git.oblomov.eu Git - wine/blob - dlls/winealsa.drv/waveout.c

   1 /*
   2  * Sample Wine Driver for Advanced Linux Sound System (ALSA)
   3  *      Based on version <final> of the ALSA API
   4  *
   5  * Copyright    2002 Eric Pouech
   6  *              2002 Marco Pietrobono
   7  *              2003 Christian Costa : WaveIn support
   8  *              2006-2007 Maarten Lankhorst
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 /*======================================================================*
  26  *                  Low level WAVE OUT implementation                   *
  27  *======================================================================*/
  28
  29 #include "config.h"
  30 #include "wine/port.h"
  31
  32 #include <stdlib.h>
  33 #include <stdarg.h>
  34 #include <stdio.h>
  35 #include <string.h>
  36 #ifdef HAVE_UNISTD_H
  37 # include <unistd.h>
  38 #endif
  39 #include <errno.h>
  40 #include <limits.h>
  41 #include <fcntl.h>
  42 #ifdef HAVE_SYS_IOCTL_H
  43 # include <sys/ioctl.h>
  44 #endif
  45 #ifdef HAVE_SYS_MMAN_H
  46 # include <sys/mman.h>
  47 #endif
  48 #include "windef.h"
  49 #include "winbase.h"
  50 #include "wingdi.h"
  51 #include "winuser.h"
  52 #include "winnls.h"
  53 #include "mmddk.h"
  54
  55 #include "alsa.h"
  56
  57 #include "wine/library.h"
  58 #include "wine/unicode.h"
  59 #include "wine/debug.h"
  60
  61 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  62
  63 #ifdef HAVE_ALSA
  64
  65 WINE_WAVEDEV    *WOutDev;
  66 DWORD            ALSA_WodNumMallocedDevs;
  67 DWORD            ALSA_WodNumDevs;
  68
  69 /**************************************************************************
  70  *                      wodNotifyClient                 [internal]
  71  */
  72 static DWORD wodNotifyClient(WINE_WAVEDEV* wwo, WORD wMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2)
  73 {
  74     TRACE("wMsg = 0x%04x dwParm1 = %lx dwParam2 = %lx\n", wMsg, dwParam1, dwParam2);
  75
  76     switch (wMsg) {
  77     case WOM_OPEN:
  78     case WOM_CLOSE:
  79     case WOM_DONE:
  80         if (wwo->wFlags != DCB_NULL &&
  81             !DriverCallback(wwo->waveDesc.dwCallback, wwo->wFlags, (HDRVR)wwo->waveDesc.hWave,
  82                             wMsg, wwo->waveDesc.dwInstance, dwParam1, dwParam2)) {
  83             WARN("can't notify client !\n");
  84             return MMSYSERR_ERROR;
  85         }
  86         break;
  87     default:
  88         FIXME("Unknown callback message %u\n", wMsg);
  89         return MMSYSERR_INVALPARAM;
  90     }
  91     return MMSYSERR_NOERROR;
  92 }
  93
  94 /**************************************************************************
  95  *                              wodUpdatePlayedTotal    [internal]
  96  *
  97  */
  98 static BOOL wodUpdatePlayedTotal(WINE_WAVEDEV* wwo, snd_pcm_status_t* ps)
  99 {
 100     snd_pcm_sframes_t delay;
 101     snd_pcm_sframes_t avail;
 102     snd_pcm_uframes_t buf_size = 0;
 103     snd_pcm_state_t state;
 104
 105     state = snd_pcm_state(wwo->pcm);
 106     avail = snd_pcm_avail_update(wwo->pcm);
 107     snd_pcm_hw_params_get_buffer_size(wwo->hw_params, &buf_size);
 108     delay = buf_size - avail;
 109
 110     if (state != SND_PCM_STATE_RUNNING && state != SND_PCM_STATE_PREPARED)
 111     {
 112         WARN("Unexpected state (%d) while updating Total Played, resetting\n", state);
 113         delay=0;
 114     }
 115
 116     /* A delay < 0 indicates an underrun; for our purposes that's 0.  */
 117     if (delay < 0)
 118     {
 119         WARN("Unexpected delay (%ld) while updating Total Played, resetting\n", delay);
 120         delay=0;
 121     }
 122
 123     InterlockedExchange((LONG*)&wwo->dwPlayedTotal, wwo->dwWrittenTotal - snd_pcm_frames_to_bytes(wwo->pcm, delay));
 124     return TRUE;
 125 }
 126
 127 /**************************************************************************
 128  *                              wodPlayer_BeginWaveHdr          [internal]
 129  *
 130  * Makes the specified lpWaveHdr the currently playing wave header.
 131  * If the specified wave header is a begin loop and we're not already in
 132  * a loop, setup the loop.
 133  */
 134 static void wodPlayer_BeginWaveHdr(WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
 135 {
 136     wwo->lpPlayPtr = lpWaveHdr;
 137
 138     if (!lpWaveHdr) return;
 139
 140     if (lpWaveHdr->dwFlags & WHDR_BEGINLOOP) {
 141         if (wwo->lpLoopPtr) {
 142             WARN("Already in a loop. Discarding loop on this header (%p)\n", lpWaveHdr);
 143         } else {
 144             TRACE("Starting loop (%dx) with %p\n", lpWaveHdr->dwLoops, lpWaveHdr);
 145             wwo->lpLoopPtr = lpWaveHdr;
 146             /* Windows does not touch WAVEHDR.dwLoops,
 147              * so we need to make an internal copy */
 148             wwo->dwLoops = lpWaveHdr->dwLoops;
 149         }
 150     }
 151     wwo->dwPartialOffset = 0;
 152 }
 153
 154 /**************************************************************************
 155  *                              wodPlayer_PlayPtrNext           [internal]
 156  *
 157  * Advance the play pointer to the next waveheader, looping if required.
 158  */
 159 static LPWAVEHDR wodPlayer_PlayPtrNext(WINE_WAVEDEV* wwo)
 160 {
 161     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
 162
 163     wwo->dwPartialOffset = 0;
 164     if ((lpWaveHdr->dwFlags & WHDR_ENDLOOP) && wwo->lpLoopPtr) {
 165         /* We're at the end of a loop, loop if required */
 166         if (--wwo->dwLoops > 0) {
 167             wwo->lpPlayPtr = wwo->lpLoopPtr;
 168         } else {
 169             /* Handle overlapping loops correctly */
 170             if (wwo->lpLoopPtr != lpWaveHdr && (lpWaveHdr->dwFlags & WHDR_BEGINLOOP)) {
 171                 FIXME("Correctly handled case ? (ending loop buffer also starts a new loop)\n");
 172                 /* shall we consider the END flag for the closing loop or for
 173                  * the opening one or for both ???
 174                  * code assumes for closing loop only
 175                  */
 176             } else {
 177                 lpWaveHdr = lpWaveHdr->lpNext;
 178             }
 179             wwo->lpLoopPtr = NULL;
 180             wodPlayer_BeginWaveHdr(wwo, lpWaveHdr);
 181         }
 182     } else {
 183         /* We're not in a loop.  Advance to the next wave header */
 184         wodPlayer_BeginWaveHdr(wwo, lpWaveHdr = lpWaveHdr->lpNext);
 185     }
 186
 187     return lpWaveHdr;
 188 }
 189
 190 /**************************************************************************
 191  *                           wodPlayer_DSPWait                  [internal]
 192  * Returns the number of milliseconds to wait for the DSP buffer to play a
 193  * period
 194  */
 195 static DWORD wodPlayer_DSPWait(const WINE_WAVEDEV *wwo)
 196 {
 197     /* time for one period to be played */
 198     unsigned int val=0;
 199     int dir=0;
 200     int err=0;
 201     err = snd_pcm_hw_params_get_period_time(wwo->hw_params, &val, &dir);
 202     return val / 1000;
 203 }
 204
 205 /**************************************************************************
 206  *                           wodPlayer_NotifyWait               [internal]
 207  * Returns the number of milliseconds to wait before attempting to notify
 208  * completion of the specified wavehdr.
 209  * This is based on the number of bytes remaining to be written in the
 210  * wave.
 211  */
 212 static DWORD wodPlayer_NotifyWait(const WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
 213 {
 214     DWORD dwMillis;
 215
 216     if (lpWaveHdr->reserved < wwo->dwPlayedTotal) {
 217         dwMillis = 1;
 218     } else {
 219         dwMillis = (lpWaveHdr->reserved - wwo->dwPlayedTotal) * 1000 / wwo->format.Format.nAvgBytesPerSec;
 220         if (!dwMillis) dwMillis = 1;
 221     }
 222
 223     return dwMillis;
 224 }
 225
 226
 227 /**************************************************************************
 228  *                           wodPlayer_WriteMaxFrags            [internal]
 229  * Writes the maximum number of frames possible to the DSP and returns
 230  * the number of frames written.
 231  */
 232 static int wodPlayer_WriteMaxFrags(WINE_WAVEDEV* wwo, DWORD* frames)
 233 {
 234     /* Only attempt to write to free frames */
 235     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
 236     DWORD dwLength = snd_pcm_bytes_to_frames(wwo->pcm, lpWaveHdr->dwBufferLength - wwo->dwPartialOffset);
 237     int toWrite = min(dwLength, *frames);
 238     int written;
 239
 240     TRACE("Writing wavehdr %p.%u[%u]\n", lpWaveHdr, wwo->dwPartialOffset, lpWaveHdr->dwBufferLength);
 241
 242     if (toWrite > 0) {
 243         written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
 244         if ( written < 0) {
 245             /* XRUN occurred. let's try to recover */
 246             ALSA_XRUNRecovery(wwo, written);
 247             written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
 248         }
 249         if (written <= 0) {
 250             /* still in error */
 251             ERR("Error in writing wavehdr. Reason: %s\n", snd_strerror(written));
 252             return written;
 253         }
 254     } else
 255         written = 0;
 256
 257     wwo->dwPartialOffset += snd_pcm_frames_to_bytes(wwo->pcm, written);
 258     if ( wwo->dwPartialOffset >= lpWaveHdr->dwBufferLength) {
 259         /* this will be used to check if the given wave header has been fully played or not... */
 260         wwo->dwPartialOffset = lpWaveHdr->dwBufferLength;
 261         /* If we wrote all current wavehdr, skip to the next one */
 262         wodPlayer_PlayPtrNext(wwo);
 263     }
 264     *frames -= written;
 265     wwo->dwWrittenTotal += snd_pcm_frames_to_bytes(wwo->pcm, written);
 266     TRACE("dwWrittenTotal=%u\n", wwo->dwWrittenTotal);
 267
 268     return written;
 269 }
 270
 271
 272 /**************************************************************************
 273  *                              wodPlayer_NotifyCompletions     [internal]
 274  *
 275  * Notifies and remove from queue all wavehdrs which have been played to
 276  * the speaker (ie. they have cleared the ALSA buffer).  If force is true,
 277  * we notify all wavehdrs and remove them all from the queue even if they
 278  * are unplayed or part of a loop.
 279  */
 280 static DWORD wodPlayer_NotifyCompletions(WINE_WAVEDEV* wwo, BOOL force)
 281 {
 282     LPWAVEHDR           lpWaveHdr;
 283
 284     /* Start from lpQueuePtr and keep notifying until:
 285      * - we hit an unwritten wavehdr
 286      * - we hit the beginning of a running loop
 287      * - we hit a wavehdr which hasn't finished playing
 288      */
 289     for (;;)
 290     {
 291         lpWaveHdr = wwo->lpQueuePtr;
 292         if (!lpWaveHdr) {TRACE("Empty queue\n"); break;}
 293         if (!force)
 294         {
 295             snd_pcm_uframes_t frames;
 296             snd_pcm_hw_params_get_period_size(wwo->hw_params, &frames, NULL);
 297
 298             if (lpWaveHdr == wwo->lpPlayPtr) {TRACE("play %p\n", lpWaveHdr); break;}
 299             if (lpWaveHdr == wwo->lpLoopPtr) {TRACE("loop %p\n", lpWaveHdr); break;}
 300             if (lpWaveHdr->reserved > wwo->dwPlayedTotal + frames) {TRACE("still playing %p (%lu/%u)\n", lpWaveHdr, lpWaveHdr->reserved, wwo->dwPlayedTotal);break;}
 301         }
 302         wwo->dwPlayedTotal += lpWaveHdr->reserved - wwo->dwPlayedTotal;
 303         wwo->lpQueuePtr = lpWaveHdr->lpNext;
 304
 305         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 306         lpWaveHdr->dwFlags |= WHDR_DONE;
 307
 308         wodNotifyClient(wwo, WOM_DONE, (DWORD_PTR)lpWaveHdr, 0);
 309     }
 310     return  (lpWaveHdr && lpWaveHdr != wwo->lpPlayPtr && lpWaveHdr != wwo->lpLoopPtr) ?
 311         wodPlayer_NotifyWait(wwo, lpWaveHdr) : INFINITE;
 312 }
 313
 314
 315 /**************************************************************************
 316  *                              wodPlayer_Reset                 [internal]
 317  *
 318  * wodPlayer helper. Resets current output stream.
 319  */
 320 static  void    wodPlayer_Reset(WINE_WAVEDEV* wwo, BOOL reset)
 321 {
 322     int                         err;
 323     TRACE("(%p)\n", wwo);
 324
 325     wodUpdatePlayedTotal(wwo, NULL);
 326     /* updates current notify list */
 327     wodPlayer_NotifyCompletions(wwo, FALSE);
 328
 329     if ( (err = snd_pcm_drop(wwo->pcm)) < 0) {
 330         FIXME("flush: %s\n", snd_strerror(err));
 331         wwo->hThread = 0;
 332         wwo->state = WINE_WS_STOPPED;
 333         ExitThread(-1);
 334     }
 335     if ( (err = snd_pcm_prepare(wwo->pcm)) < 0 )
 336         ERR("pcm prepare failed: %s\n", snd_strerror(err));
 337
 338     if (reset) {
 339         enum win_wm_message     msg;
 340         DWORD_PTR               param;
 341         HANDLE                  ev;
 342
 343         /* remove any buffer */
 344         wodPlayer_NotifyCompletions(wwo, TRUE);
 345
 346         wwo->lpPlayPtr = wwo->lpQueuePtr = wwo->lpLoopPtr = NULL;
 347         wwo->state = WINE_WS_STOPPED;
 348         wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
 349         /* Clear partial wavehdr */
 350         wwo->dwPartialOffset = 0;
 351
 352         /* remove any existing message in the ring */
 353         EnterCriticalSection(&wwo->msgRing.msg_crst);
 354         /* return all pending headers in queue */
 355         while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev))
 356         {
 357             if (msg != WINE_WM_HEADER)
 358             {
 359                 FIXME("shouldn't have headers left\n");
 360                 SetEvent(ev);
 361                 continue;
 362             }
 363             ((LPWAVEHDR)param)->dwFlags &= ~WHDR_INQUEUE;
 364             ((LPWAVEHDR)param)->dwFlags |= WHDR_DONE;
 365
 366                 wodNotifyClient(wwo, WOM_DONE, param, 0);
 367         }
 368         ALSA_ResetRingMessage(&wwo->msgRing);
 369         LeaveCriticalSection(&wwo->msgRing.msg_crst);
 370     } else {
 371         if (wwo->lpLoopPtr) {
 372             /* complicated case, not handled yet (could imply modifying the loop counter */
 373             FIXME("Pausing while in loop isn't correctly handled yet, expect strange results\n");
 374             wwo->lpPlayPtr = wwo->lpLoopPtr;
 375             wwo->dwPartialOffset = 0;
 376             wwo->dwWrittenTotal = wwo->dwPlayedTotal; /* this is wrong !!! */
 377         } else {
 378             LPWAVEHDR   ptr;
 379             DWORD       sz = wwo->dwPartialOffset;
 380
 381             /* reset all the data as if we had written only up to lpPlayedTotal bytes */
 382             /* compute the max size playable from lpQueuePtr */
 383             for (ptr = wwo->lpQueuePtr; ptr != wwo->lpPlayPtr; ptr = ptr->lpNext) {
 384                 sz += ptr->dwBufferLength;
 385             }
 386             /* because the reset lpPlayPtr will be lpQueuePtr */
 387             if (wwo->dwWrittenTotal > wwo->dwPlayedTotal + sz) ERR("grin\n");
 388             wwo->dwPartialOffset = sz - (wwo->dwWrittenTotal - wwo->dwPlayedTotal);
 389             wwo->dwWrittenTotal = wwo->dwPlayedTotal;
 390             wwo->lpPlayPtr = wwo->lpQueuePtr;
 391         }
 392         wwo->state = WINE_WS_PAUSED;
 393     }
 394 }
 395
 396 /**************************************************************************
 397  *                    wodPlayer_ProcessMessages                 [internal]
 398  */
 399 static void wodPlayer_ProcessMessages(WINE_WAVEDEV* wwo)
 400 {
 401     LPWAVEHDR           lpWaveHdr;
 402     enum win_wm_message msg;
 403     DWORD_PTR           param;
 404     HANDLE              ev;
 405     int                 err;
 406
 407     while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev)) {
 408      TRACE("Received %s %lx\n", ALSA_getCmdString(msg), param);
 409
 410         switch (msg) {
 411         case WINE_WM_PAUSING:
 412             if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_RUNNING )
 413              {
 414                 if ( snd_pcm_hw_params_can_pause(wwo->hw_params) )
 415                 {
 416                     err = snd_pcm_pause(wwo->pcm, 1);
 417                     if ( err < 0 )
 418                         ERR("pcm_pause failed: %s\n", snd_strerror(err));
 419                     wwo->state = WINE_WS_PAUSED;
 420                 }
 421                 else
 422                 {
 423                     wodPlayer_Reset(wwo,FALSE);
 424                 }
 425              }
 426             SetEvent(ev);
 427             break;
 428         case WINE_WM_RESTARTING:
 429             if (wwo->state == WINE_WS_PAUSED)
 430             {
 431                 if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_PAUSED )
 432                  {
 433                     err = snd_pcm_pause(wwo->pcm, 0);
 434                     if ( err < 0 )
 435                         ERR("pcm_pause failed: %s\n", snd_strerror(err));
 436                  }
 437                 wwo->state = WINE_WS_PLAYING;
 438             }
 439             SetEvent(ev);
 440             break;
 441         case WINE_WM_HEADER:
 442             lpWaveHdr = (LPWAVEHDR)param;
 443
 444             /* insert buffer at the end of queue */
 445             {
 446                 LPWAVEHDR*      wh;
 447                 for (wh = &(wwo->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 448                 *wh = lpWaveHdr;
 449             }
 450             if (!wwo->lpPlayPtr)
 451                 wodPlayer_BeginWaveHdr(wwo,lpWaveHdr);
 452             if (wwo->state == WINE_WS_STOPPED)
 453                 wwo->state = WINE_WS_PLAYING;
 454             break;
 455         case WINE_WM_RESETTING:
 456             wodPlayer_Reset(wwo,TRUE);
 457             SetEvent(ev);
 458             break;
 459         case WINE_WM_BREAKLOOP:
 460             if (wwo->state == WINE_WS_PLAYING && wwo->lpLoopPtr != NULL) {
 461                 /* ensure exit at end of current loop */
 462                 wwo->dwLoops = 1;
 463             }
 464             SetEvent(ev);
 465             break;
 466         case WINE_WM_CLOSING:
 467             /* sanity check: this should not happen since the device must have been reset before */
 468             if (wwo->lpQueuePtr || wwo->lpPlayPtr) ERR("out of sync\n");
 469             wwo->hThread = 0;
 470             wwo->state = WINE_WS_CLOSED;
 471             SetEvent(ev);
 472             ExitThread(0);
 473             /* shouldn't go here */
 474         default:
 475             FIXME("unknown message %d\n", msg);
 476             break;
 477         }
 478     }
 479 }
 480
 481 /**************************************************************************
 482  *                           wodPlayer_FeedDSP                  [internal]
 483  * Feed as much sound data as we can into the DSP and return the number of
 484  * milliseconds before it will be necessary to feed the DSP again.
 485  */
 486 static DWORD wodPlayer_FeedDSP(WINE_WAVEDEV* wwo)
 487 {
 488     DWORD               availInQ;
 489
 490     wodUpdatePlayedTotal(wwo, NULL);
 491     availInQ = snd_pcm_avail_update(wwo->pcm);
 492
 493     /* no more room... no need to try to feed */
 494     if (availInQ > 0) {
 495         /* Feed from partial wavehdr */
 496         if (wwo->lpPlayPtr && wwo->dwPartialOffset != 0) {
 497             wodPlayer_WriteMaxFrags(wwo, &availInQ);
 498         }
 499
 500         /* Feed wavehdrs until we run out of wavehdrs or DSP space */
 501         if (wwo->dwPartialOffset == 0 && wwo->lpPlayPtr) {
 502             do {
 503                 TRACE("Setting time to elapse for %p to %u\n",
 504                       wwo->lpPlayPtr, wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength);
 505                 /* note the value that dwPlayedTotal will return when this wave finishes playing */
 506                 wwo->lpPlayPtr->reserved = wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength;
 507             } while (wodPlayer_WriteMaxFrags(wwo, &availInQ) && wwo->lpPlayPtr && availInQ > 0);
 508         }
 509     }
 510
 511     return wodPlayer_DSPWait(wwo);
 512 }
 513
 514 /**************************************************************************
 515  *                              wodPlayer                       [internal]
 516  */
 517 static  DWORD   CALLBACK        wodPlayer(LPVOID pmt)
 518 {
 519     WORD          uDevID = (DWORD_PTR)pmt;
 520     WINE_WAVEDEV* wwo = &WOutDev[uDevID];
 521     DWORD         dwNextFeedTime = INFINITE;   /* Time before DSP needs feeding */
 522     DWORD         dwNextNotifyTime = INFINITE; /* Time before next wave completion */
 523     DWORD         dwSleepTime;
 524
 525     wwo->state = WINE_WS_STOPPED;
 526     SetEvent(wwo->hStartUpEvent);
 527
 528     for (;;) {
 529         /** Wait for the shortest time before an action is required.  If there
 530          *  are no pending actions, wait forever for a command.
 531          */
 532         dwSleepTime = min(dwNextFeedTime, dwNextNotifyTime);
 533         TRACE("waiting %ums (%u,%u)\n", dwSleepTime, dwNextFeedTime, dwNextNotifyTime);
 534         ALSA_WaitRingMessage(&wwo->msgRing, dwSleepTime);
 535         wodPlayer_ProcessMessages(wwo);
 536         if (wwo->state == WINE_WS_PLAYING) {
 537             dwNextFeedTime = wodPlayer_FeedDSP(wwo);
 538             dwNextNotifyTime = wodPlayer_NotifyCompletions(wwo, FALSE);
 539             if (dwNextFeedTime == INFINITE) {
 540                 /* FeedDSP ran out of data, but before giving up, */
 541                 /* check that a notification didn't give us more */
 542                 wodPlayer_ProcessMessages(wwo);
 543                 if (wwo->lpPlayPtr) {
 544                     TRACE("recovering\n");
 545                     dwNextFeedTime = wodPlayer_FeedDSP(wwo);
 546                 }
 547             }
 548         } else {
 549             dwNextFeedTime = dwNextNotifyTime = INFINITE;
 550         }
 551     }
 552     return 0;
 553 }
 554
 555 /**************************************************************************
 556  *                      wodGetDevCaps                           [internal]
 557  */
 558 static DWORD wodGetDevCaps(WORD wDevID, LPWAVEOUTCAPSW lpCaps, DWORD dwSize)
 559 {
 560     TRACE("(%u, %p, %u);\n", wDevID, lpCaps, dwSize);
 561
 562     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
 563
 564     if (wDevID >= ALSA_WodNumDevs) {
 565         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 566         return MMSYSERR_BADDEVICEID;
 567     }
 568
 569     memcpy(lpCaps, &WOutDev[wDevID].outcaps, min(dwSize, sizeof(*lpCaps)));
 570     return MMSYSERR_NOERROR;
 571 }
 572
 573 /**************************************************************************
 574  *                              wodOpen                         [internal]
 575  */
 576 static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 577 {
 578     WINE_WAVEDEV*               wwo;
 579     snd_pcm_t *                 pcm = NULL;
 580     snd_hctl_t *                hctl = NULL;
 581     snd_pcm_hw_params_t *       hw_params = NULL;
 582     snd_pcm_sw_params_t *       sw_params;
 583     snd_pcm_access_t            access;
 584     snd_pcm_format_t            format = -1;
 585     unsigned int                rate;
 586     unsigned int                buffer_time = 120000;
 587     unsigned int                period_time = 22000;
 588     snd_pcm_uframes_t           buffer_size;
 589     snd_pcm_uframes_t           period_size;
 590     int                         flags;
 591     int                         err=0;
 592     int                         dir=0;
 593     DWORD                       retcode = 0;
 594
 595     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 596     if (lpDesc == NULL) {
 597         WARN("Invalid Parameter !\n");
 598         return MMSYSERR_INVALPARAM;
 599     }
 600     if (wDevID >= ALSA_WodNumDevs) {
 601         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 602         return MMSYSERR_BADDEVICEID;
 603     }
 604
 605     /* only PCM format is supported so far... */
 606     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 607         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 608              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 609              lpDesc->lpFormat->nSamplesPerSec);
 610         return WAVERR_BADFORMAT;
 611     }
 612
 613     if (dwFlags & WAVE_FORMAT_QUERY) {
 614         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 615              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 616              lpDesc->lpFormat->nSamplesPerSec);
 617         return MMSYSERR_NOERROR;
 618     }
 619
 620     wwo = &WOutDev[wDevID];
 621
 622     if (wwo->pcm != NULL) {
 623         WARN("%d already allocated\n", wDevID);
 624         return MMSYSERR_ALLOCATED;
 625     }
 626
 627     if (dwFlags & WAVE_DIRECTSOUND)
 628         FIXME("Why are we called with DirectSound flag? It doesn't use MMSYSTEM any more\n");
 629         /* not supported, ignore it */
 630     dwFlags &= ~WAVE_DIRECTSOUND;
 631
 632     flags = SND_PCM_NONBLOCK;
 633
 634     if ( (err = snd_pcm_open(&pcm, wwo->pcmname, SND_PCM_STREAM_PLAYBACK, flags)) < 0)
 635     {
 636         ERR("Error open: %s\n", snd_strerror(err));
 637         return MMSYSERR_NOTENABLED;
 638     }
 639
 640     if (wwo->ctlname)
 641     {
 642         err = snd_hctl_open(&hctl, wwo->ctlname, 0);
 643         if (err >= 0)
 644         {
 645             snd_hctl_load(hctl);
 646         }
 647         else
 648         {
 649             WARN("Could not open hctl for [%s]: %s\n", wwo->ctlname, snd_strerror(err));
 650             hctl = NULL;
 651         }
 652     }
 653
 654     wwo->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 655
 656     wwo->waveDesc = *lpDesc;
 657     ALSA_copyFormat(lpDesc->lpFormat, &wwo->format);
 658
 659     TRACE("Requested this format: %dx%dx%d %s\n",
 660           wwo->format.Format.nSamplesPerSec,
 661           wwo->format.Format.wBitsPerSample,
 662           wwo->format.Format.nChannels,
 663           ALSA_getFormat(wwo->format.Format.wFormatTag));
 664
 665     if (wwo->format.Format.wBitsPerSample == 0) {
 666         WARN("Resetting zeroed wBitsPerSample\n");
 667         wwo->format.Format.wBitsPerSample = 8 *
 668             (wwo->format.Format.nAvgBytesPerSec /
 669              wwo->format.Format.nSamplesPerSec) /
 670             wwo->format.Format.nChannels;
 671     }
 672
 673 #define EXIT_ON_ERROR(f,e,txt) do \
 674 { \
 675     int err; \
 676     if ( (err = (f) ) < 0) \
 677     { \
 678         WARN(txt ": %s\n", snd_strerror(err)); \
 679         retcode=e; \
 680         goto errexit; \
 681     } \
 682 } while(0)
 683
 684     sw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof() );
 685     snd_pcm_hw_params_malloc(&hw_params);
 686     if (! hw_params)
 687     {
 688         retcode = MMSYSERR_NOMEM;
 689         goto errexit;
 690     }
 691     snd_pcm_hw_params_any(pcm, hw_params);
 692
 693     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
 694     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
 695         WARN("mmap not available. switching to standard write.\n");
 696         access = SND_PCM_ACCESS_RW_INTERLEAVED;
 697         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
 698         wwo->write = snd_pcm_writei;
 699     }
 700     else
 701         wwo->write = snd_pcm_mmap_writei;
 702
 703     if ((err = snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels)) < 0) {
 704         WARN("unable to set required channels: %d\n", wwo->format.Format.nChannels);
 705         EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels ), WAVERR_BADFORMAT, "unable to set required channels" );
 706     }
 707
 708     if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
 709         ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 710         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
 711         format = (wwo->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
 712                  (wwo->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
 713                  (wwo->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_3LE :
 714                  (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
 715     } else if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 716         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
 717         format = (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
 718     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
 719         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
 720         retcode = WAVERR_BADFORMAT;
 721         goto errexit;
 722     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
 723         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
 724         retcode = WAVERR_BADFORMAT;
 725         goto errexit;
 726     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
 727         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
 728         retcode = WAVERR_BADFORMAT;
 729         goto errexit;
 730     } else {
 731         ERR("invalid format: %0x04x\n", wwo->format.Format.wFormatTag);
 732         retcode = WAVERR_BADFORMAT;
 733         goto errexit;
 734     }
 735
 736     if ((err = snd_pcm_hw_params_set_format(pcm, hw_params, format)) < 0) {
 737         WARN("unable to set required format: %s\n", snd_pcm_format_name(format));
 738         EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format" );
 739     }
 740
 741     rate = wwo->format.Format.nSamplesPerSec;
 742     dir=0;
 743     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
 744     if (err < 0) {
 745         WARN("Rate %d Hz not available for playback: %s\n", wwo->format.Format.nSamplesPerSec, snd_strerror(rate));
 746         retcode = WAVERR_BADFORMAT;
 747         goto errexit;
 748     }
 749     if (!ALSA_NearMatch(rate, wwo->format.Format.nSamplesPerSec)) {
 750         WARN("Rate doesn't match (requested %d Hz, got %d Hz)\n", wwo->format.Format.nSamplesPerSec, rate);
 751         retcode = WAVERR_BADFORMAT;
 752         goto errexit;
 753     }
 754
 755     TRACE("Got this format: %dx%dx%d %s\n",
 756           wwo->format.Format.nSamplesPerSec,
 757           wwo->format.Format.wBitsPerSample,
 758           wwo->format.Format.nChannels,
 759           ALSA_getFormat(wwo->format.Format.wFormatTag));
 760
 761     dir=0;
 762     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
 763     dir=0;
 764     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
 765
 766     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
 767
 768     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
 769     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
 770
 771     snd_pcm_sw_params_current(pcm, sw_params);
 772
 773     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set start threshold");
 774     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
 775     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
 776     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
 777     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
 778 #undef EXIT_ON_ERROR
 779
 780     snd_pcm_prepare(pcm);
 781
 782     if (TRACE_ON(wave))
 783         ALSA_TraceParameters(hw_params, sw_params, FALSE);
 784
 785     /* now, we can save all required data for later use... */
 786
 787     wwo->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 788     wwo->lpQueuePtr = wwo->lpPlayPtr = wwo->lpLoopPtr = NULL;
 789     wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
 790     wwo->dwPartialOffset = 0;
 791
 792     ALSA_InitRingMessage(&wwo->msgRing);
 793
 794     wwo->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 795     wwo->hThread = CreateThread(NULL, 0, wodPlayer, (LPVOID)(DWORD_PTR)wDevID, 0, &(wwo->dwThreadID));
 796     if (wwo->hThread)
 797         SetThreadPriority(wwo->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 798     else
 799     {
 800         ERR("Thread creation for the wodPlayer failed!\n");
 801         CloseHandle(wwo->hStartUpEvent);
 802         retcode = MMSYSERR_NOMEM;
 803         goto errexit;
 804     }
 805     WaitForSingleObject(wwo->hStartUpEvent, INFINITE);
 806     CloseHandle(wwo->hStartUpEvent);
 807     wwo->hStartUpEvent = INVALID_HANDLE_VALUE;
 808
 809     TRACE("handle=%p\n", pcm);
 810     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 811           wwo->format.Format.wBitsPerSample, wwo->format.Format.nAvgBytesPerSec,
 812           wwo->format.Format.nSamplesPerSec, wwo->format.Format.nChannels,
 813           wwo->format.Format.nBlockAlign);
 814
 815     HeapFree( GetProcessHeap(), 0, sw_params );
 816     wwo->pcm = pcm;
 817     wwo->hctl = hctl;
 818     if ( wwo->hw_params )
 819         snd_pcm_hw_params_free(wwo->hw_params);
 820     wwo->hw_params = hw_params;
 821
 822     return wodNotifyClient(wwo, WOM_OPEN, 0L, 0L);
 823
 824 errexit:
 825     if (pcm)
 826         snd_pcm_close(pcm);
 827
 828     if (hctl)
 829     {
 830         snd_hctl_free(hctl);
 831         snd_hctl_close(hctl);
 832     }
 833
 834     if ( hw_params )
 835         snd_pcm_hw_params_free(hw_params);
 836
 837     HeapFree( GetProcessHeap(), 0, sw_params );
 838     if (wwo->msgRing.ring_buffer_size > 0)
 839         ALSA_DestroyRingMessage(&wwo->msgRing);
 840
 841     return retcode;
 842 }
 843
 844
 845 /**************************************************************************
 846  *                              wodClose                        [internal]
 847  */
 848 static DWORD wodClose(WORD wDevID)
 849 {
 850     DWORD               ret = MMSYSERR_NOERROR;
 851     WINE_WAVEDEV*       wwo;
 852
 853     TRACE("(%u);\n", wDevID);
 854
 855     if (wDevID >= ALSA_WodNumDevs) {
 856         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 857         return MMSYSERR_BADDEVICEID;
 858     }
 859
 860     if (WOutDev[wDevID].pcm == NULL) {
 861         WARN("Requested to close already closed device %d!\n", wDevID);
 862         return MMSYSERR_BADDEVICEID;
 863     }
 864
 865     wwo = &WOutDev[wDevID];
 866     if (wwo->lpQueuePtr) {
 867         WARN("buffers still playing !\n");
 868         ret = WAVERR_STILLPLAYING;
 869     } else {
 870         if (wwo->hThread != INVALID_HANDLE_VALUE) {
 871             ALSA_AddRingMessage(&wwo->msgRing, WINE_WM_CLOSING, 0, TRUE);
 872         }
 873         ALSA_DestroyRingMessage(&wwo->msgRing);
 874
 875         if (wwo->hw_params)
 876             snd_pcm_hw_params_free(wwo->hw_params);
 877         wwo->hw_params = NULL;
 878
 879         if (wwo->pcm)
 880             snd_pcm_close(wwo->pcm);
 881         wwo->pcm = NULL;
 882
 883         if (wwo->hctl)
 884         {
 885             snd_hctl_free(wwo->hctl);
 886             snd_hctl_close(wwo->hctl);
 887         }
 888         wwo->hctl = NULL;
 889
 890         ret = wodNotifyClient(wwo, WOM_CLOSE, 0L, 0L);
 891     }
 892
 893     return ret;
 894 }
 895
 896
 897 /**************************************************************************
 898  *                              wodWrite                        [internal]
 899  *
 900  */
 901 static DWORD wodWrite(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 902 {
 903     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 904
 905     if (wDevID >= ALSA_WodNumDevs) {
 906         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 907         return MMSYSERR_BADDEVICEID;
 908     }
 909
 910     if (WOutDev[wDevID].pcm == NULL) {
 911         WARN("Requested to write to closed device %d!\n", wDevID);
 912         return MMSYSERR_BADDEVICEID;
 913     }
 914
 915     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
 916         return WAVERR_UNPREPARED;
 917
 918     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
 919         return WAVERR_STILLPLAYING;
 920
 921     lpWaveHdr->dwFlags &= ~WHDR_DONE;
 922     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
 923     lpWaveHdr->lpNext = 0;
 924
 925     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD_PTR)lpWaveHdr, FALSE);
 926
 927     return MMSYSERR_NOERROR;
 928 }
 929
 930 /**************************************************************************
 931  *                      wodPause                                [internal]
 932  */
 933 static DWORD wodPause(WORD wDevID)
 934 {
 935     TRACE("(%u);!\n", wDevID);
 936
 937     if (wDevID >= ALSA_WodNumDevs) {
 938         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 939         return MMSYSERR_BADDEVICEID;
 940     }
 941
 942     if (WOutDev[wDevID].pcm == NULL) {
 943         WARN("Requested to pause closed device %d!\n", wDevID);
 944         return MMSYSERR_BADDEVICEID;
 945     }
 946
 947     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_PAUSING, 0, TRUE);
 948
 949     return MMSYSERR_NOERROR;
 950 }
 951
 952 /**************************************************************************
 953  *                      wodRestart                              [internal]
 954  */
 955 static DWORD wodRestart(WORD wDevID)
 956 {
 957     TRACE("(%u);\n", wDevID);
 958
 959     if (wDevID >= ALSA_WodNumDevs) {
 960         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 961         return MMSYSERR_BADDEVICEID;
 962     }
 963
 964     if (WOutDev[wDevID].pcm == NULL) {
 965         WARN("Requested to restart closed device %d!\n", wDevID);
 966         return MMSYSERR_BADDEVICEID;
 967     }
 968
 969     if (WOutDev[wDevID].state == WINE_WS_PAUSED) {
 970         ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESTARTING, 0, TRUE);
 971     }
 972
 973     /* FIXME: is NotifyClient with WOM_DONE right ? (Comet Busters 1.3.3 needs this notification) */
 974     /* FIXME: Myst crashes with this ... hmm -MM
 975        return wodNotifyClient(wwo, WOM_DONE, 0L, 0L);
 976     */
 977
 978     return MMSYSERR_NOERROR;
 979 }
 980
 981 /**************************************************************************
 982  *                      wodReset                                [internal]
 983  */
 984 static DWORD wodReset(WORD wDevID)
 985 {
 986     TRACE("(%u);\n", wDevID);
 987
 988     if (wDevID >= ALSA_WodNumDevs) {
 989         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 990         return MMSYSERR_BADDEVICEID;
 991     }
 992
 993     if (WOutDev[wDevID].pcm == NULL) {
 994         WARN("Requested to reset closed device %d!\n", wDevID);
 995         return MMSYSERR_BADDEVICEID;
 996     }
 997
 998     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
 999
1000     return MMSYSERR_NOERROR;
1001 }
1002
1003 /**************************************************************************
1004  *                              wodGetPosition                  [internal]
1005  */
1006 static DWORD wodGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
1007 {
1008     WINE_WAVEDEV*       wwo;
1009
1010     TRACE("(%u, %p, %u);\n", wDevID, lpTime, uSize);
1011
1012     if (wDevID >= ALSA_WodNumDevs) {
1013         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1014         return MMSYSERR_BADDEVICEID;
1015     }
1016
1017     if (WOutDev[wDevID].pcm == NULL) {
1018         WARN("Requested to get position of closed device %d!\n", wDevID);
1019         return MMSYSERR_BADDEVICEID;
1020     }
1021
1022     if (lpTime == NULL) return MMSYSERR_INVALPARAM;
1023
1024     wwo = &WOutDev[wDevID];
1025     return ALSA_bytes_to_mmtime(lpTime, wwo->dwPlayedTotal, &wwo->format);
1026 }
1027
1028 /**************************************************************************
1029  *                              wodBreakLoop                    [internal]
1030  */
1031 static DWORD wodBreakLoop(WORD wDevID)
1032 {
1033     TRACE("(%u);\n", wDevID);
1034
1035     if (wDevID >= ALSA_WodNumDevs) {
1036         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1037         return MMSYSERR_BADDEVICEID;
1038     }
1039
1040     if (WOutDev[wDevID].pcm == NULL) {
1041         WARN("Requested to breakloop of closed device %d!\n", wDevID);
1042         return MMSYSERR_BADDEVICEID;
1043     }
1044
1045     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_BREAKLOOP, 0, TRUE);
1046     return MMSYSERR_NOERROR;
1047 }
1048
1049 /**************************************************************************
1050  *                              wodGetVolume                    [internal]
1051  */
1052 static DWORD wodGetVolume(WORD wDevID, LPDWORD lpdwVol)
1053 {
1054     WORD               wleft, wright;
1055     WINE_WAVEDEV*      wwo;
1056     int                min, max;
1057     int                left, right;
1058     DWORD              rc;
1059
1060     TRACE("(%u, %p);\n", wDevID, lpdwVol);
1061     if (wDevID >= ALSA_WodNumDevs) {
1062         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1063         return MMSYSERR_BADDEVICEID;
1064     }
1065
1066     if (lpdwVol == NULL)
1067         return MMSYSERR_NOTENABLED;
1068
1069     wwo = &WOutDev[wDevID];
1070
1071     if (lpdwVol == NULL)
1072         return MMSYSERR_NOTENABLED;
1073
1074     rc = ALSA_CheckSetVolume(wwo->hctl, &left, &right, &min, &max, NULL, NULL, NULL);
1075     if (rc == MMSYSERR_NOERROR)
1076     {
1077 #define VOLUME_ALSA_TO_WIN(x) (  ( (((x)-min) * 65535) + (max-min)/2 ) /(max-min))
1078         wleft = VOLUME_ALSA_TO_WIN(left);
1079         wright = VOLUME_ALSA_TO_WIN(right);
1080 #undef VOLUME_ALSA_TO_WIN
1081         TRACE("left=%d,right=%d,converted to windows left %d, right %d\n", left, right, wleft, wright);
1082         *lpdwVol = MAKELONG( wleft, wright );
1083     }
1084     else
1085         TRACE("CheckSetVolume failed; rc %d\n", rc);
1086
1087     return rc;
1088 }
1089
1090 /**************************************************************************
1091  *                              wodSetVolume                    [internal]
1092  */
1093 static DWORD wodSetVolume(WORD wDevID, DWORD dwParam)
1094 {
1095     WORD               wleft, wright;
1096     WINE_WAVEDEV*      wwo;
1097     int                min, max;
1098     int                left, right;
1099     DWORD              rc;
1100
1101     TRACE("(%u, %08X);\n", wDevID, dwParam);
1102     if (wDevID >= ALSA_WodNumDevs) {
1103         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1104         return MMSYSERR_BADDEVICEID;
1105     }
1106
1107     wwo = &WOutDev[wDevID];
1108
1109     rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, &min, &max, NULL, NULL, NULL);
1110     if (rc == MMSYSERR_NOERROR)
1111     {
1112         wleft  = LOWORD(dwParam);
1113         wright = HIWORD(dwParam);
1114 #define VOLUME_WIN_TO_ALSA(x) ( (  ( ((x) * (max-min)) + 32767) / 65535) + min )
1115         left = VOLUME_WIN_TO_ALSA(wleft);
1116         right = VOLUME_WIN_TO_ALSA(wright);
1117 #undef VOLUME_WIN_TO_ALSA
1118         rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, NULL, NULL, NULL, &left, &right);
1119         if (rc == MMSYSERR_NOERROR)
1120             TRACE("set volume:  wleft=%d, wright=%d, converted to alsa left %d, right %d\n", wleft, wright, left, right);
1121         else
1122             TRACE("SetVolume failed; rc %d\n", rc);
1123     }
1124
1125     return rc;
1126 }
1127
1128 /**************************************************************************
1129  *                              wodGetNumDevs                   [internal]
1130  */
1131 static  DWORD   wodGetNumDevs(void)
1132 {
1133     return ALSA_WodNumDevs;
1134 }
1135
1136 /**************************************************************************
1137  *                              wodDevInterfaceSize             [internal]
1138  */
1139 static DWORD wodDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
1140 {
1141     TRACE("(%u, %p)\n", wDevID, dwParam1);
1142
1143     *dwParam1 = MultiByteToWideChar(CP_UNIXCP, 0, WOutDev[wDevID].interface_name, -1,
1144                                     NULL, 0 ) * sizeof(WCHAR);
1145     return MMSYSERR_NOERROR;
1146 }
1147
1148 /**************************************************************************
1149  *                              wodDevInterface                 [internal]
1150  */
1151 static DWORD wodDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
1152 {
1153     if (dwParam2 >= MultiByteToWideChar(CP_UNIXCP, 0, WOutDev[wDevID].interface_name, -1,
1154                                         NULL, 0 ) * sizeof(WCHAR))
1155     {
1156         MultiByteToWideChar(CP_UNIXCP, 0, WOutDev[wDevID].interface_name, -1,
1157                             dwParam1, dwParam2 / sizeof(WCHAR));
1158         return MMSYSERR_NOERROR;
1159     }
1160     return MMSYSERR_INVALPARAM;
1161 }
1162
1163 /**************************************************************************
1164  *                              wodMessage (WINEALSA.@)
1165  */
1166 DWORD WINAPI ALSA_wodMessage(UINT wDevID, UINT wMsg, DWORD_PTR dwUser,
1167                              DWORD_PTR dwParam1, DWORD_PTR dwParam2)
1168 {
1169     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
1170           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
1171
1172     switch (wMsg) {
1173     case DRVM_INIT:
1174     case DRVM_EXIT:
1175     case DRVM_ENABLE:
1176     case DRVM_DISABLE:
1177         /* FIXME: Pretend this is supported */
1178         return 0;
1179     case WODM_OPEN:             return wodOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
1180     case WODM_CLOSE:            return wodClose         (wDevID);
1181     case WODM_GETDEVCAPS:       return wodGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
1182     case WODM_GETNUMDEVS:       return wodGetNumDevs    ();
1183     case WODM_GETPITCH:         return MMSYSERR_NOTSUPPORTED;
1184     case WODM_SETPITCH:         return MMSYSERR_NOTSUPPORTED;
1185     case WODM_GETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
1186     case WODM_SETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
1187     case WODM_WRITE:            return wodWrite         (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
1188     case WODM_PAUSE:            return wodPause         (wDevID);
1189     case WODM_GETPOS:           return wodGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
1190     case WODM_BREAKLOOP:        return wodBreakLoop     (wDevID);
1191     case WODM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
1192     case WODM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
1193     case WODM_GETVOLUME:        return wodGetVolume     (wDevID, (LPDWORD)dwParam1);
1194     case WODM_SETVOLUME:        return wodSetVolume     (wDevID, dwParam1);
1195     case WODM_RESTART:          return wodRestart       (wDevID);
1196     case WODM_RESET:            return wodReset         (wDevID);
1197     case DRV_QUERYDEVICEINTERFACESIZE: return wodDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
1198     case DRV_QUERYDEVICEINTERFACE:     return wodDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
1199     case DRV_QUERYDSOUNDIFACE:  return wodDsCreate      (wDevID, (PIDSDRIVER*)dwParam1);
1200     case DRV_QUERYDSOUNDDESC:   return wodDsDesc        (wDevID, (PDSDRIVERDESC)dwParam1);
1201
1202     default:
1203         FIXME("unknown message %d!\n", wMsg);
1204     }
1205     return MMSYSERR_NOTSUPPORTED;
1206 }
1207
1208 #else /* HAVE_ALSA */
1209
1210 /**************************************************************************
1211  *                              wodMessage (WINEALSA.@)
1212  */
1213 DWORD WINAPI ALSA_wodMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
1214                              DWORD dwParam1, DWORD dwParam2)
1215 {
1216     FIXME("(%u, %04X, %08X, %08X, %08X):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
1217     return MMSYSERR_NOTENABLED;
1218 }
1219
1220 #endif /* HAVE_ALSA */