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