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 WINE_WAVEDEV    *WInDev;
  63 DWORD            ALSA_WidNumMallocedDevs;
  64 DWORD            ALSA_WidNumDevs;
  65
  66 /**************************************************************************
  67 *                       widNotifyClient                 [internal]
  68 */
  69 static void widNotifyClient(WINE_WAVEDEV* wwi, WORD wMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2)
  70 {
  71    TRACE("wMsg = 0x%04x dwParm1 = %04lX dwParam2 = %04lX\n", wMsg, dwParam1, dwParam2);
  72
  73    switch (wMsg) {
  74    case WIM_OPEN:
  75    case WIM_CLOSE:
  76    case WIM_DATA:
  77        if (wwi->wFlags != DCB_NULL &&
  78            !DriverCallback(wwi->waveDesc.dwCallback, wwi->wFlags, (HDRVR)wwi->waveDesc.hWave,
  79                            wMsg, wwi->waveDesc.dwInstance, dwParam1, dwParam2)) {
  80            WARN("can't notify client !\n");
  81        }
  82        break;
  83    default:
  84        FIXME("Unknown callback message %u\n", wMsg);
  85    }
  86 }
  87
  88 /**************************************************************************
  89  *                      widGetDevCaps                           [internal]
  90  */
  91 static DWORD widGetDevCaps(WORD wDevID, LPWAVEINCAPSW lpCaps, DWORD dwSize)
  92 {
  93     TRACE("(%u, %p, %u);\n", wDevID, lpCaps, dwSize);
  94
  95     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
  96
  97     if (wDevID >= ALSA_WidNumDevs) {
  98         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
  99         return MMSYSERR_BADDEVICEID;
 100     }
 101
 102     memcpy(lpCaps, &WInDev[wDevID].incaps, min(dwSize, sizeof(*lpCaps)));
 103     return MMSYSERR_NOERROR;
 104 }
 105
 106 /**************************************************************************
 107  *                              widRecorder_ReadHeaders         [internal]
 108  */
 109 static void widRecorder_ReadHeaders(WINE_WAVEDEV * wwi)
 110 {
 111     enum win_wm_message tmp_msg;
 112     DWORD_PTR           tmp_param;
 113     HANDLE              tmp_ev;
 114     WAVEHDR*            lpWaveHdr;
 115
 116     while (ALSA_RetrieveRingMessage(&wwi->msgRing, &tmp_msg, &tmp_param, &tmp_ev)) {
 117         if (tmp_msg == WINE_WM_HEADER) {
 118             LPWAVEHDR*  wh;
 119             lpWaveHdr = (LPWAVEHDR)tmp_param;
 120             lpWaveHdr->lpNext = 0;
 121
 122             if (wwi->lpQueuePtr == 0)
 123                 wwi->lpQueuePtr = lpWaveHdr;
 124             else {
 125                 for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 126                 *wh = lpWaveHdr;
 127             }
 128         } else {
 129             ERR("should only have headers left\n");
 130         }
 131     }
 132 }
 133
 134 /**************************************************************************
 135  *                              widRecorder                     [internal]
 136  */
 137 static  DWORD   CALLBACK        widRecorder(LPVOID pmt)
 138 {
 139     WORD                uDevID = (DWORD_PTR)pmt;
 140     WINE_WAVEDEV*       wwi = &WInDev[uDevID];
 141     WAVEHDR*            lpWaveHdr;
 142     DWORD               dwSleepTime;
 143     DWORD               bytesRead;
 144     enum win_wm_message msg;
 145     DWORD_PTR           param;
 146     HANDLE              ev;
 147
 148     wwi->state = WINE_WS_STOPPED;
 149     InterlockedExchange((LONG*)&wwi->dwTotalRecorded, 0);
 150     wwi->lpQueuePtr = NULL;
 151
 152     SetEvent(wwi->hStartUpEvent);
 153
 154     /* make sleep time to be # of ms to output a period */
 155     dwSleepTime = (wwi->dwPeriodSize * 1000) / wwi->format.Format.nAvgBytesPerSec;
 156     TRACE("sleeptime=%d ms, total buffer length=%d ms (%d bytes)\n", dwSleepTime, wwi->dwBufferSize * 1000 / wwi->format.Format.nAvgBytesPerSec, wwi->dwBufferSize);
 157
 158     for (;;) {
 159         /* wait for dwSleepTime or an event in thread's queue */
 160         if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING)
 161         {
 162             DWORD frames;
 163             DWORD bytes;
 164             DWORD read;
 165
 166             lpWaveHdr = wwi->lpQueuePtr;
 167             /* read all the fragments accumulated so far */
 168             frames = snd_pcm_avail_update(wwi->pcm);
 169             bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
 170
 171             TRACE("frames = %d  bytes = %d state=%d\n", frames, bytes, snd_pcm_state(wwi->pcm));
 172             if (snd_pcm_state(wwi->pcm) == SND_PCM_STATE_XRUN)
 173             {
 174                 FIXME("Recovering from XRUN!\n");
 175                 snd_pcm_prepare(wwi->pcm);
 176                 frames = snd_pcm_avail_update(wwi->pcm);
 177                 bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
 178                 snd_pcm_start(wwi->pcm);
 179                 snd_pcm_forward(wwi->pcm, frames - snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize));
 180                 continue;
 181             }
 182             while (frames > 0 && wwi->lpQueuePtr)
 183             {
 184                 TRACE("bytes = %d\n", bytes);
 185                 if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded < bytes)
 186                 {
 187                     bytes = lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded;
 188                     frames = snd_pcm_bytes_to_frames(wwi->pcm, bytes);
 189                 }
 190                 /* directly read fragment in wavehdr */
 191                 read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames);
 192                 bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
 193
 194                 TRACE("bytesRead=(%d(%d)/(%d)) -> (%d/%d)\n", bytesRead, read, frames, lpWaveHdr->dwBufferLength, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
 195                 if (read != (DWORD) -1)
 196                 {
 197                     /* update number of bytes recorded in current buffer and by this device */
 198                     lpWaveHdr->dwBytesRecorded += bytesRead;
 199                     InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, bytesRead);
 200                     frames -= read;
 201                     bytes -= bytesRead;
 202
 203                     /* buffer is full. notify client */
 204                     if (!snd_pcm_bytes_to_frames(wwi->pcm, lpWaveHdr->dwBytesRecorded - lpWaveHdr->dwBufferLength))
 205                     {
 206                         /* must copy the value of next waveHdr, because we have no idea of what
 207                          * will be done with the content of lpWaveHdr in callback
 208                          */
 209                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
 210
 211                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 212                         lpWaveHdr->dwFlags |=  WHDR_DONE;
 213
 214                         wwi->lpQueuePtr = lpNext;
 215                         widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
 216                         lpWaveHdr = lpNext;
 217                     }
 218                 } else {
 219                     WARN("read(%s, %p, %d) failed (%d/%s)\n", wwi->pcmname,
 220                         lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
 221                         frames, frames, snd_strerror(read));
 222                 }
 223             }
 224         }
 225
 226         ALSA_WaitRingMessage(&wwi->msgRing, dwSleepTime);
 227
 228         while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev))
 229         {
 230             TRACE("msg=%s param=0x%lx\n", ALSA_getCmdString(msg), param);
 231             switch (msg) {
 232             case WINE_WM_PAUSING:
 233                 wwi->state = WINE_WS_PAUSED;
 234                 /*FIXME("Device should stop recording\n");*/
 235                 SetEvent(ev);
 236                 break;
 237             case WINE_WM_STARTING:
 238                 wwi->state = WINE_WS_PLAYING;
 239                 snd_pcm_start(wwi->pcm);
 240                 SetEvent(ev);
 241                 break;
 242             case WINE_WM_HEADER:
 243                 lpWaveHdr = (LPWAVEHDR)param;
 244                 lpWaveHdr->lpNext = 0;
 245
 246                 /* insert buffer at the end of queue */
 247                 {
 248                     LPWAVEHDR*  wh;
 249                     for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
 250                     *wh = lpWaveHdr;
 251                 }
 252                 break;
 253             case WINE_WM_STOPPING:
 254                 if (wwi->state != WINE_WS_STOPPED)
 255                 {
 256                     snd_pcm_drain(wwi->pcm);
 257
 258                     /* read any headers in queue */
 259                     widRecorder_ReadHeaders(wwi);
 260
 261                     /* return current buffer to app */
 262                     lpWaveHdr = wwi->lpQueuePtr;
 263                     if (lpWaveHdr)
 264                     {
 265                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
 266                         TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 267                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 268                         lpWaveHdr->dwFlags |= WHDR_DONE;
 269                         wwi->lpQueuePtr = lpNext;
 270                         widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
 271                     }
 272                 }
 273                 wwi->state = WINE_WS_STOPPED;
 274                 SetEvent(ev);
 275                 break;
 276             case WINE_WM_RESETTING:
 277                 if (wwi->state != WINE_WS_STOPPED)
 278                 {
 279                     snd_pcm_drain(wwi->pcm);
 280                 }
 281                 wwi->state = WINE_WS_STOPPED;
 282                 wwi->dwTotalRecorded = 0;
 283
 284                 /* read any headers in queue */
 285                 widRecorder_ReadHeaders(wwi);
 286
 287                 /* return all buffers to the app */
 288                 while (wwi->lpQueuePtr) {
 289                     lpWaveHdr = wwi->lpQueuePtr;
 290                     TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
 291                     wwi->lpQueuePtr = lpWaveHdr->lpNext;
 292                     lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
 293                     lpWaveHdr->dwFlags |= WHDR_DONE;
 294                     widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0);
 295                 }
 296
 297                 SetEvent(ev);
 298                 break;
 299             case WINE_WM_CLOSING:
 300                 wwi->hThread = 0;
 301                 wwi->state = WINE_WS_CLOSED;
 302                 SetEvent(ev);
 303                 ExitThread(0);
 304                 /* shouldn't go here */
 305             default:
 306                 FIXME("unknown message %d\n", msg);
 307                 break;
 308             }
 309         }
 310     }
 311     ExitThread(0);
 312     /* just for not generating compilation warnings... should never be executed */
 313     return 0;
 314 }
 315
 316 /**************************************************************************
 317  *                              widOpen                         [internal]
 318  */
 319 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
 320 {
 321     WINE_WAVEDEV*               wwi;
 322     snd_pcm_hw_params_t *       hw_params;
 323     snd_pcm_sw_params_t *       sw_params;
 324     snd_pcm_access_t            access;
 325     snd_pcm_format_t            format;
 326     unsigned int                rate;
 327     unsigned int                buffer_time = 500000;
 328     unsigned int                period_time = 10000;
 329     snd_pcm_uframes_t           buffer_size;
 330     snd_pcm_uframes_t           period_size;
 331     int                         flags;
 332     snd_pcm_t *                 pcm;
 333     int                         err;
 334     int                         dir;
 335     DWORD                       ret;
 336
 337     /* JPW TODO - review this code */
 338     TRACE("(%u, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 339     if (lpDesc == NULL) {
 340         WARN("Invalid Parameter !\n");
 341         return MMSYSERR_INVALPARAM;
 342     }
 343     if (wDevID >= ALSA_WidNumDevs) {
 344         TRACE("Requested device %d, but only %d are known!\n", wDevID, ALSA_WidNumDevs);
 345         return MMSYSERR_BADDEVICEID;
 346     }
 347
 348     /* only PCM format is supported so far... */
 349     if (!ALSA_supportedFormat(lpDesc->lpFormat)) {
 350         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 351              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 352              lpDesc->lpFormat->nSamplesPerSec);
 353         return WAVERR_BADFORMAT;
 354     }
 355
 356     if (dwFlags & WAVE_FORMAT_QUERY) {
 357         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%d !\n",
 358              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
 359              lpDesc->lpFormat->nSamplesPerSec);
 360         return MMSYSERR_NOERROR;
 361     }
 362
 363     wwi = &WInDev[wDevID];
 364
 365     if (wwi->pcm != NULL) {
 366         WARN("already allocated\n");
 367         return MMSYSERR_ALLOCATED;
 368     }
 369
 370     flags = SND_PCM_NONBLOCK;
 371
 372     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
 373     {
 374         ERR("Error open: %s\n", snd_strerror(err));
 375         return MMSYSERR_NOTENABLED;
 376     }
 377
 378     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 379
 380     wwi->waveDesc = *lpDesc;
 381     ALSA_copyFormat(lpDesc->lpFormat, &wwi->format);
 382
 383     if (wwi->format.Format.wBitsPerSample == 0) {
 384         WARN("Resetting zeroed wBitsPerSample\n");
 385         wwi->format.Format.wBitsPerSample = 8 *
 386             (wwi->format.Format.nAvgBytesPerSec /
 387              wwi->format.Format.nSamplesPerSec) /
 388             wwi->format.Format.nChannels;
 389     }
 390
 391     hw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_hw_params_sizeof() );
 392     sw_params = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof() );
 393     if (!hw_params || !sw_params)
 394     {
 395         ret = MMSYSERR_NOMEM;
 396         goto error;
 397     }
 398     snd_pcm_hw_params_any(pcm, hw_params);
 399
 400 #define EXIT_ON_ERROR(f,e,txt) do \
 401 { \
 402     int err; \
 403     if ( (err = (f) ) < 0) \
 404     { \
 405         WARN(txt ": %s\n", snd_strerror(err)); \
 406         ret = (e); \
 407         goto error; \
 408     } \
 409 } while(0)
 410
 411     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
 412     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
 413         WARN("mmap not available. switching to standard write.\n");
 414         access = SND_PCM_ACCESS_RW_INTERLEAVED;
 415         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
 416         wwi->read = snd_pcm_readi;
 417     }
 418     else
 419         wwi->read = snd_pcm_mmap_readi;
 420
 421     EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwi->format.Format.nChannels), WAVERR_BADFORMAT, "unable to set required channels");
 422
 423     if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
 424         ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 425         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
 426         format = (wwi->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
 427                  (wwi->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
 428                  (wwi->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_3LE :
 429                  (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
 430     } else if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
 431         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
 432         format = (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
 433     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
 434         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
 435         ret = WAVERR_BADFORMAT;
 436         goto error;
 437     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
 438         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
 439         ret = WAVERR_BADFORMAT;
 440         goto error;
 441     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
 442         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
 443         ret = WAVERR_BADFORMAT;
 444         goto error;
 445     } else {
 446         ERR("invalid format: %0x04x\n", wwi->format.Format.wFormatTag);
 447         ret = WAVERR_BADFORMAT;
 448         goto error;
 449     }
 450
 451     EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format");
 452
 453     rate = wwi->format.Format.nSamplesPerSec;
 454     dir = 0;
 455     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
 456     if (err < 0) {
 457         WARN("Rate %d Hz not available for playback: %s\n", wwi->format.Format.nSamplesPerSec, snd_strerror(rate));
 458         ret = WAVERR_BADFORMAT;
 459         goto error;
 460     }
 461     if (!ALSA_NearMatch(rate, wwi->format.Format.nSamplesPerSec)) {
 462         WARN("Rate doesn't match (requested %d Hz, got %d Hz)\n", wwi->format.Format.nSamplesPerSec, rate);
 463         ret = WAVERR_BADFORMAT;
 464         goto error;
 465     }
 466
 467     dir=0;
 468     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
 469     dir=0;
 470     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
 471
 472     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
 473
 474     dir=0;
 475     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
 476     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
 477
 478     snd_pcm_sw_params_current(pcm, sw_params);
 479     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set start threshold");
 480     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
 481     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
 482     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
 483     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
 484 #undef EXIT_ON_ERROR
 485
 486     snd_pcm_prepare(pcm);
 487
 488     if (TRACE_ON(wave))
 489         ALSA_TraceParameters(hw_params, sw_params, FALSE);
 490
 491     /* now, we can save all required data for later use... */
 492
 493     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
 494     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
 495
 496     ALSA_InitRingMessage(&wwi->msgRing);
 497
 498     wwi->dwPeriodSize = snd_pcm_frames_to_bytes(pcm, period_size);
 499     TRACE("dwPeriodSize=%u\n", wwi->dwPeriodSize);
 500     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%u, nSamplesPerSec=%u, nChannels=%u nBlockAlign=%u!\n",
 501           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
 502           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
 503           wwi->format.Format.nBlockAlign);
 504
 505     wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 506     wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD_PTR)wDevID, 0, &(wwi->dwThreadID));
 507     if (!wwi->hThread) {
 508         ERR("Thread creation for the widRecorder failed!\n");
 509         CloseHandle(wwi->hStartUpEvent);
 510         ret = MMSYSERR_NOMEM;
 511         goto error;
 512     }
 513     SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
 514     WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
 515     CloseHandle(wwi->hStartUpEvent);
 516     wwi->hStartUpEvent = NULL;
 517
 518     HeapFree( GetProcessHeap(), 0, sw_params );
 519     wwi->hw_params = hw_params;
 520     wwi->pcm = pcm;
 521
 522     widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
 523     return MMSYSERR_NOERROR;
 524
 525 error:
 526     snd_pcm_close(pcm);
 527     HeapFree( GetProcessHeap(), 0, hw_params );
 528     HeapFree( GetProcessHeap(), 0, sw_params );
 529     if (wwi->msgRing.ring_buffer_size > 0)
 530         ALSA_DestroyRingMessage(&wwi->msgRing);
 531     return ret;
 532 }
 533
 534
 535 /**************************************************************************
 536  *                              widClose                        [internal]
 537  */
 538 static DWORD widClose(WORD wDevID)
 539 {
 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     wwi = &WInDev[wDevID];
 550     if (wwi->pcm == NULL) {
 551         WARN("Requested to close already closed device %d!\n", wDevID);
 552         return MMSYSERR_BADDEVICEID;
 553     }
 554
 555     if (wwi->lpQueuePtr) {
 556         WARN("buffers still playing !\n");
 557         return WAVERR_STILLPLAYING;
 558     } else {
 559         if (wwi->hThread) {
 560             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
 561         }
 562         ALSA_DestroyRingMessage(&wwi->msgRing);
 563
 564         HeapFree( GetProcessHeap(), 0, wwi->hw_params );
 565         wwi->hw_params = NULL;
 566
 567         snd_pcm_close(wwi->pcm);
 568         wwi->pcm = NULL;
 569
 570         widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
 571     }
 572
 573     return MMSYSERR_NOERROR;
 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_PTR)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_PTR dwUser,
 746                              DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 747 {
 748     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
 749           wDevID, ALSA_getMessage(wMsg), dwUser, dwParam1, dwParam2);
 750
 751     switch (wMsg) {
 752     case DRVM_INIT:
 753         ALSA_WaveInit();
 754     case DRVM_EXIT:
 755     case DRVM_ENABLE:
 756     case DRVM_DISABLE:
 757         /* FIXME: Pretend this is supported */
 758         return 0;
 759     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
 760     case WIDM_CLOSE:            return widClose         (wDevID);
 761     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 762     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
 763     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
 764     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEINCAPSW)dwParam1,       dwParam2);
 765     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
 766     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
 767     case WIDM_RESET:            return widReset         (wDevID);
 768     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 769     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
 770     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
 771     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
 772     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
 773     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
 774     default:
 775         FIXME("unknown message %d!\n", wMsg);
 776     }
 777     return MMSYSERR_NOTSUPPORTED;
 778 }