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