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

   1 /*
   2  * Sample Wine Driver for Advanced Linux Sound System (ALSA)
   3  *      Based on version <final> of the ALSA API
   4  *
   5  * Copyright    2002 Eric Pouech
   6  *              2002 Marco Pietrobono
   7  *              2003 Christian Costa : WaveIn support
   8  *              2006-2007 Maarten Lankhorst
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 /*======================================================================*
  26  *                  Low level WAVE OUT implementation                   *
  27  *======================================================================*/
  28
  29 #include "config.h"
  30 #include "wine/port.h"
  31
  32 #include <stdlib.h>
  33 #include <stdarg.h>
  34 #include <stdio.h>
  35 #include <string.h>
  36 #ifdef HAVE_UNISTD_H
  37 # include <unistd.h>
  38 #endif
  39 #include <errno.h>
  40 #include <limits.h>
  41 #include <fcntl.h>
  42 #ifdef HAVE_SYS_IOCTL_H
  43 # include <sys/ioctl.h>
  44 #endif
  45 #ifdef HAVE_SYS_MMAN_H
  46 # include <sys/mman.h>
  47 #endif
  48 #include "windef.h"
  49 #include "winbase.h"
  50 #include "wingdi.h"
  51 #include "winuser.h"
  52 #include "winnls.h"
  53 #include "mmddk.h"
  54
  55 #include "alsa.h"
  56
  57 #include "wine/library.h"
  58 #include "wine/unicode.h"
  59 #include "wine/debug.h"
  60
  61 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  62
  63 #ifdef HAVE_ALSA
  64
  65 WINE_WAVEDEV    *WOutDev;
  66 DWORD            ALSA_WodNumMallocedDevs;
  67 DWORD            ALSA_WodNumDevs;
  68
  69 /**************************************************************************
  70  *                      wodNotifyClient                 [internal]
  71  */
  72 static DWORD wodNotifyClient(WINE_WAVEDEV* wwo, WORD wMsg, DWORD dwParam1, DWORD dwParam2)
  73 {
  74     TRACE("wMsg = 0x%04x dwParm1 = %04X dwParam2 = %04X\n", wMsg, dwParam1, dwParam2);
  75
  76     switch (wMsg) {
  77     case WOM_OPEN:
  78     case WOM_CLOSE:
  79     case WOM_DONE:
  80         if (wwo->wFlags != DCB_NULL &&
  81             !DriverCallback(wwo->waveDesc.dwCallback, wwo->wFlags, (HDRVR)wwo->waveDesc.hWave,
  82                             wMsg, wwo->waveDesc.dwInstance, dwParam1, dwParam2)) {
  83             WARN("can't notify client !\n");
  84             return MMSYSERR_ERROR;
  85         }
  86         break;
  87     default:
  88         FIXME("Unknown callback message %u\n", wMsg);
  89         return MMSYSERR_INVALPARAM;
  90     }
  91     return MMSYSERR_NOERROR;
  92 }
  93
  94 /**************************************************************************
  95  *                              wodUpdatePlayedTotal    [internal]
  96  *
  97  */
  98 static BOOL wodUpdatePlayedTotal(WINE_WAVEDEV* wwo, snd_pcm_status_t* ps)
  99 {
 100     snd_pcm_sframes_t delay = 0;
 101     snd_pcm_state_t state;
 102
 103     state = snd_pcm_state(wwo->pcm);
 104     snd_pcm_delay(wwo->pcm, &delay);
 105
 106     /* A delay < 0 indicates an underrun; for our purposes that's 0.  */
 107     if ( (state != SND_PCM_STATE_RUNNING && state != SND_PCM_STATE_PREPARED) || (delay < 0))
 108     {
 109         WARN("Unexpected state (%d) or delay (%ld) while updating Total Played, resetting\n", state, delay);
 110         delay=0;
 111     }
 112     InterlockedExchange((LONG*)&wwo->dwPlayedTotal, wwo->dwWrittenTotal - snd_pcm_frames_to_bytes(wwo->pcm, delay));
 113     return TRUE;
 114 }
 115
 116 /**************************************************************************
 117  *                              wodPlayer_BeginWaveHdr          [internal]
 118  *
 119  * Makes the specified lpWaveHdr the currently playing wave header.
 120  * If the specified wave header is a begin loop and we're not already in
 121  * a loop, setup the loop.
 122  */
 123 static void wodPlayer_BeginWaveHdr(WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
 124 {
 125     wwo->lpPlayPtr = lpWaveHdr;
 126
 127     if (!lpWaveHdr) return;
 128
 129     if (lpWaveHdr->dwFlags & WHDR_BEGINLOOP) {
 130         if (wwo->lpLoopPtr) {
 131             WARN("Already in a loop. Discarding loop on this header (%p)\n", lpWaveHdr);
 132         } else {
 133             TRACE("Starting loop (%dx) with %p\n", lpWaveHdr->dwLoops, lpWaveHdr);
 134             wwo->lpLoopPtr = lpWaveHdr;
 135             /* Windows does not touch WAVEHDR.dwLoops,
 136              * so we need to make an internal copy */
 137             wwo->dwLoops = lpWaveHdr->dwLoops;
 138         }
 139     }
 140     wwo->dwPartialOffset = 0;
 141 }
 142
 143 /**************************************************************************
 144  *                              wodPlayer_PlayPtrNext           [internal]
 145  *
 146  * Advance the play pointer to the next waveheader, looping if required.
 147  */
 148 static LPWAVEHDR wodPlayer_PlayPtrNext(WINE_WAVEDEV* wwo)
 149 {
 150     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
 151
 152     wwo->dwPartialOffset = 0;
 153     if ((lpWaveHdr->dwFlags & WHDR_ENDLOOP) && wwo->lpLoopPtr) {
 154         /* We're at the end of a loop, loop if required */
 155         if (--wwo->dwLoops > 0) {
 156             wwo->lpPlayPtr = wwo->lpLoopPtr;
 157         } else {
 158             /* Handle overlapping loops correctly */
 159             if (wwo->lpLoopPtr != lpWaveHdr && (lpWaveHdr->dwFlags & WHDR_BEGINLOOP)) {
 160                 FIXME("Correctly handled case ? (ending loop buffer also starts a new loop)\n");
 161                 /* shall we consider the END flag for the closing loop or for
 162                  * the opening one or for both ???
 163                  * code assumes for closing loop only
 164                  */
 165             } else {
 166                 lpWaveHdr = lpWaveHdr->lpNext;
 167             }
 168             wwo->lpLoopPtr = NULL;
 169             wodPlayer_BeginWaveHdr(wwo, lpWaveHdr);
 170         }
 171     } else {
 172         /* We're not in a loop.  Advance to the next wave header */
 173         wodPlayer_BeginWaveHdr(wwo, lpWaveHdr = lpWaveHdr->lpNext);
 174     }
 175
 176     return lpWaveHdr;
 177 }
 178
 179 /**************************************************************************
 180  *                           wodPlayer_DSPWait                  [internal]
 181  * Returns the number of milliseconds to wait for the DSP buffer to play a
 182  * period
 183  */
 184 static DWORD wodPlayer_DSPWait(const WINE_WAVEDEV *wwo)
 185 {
 186     /* time for one period to be played */
 187     unsigned int val=0;
 188     int dir=0;
 189     int err=0;
 190     err = snd_pcm_hw_params_get_period_time(wwo->hw_params, &val, &dir);
 191     return val / 1000;
 192 }
 193
 194 /**************************************************************************
 195  *                           wodPlayer_NotifyWait               [internal]
 196  * Returns the number of milliseconds to wait before attempting to notify
 197  * completion of the specified wavehdr.
 198  * This is based on the number of bytes remaining to be written in the
 199  * wave.
 200  */
 201 static DWORD wodPlayer_NotifyWait(const WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
 202 {
 203     DWORD dwMillis;
 204
 205     if (lpWaveHdr->reserved < wwo->dwPlayedTotal) {
 206         dwMillis = 1;
 207     } else {
 208         dwMillis = (lpWaveHdr->reserved - wwo->dwPlayedTotal) * 1000 / wwo->format.Format.nAvgBytesPerSec;
 209         if (!dwMillis) dwMillis = 1;
 210     }
 211
 212     return dwMillis;
 213 }
 214
 215
 216 /**************************************************************************
 217  *                           wodPlayer_WriteMaxFrags            [internal]
 218  * Writes the maximum number of frames possible to the DSP and returns
 219  * the number of frames written.
 220  */
 221 static int wodPlayer_WriteMaxFrags(WINE_WAVEDEV* wwo, DWORD* frames)
 222 {
 223     /* Only attempt to write to free frames */
 224     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
 225     DWORD dwLength = snd_pcm_bytes_to_frames(wwo->pcm, lpWaveHdr->dwBufferLength - wwo->dwPartialOffset);
 226     int toWrite = min(dwLength, *frames);
 227     int written;
 228
 229     TRACE("Writing wavehdr %p.%u[%u]\n", lpWaveHdr, wwo->dwPartialOffset, lpWaveHdr->dwBufferLength);
 230
 231     if (toWrite > 0) {
 232         written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
 233         if ( written < 0) {
 234             /* XRUN occurred. let's try to recover */
 235             ALSA_XRUNRecovery(wwo, written);
 236             written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
 237         }
 238         if (written <= 0) {
 239             /* still in error */
 240             ERR("Error in writing wavehdr. Reason: %s\n", snd_strerror(written));
 241             return written;
 242         }
 243     } else
 244         written = 0;
 245
 246     wwo->dwPartialOffset += snd_pcm_frames_to_bytes(wwo->pcm, written);
 247     if ( wwo->dwPartialOffset >= lpWaveHdr->dwBufferLength) {
 248         /* this will be used to check if the given wave header has been fully played or not... */
 249         wwo->dwPartialOffset = lpWaveHdr->dwBufferLength;
 250         /* If we wrote all current wavehdr, skip to the next one */
 251         wodPlayer_PlayPtrNext(wwo);
 252     }
 253     *frames -= written;
 254     wwo->dwWrittenTotal += snd_pcm_frames_to_bytes(wwo->pcm, written);
 255     TRACE("dwWrittenTotal=%u\n", wwo->dwWrittenTotal);
 256
 257     return written;
 258 }
 259
 260
 261 /**************************************************************************
 262  *                              wodPlayer_NotifyCompletions     [internal]
 263  *
 264  * Notifies and remove from queue all wavehdrs which have been played to
 265  * the speaker (ie. they have cleared the ALSA buffer).  If force is true,
 266  * we notify all wavehdrs and remove them all from the queue even if they
 267  * are unplayed or part of a loop.
 268  */
 269 static DWORD wodPlayer_NotifyCompletions(WINE_WAVEDEV* wwo, BOOL force)
 270 {
 271     LPWAVEHDR           lpWaveHdr;
 272
 273     /* Start from lpQueuePtr and keep notifying until:
 274      * - we hit an unwritten wavehdr
 275      * - we hit the beginning of a running loop
 276      * - we hit a wavehdr which hasn't finished playing
 277      */
 278     for (;;)
 279     {
 280         lpWaveHdr = wwo->lpQueuePtr;
 281         if (!lpWaveHdr) {TRACE("Empty queue\n"); break;}
 282         if (!force)
 283         {
 284             if (lpWaveHdr == wwo->lpPlayPtr) {TRACE("play %p\n", lpWaveHdr); break;}
 285             if (lpWaveHdr == wwo->lpLoopPtr) {TRACE("loop %p\n", lpWaveHdr); break;}
 286             if (lpWaveHdr->reserved > wwo->dwPlayedTotal) {TRACE("still playing %p (%u/%u)\n", lpWaveHdr, lpWaveHdr->reserved, wwo->dwPlayedTotal);break;}
 287         }
 288         wwo->lpQueuePtr = lpWaveHdr->lpNext;
 289
 290         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 291         lpWaveHdr->dwFlags |= WHDR_DONE;
 292
 293         wodNotifyClient(wwo, WOM_DONE, (DWORD)lpWaveHdr, 0);
 294     }
 295     return  (lpWaveHdr && lpWaveHdr != wwo->lpPlayPtr && lpWaveHdr != wwo->lpLoopPtr) ?
 296         wodPlayer_NotifyWait(wwo, lpWaveHdr) : INFINITE;
 297 }
 298
 299
 300 /**************************************************************************
 301  *                              wodPlayer_Reset                 [internal]
 302  *
 303  * wodPlayer helper. Resets current output stream.
 304  */
 305 static  void    wodPlayer_Reset(WINE_WAVEDEV* wwo, BOOL reset)
 306 {
 307     int                         err;
 308     TRACE("(%p)\n", wwo);
 309
 310     /* flush all possible output */
 311     snd_pcm_drain(wwo->pcm);
 312
 313     wodUpdatePlayedTotal(wwo, NULL);
 314     /* updates current notify list */
 315     wodPlayer_NotifyCompletions(wwo, FALSE);
 316
 317     if ( (err = snd_pcm_drop(wwo->pcm)) < 0) {
 318         FIXME("flush: %s\n", snd_strerror(err));
 319         wwo->hThread = 0;
 320         wwo->state = WINE_WS_STOPPED;
 321         ExitThread(-1);
 322     }
 323     if ( (err = snd_pcm_prepare(wwo->pcm)) < 0 )
 324         ERR("pcm prepare failed: %s\n", snd_strerror(err));
 325
 326     if (reset) {
 327         enum win_wm_message     msg;
 328         DWORD                   param;
 329         HANDLE                  ev;
 330
 331         /* remove any buffer */
 332         wodPlayer_NotifyCompletions(wwo, TRUE);
 333
 334         wwo->lpPlayPtr = wwo->lpQueuePtr = wwo->lpLoopPtr = NULL;
 335         wwo->state = WINE_WS_STOPPED;
 336         wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
 337         /* Clear partial wavehdr */
 338         wwo->dwPartialOffset = 0;
 339
 340         /* remove any existing message in the ring */
 341         EnterCriticalSection(&wwo->msgRing.msg_crst);
 342         /* return all pending headers in queue */
 343         while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev))
 344         {
 345             if (msg != WINE_WM_HEADER)
 346             {
 347                 FIXME("shouldn't have headers left\n");
 348                 SetEvent(ev);
 349                 continue;
 350             }
 351             ((LPWAVEHDR)param)->dwFlags &= ~WHDR_INQUEUE;
 352             ((LPWAVEHDR)param)->dwFlags |= WHDR_DONE;
 353
 354                 wodNotifyClient(wwo, WOM_DONE, param, 0);
 355         }
 356         ALSA_ResetRingMessage(&wwo->msgRing);
 357         LeaveCriticalSection(&wwo->msgRing.msg_crst);
 358     } else {
 359         if (wwo->lpLoopPtr) {
 360             /* complicated case, not handled yet (could imply modifying the loop counter */
 361             FIXME("Pausing while in loop isn't correctly handled yet, except strange results\n");
 362             wwo->lpPlayPtr = wwo->lpLoopPtr;
 363             wwo->dwPartialOffset = 0;
 364             wwo->dwWrittenTotal = wwo->dwPlayedTotal; /* this is wrong !!! */
 365         } else {
 366             LPWAVEHDR   ptr;
 367             DWORD       sz = wwo->dwPartialOffset;
 368
 369             /* reset all the data as if we had written only up to lpPlayedTotal bytes */
 370             /* compute the max size playable from lpQueuePtr */
 371             for (ptr = wwo->lpQueuePtr; ptr != wwo->lpPlayPtr; ptr = ptr->lpNext) {
 372                 sz += ptr->dwBufferLength;
 373             }
 374             /* because the reset lpPlayPtr will be lpQueuePtr */
 375             if (wwo->dwWrittenTotal > wwo->dwPlayedTotal + sz) ERR("grin\n");
 376             wwo->dwPartialOffset = sz - (wwo->dwWrittenTotal - wwo->dwPlayedTotal);
 377             wwo->dwWrittenTotal = wwo->dwPlayedTotal;
 378             wwo->lpPlayPtr = wwo->lpQueuePtr;
 379         }
 380         wwo->state = WINE_WS_PAUSED;
 381     }
 382 }
 383
 384 /**************************************************************************
 385  *                    wodPlayer_ProcessMessages                 [internal]
 386  */
 387 static void wodPlayer_ProcessMessages(WINE_WAVEDEV* wwo)
 388 {
 389     LPWAVEHDR           lpWaveHdr;
 390     enum win_wm_message msg;
 391     DWORD               param;
 392     HANDLE              ev;
 393     int                 err;
 394
 395     while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev)) {
 396      TRACE("Received %s %x\n", ALSA_getCmdString(msg), param);
 397
 398         switch (msg) {
 399         case WINE_WM_PAUSING:
 400             if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_RUNNING )
 401              {
 402                 if ( snd_pcm_hw_params_can_pause(wwo->hw_params) )
 403                 {
 404                     err = snd_pcm_pause(wwo->pcm, 1);
 405                     if ( err < 0 )
 406                         ERR("pcm_pause failed: %s\n", snd_strerror(err));
 407                     wwo->state = WINE_WS_PAUSED;
 408                 }
 409                 else
 410                 {
 411                     wodPlayer_Reset(wwo,FALSE);
 412                 }
 413              }
 414             SetEvent(ev);
 415             break;
 416         case WINE_WM_RESTARTING:
 417             if (wwo->state == WINE_WS_PAUSED)
 418             {
 419                 if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_PAUSED )
 420                  {
 421                     err = snd_pcm_pause(wwo->pcm, 0);
 422                     if ( err < 0 )
 423                         ERR("pcm_pause failed: %s\n", snd_strerror(err));
 424                  }
 425                 wwo->state = WINE_WS_PLAYING;
 426             }
 427             SetEvent(ev);
 428             break;
 429         case WINE_WM_HEADER:
 430             lpWaveHdr = (LPWAVEHDR)param;
 431
 432             /* insert buffer at the end of queue */
 433             {
 434                 LPWAVEHDR*      wh;
 435                 for (wh = &(wwo->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 436                 *wh = lpWaveHdr;
 437             }
 438             if (!wwo->lpPlayPtr)
 439                 wodPlayer_BeginWaveHdr(wwo,lpWaveHdr);
 440             if (wwo->state == WINE_WS_STOPPED)
 441                 wwo->state = WINE_WS_PLAYING;
 442             break;
 443         case WINE_WM_RESETTING:
 444             wodPlayer_Reset(wwo,TRUE);
 445             SetEvent(ev);
 446             break;
 447         case WINE_WM_BREAKLOOP:
 448             if (wwo->state == WINE_WS_PLAYING && wwo->lpLoopPtr != NULL) {
 449                 /* ensure exit at end of current loop */
 450                 wwo->dwLoops = 1;
 451             }
 452             SetEvent(ev);
 453             break;
 454         case WINE_WM_CLOSING:
 455             /* sanity check: this should not happen since the device must have been reset before */
 456             if (wwo->lpQueuePtr || wwo->lpPlayPtr) ERR("out of sync\n");
 457             wwo->hThread = 0;
 458             wwo->state = WINE_WS_CLOSED;
 459             SetEvent(ev);
 460             ExitThread(0);
 461             /* shouldn't go here */
 462         default:
 463             FIXME("unknown message %d\n", msg);
 464             break;
 465         }
 466     }
 467 }
 468
 469 /**************************************************************************
 470  *                           wodPlayer_FeedDSP                  [internal]
 471  * Feed as much sound data as we can into the DSP and return the number of
 472  * milliseconds before it will be necessary to feed the DSP again.
 473  */
 474 static DWORD wodPlayer_FeedDSP(WINE_WAVEDEV* wwo)
 475 {
 476     DWORD               availInQ;
 477
 478     wodUpdatePlayedTotal(wwo, NULL);
 479     availInQ = snd_pcm_avail_update(wwo->pcm);
 480
 481     /* no more room... no need to try to feed */
 482     if (availInQ > 0) {
 483         /* Feed from partial wavehdr */
 484         if (wwo->lpPlayPtr && wwo->dwPartialOffset != 0) {
 485             wodPlayer_WriteMaxFrags(wwo, &availInQ);
 486         }
 487
 488         /* Feed wavehdrs until we run out of wavehdrs or DSP space */
 489         if (wwo->dwPartialOffset == 0 && wwo->lpPlayPtr) {
 490             do {
 491                 TRACE("Setting time to elapse for %p to %u\n",
 492                       wwo->lpPlayPtr, wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength);
 493                 /* note the value that dwPlayedTotal will return when this wave finishes playing */
 494                 wwo->lpPlayPtr->reserved = wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength;
 495             } while (wodPlayer_WriteMaxFrags(wwo, &availInQ) && wwo->lpPlayPtr && availInQ > 0);
 496         }
 497     }
 498
 499     return wodPlayer_DSPWait(wwo);
 500 }
 501
 502 /**************************************************************************
 503  *                              wodPlayer                       [internal]
 504  */
 505 static  DWORD   CALLBACK        wodPlayer(LPVOID pmt)
 506 {
 507     WORD          uDevID = (DWORD)pmt;
 508     WINE_WAVEDEV* wwo = (WINE_WAVEDEV*)&WOutDev[uDevID];
 509     DWORD         dwNextFeedTime = INFINITE;   /* Time before DSP needs feeding */
 510     DWORD         dwNextNotifyTime = INFINITE; /* Time before next wave completion */
 511     DWORD         dwSleepTime;
 512
 513     wwo->state = WINE_WS_STOPPED;
 514     SetEvent(wwo->hStartUpEvent);
 515
 516     for (;;) {
 517         /** Wait for the shortest time before an action is required.  If there
 518          *  are no pending actions, wait forever for a command.
 519          */
 520         dwSleepTime = min(dwNextFeedTime, dwNextNotifyTime);
 521         TRACE("waiting %ums (%u,%u)\n", dwSleepTime, dwNextFeedTime, dwNextNotifyTime);
 522         ALSA_WaitRingMessage(&wwo->msgRing, dwSleepTime);
 523         wodPlayer_ProcessMessages(wwo);
 524         if (wwo->state == WINE_WS_PLAYING) {
 525             dwNextFeedTime = wodPlayer_FeedDSP(wwo);
 526             dwNextNotifyTime = wodPlayer_NotifyCompletions(wwo, FALSE);
 527             if (dwNextFeedTime == INFINITE) {
 528                 /* FeedDSP ran out of data, but before giving up, */
 529                 /* check that a notification didn't give us more */
 530                 wodPlayer_ProcessMessages(wwo);
 531                 if (wwo->lpPlayPtr) {
 532                     TRACE("recovering\n");
 533                     dwNextFeedTime = wodPlayer_FeedDSP(wwo);
 534                 }
 535             }
 536         } else {
 537             dwNextFeedTime = dwNextNotifyTime = INFINITE;
 538         }
 539     }
 540 }
 541
 542 /**************************************************************************
 543  *                      wodGetDevCaps                           [internal]
 544  */
 545 static DWORD wodGetDevCaps(WORD wDevID, LPWAVEOUTCAPSW lpCaps, DWORD dwSize)
 546 {
 547     TRACE("(%u, %p, %u);\n", wDevID, lpCaps, dwSize);
 548
 549     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
 550
 551     if (wDevID >= ALSA_WodNumDevs) {
 552         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 553         return MMSYSERR_BADDEVICEID;
 554     }
 555
 556     memcpy(lpCaps, &WOutDev[wDevID].outcaps, min(dwSize, sizeof(*lpCaps)));
 557     return MMSYSERR_NOERROR;
 558 }
 559
 560 /**************************************************************************
 561  *                              wodOpen                         [internal]
 562  */
 563 static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 564 {
 565     WINE_WAVEDEV*               wwo;
 566     snd_pcm_t *                 pcm = NULL;
 567     snd_hctl_t *                hctl = NULL;
 568     snd_pcm_hw_params_t *       hw_params = NULL;
 569     snd_pcm_sw_params_t *       sw_params;
 570     snd_pcm_access_t            access;
 571     snd_pcm_format_t            format = -1;
 572     unsigned int                rate;
 573     unsigned int                buffer_time = 500000;
 574     unsigned int                period_time = 10000;
 575     snd_pcm_uframes_t           buffer_size;
 576     snd_pcm_uframes_t           period_size;
 577     int                         flags;
 578     int                         err=0;
 579     int                         dir=0;
 580     DWORD                       retcode = 0;
 581
 582     snd_pcm_sw_params_alloca(&sw_params);
 583
 584     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 585     if (lpDesc == NULL) {
 586         WARN("Invalid Parameter !\n");
 587         return MMSYSERR_INVALPARAM;
 588     }
 589     if (wDevID >= ALSA_WodNumDevs) {
 590         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 591         return MMSYSERR_BADDEVICEID;
 592     }
 593
 594     /* only PCM format is supported so far... */
 595     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 596         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 597              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 598              lpDesc->lpFormat->nSamplesPerSec);
 599         return WAVERR_BADFORMAT;
 600     }
 601
 602     if (dwFlags & WAVE_FORMAT_QUERY) {
 603         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 604              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 605              lpDesc->lpFormat->nSamplesPerSec);
 606         return MMSYSERR_NOERROR;
 607     }
 608
 609     wwo = &WOutDev[wDevID];
 610
 611     if (wwo->pcm != NULL) {
 612         WARN("%d already allocated\n", wDevID);
 613         return MMSYSERR_ALLOCATED;
 614     }
 615
 616     if (dwFlags & WAVE_DIRECTSOUND)
 617         FIXME("Why are we called with DirectSound flag? It doesn't use MMSYSTEM any more\n");
 618         /* not supported, ignore it */
 619     dwFlags &= ~WAVE_DIRECTSOUND;
 620
 621     flags = SND_PCM_NONBLOCK;
 622
 623     if ( (err = snd_pcm_open(&pcm, wwo->pcmname, SND_PCM_STREAM_PLAYBACK, flags)) < 0)
 624     {
 625         ERR("Error open: %s\n", snd_strerror(err));
 626         return MMSYSERR_NOTENABLED;
 627     }
 628
 629     if (wwo->ctlname)
 630     {
 631         err = snd_hctl_open(&hctl, wwo->ctlname, 0);
 632         if (err >= 0)
 633         {
 634             snd_hctl_load(hctl);
 635         }
 636         else
 637         {
 638             WARN("Could not open hctl for [%s]: %s\n", wwo->ctlname, snd_strerror(err));
 639             hctl = NULL;
 640         }
 641     }
 642
 643     wwo->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 644
 645     memcpy(&wwo->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
 646     ALSA_copyFormat(lpDesc->lpFormat, &wwo->format);
 647
 648     TRACE("Requested this format: %dx%dx%d %s\n",
 649           wwo->format.Format.nSamplesPerSec,
 650           wwo->format.Format.wBitsPerSample,
 651           wwo->format.Format.nChannels,
 652           ALSA_getFormat(wwo->format.Format.wFormatTag));
 653
 654     if (wwo->format.Format.wBitsPerSample == 0) {
 655         WARN("Resetting zeroed wBitsPerSample\n");
 656         wwo->format.Format.wBitsPerSample = 8 *
 657             (wwo->format.Format.nAvgBytesPerSec /
 658              wwo->format.Format.nSamplesPerSec) /
 659             wwo->format.Format.nChannels;
 660     }
 661
 662 #define EXIT_ON_ERROR(f,e,txt) do \
 663 { \
 664     int err; \
 665     if ( (err = (f) ) < 0) \
 666     { \
 667         WARN(txt ": %s\n", snd_strerror(err)); \
 668         retcode=e; \
 669         goto errexit; \
 670     } \
 671 } while(0)
 672
 673     snd_pcm_hw_params_malloc(&hw_params);
 674     if (! hw_params)
 675     {
 676         retcode = MMSYSERR_NOMEM;
 677         goto errexit;
 678     }
 679     snd_pcm_hw_params_any(pcm, hw_params);
 680
 681     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
 682     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
 683         WARN("mmap not available. switching to standard write.\n");
 684         access = SND_PCM_ACCESS_RW_INTERLEAVED;
 685         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
 686         wwo->write = snd_pcm_writei;
 687     }
 688     else
 689         wwo->write = snd_pcm_mmap_writei;
 690
 691     if ((err = snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels)) < 0) {
 692         WARN("unable to set required channels: %d\n", wwo->format.Format.nChannels);
 693         EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels ), WAVERR_BADFORMAT, "unable to set required channels" );
 694     }
 695
 696     if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
 697         ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 698         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
 699         format = (wwo->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
 700                  (wwo->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
 701                  (wwo->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
 702                  (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
 703     } else if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 704         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
 705         format = (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
 706     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
 707         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
 708         retcode = WAVERR_BADFORMAT;
 709         goto errexit;
 710     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
 711         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
 712         retcode = WAVERR_BADFORMAT;
 713         goto errexit;
 714     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
 715         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
 716         retcode = WAVERR_BADFORMAT;
 717         goto errexit;
 718     } else {
 719         ERR("invalid format: %0x04x\n", wwo->format.Format.wFormatTag);
 720         retcode = WAVERR_BADFORMAT;
 721         goto errexit;
 722     }
 723
 724     if ((err = snd_pcm_hw_params_set_format(pcm, hw_params, format)) < 0) {
 725         WARN("unable to set required format: %s\n", snd_pcm_format_name(format));
 726         EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format" );
 727     }
 728
 729     rate = wwo->format.Format.nSamplesPerSec;
 730     dir=0;
 731     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
 732     if (err < 0) {
 733         WARN("Rate %d Hz not available for playback: %s\n", wwo->format.Format.nSamplesPerSec, snd_strerror(rate));
 734         retcode = WAVERR_BADFORMAT;
 735         goto errexit;
 736     }
 737     if (!ALSA_NearMatch(rate, wwo->format.Format.nSamplesPerSec)) {
 738         WARN("Rate doesn't match (requested %d Hz, got %d Hz)\n", wwo->format.Format.nSamplesPerSec, rate);
 739         retcode = WAVERR_BADFORMAT;
 740         goto errexit;
 741     }
 742
 743     TRACE("Got this format: %dx%dx%d %s\n",
 744           wwo->format.Format.nSamplesPerSec,
 745           wwo->format.Format.wBitsPerSample,
 746           wwo->format.Format.nChannels,
 747           ALSA_getFormat(wwo->format.Format.wFormatTag));
 748
 749     dir=0;
 750     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
 751     dir=0;
 752     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
 753
 754     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
 755
 756     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
 757     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
 758
 759     snd_pcm_sw_params_current(pcm, sw_params);
 760     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set start threshold");
 761     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
 762     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
 763     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
 764     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
 765     EXIT_ON_ERROR( snd_pcm_sw_params_set_xrun_mode(pcm, sw_params, SND_PCM_XRUN_NONE), MMSYSERR_ERROR, "unable to set xrun mode");
 766     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
 767 #undef EXIT_ON_ERROR
 768
 769     snd_pcm_prepare(pcm);
 770
 771     if (TRACE_ON(wave))
 772         ALSA_TraceParameters(hw_params, sw_params, FALSE);
 773
 774     /* now, we can save all required data for later use... */
 775
 776     wwo->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 777     wwo->lpQueuePtr = wwo->lpPlayPtr = wwo->lpLoopPtr = NULL;
 778     wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
 779     wwo->dwPartialOffset = 0;
 780
 781     ALSA_InitRingMessage(&wwo->msgRing);
 782
 783     wwo->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 784     wwo->hThread = CreateThread(NULL, 0, wodPlayer, (LPVOID)(DWORD)wDevID, 0, &(wwo->dwThreadID));
 785     if (wwo->hThread)
 786         SetThreadPriority(wwo->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 787     else
 788     {
 789         ERR("Thread creation for the wodPlayer failed!\n");
 790         CloseHandle(wwo->hStartUpEvent);
 791         retcode = MMSYSERR_NOMEM;
 792         goto errexit;
 793     }
 794     WaitForSingleObject(wwo->hStartUpEvent, INFINITE);
 795     CloseHandle(wwo->hStartUpEvent);
 796     wwo->hStartUpEvent = INVALID_HANDLE_VALUE;
 797
 798     TRACE("handle=%p\n", pcm);
 799     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 800           wwo->format.Format.wBitsPerSample, wwo->format.Format.nAvgBytesPerSec,
 801           wwo->format.Format.nSamplesPerSec, wwo->format.Format.nChannels,
 802           wwo->format.Format.nBlockAlign);
 803
 804     wwo->pcm = pcm;
 805     wwo->hctl = hctl;
 806     if ( wwo->hw_params )
 807         snd_pcm_hw_params_free(wwo->hw_params);
 808     wwo->hw_params = hw_params;
 809
 810     return wodNotifyClient(wwo, WOM_OPEN, 0L, 0L);
 811
 812 errexit:
 813     if (pcm)
 814         snd_pcm_close(pcm);
 815
 816     if (hctl)
 817     {
 818         snd_hctl_free(hctl);
 819         snd_hctl_close(hctl);
 820     }
 821
 822     if ( hw_params )
 823         snd_pcm_hw_params_free(hw_params);
 824
 825     if (wwo->msgRing.ring_buffer_size > 0)
 826         ALSA_DestroyRingMessage(&wwo->msgRing);
 827
 828     return retcode;
 829 }
 830
 831
 832 /**************************************************************************
 833  *                              wodClose                        [internal]
 834  */
 835 static DWORD wodClose(WORD wDevID)
 836 {
 837     DWORD               ret = MMSYSERR_NOERROR;
 838     WINE_WAVEDEV*       wwo;
 839
 840     TRACE("(%u);\n", wDevID);
 841
 842     if (wDevID >= ALSA_WodNumDevs) {
 843         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 844         return MMSYSERR_BADDEVICEID;
 845     }
 846
 847     if (WOutDev[wDevID].pcm == NULL) {
 848         WARN("Requested to close already closed device %d!\n", wDevID);
 849         return MMSYSERR_BADDEVICEID;
 850     }
 851
 852     wwo = &WOutDev[wDevID];
 853     if (wwo->lpQueuePtr) {
 854         WARN("buffers still playing !\n");
 855         ret = WAVERR_STILLPLAYING;
 856     } else {
 857         if (wwo->hThread != INVALID_HANDLE_VALUE) {
 858             ALSA_AddRingMessage(&wwo->msgRing, WINE_WM_CLOSING, 0, TRUE);
 859         }
 860         ALSA_DestroyRingMessage(&wwo->msgRing);
 861
 862         if (wwo->hw_params)
 863             snd_pcm_hw_params_free(wwo->hw_params);
 864         wwo->hw_params = NULL;
 865
 866         if (wwo->pcm)
 867             snd_pcm_close(wwo->pcm);
 868         wwo->pcm = NULL;
 869
 870         if (wwo->hctl)
 871         {
 872             snd_hctl_free(wwo->hctl);
 873             snd_hctl_close(wwo->hctl);
 874         }
 875         wwo->hctl = NULL;
 876
 877         ret = wodNotifyClient(wwo, WOM_CLOSE, 0L, 0L);
 878     }
 879
 880     return ret;
 881 }
 882
 883
 884 /**************************************************************************
 885  *                              wodWrite                        [internal]
 886  *
 887  */
 888 static DWORD wodWrite(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 889 {
 890     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 891
 892     if (wDevID >= ALSA_WodNumDevs) {
 893         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 894         return MMSYSERR_BADDEVICEID;
 895     }
 896
 897     if (WOutDev[wDevID].pcm == NULL) {
 898         WARN("Requested to write to closed device %d!\n", wDevID);
 899         return MMSYSERR_BADDEVICEID;
 900     }
 901
 902     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
 903         return WAVERR_UNPREPARED;
 904
 905     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
 906         return WAVERR_STILLPLAYING;
 907
 908     lpWaveHdr->dwFlags &= ~WHDR_DONE;
 909     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
 910     lpWaveHdr->lpNext = 0;
 911
 912     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
 913
 914     return MMSYSERR_NOERROR;
 915 }
 916
 917 /**************************************************************************
 918  *                      wodPause                                [internal]
 919  */
 920 static DWORD wodPause(WORD wDevID)
 921 {
 922     TRACE("(%u);!\n", wDevID);
 923
 924     if (wDevID >= ALSA_WodNumDevs) {
 925         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 926         return MMSYSERR_BADDEVICEID;
 927     }
 928
 929     if (WOutDev[wDevID].pcm == NULL) {
 930         WARN("Requested to pause closed device %d!\n", wDevID);
 931         return MMSYSERR_BADDEVICEID;
 932     }
 933
 934     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_PAUSING, 0, TRUE);
 935
 936     return MMSYSERR_NOERROR;
 937 }
 938
 939 /**************************************************************************
 940  *                      wodRestart                              [internal]
 941  */
 942 static DWORD wodRestart(WORD wDevID)
 943 {
 944     TRACE("(%u);\n", wDevID);
 945
 946     if (wDevID >= ALSA_WodNumDevs) {
 947         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 948         return MMSYSERR_BADDEVICEID;
 949     }
 950
 951     if (WOutDev[wDevID].pcm == NULL) {
 952         WARN("Requested to restart closed device %d!\n", wDevID);
 953         return MMSYSERR_BADDEVICEID;
 954     }
 955
 956     if (WOutDev[wDevID].state == WINE_WS_PAUSED) {
 957         ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESTARTING, 0, TRUE);
 958     }
 959
 960     /* FIXME: is NotifyClient with WOM_DONE right ? (Comet Busters 1.3.3 needs this notification) */
 961     /* FIXME: Myst crashes with this ... hmm -MM
 962        return wodNotifyClient(wwo, WOM_DONE, 0L, 0L);
 963     */
 964
 965     return MMSYSERR_NOERROR;
 966 }
 967
 968 /**************************************************************************
 969  *                      wodReset                                [internal]
 970  */
 971 static DWORD wodReset(WORD wDevID)
 972 {
 973     TRACE("(%u);\n", wDevID);
 974
 975     if (wDevID >= ALSA_WodNumDevs) {
 976         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
 977         return MMSYSERR_BADDEVICEID;
 978     }
 979
 980     if (WOutDev[wDevID].pcm == NULL) {
 981         WARN("Requested to reset closed device %d!\n", wDevID);
 982         return MMSYSERR_BADDEVICEID;
 983     }
 984
 985     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
 986
 987     return MMSYSERR_NOERROR;
 988 }
 989
 990 /**************************************************************************
 991  *                              wodGetPosition                  [internal]
 992  */
 993 static DWORD wodGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
 994 {
 995     WINE_WAVEDEV*       wwo;
 996
 997     TRACE("(%u, %p, %u);\n", wDevID, lpTime, uSize);
 998
 999     if (wDevID >= ALSA_WodNumDevs) {
1000         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1001         return MMSYSERR_BADDEVICEID;
1002     }
1003
1004     if (WOutDev[wDevID].pcm == NULL) {
1005         WARN("Requested to get position of closed device %d!\n", wDevID);
1006         return MMSYSERR_BADDEVICEID;
1007     }
1008
1009     if (lpTime == NULL) return MMSYSERR_INVALPARAM;
1010
1011     wwo = &WOutDev[wDevID];
1012     return ALSA_bytes_to_mmtime(lpTime, wwo->dwPlayedTotal, &wwo->format);
1013 }
1014
1015 /**************************************************************************
1016  *                              wodBreakLoop                    [internal]
1017  */
1018 static DWORD wodBreakLoop(WORD wDevID)
1019 {
1020     TRACE("(%u);\n", wDevID);
1021
1022     if (wDevID >= ALSA_WodNumDevs) {
1023         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1024         return MMSYSERR_BADDEVICEID;
1025     }
1026
1027     if (WOutDev[wDevID].pcm == NULL) {
1028         WARN("Requested to breakloop of closed device %d!\n", wDevID);
1029         return MMSYSERR_BADDEVICEID;
1030     }
1031
1032     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_BREAKLOOP, 0, TRUE);
1033     return MMSYSERR_NOERROR;
1034 }
1035
1036 /**************************************************************************
1037  *                              wodGetVolume                    [internal]
1038  */
1039 static DWORD wodGetVolume(WORD wDevID, LPDWORD lpdwVol)
1040 {
1041     WORD               wleft, wright;
1042     WINE_WAVEDEV*      wwo;
1043     int                min, max;
1044     int                left, right;
1045     DWORD              rc;
1046
1047     TRACE("(%u, %p);\n", wDevID, lpdwVol);
1048     if (wDevID >= ALSA_WodNumDevs) {
1049         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1050         return MMSYSERR_BADDEVICEID;
1051     }
1052
1053     if (lpdwVol == NULL)
1054         return MMSYSERR_NOTENABLED;
1055
1056     wwo = &WOutDev[wDevID];
1057
1058     if (lpdwVol == NULL)
1059         return MMSYSERR_NOTENABLED;
1060
1061     rc = ALSA_CheckSetVolume(wwo->hctl, &left, &right, &min, &max, NULL, NULL, NULL);
1062     if (rc == MMSYSERR_NOERROR)
1063     {
1064 #define VOLUME_ALSA_TO_WIN(x) (  ( (((x)-min) * 65535) + (max-min)/2 ) /(max-min))
1065         wleft = VOLUME_ALSA_TO_WIN(left);
1066         wright = VOLUME_ALSA_TO_WIN(right);
1067 #undef VOLUME_ALSA_TO_WIN
1068         TRACE("left=%d,right=%d,converted to windows left %d, right %d\n", left, right, wleft, wright);
1069         *lpdwVol = MAKELONG( wleft, wright );
1070     }
1071     else
1072         TRACE("CheckSetVolume failed; rc %d\n", rc);
1073
1074     return rc;
1075 }
1076
1077 /**************************************************************************
1078  *                              wodSetVolume                    [internal]
1079  */
1080 DWORD wodSetVolume(WORD wDevID, DWORD dwParam)
1081 {
1082     WORD               wleft, wright;
1083     WINE_WAVEDEV*      wwo;
1084     int                min, max;
1085     int                left, right;
1086     DWORD              rc;
1087
1088     TRACE("(%u, %08X);\n", wDevID, dwParam);
1089     if (wDevID >= ALSA_WodNumDevs) {
1090         TRACE("Asked for device %d, but only %d known!\n", wDevID, ALSA_WodNumDevs);
1091         return MMSYSERR_BADDEVICEID;
1092     }
1093
1094     wwo = &WOutDev[wDevID];
1095
1096     rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, &min, &max, NULL, NULL, NULL);
1097     if (rc == MMSYSERR_NOERROR)
1098     {
1099         wleft  = LOWORD(dwParam);
1100         wright = HIWORD(dwParam);
1101 #define VOLUME_WIN_TO_ALSA(x) ( (  ( ((x) * (max-min)) + 32767) / 65535) + min )
1102         left = VOLUME_WIN_TO_ALSA(wleft);
1103         right = VOLUME_WIN_TO_ALSA(wright);
1104 #undef VOLUME_WIN_TO_ALSA
1105         rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, NULL, NULL, NULL, &left, &right);
1106         if (rc == MMSYSERR_NOERROR)
1107             TRACE("set volume:  wleft=%d, wright=%d, converted to alsa left %d, right %d\n", wleft, wright, left, right);
1108         else
1109             TRACE("SetVolume failed; rc %d\n", rc);
1110     }
1111
1112     return rc;
1113 }
1114
1115 /**************************************************************************
1116  *                              wodGetNumDevs                   [internal]
1117  */
1118 static  DWORD   wodGetNumDevs(void)
1119 {
1120     return ALSA_WodNumDevs;
1121 }
1122
1123 /**************************************************************************
1124  *                              wodDevInterfaceSize             [internal]
1125  */
1126 static DWORD wodDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
1127 {
1128     TRACE("(%u, %p)\n", wDevID, dwParam1);
1129
1130     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
1131                                     NULL, 0 ) * sizeof(WCHAR);
1132     return MMSYSERR_NOERROR;
1133 }
1134
1135 /**************************************************************************
1136  *                              wodDevInterface                 [internal]
1137  */
1138 static DWORD wodDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
1139 {
1140     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
1141                                         NULL, 0 ) * sizeof(WCHAR))
1142     {
1143         MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
1144                             dwParam1, dwParam2 / sizeof(WCHAR));
1145         return MMSYSERR_NOERROR;
1146     }
1147     return MMSYSERR_INVALPARAM;
1148 }
1149
1150 /**************************************************************************
1151  *                              wodMessage (WINEALSA.@)
1152  */
1153 DWORD WINAPI ALSA_wodMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
1154                              DWORD dwParam1, DWORD dwParam2)
1155 {
1156     TRACE("(%u, %s, %08X, %08X, %08X);\n",
1157           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
1158
1159     switch (wMsg) {
1160     case DRVM_INIT:
1161     case DRVM_EXIT:
1162     case DRVM_ENABLE:
1163     case DRVM_DISABLE:
1164         /* FIXME: Pretend this is supported */
1165         return 0;
1166     case WODM_OPEN:             return wodOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
1167     case WODM_CLOSE:            return wodClose         (wDevID);
1168     case WODM_GETDEVCAPS:       return wodGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
1169     case WODM_GETNUMDEVS:       return wodGetNumDevs    ();
1170     case WODM_GETPITCH:         return MMSYSERR_NOTSUPPORTED;
1171     case WODM_SETPITCH:         return MMSYSERR_NOTSUPPORTED;
1172     case WODM_GETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
1173     case WODM_SETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
1174     case WODM_WRITE:            return wodWrite         (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
1175     case WODM_PAUSE:            return wodPause         (wDevID);
1176     case WODM_GETPOS:           return wodGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
1177     case WODM_BREAKLOOP:        return wodBreakLoop     (wDevID);
1178     case WODM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
1179     case WODM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
1180     case WODM_GETVOLUME:        return wodGetVolume     (wDevID, (LPDWORD)dwParam1);
1181     case WODM_SETVOLUME:        return wodSetVolume     (wDevID, dwParam1);
1182     case WODM_RESTART:          return wodRestart       (wDevID);
1183     case WODM_RESET:            return wodReset         (wDevID);
1184     case DRV_QUERYDEVICEINTERFACESIZE: return wodDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
1185     case DRV_QUERYDEVICEINTERFACE:     return wodDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
1186     case DRV_QUERYDSOUNDIFACE:  return wodDsCreate      (wDevID, (PIDSDRIVER*)dwParam1);
1187     case DRV_QUERYDSOUNDDESC:   return wodDsDesc        (wDevID, (PDSDRIVERDESC)dwParam1);
1188
1189     default:
1190         FIXME("unknown message %d!\n", wMsg);
1191     }
1192     return MMSYSERR_NOTSUPPORTED;
1193 }
1194
1195 #else /* HAVE_ALSA */
1196
1197 /**************************************************************************
1198  *                              wodMessage (WINEALSA.@)
1199  */
1200 DWORD WINAPI ALSA_wodMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
1201                              DWORD dwParam1, DWORD dwParam2)
1202 {
1203     FIXME("(%u, %04X, %08X, %08X, %08X):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
1204     return MMSYSERR_NOTENABLED;
1205 }
1206
1207 #endif /* HAVE_ALSA */