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 = (1024/*wwi-dwPeriodSize => overrun!*/ * 1000) / wwi->format.Format.nAvgBytesPerSec;
 164     frames_per_period = snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize);
 165     TRACE("sleeptime=%d ms\n", dwSleepTime);
 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             TRACE("frames = %d  bytes = %d\n", frames, bytes);
 184             periods = bytes / wwi->dwPeriodSize;
 185             while ((periods > 0) && (wwi->lpQueuePtr))
 186             {
 187                 periods--;
 188                 bytes = wwi->dwPeriodSize;
 189                 TRACE("bytes = %d\n",bytes);
 190                 if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded >= wwi->dwPeriodSize)
 191                 {
 192                     /* directly read fragment in wavehdr */
 193                     read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames_per_period);
 194                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
 195
 196                     TRACE("bytesRead=%d (direct)\n", bytesRead);
 197                     if (bytesRead != (DWORD) -1)
 198                     {
 199                         /* update number of bytes recorded in current buffer and by this device */
 200                         lpWaveHdr->dwBytesRecorded += bytesRead;
 201                         InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, bytesRead);
 202
 203                         /* buffer is full. notify client */
 204                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
 205                         {
 206                             /* must copy the value of next waveHdr, because we have no idea of what
 207                              * will be done with the content of lpWaveHdr in callback
 208                              */
 209                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
 210
 211                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 212                             lpWaveHdr->dwFlags |=  WHDR_DONE;
 213
 214                             wwi->lpQueuePtr = lpNext;
 215                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 216                             lpWaveHdr = lpNext;
 217                         }
 218                     } else {
 219                         TRACE("read(%s, %p, %d) failed (%s)\n", wwi->pcmname,
 220                             lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
 221                             frames_per_period, strerror(errno));
 222                     }
 223                 }
 224                 else
 225                 {
 226                     /* read the fragment in a local buffer */
 227                     read = wwi->read(wwi->pcm, buffer, frames_per_period);
 228                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
 229                     pOffset = buffer;
 230
 231                     TRACE("bytesRead=%d (local)\n", bytesRead);
 232
 233                     if (bytesRead == (DWORD) -1) {
 234                         TRACE("read(%s, %p, %d) failed (%s)\n", wwi->pcmname,
 235                               buffer, frames_per_period, strerror(errno));
 236                         continue;
 237                     }
 238
 239                     /* copy data in client buffers */
 240                     while (bytesRead != (DWORD) -1 && bytesRead > 0)
 241                     {
 242                         DWORD dwToCopy = min (bytesRead, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
 243
 244                         memcpy(lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
 245                                pOffset,
 246                                dwToCopy);
 247
 248                         /* update number of bytes recorded in current buffer and by this device */
 249                         lpWaveHdr->dwBytesRecorded += dwToCopy;
 250                         InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, dwToCopy);
 251                         bytesRead -= dwToCopy;
 252                         pOffset   += dwToCopy;
 253
 254                         /* client buffer is full. notify client */
 255                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
 256                         {
 257                             /* must copy the value of next waveHdr, because we have no idea of what
 258                              * will be done with the content of lpWaveHdr in callback
 259                              */
 260                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
 261                             TRACE("lpNext=%p\n", lpNext);
 262
 263                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 264                             lpWaveHdr->dwFlags |=  WHDR_DONE;
 265
 266                             wwi->lpQueuePtr = lpNext;
 267                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 268
 269                             lpWaveHdr = lpNext;
 270                             if (!lpNext && bytesRead) {
 271                                 /* before we give up, check for more header messages */
 272                                 while (ALSA_PeekRingMessage(&wwi->msgRing, &msg, &param, &ev))
 273                                 {
 274                                     if (msg == WINE_WM_HEADER) {
 275                                         LPWAVEHDR hdr;
 276                                         ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev);
 277                                         hdr = ((LPWAVEHDR)param);
 278                                         TRACE("msg = %s, hdr = %p, ev = %p\n", ALSA_getCmdString(msg), hdr, ev);
 279                                         hdr->lpNext = 0;
 280                                         if (lpWaveHdr == 0) {
 281                                             /* new head of queue */
 282                                             wwi->lpQueuePtr = lpWaveHdr = hdr;
 283                                         } else {
 284                                             /* insert buffer at the end of queue */
 285                                             LPWAVEHDR*  wh;
 286                                             for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 287                                             *wh = hdr;
 288                                         }
 289                                     } else
 290                                         break;
 291                                 }
 292
 293                                 if (lpWaveHdr == 0) {
 294                                     /* no more buffer to copy data to, but we did read more.
 295                                      * what hasn't been copied will be dropped
 296                                      */
 297                                     WARN("buffer under run! %u bytes dropped.\n", bytesRead);
 298                                     wwi->lpQueuePtr = NULL;
 299                                     break;
 300                                 }
 301                             }
 302                         }
 303                     }
 304                 }
 305             }
 306         }
 307
 308         ALSA_WaitRingMessage(&wwi->msgRing, dwSleepTime);
 309
 310         while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev))
 311         {
 312             TRACE("msg=%s param=0x%x\n", ALSA_getCmdString(msg), param);
 313             switch (msg) {
 314             case WINE_WM_PAUSING:
 315                 wwi->state = WINE_WS_PAUSED;
 316                 /*FIXME("Device should stop recording\n");*/
 317                 SetEvent(ev);
 318                 break;
 319             case WINE_WM_STARTING:
 320                 wwi->state = WINE_WS_PLAYING;
 321                 snd_pcm_start(wwi->pcm);
 322                 SetEvent(ev);
 323                 break;
 324             case WINE_WM_HEADER:
 325                 lpWaveHdr = (LPWAVEHDR)param;
 326                 lpWaveHdr->lpNext = 0;
 327
 328                 /* insert buffer at the end of queue */
 329                 {
 330                     LPWAVEHDR*  wh;
 331                     for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 332                     *wh = lpWaveHdr;
 333                 }
 334                 break;
 335             case WINE_WM_STOPPING:
 336                 if (wwi->state != WINE_WS_STOPPED)
 337                 {
 338                     snd_pcm_drain(wwi->pcm);
 339
 340                     /* read any headers in queue */
 341                     widRecorder_ReadHeaders(wwi);
 342
 343                     /* return current buffer to app */
 344                     lpWaveHdr = wwi->lpQueuePtr;
 345                     if (lpWaveHdr)
 346                     {
 347                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
 348                         TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 349                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 350                         lpWaveHdr->dwFlags |= WHDR_DONE;
 351                         wwi->lpQueuePtr = lpNext;
 352                         widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 353                     }
 354                 }
 355                 wwi->state = WINE_WS_STOPPED;
 356                 SetEvent(ev);
 357                 break;
 358             case WINE_WM_RESETTING:
 359                 if (wwi->state != WINE_WS_STOPPED)
 360                 {
 361                     snd_pcm_drain(wwi->pcm);
 362                 }
 363                 wwi->state = WINE_WS_STOPPED;
 364                 wwi->dwTotalRecorded = 0;
 365
 366                 /* read any headers in queue */
 367                 widRecorder_ReadHeaders(wwi);
 368
 369                 /* return all buffers to the app */
 370                 for (lpWaveHdr = wwi->lpQueuePtr; lpWaveHdr; lpWaveHdr = lpWaveHdr->lpNext) {
 371                     TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 372                     lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 373                     lpWaveHdr->dwFlags |= WHDR_DONE;
 374                     wwi->lpQueuePtr = lpWaveHdr->lpNext;
 375                     widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
 376                 }
 377
 378                 wwi->lpQueuePtr = NULL;
 379                 SetEvent(ev);
 380                 break;
 381             case WINE_WM_CLOSING:
 382                 wwi->hThread = 0;
 383                 wwi->state = WINE_WS_CLOSED;
 384                 SetEvent(ev);
 385                 HeapFree(GetProcessHeap(), 0, buffer);
 386                 ExitThread(0);
 387                 /* shouldn't go here */
 388             default:
 389                 FIXME("unknown message %d\n", msg);
 390                 break;
 391             }
 392         }
 393     }
 394     ExitThread(0);
 395     /* just for not generating compilation warnings... should never be executed */
 396     return 0;
 397 }
 398
 399 /**************************************************************************
 400  *                              widOpen                         [internal]
 401  */
 402 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 403 {
 404     WINE_WAVEDEV*               wwi;
 405     snd_pcm_hw_params_t *       hw_params;
 406     snd_pcm_sw_params_t *       sw_params;
 407     snd_pcm_access_t            access;
 408     snd_pcm_format_t            format;
 409     unsigned int                rate;
 410     unsigned int                buffer_time = 500000;
 411     unsigned int                period_time = 10000;
 412     snd_pcm_uframes_t           buffer_size;
 413     snd_pcm_uframes_t           period_size;
 414     int                         flags;
 415     snd_pcm_t *                 pcm;
 416     int                         err;
 417     int                         dir;
 418
 419     snd_pcm_hw_params_alloca(&hw_params);
 420     snd_pcm_sw_params_alloca(&sw_params);
 421
 422     /* JPW TODO - review this code */
 423     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 424     if (lpDesc == NULL) {
 425         WARN("Invalid Parameter !\n");
 426         return MMSYSERR_INVALPARAM;
 427     }
 428     if (wDevID >= ALSA_WidNumDevs) {
 429         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 430         return MMSYSERR_BADDEVICEID;
 431     }
 432
 433     /* only PCM format is supported so far... */
 434     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 435         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 436              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 437              lpDesc->lpFormat->nSamplesPerSec);
 438         return WAVERR_BADFORMAT;
 439     }
 440
 441     if (dwFlags & WAVE_FORMAT_QUERY) {
 442         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 443              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 444              lpDesc->lpFormat->nSamplesPerSec);
 445         return MMSYSERR_NOERROR;
 446     }
 447
 448     wwi = &WInDev[wDevID];
 449
 450     if (wwi->pcm != NULL) {
 451         WARN("already allocated\n");
 452         return MMSYSERR_ALLOCATED;
 453     }
 454
 455     if ((dwFlags & WAVE_DIRECTSOUND) && !(wwi->dwSupport & WAVECAPS_DIRECTSOUND))
 456         /* not supported, ignore it */
 457         dwFlags &= ~WAVE_DIRECTSOUND;
 458
 459     wwi->pcm = 0;
 460     flags = SND_PCM_NONBLOCK;
 461
 462     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
 463     {
 464         ERR("Error open: %s\n", snd_strerror(err));
 465         return MMSYSERR_NOTENABLED;
 466     }
 467
 468     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 469
 470     memcpy(&wwi->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
 471     ALSA_copyFormat(lpDesc->lpFormat, &wwi->format);
 472
 473     if (wwi->format.Format.wBitsPerSample == 0) {
 474         WARN("Resetting zeroed wBitsPerSample\n");
 475         wwi->format.Format.wBitsPerSample = 8 *
 476             (wwi->format.Format.nAvgBytesPerSec /
 477              wwi->format.Format.nSamplesPerSec) /
 478             wwi->format.Format.nChannels;
 479     }
 480
 481     snd_pcm_hw_params_any(pcm, hw_params);
 482
 483 #define EXIT_ON_ERROR(f,e,txt) do \
 484 { \
 485     int err; \
 486     if ( (err = (f) ) < 0) \
 487     { \
 488         WARN(txt ": %s\n", snd_strerror(err)); \
 489         snd_pcm_close(pcm); \
 490         return e; \
 491     } \
 492 } while(0)
 493
 494     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
 495     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
 496         WARN("mmap not available. switching to standard write.\n");
 497         access = SND_PCM_ACCESS_RW_INTERLEAVED;
 498         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
 499         wwi->read = snd_pcm_readi;
 500     }
 501     else
 502         wwi->read = snd_pcm_mmap_readi;
 503
 504     EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwi->format.Format.nChannels), WAVERR_BADFORMAT, "unable to set required channels");
 505
 506     if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
 507         ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 508         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
 509         format = (wwi->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
 510                  (wwi->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
 511                  (wwi->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
 512                  (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
 513     } else if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 514         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
 515         format = (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
 516     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
 517         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
 518         snd_pcm_close(pcm);
 519         return WAVERR_BADFORMAT;
 520     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
 521         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
 522         snd_pcm_close(pcm);
 523         return WAVERR_BADFORMAT;
 524     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
 525         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
 526         snd_pcm_close(pcm);
 527         return WAVERR_BADFORMAT;
 528     } else {
 529         ERR("invalid format: %0x04x\n", wwi->format.Format.wFormatTag);
 530         snd_pcm_close(pcm);
 531         return WAVERR_BADFORMAT;
 532     }
 533
 534     EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format");
 535
 536     rate = wwi->format.Format.nSamplesPerSec;
 537     dir = 0;
 538     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
 539     if (err < 0) {
 540         WARN("Rate %d Hz not available for playback: %s\n", wwi->format.Format.nSamplesPerSec, snd_strerror(rate));
 541         snd_pcm_close(pcm);
 542         return WAVERR_BADFORMAT;
 543     }
 544     if (!ALSA_NearMatch(rate, wwi->format.Format.nSamplesPerSec)) {
 545         WARN("Rate doesn't match (requested %d Hz, got %d Hz)\n", wwi->format.Format.nSamplesPerSec, rate);
 546         snd_pcm_close(pcm);
 547         return WAVERR_BADFORMAT;
 548     }
 549
 550     dir=0;
 551     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
 552     dir=0;
 553     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
 554
 555     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
 556
 557     dir=0;
 558     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
 559     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
 560
 561     snd_pcm_sw_params_current(pcm, sw_params);
 562     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, dwFlags & WAVE_DIRECTSOUND ? INT_MAX : 1 ), MMSYSERR_ERROR, "unable to set start threshold");
 563     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
 564     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
 565     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
 566     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
 567     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
 568 #undef EXIT_ON_ERROR
 569
 570     snd_pcm_prepare(pcm);
 571
 572     if (TRACE_ON(wave))
 573         ALSA_TraceParameters(hw_params, sw_params, FALSE);
 574
 575     /* now, we can save all required data for later use... */
 576     if ( wwi->hw_params )
 577         snd_pcm_hw_params_free(wwi->hw_params);
 578     snd_pcm_hw_params_malloc(&(wwi->hw_params));
 579     snd_pcm_hw_params_copy(wwi->hw_params, hw_params);
 580
 581     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 582     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
 583     wwi->pcm = pcm;
 584
 585     ALSA_InitRingMessage(&wwi->msgRing);
 586
 587     wwi->dwPeriodSize = period_size;
 588     /*if (wwi->dwFragmentSize % wwi->format.Format.nBlockAlign)
 589         ERR("Fragment doesn't contain an integral number of data blocks\n");
 590     */
 591     TRACE("dwPeriodSize=%u\n", wwi->dwPeriodSize);
 592     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 593           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
 594           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
 595           wwi->format.Format.nBlockAlign);
 596
 597     if (!(dwFlags & WAVE_DIRECTSOUND)) {
 598         wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 599         wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD)wDevID, 0, &(wwi->dwThreadID));
 600         if (wwi->hThread)
 601             SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 602         WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
 603         CloseHandle(wwi->hStartUpEvent);
 604     } else {
 605         wwi->hThread = INVALID_HANDLE_VALUE;
 606         wwi->dwThreadID = 0;
 607     }
 608     wwi->hStartUpEvent = INVALID_HANDLE_VALUE;
 609
 610     return widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
 611 }
 612
 613
 614 /**************************************************************************
 615  *                              widClose                        [internal]
 616  */
 617 static DWORD widClose(WORD wDevID)
 618 {
 619     DWORD               ret = MMSYSERR_NOERROR;
 620     WINE_WAVEDEV*       wwi;
 621
 622     TRACE("(%u);\n", wDevID);
 623
 624     if (wDevID >= ALSA_WidNumDevs) {
 625         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 626         return MMSYSERR_BADDEVICEID;
 627     }
 628
 629     if (WInDev[wDevID].pcm == NULL) {
 630         WARN("Requested to close already closed device %d!\n", wDevID);
 631         return MMSYSERR_BADDEVICEID;
 632     }
 633
 634     wwi = &WInDev[wDevID];
 635     if (wwi->lpQueuePtr) {
 636         WARN("buffers still playing !\n");
 637         ret = WAVERR_STILLPLAYING;
 638     } else {
 639         if (wwi->hThread != INVALID_HANDLE_VALUE) {
 640             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
 641         }
 642         ALSA_DestroyRingMessage(&wwi->msgRing);
 643
 644         snd_pcm_hw_params_free(wwi->hw_params);
 645         wwi->hw_params = NULL;
 646
 647         snd_pcm_close(wwi->pcm);
 648         wwi->pcm = NULL;
 649
 650         ret = widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
 651     }
 652
 653     return ret;
 654 }
 655
 656 /**************************************************************************
 657  *                              widAddBuffer                    [internal]
 658  *
 659  */
 660 static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 661 {
 662     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 663
 664     /* first, do the sanity checks... */
 665     if (wDevID >= ALSA_WidNumDevs) {
 666         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 667         return MMSYSERR_BADDEVICEID;
 668     }
 669
 670     if (WInDev[wDevID].pcm == NULL) {
 671         WARN("Requested to add buffer to already closed device %d!\n", wDevID);
 672         return MMSYSERR_BADDEVICEID;
 673     }
 674
 675     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
 676         return WAVERR_UNPREPARED;
 677
 678     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
 679         return WAVERR_STILLPLAYING;
 680
 681     lpWaveHdr->dwFlags &= ~WHDR_DONE;
 682     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
 683     lpWaveHdr->lpNext = 0;
 684
 685     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
 686
 687     return MMSYSERR_NOERROR;
 688 }
 689
 690 /**************************************************************************
 691  *                              widStart                        [internal]
 692  *
 693  */
 694 static DWORD widStart(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 695 {
 696     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 697
 698     /* first, do the sanity checks... */
 699     if (wDevID >= ALSA_WidNumDevs) {
 700         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 701         return MMSYSERR_BADDEVICEID;
 702     }
 703
 704     if (WInDev[wDevID].pcm == NULL) {
 705         WARN("Requested to start closed device %d!\n", wDevID);
 706         return MMSYSERR_BADDEVICEID;
 707     }
 708
 709     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STARTING, 0, TRUE);
 710
 711     return MMSYSERR_NOERROR;
 712 }
 713
 714 /**************************************************************************
 715  *                              widStop                 [internal]
 716  *
 717  */
 718 static DWORD widStop(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 719 {
 720     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 721
 722     /* first, do the sanity checks... */
 723     if (wDevID >= ALSA_WidNumDevs) {
 724         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 725         return MMSYSERR_BADDEVICEID;
 726     }
 727
 728     if (WInDev[wDevID].pcm == NULL) {
 729         WARN("Requested to stop closed device %d!\n", wDevID);
 730         return MMSYSERR_BADDEVICEID;
 731     }
 732
 733     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STOPPING, 0, TRUE);
 734
 735     return MMSYSERR_NOERROR;
 736 }
 737
 738 /**************************************************************************
 739  *                      widReset                                [internal]
 740  */
 741 static DWORD widReset(WORD wDevID)
 742 {
 743     TRACE("(%u);\n", wDevID);
 744     if (wDevID >= ALSA_WidNumDevs) {
 745         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 746         return MMSYSERR_BADDEVICEID;
 747     }
 748
 749     if (WInDev[wDevID].pcm == NULL) {
 750         WARN("Requested to reset closed device %d!\n", wDevID);
 751         return MMSYSERR_BADDEVICEID;
 752     }
 753
 754     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
 755     return MMSYSERR_NOERROR;
 756 }
 757
 758 /**************************************************************************
 759  *                              widGetPosition                  [internal]
 760  */
 761 static DWORD widGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
 762 {
 763     WINE_WAVEDEV*       wwi;
 764
 765     TRACE("(%u, %p, %u);\n", wDevID, lpTime, uSize);
 766
 767     if (wDevID >= ALSA_WidNumDevs) {
 768         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 769         return MMSYSERR_BADDEVICEID;
 770     }
 771
 772     if (WInDev[wDevID].state == WINE_WS_CLOSED) {
 773         WARN("Requested position of closed device %d!\n", wDevID);
 774         return MMSYSERR_BADDEVICEID;
 775     }
 776
 777     if (lpTime == NULL) {
 778         WARN("invalid parameter: lpTime = NULL\n");
 779         return MMSYSERR_INVALPARAM;
 780     }
 781
 782     wwi = &WInDev[wDevID];
 783     return ALSA_bytes_to_mmtime(lpTime, wwi->dwTotalRecorded, &wwi->format);
 784 }
 785
 786 /**************************************************************************
 787  *                              widGetNumDevs                   [internal]
 788  */
 789 static  DWORD   widGetNumDevs(void)
 790 {
 791     return ALSA_WidNumDevs;
 792 }
 793
 794 /**************************************************************************
 795  *                              widDevInterfaceSize             [internal]
 796  */
 797 static DWORD widDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
 798 {
 799     TRACE("(%u, %p)\n", wDevID, dwParam1);
 800
 801     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 802                                     NULL, 0 ) * sizeof(WCHAR);
 803     return MMSYSERR_NOERROR;
 804 }
 805
 806 /**************************************************************************
 807  *                              widDevInterface                 [internal]
 808  */
 809 static DWORD widDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
 810 {
 811     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 812                                         NULL, 0 ) * sizeof(WCHAR))
 813     {
 814         MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 815                             dwParam1, dwParam2 / sizeof(WCHAR));
 816         return MMSYSERR_NOERROR;
 817     }
 818     return MMSYSERR_INVALPARAM;
 819 }
 820
 821 /**************************************************************************
 822  *                              widDsCreate                     [internal]
 823  */
 824 static DWORD widDsCreate(UINT wDevID, PIDSCDRIVER* drv)
 825 {
 826     TRACE("(%d,%p)\n",wDevID,drv);
 827
 828     /* the HAL isn't much better than the HEL if we can't do mmap() */
 829     FIXME("DirectSoundCapture not implemented\n");
 830     FIXME("The (slower) DirectSound HEL mode will be used instead.\n");
 831     return MMSYSERR_NOTSUPPORTED;
 832 }
 833
 834 /**************************************************************************
 835  *                              widDsDesc                       [internal]
 836  */
 837 static DWORD widDsDesc(UINT wDevID, PDSDRIVERDESC desc)
 838 {
 839     memcpy(desc, &(WInDev[wDevID].ds_desc), sizeof(DSDRIVERDESC));
 840     return MMSYSERR_NOERROR;
 841 }
 842
 843 /**************************************************************************
 844  *                              widMessage (WINEALSA.@)
 845  */
 846 DWORD WINAPI ALSA_widMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
 847                              DWORD dwParam1, DWORD dwParam2)
 848 {
 849     TRACE("(%u, %s, %08X, %08X, %08X);\n",
 850           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
 851
 852     switch (wMsg) {
 853     case DRVM_INIT:
 854     case DRVM_EXIT:
 855     case DRVM_ENABLE:
 856     case DRVM_DISABLE:
 857         /* FIXME: Pretend this is supported */
 858         return 0;
 859     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
 860     case WIDM_CLOSE:            return widClose         (wDevID);
 861     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 862     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
 863     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
 864     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEINCAPSW)dwParam1,       dwParam2);
 865     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
 866     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
 867     case WIDM_RESET:            return widReset         (wDevID);
 868     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 869     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 870     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
 871     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
 872     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
 873     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
 874     default:
 875         FIXME("unknown message %d!\n", wMsg);
 876     }
 877     return MMSYSERR_NOTSUPPORTED;
 878 }
 879
 880 #else /* HAVE_ALSA */
 881
 882 /**************************************************************************
 883  *                              widMessage (WINEALSA.@)
 884  */
 885 DWORD WINAPI ALSA_widMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
 886                              DWORD dwParam1, DWORD dwParam2)
 887 {
 888     FIXME("(%u, %04X, %08X, %08X, %08X):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
 889     return MMSYSERR_NOTENABLED;
 890 }
 891
 892 #endif /* HAVE_ALSA */