git.oblomov.eu Git - wine/blob - 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, LPWAVEOUTCAPSW 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     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                         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                         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             case WINE_WM_UPDATE:
 389                 SetEvent(ev);
 390                 break;
 391
 392             default:
 393                 FIXME("unknown message %d\n", msg);
 394                 break;
 395             }
 396         }
 397     }
 398     ExitThread(0);
 399     /* just for not generating compilation warnings... should never be executed */
 400     return 0;
 401 }
 402
 403 /**************************************************************************
 404  *                              widOpen                         [internal]
 405  */
 406 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 407 {
 408     WINE_WAVEDEV*               wwi;
 409     snd_pcm_hw_params_t *       hw_params;
 410     snd_pcm_sw_params_t *       sw_params;
 411     snd_pcm_access_t            access;
 412     snd_pcm_format_t            format;
 413     unsigned int                rate;
 414     unsigned int                buffer_time = 500000;
 415     unsigned int                period_time = 10000;
 416     snd_pcm_uframes_t           buffer_size;
 417     snd_pcm_uframes_t           period_size;
 418     int                         flags;
 419     snd_pcm_t *                 pcm;
 420     int                         err;
 421     int                         dir;
 422
 423     snd_pcm_hw_params_alloca(&hw_params);
 424     snd_pcm_sw_params_alloca(&sw_params);
 425
 426     /* JPW TODO - review this code */
 427     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 428     if (lpDesc == NULL) {
 429         WARN("Invalid Parameter !\n");
 430         return MMSYSERR_INVALPARAM;
 431     }
 432     if (wDevID >= ALSA_WidNumDevs) {
 433         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 434         return MMSYSERR_BADDEVICEID;
 435     }
 436
 437     /* only PCM format is supported so far... */
 438     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 439         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 440              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 441              lpDesc->lpFormat->nSamplesPerSec);
 442         return WAVERR_BADFORMAT;
 443     }
 444
 445     if (dwFlags & WAVE_FORMAT_QUERY) {
 446         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 447              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 448              lpDesc->lpFormat->nSamplesPerSec);
 449         return MMSYSERR_NOERROR;
 450     }
 451
 452     wwi = &WInDev[wDevID];
 453
 454     if (wwi->pcm != NULL) {
 455         WARN("already allocated\n");
 456         return MMSYSERR_ALLOCATED;
 457     }
 458
 459     if ((dwFlags & WAVE_DIRECTSOUND) && !(wwi->dwSupport & WAVECAPS_DIRECTSOUND))
 460         /* not supported, ignore it */
 461         dwFlags &= ~WAVE_DIRECTSOUND;
 462
 463     wwi->pcm = 0;
 464     flags = SND_PCM_NONBLOCK;
 465
 466     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
 467     {
 468         ERR("Error open: %s\n", snd_strerror(err));
 469         return MMSYSERR_NOTENABLED;
 470     }
 471
 472     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 473
 474     memcpy(&wwi->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
 475     ALSA_copyFormat(lpDesc->lpFormat, &wwi->format);
 476
 477     if (wwi->format.Format.wBitsPerSample == 0) {
 478         WARN("Resetting zeroed wBitsPerSample\n");
 479         wwi->format.Format.wBitsPerSample = 8 *
 480             (wwi->format.Format.nAvgBytesPerSec /
 481              wwi->format.Format.nSamplesPerSec) /
 482             wwi->format.Format.nChannels;
 483     }
 484
 485     snd_pcm_hw_params_any(pcm, hw_params);
 486
 487 #define EXIT_ON_ERROR(f,e,txt) do \
 488 { \
 489     int err; \
 490     if ( (err = (f) ) < 0) \
 491     { \
 492         WARN(txt ": %s\n", snd_strerror(err)); \
 493         snd_pcm_close(pcm); \
 494         return e; \
 495     } \
 496 } while(0)
 497
 498     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
 499     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
 500         WARN("mmap not available. switching to standard write.\n");
 501         access = SND_PCM_ACCESS_RW_INTERLEAVED;
 502         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
 503         wwi->read = snd_pcm_readi;
 504     }
 505     else
 506         wwi->read = snd_pcm_mmap_readi;
 507
 508     EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwi->format.Format.nChannels), WAVERR_BADFORMAT, "unable to set required channels");
 509
 510     if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
 511         ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 512         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
 513         format = (wwi->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
 514                  (wwi->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
 515                  (wwi->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
 516                  (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
 517     } else if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 518         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
 519         format = (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
 520     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
 521         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
 522         snd_pcm_close(pcm);
 523         return WAVERR_BADFORMAT;
 524     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
 525         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
 526         snd_pcm_close(pcm);
 527         return WAVERR_BADFORMAT;
 528     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
 529         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
 530         snd_pcm_close(pcm);
 531         return WAVERR_BADFORMAT;
 532     } else {
 533         ERR("invalid format: %0x04x\n", wwi->format.Format.wFormatTag);
 534         snd_pcm_close(pcm);
 535         return WAVERR_BADFORMAT;
 536     }
 537
 538     EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format");
 539
 540     rate = wwi->format.Format.nSamplesPerSec;
 541     dir = 0;
 542     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
 543     if (err < 0) {
 544         WARN("Rate %d Hz not available for playback: %s\n", wwi->format.Format.nSamplesPerSec, snd_strerror(rate));
 545         snd_pcm_close(pcm);
 546         return WAVERR_BADFORMAT;
 547     }
 548     if (!ALSA_NearMatch(rate, wwi->format.Format.nSamplesPerSec)) {
 549         WARN("Rate doesn't match (requested %d Hz, got %d Hz)\n", wwi->format.Format.nSamplesPerSec, rate);
 550         snd_pcm_close(pcm);
 551         return WAVERR_BADFORMAT;
 552     }
 553
 554     dir=0;
 555     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
 556     dir=0;
 557     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
 558
 559     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
 560
 561     dir=0;
 562     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
 563     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
 564
 565     snd_pcm_sw_params_current(pcm, sw_params);
 566     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");
 567     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
 568     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
 569     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
 570     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
 571     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
 572 #undef EXIT_ON_ERROR
 573
 574     snd_pcm_prepare(pcm);
 575
 576     if (TRACE_ON(wave))
 577         ALSA_TraceParameters(hw_params, sw_params, FALSE);
 578
 579     /* now, we can save all required data for later use... */
 580     if ( wwi->hw_params )
 581         snd_pcm_hw_params_free(wwi->hw_params);
 582     snd_pcm_hw_params_malloc(&(wwi->hw_params));
 583     snd_pcm_hw_params_copy(wwi->hw_params, hw_params);
 584
 585     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 586     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
 587     wwi->pcm = pcm;
 588
 589     ALSA_InitRingMessage(&wwi->msgRing);
 590
 591     wwi->dwPeriodSize = period_size;
 592     /*if (wwi->dwFragmentSize % wwi->format.Format.nBlockAlign)
 593         ERR("Fragment doesn't contain an integral number of data blocks\n");
 594     */
 595     TRACE("dwPeriodSize=%u\n", wwi->dwPeriodSize);
 596     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 597           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
 598           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
 599           wwi->format.Format.nBlockAlign);
 600
 601     if (!(dwFlags & WAVE_DIRECTSOUND)) {
 602         wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 603         wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD)wDevID, 0, &(wwi->dwThreadID));
 604         if (wwi->hThread)
 605             SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 606         WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
 607         CloseHandle(wwi->hStartUpEvent);
 608     } else {
 609         wwi->hThread = INVALID_HANDLE_VALUE;
 610         wwi->dwThreadID = 0;
 611     }
 612     wwi->hStartUpEvent = INVALID_HANDLE_VALUE;
 613
 614     return widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
 615 }
 616
 617
 618 /**************************************************************************
 619  *                              widClose                        [internal]
 620  */
 621 static DWORD widClose(WORD wDevID)
 622 {
 623     DWORD               ret = MMSYSERR_NOERROR;
 624     WINE_WAVEDEV*       wwi;
 625
 626     TRACE("(%u);\n", wDevID);
 627
 628     if (wDevID >= ALSA_WidNumDevs) {
 629         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 630         return MMSYSERR_BADDEVICEID;
 631     }
 632
 633     if (WInDev[wDevID].pcm == NULL) {
 634         WARN("Requested to close already closed device %d!\n", wDevID);
 635         return MMSYSERR_BADDEVICEID;
 636     }
 637
 638     wwi = &WInDev[wDevID];
 639     if (wwi->lpQueuePtr) {
 640         WARN("buffers still playing !\n");
 641         ret = WAVERR_STILLPLAYING;
 642     } else {
 643         if (wwi->hThread != INVALID_HANDLE_VALUE) {
 644             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
 645         }
 646         ALSA_DestroyRingMessage(&wwi->msgRing);
 647
 648         snd_pcm_hw_params_free(wwi->hw_params);
 649         wwi->hw_params = NULL;
 650
 651         snd_pcm_close(wwi->pcm);
 652         wwi->pcm = NULL;
 653
 654         ret = widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
 655     }
 656
 657     return ret;
 658 }
 659
 660 /**************************************************************************
 661  *                              widAddBuffer                    [internal]
 662  *
 663  */
 664 static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 665 {
 666     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 667
 668     /* first, do the sanity checks... */
 669     if (wDevID >= ALSA_WidNumDevs) {
 670         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 671         return MMSYSERR_BADDEVICEID;
 672     }
 673
 674     if (WInDev[wDevID].pcm == NULL) {
 675         WARN("Requested to add buffer to already closed device %d!\n", wDevID);
 676         return MMSYSERR_BADDEVICEID;
 677     }
 678
 679     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
 680         return WAVERR_UNPREPARED;
 681
 682     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
 683         return WAVERR_STILLPLAYING;
 684
 685     lpWaveHdr->dwFlags &= ~WHDR_DONE;
 686     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
 687     lpWaveHdr->lpNext = 0;
 688
 689     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
 690
 691     return MMSYSERR_NOERROR;
 692 }
 693
 694 /**************************************************************************
 695  *                              widStart                        [internal]
 696  *
 697  */
 698 static DWORD widStart(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 699 {
 700     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 701
 702     /* first, do the sanity checks... */
 703     if (wDevID >= ALSA_WidNumDevs) {
 704         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 705         return MMSYSERR_BADDEVICEID;
 706     }
 707
 708     if (WInDev[wDevID].pcm == NULL) {
 709         WARN("Requested to start closed device %d!\n", wDevID);
 710         return MMSYSERR_BADDEVICEID;
 711     }
 712
 713     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STARTING, 0, TRUE);
 714
 715     return MMSYSERR_NOERROR;
 716 }
 717
 718 /**************************************************************************
 719  *                              widStop                 [internal]
 720  *
 721  */
 722 static DWORD widStop(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 723 {
 724     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 725
 726     /* first, do the sanity checks... */
 727     if (wDevID >= ALSA_WidNumDevs) {
 728         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 729         return MMSYSERR_BADDEVICEID;
 730     }
 731
 732     if (WInDev[wDevID].pcm == NULL) {
 733         WARN("Requested to stop closed device %d!\n", wDevID);
 734         return MMSYSERR_BADDEVICEID;
 735     }
 736
 737     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STOPPING, 0, TRUE);
 738
 739     return MMSYSERR_NOERROR;
 740 }
 741
 742 /**************************************************************************
 743  *                      widReset                                [internal]
 744  */
 745 static DWORD widReset(WORD wDevID)
 746 {
 747     TRACE("(%u);\n", wDevID);
 748     if (wDevID >= ALSA_WidNumDevs) {
 749         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 750         return MMSYSERR_BADDEVICEID;
 751     }
 752
 753     if (WInDev[wDevID].pcm == NULL) {
 754         WARN("Requested to reset closed device %d!\n", wDevID);
 755         return MMSYSERR_BADDEVICEID;
 756     }
 757
 758     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
 759     return MMSYSERR_NOERROR;
 760 }
 761
 762 /**************************************************************************
 763  *                              widGetPosition                  [internal]
 764  */
 765 static DWORD widGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
 766 {
 767     WINE_WAVEDEV*       wwi;
 768
 769     TRACE("(%u, %p, %u);\n", wDevID, lpTime, uSize);
 770
 771     if (wDevID >= ALSA_WidNumDevs) {
 772         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 773         return MMSYSERR_BADDEVICEID;
 774     }
 775
 776     if (WInDev[wDevID].state == WINE_WS_CLOSED) {
 777         WARN("Requested position of closed device %d!\n", wDevID);
 778         return MMSYSERR_BADDEVICEID;
 779     }
 780
 781     if (lpTime == NULL) {
 782         WARN("invalid parameter: lpTime = NULL\n");
 783         return MMSYSERR_INVALPARAM;
 784     }
 785
 786     wwi = &WInDev[wDevID];
 787     ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_UPDATE, 0, TRUE);
 788
 789     return ALSA_bytes_to_mmtime(lpTime, wwi->dwTotalRecorded, &wwi->format);
 790 }
 791
 792 /**************************************************************************
 793  *                              widGetNumDevs                   [internal]
 794  */
 795 static  DWORD   widGetNumDevs(void)
 796 {
 797     return ALSA_WidNumDevs;
 798 }
 799
 800 /**************************************************************************
 801  *                              widDevInterfaceSize             [internal]
 802  */
 803 static DWORD widDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
 804 {
 805     TRACE("(%u, %p)\n", wDevID, dwParam1);
 806
 807     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 808                                     NULL, 0 ) * sizeof(WCHAR);
 809     return MMSYSERR_NOERROR;
 810 }
 811
 812 /**************************************************************************
 813  *                              widDevInterface                 [internal]
 814  */
 815 static DWORD widDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
 816 {
 817     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 818                                         NULL, 0 ) * sizeof(WCHAR))
 819     {
 820         MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
 821                             dwParam1, dwParam2 / sizeof(WCHAR));
 822         return MMSYSERR_NOERROR;
 823     }
 824     return MMSYSERR_INVALPARAM;
 825 }
 826
 827 /**************************************************************************
 828  *                              widDsCreate                     [internal]
 829  */
 830 static DWORD widDsCreate(UINT wDevID, PIDSCDRIVER* drv)
 831 {
 832     TRACE("(%d,%p)\n",wDevID,drv);
 833
 834     /* the HAL isn't much better than the HEL if we can't do mmap() */
 835     FIXME("DirectSoundCapture not implemented\n");
 836     FIXME("The (slower) DirectSound HEL mode will be used instead.\n");
 837     return MMSYSERR_NOTSUPPORTED;
 838 }
 839
 840 /**************************************************************************
 841  *                              widDsDesc                       [internal]
 842  */
 843 static DWORD widDsDesc(UINT wDevID, PDSDRIVERDESC desc)
 844 {
 845     memcpy(desc, &(WInDev[wDevID].ds_desc), sizeof(DSDRIVERDESC));
 846     return MMSYSERR_NOERROR;
 847 }
 848
 849 /**************************************************************************
 850  *                              widMessage (WINEALSA.@)
 851  */
 852 DWORD WINAPI ALSA_widMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
 853                              DWORD dwParam1, DWORD dwParam2)
 854 {
 855     TRACE("(%u, %s, %08X, %08X, %08X);\n",
 856           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
 857
 858     switch (wMsg) {
 859     case DRVM_INIT:
 860     case DRVM_EXIT:
 861     case DRVM_ENABLE:
 862     case DRVM_DISABLE:
 863         /* FIXME: Pretend this is supported */
 864         return 0;
 865     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
 866     case WIDM_CLOSE:            return widClose         (wDevID);
 867     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 868     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
 869     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
 870     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
 871     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
 872     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
 873     case WIDM_RESET:            return widReset         (wDevID);
 874     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 875     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 876     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
 877     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
 878     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
 879     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
 880     default:
 881         FIXME("unknown message %d!\n", wMsg);
 882     }
 883     return MMSYSERR_NOTSUPPORTED;
 884 }
 885
 886 #else /* HAVE_ALSA */
 887
 888 /**************************************************************************
 889  *                              widMessage (WINEALSA.@)
 890  */
 891 DWORD WINAPI ALSA_widMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
 892                              DWORD dwParam1, DWORD dwParam2)
 893 {
 894     FIXME("(%u, %04X, %08X, %08X, %08X):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
 895     return MMSYSERR_NOTENABLED;
 896 }
 897
 898 #endif /* HAVE_ALSA */