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 #include "mmreg.h"
  55 #include "dsound.h"
  56 #include "dsdriver.h"
  57 #include "ks.h"
  58 #include "ksmedia.h"
  59
  60 #include "alsa.h"
  61 #include "wine/library.h"
  62 #include "wine/unicode.h"
  63 #include "wine/debug.h"
  64
  65 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  66
  67 WINE_WAVEDEV    *WInDev;
  68 DWORD            ALSA_WidNumMallocedDevs;
  69 DWORD            ALSA_WidNumDevs;
  70
  71 /**************************************************************************
  72 *                       widNotifyClient                 [internal]
  73 */
  74 static void widNotifyClient(WINE_WAVEDEV* wwi, WORD wMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2)
  75 {
  76    TRACE("wMsg = 0x%04x dwParm1 = %04lX dwParam2 = %04lX\n", wMsg, dwParam1, dwParam2);
  77
  78    switch (wMsg) {
  79    case WIM_OPEN:
  80    case WIM_CLOSE:
  81    case WIM_DATA:
  82        DriverCallback(wwi->waveDesc.dwCallback, wwi->wFlags, (HDRVR)wwi->waveDesc.hWave,
  83                       wMsg, wwi->waveDesc.dwInstance, dwParam1, dwParam2);
  84        break;
  85    default:
  86        FIXME("Unknown callback message %u\n", wMsg);
  87    }
  88 }
  89
  90 /**************************************************************************
  91  *                      widGetDevCaps                           [internal]
  92  */
  93 static DWORD widGetDevCaps(WORD wDevID, LPWAVEINCAPSW lpCaps, DWORD dwSize)
  94 {
  95     TRACE("(%u, %p, %u);\n", wDevID, lpCaps, dwSize);
  96
  97     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
  98
  99     if (wDevID >= ALSA_WidNumDevs) {
 100         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 101         return MMSYSERR_BADDEVICEID;
 102     }
 103
 104     memcpy(lpCaps, &WInDev[wDevID].incaps, min(dwSize, sizeof(*lpCaps)));
 105     return MMSYSERR_NOERROR;
 106 }
 107
 108 /**************************************************************************
 109  *                              widRecorder_ReadHeaders         [internal]
 110  */
 111 static void widRecorder_ReadHeaders(WINE_WAVEDEV * wwi)
 112 {
 113     enum win_wm_message tmp_msg;
 114     DWORD_PTR           tmp_param;
 115     HANDLE              tmp_ev;
 116     WAVEHDR*            lpWaveHdr;
 117
 118     while (ALSA_RetrieveRingMessage(&wwi->msgRing, &tmp_msg, &tmp_param, &tmp_ev)) {
 119         if (tmp_msg == WINE_WM_HEADER) {
 120             LPWAVEHDR*  wh;
 121             lpWaveHdr = (LPWAVEHDR)tmp_param;
 122             lpWaveHdr->lpNext = 0;
 123
 124             if (wwi->lpQueuePtr == 0)
 125                 wwi->lpQueuePtr = lpWaveHdr;
 126             else {
 127                 for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 128                 *wh = lpWaveHdr;
 129             }
 130         } else {
 131             ERR("should only have headers left\n");
 132         }
 133     }
 134 }
 135
 136 /**************************************************************************
 137  *                              widRecorder                     [internal]
 138  */
 139 static  DWORD   CALLBACK        widRecorder(LPVOID pmt)
 140 {
 141     WORD                uDevID = (DWORD_PTR)pmt;
 142     WINE_WAVEDEV*       wwi = &WInDev[uDevID];
 143     WAVEHDR*            lpWaveHdr;
 144     DWORD               dwSleepTime;
 145     DWORD               bytesRead;
 146     enum win_wm_message msg;
 147     DWORD_PTR           param;
 148     HANDLE              ev;
 149
 150     wwi->state = WINE_WS_STOPPED;
 151     InterlockedExchange((LONG*)&wwi->dwTotalRecorded, 0);
 152     wwi->lpQueuePtr = NULL;
 153
 154     SetEvent(wwi->hStartUpEvent);
 155
 156     /* make sleep time to be # of ms to output a period */
 157     dwSleepTime = (wwi->dwPeriodSize * 1000) / wwi->format.Format.nAvgBytesPerSec;
 158     TRACE("sleeptime=%d ms, total buffer length=%d ms (%d bytes)\n", dwSleepTime, wwi->dwBufferSize * 1000 / wwi->format.Format.nAvgBytesPerSec, wwi->dwBufferSize);
 159
 160     for (;;) {
 161         /* wait for dwSleepTime or an event in thread's queue */
 162         if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING)
 163         {
 164             DWORD frames;
 165             DWORD bytes;
 166             DWORD read;
 167
 168             lpWaveHdr = wwi->lpQueuePtr;
 169             /* read all the fragments accumulated so far */
 170             frames = snd_pcm_avail_update(wwi->pcm);
 171             bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
 172
 173             TRACE("frames = %d  bytes = %d state=%d\n", frames, bytes, snd_pcm_state(wwi->pcm));
 174             if (snd_pcm_state(wwi->pcm) == SND_PCM_STATE_XRUN)
 175             {
 176                 FIXME("Recovering from XRUN!\n");
 177                 snd_pcm_prepare(wwi->pcm);
 178                 frames = snd_pcm_avail_update(wwi->pcm);
 179                 bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
 180                 snd_pcm_start(wwi->pcm);
 181                 snd_pcm_forward(wwi->pcm, frames - snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize));
 182                 continue;
 183             }
 184             while (frames > 0 && wwi->lpQueuePtr)
 185             {
 186                 TRACE("bytes = %d\n", bytes);
 187                 if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded < bytes)
 188                 {
 189                     bytes = lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded;
 190                     frames = snd_pcm_bytes_to_frames(wwi->pcm, bytes);
 191                 }
 192                 /* directly read fragment in wavehdr */
 193                 read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames);
 194                 bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
 195
 196                 TRACE("bytesRead=(%d(%d)/(%d)) -> (%d/%d)\n", bytesRead, read, frames, lpWaveHdr->dwBufferLength, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
 197                 if (read != (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                     frames -= read;
 203                     bytes -= bytesRead;
 204
 205                     /* buffer is full. notify client */
 206                     if (!snd_pcm_bytes_to_frames(wwi->pcm, lpWaveHdr->dwBytesRecorded - lpWaveHdr->dwBufferLength))
 207                     {
 208                         /* must copy the value of next waveHdr, because we have no idea of what
 209                          * will be done with the content of lpWaveHdr in callback
 210                          */
 211                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
 212
 213                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 214                         lpWaveHdr->dwFlags |=  WHDR_DONE;
 215
 216                         wwi->lpQueuePtr = lpNext;
 217                         widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
 218                         lpWaveHdr = lpNext;
 219                     }
 220                 } else {
 221                     WARN("read(%s, %p, %d) failed (%d/%s)\n", wwi->pcmname,
 222                         lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
 223                         frames, frames, snd_strerror(read));
 224                 }
 225             }
 226         }
 227
 228         ALSA_WaitRingMessage(&wwi->msgRing, dwSleepTime);
 229
 230         while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev))
 231         {
 232             TRACE("msg=%s param=0x%lx\n", ALSA_getCmdString(msg), param);
 233             switch (msg) {
 234             case WINE_WM_PAUSING:
 235                 wwi->state = WINE_WS_PAUSED;
 236                 /*FIXME("Device should stop recording\n");*/
 237                 SetEvent(ev);
 238                 break;
 239             case WINE_WM_STARTING:
 240                 wwi->state = WINE_WS_PLAYING;
 241                 snd_pcm_start(wwi->pcm);
 242                 SetEvent(ev);
 243                 break;
 244             case WINE_WM_HEADER:
 245                 lpWaveHdr = (LPWAVEHDR)param;
 246                 lpWaveHdr->lpNext = 0;
 247
 248                 /* insert buffer at the end of queue */
 249                 {
 250                     LPWAVEHDR*  wh;
 251                     for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 252                     *wh = lpWaveHdr;
 253                 }
 254                 break;
 255             case WINE_WM_STOPPING:
 256                 if (wwi->state != WINE_WS_STOPPED)
 257                 {
 258                     snd_pcm_drain(wwi->pcm);
 259
 260                     /* read any headers in queue */
 261                     widRecorder_ReadHeaders(wwi);
 262
 263                     /* return current buffer to app */
 264                     lpWaveHdr = wwi->lpQueuePtr;
 265                     if (lpWaveHdr)
 266                     {
 267                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
 268                         TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 269                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 270                         lpWaveHdr->dwFlags |= WHDR_DONE;
 271                         wwi->lpQueuePtr = lpNext;
 272                         widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
 273                     }
 274                 }
 275                 wwi->state = WINE_WS_STOPPED;
 276                 SetEvent(ev);
 277                 break;
 278             case WINE_WM_RESETTING:
 279                 if (wwi->state != WINE_WS_STOPPED)
 280                 {
 281                     snd_pcm_drain(wwi->pcm);
 282                 }
 283                 wwi->state = WINE_WS_STOPPED;
 284                 wwi->dwTotalRecorded = 0;
 285
 286                 /* read any headers in queue */
 287                 widRecorder_ReadHeaders(wwi);
 288
 289                 /* return all buffers to the app */
 290                 while (wwi->lpQueuePtr) {
 291                     lpWaveHdr = wwi->lpQueuePtr;
 292                     TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 293                     wwi->lpQueuePtr = lpWaveHdr->lpNext;
 294                     lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 295                     lpWaveHdr->dwFlags |= WHDR_DONE;
 296                     widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
 297                 }
 298
 299                 SetEvent(ev);
 300                 break;
 301             case WINE_WM_CLOSING:
 302                 wwi->hThread = 0;
 303                 wwi->state = WINE_WS_CLOSED;
 304                 SetEvent(ev);
 305                 ExitThread(0);
 306                 /* shouldn't go here */
 307             default:
 308                 FIXME("unknown message %d\n", msg);
 309                 break;
 310             }
 311         }
 312     }
 313     ExitThread(0);
 314     /* just for not generating compilation warnings... should never be executed */
 315     return 0;
 316 }
 317
 318 /**************************************************************************
 319  *                              widOpen                         [internal]
 320  */
 321 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 322 {
 323     WINE_WAVEDEV*               wwi;
 324     snd_pcm_hw_params_t *       hw_params;
 325     snd_pcm_sw_params_t *       sw_params;
 326     snd_pcm_access_t            access;
 327     snd_pcm_format_t            format;
 328     unsigned int                rate;
 329     unsigned int                buffer_time = 500000;
 330     unsigned int                period_time = 10000;
 331     snd_pcm_uframes_t           buffer_size;
 332     snd_pcm_uframes_t           period_size;
 333     int                         flags;
 334     snd_pcm_t *                 pcm;
 335     int                         err;
 336     int                         dir;
 337     DWORD                       ret;
 338
 339     /* JPW TODO - review this code */
 340     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 341     if (lpDesc == NULL) {
 342         WARN("Invalid Parameter !\n");
 343         return MMSYSERR_INVALPARAM;
 344     }
 345     if (wDevID >= ALSA_WidNumDevs) {
 346         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 347         return MMSYSERR_BADDEVICEID;
 348     }
 349
 350     /* only PCM format is supported so far... */
 351     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 352         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 353              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 354              lpDesc->lpFormat->nSamplesPerSec);
 355         return WAVERR_BADFORMAT;
 356     }
 357
 358     if (dwFlags & WAVE_FORMAT_QUERY) {
 359         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 360              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 361              lpDesc->lpFormat->nSamplesPerSec);
 362         return MMSYSERR_NOERROR;
 363     }
 364
 365     wwi = &WInDev[wDevID];
 366
 367     if (wwi->pcm != NULL) {
 368         WARN("already allocated\n");
 369         return MMSYSERR_ALLOCATED;
 370     }
 371
 372     flags = SND_PCM_NONBLOCK;
 373
 374     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
 375     {
 376         ERR("Error open: %s\n", snd_strerror(err));
 377         return MMSYSERR_NOTENABLED;
 378     }
 379
 380     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 381
 382     wwi->waveDesc = *lpDesc;
 383     ALSA_copyFormat(lpDesc->lpFormat, &wwi->format);
 384
 385     if (wwi->format.Format.wBitsPerSample == 0) {
 386         WARN("Resetting zeroed wBitsPerSample\n");
 387         wwi->format.Format.wBitsPerSample = 8 *
 388             (wwi->format.Format.nAvgBytesPerSec /
 389              wwi->format.Format.nSamplesPerSec) /
 390             wwi->format.Format.nChannels;
 391     }
 392
 393     hw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_hw_params_sizeof() );
 394     sw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof() );
 395     if (!hw_params || !sw_params)
 396     {
 397         ret = MMSYSERR_NOMEM;
 398         goto error;
 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
 495     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 496     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
 497
 498     ALSA_InitRingMessage(&wwi->msgRing);
 499
 500     wwi->dwPeriodSize = snd_pcm_frames_to_bytes(pcm, period_size);
 501     TRACE("dwPeriodSize=%u\n", wwi->dwPeriodSize);
 502     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 503           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
 504           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
 505           wwi->format.Format.nBlockAlign);
 506
 507     wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 508     wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD_PTR)wDevID, 0, &(wwi->dwThreadID));
 509     if (!wwi->hThread) {
 510         ERR("Thread creation for the widRecorder failed!\n");
 511         CloseHandle(wwi->hStartUpEvent);
 512         ret = MMSYSERR_NOMEM;
 513         goto error;
 514     }
 515     SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 516     WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
 517     CloseHandle(wwi->hStartUpEvent);
 518     wwi->hStartUpEvent = NULL;
 519
 520     HeapFree( GetProcessHeap(), 0, sw_params );
 521     wwi->hw_params = hw_params;
 522     wwi->pcm = pcm;
 523
 524     widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
 525     return MMSYSERR_NOERROR;
 526
 527 error:
 528     snd_pcm_close(pcm);
 529     HeapFree( GetProcessHeap(), 0, hw_params );
 530     HeapFree( GetProcessHeap(), 0, sw_params );
 531     if (wwi->msgRing.ring_buffer_size > 0)
 532         ALSA_DestroyRingMessage(&wwi->msgRing);
 533     return ret;
 534 }
 535
 536
 537 /**************************************************************************
 538  *                              widClose                        [internal]
 539  */
 540 static DWORD widClose(WORD wDevID)
 541 {
 542     WINE_WAVEDEV*       wwi;
 543
 544     TRACE("(%u);\n", wDevID);
 545
 546     if (wDevID >= ALSA_WidNumDevs) {
 547         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 548         return MMSYSERR_BADDEVICEID;
 549     }
 550
 551     wwi = &WInDev[wDevID];
 552     if (wwi->pcm == NULL) {
 553         WARN("Requested to close already closed device %d!\n", wDevID);
 554         return MMSYSERR_BADDEVICEID;
 555     }
 556
 557     if (wwi->lpQueuePtr) {
 558         WARN("buffers still playing !\n");
 559         return WAVERR_STILLPLAYING;
 560     } else {
 561         if (wwi->hThread) {
 562             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
 563         }
 564         ALSA_DestroyRingMessage(&wwi->msgRing);
 565
 566         HeapFree( GetProcessHeap(), 0, wwi->hw_params );
 567         wwi->hw_params = NULL;
 568
 569         snd_pcm_close(wwi->pcm);
 570         wwi->pcm = NULL;
 571
 572         widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
 573     }
 574
 575     return MMSYSERR_NOERROR;
 576 }
 577
 578 /**************************************************************************
 579  *                              widAddBuffer                    [internal]
 580  *
 581  */
 582 static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 583 {
 584     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 585
 586     /* first, do the sanity checks... */
 587     if (wDevID >= ALSA_WidNumDevs) {
 588         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 589         return MMSYSERR_BADDEVICEID;
 590     }
 591
 592     if (WInDev[wDevID].pcm == NULL) {
 593         WARN("Requested to add buffer to already closed device %d!\n", wDevID);
 594         return MMSYSERR_BADDEVICEID;
 595     }
 596
 597     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
 598         return WAVERR_UNPREPARED;
 599
 600     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
 601         return WAVERR_STILLPLAYING;
 602
 603     lpWaveHdr->dwFlags &= ~WHDR_DONE;
 604     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
 605     lpWaveHdr->dwBytesRecorded = 0;
 606     lpWaveHdr->lpNext = 0;
 607
 608     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD_PTR)lpWaveHdr, FALSE);
 609
 610     return MMSYSERR_NOERROR;
 611 }
 612
 613 /**************************************************************************
 614  *                              widStart                        [internal]
 615  *
 616  */
 617 static DWORD widStart(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 618 {
 619     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 620
 621     /* first, do the sanity checks... */
 622     if (wDevID >= ALSA_WidNumDevs) {
 623         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 624         return MMSYSERR_BADDEVICEID;
 625     }
 626
 627     if (WInDev[wDevID].pcm == NULL) {
 628         WARN("Requested to start closed device %d!\n", wDevID);
 629         return MMSYSERR_BADDEVICEID;
 630     }
 631
 632     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STARTING, 0, TRUE);
 633
 634     return MMSYSERR_NOERROR;
 635 }
 636
 637 /**************************************************************************
 638  *                              widStop                 [internal]
 639  *
 640  */
 641 static DWORD widStop(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
 642 {
 643     TRACE("(%u, %p, %08X);\n", wDevID, lpWaveHdr, dwSize);
 644
 645     /* first, do the sanity checks... */
 646     if (wDevID >= ALSA_WidNumDevs) {
 647         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 648         return MMSYSERR_BADDEVICEID;
 649     }
 650
 651     if (WInDev[wDevID].pcm == NULL) {
 652         WARN("Requested to stop closed device %d!\n", wDevID);
 653         return MMSYSERR_BADDEVICEID;
 654     }
 655
 656     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STOPPING, 0, TRUE);
 657
 658     return MMSYSERR_NOERROR;
 659 }
 660
 661 /**************************************************************************
 662  *                      widReset                                [internal]
 663  */
 664 static DWORD widReset(WORD wDevID)
 665 {
 666     TRACE("(%u);\n", wDevID);
 667     if (wDevID >= ALSA_WidNumDevs) {
 668         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 669         return MMSYSERR_BADDEVICEID;
 670     }
 671
 672     if (WInDev[wDevID].pcm == NULL) {
 673         WARN("Requested to reset closed device %d!\n", wDevID);
 674         return MMSYSERR_BADDEVICEID;
 675     }
 676
 677     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
 678     return MMSYSERR_NOERROR;
 679 }
 680
 681 /**************************************************************************
 682  *                              widGetPosition                  [internal]
 683  */
 684 static DWORD widGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
 685 {
 686     WINE_WAVEDEV*       wwi;
 687
 688     TRACE("(%u, %p, %u);\n", wDevID, lpTime, uSize);
 689
 690     if (wDevID >= ALSA_WidNumDevs) {
 691         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 692         return MMSYSERR_BADDEVICEID;
 693     }
 694
 695     if (WInDev[wDevID].state == WINE_WS_CLOSED) {
 696         WARN("Requested position of closed device %d!\n", wDevID);
 697         return MMSYSERR_BADDEVICEID;
 698     }
 699
 700     if (lpTime == NULL) {
 701         WARN("invalid parameter: lpTime = NULL\n");
 702         return MMSYSERR_INVALPARAM;
 703     }
 704
 705     wwi = &WInDev[wDevID];
 706     return ALSA_bytes_to_mmtime(lpTime, wwi->dwTotalRecorded, &wwi->format);
 707 }
 708
 709 /**************************************************************************
 710  *                              widGetNumDevs                   [internal]
 711  */
 712 static  DWORD   widGetNumDevs(void)
 713 {
 714     return ALSA_WidNumDevs;
 715 }
 716
 717 /**************************************************************************
 718  *                              widDevInterfaceSize             [internal]
 719  */
 720 static DWORD widDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
 721 {
 722     TRACE("(%u, %p)\n", wDevID, dwParam1);
 723
 724     *dwParam1 = MultiByteToWideChar(CP_UNIXCP, 0, WInDev[wDevID].interface_name, -1,
 725                                     NULL, 0 ) * sizeof(WCHAR);
 726     return MMSYSERR_NOERROR;
 727 }
 728
 729 /**************************************************************************
 730  *                              widDevInterface                 [internal]
 731  */
 732 static DWORD widDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
 733 {
 734     if (dwParam2 >= MultiByteToWideChar(CP_UNIXCP, 0, WInDev[wDevID].interface_name, -1,
 735                                         NULL, 0 ) * sizeof(WCHAR))
 736     {
 737         MultiByteToWideChar(CP_UNIXCP, 0, WInDev[wDevID].interface_name, -1,
 738                             dwParam1, dwParam2 / sizeof(WCHAR));
 739         return MMSYSERR_NOERROR;
 740     }
 741     return MMSYSERR_INVALPARAM;
 742 }
 743
 744 /**************************************************************************
 745  *                              widMessage (WINEALSA.@)
 746  */
 747 DWORD WINAPI ALSA_widMessage(UINT wDevID, UINT wMsg, DWORD_PTR dwUser,
 748                              DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 749 {
 750     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
 751           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
 752
 753     switch (wMsg) {
 754     case DRVM_INIT:
 755         ALSA_WaveInit();
 756     case DRVM_EXIT:
 757     case DRVM_ENABLE:
 758     case DRVM_DISABLE:
 759         /* FIXME: Pretend this is supported */
 760         return 0;
 761     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
 762     case WIDM_CLOSE:            return widClose         (wDevID);
 763     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 764     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
 765     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
 766     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEINCAPSW)dwParam1,       dwParam2);
 767     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
 768     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
 769     case WIDM_RESET:            return widReset         (wDevID);
 770     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 771     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 772     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
 773     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
 774     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
 775     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
 776     default:
 777         FIXME("unknown message %d!\n", wMsg);
 778     }
 779     return MMSYSERR_NOTSUPPORTED;
 780 }