dlls/winmm/playsound.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2
   3 /*
   4  * MMSYSTEM functions
   5  *
   6  * Copyright 1993      Martin Ayotte
   7  *           1998-2002 Eric Pouech
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include <stdarg.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "mmsystem.h"
  30 #include "wingdi.h"
  31 #include "winuser.h"
  32 #include "winreg.h"
  33 #include "winemm.h"
  34 #include "winternl.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(winmm);
  39
  40 typedef struct tagWINE_PLAYSOUND
  41 {
  42     unsigned                    bLoop : 1,
  43                                 bAlloc : 1;
  44     LPCWSTR                     pszSound;
  45     HMODULE                     hMod;
  46     DWORD                       fdwSound;
  47     HANDLE                      hThread;
  48     HWAVEOUT                    hWave;
  49     struct tagWINE_PLAYSOUND*   lpNext;
  50 } WINE_PLAYSOUND;
  51
  52 static WINE_PLAYSOUND *PlaySoundList;
  53
  54 static HMMIO    get_mmioFromFile(LPCWSTR lpszName)
  55 {
  56     HMMIO       ret;
  57     WCHAR       buf[256];
  58     LPWSTR      dummy;
  59
  60     ret = mmioOpenW((LPWSTR)lpszName, NULL,
  61                     MMIO_ALLOCBUF | MMIO_READ | MMIO_DENYWRITE);
  62     if (ret != 0) return ret;
  63     if (SearchPathW(NULL, lpszName, NULL, sizeof(buf)/sizeof(buf[0]), buf, &dummy))
  64     {
  65         return mmioOpenW(buf, NULL,
  66                          MMIO_ALLOCBUF | MMIO_READ | MMIO_DENYWRITE);
  67     }
  68     return 0;
  69 }
  70
  71 static HMMIO    get_mmioFromProfile(UINT uFlags, LPCWSTR lpszName)
  72 {
  73     WCHAR       str[128];
  74     LPWSTR      ptr;
  75     HMMIO       hmmio;
  76     HKEY        hRegSnd, hRegApp, hScheme, hSnd;
  77     DWORD       err, type, count;
  78
  79     static const WCHAR  wszSounds[] = {'S','o','u','n','d','s',0};
  80     static const WCHAR  wszDefault[] = {'D','e','f','a','u','l','t',0};
  81     static const WCHAR  wszKey[] = {'A','p','p','E','v','e','n','t','s','\\',
  82                                     'S','c','h','e','m','e','s','\\',
  83                                     'A','p','p','s',0};
  84     static const WCHAR  wszDotDefault[] = {'.','D','e','f','a','u','l','t',0};
  85     static const WCHAR  wszDotCurrent[] = {'.','C','u','r','r','e','n','t',0};
  86     static const WCHAR  wszNull[] = {0};
  87
  88     TRACE("searching in SystemSound list for %s\n", debugstr_w(lpszName));
  89     GetProfileStringW(wszSounds, lpszName, wszNull, str, sizeof(str)/sizeof(str[0]));
  90     if (lstrlenW(str) == 0)
  91     {
  92         if (uFlags & SND_NODEFAULT) goto next;
  93         GetProfileStringW(wszSounds, wszDefault, wszNull, str, sizeof(str)/sizeof(str[0]));
  94         if (lstrlenW(str) == 0) goto next;
  95     }
  96     for (ptr = str; *ptr && *ptr != ','; ptr++);
  97     if (*ptr) *ptr = 0;
  98     hmmio = mmioOpenW(str, NULL, MMIO_ALLOCBUF | MMIO_READ | MMIO_DENYWRITE);
  99     if (hmmio != 0) return hmmio;
 100  next:
 101     /* we look up the registry under
 102      *      HKCU\AppEvents\Schemes\Apps\.Default
 103      *      HKCU\AppEvents\Schemes\Apps\<AppName>
 104      */
 105     if (RegOpenKeyW(HKEY_CURRENT_USER, wszKey, &hRegSnd) != 0) goto none;
 106     if (uFlags & SND_APPLICATION)
 107     {
 108         DWORD len;
 109
 110         err = 1; /* error */
 111         len = GetModuleFileNameW(0, str, sizeof(str)/sizeof(str[0]));
 112         if (len > 0 && len < sizeof(str)/sizeof(str[0]))
 113         {
 114             for (ptr = str + lstrlenW(str) - 1; ptr >= str; ptr--)
 115             {
 116                 if (*ptr == '.') *ptr = 0;
 117                 if (*ptr == '\\')
 118                 {
 119                     err = RegOpenKeyW(hRegSnd, ptr+1, &hRegApp);
 120                     break;
 121                 }
 122             }
 123         }
 124     }
 125     else
 126     {
 127         err = RegOpenKeyW(hRegSnd, wszDotDefault, &hRegApp);
 128     }
 129     RegCloseKey(hRegSnd);
 130     if (err != 0) goto none;
 131     err = RegOpenKeyW(hRegApp, lpszName, &hScheme);
 132     RegCloseKey(hRegApp);
 133     if (err != 0) goto none;
 134     /* what's the difference between .Current and .Default ? */
 135     err = RegOpenKeyW(hScheme, wszDotDefault, &hSnd);
 136     if (err != 0)
 137     {
 138         err = RegOpenKeyW(hScheme, wszDotCurrent, &hSnd);
 139         RegCloseKey(hScheme);
 140         if (err != 0)
 141             goto none;
 142     }
 143     count = sizeof(str)/sizeof(str[0]);
 144     err = RegQueryValueExW(hSnd, NULL, 0, &type, (LPBYTE)str, &count);
 145     RegCloseKey(hSnd);
 146     if (err != 0 || !*str) goto none;
 147     hmmio = mmioOpenW(str, NULL, MMIO_ALLOCBUF | MMIO_READ | MMIO_DENYWRITE);
 148     if (hmmio) return hmmio;
 149  none:
 150     WARN("can't find SystemSound=%s !\n", debugstr_w(lpszName));
 151     return 0;
 152 }
 153
 154 struct playsound_data
 155 {
 156     HANDLE      hEvent;
 157     LONG        dwEventCount;
 158 };
 159
 160 static void CALLBACK PlaySound_Callback(HWAVEOUT hwo, UINT uMsg,
 161                                         DWORD dwInstance,
 162                                         DWORD dwParam1, DWORD dwParam2)
 163 {
 164     struct playsound_data*      s = (struct playsound_data*)dwInstance;
 165
 166     switch (uMsg) {
 167     case WOM_OPEN:
 168     case WOM_CLOSE:
 169         break;
 170     case WOM_DONE:
 171         InterlockedIncrement(&s->dwEventCount);
 172         TRACE("Returning waveHdr=%x\n", dwParam1);
 173         SetEvent(s->hEvent);
 174         break;
 175     default:
 176         ERR("Unknown uMsg=%d\n", uMsg);
 177     }
 178 }
 179
 180 static void PlaySound_WaitDone(struct playsound_data* s)
 181 {
 182     for (;;) {
 183         ResetEvent(s->hEvent);
 184         if (InterlockedDecrement(&s->dwEventCount) >= 0) break;
 185         InterlockedIncrement(&s->dwEventCount);
 186
 187         WaitForSingleObject(s->hEvent, INFINITE);
 188     }
 189 }
 190
 191 static BOOL PlaySound_IsString(DWORD fdwSound, const void* psz)
 192 {
 193     /* SND_RESOURCE is 0x40004 while
 194      * SND_MEMORY is 0x00004
 195      */
 196     switch (fdwSound & (SND_RESOURCE|SND_ALIAS_ID|SND_FILENAME))
 197     {
 198     case SND_RESOURCE:  return HIWORD(psz) != 0; /* by name or by ID ? */
 199     case SND_ALIAS_ID:
 200     case SND_MEMORY:    return FALSE;
 201     case SND_ALIAS:
 202     case SND_FILENAME:
 203     case 0:             return TRUE;
 204     default:            FIXME("WTF\n"); return FALSE;
 205     }
 206 }
 207
 208 static void     PlaySound_Free(WINE_PLAYSOUND* wps)
 209 {
 210     WINE_PLAYSOUND**    p;
 211
 212     EnterCriticalSection(&WINMM_cs);
 213     for (p = &PlaySoundList; *p && *p != wps; p = &((*p)->lpNext));
 214     if (*p) *p = (*p)->lpNext;
 215     if (PlaySoundList == NULL) SetEvent(psLastEvent);
 216     LeaveCriticalSection(&WINMM_cs);
 217     if (wps->bAlloc) HeapFree(GetProcessHeap(), 0, (void*)wps->pszSound);
 218     if (wps->hThread) CloseHandle(wps->hThread);
 219     HeapFree(GetProcessHeap(), 0, wps);
 220 }
 221
 222 static WINE_PLAYSOUND*  PlaySound_Alloc(const void* pszSound, HMODULE hmod,
 223                                         DWORD fdwSound, BOOL bUnicode)
 224 {
 225     WINE_PLAYSOUND* wps;
 226
 227     wps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*wps));
 228     if (!wps) return NULL;
 229
 230     wps->hMod = hmod;
 231     wps->fdwSound = fdwSound;
 232     if (PlaySound_IsString(fdwSound, pszSound))
 233     {
 234         if (bUnicode)
 235         {
 236             if (fdwSound & SND_ASYNC)
 237             {
 238                 LPWSTR sound = HeapAlloc(GetProcessHeap(), 0,
 239                                          (lstrlenW(pszSound)+1) * sizeof(WCHAR));
 240                 if (!sound) goto oom_error;
 241                 wps->pszSound = lstrcpyW(sound, pszSound);
 242                 wps->bAlloc = TRUE;
 243             }
 244             else
 245                 wps->pszSound = pszSound;
 246         }
 247         else
 248         {
 249             UNICODE_STRING usBuffer;
 250             RtlCreateUnicodeStringFromAsciiz(&usBuffer, pszSound);
 251             wps->pszSound = usBuffer.Buffer;
 252             if (!wps->pszSound) goto oom_error;
 253             wps->bAlloc = TRUE;
 254         }
 255     }
 256     else
 257         wps->pszSound = pszSound;
 258
 259     return wps;
 260  oom_error:
 261     PlaySound_Free(wps);
 262     return NULL;
 263 }
 264
 265 static DWORD WINAPI proc_PlaySound(LPVOID arg)
 266 {
 267     WINE_PLAYSOUND*     wps = arg;
 268     BOOL                bRet = FALSE;
 269     HMMIO               hmmio = 0;
 270     MMCKINFO            ckMainRIFF;
 271     MMCKINFO            mmckInfo;
 272     LPWAVEFORMATEX      lpWaveFormat = NULL;
 273     LPWAVEHDR           waveHdr = NULL;
 274     INT                 count, bufsize, left, index;
 275     struct playsound_data       s;
 276     void*               data;
 277
 278     s.hEvent = 0;
 279
 280     TRACE("SoundName=%s !\n", debugstr_w(wps->pszSound));
 281
 282     /* if resource, grab it */
 283     if ((wps->fdwSound & SND_RESOURCE) == SND_RESOURCE) {
 284         static const WCHAR wszWave[] = {'W','A','V','E',0};
 285         HRSRC   hRes;
 286         HGLOBAL hGlob;
 287
 288         if ((hRes = FindResourceW(wps->hMod, wps->pszSound, wszWave)) == 0 ||
 289             (hGlob = LoadResource(wps->hMod, hRes)) == 0)
 290             goto errCleanUp;
 291         if ((data = LockResource(hGlob)) == NULL) {
 292             FreeResource(hGlob);
 293             goto errCleanUp;
 294         }
 295         FreeResource(hGlob);
 296     } else
 297         data = (void*)wps->pszSound;
 298
 299     /* construct an MMIO stream (either in memory, or from a file */
 300     if (wps->fdwSound & SND_MEMORY)
 301     { /* NOTE: SND_RESOURCE has the SND_MEMORY bit set */
 302         MMIOINFO        mminfo;
 303
 304         memset(&mminfo, 0, sizeof(mminfo));
 305         mminfo.fccIOProc = FOURCC_MEM;
 306         mminfo.pchBuffer = data;
 307         mminfo.cchBuffer = -1; /* FIXME: when a resource, could grab real size */
 308         TRACE("Memory sound %p\n", data);
 309         hmmio = mmioOpenW(NULL, &mminfo, MMIO_READ);
 310     }
 311     else if (wps->fdwSound & SND_ALIAS)
 312     {
 313         if ((wps->fdwSound & SND_ALIAS_ID) == SND_ALIAS_ID)
 314         {
 315             static const WCHAR  wszSystemAsterisk[] = {'S','y','s','t','e','m','A','s','t','e','r','i','s','k',0};
 316             static const WCHAR  wszSystemDefault[] = {'S','y','s','t','e','m','D','e','f','a','u','l','t',0};
 317             static const WCHAR  wszSystemExclamation[] = {'S','y','s','t','e','m','E','x','c','l','a','m','a','t','i','o','n',0};
 318             static const WCHAR  wszSystemExit[] = {'S','y','s','t','e','m','E','x','i','t',0};
 319             static const WCHAR  wszSystemHand[] = {'S','y','s','t','e','m','H','a','n','d',0};
 320             static const WCHAR  wszSystemQuestion[] = {'S','y','s','t','e','m','Q','u','e','s','t','i','o','n',0};
 321             static const WCHAR  wszSystemStart[] = {'S','y','s','t','e','m','S','t','a','r','t',0};
 322             static const WCHAR  wszSystemWelcome[] = {'S','y','s','t','e','m','W','e','l','c','o','m','e',0};
 323
 324             wps->fdwSound &= ~(SND_ALIAS_ID ^ SND_ALIAS);
 325             if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMASTERISK)
 326                 wps->pszSound = wszSystemAsterisk;
 327             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMDEFAULT)
 328                 wps->pszSound = wszSystemDefault;
 329             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMEXCLAMATION)
 330                 wps->pszSound = wszSystemExclamation;
 331             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMEXIT)
 332                 wps->pszSound = wszSystemExit;
 333             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMHAND)
 334                 wps->pszSound = wszSystemHand;
 335             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMQUESTION)
 336                 wps->pszSound = wszSystemQuestion;
 337             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMSTART)
 338                 wps->pszSound = wszSystemStart;
 339             else if (wps->pszSound == (LPCWSTR)SND_ALIAS_SYSTEMWELCOME)
 340                 wps->pszSound = wszSystemWelcome;
 341             else goto errCleanUp;
 342         }
 343         hmmio = get_mmioFromProfile(wps->fdwSound, wps->pszSound);
 344     }
 345     else if (wps->fdwSound & SND_FILENAME)
 346     {
 347         hmmio = get_mmioFromFile(wps->pszSound);
 348     }
 349     else
 350     {
 351         if ((hmmio = get_mmioFromProfile(wps->fdwSound | SND_NODEFAULT, wps->pszSound)) == 0)
 352         {
 353             if ((hmmio = get_mmioFromFile(wps->pszSound)) == 0)
 354             {
 355                 hmmio = get_mmioFromProfile(wps->fdwSound, wps->pszSound);
 356             }
 357         }
 358     }
 359     if (hmmio == 0) goto errCleanUp;
 360
 361     if (mmioDescend(hmmio, &ckMainRIFF, NULL, 0))
 362         goto errCleanUp;
 363
 364     TRACE("ParentChunk ckid=%.4s fccType=%.4s cksize=%08X\n",
 365           (LPSTR)&ckMainRIFF.ckid, (LPSTR)&ckMainRIFF.fccType, ckMainRIFF.cksize);
 366
 367     if ((ckMainRIFF.ckid != FOURCC_RIFF) ||
 368         (ckMainRIFF.fccType != mmioFOURCC('W', 'A', 'V', 'E')))
 369         goto errCleanUp;
 370
 371     mmckInfo.ckid = mmioFOURCC('f', 'm', 't', ' ');
 372     if (mmioDescend(hmmio, &mmckInfo, &ckMainRIFF, MMIO_FINDCHUNK))
 373         goto errCleanUp;
 374
 375     TRACE("Chunk Found ckid=%.4s fccType=%08x cksize=%08X\n",
 376           (LPSTR)&mmckInfo.ckid, mmckInfo.fccType, mmckInfo.cksize);
 377
 378     lpWaveFormat = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
 379     if (mmioRead(hmmio, (HPSTR)lpWaveFormat, mmckInfo.cksize) < sizeof(WAVEFORMAT))
 380         goto errCleanUp;
 381
 382     TRACE("wFormatTag=%04X !\n",        lpWaveFormat->wFormatTag);
 383     TRACE("nChannels=%d\n",             lpWaveFormat->nChannels);
 384     TRACE("nSamplesPerSec=%d\n",        lpWaveFormat->nSamplesPerSec);
 385     TRACE("nAvgBytesPerSec=%d\n",       lpWaveFormat->nAvgBytesPerSec);
 386     TRACE("nBlockAlign=%d\n",           lpWaveFormat->nBlockAlign);
 387     TRACE("wBitsPerSample=%u !\n",      lpWaveFormat->wBitsPerSample);
 388
 389     /* move to end of 'fmt ' chunk */
 390     mmioAscend(hmmio, &mmckInfo, 0);
 391
 392     mmckInfo.ckid = mmioFOURCC('d', 'a', 't', 'a');
 393     if (mmioDescend(hmmio, &mmckInfo, &ckMainRIFF, MMIO_FINDCHUNK))
 394         goto errCleanUp;
 395
 396     TRACE("Chunk Found ckid=%.4s fccType=%08x cksize=%08X\n",
 397           (LPSTR)&mmckInfo.ckid, mmckInfo.fccType, mmckInfo.cksize);
 398
 399     s.hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 400
 401     if (waveOutOpen(&wps->hWave, WAVE_MAPPER, lpWaveFormat, (DWORD)PlaySound_Callback,
 402                     (DWORD)&s, CALLBACK_FUNCTION) != MMSYSERR_NOERROR)
 403         goto errCleanUp;
 404
 405     /* make it so that 3 buffers per second are needed */
 406     bufsize = (((lpWaveFormat->nAvgBytesPerSec / 3) - 1) / lpWaveFormat->nBlockAlign + 1) *
 407         lpWaveFormat->nBlockAlign;
 408     waveHdr = HeapAlloc(GetProcessHeap(), 0, 2 * sizeof(WAVEHDR) + 2 * bufsize);
 409     waveHdr[0].lpData = (char*)waveHdr + 2 * sizeof(WAVEHDR);
 410     waveHdr[1].lpData = (char*)waveHdr + 2 * sizeof(WAVEHDR) + bufsize;
 411     waveHdr[0].dwUser = waveHdr[1].dwUser = 0L;
 412     waveHdr[0].dwLoops = waveHdr[1].dwLoops = 0L;
 413     waveHdr[0].dwFlags = waveHdr[1].dwFlags = 0L;
 414     waveHdr[0].dwBufferLength = waveHdr[1].dwBufferLength = bufsize;
 415     if (waveOutPrepareHeader(wps->hWave, &waveHdr[0], sizeof(WAVEHDR)) ||
 416         waveOutPrepareHeader(wps->hWave, &waveHdr[1], sizeof(WAVEHDR))) {
 417         goto errCleanUp;
 418     }
 419
 420     s.dwEventCount = 1L; /* for first buffer */
 421     index = 0;
 422
 423     do {
 424         left = mmckInfo.cksize;
 425
 426         mmioSeek(hmmio, mmckInfo.dwDataOffset, SEEK_SET);
 427         while (left)
 428         {
 429             if (WaitForSingleObject(psStopEvent, 0) == WAIT_OBJECT_0)
 430             {
 431                 wps->bLoop = FALSE;
 432                 break;
 433             }
 434             count = mmioRead(hmmio, waveHdr[index].lpData, min(bufsize, left));
 435             if (count < 1) break;
 436             left -= count;
 437             waveHdr[index].dwBufferLength = count;
 438             waveHdr[index].dwFlags &= ~WHDR_DONE;
 439             if (waveOutWrite(wps->hWave, &waveHdr[index], sizeof(WAVEHDR)) == MMSYSERR_NOERROR) {
 440                 index ^= 1;
 441                 PlaySound_WaitDone(&s);
 442             }
 443             else FIXME("Couldn't play header\n");
 444         }
 445         bRet = TRUE;
 446     } while (wps->bLoop);
 447
 448     PlaySound_WaitDone(&s); /* for last buffer */
 449     waveOutReset(wps->hWave);
 450
 451     waveOutUnprepareHeader(wps->hWave, &waveHdr[0], sizeof(WAVEHDR));
 452     waveOutUnprepareHeader(wps->hWave, &waveHdr[1], sizeof(WAVEHDR));
 453
 454 errCleanUp:
 455     TRACE("Done playing=%s => %s!\n", debugstr_w(wps->pszSound), bRet ? "ok" : "ko");
 456     CloseHandle(s.hEvent);
 457     HeapFree(GetProcessHeap(), 0, waveHdr);
 458     HeapFree(GetProcessHeap(), 0, lpWaveFormat);
 459     if (wps->hWave)     while (waveOutClose(wps->hWave) == WAVERR_STILLPLAYING) Sleep(100);
 460     if (hmmio)          mmioClose(hmmio, 0);
 461
 462     PlaySound_Free(wps);
 463
 464     return bRet;
 465 }
 466
 467 static BOOL MULTIMEDIA_PlaySound(const void* pszSound, HMODULE hmod, DWORD fdwSound, BOOL bUnicode)
 468 {
 469     WINE_PLAYSOUND*     wps = NULL;
 470
 471     TRACE("pszSound='%p' hmod=%p fdwSound=%08X\n",
 472           pszSound, hmod, fdwSound);
 473
 474     /* FIXME? I see no difference between SND_NOWAIT and SND_NOSTOP !
 475      * there could be one if several sounds can be played at once...
 476      */
 477     if ((fdwSound & (SND_NOWAIT | SND_NOSTOP)) && PlaySoundList != NULL)
 478         return FALSE;
 479
 480     /* alloc internal structure, if we need to play something */
 481     if (pszSound && !(fdwSound & SND_PURGE))
 482     {
 483         if (!(wps = PlaySound_Alloc(pszSound, hmod, fdwSound, bUnicode)))
 484             return FALSE;
 485     }
 486
 487     EnterCriticalSection(&WINMM_cs);
 488     /* since several threads can enter PlaySound in parallel, we're not
 489      * sure, at this point, that another thread didn't start a new playsound
 490      */
 491     while (PlaySoundList != NULL)
 492     {
 493         ResetEvent(psLastEvent);
 494         /* FIXME: doc says we have to stop all instances of pszSound if it's non
 495          * NULL... as of today, we stop all playing instances */
 496         SetEvent(psStopEvent);
 497
 498         waveOutReset(PlaySoundList->hWave);
 499         LeaveCriticalSection(&WINMM_cs);
 500         WaitForSingleObject(psLastEvent, INFINITE);
 501         EnterCriticalSection(&WINMM_cs);
 502
 503         ResetEvent(psStopEvent);
 504     }
 505
 506     if (wps) wps->lpNext = PlaySoundList;
 507     PlaySoundList = wps;
 508     LeaveCriticalSection(&WINMM_cs);
 509
 510     if (!pszSound || (fdwSound & SND_PURGE)) return TRUE;
 511
 512     if (fdwSound & SND_ASYNC)
 513     {
 514         DWORD       id;
 515         HANDLE      handle;
 516         wps->bLoop = (fdwSound & SND_LOOP) ? TRUE : FALSE;
 517         if ((handle = CreateThread(NULL, 0, proc_PlaySound, wps, 0, &id)) != 0) {
 518             wps->hThread = handle;
 519             SetThreadPriority(handle, THREAD_PRIORITY_TIME_CRITICAL);
 520             return TRUE;
 521         }
 522     }
 523     else return proc_PlaySound(wps);
 524
 525     /* error cases */
 526     PlaySound_Free(wps);
 527     return FALSE;
 528 }
 529
 530 /**************************************************************************
 531  *                              PlaySoundA              [WINMM.@]
 532  */
 533 BOOL WINAPI PlaySoundA(LPCSTR pszSoundA, HMODULE hmod, DWORD fdwSound)
 534 {
 535     return MULTIMEDIA_PlaySound(pszSoundA, hmod, fdwSound, FALSE);
 536 }
 537
 538 /**************************************************************************
 539  *                              PlaySoundW              [WINMM.@]
 540  */
 541 BOOL WINAPI PlaySoundW(LPCWSTR pszSoundW, HMODULE hmod, DWORD fdwSound)
 542 {
 543     return MULTIMEDIA_PlaySound(pszSoundW, hmod, fdwSound, TRUE);
 544 }
 545
 546 /**************************************************************************
 547  *                              sndPlaySoundA           [WINMM.@]
 548  */
 549 BOOL WINAPI sndPlaySoundA(LPCSTR pszSoundA, UINT uFlags)
 550 {
 551     uFlags &= SND_ASYNC|SND_LOOP|SND_MEMORY|SND_NODEFAULT|SND_NOSTOP|SND_SYNC;
 552     return MULTIMEDIA_PlaySound(pszSoundA, 0, uFlags, FALSE);
 553 }
 554
 555 /**************************************************************************
 556  *                              sndPlaySoundW           [WINMM.@]
 557  */
 558 BOOL WINAPI sndPlaySoundW(LPCWSTR pszSound, UINT uFlags)
 559 {
 560     uFlags &= SND_ASYNC|SND_LOOP|SND_MEMORY|SND_NODEFAULT|SND_NOSTOP|SND_SYNC;
 561     return MULTIMEDIA_PlaySound(pszSound, 0, uFlags, TRUE);
 562 }
 563
 564 /**************************************************************************
 565  *                              mmsystemGetVersion      [WINMM.@]
 566  */
 567 UINT WINAPI mmsystemGetVersion(void)
 568 {
 569     TRACE("3.10 (Win95?)\n");
 570     return 0x030a;
 571 }