;
 491     }
 492
 493     if((err = snd_config_get_string(type_node, &type_str)) < 0){
 494         snd_config_delete(lconf);
 495         return NULL;
 496     }
 497
 498     if(strcmp(type_str, "pulse") != 0){
 499         snd_config_delete(lconf);
 500         return NULL;
 501     }
 502
 503     err = snd_config_search(dev_node, "handle_underrun", &hu_node);
 504     if(err >= 0){
 505         /* user already has an explicit handle_underrun setting, so don't
 506          * use a local config */
 507         snd_config_delete(lconf);
 508         return NULL;
 509     }
 510     if(err != -ENOENT){
 511         snd_config_delete(lconf);
 512         WARN("snd_config_search failed: %d (%s)\n", err, snd_strerror(err));
 513         return NULL;
 514     }
 515
 516     if((err = snd_config_imake_integer(&hu_node, "handle_underrun", 1)) < 0){
 517         snd_config_delete(lconf);
 518         WARN("snd_config_imake_integer failed: %d (%s)\n", err,
 519                 snd_strerror(err));
 520         return NULL;
 521     }
 522
 523     if((err = snd_config_add(dev_node, hu_node)) < 0){
 524         snd_config_delete(lconf);
 525         WARN("snd_config_add failed: %d (%s)\n", err, snd_strerror(err));
 526         return NULL;
 527     }
 528
 529     return lconf;
 530 }
 531
 532 HRESULT WINAPI AUDDRV_GetAudioEndpoint(const char *key, IMMDevice *dev,
 533         EDataFlow dataflow, IAudioClient **out)
 534 {
 535     ACImpl *This;
 536     int err;
 537     snd_pcm_stream_t stream;
 538     snd_config_t *lconf;
 539     static int handle_underrun = 1;
 540
 541     TRACE("\"%s\" %p %d %p\n", key, dev, dataflow, out);
 542
 543     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ACImpl));
 544     if(!This)
 545         return E_OUTOFMEMORY;
 546
 547     This->IAudioClient_iface.lpVtbl = &AudioClient_Vtbl;
 548     This->IAudioRenderClient_iface.lpVtbl = &AudioRenderClient_Vtbl;
 549     This->IAudioCaptureClient_iface.lpVtbl = &AudioCaptureClient_Vtbl;
 550     This->IAudioClock_iface.lpVtbl = &AudioClock_Vtbl;
 551     This->IAudioClock2_iface.lpVtbl = &AudioClock2_Vtbl;
 552     This->IAudioStreamVolume_iface.lpVtbl = &AudioStreamVolume_Vtbl;
 553
 554     if(dataflow == eRender)
 555         stream = SND_PCM_STREAM_PLAYBACK;
 556     else if(dataflow == eCapture)
 557         stream = SND_PCM_STREAM_CAPTURE;
 558     else{
 559         HeapFree(GetProcessHeap(), 0, This);
 560         return E_UNEXPECTED;
 561     }
 562
 563     This->dataflow = dataflow;
 564     if(handle_underrun && ((lconf = make_handle_underrun_config(key)))){
 565         err = snd_pcm_open_lconf(&This->pcm_handle, key, stream, SND_PCM_NONBLOCK, lconf);
 566         TRACE("Opening PCM device \"%s\" with handle_underrun: %d\n", key, err);
 567         snd_config_delete(lconf);
 568         /* Pulse <= 2010 returns EINVAL, it does not know handle_underrun. */
 569         if(err == -EINVAL){
 570             ERR_(winediag)("PulseAudio \"%s\" %d without handle_underrun. Audio may hang."
 571                            " Please upgrade to alsa_plugins >= 1.0.24\n", key, err);
 572             handle_underrun = 0;
 573         }
 574     }else
 575         err = -EINVAL;
 576     if(err == -EINVAL){
 577         err = snd_pcm_open(&This->pcm_handle, key, stream, SND_PCM_NONBLOCK);
 578     }
 579     if(err < 0){
 580         HeapFree(GetProcessHeap(), 0, This);
 581         WARN("Unable to open PCM \"%s\": %d (%s)\n", key, err, snd_strerror(err));
 582         return E_FAIL;
 583     }
 584
 585     This->hw_params = HeapAlloc(GetProcessHeap(), 0,
 586             snd_pcm_hw_params_sizeof());
 587     if(!This->hw_params){
 588         snd_pcm_close(This->pcm_handle);
 589         HeapFree(GetProcessHeap(), 0, This);
 590         return E_OUTOFMEMORY;
 591     }
 592
 593     InitializeCriticalSection(&This->lock);
 594     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ACImpl.lock");
 595
 596     This->parent = dev;
 597     IMMDevice_AddRef(This->parent);
 598
 599     *out = &This->IAudioClient_iface;
 600     IAudioClient_AddRef(&This->IAudioClient_iface);
 601
 602     return S_OK;
 603 }
 604
 605 static HRESULT WINAPI AudioClient_QueryInterface(IAudioClient *iface,
 606         REFIID riid, void **ppv)
 607 {
 608     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
 609
 610     if(!ppv)
 611         return E_POINTER;
 612     *ppv = NULL;
 613     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClient))
 614         *ppv = iface;
 615     if(*ppv){
 616         IUnknown_AddRef((IUnknown*)*ppv);
 617         return S_OK;
 618     }
 619     WARN("Unknown interface %s\n", debugstr_guid(riid));
 620     return E_NOINTERFACE;
 621 }
 622
 623 static ULONG WINAPI AudioClient_AddRef(IAudioClient *iface)
 624 {
 625     ACImpl *This = impl_from_IAudioClient(iface);
 626     ULONG ref;
 627     ref = InterlockedIncrement(&This->ref);
 628     TRACE("(%p) Refcount now %u\n", This, ref);
 629     return ref;
 630 }
 631
 632 static ULONG WINAPI AudioClient_Release(IAudioClient *iface)
 633 {
 634     ACImpl *This = impl_from_IAudioClient(iface);
 635     ULONG ref;
 636     ref = InterlockedDecrement(&This->ref);
 637     TRACE("(%p) Refcount now %u\n", This, ref);
 638     if(!ref){
 639         IAudioClient_Stop(iface);
 640         IMMDevice_Release(This->parent);
 641         This->lock.DebugInfo->Spare[0] = 0;
 642         DeleteCriticalSection(&This->lock);
 643         snd_pcm_drop(This->pcm_handle);
 644         snd_pcm_close(This->pcm_handle);
 645         if(This->initted){
 646             EnterCriticalSection(&g_sessions_lock);
 647             list_remove(&This->entry);
 648             LeaveCriticalSection(&g_sessions_lock);
 649         }
 650         HeapFree(GetProcessHeap(), 0, This->vols);
 651         HeapFree(GetProcessHeap(), 0, This->local_buffer);
 652         HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
 653         HeapFree(GetProcessHeap(), 0, This->hw_params);
 654         CoTaskMemFree(This->fmt);
 655         HeapFree(GetProcessHeap(), 0, This);
 656     }
 657     return ref;
 658 }
 659
 660 static void dump_fmt(const WAVEFORMATEX *fmt)
 661 {
 662     TRACE("wFormatTag: 0x%x (", fmt->wFormatTag);
 663     switch(fmt->wFormatTag){
 664     case WAVE_FORMAT_PCM:
 665         TRACE("WAVE_FORMAT_PCM");
 666         break;
 667     case WAVE_FORMAT_IEEE_FLOAT:
 668         TRACE("WAVE_FORMAT_IEEE_FLOAT");
 669         break;
 670     case WAVE_FORMAT_EXTENSIBLE:
 671         TRACE("WAVE_FORMAT_EXTENSIBLE");
 672         break;
 673     default:
 674         TRACE("Unknown");
 675         break;
 676     }
 677     TRACE(")\n");
 678
 679     TRACE("nChannels: %u\n", fmt->nChannels);
 680     TRACE("nSamplesPerSec: %u\n", fmt->nSamplesPerSec);
 681     TRACE("nAvgBytesPerSec: %u\n", fmt->nAvgBytesPerSec);
 682     TRACE("nBlockAlign: %u\n", fmt->nBlockAlign);
 683     TRACE("wBitsPerSample: %u\n", fmt->wBitsPerSample);
 684     TRACE("cbSize: %u\n", fmt->cbSize);
 685
 686     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
 687         WAVEFORMATEXTENSIBLE *fmtex = (void*)fmt;
 688         TRACE("dwChannelMask: %08x\n", fmtex->dwChannelMask);
 689         TRACE("Samples: %04x\n", fmtex->Samples.wReserved);
 690         TRACE("SubFormat: %s\n", wine_dbgstr_guid(&fmtex->SubFormat));
 691     }
 692 }
 693
 694 static WAVEFORMATEX *clone_format(const WAVEFORMATEX *fmt)
 695 {
 696     WAVEFORMATEX *ret;
 697     size_t size;
 698
 699     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
 700         size = sizeof(WAVEFORMATEXTENSIBLE);
 701     else
 702         size = sizeof(WAVEFORMATEX);
 703
 704     ret = CoTaskMemAlloc(size);
 705     if(!ret)
 706         return NULL;
 707
 708     memcpy(ret, fmt, size);
 709
 710     ret->cbSize = size - sizeof(WAVEFORMATEX);
 711
 712     return ret;
 713 }
 714
 715 static void session_init_vols(AudioSession *session, UINT channels)
 716 {
 717     if(session->channel_count < channels){
 718         UINT i;
 719
 720         if(session->channel_vols)
 721             session->channel_vols = HeapReAlloc(GetProcessHeap(), 0,
 722                     session->channel_vols, sizeof(float) * channels);
 723         else
 724             session->channel_vols = HeapAlloc(GetProcessHeap(), 0,
 725                     sizeof(float) * channels);
 726         if(!session->channel_vols)
 727             return;
 728
 729         for(i = session->channel_count; i < channels; ++i)
 730             session->channel_vols[i] = 1.f;
 731
 732         session->channel_count = channels;
 733     }
 734 }
 735
 736 static AudioSession *create_session(const GUID *guid, IMMDevice *device,
 737         UINT num_channels)
 738 {
 739     AudioSession *ret;
 740
 741     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(AudioSession));
 742     if(!ret)
 743         return NULL;
 744
 745     memcpy(&ret->guid, guid, sizeof(GUID));
 746
 747     ret->device = device;
 748
 749     list_init(&ret->clients);
 750
 751     list_add_head(&g_sessions, &ret->entry);
 752
 753     InitializeCriticalSection(&ret->lock);
 754     ret->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": AudioSession.lock");
 755
 756     session_init_vols(ret, num_channels);
 757
 758     ret->master_vol = 1.f;
 759
 760     return ret;
 761 }
 762
 763 /* if channels == 0, then this will return or create a session with
 764  * matching dataflow and GUID. otherwise, channels must also match */
 765 static HRESULT get_audio_session(const GUID *sessionguid,
 766         IMMDevice *device, UINT channels, AudioSession **out)
 767 {
 768     AudioSession *session;
 769
 770     if(!sessionguid || IsEqualGUID(sessionguid, &GUID_NULL)){
 771         *out = create_session(&GUID_NULL, device, channels);
 772         if(!*out)
 773             return E_OUTOFMEMORY;
 774
 775         return S_OK;
 776     }
 777
 778     *out = NULL;
 779     LIST_FOR_EACH_ENTRY(session, &g_sessions, AudioSession, entry){
 780         if(session->device == device &&
 781                 IsEqualGUID(sessionguid, &session->guid)){
 782             session_init_vols(session, channels);
 783             *out = session;
 784             break;
 785         }
 786     }
 787
 788     if(!*out){
 789         *out = create_session(sessionguid, device, channels);
 790         if(!*out)
 791             return E_OUTOFMEMORY;
 792     }
 793
 794     return S_OK;
 795 }
 796
 797 static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
 798         AUDCLNT_SHAREMODE mode, DWORD flags, REFERENCE_TIME duration,
 799         REFERENCE_TIME period, const WAVEFORMATEX *fmt,
 800         const GUID *sessionguid)
 801 {
 802     ACImpl *This = impl_from_IAudioClient(iface);
 803     snd_pcm_sw_params_t *sw_params = NULL;
 804     snd_pcm_format_t format;
 805     snd_pcm_uframes_t alsa_period_frames;
 806     const WAVEFORMATEXTENSIBLE *fmtex = (const WAVEFORMATEXTENSIBLE *)fmt;
 807     unsigned int rate, mmdev_period_frames, alsa_period_us;
 808     int err, i;
 809     HRESULT hr = S_OK;
 810
 811     TRACE("(%p)->(%x, %x, %s, %s, %p, %s)\n", This, mode, flags,
 812           wine_dbgstr_longlong(duration), wine_dbgstr_longlong(period), fmt, debugstr_guid(sessionguid));
 813
 814     if(!fmt)
 815         return E_POINTER;
 816
 817     if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
 818         return AUDCLNT_E_NOT_INITIALIZED;
 819
 820     if(flags & ~(AUDCLNT_STREAMFLAGS_CROSSPROCESS |
 821                 AUDCLNT_STREAMFLAGS_LOOPBACK |
 822                 AUDCLNT_STREAMFLAGS_EVENTCALLBACK |
 823                 AUDCLNT_STREAMFLAGS_NOPERSIST |
 824                 AUDCLNT_STREAMFLAGS_RATEADJUST |
 825                 AUDCLNT_SESSIONFLAGS_EXPIREWHENUNOWNED |
 826                 AUDCLNT_SESSIONFLAGS_DISPLAY_HIDE |
 827                 AUDCLNT_SESSIONFLAGS_DISPLAY_HIDEWHENEXPIRED)){
 828         TRACE("Unknown flags: %08x\n", flags);
 829         return E_INVALIDARG;
 830     }
 831
 832     if(!duration)
 833         duration = 300000; /* 0.03s */
 834
 835     EnterCriticalSection(&This->lock);
 836
 837     if(This->initted){
 838         LeaveCriticalSection(&This->lock);
 839         return AUDCLNT_E_ALREADY_INITIALIZED;
 840     }
 841
 842     dump_fmt(fmt);
 843
 844     if((err = snd_pcm_hw_params_any(This->pcm_handle, This->hw_params)) < 0){
 845         WARN("Unable to get hw_params: %d (%s)\n", err, snd_strerror(err));
 846         hr = E_FAIL;
 847         goto exit;
 848     }
 849
 850     if((err = snd_pcm_hw_params_set_access(This->pcm_handle, This->hw_params,
 851                 SND_PCM_ACCESS_RW_INTERLEAVED)) < 0){
 852         WARN("Unable to set access: %d (%s)\n", err, snd_strerror(err));
 853         hr = E_FAIL;
 854         goto exit;
 855     }
 856
 857     if(fmt->wFormatTag == WAVE_FORMAT_PCM ||
 858             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 859              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))){
 860         if(fmt->wBitsPerSample == 8)
 861             format = SND_PCM_FORMAT_U8;
 862         else if(fmt->wBitsPerSample == 16)
 863             format = SND_PCM_FORMAT_S16_LE;
 864         else if(fmt->wBitsPerSample == 24)
 865             format = SND_PCM_FORMAT_S24_3LE;
 866         else if(fmt->wBitsPerSample == 32)
 867             format = SND_PCM_FORMAT_S32_LE;
 868         else{
 869             WARN("Unsupported bit depth: %u\n", fmt->wBitsPerSample);
 870             hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
 871             goto exit;
 872         }
 873     }else if(fmt->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
 874             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
 875              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))){
 876         if(fmt->wBitsPerSample == 32)
 877             format = SND_PCM_FORMAT_FLOAT_LE;
 878         else if(fmt->wBitsPerSample == 64)
 879             format = SND_PCM_FORMAT_FLOAT64_LE;
 880         else{
 881             WARN("Unsupported float size: %u\n", fmt->wBitsPerSample);
 882             hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
 883             goto exit;
 884         }
 885     }else{
 886         WARN("Unknown wave format: %04x\n", fmt->wFormatTag);
 887         hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
 888         goto exit;
 889     }
 890
 891     if((err = snd_pcm_hw_params_set_format(This->pcm_handle, This->hw_params,
 892                 format)) < 0){
 893         WARN("Unable to set ALSA format to %u: %d (%s)\n", format, err,
 894                 snd_strerror(err));
 895         hr = E_FAIL;
 896         goto exit;
 897     }
 898
 899     This->alsa_format = format;
 900
 901     rate = fmt->nSamplesPerSec;
 902     if((err = snd_pcm_hw_params_set_rate_near(This->pcm_handle, This->hw_params,
 903                 &rate, NULL)) < 0){
 904         WARN("Unable to set rate to %u: %d (%s)\n", rate, err,
 905                 snd_strerror(err));
 906         hr = E_FAIL;
 907         goto exit;
 908     }
 909
 910     if((err = snd_pcm_hw_params_set_channels(This->pcm_handle, This->hw_params,
 911                 fmt->nChannels)) < 0){
 912         WARN("Unable to set channels to %u: %d (%s)\n", fmt->nChannels, err,
 913                 snd_strerror(err));
 914         hr = E_FAIL;
 915         goto exit;
 916     }
 917
 918     alsa_period_us = duration / 100; /* duration / 10 converted to us */
 919     if((err = snd_pcm_hw_params_set_period_time_near(This->pcm_handle,
 920                 This->hw_params, &alsa_period_us, NULL)) < 0){
 921         WARN("Unable to set period time near %u: %d (%s)\n", alsa_period_us,
 922                 err, snd_strerror(err));
 923         hr = E_FAIL;
 924         goto exit;
 925     }
 926
 927     if((err = snd_pcm_hw_params(This->pcm_handle, This->hw_params)) < 0){
 928         WARN("Unable to set hw params: %d (%s)\n", err, snd_strerror(err));
 929         hr = E_FAIL;
 930         goto exit;
 931     }
 932
 933     if((err = snd_pcm_hw_params_current(This->pcm_handle, This->hw_params)) < 0){
 934         WARN("Unable to get current hw params: %d (%s)\n", err, snd_strerror(err));
 935         hr = E_FAIL;
 936         goto exit;
 937     }
 938
 939     if((err = snd_pcm_hw_params_get_period_size(This->hw_params,
 940                     &alsa_period_frames, NULL)) < 0){
 941         WARN("Unable to get period size: %d (%s)\n", err, snd_strerror(err));
 942         hr = E_FAIL;
 943         goto exit;
 944     }
 945     TRACE("alsa_period_frames: %lu\n", alsa_period_frames);
 946
 947     if((err = snd_pcm_hw_params_get_buffer_size(This->hw_params,
 948                     &This->alsa_bufsize_frames)) < 0){
 949         WARN("Unable to get buffer size: %d (%s)\n", err, snd_strerror(err));
 950         hr = E_FAIL;
 951         goto exit;
 952     }
 953
 954     sw_params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof());
 955     if(!sw_params){
 956         hr = E_OUTOFMEMORY;
 957         goto exit;
 958     }
 959
 960     if((err = snd_pcm_sw_params_current(This->pcm_handle, sw_params)) < 0){
 961         WARN("Unable to get sw_params: %d (%s)\n", err, snd_strerror(err));
 962         hr = E_FAIL;
 963         goto exit;
 964     }
 965
 966     if((err = snd_pcm_sw_params_set_start_threshold(This->pcm_handle,
 967                     sw_params, 1)) < 0){
 968         WARN("Unable set start threshold to 0: %d (%s)\n", err, snd_strerror(err));
 969         hr = E_FAIL;
 970         goto exit;
 971     }
 972
 973     if((err = snd_pcm_sw_params_set_stop_threshold(This->pcm_handle,
 974                     sw_params, This->alsa_bufsize_frames)) < 0){
 975         WARN("Unable set stop threshold to %lu: %d (%s)\n",
 976                 This->alsa_bufsize_frames, err, snd_strerror(err));
 977         hr = E_FAIL;
 978         goto exit;
 979     }
 980
 981     if((err = snd_pcm_sw_params(This->pcm_handle, sw_params)) < 0){
 982         WARN("Unable set sw params: %d (%s)\n", err, snd_strerror(err));
 983         hr = E_FAIL;
 984         goto exit;
 985     }
 986
 987     if((err = snd_pcm_prepare(This->pcm_handle)) < 0){
 988         WARN("Unable to prepare device: %d (%s)\n", err, snd_strerror(err));
 989         hr = E_FAIL;
 990         goto exit;
 991     }
 992
 993     if(period)
 994         This->mmdev_period_rt = period;
 995     else
 996         This->mmdev_period_rt = DefaultPeriod;
 997
 998     /* Check if the ALSA buffer is so small that it will run out before
 999      * the next MMDevAPI period tick occurs. Allow a little wiggle room
1000      * with 120% of the period time. */
1001     mmdev_period_frames = fmt->nSamplesPerSec * (This->mmdev_period_rt / 10000000.);
1002     if(This->alsa_bufsize_frames < 1.2 * mmdev_period_frames)
1003         FIXME("ALSA buffer time is smaller than our period time. Expect underruns. (%lu < %u)\n",
1004                 This->alsa_bufsize_frames, mmdev_period_frames);
1005
1006     This->bufsize_frames = ceil((duration / 10000000.) * fmt->nSamplesPerSec);
1007     This->local_buffer = HeapAlloc(GetProcessHeap(), 0,
1008             This->bufsize_frames * fmt->nBlockAlign);
1009     if(!This->local_buffer){
1010         hr = E_OUTOFMEMORY;
1011         goto exit;
1012     }
1013     if (fmt->wBitsPerSample == 8)
1014         memset(This->local_buffer, 128, This->bufsize_frames * fmt->nBlockAlign);
1015     else
1016         memset(This->local_buffer, 0, This->bufsize_frames * fmt->nBlockAlign);
1017
1018     This->fmt = clone_format(fmt);
1019     if(!This->fmt){
1020         hr = E_OUTOFMEMORY;
1021         goto exit;
1022     }
1023
1024     This->vols = HeapAlloc(GetProcessHeap(), 0, fmt->nChannels * sizeof(float));
1025     if(!This->vols){
1026         hr = E_OUTOFMEMORY;
1027         goto exit;
1028     }
1029
1030     for(i = 0; i < fmt->nChannels; ++i)
1031         This->vols[i] = 1.f;
1032
1033     This->share = mode;
1034     This->flags = flags;
1035
1036     EnterCriticalSection(&g_sessions_lock);
1037
1038     hr = get_audio_session(sessionguid, This->parent, fmt->nChannels,
1039             &This->session);
1040     if(FAILED(hr)){
1041         LeaveCriticalSection(&g_sessions_lock);
1042         goto exit;
1043     }
1044
1045     list_add_tail(&This->session->clients, &This->entry);
1046
1047     LeaveCriticalSection(&g_sessions_lock);
1048
1049     This->initted = TRUE;
1050
1051 exit:
1052     HeapFree(GetProcessHeap(), 0, sw_params);
1053     if(FAILED(hr)){
1054         HeapFree(GetProcessHeap(), 0, This->local_buffer);
1055         This->local_buffer = NULL;
1056         CoTaskMemFree(This->fmt);
1057         This->fmt = NULL;
1058         HeapFree(GetProcessHeap(), 0, This->vols);
1059         This->vols = NULL;
1060     }
1061
1062     LeaveCriticalSection(&This->lock);
1063
1064     return hr;
1065 }
1066
1067 static HRESULT WINAPI AudioClient_GetBufferSize(IAudioClient *iface,
1068         UINT32 *out)
1069 {
1070     ACImpl *This = impl_from_IAudioClient(iface);
1071
1072     TRACE("(%p)->(%p)\n", This, out);
1073
1074     if(!out)
1075         return E_POINTER;
1076
1077     EnterCriticalSection(&This->lock);
1078
1079     if(!This->initted){
1080         LeaveCriticalSection(&This->lock);
1081         return AUDCLNT_E_NOT_INITIALIZED;
1082     }
1083
1084     *out = This->bufsize_frames;
1085
1086     LeaveCriticalSection(&This->lock);
1087
1088     return S_OK;
1089 }
1090
1091 static HRESULT WINAPI AudioClient_GetStreamLatency(IAudioClient *iface,
1092         REFERENCE_TIME *latency)
1093 {
1094     ACImpl *This = impl_from_IAudioClient(iface);
1095
1096     TRACE("(%p)->(%p)\n", This, latency);
1097
1098     if(!latency)
1099         return E_POINTER;
1100
1101     EnterCriticalSection(&This->lock);
1102
1103     if(!This->initted){
1104         LeaveCriticalSection(&This->lock);
1105         return AUDCLNT_E_NOT_INITIALIZED;
1106     }
1107
1108     LeaveCriticalSection(&This->lock);
1109
1110     *latency = 500000;
1111
1112     return S_OK;
1113 }
1114
1115 static HRESULT WINAPI AudioClient_GetCurrentPadding(IAudioClient *iface,
1116         UINT32 *out)
1117 {
1118     ACImpl *This = impl_from_IAudioClient(iface);
1119
1120     TRACE("(%p)->(%p)\n", This, out);
1121
1122     if(!out)
1123         return E_POINTER;
1124
1125     EnterCriticalSection(&This->lock);
1126
1127     if(!This->initted){
1128         LeaveCriticalSection(&This->lock);
1129         return AUDCLNT_E_NOT_INITIALIZED;
1130     }
1131
1132     if(This->dataflow == eRender){
1133         snd_pcm_sframes_t avail_frames;
1134
1135         avail_frames = snd_pcm_avail_update(This->pcm_handle);
1136         if(This->alsa_bufsize_frames < avail_frames ||
1137                 snd_pcm_state(This->pcm_handle) == SND_PCM_STATE_XRUN)
1138             *out = This->held_frames;
1139         else
1140             *out = This->alsa_bufsize_frames - avail_frames + This->held_frames;
1141         TRACE("PCM state: %u, avail: %ld, pad: %u\n",
1142                 snd_pcm_state(This->pcm_handle), avail_frames, *out);
1143     }else if(This->dataflow == eCapture){
1144         *out = This->held_frames;
1145     }else{
1146         LeaveCriticalSection(&This->lock);
1147         return E_UNEXPECTED;
1148     }
1149
1150     LeaveCriticalSection(&This->lock);
1151
1152     return S_OK;
1153 }
1154
1155 static DWORD get_channel_mask(unsigned int channels)
1156 {
1157     switch(channels){
1158     case 0:
1159         return 0;
1160     case 1:
1161         return KSAUDIO_SPEAKER_MONO;
1162     case 2:
1163         return KSAUDIO_SPEAKER_STEREO;
1164     case 3:
1165         return KSAUDIO_SPEAKER_STEREO | SPEAKER_LOW_FREQUENCY;
1166     case 4:
1167         return KSAUDIO_SPEAKER_QUAD;    /* not _SURROUND */
1168     case 5:
1169         return KSAUDIO_SPEAKER_QUAD | SPEAKER_LOW_FREQUENCY;
1170     case 6:
1171         return KSAUDIO_SPEAKER_5POINT1; /* not 5POINT1_SURROUND */
1172     case 7:
1173         return KSAUDIO_SPEAKER_5POINT1 | SPEAKER_BACK_CENTER;
1174     case 8:
1175         return KSAUDIO_SPEAKER_7POINT1; /* not 7POINT1_SURROUND */
1176     }
1177     FIXME("Unknown speaker configuration: %u\n", channels);
1178     return 0;
1179 }
1180
1181 static HRESULT WINAPI AudioClient_IsFormatSupported(IAudioClient *iface,
1182         AUDCLNT_SHAREMODE mode, const WAVEFORMATEX *fmt,
1183         WAVEFORMATEX **out)
1184 {
1185     ACImpl *This = impl_from_IAudioClient(iface);
1186     snd_pcm_format_mask_t *formats = NULL;
1187     HRESULT hr = S_OK;
1188     WAVEFORMATEX *closest = NULL;
1189     const WAVEFORMATEXTENSIBLE *fmtex = (const WAVEFORMATEXTENSIBLE *)fmt;
1190     unsigned int max = 0, min = 0;
1191     int err;
1192
1193     TRACE("(%p)->(%x, %p, %p)\n", This, mode, fmt, out);
1194
1195     if(!fmt || (mode == AUDCLNT_SHAREMODE_SHARED && !out))
1196         return E_POINTER;
1197
1198     if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
1199         return E_INVALIDARG;
1200
1201     if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1202             fmt->cbSize < sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX))
1203         return E_INVALIDARG;
1204
1205     dump_fmt(fmt);
1206
1207     if(out){
1208         *out = NULL;
1209         if(mode != AUDCLNT_SHAREMODE_SHARED)
1210             out = NULL;
1211     }
1212
1213     EnterCriticalSection(&This->lock);
1214
1215     if((err = snd_pcm_hw_params_any(This->pcm_handle, This->hw_params)) < 0){
1216         hr = E_FAIL;
1217         goto exit;
1218     }
1219
1220     formats = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1221             snd_pcm_format_mask_sizeof());
1222     if(!formats){
1223         hr = E_OUTOFMEMORY;
1224         goto exit;
1225     }
1226
1227     snd_pcm_hw_params_get_format_mask(This->hw_params, formats);
1228
1229     if(fmt->wFormatTag == WAVE_FORMAT_PCM ||
1230             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1231              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))){
1232         switch(fmt->wBitsPerSample){
1233         case 8:
1234             if(!snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_U8)){
1235                 hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1236                 goto exit;
1237             }
1238             break;
1239         case 16:
1240             if(!snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S16_LE)){
1241                 hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1242                 goto exit;
1243             }
1244             break;
1245         case 24:
1246             if(!snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S24_3LE)){
1247                 hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1248                 goto exit;
1249             }
1250             break;
1251         case 32:
1252             if(!snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S32_LE)){
1253                 hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1254                 goto exit;
1255             }
1256             break;
1257         default:
1258             hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1259             goto exit;
1260         }
1261     }else if(fmt->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
1262             (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1263              IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))){
1264         switch(fmt->wBitsPerSample){
1265         case 32:
1266             if(!snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_FLOAT_LE)){
1267                 hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1268                 goto exit;
1269             }
1270             break;
1271         case 64:
1272             if(!snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_FLOAT64_LE)){
1273                 hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1274                 goto exit;
1275             }
1276             break;
1277         default:
1278             hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1279             goto exit;
1280         }
1281     }else{
1282         hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1283         goto exit;
1284     }
1285
1286     closest = clone_format(fmt);
1287     if(!closest){
1288         hr = E_OUTOFMEMORY;
1289         goto exit;
1290     }
1291
1292     if((err = snd_pcm_hw_params_get_rate_min(This->hw_params, &min, NULL)) < 0){
1293         hr = E_FAIL;
1294         WARN("Unable to get min rate: %d (%s)\n", err, snd_strerror(err));
1295         goto exit;
1296     }
1297
1298     if((err = snd_pcm_hw_params_get_rate_max(This->hw_params, &max, NULL)) < 0){
1299         hr = E_FAIL;
1300         WARN("Unable to get max rate: %d (%s)\n", err, snd_strerror(err));
1301         goto exit;
1302     }
1303
1304     if(fmt->nSamplesPerSec < min || fmt->nSamplesPerSec > max){
1305         hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1306         goto exit;
1307     }
1308
1309     if((err = snd_pcm_hw_params_get_channels_min(This->hw_params, &min)) < 0){
1310         hr = E_FAIL;
1311         WARN("Unable to get min channels: %d (%s)\n", err, snd_strerror(err));
1312         goto exit;
1313     }
1314
1315     if((err = snd_pcm_hw_params_get_channels_max(This->hw_params, &max)) < 0){
1316         hr = E_FAIL;
1317         WARN("Unable to get max channels: %d (%s)\n", err, snd_strerror(err));
1318         goto exit;
1319     }
1320     if(max > 8)
1321         max = 2;
1322     if(fmt->nChannels > max){
1323         hr = S_FALSE;
1324         closest->nChannels = max;
1325     }else if(fmt->nChannels < min){
1326         hr = S_FALSE;
1327         closest->nChannels = min;
1328     }
1329
1330     if(closest->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
1331         DWORD mask = get_channel_mask(closest->nChannels);
1332
1333         ((WAVEFORMATEXTENSIBLE*)closest)->dwChannelMask = mask;
1334
1335         if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
1336                 fmtex->dwChannelMask != 0 &&
1337                 fmtex->dwChannelMask != mask)
1338             hr = S_FALSE;
1339     }
1340
1341 exit:
1342     LeaveCriticalSection(&This->lock);
1343     HeapFree(GetProcessHeap(), 0, formats);
1344
1345     if(hr == S_FALSE && !out)
1346         hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
1347
1348     if(hr == S_FALSE && out) {
1349         closest->nBlockAlign =
1350             closest->nChannels * closest->wBitsPerSample / 8;
1351         closest->nAvgBytesPerSec =
1352             closest->nBlockAlign * closest->nSamplesPerSec;
1353         *out = closest;
1354     } else
1355         CoTaskMemFree(closest);
1356
1357     TRACE("returning: %08x\n", hr);
1358     return hr;
1359 }
1360
1361 static HRESULT WINAPI AudioClient_GetMixFormat(IAudioClient *iface,
1362         WAVEFORMATEX **pwfx)
1363 {
1364     ACImpl *This = impl_from_IAudioClient(iface);
1365     WAVEFORMATEXTENSIBLE *fmt;
1366     snd_pcm_format_mask_t *formats;
1367     unsigned int max_rate, max_channels;
1368     int err;
1369     HRESULT hr = S_OK;
1370
1371     TRACE("(%p)->(%p)\n", This, pwfx);
1372
1373     if(!pwfx)
1374         return E_POINTER;
1375     *pwfx = NULL;
1376
1377     fmt = CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
1378     if(!fmt)
1379         return E_OUTOFMEMORY;
1380
1381     formats = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_format_mask_sizeof());
1382     if(!formats){
1383         CoTaskMemFree(fmt);
1384         return E_OUTOFMEMORY;
1385     }
1386
1387     EnterCriticalSection(&This->lock);
1388
1389     if((err = snd_pcm_hw_params_any(This->pcm_handle, This->hw_params)) < 0){
1390         WARN("Unable to get hw_params: %d (%s)\n", err, snd_strerror(err));
1391         hr = E_FAIL;
1392         goto exit;
1393     }
1394
1395     snd_pcm_hw_params_get_format_mask(This->hw_params, formats);
1396
1397     fmt->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
1398     if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_FLOAT_LE)){
1399         fmt->Format.wBitsPerSample = 32;
1400         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
1401     }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S16_LE)){
1402         fmt->Format.wBitsPerSample = 16;
1403         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1404     }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_U8)){
1405         fmt->Format.wBitsPerSample = 8;
1406         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1407     }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S32_LE)){
1408         fmt->Format.wBitsPerSample = 32;
1409         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1410     }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S24_3LE)){
1411         fmt->Format.wBitsPerSample = 24;
1412         fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
1413     }else{
1414         ERR("Didn't recognize any available ALSA formats\n");
1415         hr = E_FAIL;
1416         goto exit;
1417     }
1418
1419     if((err = snd_pcm_hw_params_get_channels_max(This->hw_params,
1420                     &max_channels)) < 0){
1421         WARN("Unable to get max channels: %d (%s)\n", err, snd_strerror(err));
1422         hr = E_FAIL;
1423         goto exit;
1424     }
1425
1426     if(max_channels > 2){
1427         FIXME("Don't know what to do with %u channels, pretending there's "
1428                 "only 2 channels\n", max_channels);
1429         fmt->Format.nChannels = 2;
1430     }else
1431         fmt->Format.nChannels = max_channels;
1432
1433     fmt->dwChannelMask = get_channel_mask(fmt->Format.nChannels);
1434
1435     if((err = snd_pcm_hw_params_get_rate_max(This->hw_params, &max_rate,
1436                     NULL)) < 0){
1437         WARN("Unable to get max rate: %d (%s)\n", err, snd_strerror(err));
1438         hr = E_FAIL;
1439         goto exit;
1440     }
1441
1442     if(max_rate >= 48000)
1443         fmt->Format.nSamplesPerSec = 48000;
1444     else if(max_rate >= 44100)
1445         fmt->Format.nSamplesPerSec = 44100;
1446     else if(max_rate >= 22050)
1447         fmt->Format.nSamplesPerSec = 22050;
1448     else if(max_rate >= 11025)
1449         fmt->Format.nSamplesPerSec = 11025;
1450     else if(max_rate >= 8000)
1451         fmt->Format.nSamplesPerSec = 8000;
1452     else{
1453         ERR("Unknown max rate: %u\n", max_rate);
1454         hr = E_FAIL;
1455         goto exit;
1456     }
1457
1458     fmt->Format.nBlockAlign = (fmt->Format.wBitsPerSample *
1459             fmt->Format.nChannels) / 8;
1460     fmt->Format.nAvgBytesPerSec = fmt->Format.nSamplesPerSec *
1461         fmt->Format.nBlockAlign;
1462
1463     fmt->Samples.wValidBitsPerSample = fmt->Format.wBitsPerSample;
1464     fmt->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
1465
1466     dump_fmt((WAVEFORMATEX*)fmt);
1467     *pwfx = (WAVEFORMATEX*)fmt;
1468
1469 exit:
1470     LeaveCriticalSection(&This->lock);
1471     if(FAILED(hr))
1472         CoTaskMemFree(fmt);
1473     HeapFree(GetProcessHeap(), 0, formats);
1474
1475     return hr;
1476 }
1477
1478 static HRESULT WINAPI AudioClient_GetDevicePeriod(IAudioClient *iface,
1479         REFERENCE_TIME *defperiod, REFERENCE_TIME *minperiod)
1480 {
1481     ACImpl *This = impl_from_IAudioClient(iface);
1482
1483     TRACE("(%p)->(%p, %p)\n", This, defperiod, minperiod);
1484
1485     if(!defperiod && !minperiod)
1486         return E_POINTER;
1487
1488     if(defperiod)
1489         *defperiod = DefaultPeriod;
1490     if(minperiod)
1491         *minperiod = MinimumPeriod;
1492
1493     return S_OK;
1494 }
1495
1496 static snd_pcm_sframes_t alsa_write_best_effort(snd_pcm_t *handle, BYTE *buf,
1497         snd_pcm_uframes_t frames, ACImpl *This)
1498 {
1499     snd_pcm_sframes_t written;
1500
1501     if(This->session->mute){
1502         int err;
1503         if((err = snd_pcm_format_set_silence(This->alsa_format, buf,
1504                         frames * This->fmt->nChannels)) < 0)
1505             WARN("Setting buffer to silence failed: %d (%s)\n", err,
1506                     snd_strerror(err));
1507     }
1508
1509     written = snd_pcm_writei(handle, buf, frames);
1510     if(written < 0){
1511         int ret;
1512
1513         if(written == -EAGAIN)
1514             /* buffer full */
1515             return 0;
1516
1517         WARN("writei failed, recovering: %ld (%s)\n", written,
1518                 snd_strerror(written));
1519
1520         ret = snd_pcm_recover(handle, written, 0);
1521         if(ret < 0){
1522             WARN("Could not recover: %d (%s)\n", ret, snd_strerror(ret));
1523             return ret;
1524         }
1525
1526         written = snd_pcm_writei(handle, buf, frames);
1527     }
1528
1529     return written;
1530 }
1531
1532 static void alsa_write_data(ACImpl *This)
1533 {
1534     snd_pcm_sframes_t written;
1535     snd_pcm_uframes_t to_write, avail;
1536     int err;
1537     BYTE *buf =
1538         This->local_buffer + (This->lcl_offs_frames * This->fmt->nBlockAlign);
1539
1540     /* this call seems to be required to get an accurate snd_pcm_state() */
1541     avail = snd_pcm_avail_update(This->pcm_handle);
1542
1543     if(snd_pcm_state(This->pcm_handle) == SND_PCM_STATE_XRUN ||
1544             avail > This->alsa_bufsize_frames){
1545         TRACE("XRun state, recovering\n");
1546
1547         if((err = snd_pcm_recover(This->pcm_handle, -EPIPE, 1)) < 0)
1548             WARN("snd_pcm_recover failed: %d (%s)\n", err, snd_strerror(err));
1549
1550         if((err = snd_pcm_reset(This->pcm_handle)) < 0)
1551             WARN("snd_pcm_reset failed: %d (%s)\n", err, snd_strerror(err));
1552
1553         if((err = snd_pcm_prepare(This->pcm_handle)) < 0)
1554             WARN("snd_pcm_prepare failed: %d (%s)\n", err, snd_strerror(err));
1555     }
1556
1557     if(This->held_frames == 0)
1558         return;
1559
1560     if(This->lcl_offs_frames + This->held_frames > This->bufsize_frames)
1561         to_write = This->bufsize_frames - This->lcl_offs_frames;
1562     else
1563         to_write = This->held_frames;
1564
1565     written = alsa_write_best_effort(This->pcm_handle, buf, to_write, This);
1566     if(written < 0){
1567         WARN("Couldn't write: %ld (%s)\n", written, snd_strerror(written));
1568         return;
1569     }
1570
1571     This->lcl_offs_frames += written;
1572     This->lcl_offs_frames %= This->bufsize_frames;
1573     This->held_frames -= written;
1574
1575     if(written < to_write){
1576         /* ALSA buffer probably full */
1577         return;
1578     }
1579
1580     if(This->held_frames){
1581         /* wrapped and have some data back at the start to write */
1582         written = alsa_write_best_effort(This->pcm_handle, This->local_buffer,
1583                 This->held_frames, This);
1584         if(written < 0){
1585             WARN("Couldn't write: %ld (%s)\n", written, snd_strerror(written));
1586             return;
1587         }
1588
1589         This->lcl_offs_frames += written;
1590         This->lcl_offs_frames %= This->bufsize_frames;
1591         This->held_frames -= written;
1592     }
1593 }
1594
1595 static void alsa_read_data(ACImpl *This)
1596 {
1597     snd_pcm_sframes_t pos, readable, nread;
1598
1599     pos = (This->held_frames + This->lcl_offs_frames) % This->bufsize_frames;
1600     readable = This->bufsize_frames - pos;
1601
1602     nread = snd_pcm_readi(This->pcm_handle,
1603             This->local_buffer + pos * This->fmt->nBlockAlign, readable);
1604     if(nread < 0){
1605         int ret;
1606
1607         WARN("read failed, recovering: %ld (%s)\n", nread, snd_strerror(nread));
1608
1609         ret = snd_pcm_recover(This->pcm_handle, nread, 0);
1610         if(ret < 0){
1611             WARN("Recover failed: %d (%s)\n", ret, snd_strerror(ret));
1612             return;
1613         }
1614
1615         nread = snd_pcm_readi(This->pcm_handle,
1616                 This->local_buffer + pos * This->fmt->nBlockAlign, readable);
1617         if(nread < 0){
1618             WARN("read failed: %ld (%s)\n", nread, snd_strerror(nread));
1619             return;
1620         }
1621     }
1622
1623     if(This->session->mute){
1624         int err;
1625         if((err = snd_pcm_format_set_silence(This->alsa_format,
1626                         This->local_buffer + pos * This->fmt->nBlockAlign,
1627                         nread)) < 0)
1628             WARN("Setting buffer to silence failed: %d (%s)\n", err,
1629                     snd_strerror(err));
1630     }
1631
1632     This->held_frames += nread;
1633
1634     if(This->held_frames > This->bufsize_frames){
1635         WARN("Overflow of unread data\n");
1636         This->lcl_offs_frames += This->held_frames;
1637         This->lcl_offs_frames %= This->bufsize_frames;
1638         This->held_frames = This->bufsize_frames;
1639     }
1640 }
1641
1642 static void CALLBACK alsa_push_buffer_data(void *user, BOOLEAN timer)
1643 {
1644     ACImpl *This = user;
1645
1646     EnterCriticalSection(&This->lock);
1647
1648     if(This->started){
1649         if(This->dataflow == eRender)
1650             alsa_write_data(This);
1651         else if(This->dataflow == eCapture)
1652             alsa_read_data(This);
1653
1654         if(This->event)
1655             SetEvent(This->event);
1656     }
1657
1658     LeaveCriticalSection(&This->lock);
1659 }
1660
1661 static HRESULT WINAPI AudioClient_Start(IAudioClient *iface)
1662 {
1663     ACImpl *This = impl_from_IAudioClient(iface);
1664
1665     TRACE("(%p)\n", This);
1666
1667     EnterCriticalSection(&This->lock);
1668
1669     if(!This->initted){
1670         LeaveCriticalSection(&This->lock);
1671         return AUDCLNT_E_NOT_INITIALIZED;
1672     }
1673
1674     if((This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) && !This->event){
1675         LeaveCriticalSection(&This->lock);
1676         return AUDCLNT_E_EVENTHANDLE_NOT_SET;
1677     }
1678
1679     if(This->started){
1680         LeaveCriticalSection(&This->lock);
1681         return AUDCLNT_E_NOT_STOPPED;
1682     }
1683
1684     if(This->dataflow == eCapture){
1685         /* dump any data that might be leftover in the ALSA capture buffer */
1686         snd_pcm_readi(This->pcm_handle, This->local_buffer,
1687                 This->bufsize_frames);
1688     }
1689
1690     if(!CreateTimerQueueTimer(&This->timer, g_timer_q, alsa_push_buffer_data,
1691             This, 0, This->mmdev_period_rt / 10000, WT_EXECUTEINTIMERTHREAD)){
1692         LeaveCriticalSection(&This->lock);
1693         WARN("Unable to create timer: %u\n", GetLastError());
1694         return E_FAIL;
1695     }
1696
1697     This->started = TRUE;
1698
1699     LeaveCriticalSection(&This->lock);
1700
1701     return S_OK;
1702 }
1703
1704 static HRESULT WINAPI AudioClient_Stop(IAudioClient *iface)
1705 {
1706     ACImpl *This = impl_from_IAudioClient(iface);
1707     HANDLE event;
1708     BOOL wait;
1709
1710     TRACE("(%p)\n", This);
1711
1712     EnterCriticalSection(&This->lock);
1713
1714     if(!This->initted){
1715         LeaveCriticalSection(&This->lock);
1716         return AUDCLNT_E_NOT_INITIALIZED;
1717     }
1718
1719     if(!This->started){
1720         LeaveCriticalSection(&This->lock);
1721         return S_FALSE;
1722     }
1723
1724     if(snd_pcm_drop(This->pcm_handle) < 0)
1725         WARN("snd_pcm_drop failed\n");
1726
1727     if(snd_pcm_reset(This->pcm_handle) < 0)
1728         WARN("snd_pcm_reset failed\n");
1729
1730     if(snd_pcm_prepare(This->pcm_handle) < 0)
1731         WARN("snd_pcm_prepare failed\n");
1732
1733     event = CreateEventW(NULL, TRUE, FALSE, NULL);
1734     wait = !DeleteTimerQueueTimer(g_timer_q, This->timer, event);
1735     if(wait)
1736         WARN("DeleteTimerQueueTimer error %u\n", GetLastError());
1737     wait = wait && GetLastError() == ERROR_IO_PENDING;
1738
1739     This->started = FALSE;
1740
1741     LeaveCriticalSection(&This->lock);
1742
1743     if(event && wait)
1744         WaitForSingleObject(event, INFINITE);
1745     CloseHandle(event);
1746
1747     return S_OK;
1748 }
1749
1750 static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
1751 {
1752     ACImpl *This = impl_from_IAudioClient(iface);
1753
1754     TRACE("(%p)\n", This);
1755
1756     EnterCriticalSection(&This->lock);
1757
1758     if(!This->initted){
1759         LeaveCriticalSection(&This->lock);
1760         return AUDCLNT_E_NOT_INITIALIZED;
1761     }
1762
1763     if(This->started){
1764         LeaveCriticalSection(&This->lock);
1765         return AUDCLNT_E_NOT_STOPPED;
1766     }
1767
1768     if(This->buf_state != NOT_LOCKED){
1769         LeaveCriticalSection(&This->lock);
1770         return AUDCLNT_E_BUFFER_OPERATION_PENDING;
1771     }
1772
1773     if(snd_pcm_drop(This->pcm_handle) < 0)
1774         WARN("snd_pcm_drop failed\n");
1775
1776     if(snd_pcm_reset(This->pcm_handle) < 0)
1777         WARN("snd_pcm_reset failed\n");
1778
1779     if(snd_pcm_prepare(This->pcm_handle) < 0)
1780         WARN("snd_pcm_prepare failed\n");
1781
1782     This->held_frames = 0;
1783     This->written_frames = 0;
1784     This->lcl_offs_frames = 0;
1785
1786     LeaveCriticalSection(&This->lock);
1787
1788     return S_OK;
1789 }
1790
1791 static HRESULT WINAPI AudioClient_SetEventHandle(IAudioClient *iface,
1792         HANDLE event)
1793 {
1794     ACImpl *This = impl_from_IAudioClient(iface);
1795
1796     TRACE("(%p)->(%p)\n", This, event);
1797
1798     if(!event)
1799         return E_INVALIDARG;
1800
1801     EnterCriticalSection(&This->lock);
1802
1803     if(!This->initted){
1804         LeaveCriticalSection(&This->lock);
1805         return AUDCLNT_E_NOT_INITIALIZED;
1806     }
1807
1808     if(!(This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK)){
1809         LeaveCriticalSection(&This->lock);
1810         return AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED;
1811     }
1812
1813     This->event = event;
1814
1815     LeaveCriticalSection(&This->lock);
1816
1817     return S_OK;
1818 }
1819
1820 static HRESULT WINAPI AudioClient_GetService(IAudioClient *iface, REFIID riid,
1821         void **ppv)
1822 {
1823     ACImpl *This = impl_from_IAudioClient(iface);
1824
1825     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
1826
1827     if(!ppv)
1828         return E_POINTER;
1829     *ppv = NULL;
1830
1831     EnterCriticalSection(&This->lock);
1832
1833     if(!This->initted){
1834         LeaveCriticalSection(&This->lock);
1835         return AUDCLNT_E_NOT_INITIALIZED;
1836     }
1837
1838     if(IsEqualIID(riid, &IID_IAudioRenderClient)){
1839         if(This->dataflow != eRender){
1840             LeaveCriticalSection(&This->lock);
1841             return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
1842         }
1843         IAudioRenderClient_AddRef(&This->IAudioRenderClient_iface);
1844         *ppv = &This->IAudioRenderClient_iface;
1845     }else if(IsEqualIID(riid, &IID_IAudioCaptureClient)){
1846         if(This->dataflow != eCapture){
1847             LeaveCriticalSection(&This->lock);
1848             return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
1849         }
1850         IAudioCaptureClient_AddRef(&This->IAudioCaptureClient_iface);
1851         *ppv = &This->IAudioCaptureClient_iface;
1852     }else if(IsEqualIID(riid, &IID_IAudioClock)){
1853         IAudioClock_AddRef(&This->IAudioClock_iface);
1854         *ppv = &This->IAudioClock_iface;
1855     }else if(IsEqualIID(riid, &IID_IAudioStreamVolume)){
1856         IAudioStreamVolume_AddRef(&This->IAudioStreamVolume_iface);
1857         *ppv = &This->IAudioStreamVolume_iface;
1858     }else if(IsEqualIID(riid, &IID_IAudioSessionControl)){
1859         if(!This->session_wrapper){
1860             This->session_wrapper = AudioSessionWrapper_Create(This);
1861             if(!This->session_wrapper){
1862                 LeaveCriticalSection(&This->lock);
1863                 return E_OUTOFMEMORY;
1864             }
1865         }else
1866             IAudioSessionControl2_AddRef(&This->session_wrapper->IAudioSessionControl2_iface);
1867
1868         *ppv = &This->session_wrapper->IAudioSessionControl2_iface;
1869     }else if(IsEqualIID(riid, &IID_IChannelAudioVolume)){
1870         if(!This->session_wrapper){
1871             This->session_wrapper = AudioSessionWrapper_Create(This);
1872             if(!This->session_wrapper){
1873                 LeaveCriticalSection(&This->lock);
1874                 return E_OUTOFMEMORY;
1875             }
1876         }else
1877             IChannelAudioVolume_AddRef(&This->session_wrapper->IChannelAudioVolume_iface);
1878
1879         *ppv = &This->session_wrapper->IChannelAudioVolume_iface;
1880     }else if(IsEqualIID(riid, &IID_ISimpleAudioVolume)){
1881         if(!This->session_wrapper){
1882             This->session_wrapper = AudioSessionWrapper_Create(This);
1883             if(!This->session_wrapper){
1884                 LeaveCriticalSection(&This->lock);
1885                 return E_OUTOFMEMORY;
1886             }
1887         }else
1888             ISimpleAudioVolume_AddRef(&This->session_wrapper->ISimpleAudioVolume_iface);
1889
1890         *ppv = &This->session_wrapper->ISimpleAudioVolume_iface;
1891     }
1892
1893     if(*ppv){
1894         LeaveCriticalSection(&This->lock);
1895         return S_OK;
1896     }
1897
1898     LeaveCriticalSection(&This->lock);
1899
1900     FIXME("stub %s\n", debugstr_guid(riid));
1901     return E_NOINTERFACE;
1902 }
1903
1904 static const IAudioClientVtbl AudioClient_Vtbl =
1905 {
1906     AudioClient_QueryInterface,
1907     AudioClient_AddRef,
1908     AudioClient_Release,
1909     AudioClient_Initialize,
1910     AudioClient_GetBufferSize,
1911     AudioClient_GetStreamLatency,
1912     AudioClient_GetCurrentPadding,
1913     AudioClient_IsFormatSupported,
1914     AudioClient_GetMixFormat,
1915     AudioClient_GetDevicePeriod,
1916     AudioClient_Start,
1917     AudioClient_Stop,
1918     AudioClient_Reset,
1919     AudioClient_SetEventHandle,
1920     AudioClient_GetService
1921 };
1922
1923 static HRESULT WINAPI AudioRenderClient_QueryInterface(
1924         IAudioRenderClient *iface, REFIID riid, void **ppv)
1925 {
1926     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
1927
1928     if(!ppv)
1929         return E_POINTER;
1930     *ppv = NULL;
1931
1932     if(IsEqualIID(riid, &IID_IUnknown) ||
1933             IsEqualIID(riid, &IID_IAudioRenderClient))
1934         *ppv = iface;
1935     if(*ppv){
1936         IUnknown_AddRef((IUnknown*)*ppv);
1937         return S_OK;
1938     }
1939
1940     WARN("Unknown interface %s\n", debugstr_guid(riid));
1941     return E_NOINTERFACE;
1942 }
1943
1944 static ULONG WINAPI AudioRenderClient_AddRef(IAudioRenderClient *iface)
1945 {
1946     ACImpl *This = impl_from_IAudioRenderClient(iface);
1947     return AudioClient_AddRef(&This->IAudioClient_iface);
1948 }
1949
1950 static ULONG WINAPI AudioRenderClient_Release(IAudioRenderClient *iface)
1951 {
1952     ACImpl *This = impl_from_IAudioRenderClient(iface);
1953     return AudioClient_Release(&This->IAudioClient_iface);
1954 }
1955
1956 static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
1957         UINT32 frames, BYTE **data)
1958 {
1959     ACImpl *This = impl_from_IAudioRenderClient(iface);
1960     UINT32 write_pos;
1961     UINT32 pad;
1962     HRESULT hr;
1963
1964     TRACE("(%p)->(%u, %p)\n", This, frames, data);
1965
1966     if(!data)
1967         return E_POINTER;
1968
1969     EnterCriticalSection(&This->lock);
1970
1971     if(This->buf_state != NOT_LOCKED){
1972         LeaveCriticalSection(&This->lock);
1973         return AUDCLNT_E_OUT_OF_ORDER;
1974     }
1975
1976     if(!frames){
1977         This->buf_state = LOCKED_NORMAL;
1978         LeaveCriticalSection(&This->lock);
1979         return S_OK;
1980     }
1981
1982     hr = IAudioClient_GetCurrentPadding(&This->IAudioClient_iface, &pad);
1983     if(FAILED(hr)){
1984         LeaveCriticalSection(&This->lock);
1985         return hr;
1986     }
1987
1988     if(pad + frames > This->bufsize_frames){
1989         LeaveCriticalSection(&This->lock);
1990         return AUDCLNT_E_BUFFER_TOO_LARGE;
1991     }
1992
1993     write_pos =
1994         (This->lcl_offs_frames + This->held_frames) % This->bufsize_frames;
1995     if(write_pos + frames > This->bufsize_frames){
1996         if(This->tmp_buffer_frames < frames){
1997             if(This->tmp_buffer)
1998                 This->tmp_buffer = HeapReAlloc(GetProcessHeap(), 0,
1999                         This->tmp_buffer, frames * This->fmt->nBlockAlign);
2000             else
2001                 This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
2002                         frames * This->fmt->nBlockAlign);
2003             if(!This->tmp_buffer){
2004                 LeaveCriticalSection(&This->lock);
2005                 return E_OUTOFMEMORY;
2006             }
2007             This->tmp_buffer_frames = frames;
2008         }
2009         *data = This->tmp_buffer;
2010         This->buf_state = LOCKED_WRAPPED;
2011     }else{
2012         *data = This->local_buffer + write_pos * This->fmt->nBlockAlign;
2013         This->buf_state = LOCKED_NORMAL;
2014     }
2015
2016     LeaveCriticalSection(&This->lock);
2017
2018     return S_OK;
2019 }
2020
2021 static void alsa_wrap_buffer(ACImpl *This, BYTE *buffer, UINT32 written_frames)
2022 {
2023     snd_pcm_uframes_t write_offs_frames =
2024         (This->lcl_offs_frames + This->held_frames) % This->bufsize_frames;
2025     UINT32 write_offs_bytes = write_offs_frames * This->fmt->nBlockAlign;
2026     snd_pcm_uframes_t chunk_frames = This->bufsize_frames - write_offs_frames;
2027     UINT32 chunk_bytes = chunk_frames * This->fmt->nBlockAlign;
2028     UINT32 written_bytes = written_frames * This->fmt->nBlockAlign;
2029
2030     if(written_bytes <= chunk_bytes){
2031         memcpy(This->local_buffer + write_offs_bytes, buffer, written_bytes);
2032     }else{
2033         memcpy(This->local_buffer + write_offs_bytes, buffer, chunk_bytes);
2034         memcpy(This->local_buffer, buffer + chunk_bytes,
2035                 written_bytes - chunk_bytes);
2036     }
2037 }
2038
2039 static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
2040         IAudioRenderClient *iface, UINT32 written_frames, DWORD flags)
2041 {
2042     ACImpl *This = impl_from_IAudioRenderClient(iface);
2043     BYTE *buffer;
2044
2045     TRACE("(%p)->(%u, %x)\n", This, written_frames, flags);
2046
2047     EnterCriticalSection(&This->lock);
2048
2049     if(This->buf_state == NOT_LOCKED || !written_frames){
2050         This->buf_state = NOT_LOCKED;
2051         LeaveCriticalSection(&This->lock);
2052         return written_frames ? AUDCLNT_E_OUT_OF_ORDER : S_OK;
2053     }
2054
2055     if(This->buf_state == LOCKED_NORMAL)
2056         buffer = This->local_buffer + This->fmt->nBlockAlign *
2057           ((This->lcl_offs_frames + This->held_frames) % This->bufsize_frames);
2058     else
2059         buffer = This->tmp_buffer;
2060
2061     if(flags & AUDCLNT_BUFFERFLAGS_SILENT){
2062         if(This->fmt->wBitsPerSample == 8)
2063             memset(buffer, 128, written_frames * This->fmt->nBlockAlign);
2064         else
2065             memset(buffer, 0, written_frames * This->fmt->nBlockAlign);
2066     }
2067
2068     if(This->buf_state == LOCKED_WRAPPED)
2069         alsa_wrap_buffer(This, buffer, written_frames);
2070
2071     This->held_frames += written_frames;
2072     This->written_frames += written_frames;
2073     This->buf_state = NOT_LOCKED;
2074
2075     LeaveCriticalSection(&This->lock);
2076
2077     return S_OK;
2078 }
2079
2080 static const IAudioRenderClientVtbl AudioRenderClient_Vtbl = {
2081     AudioRenderClient_QueryInterface,
2082     AudioRenderClient_AddRef,
2083     AudioRenderClient_Release,
2084     AudioRenderClient_GetBuffer,
2085     AudioRenderClient_ReleaseBuffer
2086 };
2087
2088 static HRESULT WINAPI AudioCaptureClient_QueryInterface(
2089         IAudioCaptureClient *iface, REFIID riid, void **ppv)
2090 {
2091     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2092
2093     if(!ppv)
2094         return E_POINTER;
2095     *ppv = NULL;
2096
2097     if(IsEqualIID(riid, &IID_IUnknown) ||
2098             IsEqualIID(riid, &IID_IAudioCaptureClient))
2099         *ppv = iface;
2100     if(*ppv){
2101         IUnknown_AddRef((IUnknown*)*ppv);
2102         return S_OK;
2103     }
2104
2105     WARN("Unknown interface %s\n", debugstr_guid(riid));
2106     return E_NOINTERFACE;
2107 }
2108
2109 static ULONG WINAPI AudioCaptureClient_AddRef(IAudioCaptureClient *iface)
2110 {
2111     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2112     return IAudioClient_AddRef(&This->IAudioClient_iface);
2113 }
2114
2115 static ULONG WINAPI AudioCaptureClient_Release(IAudioCaptureClient *iface)
2116 {
2117     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2118     return IAudioClient_Release(&This->IAudioClient_iface);
2119 }
2120
2121 static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
2122         BYTE **data, UINT32 *frames, DWORD *flags, UINT64 *devpos,
2123         UINT64 *qpcpos)
2124 {
2125     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2126     HRESULT hr;
2127
2128     TRACE("(%p)->(%p, %p, %p, %p, %p)\n", This, data, frames, flags,
2129             devpos, qpcpos);
2130
2131     if(!data || !frames || !flags)
2132         return E_POINTER;
2133
2134     EnterCriticalSection(&This->lock);
2135
2136     if(This->buf_state != NOT_LOCKED){
2137         LeaveCriticalSection(&This->lock);
2138         return AUDCLNT_E_OUT_OF_ORDER;
2139     }
2140
2141     hr = IAudioCaptureClient_GetNextPacketSize(iface, frames);
2142     if(FAILED(hr)){
2143         LeaveCriticalSection(&This->lock);
2144         return hr;
2145     }
2146
2147     *flags = 0;
2148
2149     if(This->lcl_offs_frames + *frames > This->bufsize_frames){
2150         UINT32 chunk_bytes, offs_bytes, frames_bytes;
2151         if(This->tmp_buffer_frames < *frames){
2152             if(This->tmp_buffer)
2153                 This->tmp_buffer = HeapReAlloc(GetProcessHeap(), 0,
2154                         This->tmp_buffer, *frames * This->fmt->nBlockAlign);
2155             else
2156                 This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
2157                         *frames * This->fmt->nBlockAlign);
2158             if(!This->tmp_buffer){
2159                 LeaveCriticalSection(&This->lock);
2160                 return E_OUTOFMEMORY;
2161             }
2162             This->tmp_buffer_frames = *frames;
2163         }
2164
2165         *data = This->tmp_buffer;
2166         chunk_bytes = (This->bufsize_frames - This->lcl_offs_frames) *
2167             This->fmt->nBlockAlign;
2168         offs_bytes = This->lcl_offs_frames * This->fmt->nBlockAlign;
2169         frames_bytes = *frames * This->fmt->nBlockAlign;
2170         memcpy(This->tmp_buffer, This->local_buffer + offs_bytes, chunk_bytes);
2171         memcpy(This->tmp_buffer + chunk_bytes, This->local_buffer,
2172                 frames_bytes - chunk_bytes);
2173     }else
2174         *data = This->local_buffer +
2175             This->lcl_offs_frames * This->fmt->nBlockAlign;
2176
2177     This->buf_state = LOCKED_NORMAL;
2178
2179     if(devpos || qpcpos)
2180         IAudioClock_GetPosition(&This->IAudioClock_iface, devpos, qpcpos);
2181
2182     LeaveCriticalSection(&This->lock);
2183
2184     return *frames ? S_OK : AUDCLNT_S_BUFFER_EMPTY;
2185 }
2186
2187 static HRESULT WINAPI AudioCaptureClient_ReleaseBuffer(
2188         IAudioCaptureClient *iface, UINT32 done)
2189 {
2190     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2191
2192     TRACE("(%p)->(%u)\n", This, done);
2193
2194     EnterCriticalSection(&This->lock);
2195
2196     if(This->buf_state == NOT_LOCKED){
2197         LeaveCriticalSection(&This->lock);
2198         return AUDCLNT_E_OUT_OF_ORDER;
2199     }
2200
2201     This->held_frames -= done;
2202     This->lcl_offs_frames += done;
2203     This->lcl_offs_frames %= This->bufsize_frames;
2204
2205     This->buf_state = NOT_LOCKED;
2206
2207     LeaveCriticalSection(&This->lock);
2208
2209     return S_OK;
2210 }
2211
2212 static HRESULT WINAPI AudioCaptureClient_GetNextPacketSize(
2213         IAudioCaptureClient *iface, UINT32 *frames)
2214 {
2215     ACImpl *This = impl_from_IAudioCaptureClient(iface);
2216
2217     TRACE("(%p)->(%p)\n", This, frames);
2218
2219     return AudioClient_GetCurrentPadding(&This->IAudioClient_iface, frames);
2220 }
2221
2222 static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl =
2223 {
2224     AudioCaptureClient_QueryInterface,
2225     AudioCaptureClient_AddRef,
2226     AudioCaptureClient_Release,
2227     AudioCaptureClient_GetBuffer,
2228     AudioCaptureClient_ReleaseBuffer,
2229     AudioCaptureClient_GetNextPacketSize
2230 };
2231
2232 static HRESULT WINAPI AudioClock_QueryInterface(IAudioClock *iface,
2233         REFIID riid, void **ppv)
2234 {
2235     ACImpl *This = impl_from_IAudioClock(iface);
2236
2237     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2238
2239     if(!ppv)
2240         return E_POINTER;
2241     *ppv = NULL;
2242
2243     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClock))
2244         *ppv = iface;
2245     else if(IsEqualIID(riid, &IID_IAudioClock2))
2246         *ppv = &This->IAudioClock2_iface;
2247     if(*ppv){
2248         IUnknown_AddRef((IUnknown*)*ppv);
2249         return S_OK;
2250     }
2251
2252     WARN("Unknown interface %s\n", debugstr_guid(riid));
2253     return E_NOINTERFACE;
2254 }
2255
2256 static ULONG WINAPI AudioClock_AddRef(IAudioClock *iface)
2257 {
2258     ACImpl *This = impl_from_IAudioClock(iface);
2259     return IAudioClient_AddRef(&This->IAudioClient_iface);
2260 }
2261
2262 static ULONG WINAPI AudioClock_Release(IAudioClock *iface)
2263 {
2264     ACImpl *This = impl_from_IAudioClock(iface);
2265     return IAudioClient_Release(&This->IAudioClient_iface);
2266 }
2267
2268 static HRESULT WINAPI AudioClock_GetFrequency(IAudioClock *iface, UINT64 *freq)
2269 {
2270     ACImpl *This = impl_from_IAudioClock(iface);
2271
2272     TRACE("(%p)->(%p)\n", This, freq);
2273
2274     *freq = This->fmt->nSamplesPerSec;
2275
2276     return S_OK;
2277 }
2278
2279 static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
2280         UINT64 *qpctime)
2281 {
2282     ACImpl *This = impl_from_IAudioClock(iface);
2283     UINT32 pad;
2284     HRESULT hr;
2285
2286     TRACE("(%p)->(%p, %p)\n", This, pos, qpctime);
2287
2288     if(!pos)
2289         return E_POINTER;
2290
2291     EnterCriticalSection(&This->lock);
2292
2293     hr = IAudioClient_GetCurrentPadding(&This->IAudioClient_iface, &pad);
2294     if(FAILED(hr)){
2295         LeaveCriticalSection(&This->lock);
2296         return hr;
2297     }
2298
2299     if(This->dataflow == eRender)
2300         *pos = This->written_frames - pad;
2301     else if(This->dataflow == eCapture)
2302         *pos = This->written_frames + pad;
2303
2304     LeaveCriticalSection(&This->lock);
2305
2306     if(qpctime){
2307         LARGE_INTEGER stamp, freq;
2308         QueryPerformanceCounter(&stamp);
2309         QueryPerformanceFrequency(&freq);
2310         *qpctime = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
2311     }
2312
2313     return S_OK;
2314 }
2315
2316 static HRESULT WINAPI AudioClock_GetCharacteristics(IAudioClock *iface,
2317         DWORD *chars)
2318 {
2319     ACImpl *This = impl_from_IAudioClock(iface);
2320
2321     TRACE("(%p)->(%p)\n", This, chars);
2322
2323     if(!chars)
2324         return E_POINTER;
2325
2326     *chars = AUDIOCLOCK_CHARACTERISTIC_FIXED_FREQ;
2327
2328     return S_OK;
2329 }
2330
2331 static const IAudioClockVtbl AudioClock_Vtbl =
2332 {
2333     AudioClock_QueryInterface,
2334     AudioClock_AddRef,
2335     AudioClock_Release,
2336     AudioClock_GetFrequency,
2337     AudioClock_GetPosition,
2338     AudioClock_GetCharacteristics
2339 };
2340
2341 static HRESULT WINAPI AudioClock2_QueryInterface(IAudioClock2 *iface,
2342         REFIID riid, void **ppv)
2343 {
2344     ACImpl *This = impl_from_IAudioClock2(iface);
2345     return IAudioClock_QueryInterface(&This->IAudioClock_iface, riid, ppv);
2346 }
2347
2348 static ULONG WINAPI AudioClock2_AddRef(IAudioClock2 *iface)
2349 {
2350     ACImpl *This = impl_from_IAudioClock2(iface);
2351     return IAudioClient_AddRef(&This->IAudioClient_iface);
2352 }
2353
2354 static ULONG WINAPI AudioClock2_Release(IAudioClock2 *iface)
2355 {
2356     ACImpl *This = impl_from_IAudioClock2(iface);
2357     return IAudioClient_Release(&This->IAudioClient_iface);
2358 }
2359
2360 static HRESULT WINAPI AudioClock2_GetDevicePosition(IAudioClock2 *iface,
2361         UINT64 *pos, UINT64 *qpctime)
2362 {
2363     ACImpl *This = impl_from_IAudioClock2(iface);
2364
2365     FIXME("(%p)->(%p, %p)\n", This, pos, qpctime);
2366
2367     return E_NOTIMPL;
2368 }
2369
2370 static const IAudioClock2Vtbl AudioClock2_Vtbl =
2371 {
2372     AudioClock2_QueryInterface,
2373     AudioClock2_AddRef,
2374     AudioClock2_Release,
2375     AudioClock2_GetDevicePosition
2376 };
2377
2378 static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client)
2379 {
2380     AudioSessionWrapper *ret;
2381
2382     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
2383             sizeof(AudioSessionWrapper));
2384     if(!ret)
2385         return NULL;
2386
2387     ret->IAudioSessionControl2_iface.lpVtbl = &AudioSessionControl2_Vtbl;
2388     ret->ISimpleAudioVolume_iface.lpVtbl = &SimpleAudioVolume_Vtbl;
2389     ret->IChannelAudioVolume_iface.lpVtbl = &ChannelAudioVolume_Vtbl;
2390
2391     ret->ref = 1;
2392
2393     ret->client = client;
2394     if(client){
2395         ret->session = client->session;
2396         AudioClient_AddRef(&client->IAudioClient_iface);
2397     }
2398
2399     return ret;
2400 }
2401
2402 static HRESULT WINAPI AudioSessionControl_QueryInterface(
2403         IAudioSessionControl2 *iface, REFIID riid, void **ppv)
2404 {
2405     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2406
2407     if(!ppv)
2408         return E_POINTER;
2409     *ppv = NULL;
2410
2411     if(IsEqualIID(riid, &IID_IUnknown) ||
2412             IsEqualIID(riid, &IID_IAudioSessionControl) ||
2413             IsEqualIID(riid, &IID_IAudioSessionControl2))
2414         *ppv = iface;
2415     if(*ppv){
2416         IUnknown_AddRef((IUnknown*)*ppv);
2417         return S_OK;
2418     }
2419
2420     WARN("Unknown interface %s\n", debugstr_guid(riid));
2421     return E_NOINTERFACE;
2422 }
2423
2424 static ULONG WINAPI AudioSessionControl_AddRef(IAudioSessionControl2 *iface)
2425 {
2426     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2427     ULONG ref;
2428     ref = InterlockedIncrement(&This->ref);
2429     TRACE("(%p) Refcount now %u\n", This, ref);
2430     return ref;
2431 }
2432
2433 static ULONG WINAPI AudioSessionControl_Release(IAudioSessionControl2 *iface)
2434 {
2435     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2436     ULONG ref;
2437     ref = InterlockedDecrement(&This->ref);
2438     TRACE("(%p) Refcount now %u\n", This, ref);
2439     if(!ref){
2440         if(This->client){
2441             EnterCriticalSection(&This->client->lock);
2442             This->client->session_wrapper = NULL;
2443             LeaveCriticalSection(&This->client->lock);
2444             AudioClient_Release(&This->client->IAudioClient_iface);
2445         }
2446         HeapFree(GetProcessHeap(), 0, This);
2447     }
2448     return ref;
2449 }
2450
2451 static HRESULT WINAPI AudioSessionControl_GetState(IAudioSessionControl2 *iface,
2452         AudioSessionState *state)
2453 {
2454     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2455     ACImpl *client;
2456
2457     TRACE("(%p)->(%p)\n", This, state);
2458
2459     if(!state)
2460         return NULL_PTR_ERR;
2461
2462     EnterCriticalSection(&g_sessions_lock);
2463
2464     if(list_empty(&This->session->clients)){
2465         *state = AudioSessionStateExpired;
2466         LeaveCriticalSection(&g_sessions_lock);
2467         return S_OK;
2468     }
2469
2470     LIST_FOR_EACH_ENTRY(client, &This->session->clients, ACImpl, entry){
2471         EnterCriticalSection(&client->lock);
2472         if(client->started){
2473             *state = AudioSessionStateActive;
2474             LeaveCriticalSection(&client->lock);
2475             LeaveCriticalSection(&g_sessions_lock);
2476             return S_OK;
2477         }
2478         LeaveCriticalSection(&client->lock);
2479     }
2480
2481     LeaveCriticalSection(&g_sessions_lock);
2482
2483     *state = AudioSessionStateInactive;
2484
2485     return S_OK;
2486 }
2487
2488 static HRESULT WINAPI AudioSessionControl_GetDisplayName(
2489         IAudioSessionControl2 *iface, WCHAR **name)
2490 {
2491     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2492
2493     FIXME("(%p)->(%p) - stub\n", This, name);
2494
2495     return E_NOTIMPL;
2496 }
2497
2498 static HRESULT WINAPI AudioSessionControl_SetDisplayName(
2499         IAudioSessionControl2 *iface, const WCHAR *name, const GUID *session)
2500 {
2501     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2502
2503     FIXME("(%p)->(%p, %s) - stub\n", This, name, debugstr_guid(session));
2504
2505     return E_NOTIMPL;
2506 }
2507
2508 static HRESULT WINAPI AudioSessionControl_GetIconPath(
2509         IAudioSessionControl2 *iface, WCHAR **path)
2510 {
2511     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2512
2513     FIXME("(%p)->(%p) - stub\n", This, path);
2514
2515     return E_NOTIMPL;
2516 }
2517
2518 static HRESULT WINAPI AudioSessionControl_SetIconPath(
2519         IAudioSessionControl2 *iface, const WCHAR *path, const GUID *session)
2520 {
2521     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2522
2523     FIXME("(%p)->(%p, %s) - stub\n", This, path, debugstr_guid(session));
2524
2525     return E_NOTIMPL;
2526 }
2527
2528 static HRESULT WINAPI AudioSessionControl_GetGroupingParam(
2529         IAudioSessionControl2 *iface, GUID *group)
2530 {
2531     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2532
2533     FIXME("(%p)->(%p) - stub\n", This, group);
2534
2535     return E_NOTIMPL;
2536 }
2537
2538 static HRESULT WINAPI AudioSessionControl_SetGroupingParam(
2539         IAudioSessionControl2 *iface, const GUID *group, const GUID *session)
2540 {
2541     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2542
2543     FIXME("(%p)->(%s, %s) - stub\n", This, debugstr_guid(group),
2544             debugstr_guid(session));
2545
2546     return E_NOTIMPL;
2547 }
2548
2549 static HRESULT WINAPI AudioSessionControl_RegisterAudioSessionNotification(
2550         IAudioSessionControl2 *iface, IAudioSessionEvents *events)
2551 {
2552     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2553
2554     FIXME("(%p)->(%p) - stub\n", This, events);
2555
2556     return S_OK;
2557 }
2558
2559 static HRESULT WINAPI AudioSessionControl_UnregisterAudioSessionNotification(
2560         IAudioSessionControl2 *iface, IAudioSessionEvents *events)
2561 {
2562     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2563
2564     FIXME("(%p)->(%p) - stub\n", This, events);
2565
2566     return S_OK;
2567 }
2568
2569 static HRESULT WINAPI AudioSessionControl_GetSessionIdentifier(
2570         IAudioSessionControl2 *iface, WCHAR **id)
2571 {
2572     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2573
2574     FIXME("(%p)->(%p) - stub\n", This, id);
2575
2576     return E_NOTIMPL;
2577 }
2578
2579 static HRESULT WINAPI AudioSessionControl_GetSessionInstanceIdentifier(
2580         IAudioSessionControl2 *iface, WCHAR **id)
2581 {
2582     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2583
2584     FIXME("(%p)->(%p) - stub\n", This, id);
2585
2586     return E_NOTIMPL;
2587 }
2588
2589 static HRESULT WINAPI AudioSessionControl_GetProcessId(
2590         IAudioSessionControl2 *iface, DWORD *pid)
2591 {
2592     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2593
2594     TRACE("(%p)->(%p)\n", This, pid);
2595
2596     if(!pid)
2597         return E_POINTER;
2598
2599     *pid = GetCurrentProcessId();
2600
2601     return S_OK;
2602 }
2603
2604 static HRESULT WINAPI AudioSessionControl_IsSystemSoundsSession(
2605         IAudioSessionControl2 *iface)
2606 {
2607     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2608
2609     TRACE("(%p)\n", This);
2610
2611     return S_FALSE;
2612 }
2613
2614 static HRESULT WINAPI AudioSessionControl_SetDuckingPreference(
2615         IAudioSessionControl2 *iface, BOOL optout)
2616 {
2617     AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
2618
2619     TRACE("(%p)->(%d)\n", This, optout);
2620
2621     return S_OK;
2622 }
2623
2624 static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl =
2625 {
2626     AudioSessionControl_QueryInterface,
2627     AudioSessionControl_AddRef,
2628     AudioSessionControl_Release,
2629     AudioSessionControl_GetState,
2630     AudioSessionControl_GetDisplayName,
2631     AudioSessionControl_SetDisplayName,
2632     AudioSessionControl_GetIconPath,
2633     AudioSessionControl_SetIconPath,
2634     AudioSessionControl_GetGroupingParam,
2635     AudioSessionControl_SetGroupingParam,
2636     AudioSessionControl_RegisterAudioSessionNotification,
2637     AudioSessionControl_UnregisterAudioSessionNotification,
2638     AudioSessionControl_GetSessionIdentifier,
2639     AudioSessionControl_GetSessionInstanceIdentifier,
2640     AudioSessionControl_GetProcessId,
2641     AudioSessionControl_IsSystemSoundsSession,
2642     AudioSessionControl_SetDuckingPreference
2643 };
2644
2645 static HRESULT WINAPI SimpleAudioVolume_QueryInterface(
2646         ISimpleAudioVolume *iface, REFIID riid, void **ppv)
2647 {
2648     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2649
2650     if(!ppv)
2651         return E_POINTER;
2652     *ppv = NULL;
2653
2654     if(IsEqualIID(riid, &IID_IUnknown) ||
2655             IsEqualIID(riid, &IID_ISimpleAudioVolume))
2656         *ppv = iface;
2657     if(*ppv){
2658         IUnknown_AddRef((IUnknown*)*ppv);
2659         return S_OK;
2660     }
2661
2662     WARN("Unknown interface %s\n", debugstr_guid(riid));
2663     return E_NOINTERFACE;
2664 }
2665
2666 static ULONG WINAPI SimpleAudioVolume_AddRef(ISimpleAudioVolume *iface)
2667 {
2668     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2669     return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
2670 }
2671
2672 static ULONG WINAPI SimpleAudioVolume_Release(ISimpleAudioVolume *iface)
2673 {
2674     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2675     return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
2676 }
2677
2678 static HRESULT WINAPI SimpleAudioVolume_SetMasterVolume(
2679         ISimpleAudioVolume *iface, float level, const GUID *context)
2680 {
2681     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2682     AudioSession *session = This->session;
2683
2684     TRACE("(%p)->(%f, %s)\n", session, level, wine_dbgstr_guid(context));
2685
2686     if(level < 0.f || level > 1.f)
2687         return E_INVALIDARG;
2688
2689     if(context)
2690         FIXME("Notifications not supported yet\n");
2691
2692     TRACE("ALSA does not support volume control\n");
2693
2694     EnterCriticalSection(&session->lock);
2695
2696     session->master_vol = level;
2697
2698     LeaveCriticalSection(&session->lock);
2699
2700     return S_OK;
2701 }
2702
2703 static HRESULT WINAPI SimpleAudioVolume_GetMasterVolume(
2704         ISimpleAudioVolume *iface, float *level)
2705 {
2706     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2707     AudioSession *session = This->session;
2708
2709     TRACE("(%p)->(%p)\n", session, level);
2710
2711     if(!level)
2712         return NULL_PTR_ERR;
2713
2714     *level = session->master_vol;
2715
2716     return S_OK;
2717 }
2718
2719 static HRESULT WINAPI SimpleAudioVolume_SetMute(ISimpleAudioVolume *iface,
2720         BOOL mute, const GUID *context)
2721 {
2722     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2723     AudioSession *session = This->session;
2724
2725     TRACE("(%p)->(%u, %p)\n", session, mute, context);
2726
2727     if(context)
2728         FIXME("Notifications not supported yet\n");
2729
2730     session->mute = mute;
2731
2732     return S_OK;
2733 }
2734
2735 static HRESULT WINAPI SimpleAudioVolume_GetMute(ISimpleAudioVolume *iface,
2736         BOOL *mute)
2737 {
2738     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
2739     AudioSession *session = This->session;
2740
2741     TRACE("(%p)->(%p)\n", session, mute);
2742
2743     if(!mute)
2744         return NULL_PTR_ERR;
2745
2746     *mute = session->mute;
2747
2748     return S_OK;
2749 }
2750
2751 static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl  =
2752 {
2753     SimpleAudioVolume_QueryInterface,
2754     SimpleAudioVolume_AddRef,
2755     SimpleAudioVolume_Release,
2756     SimpleAudioVolume_SetMasterVolume,
2757     SimpleAudioVolume_GetMasterVolume,
2758     SimpleAudioVolume_SetMute,
2759     SimpleAudioVolume_GetMute
2760 };
2761
2762 static HRESULT WINAPI AudioStreamVolume_QueryInterface(
2763         IAudioStreamVolume *iface, REFIID riid, void **ppv)
2764 {
2765     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2766
2767     if(!ppv)
2768         return E_POINTER;
2769     *ppv = NULL;
2770
2771     if(IsEqualIID(riid, &IID_IUnknown) ||
2772             IsEqualIID(riid, &IID_IAudioStreamVolume))
2773         *ppv = iface;
2774     if(*ppv){
2775         IUnknown_AddRef((IUnknown*)*ppv);
2776         return S_OK;
2777     }
2778
2779     WARN("Unknown interface %s\n", debugstr_guid(riid));
2780     return E_NOINTERFACE;
2781 }
2782
2783 static ULONG WINAPI AudioStreamVolume_AddRef(IAudioStreamVolume *iface)
2784 {
2785     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2786     return IAudioClient_AddRef(&This->IAudioClient_iface);
2787 }
2788
2789 static ULONG WINAPI AudioStreamVolume_Release(IAudioStreamVolume *iface)
2790 {
2791     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2792     return IAudioClient_Release(&This->IAudioClient_iface);
2793 }
2794
2795 static HRESULT WINAPI AudioStreamVolume_GetChannelCount(
2796         IAudioStreamVolume *iface, UINT32 *out)
2797 {
2798     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2799
2800     TRACE("(%p)->(%p)\n", This, out);
2801
2802     if(!out)
2803         return E_POINTER;
2804
2805     *out = This->fmt->nChannels;
2806
2807     return S_OK;
2808 }
2809
2810 static HRESULT WINAPI AudioStreamVolume_SetChannelVolume(
2811         IAudioStreamVolume *iface, UINT32 index, float level)
2812 {
2813     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2814
2815     TRACE("(%p)->(%d, %f)\n", This, index, level);
2816
2817     if(level < 0.f || level > 1.f)
2818         return E_INVALIDARG;
2819
2820     if(index >= This->fmt->nChannels)
2821         return E_INVALIDARG;
2822
2823     TRACE("ALSA does not support volume control\n");
2824
2825     EnterCriticalSection(&This->lock);
2826
2827     This->vols[index] = level;
2828
2829     LeaveCriticalSection(&This->lock);
2830
2831     return S_OK;
2832 }
2833
2834 static HRESULT WINAPI AudioStreamVolume_GetChannelVolume(
2835         IAudioStreamVolume *iface, UINT32 index, float *level)
2836 {
2837     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2838
2839     TRACE("(%p)->(%d, %p)\n", This, index, level);
2840
2841     if(!level)
2842         return E_POINTER;
2843
2844     if(index >= This->fmt->nChannels)
2845         return E_INVALIDARG;
2846
2847     *level = This->vols[index];
2848
2849     return S_OK;
2850 }
2851
2852 static HRESULT WINAPI AudioStreamVolume_SetAllVolumes(
2853         IAudioStreamVolume *iface, UINT32 count, const float *levels)
2854 {
2855     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2856     int i;
2857
2858     TRACE("(%p)->(%d, %p)\n", This, count, levels);
2859
2860     if(!levels)
2861         return E_POINTER;
2862
2863     if(count != This->fmt->nChannels)
2864         return E_INVALIDARG;
2865
2866     TRACE("ALSA does not support volume control\n");
2867
2868     EnterCriticalSection(&This->lock);
2869
2870     for(i = 0; i < count; ++i)
2871         This->vols[i] = levels[i];
2872
2873     LeaveCriticalSection(&This->lock);
2874
2875     return S_OK;
2876 }
2877
2878 static HRESULT WINAPI AudioStreamVolume_GetAllVolumes(
2879         IAudioStreamVolume *iface, UINT32 count, float *levels)
2880 {
2881     ACImpl *This = impl_from_IAudioStreamVolume(iface);
2882     int i;
2883
2884     TRACE("(%p)->(%d, %p)\n", This, count, levels);
2885
2886     if(!levels)
2887         return E_POINTER;
2888
2889     if(count != This->fmt->nChannels)
2890         return E_INVALIDARG;
2891
2892     EnterCriticalSection(&This->lock);
2893
2894     for(i = 0; i < count; ++i)
2895         levels[i] = This->vols[i];
2896
2897     LeaveCriticalSection(&This->lock);
2898
2899     return S_OK;
2900 }
2901
2902 static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl =
2903 {
2904     AudioStreamVolume_QueryInterface,
2905     AudioStreamVolume_AddRef,
2906     AudioStreamVolume_Release,
2907     AudioStreamVolume_GetChannelCount,
2908     AudioStreamVolume_SetChannelVolume,
2909     AudioStreamVolume_GetChannelVolume,
2910     AudioStreamVolume_SetAllVolumes,
2911     AudioStreamVolume_GetAllVolumes
2912 };
2913
2914 static HRESULT WINAPI ChannelAudioVolume_QueryInterface(
2915         IChannelAudioVolume *iface, REFIID riid, void **ppv)
2916 {
2917     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
2918
2919     if(!ppv)
2920         return E_POINTER;
2921     *ppv = NULL;
2922
2923     if(IsEqualIID(riid, &IID_IUnknown) ||
2924             IsEqualIID(riid, &IID_IChannelAudioVolume))
2925         *ppv = iface;
2926     if(*ppv){
2927         IUnknown_AddRef((IUnknown*)*ppv);
2928         return S_OK;
2929     }
2930
2931     WARN("Unknown interface %s\n", debugstr_guid(riid));
2932     return E_NOINTERFACE;
2933 }
2934
2935 static ULONG WINAPI ChannelAudioVolume_AddRef(IChannelAudioVolume *iface)
2936 {
2937     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2938     return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
2939 }
2940
2941 static ULONG WINAPI ChannelAudioVolume_Release(IChannelAudioVolume *iface)
2942 {
2943     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2944     return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
2945 }
2946
2947 static HRESULT WINAPI ChannelAudioVolume_GetChannelCount(
2948         IChannelAudioVolume *iface, UINT32 *out)
2949 {
2950     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2951     AudioSession *session = This->session;
2952
2953     TRACE("(%p)->(%p)\n", session, out);
2954
2955     if(!out)
2956         return NULL_PTR_ERR;
2957
2958     *out = session->channel_count;
2959
2960     return S_OK;
2961 }
2962
2963 static HRESULT WINAPI ChannelAudioVolume_SetChannelVolume(
2964         IChannelAudioVolume *iface, UINT32 index, float level,
2965         const GUID *context)
2966 {
2967     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2968     AudioSession *session = This->session;
2969
2970     TRACE("(%p)->(%d, %f, %s)\n", session, index, level,
2971             wine_dbgstr_guid(context));
2972
2973     if(level < 0.f || level > 1.f)
2974         return E_INVALIDARG;
2975
2976     if(index >= session->channel_count)
2977         return E_INVALIDARG;
2978
2979     if(context)
2980         FIXME("Notifications not supported yet\n");
2981
2982     TRACE("ALSA does not support volume control\n");
2983
2984     EnterCriticalSection(&session->lock);
2985
2986     session->channel_vols[index] = level;
2987
2988     LeaveCriticalSection(&session->lock);
2989
2990     return S_OK;
2991 }
2992
2993 static HRESULT WINAPI ChannelAudioVolume_GetChannelVolume(
2994         IChannelAudioVolume *iface, UINT32 index, float *level)
2995 {
2996     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
2997     AudioSession *session = This->session;
2998
2999     TRACE("(%p)->(%d, %p)\n", session, index, level);
3000
3001     if(!level)
3002         return NULL_PTR_ERR;
3003
3004     if(index >= session->channel_count)
3005         return E_INVALIDARG;
3006
3007     *level = session->channel_vols[index];
3008
3009     return S_OK;
3010 }
3011
3012 static HRESULT WINAPI ChannelAudioVolume_SetAllVolumes(
3013         IChannelAudioVolume *iface, UINT32 count, const float *levels,
3014         const GUID *context)
3015 {
3016     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
3017     AudioSession *session = This->session;
3018     int i;
3019
3020     TRACE("(%p)->(%d, %p, %s)\n", session, count, levels,
3021             wine_dbgstr_guid(context));
3022
3023     if(!levels)
3024         return NULL_PTR_ERR;
3025
3026     if(count != session->channel_count)
3027         return E_INVALIDARG;
3028
3029     if(context)
3030         FIXME("Notifications not supported yet\n");
3031
3032     TRACE("ALSA does not support volume control\n");
3033
3034     EnterCriticalSection(&session->lock);
3035
3036     for(i = 0; i < count; ++i)
3037         session->channel_vols[i] = levels[i];
3038
3039     LeaveCriticalSection(&session->lock);
3040
3041     return S_OK;
3042 }
3043
3044 static HRESULT WINAPI ChannelAudioVolume_GetAllVolumes(
3045         IChannelAudioVolume *iface, UINT32 count, float *levels)
3046 {
3047     AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
3048     AudioSession *session = This->session;
3049     int i;
3050
3051     TRACE("(%p)->(%d, %p)\n", session, count, levels);
3052
3053     if(!levels)
3054         return NULL_PTR_ERR;
3055
3056     if(count != session->channel_count)
3057         return E_INVALIDARG;
3058
3059     for(i = 0; i < count; ++i)
3060         levels[i] = session->channel_vols[i];
3061
3062     return S_OK;
3063 }
3064
3065 static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl =
3066 {
3067     ChannelAudioVolume_QueryInterface,
3068     ChannelAudioVolume_AddRef,
3069     ChannelAudioVolume_Release,
3070     ChannelAudioVolume_GetChannelCount,
3071     ChannelAudioVolume_SetChannelVolume,
3072     ChannelAudioVolume_GetChannelVolume,
3073     ChannelAudioVolume_SetAllVolumes,
3074     ChannelAudioVolume_GetAllVolumes
3075 };
3076
3077 static HRESULT WINAPI AudioSessionManager_QueryInterface(IAudioSessionManager2 *iface,
3078         REFIID riid, void **ppv)
3079 {
3080     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
3081
3082     if(!ppv)
3083         return E_POINTER;
3084     *ppv = NULL;
3085
3086     if(IsEqualIID(riid, &IID_IUnknown) ||
3087             IsEqualIID(riid, &IID_IAudioSessionManager) ||
3088             IsEqualIID(riid, &IID_IAudioSessionManager2))
3089         *ppv = iface;
3090     if(*ppv){
3091         IUnknown_AddRef((IUnknown*)*ppv);
3092         return S_OK;
3093     }
3094
3095     WARN("Unknown interface %s\n", debugstr_guid(riid));
3096     return E_NOINTERFACE;
3097 }
3098
3099 static ULONG WINAPI AudioSessionManager_AddRef(IAudioSessionManager2 *iface)
3100 {
3101     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3102     ULONG ref;
3103     ref = InterlockedIncrement(&This->ref);
3104     TRACE("(%p) Refcount now %u\n", This, ref);
3105     return ref;
3106 }
3107
3108 static ULONG WINAPI AudioSessionManager_Release(IAudioSessionManager2 *iface)
3109 {
3110     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3111     ULONG ref;
3112     ref = InterlockedDecrement(&This->ref);
3113     TRACE("(%p) Refcount now %u\n", This, ref);
3114     if(!ref)
3115         HeapFree(GetProcessHeap(), 0, This);
3116     return ref;
3117 }
3118
3119 static HRESULT WINAPI AudioSessionManager_GetAudioSessionControl(
3120         IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
3121         IAudioSessionControl **out)
3122 {
3123     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3124     AudioSession *session;
3125     AudioSessionWrapper *wrapper;
3126     HRESULT hr;
3127
3128     TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
3129             flags, out);
3130
3131     hr = get_audio_session(session_guid, This->device, 0, &session);
3132     if(FAILED(hr))
3133         return hr;
3134
3135     wrapper = AudioSessionWrapper_Create(NULL);
3136     if(!wrapper)
3137         return E_OUTOFMEMORY;
3138
3139     wrapper->session = session;
3140
3141     *out = (IAudioSessionControl*)&wrapper->IAudioSessionControl2_iface;
3142
3143     return S_OK;
3144 }
3145
3146 static HRESULT WINAPI AudioSessionManager_GetSimpleAudioVolume(
3147         IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
3148         ISimpleAudioVolume **out)
3149 {
3150     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3151     AudioSession *session;
3152     AudioSessionWrapper *wrapper;
3153     HRESULT hr;
3154
3155     TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
3156             flags, out);
3157
3158     hr = get_audio_session(session_guid, This->device, 0, &session);
3159     if(FAILED(hr))
3160         return hr;
3161
3162     wrapper = AudioSessionWrapper_Create(NULL);
3163     if(!wrapper)
3164         return E_OUTOFMEMORY;
3165
3166     wrapper->session = session;
3167
3168     *out = &wrapper->ISimpleAudioVolume_iface;
3169
3170     return S_OK;
3171 }
3172
3173 static HRESULT WINAPI AudioSessionManager_GetSessionEnumerator(
3174         IAudioSessionManager2 *iface, IAudioSessionEnumerator **out)
3175 {
3176     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3177     FIXME("(%p)->(%p) - stub\n", This, out);
3178     return E_NOTIMPL;
3179 }
3180
3181 static HRESULT WINAPI AudioSessionManager_RegisterSessionNotification(
3182         IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
3183 {
3184     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3185     FIXME("(%p)->(%p) - stub\n", This, notification);
3186     return E_NOTIMPL;
3187 }
3188
3189 static HRESULT WINAPI AudioSessionManager_UnregisterSessionNotification(
3190         IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
3191 {
3192     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3193     FIXME("(%p)->(%p) - stub\n", This, notification);
3194     return E_NOTIMPL;
3195 }
3196
3197 static HRESULT WINAPI AudioSessionManager_RegisterDuckNotification(
3198         IAudioSessionManager2 *iface, const WCHAR *session_id,
3199         IAudioVolumeDuckNotification *notification)
3200 {
3201     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3202     FIXME("(%p)->(%p) - stub\n", This, notification);
3203     return E_NOTIMPL;
3204 }
3205
3206 static HRESULT WINAPI AudioSessionManager_UnregisterDuckNotification(
3207         IAudioSessionManager2 *iface,
3208         IAudioVolumeDuckNotification *notification)
3209 {
3210     SessionMgr *This = impl_from_IAudioSessionManager2(iface);
3211     FIXME("(%p)->(%p) - stub\n", This, notification);
3212     return E_NOTIMPL;
3213 }
3214
3215 static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl =
3216 {
3217     AudioSessionManager_QueryInterface,
3218     AudioSessionManager_AddRef,
3219     AudioSessionManager_Release,
3220     AudioSessionManager_GetAudioSessionControl,
3221     AudioSessionManager_GetSimpleAudioVolume,
3222     AudioSessionManager_GetSessionEnumerator,
3223     AudioSessionManager_RegisterSessionNotification,
3224     AudioSessionManager_UnregisterSessionNotification,
3225     AudioSessionManager_RegisterDuckNotification,
3226     AudioSessionManager_UnregisterDuckNotification
3227 };
3228
3229 HRESULT WINAPI AUDDRV_GetAudioSessionManager(IMMDevice *device,
3230         IAudioSessionManager2 **out)
3231 {
3232     SessionMgr *This;
3233
3234     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SessionMgr));
3235     if(!This)
3236         return E_OUTOFMEMORY;
3237
3238     This->IAudioSessionManager2_iface.lpVtbl = &AudioSessionManager2_Vtbl;
3239     This->device = device;
3240     This->ref = 1;
3241
3242     *out = &This->IAudioSessionManager2_iface;
3243
3244     return S_OK;
3245 }