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