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