dlls/winealsa.drv/wavein.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 IN 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 #include "wine/library.h"
  57 #include "wine/unicode.h"
  58 #include "wine/debug.h"
  59
  60 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  61
  62 #ifdef HAVE_ALSA
  63
  64 WINE_WAVEDEV    *WInDev;
  65 DWORD            ALSA_WidNumMallocedDevs;
  66 DWORD            ALSA_WidNumDevs;
  67
  68 /**************************************************************************
  69 *                       widNotifyClient                 [internal]
  70 */
  71 static DWORD widNotifyClient(WINE_WAVEDEV* wwi, WORD wMsg, DWORD dwParam1, DWORD dwParam2)
  72 {
  73    TRACE("wMsg = 0x%04x dwParm1 = %04X dwParam2 = %04X\n", wMsg, dwParam1, dwParam2);
  74
  75    switch (wMsg) {
  76    case WIM_OPEN:
  77    case WIM_CLOSE:
  78    case WIM_DATA:
  79        if (wwi->wFlags != DCB_NULL &&
  80            !DriverCallback(wwi->waveDesc.dwCallback, wwi->wFlags, (HDRVR)wwi->waveDesc.hWave,
  81                            wMsg, wwi->waveDesc.dwInstance, dwParam1, dwParam2)) {
  82            WARN("can't notify client !\n");
  83            return MMSYSERR_ERROR;
  84        }
  85        break;
  86    default:
  87        FIXME("Unknown callback message %u\n", wMsg);
  88        return MMSYSERR_INVALPARAM;
  89    }
  90    return MMSYSERR_NOERROR;
  91 }
  92
  93 /**************************************************************************
  94  *                      widGetDevCaps                           [internal]
  95  */
  96 static DWORD widGetDevCaps(WORD wDevID, LPWAVEINCAPSW lpCaps, DWORD dwSize)
  97 {
  98     TRACE("(%u, %p, %u);\n", wDevID, lpCaps, dwSize);
  99
 100     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
 101
 102     if (wDevID >= ALSA_WidNumDevs) {
 103         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 104         return MMSYSERR_BADDEVICEID;
 105     }
 106
 107     memcpy(lpCaps, &WInDev[wDevID].incaps, min(dwSize, sizeof(*lpCaps)));
 108     return MMSYSERR_NOERROR;
 109 }
 110
 111 /**************************************************************************
 112  *                              widRecorder_ReadHeaders         [internal]
 113  */
 114 static void widRecorder_ReadHeaders(WINE_WAVEDEV * wwi)
 115 {
 116     enum win_wm_message tmp_msg;
 117     DWORD               tmp_param;
 118     HANDLE              tmp_ev;
 119     WAVEHDR*            lpWaveHdr;
 120
 121     while (ALSA_RetrieveRingMessage(&wwi->msgRing, &tmp_msg, &tmp_param, &tmp_ev)) {
 122         if (tmp_msg == WINE_WM_HEADER) {
 123             LPWAVEHDR*  wh;
 124             lpWaveHdr = (LPWAVEHDR)tmp_param;
 125             lpWaveHdr->lpNext = 0;
 126
 127             if (wwi->lpQueuePtr == 0)
 128                 wwi->lpQueuePtr = lpWaveHdr;
 129             else {
 130                 for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 131                 *wh = lpWaveHdr;
 132             }
 133         } else {
 134             ERR("should only have headers left\n");
 135         }
 136     }
 137 }
 138
 139 /**************************************************************************
 140  *                              widRecorder                     [internal]
 141  */
 142 static  DWORD   CALLBACK        widRecorder(LPVOID pmt)
 143 {
 144     WORD                uDevID = (DWORD)pmt;
 145     WINE_WAVEDEV*       wwi = (WINE_WAVEDEV*)&WInDev[uDevID];
 146     WAVEHDR*            lpWaveHdr;
 147     DWORD               dwSleepTime;
 148     DWORD               bytesRead;
 149     LPVOID              buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, wwi->dwPeriodSize);
 150     char               *pOffset = buffer;
 151     enum win_wm_message msg;
 152     DWORD               param;
 153     HANDLE              ev;
 154     DWORD               frames_per_period;
 155
 156     wwi->state = WINE_WS_STOPPED;
 157     InterlockedExchange((LONG*)&wwi->dwTotalRecorded, 0);
 158     wwi->lpQueuePtr = NULL;
 159
 160     SetEvent(wwi->hStartUpEvent);
 161
 162     /* make sleep time to be # of ms to output a period */
 163     dwSleepTime = (wwi->dwPeriodSize * 1000) / wwi->format.Format.nAvgBytesPerSec;
 164     frames_per_period = snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize);
 165     TRACE("sleeptime=%d ms, total buffer length=%d ms (%d bytes)\n", dwSleepTime, wwi->dwBufferSize * 1000 / wwi->format.Format.nAvgBytesPerSec, wwi->dwBufferSize);
 166
 167     for (;;) {
 168         /* wait for dwSleepTime or an event in thread's queue */
 169         /* FIXME: could improve wait time depending on queue state,
 170          * ie, number of queued fragments
 171          */
 172         if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING)
 173         {
 174             int periods;
 175             DWORD frames;
 176             DWORD bytes;
 177             DWORD read;
 178
 179             lpWaveHdr = wwi->lpQueuePtr;
 180             /* read all the fragments accumulated so far */
 181             frames = snd_pcm_avail_update(wwi->pcm);
 182             bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
 183
 184             TRACE("frames = %d  bytes = %d\n", frames, bytes);
 185             periods = bytes / wwi->dwPeriodSize;
 186             while ((periods > 0) && (wwi->lpQueuePtr))
 187             {
 188                 periods--;
 189                 bytes = wwi->dwPeriodSize;
 190                 TRACE("bytes = %d\n",bytes);
 191                 if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded >= wwi->dwPeriodSize)
 192                 {
 193                     /* directly read fragment in wavehdr */
 194                     read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames_per_period);
 195                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
 196
 197                     TRACE("bytesRead=%d (direct)\n", bytesRead);
 198                     if (read != (DWORD) -1)
 199                     {
 200                         /* update number of bytes recorded in current buffer and by this device */
 201                         lpWaveHdr->dwBytesRecorded += bytesRead;
 202                         InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, bytesRead);
 203
 204                         /* buffer is full. notify client */
 205                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
 206                         {
 207                             /* must copy the value of next waveHdr, because we have no idea of what
 208                              * will be done with the content of lpWaveHdr in callback
 209                              */
 210                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
 211
 212                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 213                             lpWaveHdr->dwFlags |=  WHDR_DONE;
 214
 215                             wwi->lpQueuePtr = lpNext;
 216                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 217                             lpWaveHdr = lpNext;
 218                         }
 219                     } else {
 220                         FIXME("read(%s, %p, %d) failed (%s)\n", wwi->pcmname,
 221                             lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
 222                             frames_per_period, snd_strerror(read));
 223                     }
 224                 }
 225                 else
 226                 {
 227                     /* read the fragment in a local buffer */
 228                     read = wwi->read(wwi->pcm, buffer, frames_per_period);
 229                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
 230                     pOffset = buffer;
 231
 232                     TRACE("bytesRead=%d (local)\n", bytesRead);
 233
 234                     if (read == (DWORD) -1) {
 235                         TRACE("read(%s, %p, %d) failed (%s)\n", wwi->pcmname,
 236                               buffer, frames_per_period, strerror(errno));
 237                         continue;
 238                     }
 239
 240                     /* copy data in client buffers */
 241                     while (read != (DWORD) -1 && bytesRead > 0)
 242                     {
 243                         DWORD dwToCopy = min (bytesRead, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
 244
 245                         memcpy(lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
 246                                pOffset,
 247                                dwToCopy);
 248
 249                         /* update number of bytes recorded in current buffer and by this device */
 250                         lpWaveHdr->dwBytesRecorded += dwToCopy;
 251                         InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, dwToCopy);
 252                         bytesRead -= dwToCopy;
 253                         pOffset   += dwToCopy;
 254
 255                         /* client buffer is full. notify client */
 256                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
 257                         {
 258                             /* must copy the value of next waveHdr, because we have no idea of what
 259                              * will be done with the content of lpWaveHdr in callback
 260                              */
 261                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
 262                             TRACE("lpNext=%p\n", lpNext);
 263
 264                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 265                             lpWaveHdr->dwFlags |=  WHDR_DONE;
 266
 267                             wwi->lpQueuePtr = lpNext;
 268                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 269
 270                             lpWaveHdr = lpNext;
 271                             if (!lpNext && bytesRead) {
 272                                 /* before we give up, check for more header messages */
 273                                 while (ALSA_PeekRingMessage(&wwi->msgRing, &msg, &param, &ev))
 274                                 {
 275                                     if (msg == WINE_WM_HEADER) {
 276                                         LPWAVEHDR hdr;
 277                                         ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev);
 278                                         hdr = ((LPWAVEHDR)param);
 279                                         TRACE("msg = %s, hdr = %p, ev = %p\n", ALSA_getCmdString(msg), hdr, ev);
 280                                         hdr->lpNext = 0;
 281                                         if (lpWaveHdr == 0) {
 282                                             /* new head of queue */
 283                                             wwi->lpQueuePtr = lpWaveHdr = hdr;
 284                                         } else {
 285                                             /* insert buffer at the end of queue */
 286                                             LPWAVEHDR*  wh;
 287                                             for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 288                                             *wh = hdr;
 289                                         }
 290                                     } else
 291                                         break;
 292                                 }
 293
 294                                 if (lpWaveHdr == 0) {
 295                                     /* no more buffer to copy data to, but we did read more.
 296                                      * what hasn't been copied will be dropped
 297                                      */
 298                                     WARN("buffer under run! %u bytes dropped.\n", bytesRead);
 299                                     wwi->lpQueuePtr = NULL;
 300                                     break;
 301                                 }
 302                             }
 303                         }
 304                     }
 305                 }
 306             }
 307         }
 308
 309         ALSA_WaitRingMessage(&wwi->msgRing, dwSleepTime);
 310
 311         while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev))
 312         {
 313             TRACE("msg=%s param=0x%x\n", ALSA_getCmdString(msg), param);
 314             switch (msg) {
 315             case WINE_WM_PAUSING:
 316                 wwi->state = WINE_WS_PAUSED;
 317                 /*FIXME("Device should stop recording\n");*/
 318                 SetEvent(ev);
 319                 break;
 320             case WINE_WM_STARTING:
 321                 wwi->state = WINE_WS_PLAYING;
 322                 snd_pcm_start(wwi->pcm);
 323                 SetEvent(ev);
 324                 break;
 325             case WINE_WM_HEADER:
 326                 lpWaveHdr = (LPWAVEHDR)param;
 327                 lpWaveHdr->lpNext = 0;
 328
 329                 /* insert buffer at the end of queue */
 330                 {
 331                     LPWAVEHDR*  wh;
 332                     for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 333                     *wh = lpWaveHdr;
 334                 }
 335                 break;
 336             case WINE_WM_STOPPING:
 337                 if (wwi->state != WINE_WS_STOPPED)
 338                 {
 339                     snd_pcm_drain(wwi->pcm);
 340
 341                     /* read any headers in queue */
 342                     widRecorder_ReadHeaders(wwi);
 343
 344                     /* return current buffer to app */
 345                     lpWaveHdr = wwi->lpQueuePtr;
 346                     if (lpWaveHdr)
 347                     {
 348                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
 349                         TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 350                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 351                         lpWaveHdr->dwFlags |= WHDR_DONE;
 352                         wwi->lpQueuePtr = lpNext;
 353                         widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 354                     }
 355                 }
 356                 wwi->state = WINE_WS_STOPPED;
 357                 SetEvent(ev);
 358                 break;
 359             case WINE_WM_RESETTING:
 360                 if (wwi->state != WINE_WS_STOPPED)
 361                 {
 362                     snd_pcm_drain(wwi->pcm);
 363                 }
 364                 wwi->state = WINE_WS_STOPPED;
 365                 wwi->dwTotalRecorded = 0;
 366
 367                 /* read any headers in queue */
 368                 widRecorder_ReadHeaders(wwi);
 369
 370                 /* return all buffers to the app */
 371                 for (lpWaveHdr = wwi->lpQueuePtr; lpWaveHdr; lpWaveHdr = lpWaveHdr->lpNext) {
 372                     TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 373                     lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 374                     lpWaveHdr->dwFlags |= WHDR_DONE;
 375                     wwi->lpQueuePtr = lpWaveHdr->lpNext;
 376                     widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 377                 }
 378
 379                 wwi->lpQueuePtr = NULL;
 380                 SetEvent(ev);
 381                 break;
 382             case WINE_WM_CLOSING:
 383                 wwi->hThread = 0;
 384                 wwi->state = WINE_WS_CLOSED;
 385                 SetEvent(ev);
 386                 HeapFree(GetProcessHeap(), 0, buffer);
 387                 ExitThread(0);
 388                 /* shouldn't go here */
 389             default:
 390                 FIXME("unknown message %d\n", msg);
 391                 break;
 392             }
 393         }
 394     }
 395     ExitThread(0);
 396     /* just for not generating compilation warnings... should never be executed */
 397     return 0;
 398 }
 399
 400 /**************************************************************************
 401  *                              widOpen                         [internal]
 402  */
 403 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 404 {
 405     WINE_WAVEDEV*               wwi;
 406     snd_pcm_hw_params_t *       hw_params;
 407     snd_pcm_sw_params_t *       sw_params;
 408     snd_pcm_access_t            access;
 409     snd_pcm_format_t            format;
 410     unsigned int                rate;
 411     unsigned int                buffer_time = 500000;
 412     unsigned int                period_time = 10000;
 413     snd_pcm_uframes_t           buffer_size;
 414     snd_pcm_uframes_t           period_size;
 415     int                         flags;
 416     snd_pcm_t *                 pcm;
 417     int                         err;
 418     int                         dir;
 419     DWORD                       ret;
 420
 421     /* JPW TODO - review this code */
 422     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 423     if (lpDesc == NULL) {
 424         WARN("Invalid Parameter !\n");
 425         return MMSYSERR_INVALPARAM;
 426     }
 427     if (wDevID >= ALSA_WidNumDevs) {
 428         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 429         return MMSYSERR_BADDEVICEID;
 430     }
 431
 432     /* only PCM format is supported so far... */
 433     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 434         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 435              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 436              lpDesc->lpFormat->nSamplesPerSec);
 437         return WAVERR_BADFORMAT;
 438     }
 439
 440     if (dwFlags & WAVE_FORMAT_QUERY) {
 441         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 442              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 443              lpDesc->lpFormat->nSamplesPerSec);
 444         return MMSYSERR_NOERROR;
 445     }
 446
 447     wwi = &WInDev[wDevID];
 448
 449     if (wwi->pcm != NULL) {
 450         WARN("already allocated\n");
 451         return MMSYSERR_ALLOCATED;
 452     }
 453
 454     wwi->pcm = 0;
 455     flags = SND_PCM_NONBLOCK;
 456
 457     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
 458     {
 459         ERR("Error open: %s\n", snd_strerror(err));
 460         return MMSYSERR_NOTENABLED;
 461     }
 462
 463     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 464
 465     memcpy(&wwi->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
 466     ALSA_copyFormat(lpDesc->lpFormat, &wwi->format);
 467
 468     if (wwi->format.Format.wBitsPerSample == 0) {
 469         WARN("Resetting zeroed wBitsPerSample\n");
 470         wwi->format.Format.wBitsPerSample = 8 *
 471             (wwi->format.Format.nAvgBytesPerSec /
 472              wwi->format.Format.nSamplesPerSec) /
 473             wwi->format.Format.nChannels;
 474     }
 475
 476     hw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_hw_params_sizeof() );
 477     sw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof() );
 478
 479     snd_pcm_hw_params_any(pcm, hw_params);
 480
 481 #define EXIT_ON_ERROR(f,e,txt) do \
 482 { \
 483     int err; \
 484     if ( (err = (f) ) < 0) \
 485     { \
 486         WARN(txt ": %s\n", snd_strerror(err)); \
 487         ret = (e); \
 488         goto error; \
 489     } \
 490 } while(0)
 491
 492     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
 493     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
 494         WARN("mmap not available. switching to standard write.\n");
 495         access = SND_PCM_ACCESS_RW_INTERLEAVED;
 496         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
 497         wwi->read = snd_pcm_readi;
 498     }
 499     else
 500         wwi->read = snd_pcm_mmap_readi;
 501
 502     EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwi->format.Format.nChannels), WAVERR_BADFORMAT, "unable to set required channels");
 503
 504     if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
 505         ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 506         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
 507         format = (wwi->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
 508                  (wwi->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
 509                  (wwi->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_3LE :
 510                  (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
 511     } else if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 512         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
 513         format = (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
 514     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
 515         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
 516         ret = WAVERR_BADFORMAT;
 517         goto error;
 518     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
 519         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
 520         ret = WAVERR_BADFORMAT;
 521         goto error;
 522     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
 523         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
 524         ret = WAVERR_BADFORMAT;
 525         goto error;
 526     } else {
 527         ERR("invalid format: %0x04x\n", wwi->format.Format.wFormatTag);
 528         ret = WAVERR_BADFORMAT;
 529         goto error;
 530     }
 531
 532     EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format");
 533
 534     rate = wwi->format.Format.nSamplesPerSec;
 535     dir = 0;
 536     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
 537     if (err < 0) {
 538         WARN("Rate %d Hz not available for playback: %s\n", wwi->format.Format.nSamplesPerSec, snd_strerror(rate));
 539         ret = WAVERR_BADFORMAT;
 540         goto error;
 541     }
 542     if (!ALSA_NearMatch(rate, wwi->format.Format.nSamplesPerSec)) {
 543         WARN("Rate doesn't match (requested %d Hz, got %d Hz)\n", wwi->format.Format.nSamplesPerSec, rate);
 544         ret = WAVERR_BADFORMAT;
 545         goto error;
 546     }
 547
 548     dir=0;
 549     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
 550     dir=0;
 551     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
 552
 553     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
 554
 555     dir=0;
 556     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
 557     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
 558
 559     snd_pcm_sw_params_current(pcm, sw_params);
 560     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set start threshold");
 561     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
 562     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
 563     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
 564     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
 565     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
 566 #undef EXIT_ON_ERROR
 567
 568     snd_pcm_prepare(pcm);
 569
 570     if (TRACE_ON(wave))
 571         ALSA_TraceParameters(hw_params, sw_params, FALSE);
 572
 573     /* now, we can save all required data for later use... */
 574     if ( wwi->hw_params )
 575         snd_pcm_hw_params_free(wwi->hw_params);
 576     snd_pcm_hw_params_malloc(&(wwi->hw_params));
 577     snd_pcm_hw_params_copy(wwi->hw_params, hw_params);
 578
 579     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 580     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
 581     wwi->pcm = pcm;
 582
 583     ALSA_InitRingMessage(&wwi->msgRing);
 584
 585     wwi->dwPeriodSize = snd_pcm_frames_to_bytes(pcm, period_size);
 586     TRACE("dwPeriodSize=%u\n", wwi->dwPeriodSize);
 587     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 588           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
 589           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
 590           wwi->format.Format.nBlockAlign);
 591
 592     wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 593     wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD)wDevID, 0, &(wwi->dwThreadID));
 594     if (wwi->hThread)
 595         SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 596     WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
 597     CloseHandle(wwi->hStartUpEvent);
 598     wwi->hStartUpEvent = INVALID_HANDLE_VALUE;
 599
 600     HeapFree( GetProcessHeap(), 0, hw_params );
 601     HeapFree( GetProcessHeap(), 0, sw_params );
 602     return widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
 603
 604 error:
 605     snd_pcm_close(pcm);
 606     HeapFree( GetProcessHeap(), 0, hw_params );
 607     HeapFree( GetProcessHeap(), 0, sw_params );
 608     return ret;
 609 }
 610
 611
 612 /**************************************************************************
 613  *                              widClose                        [internal]
 614  */
 615 static DWORD widClose(WORD wDevID)
 616 {
 617     DWORD               ret = MMSYSERR_NOERROR;
 618     WINE_WAVEDEV*       wwi;
 619
 620     TRACE("(%u);\n", wDevID);
 621
 622     if (wDevID >= ALSA_WidNumDevs) {
 623         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 624         return MMSYSERR_BADDEVICEID;
 625     }
 626
 627     if (WInDev[wDevID].pcm == NULL) {
 628         WARN("Requested to close already closed device %d!\n", wDevID);
 629         return MMSYSERR_BADDEVICEID;
 630     }
 631
 632     wwi = &WInDev[wDevID];
 633     if (wwi->lpQueuePtr) {
 634         WARN("buffers still playing !\n");
 635         ret = WAVERR_STILLPLAYING;
 636     } else {
 637         if (wwi->hThread != INVALID_HANDLE_VALUE) {
 638             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
 639         }
 640         ALSA_DestroyRingMessage(&wwi->msgRing);
 641
 642         snd_pcm_hw_params_free(wwi->hw_params);
 643         wwi->hw_params = NULL;
 644
 645         snd_pcm_close(wwi->pcm);
 646         wwi->pcm = NULL;
 647
 648         ret = widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
 649     }
 650
 651     return ret;
 652 }
 653
 654 /**************************************************************************
 655  *                              widAddBuffer                    [internal]
 656  *
 657  */
 658 static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 659 {
 660     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 661
 662     /* first, do the sanity checks... */
 663     if (wDevID >= ALSA_WidNumDevs) {
 664         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 665         return MMSYSERR_BADDEVICEID;
 666     }
 667
 668     if (WInDev[wDevID].pcm == NULL) {
 669         WARN("Requested to add buffer to already closed device %d!\n", wDevID);
 670         return MMSYSERR_BADDEVICEID;
 671     }
 672
 673     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
 674         return WAVERR_UNPREPARED;
 675
 676     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
 677         return WAVERR_STILLPLAYING;
 678
 679     lpWaveHdr->dwFlags &= ~WHDR_DONE;
 680     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
 681     lpWaveHdr->lpNext = 0;
 682
 683     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
 684
 685     return MMSYSERR_NOERROR;
 686 }
 687
 688 /**************************************************************************
 689  *                              widStart                        [internal]
 690  *
 691  */
 692 static DWORD widStart(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 693 {
 694     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 695
 696     /* first, do the sanity checks... */
 697     if (wDevID >= ALSA_WidNumDevs) {
 698         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 699         return MMSYSERR_BADDEVICEID;
 700     }
 701
 702     if (WInDev[wDevID].pcm == NULL) {
 703         WARN("Requested to start closed device %d!\n", wDevID);
 704         return MMSYSERR_BADDEVICEID;
 705     }
 706
 707     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STARTING, 0, TRUE);
 708
 709     return MMSYSERR_NOERROR;
 710 }
 711
 712 /**************************************************************************
 713  *                              widStop                 [internal]
 714  *
 715  */
 716 static DWORD widStop(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 717 {
 718     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 719
 720     /* first, do the sanity checks... */
 721     if (wDevID >= ALSA_WidNumDevs) {
 722         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 723         return MMSYSERR_BADDEVICEID;
 724     }
 725
 726     if (WInDev[wDevID].pcm == NULL) {
 727         WARN("Requested to stop closed device %d!\n", wDevID);
 728         return MMSYSERR_BADDEVICEID;
 729     }
 730
 731     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STOPPING, 0, TRUE);
 732
 733     return MMSYSERR_NOERROR;
 734 }
 735
 736 /**************************************************************************
 737  *                      widReset                                [internal]
 738  */
 739 static DWORD widReset(WORD wDevID)
 740 {
 741     TRACE("(%u);\n", wDevID);
 742     if (wDevID >= ALSA_WidNumDevs) {
 743         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 744         return MMSYSERR_BADDEVICEID;
 745     }
 746
 747     if (WInDev[wDevID].pcm == NULL) {
 748         WARN("Requested to reset closed device %d!\n", wDevID);
 749         return MMSYSERR_BADDEVICEID;
 750     }
 751
 752     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
 753     return MMSYSERR_NOERROR;
 754 }
 755
 756 /**************************************************************************
 757  *                              widGetPosition                  [internal]
 758  */
 759 static DWORD widGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
 760 {
 761     WINE_WAVEDEV*       wwi;
 762
 763     TRACE("(%u, %p, %u);\n", wDevID, lpTime, uSize);
 764
 765     if (wDevID >= ALSA_WidNumDevs) {
 766         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 767         return MMSYSERR_BADDEVICEID;
 768     }
 769
 770     if (WInDev[wDevID].state == WINE_WS_CLOSED) {
 771         WARN("Requested position of closed device %d!\n", wDevID);
 772         return MMSYSERR_BADDEVICEID;
 773     }
 774
 775     if (lpTime == NULL) {
 776         WARN("invalid parameter: lpTime = NULL\n");
 777         return MMSYSERR_INVALPARAM;
 778     }
 779
 780     wwi = &WInDev[wDevID];
 781     return ALSA_bytes_to_mmtime(lpTime, wwi->dwTotalRecorded, &wwi->format);
 782 }
 783
 784 /**************************************************************************
 785  *                              widGetNumDevs                   [internal]
 786  */
 787 static  DWORD   widGetNumDevs(void)
 788 {
 789     return ALSA_WidNumDevs;
 790 }
 791
 792 /**************************************************************************
 793  *                              widDevInterfaceSize             [internal]
 794  */
 795 static DWORD widDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
 796 {
 797     TRACE("(%u, %p)\n", wDevID, dwParam1);
 798
 799     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 800                                     NULL, 0 ) * sizeof(WCHAR);
 801     return MMSYSERR_NOERROR;
 802 }
 803
 804 /**************************************************************************
 805  *                              widDevInterface                 [internal]
 806  */
 807 static DWORD widDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
 808 {
 809     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 810                                         NULL, 0 ) * sizeof(WCHAR))
 811     {
 812         MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 813                             dwParam1, dwParam2 / sizeof(WCHAR));
 814         return MMSYSERR_NOERROR;
 815     }
 816     return MMSYSERR_INVALPARAM;
 817 }
 818
 819 /**************************************************************************
 820  *                              widMessage (WINEALSA.@)
 821  */
 822 DWORD WINAPI ALSA_widMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
 823                              DWORD dwParam1, DWORD dwParam2)
 824 {
 825     TRACE("(%u, %s, %08X, %08X, %08X);\n",
 826           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
 827
 828     switch (wMsg) {
 829     case DRVM_INIT:
 830     case DRVM_EXIT:
 831     case DRVM_ENABLE:
 832     case DRVM_DISABLE:
 833         /* FIXME: Pretend this is supported */
 834         return 0;
 835     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
 836     case WIDM_CLOSE:            return widClose         (wDevID);
 837     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 838     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
 839     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
 840     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEINCAPSW)dwParam1,       dwParam2);
 841     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
 842     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
 843     case WIDM_RESET:            return widReset         (wDevID);
 844     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 845     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 846     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
 847     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
 848     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
 849     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
 850     default:
 851         FIXME("unknown message %d!\n", wMsg);
 852     }
 853     return MMSYSERR_NOTSUPPORTED;
 854 }
 855
 856 #else /* HAVE_ALSA */
 857
 858 /**************************************************************************
 859  *                              widMessage (WINEALSA.@)
 860  */
 861 DWORD WINAPI ALSA_widMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
 862                              DWORD dwParam1, DWORD dwParam2)
 863 {
 864     FIXME("(%u, %04X, %08X, %08X, %08X):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
 865     return MMSYSERR_NOTENABLED;
 866 }
 867
 868 #endif /* HAVE_ALSA */