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