git.oblomov.eu Git - wine/blob - dlls/winmm/winealsa/audio.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2 /*
   3  * Sample Wine Driver for Advanced Linux Sound System (ALSA)
   4  *      Based on version <final> of the ALSA API
   5  *
   6  * Copyright    2002 Eric Pouech
   7  *              2002 Marco Pietrobono
   8  *              2003 Christian Costa : WaveIn support
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 /* unless someone makes a wineserver kernel module, Unix pipes are faster than win32 events */
  26 #define USE_PIPE_SYNC
  27
  28 #include "config.h"
  29 #include "wine/port.h"
  30
  31 #include <stdlib.h>
  32 #include <stdarg.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35 #ifdef HAVE_UNISTD_H
  36 # include <unistd.h>
  37 #endif
  38 #include <errno.h>
  39 #include <limits.h>
  40 #include <fcntl.h>
  41 #ifdef HAVE_SYS_IOCTL_H
  42 # include <sys/ioctl.h>
  43 #endif
  44 #ifdef HAVE_SYS_MMAN_H
  45 # include <sys/mman.h>
  46 #endif
  47 #include "windef.h"
  48 #include "winbase.h"
  49 #include "wingdi.h"
  50 #include "winerror.h"
  51 #include "winuser.h"
  52 #include "winnls.h"
  53 #include "winreg.h"
  54 #include "mmddk.h"
  55 #include "mmreg.h"
  56 #include "dsound.h"
  57 #include "dsdriver.h"
  58 #include "ks.h"
  59 #include "ksguid.h"
  60 #include "ksmedia.h"
  61 #define ALSA_PCM_NEW_HW_PARAMS_API
  62 #define ALSA_PCM_NEW_SW_PARAMS_API
  63 #include "alsa.h"
  64 #include "wine/library.h"
  65 #include "wine/unicode.h"
  66 #include "wine/debug.h"
  67
  68 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  69
  70
  71 #ifdef HAVE_ALSA
  72
  73 /* internal ALSALIB functions */
  74 /* FIXME:  we shouldn't be using internal functions... */
  75 snd_pcm_uframes_t _snd_pcm_mmap_hw_ptr(snd_pcm_t *pcm);
  76
  77
  78 /* state diagram for waveOut writing:
  79  *
  80  * +---------+-------------+---------------+---------------------------------+
  81  * |  state  |  function   |     event     |            new state            |
  82  * +---------+-------------+---------------+---------------------------------+
  83  * |         | open()      |               | STOPPED                         |
  84  * | PAUSED  | write()     |               | PAUSED                          |
  85  * | STOPPED | write()     | <thrd create> | PLAYING                         |
  86  * | PLAYING | write()     | HEADER        | PLAYING                         |
  87  * | (other) | write()     | <error>       |                                 |
  88  * | (any)   | pause()     | PAUSING       | PAUSED                          |
  89  * | PAUSED  | restart()   | RESTARTING    | PLAYING (if no thrd => STOPPED) |
  90  * | (any)   | reset()     | RESETTING     | STOPPED                         |
  91  * | (any)   | close()     | CLOSING       | CLOSED                          |
  92  * +---------+-------------+---------------+---------------------------------+
  93  */
  94
  95 /* states of the playing device */
  96 #define WINE_WS_PLAYING         0
  97 #define WINE_WS_PAUSED          1
  98 #define WINE_WS_STOPPED         2
  99 #define WINE_WS_CLOSED          3
 100
 101 /* events to be send to device */
 102 enum win_wm_message {
 103     WINE_WM_PAUSING = WM_USER + 1, WINE_WM_RESTARTING, WINE_WM_RESETTING, WINE_WM_HEADER,
 104     WINE_WM_UPDATE, WINE_WM_BREAKLOOP, WINE_WM_CLOSING, WINE_WM_STARTING, WINE_WM_STOPPING
 105 };
 106
 107 #ifdef USE_PIPE_SYNC
 108 #define SIGNAL_OMR(omr) do { int x = 0; write((omr)->msg_pipe[1], &x, sizeof(x)); } while (0)
 109 #define CLEAR_OMR(omr) do { int x = 0; read((omr)->msg_pipe[0], &x, sizeof(x)); } while (0)
 110 #define RESET_OMR(omr) do { } while (0)
 111 #define WAIT_OMR(omr, sleep) \
 112   do { struct pollfd pfd; pfd.fd = (omr)->msg_pipe[0]; \
 113        pfd.events = POLLIN; poll(&pfd, 1, sleep); } while (0)
 114 #else
 115 #define SIGNAL_OMR(omr) do { SetEvent((omr)->msg_event); } while (0)
 116 #define CLEAR_OMR(omr) do { } while (0)
 117 #define RESET_OMR(omr) do { ResetEvent((omr)->msg_event); } while (0)
 118 #define WAIT_OMR(omr, sleep) \
 119   do { WaitForSingleObject((omr)->msg_event, sleep); } while (0)
 120 #endif
 121
 122 typedef struct {
 123     enum win_wm_message         msg;    /* message identifier */
 124     DWORD                       param;  /* parameter for this message */
 125     HANDLE                      hEvent; /* if message is synchronous, handle of event for synchro */
 126 } ALSA_MSG;
 127
 128 /* implement an in-process message ring for better performance
 129  * (compared to passing thru the server)
 130  * this ring will be used by the input (resp output) record (resp playback) routine
 131  */
 132 #define ALSA_RING_BUFFER_INCREMENT      64
 133 typedef struct {
 134     ALSA_MSG                    * messages;
 135     int                         ring_buffer_size;
 136     int                         msg_tosave;
 137     int                         msg_toget;
 138 #ifdef USE_PIPE_SYNC
 139     int                         msg_pipe[2];
 140 #else
 141     HANDLE                      msg_event;
 142 #endif
 143     CRITICAL_SECTION            msg_crst;
 144 } ALSA_MSG_RING;
 145
 146 typedef struct {
 147     volatile int                state;                  /* one of the WINE_WS_ manifest constants */
 148     WAVEOPENDESC                waveDesc;
 149     WORD                        wFlags;
 150     WAVEFORMATPCMEX             format;
 151
 152     char*                       pcmname;                /* string name of alsa PCM device */
 153     char*                       ctlname;                /* string name of alsa control device */
 154     char                        interface_name[MAXPNAMELEN * 2];
 155
 156     snd_pcm_t*                  pcm;                    /* handle to ALSA playback device */
 157
 158     snd_pcm_hw_params_t *       hw_params;
 159
 160     DWORD                       dwBufferSize;           /* size of whole ALSA buffer in bytes */
 161     LPWAVEHDR                   lpQueuePtr;             /* start of queued WAVEHDRs (waiting to be notified) */
 162     LPWAVEHDR                   lpPlayPtr;              /* start of not yet fully played buffers */
 163
 164     LPWAVEHDR                   lpLoopPtr;              /* pointer of first buffer in loop, if any */
 165     DWORD                       dwLoops;                /* private copy of loop counter */
 166
 167     DWORD                       dwPlayedTotal;          /* number of bytes actually played since opening */
 168     DWORD                       dwWrittenTotal;         /* number of bytes written to ALSA buffer since opening */
 169
 170     /* synchronization stuff */
 171     HANDLE                      hStartUpEvent;
 172     HANDLE                      hThread;
 173     DWORD                       dwThreadID;
 174     ALSA_MSG_RING               msgRing;
 175
 176     /* DirectSound stuff */
 177     DSDRIVERDESC                ds_desc;
 178     DSDRIVERCAPS                ds_caps;
 179
 180     /* Waveout only fields */
 181     WAVEOUTCAPSW                outcaps;
 182
 183     snd_hctl_t *                hctl;                    /* control handle for the playback volume */
 184
 185     snd_pcm_sframes_t           (*write)(snd_pcm_t *, const void *, snd_pcm_uframes_t );
 186
 187     DWORD                       dwPartialOffset;        /* Offset of not yet written bytes in lpPlayPtr */
 188
 189     /* Wavein only fields */
 190
 191     WAVEINCAPSW                 incaps;
 192     DWORD                       dwSupport;
 193
 194     snd_pcm_sframes_t           (*read)(snd_pcm_t *, void *, snd_pcm_uframes_t );
 195
 196     DWORD                       dwPeriodSize;           /* size of OSS buffer period */
 197     DWORD                       dwTotalRecorded;
 198
 199 }   WINE_WAVEDEV;
 200
 201
 202 /*----------------------------------------------------------------------------
 203 **  Global array of output and input devices, initialized via ALSA_WaveInit
 204 */
 205 #define WAVEDEV_ALLOC_EXTENT_SIZE       10
 206 static WINE_WAVEDEV     *WOutDev;
 207 static DWORD            ALSA_WodNumMallocedDevs;
 208 static DWORD            ALSA_WodNumDevs;
 209
 210 static WINE_WAVEDEV     *WInDev;
 211 static DWORD            ALSA_WidNumMallocedDevs;
 212 static DWORD            ALSA_WidNumDevs;
 213
 214 static DWORD wodDsCreate(UINT wDevID, PIDSDRIVER* drv);
 215 static DWORD wodDsDesc(UINT wDevID, PDSDRIVERDESC desc);
 216
 217
 218 /*======================================================================*
 219  *                  Utility functions                                   *
 220  *======================================================================*/
 221
 222 /* These strings used only for tracing */
 223 static const char * getCmdString(enum win_wm_message msg)
 224 {
 225     static char unknown[32];
 226 #define MSG_TO_STR(x) case x: return #x
 227     switch(msg) {
 228     MSG_TO_STR(WINE_WM_PAUSING);
 229     MSG_TO_STR(WINE_WM_RESTARTING);
 230     MSG_TO_STR(WINE_WM_RESETTING);
 231     MSG_TO_STR(WINE_WM_HEADER);
 232     MSG_TO_STR(WINE_WM_UPDATE);
 233     MSG_TO_STR(WINE_WM_BREAKLOOP);
 234     MSG_TO_STR(WINE_WM_CLOSING);
 235     MSG_TO_STR(WINE_WM_STARTING);
 236     MSG_TO_STR(WINE_WM_STOPPING);
 237     }
 238 #undef MSG_TO_STR
 239     sprintf(unknown, "UNKNOWN(0x%08x)", msg);
 240     return unknown;
 241 }
 242
 243 static const char * getMessage(UINT msg)
 244 {
 245     static char unknown[32];
 246 #define MSG_TO_STR(x) case x: return #x
 247     switch(msg) {
 248     MSG_TO_STR(DRVM_INIT);
 249     MSG_TO_STR(DRVM_EXIT);
 250     MSG_TO_STR(DRVM_ENABLE);
 251     MSG_TO_STR(DRVM_DISABLE);
 252     MSG_TO_STR(WIDM_OPEN);
 253     MSG_TO_STR(WIDM_CLOSE);
 254     MSG_TO_STR(WIDM_ADDBUFFER);
 255     MSG_TO_STR(WIDM_PREPARE);
 256     MSG_TO_STR(WIDM_UNPREPARE);
 257     MSG_TO_STR(WIDM_GETDEVCAPS);
 258     MSG_TO_STR(WIDM_GETNUMDEVS);
 259     MSG_TO_STR(WIDM_GETPOS);
 260     MSG_TO_STR(WIDM_RESET);
 261     MSG_TO_STR(WIDM_START);
 262     MSG_TO_STR(WIDM_STOP);
 263     MSG_TO_STR(WODM_OPEN);
 264     MSG_TO_STR(WODM_CLOSE);
 265     MSG_TO_STR(WODM_WRITE);
 266     MSG_TO_STR(WODM_PAUSE);
 267     MSG_TO_STR(WODM_GETPOS);
 268     MSG_TO_STR(WODM_BREAKLOOP);
 269     MSG_TO_STR(WODM_PREPARE);
 270     MSG_TO_STR(WODM_UNPREPARE);
 271     MSG_TO_STR(WODM_GETDEVCAPS);
 272     MSG_TO_STR(WODM_GETNUMDEVS);
 273     MSG_TO_STR(WODM_GETPITCH);
 274     MSG_TO_STR(WODM_SETPITCH);
 275     MSG_TO_STR(WODM_GETPLAYBACKRATE);
 276     MSG_TO_STR(WODM_SETPLAYBACKRATE);
 277     MSG_TO_STR(WODM_GETVOLUME);
 278     MSG_TO_STR(WODM_SETVOLUME);
 279     MSG_TO_STR(WODM_RESTART);
 280     MSG_TO_STR(WODM_RESET);
 281     MSG_TO_STR(DRV_QUERYDEVICEINTERFACESIZE);
 282     MSG_TO_STR(DRV_QUERYDEVICEINTERFACE);
 283     MSG_TO_STR(DRV_QUERYDSOUNDIFACE);
 284     MSG_TO_STR(DRV_QUERYDSOUNDDESC);
 285     }
 286 #undef MSG_TO_STR
 287     sprintf(unknown, "UNKNOWN(0x%04x)", msg);
 288     return unknown;
 289 }
 290
 291 static const char * getFormat(WORD wFormatTag)
 292 {
 293     static char unknown[32];
 294 #define FMT_TO_STR(x) case x: return #x
 295     switch(wFormatTag) {
 296     FMT_TO_STR(WAVE_FORMAT_PCM);
 297     FMT_TO_STR(WAVE_FORMAT_EXTENSIBLE);
 298     FMT_TO_STR(WAVE_FORMAT_MULAW);
 299     FMT_TO_STR(WAVE_FORMAT_ALAW);
 300     FMT_TO_STR(WAVE_FORMAT_ADPCM);
 301     }
 302 #undef FMT_TO_STR
 303     sprintf(unknown, "UNKNOWN(0x%04x)", wFormatTag);
 304     return unknown;
 305 }
 306
 307 /* Allow 1% deviation for sample rates (some ES137x cards) */
 308 static BOOL NearMatch(int rate1, int rate2)
 309 {
 310     return (((100 * (rate1 - rate2)) / rate1) == 0);
 311 }
 312
 313 static DWORD bytes_to_mmtime(LPMMTIME lpTime, DWORD position,
 314                              WAVEFORMATPCMEX* format)
 315 {
 316     TRACE("wType=%04X wBitsPerSample=%u nSamplesPerSec=%lu nChannels=%u nAvgBytesPerSec=%lu\n",
 317           lpTime->wType, format->Format.wBitsPerSample, format->Format.nSamplesPerSec,
 318           format->Format.nChannels, format->Format.nAvgBytesPerSec);
 319     TRACE("Position in bytes=%lu\n", position);
 320
 321     switch (lpTime->wType) {
 322     case TIME_SAMPLES:
 323         lpTime->u.sample = position / (format->Format.wBitsPerSample / 8 * format->Format.nChannels);
 324         TRACE("TIME_SAMPLES=%lu\n", lpTime->u.sample);
 325         break;
 326     case TIME_MS:
 327         lpTime->u.ms = 1000.0 * position / (format->Format.wBitsPerSample / 8 * format->Format.nChannels * format->Format.nSamplesPerSec);
 328         TRACE("TIME_MS=%lu\n", lpTime->u.ms);
 329         break;
 330     case TIME_SMPTE:
 331         lpTime->u.smpte.fps = 30;
 332         position = position / (format->Format.wBitsPerSample / 8 * format->Format.nChannels);
 333         position += (format->Format.nSamplesPerSec / lpTime->u.smpte.fps) - 1; /* round up */
 334         lpTime->u.smpte.sec = position / format->Format.nSamplesPerSec;
 335         position -= lpTime->u.smpte.sec * format->Format.nSamplesPerSec;
 336         lpTime->u.smpte.min = lpTime->u.smpte.sec / 60;
 337         lpTime->u.smpte.sec -= 60 * lpTime->u.smpte.min;
 338         lpTime->u.smpte.hour = lpTime->u.smpte.min / 60;
 339         lpTime->u.smpte.min -= 60 * lpTime->u.smpte.hour;
 340         lpTime->u.smpte.fps = 30;
 341         lpTime->u.smpte.frame = position * lpTime->u.smpte.fps / format->Format.nSamplesPerSec;
 342         TRACE("TIME_SMPTE=%02u:%02u:%02u:%02u\n",
 343               lpTime->u.smpte.hour, lpTime->u.smpte.min,
 344               lpTime->u.smpte.sec, lpTime->u.smpte.frame);
 345         break;
 346     default:
 347         WARN("Format %d not supported, using TIME_BYTES !\n", lpTime->wType);
 348         lpTime->wType = TIME_BYTES;
 349         /* fall through */
 350     case TIME_BYTES:
 351         lpTime->u.cb = position;
 352         TRACE("TIME_BYTES=%lu\n", lpTime->u.cb);
 353         break;
 354     }
 355     return MMSYSERR_NOERROR;
 356 }
 357
 358 static BOOL supportedFormat(LPWAVEFORMATEX wf)
 359 {
 360     TRACE("(%p)\n",wf);
 361
 362     if (wf->nSamplesPerSec<DSBFREQUENCY_MIN||wf->nSamplesPerSec>DSBFREQUENCY_MAX)
 363         return FALSE;
 364
 365     if (wf->wFormatTag == WAVE_FORMAT_PCM) {
 366         if (wf->nChannels==1||wf->nChannels==2) {
 367             if (wf->wBitsPerSample==8||wf->wBitsPerSample==16)
 368                 return TRUE;
 369         }
 370     } else if (wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE) {
 371         WAVEFORMATEXTENSIBLE    * wfex = (WAVEFORMATEXTENSIBLE *)wf;
 372
 373         if (wf->cbSize == 22 &&
 374             (IsEqualGUID(&wfex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM) ||
 375              IsEqualGUID(&wfex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))) {
 376             if (wf->nChannels>=1 && wf->nChannels<=6) {
 377                 if (wf->wBitsPerSample==wfex->Samples.wValidBitsPerSample) {
 378                     if (wf->wBitsPerSample==8||wf->wBitsPerSample==16||
 379                         wf->wBitsPerSample==24||wf->wBitsPerSample==32) {
 380                         return TRUE;
 381                     }
 382                 } else
 383                     WARN("wBitsPerSample != wValidBitsPerSample not supported yet\n");
 384             }
 385         } else
 386             WARN("only KSDATAFORMAT_SUBTYPE_PCM and KSDATAFORMAT_SUBTYPE_IEEE_FLOAT "
 387                  "supported\n");
 388     } else if (wf->wFormatTag == WAVE_FORMAT_MULAW || wf->wFormatTag == WAVE_FORMAT_ALAW) {
 389         if (wf->wBitsPerSample==8)
 390             return TRUE;
 391         else
 392             ERR("WAVE_FORMAT_MULAW and WAVE_FORMAT_ALAW wBitsPerSample must = 8\n");
 393
 394     } else if (wf->wFormatTag == WAVE_FORMAT_ADPCM) {
 395         if (wf->wBitsPerSample==4)
 396             return TRUE;
 397         else
 398             ERR("WAVE_FORMAT_ADPCM wBitsPerSample must = 4\n");
 399     } else
 400         WARN("only WAVE_FORMAT_PCM and WAVE_FORMAT_EXTENSIBLE supported\n");
 401
 402     return FALSE;
 403 }
 404
 405 static void copy_format(LPWAVEFORMATEX wf1, LPWAVEFORMATPCMEX wf2)
 406 {
 407     unsigned int iLength;
 408
 409     ZeroMemory(wf2, sizeof(wf2));
 410     if (wf1->wFormatTag == WAVE_FORMAT_PCM)
 411         iLength = sizeof(PCMWAVEFORMAT);
 412     else if (wf1->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
 413         iLength = sizeof(WAVEFORMATPCMEX);
 414     else
 415         iLength = sizeof(WAVEFORMATEX) + wf1->cbSize;
 416     if (iLength > sizeof(WAVEFORMATPCMEX)) {
 417         ERR("calculated %u bytes, capping to %u bytes\n", iLength, sizeof(WAVEFORMATPCMEX));
 418         iLength = sizeof(WAVEFORMATPCMEX);
 419     }
 420     memcpy(wf2, wf1, iLength);
 421 }
 422
 423 /*----------------------------------------------------------------------------
 424 ** ALSA_RegGetString
 425 **  Retrieve a string from a registry key
 426 */
 427 static int ALSA_RegGetString(HKEY key, const char *value, char **bufp)
 428 {
 429     DWORD rc;
 430     DWORD type;
 431     DWORD bufsize;
 432
 433     *bufp = NULL;
 434     rc = RegQueryValueExA(key, value, NULL, &type, NULL, &bufsize);
 435     if (rc != ERROR_SUCCESS)
 436         return(rc);
 437
 438     if (type != REG_SZ)
 439         return 1;
 440
 441     *bufp = HeapAlloc(GetProcessHeap(), 0, bufsize);
 442     if (! *bufp)
 443         return 1;
 444
 445     rc = RegQueryValueExA(key, value, NULL, NULL, (LPBYTE)*bufp, &bufsize);
 446     return rc;
 447 }
 448
 449 /*----------------------------------------------------------------------------
 450 ** ALSA_RegGetBoolean
 451 **  Get a string and interpret it as a boolean
 452 */
 453 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
 454 static int ALSA_RegGetBoolean(HKEY key, const char *value, BOOL *answer)
 455 {
 456     DWORD rc;
 457     char *buf = NULL;
 458
 459     rc = ALSA_RegGetString(key, value, &buf);
 460     if (buf)
 461     {
 462         *answer = FALSE;
 463         if (IS_OPTION_TRUE(*buf))
 464             *answer = TRUE;
 465
 466         HeapFree(GetProcessHeap(), 0, buf);
 467     }
 468
 469     return rc;
 470 }
 471
 472 /*----------------------------------------------------------------------------
 473 ** ALSA_RegGetBoolean
 474 **  Get a string and interpret it as a DWORD
 475 */
 476 static int ALSA_RegGetInt(HKEY key, const char *value, DWORD *answer)
 477 {
 478     DWORD rc;
 479     char *buf = NULL;
 480
 481     rc = ALSA_RegGetString(key, value, &buf);
 482     if (buf)
 483     {
 484         *answer = atoi(buf);
 485         HeapFree(GetProcessHeap(), 0, buf);
 486     }
 487
 488     return rc;
 489 }
 490
 491 /*======================================================================*
 492  *                  Low level WAVE implementation                       *
 493  *======================================================================*/
 494
 495 /*----------------------------------------------------------------------------
 496 **  ALSA_TestDeviceForWine
 497 **
 498 **      Test to see if a given device is sufficient for Wine.
 499 */
 500 static int ALSA_TestDeviceForWine(int card, int device,  snd_pcm_stream_t streamtype)
 501 {
 502     snd_pcm_t *pcm = NULL;
 503     char pcmname[256];
 504     int retcode;
 505     snd_pcm_hw_params_t *hwparams;
 506     char *reason = NULL;
 507     unsigned int rrate;
 508
 509
 510     /* Note that the plug: device masks out a lot of info, we want to avoid that */
 511     sprintf(pcmname, "hw:%d,%d", card, device);
 512     retcode = snd_pcm_open(&pcm, pcmname, streamtype, SND_PCM_NONBLOCK);
 513     if (retcode < 0)
 514     {
 515         /* Note that a busy device isn't automatically disqualified */
 516         if (retcode == (-1 * EBUSY))
 517             retcode = 0;
 518         goto exit;
 519     }
 520
 521     snd_pcm_hw_params_alloca(&hwparams);
 522
 523     retcode = snd_pcm_hw_params_any(pcm, hwparams);
 524     if (retcode < 0)
 525     {
 526         reason = "Could not retrieve hw_params";
 527         goto exit;
 528     }
 529
 530         /* set the count of channels */
 531     retcode = snd_pcm_hw_params_set_channels(pcm, hwparams, 2);
 532     if (retcode < 0)
 533     {
 534         reason = "Could not set channels";
 535         goto exit;
 536     }
 537
 538     rrate = 44100;
 539     retcode = snd_pcm_hw_params_set_rate_near(pcm, hwparams, &rrate, 0);
 540     if (retcode < 0)
 541     {
 542         reason = "Could not set rate";
 543         goto exit;
 544     }
 545
 546     if (rrate == 0)
 547     {
 548         reason = "Rate came back as 0";
 549         goto exit;
 550     }
 551
 552     /* write the parameters to device */
 553     retcode = snd_pcm_hw_params(pcm, hwparams);
 554     if (retcode < 0)
 555     {
 556         reason = "Could not set hwparams";
 557         goto exit;
 558     }
 559
 560     retcode = 0;
 561
 562 exit:
 563     if (pcm)
 564         snd_pcm_close(pcm);
 565
 566     if (retcode != 0 && retcode != (-1 * ENOENT))
 567         TRACE("Discarding card %d/device %d:  %s [%d(%s)]\n", card, device, reason, retcode, snd_strerror(retcode));
 568
 569     return retcode;
 570
 571 }
 572
 573 /**************************************************************************
 574  *                      ALSA_CheckSetVolume             [internal]
 575  *
 576  *  Helper function for Alsa volume queries.  This tries to simplify
 577  * the process of managing the volume.  All parameters are optional
 578  * (pass NULL to ignore or not use).
 579  *  Return values are MMSYSERR_NOERROR on success, or !0 on failure;
 580  * error codes are normalized into the possible documented return
 581  * values from waveOutGetVolume.
 582  */
 583 static int ALSA_CheckSetVolume(snd_hctl_t *hctl, int *out_left, int *out_right,
 584             int *out_min, int *out_max, int *out_step,
 585             int *new_left, int *new_right)
 586 {
 587     int rc = MMSYSERR_NOERROR;
 588     int value_count = 0;
 589     snd_hctl_elem_t *           elem = NULL;
 590     snd_ctl_elem_info_t *       eleminfop = NULL;
 591     snd_ctl_elem_value_t *      elemvaluep = NULL;
 592     snd_ctl_elem_id_t *         elemidp = NULL;
 593
 594
 595 #define EXIT_ON_ERROR(f,txt,exitcode) do \
 596 { \
 597     int err; \
 598     if ( (err = (f) ) < 0) \
 599     { \
 600         ERR(txt " failed: %s\n", snd_strerror(err)); \
 601         rc = exitcode; \
 602         goto out; \
 603     } \
 604 } while(0)
 605
 606     if (! hctl)
 607         return MMSYSERR_NOTSUPPORTED;
 608
 609     /* Allocate areas to return information about the volume */
 610     EXIT_ON_ERROR(snd_ctl_elem_id_malloc(&elemidp), "snd_ctl_elem_id_malloc", MMSYSERR_NOMEM);
 611     EXIT_ON_ERROR(snd_ctl_elem_value_malloc (&elemvaluep), "snd_ctl_elem_value_malloc", MMSYSERR_NOMEM);
 612     EXIT_ON_ERROR(snd_ctl_elem_info_malloc (&eleminfop), "snd_ctl_elem_info_malloc", MMSYSERR_NOMEM);
 613     snd_ctl_elem_id_clear(elemidp);
 614     snd_ctl_elem_value_clear(elemvaluep);
 615     snd_ctl_elem_info_clear(eleminfop);
 616
 617     /* Setup and find an element id that exactly matches the characteristic we want
 618     ** FIXME:  It is probably short sighted to hard code and fixate on PCM Playback Volume */
 619     snd_ctl_elem_id_set_name(elemidp, "PCM Playback Volume");
 620     snd_ctl_elem_id_set_interface(elemidp, SND_CTL_ELEM_IFACE_MIXER);
 621     elem = snd_hctl_find_elem(hctl, elemidp);
 622     if (elem)
 623     {
 624         /* Read and return volume information */
 625         EXIT_ON_ERROR(snd_hctl_elem_info(elem, eleminfop), "snd_hctl_elem_info", MMSYSERR_NOTSUPPORTED);
 626         value_count = snd_ctl_elem_info_get_count(eleminfop);
 627         if (out_min || out_max || out_step)
 628         {
 629             if (!snd_ctl_elem_info_is_readable(eleminfop))
 630             {
 631                 ERR("snd_ctl_elem_info_is_readable returned false; cannot return info\n");
 632                 rc = MMSYSERR_NOTSUPPORTED;
 633                 goto out;
 634             }
 635
 636             if (out_min)
 637                 *out_min = snd_ctl_elem_info_get_min(eleminfop);
 638
 639             if (out_max)
 640                 *out_max = snd_ctl_elem_info_get_max(eleminfop);
 641
 642             if (out_step)
 643                 *out_step = snd_ctl_elem_info_get_step(eleminfop);
 644         }
 645
 646         if (out_left || out_right)
 647         {
 648             EXIT_ON_ERROR(snd_hctl_elem_read(elem, elemvaluep), "snd_hctl_elem_read", MMSYSERR_NOTSUPPORTED);
 649
 650             if (out_left)
 651                 *out_left = snd_ctl_elem_value_get_integer(elemvaluep, 0);
 652
 653             if (out_right)
 654             {
 655                 if (value_count == 1)
 656                     *out_right = snd_ctl_elem_value_get_integer(elemvaluep, 0);
 657                 else if (value_count == 2)
 658                     *out_right = snd_ctl_elem_value_get_integer(elemvaluep, 1);
 659                 else
 660                 {
 661                     ERR("Unexpected value count %d from snd_ctl_elem_info_get_count while getting volume info\n", value_count);
 662                     rc = -1;
 663                     goto out;
 664                 }
 665             }
 666         }
 667
 668         /* Set the volume */
 669         if (new_left || new_right)
 670         {
 671             EXIT_ON_ERROR(snd_hctl_elem_read(elem, elemvaluep), "snd_hctl_elem_read", MMSYSERR_NOTSUPPORTED);
 672             if (new_left)
 673                 snd_ctl_elem_value_set_integer(elemvaluep, 0, *new_left);
 674             if (new_right)
 675             {
 676                 if (value_count == 1)
 677                     snd_ctl_elem_value_set_integer(elemvaluep, 0, *new_right);
 678                 else if (value_count == 2)
 679                     snd_ctl_elem_value_set_integer(elemvaluep, 1, *new_right);
 680                 else
 681                 {
 682                     ERR("Unexpected value count %d from snd_ctl_elem_info_get_count while setting volume info\n", value_count);
 683                     rc = -1;
 684                     goto out;
 685                 }
 686             }
 687
 688             EXIT_ON_ERROR(snd_hctl_elem_write(elem, elemvaluep), "snd_hctl_elem_write", MMSYSERR_NOTSUPPORTED);
 689         }
 690     }
 691     else
 692     {
 693         ERR("Could not find 'PCM Playback Volume' element\n");
 694         rc = MMSYSERR_NOTSUPPORTED;
 695     }
 696
 697
 698 #undef EXIT_ON_ERROR
 699
 700 out:
 701
 702     if (elemvaluep)
 703         snd_ctl_elem_value_free(elemvaluep);
 704     if (eleminfop)
 705         snd_ctl_elem_info_free(eleminfop);
 706     if (elemidp)
 707         snd_ctl_elem_id_free(elemidp);
 708
 709     return rc;
 710 }
 711
 712
 713 /**************************************************************************
 714  *                      ALSA_XRUNRecovery               [internal]
 715  *
 716  * used to recovery from XRUN errors (buffer underflow/overflow)
 717  */
 718 static int ALSA_XRUNRecovery(WINE_WAVEDEV * wwo, int err)
 719 {
 720     if (err == -EPIPE) {    /* under-run */
 721         err = snd_pcm_prepare(wwo->pcm);
 722         if (err < 0)
 723              ERR( "underrun recovery failed. prepare failed: %s\n", snd_strerror(err));
 724         return 0;
 725     } else if (err == -ESTRPIPE) {
 726         while ((err = snd_pcm_resume(wwo->pcm)) == -EAGAIN)
 727             sleep(1);       /* wait until the suspend flag is released */
 728         if (err < 0) {
 729             err = snd_pcm_prepare(wwo->pcm);
 730             if (err < 0)
 731                 ERR("recovery from suspend failed, prepare failed: %s\n", snd_strerror(err));
 732         }
 733         return 0;
 734     }
 735     return err;
 736 }
 737
 738 /**************************************************************************
 739  *                      ALSA_TraceParameters            [internal]
 740  *
 741  * used to trace format changes, hw and sw parameters
 742  */
 743 static void ALSA_TraceParameters(snd_pcm_hw_params_t * hw_params, snd_pcm_sw_params_t * sw, int full)
 744 {
 745     int err;
 746     snd_pcm_format_t   format;
 747     snd_pcm_access_t   access;
 748     err = snd_pcm_hw_params_get_access(hw_params, &access);
 749     err = snd_pcm_hw_params_get_format(hw_params, &format);
 750
 751 #define X(x) ((x)? "true" : "false")
 752     if (full)
 753         TRACE("FLAGS: sampleres=%s overrng=%s pause=%s resume=%s syncstart=%s batch=%s block=%s double=%s "
 754               "halfd=%s joint=%s\n",
 755               X(snd_pcm_hw_params_can_mmap_sample_resolution(hw_params)),
 756               X(snd_pcm_hw_params_can_overrange(hw_params)),
 757               X(snd_pcm_hw_params_can_pause(hw_params)),
 758               X(snd_pcm_hw_params_can_resume(hw_params)),
 759               X(snd_pcm_hw_params_can_sync_start(hw_params)),
 760               X(snd_pcm_hw_params_is_batch(hw_params)),
 761               X(snd_pcm_hw_params_is_block_transfer(hw_params)),
 762               X(snd_pcm_hw_params_is_double(hw_params)),
 763               X(snd_pcm_hw_params_is_half_duplex(hw_params)),
 764               X(snd_pcm_hw_params_is_joint_duplex(hw_params)));
 765 #undef X
 766
 767     if (access >= 0)
 768         TRACE("access=%s\n", snd_pcm_access_name(access));
 769     else
 770     {
 771         snd_pcm_access_mask_t * acmask;
 772         snd_pcm_access_mask_alloca(&acmask);
 773         snd_pcm_hw_params_get_access_mask(hw_params, acmask);
 774         for ( access = SND_PCM_ACCESS_MMAP_INTERLEAVED; access <= SND_PCM_ACCESS_LAST; access++)
 775             if (snd_pcm_access_mask_test(acmask, access))
 776                 TRACE("access=%s\n", snd_pcm_access_name(access));
 777     }
 778
 779     if (format >= 0)
 780     {
 781         TRACE("format=%s\n", snd_pcm_format_name(format));
 782
 783     }
 784     else
 785     {
 786         snd_pcm_format_mask_t *     fmask;
 787
 788         snd_pcm_format_mask_alloca(&fmask);
 789         snd_pcm_hw_params_get_format_mask(hw_params, fmask);
 790         for ( format = SND_PCM_FORMAT_S8; format <= SND_PCM_FORMAT_LAST ; format++)
 791             if ( snd_pcm_format_mask_test(fmask, format) )
 792                 TRACE("format=%s\n", snd_pcm_format_name(format));
 793     }
 794
 795     do {
 796       int err=0;
 797       unsigned int val=0;
 798       err = snd_pcm_hw_params_get_channels(hw_params, &val);
 799       if (err<0) {
 800         unsigned int min = 0;
 801         unsigned int max = 0;
 802         err = snd_pcm_hw_params_get_channels_min(hw_params, &min),
 803         err = snd_pcm_hw_params_get_channels_max(hw_params, &max);
 804         TRACE("channels_min=%u, channels_min_max=%u\n", min, max);
 805       } else {
 806         TRACE("channels=%d\n", val);
 807       }
 808     } while(0);
 809     do {
 810       int err=0;
 811       snd_pcm_uframes_t val=0;
 812       err = snd_pcm_hw_params_get_buffer_size(hw_params, &val);
 813       if (err<0) {
 814         snd_pcm_uframes_t min = 0;
 815         snd_pcm_uframes_t max = 0;
 816         err = snd_pcm_hw_params_get_buffer_size_min(hw_params, &min),
 817         err = snd_pcm_hw_params_get_buffer_size_max(hw_params, &max);
 818         TRACE("buffer_size_min=%lu, buffer_size_min_max=%lu\n", min, max);
 819       } else {
 820         TRACE("buffer_size=%lu\n", val);
 821       }
 822     } while(0);
 823
 824 #define X(x) do { \
 825 int err=0; \
 826 int dir=0; \
 827 unsigned int val=0; \
 828 err = snd_pcm_hw_params_get_##x(hw_params,&val, &dir); \
 829 if (err<0) { \
 830   unsigned int min = 0; \
 831   unsigned int max = 0; \
 832   err = snd_pcm_hw_params_get_##x##_min(hw_params, &min, &dir); \
 833   err = snd_pcm_hw_params_get_##x##_max(hw_params, &max, &dir); \
 834   TRACE(#x "_min=%u " #x "_max=%u\n", min, max); \
 835 } else \
 836     TRACE(#x "=%d\n", val); \
 837 } while(0)
 838
 839     X(rate);
 840     X(buffer_time);
 841     X(periods);
 842     do {
 843       int err=0;
 844       int dir=0;
 845       snd_pcm_uframes_t val=0;
 846       err = snd_pcm_hw_params_get_period_size(hw_params, &val, &dir);
 847       if (err<0) {
 848         snd_pcm_uframes_t min = 0;
 849         snd_pcm_uframes_t max = 0;
 850         err = snd_pcm_hw_params_get_period_size_min(hw_params, &min, &dir),
 851         err = snd_pcm_hw_params_get_period_size_max(hw_params, &max, &dir);
 852         TRACE("period_size_min=%lu, period_size_min_max=%lu\n", min, max);
 853       } else {
 854         TRACE("period_size=%lu\n", val);
 855       }
 856     } while(0);
 857
 858     X(period_time);
 859     X(tick_time);
 860 #undef X
 861
 862     if (!sw)
 863         return;
 864 }
 865
 866 /* return a string duplicated on the win32 process heap, free with HeapFree */
 867 static char* ALSA_strdup(const char *s) {
 868     char *result = HeapAlloc(GetProcessHeap(), 0, strlen(s)+1);
 869     if (!result)
 870         return NULL;
 871     strcpy(result, s);
 872     return result;
 873 }
 874
 875 #define ALSA_RETURN_ONFAIL(mycall)                                      \
 876 {                                                                       \
 877     int rc;                                                             \
 878     {rc = mycall;}                                                      \
 879     if ((rc) < 0)                                                       \
 880     {                                                                   \
 881         ERR("%s failed:  %s(%d)\n", #mycall, snd_strerror(rc), rc);     \
 882         return(rc);                                                     \
 883     }                                                                   \
 884 }
 885
 886 /*----------------------------------------------------------------------------
 887 **  ALSA_ComputeCaps
 888 **
 889 **      Given an ALSA PCM, figure out our HW CAPS structure info.
 890 **  ctl can be null, pcm is required, as is all output parms.
 891 **
 892 */
 893 static int ALSA_ComputeCaps(snd_ctl_t *ctl, snd_pcm_t *pcm,
 894         WORD *channels, DWORD *flags, DWORD *formats, DWORD *supports)
 895 {
 896     snd_pcm_hw_params_t *hw_params;
 897     snd_pcm_format_mask_t *fmask;
 898     snd_pcm_access_mask_t *acmask;
 899     unsigned int ratemin = 0;
 900     unsigned int ratemax = 0;
 901     unsigned int chmin = 0;
 902     unsigned int chmax = 0;
 903     int dir = 0;
 904
 905     snd_pcm_hw_params_alloca(&hw_params);
 906     ALSA_RETURN_ONFAIL(snd_pcm_hw_params_any(pcm, hw_params));
 907
 908     snd_pcm_format_mask_alloca(&fmask);
 909     snd_pcm_hw_params_get_format_mask(hw_params, fmask);
 910
 911     snd_pcm_access_mask_alloca(&acmask);
 912     ALSA_RETURN_ONFAIL(snd_pcm_hw_params_get_access_mask(hw_params, acmask));
 913
 914     ALSA_RETURN_ONFAIL(snd_pcm_hw_params_get_rate_min(hw_params, &ratemin, &dir));
 915     ALSA_RETURN_ONFAIL(snd_pcm_hw_params_get_rate_max(hw_params, &ratemax, &dir));
 916     ALSA_RETURN_ONFAIL(snd_pcm_hw_params_get_channels_min(hw_params, &chmin));
 917     ALSA_RETURN_ONFAIL(snd_pcm_hw_params_get_channels_max(hw_params, &chmax));
 918
 919 #define X(r,v) \
 920     if ( (r) >= ratemin && ( (r) <= ratemax || ratemax == -1) ) \
 921     { \
 922        if (snd_pcm_format_mask_test( fmask, SND_PCM_FORMAT_U8)) \
 923        { \
 924           if (chmin <= 1 && 1 <= chmax) \
 925               *formats |= WAVE_FORMAT_##v##M08; \
 926           if (chmin <= 2 && 2 <= chmax) \
 927               *formats |= WAVE_FORMAT_##v##S08; \
 928        } \
 929        if (snd_pcm_format_mask_test( fmask, SND_PCM_FORMAT_S16_LE)) \
 930        { \
 931           if (chmin <= 1 && 1 <= chmax) \
 932               *formats |= WAVE_FORMAT_##v##M16; \
 933           if (chmin <= 2 && 2 <= chmax) \
 934               *formats |= WAVE_FORMAT_##v##S16; \
 935        } \
 936     }
 937     X(11025,1);
 938     X(22050,2);
 939     X(44100,4);
 940     X(48000,48);
 941     X(96000,96);
 942 #undef X
 943
 944     if (chmin > 1)
 945         FIXME("Device has a minimum of %d channels\n", chmin);
 946     *channels = chmax;
 947
 948     /* FIXME: is sample accurate always true ?
 949     ** Can we do WAVECAPS_PITCH, WAVECAPS_SYNC, or WAVECAPS_PLAYBACKRATE? */
 950     *supports |= WAVECAPS_SAMPLEACCURATE;
 951
 952     /* FIXME: NONITERLEAVED and COMPLEX are not supported right now */
 953     if ( snd_pcm_access_mask_test( acmask, SND_PCM_ACCESS_MMAP_INTERLEAVED ) )
 954         *supports |= WAVECAPS_DIRECTSOUND;
 955
 956     /* check for volume control support */
 957     if (ctl) {
 958         *supports |= WAVECAPS_VOLUME;
 959
 960         if (chmin <= 2 && 2 <= chmax)
 961             *supports |= WAVECAPS_LRVOLUME;
 962     }
 963
 964     if (*formats & (WAVE_FORMAT_1M08  | WAVE_FORMAT_2M08  |
 965                                WAVE_FORMAT_4M08  | WAVE_FORMAT_48M08 |
 966                                WAVE_FORMAT_96M08 | WAVE_FORMAT_1M16  |
 967                                WAVE_FORMAT_2M16  | WAVE_FORMAT_4M16  |
 968                                WAVE_FORMAT_48M16 | WAVE_FORMAT_96M16) )
 969         *flags |= DSCAPS_PRIMARYMONO;
 970
 971     if (*formats & (WAVE_FORMAT_1S08  | WAVE_FORMAT_2S08  |
 972                                WAVE_FORMAT_4S08  | WAVE_FORMAT_48S08 |
 973                                WAVE_FORMAT_96S08 | WAVE_FORMAT_1S16  |
 974                                WAVE_FORMAT_2S16  | WAVE_FORMAT_4S16  |
 975                                WAVE_FORMAT_48S16 | WAVE_FORMAT_96S16) )
 976         *flags |= DSCAPS_PRIMARYSTEREO;
 977
 978     if (*formats & (WAVE_FORMAT_1M08  | WAVE_FORMAT_2M08  |
 979                                WAVE_FORMAT_4M08  | WAVE_FORMAT_48M08 |
 980                                WAVE_FORMAT_96M08 | WAVE_FORMAT_1S08  |
 981                                WAVE_FORMAT_2S08  | WAVE_FORMAT_4S08  |
 982                                WAVE_FORMAT_48S08 | WAVE_FORMAT_96S08) )
 983         *flags |= DSCAPS_PRIMARY8BIT;
 984
 985     if (*formats & (WAVE_FORMAT_1M16  | WAVE_FORMAT_2M16  |
 986                                WAVE_FORMAT_4M16  | WAVE_FORMAT_48M16 |
 987                                WAVE_FORMAT_96M16 | WAVE_FORMAT_1S16  |
 988                                WAVE_FORMAT_2S16  | WAVE_FORMAT_4S16  |
 989                                WAVE_FORMAT_48S16 | WAVE_FORMAT_96S16) )
 990         *flags |= DSCAPS_PRIMARY16BIT;
 991
 992     return(0);
 993 }
 994
 995 /*----------------------------------------------------------------------------
 996 **  ALSA_AddCommonDevice
 997 **
 998 **      Perform Alsa initialization common to both capture and playback
 999 **
1000 **  Side Effect:  ww->pcname and ww->ctlname may need to be freed.
1001 **
1002 **  Note:  this was originally coded by using snd_pcm_name(pcm), until
1003 **         I discovered that with at least one version of alsa lib,
1004 **         the use of a pcm named default:0 would cause snd_pcm_name() to fail.
1005 **         So passing the name in is logically extraneous.  Sigh.
1006 */
1007 static int ALSA_AddCommonDevice(snd_ctl_t *ctl, snd_pcm_t *pcm, const char *pcmname, WINE_WAVEDEV *ww)
1008 {
1009     snd_pcm_info_t *infop;
1010
1011     snd_pcm_info_alloca(&infop);
1012     ALSA_RETURN_ONFAIL(snd_pcm_info(pcm, infop));
1013
1014     if (pcm && pcmname)
1015         ww->pcmname = ALSA_strdup(pcmname);
1016     else
1017         return -1;
1018
1019     if (ctl && snd_ctl_name(ctl))
1020         ww->ctlname = ALSA_strdup(snd_ctl_name(ctl));
1021
1022     strcpy(ww->interface_name, "winealsa: ");
1023     memcpy(ww->interface_name + strlen(ww->interface_name),
1024             ww->pcmname,
1025             min(strlen(ww->pcmname), sizeof(ww->interface_name) - strlen("winealsa:   ")));
1026
1027     strcpy(ww->ds_desc.szDrvname, "winealsa.drv");
1028
1029     memcpy(ww->ds_desc.szDesc, snd_pcm_info_get_name(infop),
1030             min( (sizeof(ww->ds_desc.szDesc) - 1), strlen(snd_pcm_info_get_name(infop))) );
1031
1032     ww->ds_caps.dwMinSecondarySampleRate = DSBFREQUENCY_MIN;
1033     ww->ds_caps.dwMaxSecondarySampleRate = DSBFREQUENCY_MAX;
1034     ww->ds_caps.dwPrimaryBuffers = 1;
1035
1036     return 0;
1037 }
1038
1039 /*----------------------------------------------------------------------------
1040 ** ALSA_FreeDevice
1041 */
1042 static void ALSA_FreeDevice(WINE_WAVEDEV *ww)
1043 {
1044     if (ww->pcmname)
1045         HeapFree(GetProcessHeap(), 0, ww->pcmname);
1046     ww->pcmname = NULL;
1047
1048     if (ww->ctlname)
1049         HeapFree(GetProcessHeap(), 0, ww->ctlname);
1050     ww->ctlname = NULL;
1051 }
1052
1053 /*----------------------------------------------------------------------------
1054 **  ALSA_AddDeviceToArray
1055 **
1056 **      Dynamically size one of the wavein or waveout arrays of devices,
1057 **  and add a fully configured device node to the array.
1058 **
1059 */
1060 static int ALSA_AddDeviceToArray(WINE_WAVEDEV *ww, WINE_WAVEDEV **array,
1061         DWORD *count, DWORD *alloced, int isdefault)
1062 {
1063     int i = *count;
1064
1065     if (*count >= *alloced)
1066     {
1067         (*alloced) += WAVEDEV_ALLOC_EXTENT_SIZE;
1068         if (! (*array))
1069             *array = HeapAlloc(GetProcessHeap(), 0, sizeof(*ww) * (*alloced));
1070         else
1071             *array = HeapReAlloc(GetProcessHeap(), 0, *array, sizeof(*ww) * (*alloced));
1072
1073         if (!*array)
1074         {
1075             return -1;
1076         }
1077     }
1078
1079     /* If this is the default, arrange for it to be the first element */
1080     if (isdefault && i > 0)
1081     {
1082         (*array)[*count] = (*array)[0];
1083         i = 0;
1084     }
1085
1086     (*array)[i] = *ww;
1087
1088     (*count)++;
1089     return 0;
1090 }
1091
1092 /*----------------------------------------------------------------------------
1093 **  ALSA_AddPlaybackDevice
1094 **
1095 **      Add a given Alsa device to Wine's internal list of Playback
1096 **  devices.
1097 */
1098 static int ALSA_AddPlaybackDevice(snd_ctl_t *ctl, snd_pcm_t *pcm, const char *pcmname, int isdefault)
1099 {
1100     WINE_WAVEDEV    wwo;
1101     int rc;
1102
1103     memset(&wwo, '\0', sizeof(wwo));
1104
1105     rc = ALSA_AddCommonDevice(ctl, pcm, pcmname, &wwo);
1106     if (rc)
1107         return(rc);
1108
1109     MultiByteToWideChar(CP_ACP, 0, wwo.ds_desc.szDesc, -1,
1110                         wwo.outcaps.szPname, sizeof(wwo.outcaps.szPname)/sizeof(WCHAR));
1111     wwo.outcaps.szPname[sizeof(wwo.outcaps.szPname)/sizeof(WCHAR) - 1] = '\0';
1112
1113     wwo.outcaps.wMid = MM_CREATIVE;
1114     wwo.outcaps.wPid = MM_CREATIVE_SBP16_WAVEOUT;
1115     wwo.outcaps.vDriverVersion = 0x0100;
1116
1117     rc = ALSA_ComputeCaps(ctl, pcm, &wwo.outcaps.wChannels, &wwo.ds_caps.dwFlags,
1118             &wwo.outcaps.dwFormats, &wwo.outcaps.dwSupport);
1119     if (rc)
1120     {
1121         WARN("Error calculating device caps for pcm [%s]\n", wwo.pcmname);
1122         ALSA_FreeDevice(&wwo);
1123         return(rc);
1124     }
1125
1126     rc = ALSA_AddDeviceToArray(&wwo, &WOutDev, &ALSA_WodNumDevs, &ALSA_WodNumMallocedDevs, isdefault);
1127     if (rc)
1128         ALSA_FreeDevice(&wwo);
1129     return (rc);
1130 }
1131
1132 /*----------------------------------------------------------------------------
1133 **  ALSA_AddCaptureDevice
1134 **
1135 **      Add a given Alsa device to Wine's internal list of Capture
1136 **  devices.
1137 */
1138 static int ALSA_AddCaptureDevice(snd_ctl_t *ctl, snd_pcm_t *pcm, const char *pcmname, int isdefault)
1139 {
1140     WINE_WAVEDEV    wwi;
1141     int rc;
1142
1143     memset(&wwi, '\0', sizeof(wwi));
1144
1145     rc = ALSA_AddCommonDevice(ctl, pcm, pcmname, &wwi);
1146     if (rc)
1147         return(rc);
1148
1149     MultiByteToWideChar(CP_ACP, 0, wwi.ds_desc.szDesc, -1,
1150                         wwi.incaps.szPname, sizeof(wwi.incaps.szPname) / sizeof(WCHAR));
1151     wwi.incaps.szPname[sizeof(wwi.incaps.szPname)/sizeof(WCHAR) - 1] = '\0';
1152
1153     wwi.incaps.wMid = MM_CREATIVE;
1154     wwi.incaps.wPid = MM_CREATIVE_SBP16_WAVEOUT;
1155     wwi.incaps.vDriverVersion = 0x0100;
1156
1157     rc = ALSA_ComputeCaps(ctl, pcm, &wwi.incaps.wChannels, &wwi.ds_caps.dwFlags,
1158             &wwi.incaps.dwFormats, &wwi.dwSupport);
1159     if (rc)
1160     {
1161         WARN("Error calculating device caps for pcm [%s]\n", wwi.pcmname);
1162         ALSA_FreeDevice(&wwi);
1163         return(rc);
1164     }
1165
1166     rc = ALSA_AddDeviceToArray(&wwi, &WInDev, &ALSA_WidNumDevs, &ALSA_WidNumMallocedDevs, isdefault);
1167     if (rc)
1168         ALSA_FreeDevice(&wwi);
1169     return(rc);
1170 }
1171
1172 /*----------------------------------------------------------------------------
1173 **  ALSA_CheckEnvironment
1174 **
1175 **      Given an Alsa style configuration node, scan its subitems
1176 **  for environment variable names, and use them to find an override,
1177 **  if appropriate.
1178 **      This is essentially a long and convolunted way of doing:
1179 **          getenv("ALSA_CARD")
1180 **          getenv("ALSA_CTL_CARD")
1181 **          getenv("ALSA_PCM_CARD")
1182 **          getenv("ALSA_PCM_DEVICE")
1183 **
1184 **  The output value is set with the atoi() of the first environment
1185 **  variable found to be set, if any; otherwise, it is left alone
1186 */
1187 static void ALSA_CheckEnvironment(snd_config_t *node, int *outvalue)
1188 {
1189     snd_config_iterator_t iter;
1190
1191     for (iter = snd_config_iterator_first(node);
1192          iter != snd_config_iterator_end(node);
1193          iter = snd_config_iterator_next(iter))
1194     {
1195         snd_config_t *leaf = snd_config_iterator_entry(iter);
1196         if (snd_config_get_type(leaf) == SND_CONFIG_TYPE_STRING)
1197         {
1198             const char *value;
1199             if (snd_config_get_string(leaf, &value) >= 0)
1200             {
1201                 char *p = getenv(value);
1202                 if (p)
1203                 {
1204                     *outvalue = atoi(p);
1205                     return;
1206                 }
1207             }
1208         }
1209     }
1210 }
1211
1212 /*----------------------------------------------------------------------------
1213 **  ALSA_DefaultDevices
1214 **
1215 **      Jump through Alsa style hoops to (hopefully) properly determine
1216 **  Alsa defaults for CTL Card #, as well as for PCM Card + Device #.
1217 **  We'll also find out if the user has set any of the environment
1218 **  variables that specify we're to use a specific card or device.
1219 **
1220 **  Parameters:
1221 **      directhw        Whether to use a direct hardware device or not;
1222 **                      essentially switches the pcm device name from
1223 **                      one of 'default:X' or 'plughw:X' to "hw:X"
1224 **      defctlcard      If !NULL, will hold the ctl card number given
1225 **                      by the ALSA config as the default
1226 **      defpcmcard      If !NULL, default pcm card #
1227 **      defpcmdev       If !NULL, default pcm device #
1228 **      fixedctlcard    If !NULL, and the user set the appropriate
1229 **                          environment variable, we'll set to the
1230 **                          card the user specified.
1231 **      fixedpcmcard    If !NULL, and the user set the appropriate
1232 **                          environment variable, we'll set to the
1233 **                          card the user specified.
1234 **      fixedpcmdev     If !NULL, and the user set the appropriate
1235 **                          environment variable, we'll set to the
1236 **                          device the user specified.
1237 **
1238 **  Returns:  0 on success, < 0 on failiure
1239 */
1240 static int ALSA_DefaultDevices(int directhw,
1241             long *defctlcard,
1242             long *defpcmcard, long *defpcmdev,
1243             int *fixedctlcard,
1244             int *fixedpcmcard, int *fixedpcmdev)
1245 {
1246     snd_config_t   *configp;
1247     char pcmsearch[256];
1248
1249     ALSA_RETURN_ONFAIL(snd_config_update());
1250
1251     if (defctlcard)
1252         if (snd_config_search(snd_config, "defaults.ctl.card", &configp) >= 0)
1253             snd_config_get_integer(configp, defctlcard);
1254
1255     if (defpcmcard)
1256         if (snd_config_search(snd_config, "defaults.pcm.card", &configp) >= 0)
1257             snd_config_get_integer(configp, defpcmcard);
1258
1259     if (defpcmdev)
1260         if (snd_config_search(snd_config, "defaults.pcm.device", &configp) >= 0)
1261             snd_config_get_integer(configp, defpcmdev);
1262
1263
1264     if (fixedctlcard)
1265     {
1266         if (snd_config_search(snd_config, "ctl.hw.@args.CARD.default.vars", &configp) >= 0)
1267             ALSA_CheckEnvironment(configp, fixedctlcard);
1268     }
1269
1270     if (fixedpcmcard)
1271     {
1272         sprintf(pcmsearch, "pcm.%s.@args.CARD.default.vars", directhw ? "hw" : "plughw");
1273         if (snd_config_search(snd_config, pcmsearch, &configp) >= 0)
1274             ALSA_CheckEnvironment(configp, fixedpcmcard);
1275     }
1276
1277     if (fixedpcmdev)
1278     {
1279         sprintf(pcmsearch, "pcm.%s.@args.DEV.default.vars", directhw ? "hw" : "plughw");
1280         if (snd_config_search(snd_config, pcmsearch, &configp) >= 0)
1281             ALSA_CheckEnvironment(configp, fixedpcmdev);
1282     }
1283
1284     return 0;
1285 }
1286
1287
1288 /*----------------------------------------------------------------------------
1289 **  ALSA_ScanDevices
1290 **
1291 **      Iterate through all discoverable ALSA cards, searching
1292 **  for usable PCM devices.
1293 **
1294 **  Parameters:
1295 **      directhw        Whether to use a direct hardware device or not;
1296 **                      essentially switches the pcm device name from
1297 **                      one of 'default:X' or 'plughw:X' to "hw:X"
1298 **      defctlcard      Alsa's notion of the default ctl card.
1299 **      defpcmcard         . pcm card
1300 **      defpcmdev          . pcm device
1301 **      fixedctlcard    If not -1, then gives the value of ALSA_CTL_CARD
1302 **                          or equivalent environment variable
1303 **      fixedpcmcard    If not -1, then gives the value of ALSA_PCM_CARD
1304 **                          or equivalent environment variable
1305 **      fixedpcmdev     If not -1, then gives the value of ALSA_PCM_DEVICE
1306 **                          or equivalent environment variable
1307 **
1308 **  Returns:  0 on success, < 0 on failiure
1309 */
1310 static int ALSA_ScanDevices(int directhw,
1311         long defctlcard, long defpcmcard, long defpcmdev,
1312         int fixedctlcard, int fixedpcmcard, int fixedpcmdev)
1313 {
1314     int card = fixedpcmcard;
1315     int scan_devices = (fixedpcmdev == -1);
1316
1317     /*------------------------------------------------------------------------
1318     ** Loop through all available cards
1319     **----------------------------------------------------------------------*/
1320     if (card == -1)
1321         snd_card_next(&card);
1322
1323     for (; card != -1; snd_card_next(&card))
1324     {
1325         char ctlname[256];
1326         snd_ctl_t *ctl;
1327         int rc;
1328         int device;
1329
1330         /*--------------------------------------------------------------------
1331         ** Try to open a ctl handle; Wine doesn't absolutely require one,
1332         **  but it does allow for volume control and for device scanning
1333         **------------------------------------------------------------------*/
1334         sprintf(ctlname, "default:%d", fixedctlcard == -1 ? card : fixedctlcard);
1335         rc = snd_ctl_open(&ctl, ctlname, SND_CTL_NONBLOCK);
1336         if (rc < 0)
1337         {
1338             sprintf(ctlname, "hw:%d", fixedctlcard == -1 ? card : fixedctlcard);
1339             rc = snd_ctl_open(&ctl, ctlname, SND_CTL_NONBLOCK);
1340         }
1341         if (rc < 0)
1342         {
1343             ctl = NULL;
1344             WARN("Unable to open an alsa ctl for [%s] (pcm card %d): %s; not scanning devices\n",
1345                     ctlname, card, snd_strerror(rc));
1346             if (fixedpcmdev == -1)
1347                 fixedpcmdev = 0;
1348         }
1349
1350         /*--------------------------------------------------------------------
1351         ** Loop through all available devices on this card
1352         **------------------------------------------------------------------*/
1353         device = fixedpcmdev;
1354         if (device == -1)
1355             snd_ctl_pcm_next_device(ctl, &device);
1356
1357         for (; device != -1; snd_ctl_pcm_next_device(ctl, &device))
1358         {
1359             char defaultpcmname[256];
1360             char plugpcmname[256];
1361             char hwpcmname[256];
1362             char *pcmname = NULL;
1363             snd_pcm_t *pcm;
1364
1365             sprintf(defaultpcmname, "default:%d", card);
1366             sprintf(plugpcmname,    "plughw:%d,%d", card, device);
1367             sprintf(hwpcmname,      "hw:%d,%d", card, device);
1368
1369             /*----------------------------------------------------------------
1370             ** See if it's a valid playback device
1371             **--------------------------------------------------------------*/
1372             if (ALSA_TestDeviceForWine(card, device, SND_PCM_STREAM_PLAYBACK) == 0)
1373             {
1374                 /* If we can, try the default:X device name first */
1375                 if (! scan_devices && ! directhw)
1376                 {
1377                     pcmname = defaultpcmname;
1378                     rc = snd_pcm_open(&pcm, pcmname, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
1379                 }
1380                 else
1381                     rc = -1;
1382
1383                 if (rc < 0)
1384                 {
1385                     pcmname = directhw ? hwpcmname : plugpcmname;
1386                     rc = snd_pcm_open(&pcm, pcmname, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
1387                 }
1388
1389                 if (rc >= 0)
1390                 {
1391                     if (defctlcard == card && defpcmcard == card && defpcmdev == device)
1392                         ALSA_AddPlaybackDevice(ctl, pcm, pcmname, TRUE);
1393                     else
1394                         ALSA_AddPlaybackDevice(ctl, pcm, pcmname, FALSE);
1395                     snd_pcm_close(pcm);
1396                 }
1397                 else
1398                 {
1399                     TRACE("Device [%s/%s] failed to open for playback: %s\n",
1400                         directhw || scan_devices ? "(N/A)" : defaultpcmname,
1401                         directhw ? hwpcmname : plugpcmname,
1402                         snd_strerror(rc));
1403                 }
1404             }
1405
1406             /*----------------------------------------------------------------
1407             ** See if it's a valid capture device
1408             **--------------------------------------------------------------*/
1409             if (ALSA_TestDeviceForWine(card, device, SND_PCM_STREAM_CAPTURE) == 0)
1410             {
1411                 /* If we can, try the default:X device name first */
1412                 if (! scan_devices && ! directhw)
1413                 {
1414                     pcmname = defaultpcmname;
1415                     rc = snd_pcm_open(&pcm, pcmname, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
1416                 }
1417                 else
1418                     rc = -1;
1419
1420                 if (rc < 0)
1421                 {
1422                     pcmname = directhw ? hwpcmname : plugpcmname;
1423                     rc = snd_pcm_open(&pcm, pcmname, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
1424                 }
1425
1426                 if (rc >= 0)
1427                 {
1428                     if (defctlcard == card && defpcmcard == card && defpcmdev == device)
1429                         ALSA_AddCaptureDevice(ctl, pcm, pcmname, TRUE);
1430                     else
1431                         ALSA_AddCaptureDevice(ctl, pcm, pcmname, FALSE);
1432
1433                     snd_pcm_close(pcm);
1434                 }
1435                 else
1436                 {
1437                     TRACE("Device [%s/%s] failed to open for capture: %s\n",
1438                         directhw || scan_devices ? "(N/A)" : defaultpcmname,
1439                         directhw ? hwpcmname : plugpcmname,
1440                         snd_strerror(rc));
1441                 }
1442             }
1443
1444             if (! scan_devices)
1445                 break;
1446         }
1447
1448         if (ctl)
1449             snd_ctl_close(ctl);
1450
1451         /*--------------------------------------------------------------------
1452         ** If the user has set env variables such that we're pegged to
1453         **  a specific card, then break after we've examined it
1454         **------------------------------------------------------------------*/
1455         if (fixedpcmcard != -1)
1456             break;
1457     }
1458
1459     return 0;
1460
1461 }
1462
1463 /*----------------------------------------------------------------------------
1464 ** ALSA_PerformDefaultScan
1465 **  Perform the basic default scanning for devices within ALSA.
1466 **  The hope is that this routine implements a 'correct'
1467 **  scanning algorithm from the Alsalib point of view.
1468 **
1469 **      Note that Wine, overall, has other mechanisms to
1470 **  override and specify exact CTL and PCM device names,
1471 **  but this routine is imagined as the default that
1472 **  99% of users will use.
1473 **
1474 **      The basic algorithm is simple:
1475 **  Use snd_card_next to iterate cards; within cards, use
1476 **  snd_ctl_pcm_next_device to iterate through devices.
1477 **
1478 **      We add a little complexity by taking into consideration
1479 **  environment variables such as ALSA_CARD (et all), and by
1480 **  detecting when a given device matches the default specified
1481 **  by Alsa.
1482 **
1483 **  Parameters:
1484 **      directhw        If !0, indicates we should use the hw:X
1485 **                      PCM interface, rather than first try
1486 **                      the 'default' device followed by the plughw
1487 **                      device.  (default and plughw do fancy mixing
1488 **                      and audio scaling, if they are available).
1489 **      devscan         If TRUE, we should scan all devices, not
1490 **                      juse use device 0 on each card
1491 **
1492 **  Returns:
1493 **      0   on succes
1494 **
1495 **  Effects:
1496 **      Invokes the ALSA_AddXXXDevice functions on valid
1497 **  looking devices
1498 */
1499 static int ALSA_PerformDefaultScan(int directhw, BOOL devscan)
1500 {
1501     long defctlcard = -1, defpcmcard = -1, defpcmdev = -1;
1502     int fixedctlcard = -1, fixedpcmcard = -1, fixedpcmdev = -1;
1503     int rc;
1504
1505     /* FIXME:  We should dlsym the new snd_names_list/snd_names_list_free 1.0.9 apis,
1506     **          and use them instead of this scan mechanism if they are present         */
1507
1508     rc = ALSA_DefaultDevices(directhw, &defctlcard, &defpcmcard, &defpcmdev,
1509             &fixedctlcard, &fixedpcmcard, &fixedpcmdev);
1510     if (rc)
1511         return(rc);
1512
1513     if (fixedpcmdev == -1 && ! devscan)
1514         fixedpcmdev = 0;
1515
1516     return(ALSA_ScanDevices(directhw, defctlcard, defpcmcard, defpcmdev, fixedctlcard, fixedpcmcard, fixedpcmdev));
1517 }
1518
1519
1520 /*----------------------------------------------------------------------------
1521 ** ALSA_AddUserSpecifiedDevice
1522 **  Add a device given from the registry
1523 */
1524 static int ALSA_AddUserSpecifiedDevice(const char *ctlname, const char *pcmname)
1525 {
1526     int rc;
1527     int okay = 0;
1528     snd_ctl_t *ctl = NULL;
1529     snd_pcm_t *pcm = NULL;
1530
1531     if (ctlname)
1532     {
1533         rc = snd_ctl_open(&ctl, ctlname, SND_CTL_NONBLOCK);
1534         if (rc < 0)
1535             ctl = NULL;
1536     }
1537
1538     rc = snd_pcm_open(&pcm, pcmname, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
1539     if (rc >= 0)
1540     {
1541         ALSA_AddPlaybackDevice(ctl, pcm, pcmname, FALSE);
1542         okay++;
1543         snd_pcm_close(pcm);
1544     }
1545
1546     rc = snd_pcm_open(&pcm, pcmname, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
1547     if (rc >= 0)
1548     {
1549         ALSA_AddCaptureDevice(ctl, pcm, pcmname, FALSE);
1550         okay++;
1551         snd_pcm_close(pcm);
1552     }
1553
1554     if (ctl)
1555         snd_ctl_close(ctl);
1556
1557     return (okay == 0);
1558 }
1559
1560
1561 /*----------------------------------------------------------------------------
1562 ** ALSA_WaveInit
1563 **  Initialize the Wine Alsa sub system.
1564 ** The main task is to probe for and store a list of all appropriate playback
1565 ** and capture devices.
1566 **  Key control points are from the registry key:
1567 **  [Software\Wine\Alsa Driver]
1568 **  AutoScanCards           Whether or not to scan all known sound cards
1569 **                          and add them to Wine's list (default yes)
1570 **  AutoScanDevices         Whether or not to scan all known PCM devices
1571 **                          on each card (default no)
1572 **  UseDirectHW             Whether or not to use the hw:X device,
1573 **                          instead of the fancy default:X or plughw:X device.
1574 **                          The hw:X device goes straight to the hardware
1575 **                          without any fancy mixing or audio scaling in between.
1576 **  DeviceCount             If present, specifies the number of hard coded
1577 **                          Alsa devices to add to Wine's list; default 0
1578 **  DevicePCMn              Specifies the Alsa PCM devices to open for
1579 **                          Device n (where n goes from 1 to DeviceCount)
1580 **  DeviceCTLn              Specifies the Alsa control devices to open for
1581 **                          Device n (where n goes from 1 to DeviceCount)
1582 **
1583 **                          Using AutoScanCards no, and then Devicexxx info
1584 **                          is a way to exactly specify the devices used by Wine.
1585 **
1586 */
1587 LONG ALSA_WaveInit(void)
1588 {
1589     DWORD rc;
1590     BOOL  AutoScanCards = TRUE;
1591     BOOL  AutoScanDevices = FALSE;
1592     BOOL  UseDirectHW = FALSE;
1593     DWORD DeviceCount = 0;
1594     HKEY  key = 0;
1595     int   i;
1596
1597     if (!wine_dlopen("libasound.so.2", RTLD_LAZY|RTLD_GLOBAL, NULL, 0))
1598     {
1599         ERR("Error: ALSA lib needs to be loaded with flags RTLD_LAZY and RTLD_GLOBAL.\n");
1600         return -1;
1601     }
1602
1603     /* @@ Wine registry key: HKCU\Software\Wine\Alsa Driver */
1604     rc = RegOpenKeyExA(HKEY_CURRENT_USER, "Software\\Wine\\Alsa Driver", 0, KEY_QUERY_VALUE, &key);
1605     if (rc == ERROR_SUCCESS)
1606     {
1607         ALSA_RegGetBoolean(key, "AutoScanCards", &AutoScanCards);
1608         ALSA_RegGetBoolean(key, "AutoScanDevices", &AutoScanDevices);
1609         ALSA_RegGetBoolean(key, "UseDirectHW", &UseDirectHW);
1610         ALSA_RegGetInt(key, "DeviceCount", &DeviceCount);
1611     }
1612
1613     if (AutoScanCards)
1614         rc = ALSA_PerformDefaultScan(UseDirectHW, AutoScanDevices);
1615
1616     for (i = 0; i < DeviceCount; i++)
1617     {
1618         char *ctl_name = NULL;
1619         char *pcm_name = NULL;
1620         char value[30];
1621
1622         sprintf(value, "DevicePCM%d", i + 1);
1623         if (ALSA_RegGetString(key, value, &pcm_name) == ERROR_SUCCESS)
1624         {
1625             sprintf(value, "DeviceCTL%d", i + 1);
1626             ALSA_RegGetString(key, value, &ctl_name);
1627             ALSA_AddUserSpecifiedDevice(ctl_name, pcm_name);
1628         }
1629
1630         if (ctl_name)
1631             HeapFree(GetProcessHeap(), 0, ctl_name);
1632
1633         if (pcm_name)
1634             HeapFree(GetProcessHeap(), 0, pcm_name);
1635     }
1636
1637     if (key)
1638         RegCloseKey(key);
1639
1640     return (rc);
1641 }
1642
1643 /******************************************************************
1644  *              ALSA_InitRingMessage
1645  *
1646  * Initialize the ring of messages for passing between driver's caller and playback/record
1647  * thread
1648  */
1649 static int ALSA_InitRingMessage(ALSA_MSG_RING* omr)
1650 {
1651     omr->msg_toget = 0;
1652     omr->msg_tosave = 0;
1653 #ifdef USE_PIPE_SYNC
1654     if (pipe(omr->msg_pipe) < 0) {
1655         omr->msg_pipe[0] = -1;
1656         omr->msg_pipe[1] = -1;
1657         ERR("could not create pipe, error=%s\n", strerror(errno));
1658     }
1659 #else
1660     omr->msg_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1661 #endif
1662     omr->ring_buffer_size = ALSA_RING_BUFFER_INCREMENT;
1663     omr->messages = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,omr->ring_buffer_size * sizeof(ALSA_MSG));
1664
1665     InitializeCriticalSection(&omr->msg_crst);
1666     return 0;
1667 }
1668
1669 /******************************************************************
1670  *              ALSA_DestroyRingMessage
1671  *
1672  */
1673 static int ALSA_DestroyRingMessage(ALSA_MSG_RING* omr)
1674 {
1675 #ifdef USE_PIPE_SYNC
1676     close(omr->msg_pipe[0]);
1677     close(omr->msg_pipe[1]);
1678 #else
1679     CloseHandle(omr->msg_event);
1680 #endif
1681     HeapFree(GetProcessHeap(),0,omr->messages);
1682     omr->ring_buffer_size = 0;
1683     DeleteCriticalSection(&omr->msg_crst);
1684     return 0;
1685 }
1686
1687 /******************************************************************
1688  *              ALSA_AddRingMessage
1689  *
1690  * Inserts a new message into the ring (should be called from DriverProc derivated routines)
1691  */
1692 static int ALSA_AddRingMessage(ALSA_MSG_RING* omr, enum win_wm_message msg, DWORD param, BOOL wait)
1693 {
1694     HANDLE      hEvent = INVALID_HANDLE_VALUE;
1695
1696     EnterCriticalSection(&omr->msg_crst);
1697     if ((omr->msg_toget == ((omr->msg_tosave + 1) % omr->ring_buffer_size)))
1698     {
1699         int old_ring_buffer_size = omr->ring_buffer_size;
1700         omr->ring_buffer_size += ALSA_RING_BUFFER_INCREMENT;
1701         TRACE("omr->ring_buffer_size=%d\n",omr->ring_buffer_size);
1702         omr->messages = HeapReAlloc(GetProcessHeap(),0,omr->messages, omr->ring_buffer_size * sizeof(ALSA_MSG));
1703         /* Now we need to rearrange the ring buffer so that the new
1704            buffers just allocated are in between omr->msg_tosave and
1705            omr->msg_toget.
1706         */
1707         if (omr->msg_tosave < omr->msg_toget)
1708         {
1709             memmove(&(omr->messages[omr->msg_toget + ALSA_RING_BUFFER_INCREMENT]),
1710                     &(omr->messages[omr->msg_toget]),
1711                     sizeof(ALSA_MSG)*(old_ring_buffer_size - omr->msg_toget)
1712                     );
1713             omr->msg_toget += ALSA_RING_BUFFER_INCREMENT;
1714         }
1715     }
1716     if (wait)
1717     {
1718         hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
1719         if (hEvent == INVALID_HANDLE_VALUE)
1720         {
1721             ERR("can't create event !?\n");
1722             LeaveCriticalSection(&omr->msg_crst);
1723             return 0;
1724         }
1725         if (omr->msg_toget != omr->msg_tosave && omr->messages[omr->msg_toget].msg != WINE_WM_HEADER)
1726             FIXME("two fast messages in the queue!!!! toget = %d(%s), tosave=%d(%s)\n",
1727                   omr->msg_toget,getCmdString(omr->messages[omr->msg_toget].msg),
1728                   omr->msg_tosave,getCmdString(omr->messages[omr->msg_tosave].msg));
1729
1730         /* fast messages have to be added at the start of the queue */
1731         omr->msg_toget = (omr->msg_toget + omr->ring_buffer_size - 1) % omr->ring_buffer_size;
1732
1733         omr->messages[omr->msg_toget].msg = msg;
1734         omr->messages[omr->msg_toget].param = param;
1735         omr->messages[omr->msg_toget].hEvent = hEvent;
1736     }
1737     else
1738     {
1739         omr->messages[omr->msg_tosave].msg = msg;
1740         omr->messages[omr->msg_tosave].param = param;
1741         omr->messages[omr->msg_tosave].hEvent = INVALID_HANDLE_VALUE;
1742         omr->msg_tosave = (omr->msg_tosave + 1) % omr->ring_buffer_size;
1743     }
1744     LeaveCriticalSection(&omr->msg_crst);
1745     /* signal a new message */
1746     SIGNAL_OMR(omr);
1747     if (wait)
1748     {
1749         /* wait for playback/record thread to have processed the message */
1750         WaitForSingleObject(hEvent, INFINITE);
1751         CloseHandle(hEvent);
1752     }
1753     return 1;
1754 }
1755
1756 /******************************************************************
1757  *              ALSA_RetrieveRingMessage
1758  *
1759  * Get a message from the ring. Should be called by the playback/record thread.
1760  */
1761 static int ALSA_RetrieveRingMessage(ALSA_MSG_RING* omr,
1762                                    enum win_wm_message *msg, DWORD *param, HANDLE *hEvent)
1763 {
1764     EnterCriticalSection(&omr->msg_crst);
1765
1766     if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
1767     {
1768         LeaveCriticalSection(&omr->msg_crst);
1769         return 0;
1770     }
1771
1772     *msg = omr->messages[omr->msg_toget].msg;
1773     omr->messages[omr->msg_toget].msg = 0;
1774     *param = omr->messages[omr->msg_toget].param;
1775     *hEvent = omr->messages[omr->msg_toget].hEvent;
1776     omr->msg_toget = (omr->msg_toget + 1) % omr->ring_buffer_size;
1777     CLEAR_OMR(omr);
1778     LeaveCriticalSection(&omr->msg_crst);
1779     return 1;
1780 }
1781
1782 /******************************************************************
1783  *              ALSA_PeekRingMessage
1784  *
1785  * Peek at a message from the ring but do not remove it.
1786  * Should be called by the playback/record thread.
1787  */
1788 static int ALSA_PeekRingMessage(ALSA_MSG_RING* omr,
1789                                enum win_wm_message *msg,
1790                                DWORD *param, HANDLE *hEvent)
1791 {
1792     EnterCriticalSection(&omr->msg_crst);
1793
1794     if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
1795     {
1796         LeaveCriticalSection(&omr->msg_crst);
1797         return 0;
1798     }
1799
1800     *msg = omr->messages[omr->msg_toget].msg;
1801     *param = omr->messages[omr->msg_toget].param;
1802     *hEvent = omr->messages[omr->msg_toget].hEvent;
1803     LeaveCriticalSection(&omr->msg_crst);
1804     return 1;
1805 }
1806
1807 /*======================================================================*
1808  *                  Low level WAVE OUT implementation                   *
1809  *======================================================================*/
1810
1811 /**************************************************************************
1812  *                      wodNotifyClient                 [internal]
1813  */
1814 static DWORD wodNotifyClient(WINE_WAVEDEV* wwo, WORD wMsg, DWORD dwParam1, DWORD dwParam2)
1815 {
1816     TRACE("wMsg = 0x%04x dwParm1 = %04lX dwParam2 = %04lX\n", wMsg, dwParam1, dwParam2);
1817
1818     switch (wMsg) {
1819     case WOM_OPEN:
1820     case WOM_CLOSE:
1821     case WOM_DONE:
1822         if (wwo->wFlags != DCB_NULL &&
1823             !DriverCallback(wwo->waveDesc.dwCallback, wwo->wFlags, (HDRVR)wwo->waveDesc.hWave,
1824                             wMsg, wwo->waveDesc.dwInstance, dwParam1, dwParam2)) {
1825             WARN("can't notify client !\n");
1826             return MMSYSERR_ERROR;
1827         }
1828         break;
1829     default:
1830         FIXME("Unknown callback message %u\n", wMsg);
1831         return MMSYSERR_INVALPARAM;
1832     }
1833     return MMSYSERR_NOERROR;
1834 }
1835
1836 /**************************************************************************
1837  *                              wodUpdatePlayedTotal    [internal]
1838  *
1839  */
1840 static BOOL wodUpdatePlayedTotal(WINE_WAVEDEV* wwo, snd_pcm_status_t* ps)
1841 {
1842     snd_pcm_sframes_t delay = 0;
1843     snd_pcm_state_t state;
1844
1845     state = snd_pcm_state(wwo->pcm);
1846     snd_pcm_delay(wwo->pcm, &delay);
1847
1848     /* A delay < 0 indicates an underrun; for our purposes that's 0.  */
1849     if ( (state != SND_PCM_STATE_RUNNING && state != SND_PCM_STATE_PREPARED) || (delay < 0))
1850     {
1851         WARN("Unexpected state (%d) or delay (%ld) while updating Total Played, resetting\n", state, delay);
1852         delay=0;
1853     }
1854     wwo->dwPlayedTotal = wwo->dwWrittenTotal - snd_pcm_frames_to_bytes(wwo->pcm, delay);
1855     return TRUE;
1856 }
1857
1858 /**************************************************************************
1859  *                              wodPlayer_BeginWaveHdr          [internal]
1860  *
1861  * Makes the specified lpWaveHdr the currently playing wave header.
1862  * If the specified wave header is a begin loop and we're not already in
1863  * a loop, setup the loop.
1864  */
1865 static void wodPlayer_BeginWaveHdr(WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
1866 {
1867     wwo->lpPlayPtr = lpWaveHdr;
1868
1869     if (!lpWaveHdr) return;
1870
1871     if (lpWaveHdr->dwFlags & WHDR_BEGINLOOP) {
1872         if (wwo->lpLoopPtr) {
1873             WARN("Already in a loop. Discarding loop on this header (%p)\n", lpWaveHdr);
1874         } else {
1875             TRACE("Starting loop (%ldx) with %p\n", lpWaveHdr->dwLoops, lpWaveHdr);
1876             wwo->lpLoopPtr = lpWaveHdr;
1877             /* Windows does not touch WAVEHDR.dwLoops,
1878              * so we need to make an internal copy */
1879             wwo->dwLoops = lpWaveHdr->dwLoops;
1880         }
1881     }
1882     wwo->dwPartialOffset = 0;
1883 }
1884
1885 /**************************************************************************
1886  *                              wodPlayer_PlayPtrNext           [internal]
1887  *
1888  * Advance the play pointer to the next waveheader, looping if required.
1889  */
1890 static LPWAVEHDR wodPlayer_PlayPtrNext(WINE_WAVEDEV* wwo)
1891 {
1892     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
1893
1894     wwo->dwPartialOffset = 0;
1895     if ((lpWaveHdr->dwFlags & WHDR_ENDLOOP) && wwo->lpLoopPtr) {
1896         /* We're at the end of a loop, loop if required */
1897         if (--wwo->dwLoops > 0) {
1898             wwo->lpPlayPtr = wwo->lpLoopPtr;
1899         } else {
1900             /* Handle overlapping loops correctly */
1901             if (wwo->lpLoopPtr != lpWaveHdr && (lpWaveHdr->dwFlags & WHDR_BEGINLOOP)) {
1902                 FIXME("Correctly handled case ? (ending loop buffer also starts a new loop)\n");
1903                 /* shall we consider the END flag for the closing loop or for
1904                  * the opening one or for both ???
1905                  * code assumes for closing loop only
1906                  */
1907             } else {
1908                 lpWaveHdr = lpWaveHdr->lpNext;
1909             }
1910             wwo->lpLoopPtr = NULL;
1911             wodPlayer_BeginWaveHdr(wwo, lpWaveHdr);
1912         }
1913     } else {
1914         /* We're not in a loop.  Advance to the next wave header */
1915         wodPlayer_BeginWaveHdr(wwo, lpWaveHdr = lpWaveHdr->lpNext);
1916     }
1917
1918     return lpWaveHdr;
1919 }
1920
1921 /**************************************************************************
1922  *                           wodPlayer_DSPWait                  [internal]
1923  * Returns the number of milliseconds to wait for the DSP buffer to play a
1924  * period
1925  */
1926 static DWORD wodPlayer_DSPWait(const WINE_WAVEDEV *wwo)
1927 {
1928     /* time for one period to be played */
1929     unsigned int val=0;
1930     int dir=0;
1931     int err=0;
1932     err = snd_pcm_hw_params_get_period_time(wwo->hw_params, &val, &dir);
1933     return val / 1000;
1934 }
1935
1936 /**************************************************************************
1937  *                           wodPlayer_NotifyWait               [internal]
1938  * Returns the number of milliseconds to wait before attempting to notify
1939  * completion of the specified wavehdr.
1940  * This is based on the number of bytes remaining to be written in the
1941  * wave.
1942  */
1943 static DWORD wodPlayer_NotifyWait(const WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
1944 {
1945     DWORD dwMillis;
1946
1947     if (lpWaveHdr->reserved < wwo->dwPlayedTotal) {
1948         dwMillis = 1;
1949     } else {
1950         dwMillis = (lpWaveHdr->reserved - wwo->dwPlayedTotal) * 1000 / wwo->format.Format.nAvgBytesPerSec;
1951         if (!dwMillis) dwMillis = 1;
1952     }
1953
1954     return dwMillis;
1955 }
1956
1957
1958 /**************************************************************************
1959  *                           wodPlayer_WriteMaxFrags            [internal]
1960  * Writes the maximum number of frames possible to the DSP and returns
1961  * the number of frames written.
1962  */
1963 static int wodPlayer_WriteMaxFrags(WINE_WAVEDEV* wwo, DWORD* frames)
1964 {
1965     /* Only attempt to write to free frames */
1966     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
1967     DWORD dwLength = snd_pcm_bytes_to_frames(wwo->pcm, lpWaveHdr->dwBufferLength - wwo->dwPartialOffset);
1968     int toWrite = min(dwLength, *frames);
1969     int written;
1970
1971     TRACE("Writing wavehdr %p.%lu[%lu]\n", lpWaveHdr, wwo->dwPartialOffset, lpWaveHdr->dwBufferLength);
1972
1973     if (toWrite > 0) {
1974         written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
1975         if ( written < 0) {
1976             /* XRUN occurred. let's try to recover */
1977             ALSA_XRUNRecovery(wwo, written);
1978             written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
1979         }
1980         if (written <= 0) {
1981             /* still in error */
1982             ERR("Error in writing wavehdr. Reason: %s\n", snd_strerror(written));
1983             return written;
1984         }
1985     } else
1986         written = 0;
1987
1988     wwo->dwPartialOffset += snd_pcm_frames_to_bytes(wwo->pcm, written);
1989     if ( wwo->dwPartialOffset >= lpWaveHdr->dwBufferLength) {
1990         /* this will be used to check if the given wave header has been fully played or not... */
1991         wwo->dwPartialOffset = lpWaveHdr->dwBufferLength;
1992         /* If we wrote all current wavehdr, skip to the next one */
1993         wodPlayer_PlayPtrNext(wwo);
1994     }
1995     *frames -= written;
1996     wwo->dwWrittenTotal += snd_pcm_frames_to_bytes(wwo->pcm, written);
1997     TRACE("dwWrittenTotal=%lu\n", wwo->dwWrittenTotal);
1998
1999     return written;
2000 }
2001
2002
2003 /**************************************************************************
2004  *                              wodPlayer_NotifyCompletions     [internal]
2005  *
2006  * Notifies and remove from queue all wavehdrs which have been played to
2007  * the speaker (ie. they have cleared the ALSA buffer).  If force is true,
2008  * we notify all wavehdrs and remove them all from the queue even if they
2009  * are unplayed or part of a loop.
2010  */
2011 static DWORD wodPlayer_NotifyCompletions(WINE_WAVEDEV* wwo, BOOL force)
2012 {
2013     LPWAVEHDR           lpWaveHdr;
2014
2015     /* Start from lpQueuePtr and keep notifying until:
2016      * - we hit an unwritten wavehdr
2017      * - we hit the beginning of a running loop
2018      * - we hit a wavehdr which hasn't finished playing
2019      */
2020 #if 0
2021     while ((lpWaveHdr = wwo->lpQueuePtr) &&
2022            (force ||
2023             (lpWaveHdr != wwo->lpPlayPtr &&
2024              lpWaveHdr != wwo->lpLoopPtr &&
2025              lpWaveHdr->reserved <= wwo->dwPlayedTotal))) {
2026
2027         wwo->lpQueuePtr = lpWaveHdr->lpNext;
2028
2029         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
2030         lpWaveHdr->dwFlags |= WHDR_DONE;
2031
2032         wodNotifyClient(wwo, WOM_DONE, (DWORD)lpWaveHdr, 0);
2033     }
2034 #else
2035     for (;;)
2036     {
2037         lpWaveHdr = wwo->lpQueuePtr;
2038         if (!lpWaveHdr) {TRACE("Empty queue\n"); break;}
2039         if (!force)
2040         {
2041             if (lpWaveHdr == wwo->lpPlayPtr) {TRACE("play %p\n", lpWaveHdr); break;}
2042             if (lpWaveHdr == wwo->lpLoopPtr) {TRACE("loop %p\n", lpWaveHdr); break;}
2043             if (lpWaveHdr->reserved > wwo->dwPlayedTotal){TRACE("still playing %p (%lu/%lu)\n", lpWaveHdr, lpWaveHdr->reserved, wwo->dwPlayedTotal);break;}
2044         }
2045         wwo->lpQueuePtr = lpWaveHdr->lpNext;
2046
2047         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
2048         lpWaveHdr->dwFlags |= WHDR_DONE;
2049
2050         wodNotifyClient(wwo, WOM_DONE, (DWORD)lpWaveHdr, 0);
2051     }
2052 #endif
2053     return  (lpWaveHdr && lpWaveHdr != wwo->lpPlayPtr && lpWaveHdr != wwo->lpLoopPtr) ?
2054         wodPlayer_NotifyWait(wwo, lpWaveHdr) : INFINITE;
2055 }
2056
2057
2058 /**************************************************************************
2059  *                              wodPlayer_Reset                 [internal]
2060  *
2061  * wodPlayer helper. Resets current output stream.
2062  */
2063 static  void    wodPlayer_Reset(WINE_WAVEDEV* wwo)
2064 {
2065     enum win_wm_message msg;
2066     DWORD                       param;
2067     HANDLE                      ev;
2068     int                         err;
2069     TRACE("(%p)\n", wwo);
2070
2071     /* flush all possible output */
2072     snd_pcm_drain(wwo->pcm);
2073
2074     wodUpdatePlayedTotal(wwo, NULL);
2075     /* updates current notify list */
2076     wodPlayer_NotifyCompletions(wwo, FALSE);
2077
2078     if ( (err = snd_pcm_drop(wwo->pcm)) < 0) {
2079         FIXME("flush: %s\n", snd_strerror(err));
2080         wwo->hThread = 0;
2081         wwo->state = WINE_WS_STOPPED;
2082         ExitThread(-1);
2083     }
2084     if ( (err = snd_pcm_prepare(wwo->pcm)) < 0 )
2085         ERR("pcm prepare failed: %s\n", snd_strerror(err));
2086
2087     /* remove any buffer */
2088     wodPlayer_NotifyCompletions(wwo, TRUE);
2089
2090     wwo->lpPlayPtr = wwo->lpQueuePtr = wwo->lpLoopPtr = NULL;
2091     wwo->state = WINE_WS_STOPPED;
2092     wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
2093     /* Clear partial wavehdr */
2094     wwo->dwPartialOffset = 0;
2095
2096     /* remove any existing message in the ring */
2097     EnterCriticalSection(&wwo->msgRing.msg_crst);
2098     /* return all pending headers in queue */
2099     while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev))
2100     {
2101         if (msg != WINE_WM_HEADER)
2102         {
2103             FIXME("shouldn't have headers left\n");
2104             SetEvent(ev);
2105             continue;
2106         }
2107         ((LPWAVEHDR)param)->dwFlags &= ~WHDR_INQUEUE;
2108         ((LPWAVEHDR)param)->dwFlags |= WHDR_DONE;
2109
2110         wodNotifyClient(wwo, WOM_DONE, param, 0);
2111     }
2112     RESET_OMR(&wwo->msgRing);
2113     LeaveCriticalSection(&wwo->msgRing.msg_crst);
2114 }
2115
2116 /**************************************************************************
2117  *                    wodPlayer_ProcessMessages                 [internal]
2118  */
2119 static void wodPlayer_ProcessMessages(WINE_WAVEDEV* wwo)
2120 {
2121     LPWAVEHDR           lpWaveHdr;
2122     enum win_wm_message msg;
2123     DWORD               param;
2124     HANDLE              ev;
2125     int                 err;
2126
2127     while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev)) {
2128      TRACE("Received %s %lx\n", getCmdString(msg), param);
2129
2130         switch (msg) {
2131         case WINE_WM_PAUSING:
2132             if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_RUNNING )
2133              {
2134                 err = snd_pcm_pause(wwo->pcm, 1);
2135                 if ( err < 0 )
2136                     ERR("pcm_pause failed: %s\n", snd_strerror(err));
2137              }
2138             wwo->state = WINE_WS_PAUSED;
2139             SetEvent(ev);
2140             break;
2141         case WINE_WM_RESTARTING:
2142             if (wwo->state == WINE_WS_PAUSED)
2143             {
2144                 if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_PAUSED )
2145                  {
2146                     err = snd_pcm_pause(wwo->pcm, 0);
2147                     if ( err < 0 )
2148                         ERR("pcm_pause failed: %s\n", snd_strerror(err));
2149                  }
2150                 wwo->state = WINE_WS_PLAYING;
2151             }
2152             SetEvent(ev);
2153             break;
2154         case WINE_WM_HEADER:
2155             lpWaveHdr = (LPWAVEHDR)param;
2156
2157             /* insert buffer at the end of queue */
2158             {
2159                 LPWAVEHDR*      wh;
2160                 for (wh = &(wwo->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
2161                 *wh = lpWaveHdr;
2162             }
2163             if (!wwo->lpPlayPtr)
2164                 wodPlayer_BeginWaveHdr(wwo,lpWaveHdr);
2165             if (wwo->state == WINE_WS_STOPPED)
2166                 wwo->state = WINE_WS_PLAYING;
2167             break;
2168         case WINE_WM_RESETTING:
2169             wodPlayer_Reset(wwo);
2170             SetEvent(ev);
2171             break;
2172         case WINE_WM_UPDATE:
2173             wodUpdatePlayedTotal(wwo, NULL);
2174             SetEvent(ev);
2175             break;
2176         case WINE_WM_BREAKLOOP:
2177             if (wwo->state == WINE_WS_PLAYING && wwo->lpLoopPtr != NULL) {
2178                 /* ensure exit at end of current loop */
2179                 wwo->dwLoops = 1;
2180             }
2181             SetEvent(ev);
2182             break;
2183         case WINE_WM_CLOSING:
2184             /* sanity check: this should not happen since the device must have been reset before */
2185             if (wwo->lpQueuePtr || wwo->lpPlayPtr) ERR("out of sync\n");
2186             wwo->hThread = 0;
2187             wwo->state = WINE_WS_CLOSED;
2188             SetEvent(ev);
2189             ExitThread(0);
2190             /* shouldn't go here */
2191         default:
2192             FIXME("unknown message %d\n", msg);
2193             break;
2194         }
2195     }
2196 }
2197
2198 /**************************************************************************
2199  *                           wodPlayer_FeedDSP                  [internal]
2200  * Feed as much sound data as we can into the DSP and return the number of
2201  * milliseconds before it will be necessary to feed the DSP again.
2202  */
2203 static DWORD wodPlayer_FeedDSP(WINE_WAVEDEV* wwo)
2204 {
2205     DWORD               availInQ;
2206
2207     wodUpdatePlayedTotal(wwo, NULL);
2208     availInQ = snd_pcm_avail_update(wwo->pcm);
2209
2210 #if 0
2211     /* input queue empty and output buffer with less than one fragment to play */
2212     if (!wwo->lpPlayPtr && wwo->dwBufferSize < availInQ + wwo->dwFragmentSize) {
2213         TRACE("Run out of wavehdr:s...\n");
2214         return INFINITE;
2215     }
2216 #endif
2217     /* no more room... no need to try to feed */
2218     if (availInQ > 0) {
2219         /* Feed from partial wavehdr */
2220         if (wwo->lpPlayPtr && wwo->dwPartialOffset != 0) {
2221             wodPlayer_WriteMaxFrags(wwo, &availInQ);
2222         }
2223
2224         /* Feed wavehdrs until we run out of wavehdrs or DSP space */
2225         if (wwo->dwPartialOffset == 0 && wwo->lpPlayPtr) {
2226             do {
2227                 TRACE("Setting time to elapse for %p to %lu\n",
2228                       wwo->lpPlayPtr, wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength);
2229                 /* note the value that dwPlayedTotal will return when this wave finishes playing */
2230                 wwo->lpPlayPtr->reserved = wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength;
2231             } while (wodPlayer_WriteMaxFrags(wwo, &availInQ) && wwo->lpPlayPtr && availInQ > 0);
2232         }
2233     }
2234
2235     return wodPlayer_DSPWait(wwo);
2236 }
2237
2238 /**************************************************************************
2239  *                              wodPlayer                       [internal]
2240  */
2241 static  DWORD   CALLBACK        wodPlayer(LPVOID pmt)
2242 {
2243     WORD          uDevID = (DWORD)pmt;
2244     WINE_WAVEDEV* wwo = (WINE_WAVEDEV*)&WOutDev[uDevID];
2245     DWORD         dwNextFeedTime = INFINITE;   /* Time before DSP needs feeding */
2246     DWORD         dwNextNotifyTime = INFINITE; /* Time before next wave completion */
2247     DWORD         dwSleepTime;
2248
2249     wwo->state = WINE_WS_STOPPED;
2250     SetEvent(wwo->hStartUpEvent);
2251
2252     for (;;) {
2253         /** Wait for the shortest time before an action is required.  If there
2254          *  are no pending actions, wait forever for a command.
2255          */
2256         dwSleepTime = min(dwNextFeedTime, dwNextNotifyTime);
2257         TRACE("waiting %lums (%lu,%lu)\n", dwSleepTime, dwNextFeedTime, dwNextNotifyTime);
2258         WAIT_OMR(&wwo->msgRing, dwSleepTime);
2259         wodPlayer_ProcessMessages(wwo);
2260         if (wwo->state == WINE_WS_PLAYING) {
2261             dwNextFeedTime = wodPlayer_FeedDSP(wwo);
2262             dwNextNotifyTime = wodPlayer_NotifyCompletions(wwo, FALSE);
2263             if (dwNextFeedTime == INFINITE) {
2264                 /* FeedDSP ran out of data, but before giving up, */
2265                 /* check that a notification didn't give us more */
2266                 wodPlayer_ProcessMessages(wwo);
2267                 if (wwo->lpPlayPtr) {
2268                     TRACE("recovering\n");
2269                     dwNextFeedTime = wodPlayer_FeedDSP(wwo);
2270                 }
2271             }
2272         } else {
2273             dwNextFeedTime = dwNextNotifyTime = INFINITE;
2274         }
2275     }
2276 }
2277
2278 /**************************************************************************
2279  *                      wodGetDevCaps                           [internal]
2280  */
2281 static DWORD wodGetDevCaps(WORD wDevID, LPWAVEOUTCAPSW lpCaps, DWORD dwSize)
2282 {
2283     TRACE("(%u, %p, %lu);\n", wDevID, lpCaps, dwSize);
2284
2285     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
2286
2287     if (wDevID >= ALSA_WodNumDevs) {
2288         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2289         return MMSYSERR_BADDEVICEID;
2290     }
2291
2292     memcpy(lpCaps, &WOutDev[wDevID].outcaps, min(dwSize, sizeof(*lpCaps)));
2293     return MMSYSERR_NOERROR;
2294 }
2295
2296 /**************************************************************************
2297  *                              wodOpen                         [internal]
2298  */
2299 static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
2300 {
2301     WINE_WAVEDEV*               wwo;
2302     snd_pcm_t *                 pcm = NULL;
2303     snd_hctl_t *                hctl = NULL;
2304     snd_pcm_hw_params_t *       hw_params = NULL;
2305     snd_pcm_sw_params_t *       sw_params;
2306     snd_pcm_access_t            access;
2307     snd_pcm_format_t            format = -1;
2308     unsigned int                rate;
2309     unsigned int                buffer_time = 500000;
2310     unsigned int                period_time = 10000;
2311     snd_pcm_uframes_t           buffer_size;
2312     snd_pcm_uframes_t           period_size;
2313     int                         flags;
2314     int                         err=0;
2315     int                         dir=0;
2316     DWORD                       retcode = 0;
2317
2318     snd_pcm_sw_params_alloca(&sw_params);
2319
2320     TRACE("(%u, %p, %08lX);\n", wDevID, lpDesc, dwFlags);
2321     if (lpDesc == NULL) {
2322         WARN("Invalid Parameter !\n");
2323         return MMSYSERR_INVALPARAM;
2324     }
2325     if (wDevID >= ALSA_WodNumDevs) {
2326         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2327         return MMSYSERR_BADDEVICEID;
2328     }
2329
2330     /* only PCM format is supported so far... */
2331     if (!supportedFormat(lpDesc->lpFormat)) {
2332         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
2333              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
2334              lpDesc->lpFormat->nSamplesPerSec);
2335         return WAVERR_BADFORMAT;
2336     }
2337
2338     if (dwFlags & WAVE_FORMAT_QUERY) {
2339         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
2340              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
2341              lpDesc->lpFormat->nSamplesPerSec);
2342         return MMSYSERR_NOERROR;
2343     }
2344
2345     wwo = &WOutDev[wDevID];
2346
2347     if (wwo->pcm != NULL) {
2348         WARN("%d already allocated\n", wDevID);
2349         return MMSYSERR_ALLOCATED;
2350     }
2351
2352     if ((dwFlags & WAVE_DIRECTSOUND) && !(wwo->outcaps.dwSupport & WAVECAPS_DIRECTSOUND))
2353         /* not supported, ignore it */
2354         dwFlags &= ~WAVE_DIRECTSOUND;
2355
2356     flags = SND_PCM_NONBLOCK;
2357
2358     /* FIXME - why is this ifdefed? */
2359 #if 0
2360     if ( dwFlags & WAVE_DIRECTSOUND )
2361         flags |= SND_PCM_ASYNC;
2362 #endif
2363
2364     if ( (err = snd_pcm_open(&pcm, wwo->pcmname, SND_PCM_STREAM_PLAYBACK, flags)) < 0)
2365     {
2366         ERR("Error open: %s\n", snd_strerror(err));
2367         return MMSYSERR_NOTENABLED;
2368     }
2369
2370     if (wwo->ctlname)
2371     {
2372         err = snd_hctl_open(&hctl, wwo->ctlname, 0);
2373         if (err >= 0)
2374         {
2375             snd_hctl_load(hctl);
2376         }
2377         else
2378         {
2379             WARN("Could not open hctl for [%s]: %s\n", wwo->ctlname, snd_strerror(err));
2380             hctl = NULL;
2381         }
2382     }
2383
2384     wwo->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
2385
2386     memcpy(&wwo->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
2387     copy_format(lpDesc->lpFormat, &wwo->format);
2388
2389     TRACE("Requested this format: %ldx%dx%d %s\n",
2390           wwo->format.Format.nSamplesPerSec,
2391           wwo->format.Format.wBitsPerSample,
2392           wwo->format.Format.nChannels,
2393           getFormat(wwo->format.Format.wFormatTag));
2394
2395     if (wwo->format.Format.wBitsPerSample == 0) {
2396         WARN("Resetting zeroed wBitsPerSample\n");
2397         wwo->format.Format.wBitsPerSample = 8 *
2398             (wwo->format.Format.nAvgBytesPerSec /
2399              wwo->format.Format.nSamplesPerSec) /
2400             wwo->format.Format.nChannels;
2401     }
2402
2403 #define EXIT_ON_ERROR(f,e,txt) do \
2404 { \
2405     int err; \
2406     if ( (err = (f) ) < 0) \
2407     { \
2408         WARN(txt ": %s\n", snd_strerror(err)); \
2409         retcode=e; \
2410         goto errexit; \
2411     } \
2412 } while(0)
2413
2414     snd_pcm_hw_params_malloc(&hw_params);
2415     if (! hw_params)
2416     {
2417         retcode = MMSYSERR_NOMEM;
2418         goto errexit;
2419     }
2420     snd_pcm_hw_params_any(pcm, hw_params);
2421
2422     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
2423     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
2424         WARN("mmap not available. switching to standard write.\n");
2425         access = SND_PCM_ACCESS_RW_INTERLEAVED;
2426         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
2427         wwo->write = snd_pcm_writei;
2428     }
2429     else
2430         wwo->write = snd_pcm_mmap_writei;
2431
2432     if ((err = snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels)) < 0) {
2433         WARN("unable to set required channels: %d\n", wwo->format.Format.nChannels);
2434         if (dwFlags & WAVE_DIRECTSOUND) {
2435             if (wwo->format.Format.nChannels > 2)
2436                 wwo->format.Format.nChannels = 2;
2437             else if (wwo->format.Format.nChannels == 2)
2438                 wwo->format.Format.nChannels = 1;
2439             else if (wwo->format.Format.nChannels == 1)
2440                 wwo->format.Format.nChannels = 2;
2441             /* recalculate block align and bytes per second */
2442             wwo->format.Format.nBlockAlign = (wwo->format.Format.wBitsPerSample * wwo->format.Format.nChannels) / 8;
2443             wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
2444             WARN("changed number of channels from %d to %d\n", lpDesc->lpFormat->nChannels, wwo->format.Format.nChannels);
2445         }
2446         EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels ), WAVERR_BADFORMAT, "unable to set required channels" );
2447     }
2448
2449     if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
2450         ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
2451         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
2452         format = (wwo->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
2453                  (wwo->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
2454                  (wwo->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
2455                  (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
2456     } else if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
2457         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
2458         format = (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
2459     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
2460         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
2461         retcode = WAVERR_BADFORMAT;
2462         goto errexit;
2463     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
2464         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
2465         retcode = WAVERR_BADFORMAT;
2466         goto errexit;
2467     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
2468         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
2469         retcode = WAVERR_BADFORMAT;
2470         goto errexit;
2471     } else {
2472         ERR("invalid format: %0x04x\n", wwo->format.Format.wFormatTag);
2473         retcode = WAVERR_BADFORMAT;
2474         goto errexit;
2475     }
2476
2477     if ((err = snd_pcm_hw_params_set_format(pcm, hw_params, format)) < 0) {
2478         WARN("unable to set required format: %s\n", snd_pcm_format_name(format));
2479         if (dwFlags & WAVE_DIRECTSOUND) {
2480             if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
2481                ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
2482                IsEqualGUID(&wwo->format.SubFormat, & KSDATAFORMAT_SUBTYPE_PCM))) {
2483                 if (wwo->format.Format.wBitsPerSample != 16) {
2484                     wwo->format.Format.wBitsPerSample = 16;
2485                     format = SND_PCM_FORMAT_S16_LE;
2486                 } else {
2487                     wwo->format.Format.wBitsPerSample = 8;
2488                     format = SND_PCM_FORMAT_U8;
2489                 }
2490                 /* recalculate block align and bytes per second */
2491                 wwo->format.Format.nBlockAlign = (wwo->format.Format.wBitsPerSample * wwo->format.Format.nChannels) / 8;
2492                 wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
2493                 WARN("changed bits per sample from %d to %d\n", lpDesc->lpFormat->wBitsPerSample, wwo->format.Format.wBitsPerSample);
2494             }
2495         }
2496         EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format" );
2497     }
2498
2499     rate = wwo->format.Format.nSamplesPerSec;
2500     dir=0;
2501     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
2502     if (err < 0) {
2503         WARN("Rate %ld Hz not available for playback: %s\n", wwo->format.Format.nSamplesPerSec, snd_strerror(rate));
2504         retcode = WAVERR_BADFORMAT;
2505         goto errexit;
2506     }
2507     if (!NearMatch(rate, wwo->format.Format.nSamplesPerSec)) {
2508         if (dwFlags & WAVE_DIRECTSOUND) {
2509             WARN("changed sample rate from %ld Hz to %d Hz\n", wwo->format.Format.nSamplesPerSec, rate);
2510             wwo->format.Format.nSamplesPerSec = rate;
2511             /* recalculate bytes per second */
2512             wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
2513         } else {
2514             WARN("Rate doesn't match (requested %ld Hz, got %d Hz)\n", wwo->format.Format.nSamplesPerSec, rate);
2515             retcode = WAVERR_BADFORMAT;
2516             goto errexit;
2517         }
2518     }
2519
2520     /* give the new format back to direct sound */
2521     if (dwFlags & WAVE_DIRECTSOUND) {
2522         lpDesc->lpFormat->wFormatTag = wwo->format.Format.wFormatTag;
2523         lpDesc->lpFormat->nChannels = wwo->format.Format.nChannels;
2524         lpDesc->lpFormat->nSamplesPerSec = wwo->format.Format.nSamplesPerSec;
2525         lpDesc->lpFormat->wBitsPerSample = wwo->format.Format.wBitsPerSample;
2526         lpDesc->lpFormat->nBlockAlign = wwo->format.Format.nBlockAlign;
2527         lpDesc->lpFormat->nAvgBytesPerSec = wwo->format.Format.nAvgBytesPerSec;
2528     }
2529
2530     TRACE("Got this format: %ldx%dx%d %s\n",
2531           wwo->format.Format.nSamplesPerSec,
2532           wwo->format.Format.wBitsPerSample,
2533           wwo->format.Format.nChannels,
2534           getFormat(wwo->format.Format.wFormatTag));
2535
2536     dir=0;
2537     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
2538     dir=0;
2539     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
2540
2541     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
2542
2543     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
2544     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
2545
2546     snd_pcm_sw_params_current(pcm, sw_params);
2547     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, dwFlags & WAVE_DIRECTSOUND ? INT_MAX : 1 ), MMSYSERR_ERROR, "unable to set start threshold");
2548     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
2549     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
2550     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
2551     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
2552     EXIT_ON_ERROR( snd_pcm_sw_params_set_xrun_mode(pcm, sw_params, SND_PCM_XRUN_NONE), MMSYSERR_ERROR, "unable to set xrun mode");
2553     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
2554 #undef EXIT_ON_ERROR
2555
2556     snd_pcm_prepare(pcm);
2557
2558     if (TRACE_ON(wave))
2559         ALSA_TraceParameters(hw_params, sw_params, FALSE);
2560
2561     /* now, we can save all required data for later use... */
2562
2563     wwo->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
2564     wwo->lpQueuePtr = wwo->lpPlayPtr = wwo->lpLoopPtr = NULL;
2565     wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
2566     wwo->dwPartialOffset = 0;
2567
2568     ALSA_InitRingMessage(&wwo->msgRing);
2569
2570     if (!(dwFlags & WAVE_DIRECTSOUND)) {
2571         wwo->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
2572         wwo->hThread = CreateThread(NULL, 0, wodPlayer, (LPVOID)(DWORD)wDevID, 0, &(wwo->dwThreadID));
2573         if (wwo->hThread)
2574             SetThreadPriority(wwo->hThread, THREAD_PRIORITY_TIME_CRITICAL);
2575         else
2576         {
2577             ERR("Thread creation for the wodPlayer failed!\n");
2578             CloseHandle(wwo->hStartUpEvent);
2579             retcode = MMSYSERR_NOMEM;
2580             goto errexit;
2581         }
2582         WaitForSingleObject(wwo->hStartUpEvent, INFINITE);
2583         CloseHandle(wwo->hStartUpEvent);
2584     } else {
2585         wwo->hThread = INVALID_HANDLE_VALUE;
2586         wwo->dwThreadID = 0;
2587     }
2588     wwo->hStartUpEvent = INVALID_HANDLE_VALUE;
2589
2590     TRACE("handle=%p\n", pcm);
2591     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%lu, nSamplesPerSec=%lu, nChannels=%u nBlockAlign=%u!\n",
2592           wwo->format.Format.wBitsPerSample, wwo->format.Format.nAvgBytesPerSec,
2593           wwo->format.Format.nSamplesPerSec, wwo->format.Format.nChannels,
2594           wwo->format.Format.nBlockAlign);
2595
2596     wwo->pcm = pcm;
2597     wwo->hctl = hctl;
2598     if ( wwo->hw_params )
2599         snd_pcm_hw_params_free(wwo->hw_params);
2600     wwo->hw_params = hw_params;
2601
2602
2603     return wodNotifyClient(wwo, WOM_OPEN, 0L, 0L);
2604
2605 errexit:
2606     if (pcm)
2607         snd_pcm_close(pcm);
2608
2609     if (hctl)
2610     {
2611         snd_hctl_free(hctl);
2612         snd_hctl_close(hctl);
2613     }
2614
2615     if ( hw_params )
2616         snd_pcm_hw_params_free(hw_params);
2617
2618     if (wwo->msgRing.ring_buffer_size > 0)
2619         ALSA_DestroyRingMessage(&wwo->msgRing);
2620
2621     return retcode;
2622 }
2623
2624
2625 /**************************************************************************
2626  *                              wodClose                        [internal]
2627  */
2628 static DWORD wodClose(WORD wDevID)
2629 {
2630     DWORD               ret = MMSYSERR_NOERROR;
2631     WINE_WAVEDEV*       wwo;
2632
2633     TRACE("(%u);\n", wDevID);
2634
2635     if (wDevID >= ALSA_WodNumDevs) {
2636         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2637         return MMSYSERR_BADDEVICEID;
2638     }
2639
2640     if (WOutDev[wDevID].pcm == NULL) {
2641         WARN("Requested to close already closed device %d!\n", wDevID);
2642         return MMSYSERR_BADDEVICEID;
2643     }
2644
2645     wwo = &WOutDev[wDevID];
2646     if (wwo->lpQueuePtr) {
2647         WARN("buffers still playing !\n");
2648         ret = WAVERR_STILLPLAYING;
2649     } else {
2650         if (wwo->hThread != INVALID_HANDLE_VALUE) {
2651             ALSA_AddRingMessage(&wwo->msgRing, WINE_WM_CLOSING, 0, TRUE);
2652         }
2653         ALSA_DestroyRingMessage(&wwo->msgRing);
2654
2655         if (wwo->hw_params)
2656             snd_pcm_hw_params_free(wwo->hw_params);
2657         wwo->hw_params = NULL;
2658
2659         if (wwo->pcm)
2660             snd_pcm_close(wwo->pcm);
2661         wwo->pcm = NULL;
2662
2663         if (wwo->hctl)
2664         {
2665             snd_hctl_free(wwo->hctl);
2666             snd_hctl_close(wwo->hctl);
2667         }
2668         wwo->hctl = NULL;
2669
2670         ret = wodNotifyClient(wwo, WOM_CLOSE, 0L, 0L);
2671     }
2672
2673     return ret;
2674 }
2675
2676
2677 /**************************************************************************
2678  *                              wodWrite                        [internal]
2679  *
2680  */
2681 static DWORD wodWrite(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
2682 {
2683     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
2684
2685     if (wDevID >= ALSA_WodNumDevs) {
2686         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2687         return MMSYSERR_BADDEVICEID;
2688     }
2689
2690     if (WOutDev[wDevID].pcm == NULL) {
2691         WARN("Requested to write to closed device %d!\n", wDevID);
2692         return MMSYSERR_BADDEVICEID;
2693     }
2694
2695     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
2696         return WAVERR_UNPREPARED;
2697
2698     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
2699         return WAVERR_STILLPLAYING;
2700
2701     lpWaveHdr->dwFlags &= ~WHDR_DONE;
2702     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
2703     lpWaveHdr->lpNext = 0;
2704
2705     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
2706
2707     return MMSYSERR_NOERROR;
2708 }
2709
2710 /**************************************************************************
2711  *                      wodPause                                [internal]
2712  */
2713 static DWORD wodPause(WORD wDevID)
2714 {
2715     TRACE("(%u);!\n", wDevID);
2716
2717     if (wDevID >= ALSA_WodNumDevs) {
2718         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2719         return MMSYSERR_BADDEVICEID;
2720     }
2721
2722     if (WOutDev[wDevID].pcm == NULL) {
2723         WARN("Requested to pause closed device %d!\n", wDevID);
2724         return MMSYSERR_BADDEVICEID;
2725     }
2726
2727     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_PAUSING, 0, TRUE);
2728
2729     return MMSYSERR_NOERROR;
2730 }
2731
2732 /**************************************************************************
2733  *                      wodRestart                              [internal]
2734  */
2735 static DWORD wodRestart(WORD wDevID)
2736 {
2737     TRACE("(%u);\n", wDevID);
2738
2739     if (wDevID >= ALSA_WodNumDevs) {
2740         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2741         return MMSYSERR_BADDEVICEID;
2742     }
2743
2744     if (WOutDev[wDevID].pcm == NULL) {
2745         WARN("Requested to restart closed device %d!\n", wDevID);
2746         return MMSYSERR_BADDEVICEID;
2747     }
2748
2749     if (WOutDev[wDevID].state == WINE_WS_PAUSED) {
2750         ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESTARTING, 0, TRUE);
2751     }
2752
2753     /* FIXME: is NotifyClient with WOM_DONE right ? (Comet Busters 1.3.3 needs this notification) */
2754     /* FIXME: Myst crashes with this ... hmm -MM
2755        return wodNotifyClient(wwo, WOM_DONE, 0L, 0L);
2756     */
2757
2758     return MMSYSERR_NOERROR;
2759 }
2760
2761 /**************************************************************************
2762  *                      wodReset                                [internal]
2763  */
2764 static DWORD wodReset(WORD wDevID)
2765 {
2766     TRACE("(%u);\n", wDevID);
2767
2768     if (wDevID >= ALSA_WodNumDevs) {
2769         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2770         return MMSYSERR_BADDEVICEID;
2771     }
2772
2773     if (WOutDev[wDevID].pcm == NULL) {
2774         WARN("Requested to reset closed device %d!\n", wDevID);
2775         return MMSYSERR_BADDEVICEID;
2776     }
2777
2778     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
2779
2780     return MMSYSERR_NOERROR;
2781 }
2782
2783 /**************************************************************************
2784  *                              wodGetPosition                  [internal]
2785  */
2786 static DWORD wodGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
2787 {
2788     WINE_WAVEDEV*       wwo;
2789
2790     TRACE("(%u, %p, %lu);\n", wDevID, lpTime, uSize);
2791
2792     if (wDevID >= ALSA_WodNumDevs) {
2793         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2794         return MMSYSERR_BADDEVICEID;
2795     }
2796
2797     if (WOutDev[wDevID].pcm == NULL) {
2798         WARN("Requested to get position of closed device %d!\n", wDevID);
2799         return MMSYSERR_BADDEVICEID;
2800     }
2801
2802     if (lpTime == NULL) return MMSYSERR_INVALPARAM;
2803
2804     wwo = &WOutDev[wDevID];
2805     ALSA_AddRingMessage(&wwo->msgRing, WINE_WM_UPDATE, 0, TRUE);
2806
2807     return bytes_to_mmtime(lpTime, wwo->dwPlayedTotal, &wwo->format);
2808 }
2809
2810 /**************************************************************************
2811  *                              wodBreakLoop                    [internal]
2812  */
2813 static DWORD wodBreakLoop(WORD wDevID)
2814 {
2815     TRACE("(%u);\n", wDevID);
2816
2817     if (wDevID >= ALSA_WodNumDevs) {
2818         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2819         return MMSYSERR_BADDEVICEID;
2820     }
2821
2822     if (WOutDev[wDevID].pcm == NULL) {
2823         WARN("Requested to breakloop of closed device %d!\n", wDevID);
2824         return MMSYSERR_BADDEVICEID;
2825     }
2826
2827     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_BREAKLOOP, 0, TRUE);
2828     return MMSYSERR_NOERROR;
2829 }
2830
2831 /**************************************************************************
2832  *                              wodGetVolume                    [internal]
2833  */
2834 static DWORD wodGetVolume(WORD wDevID, LPDWORD lpdwVol)
2835 {
2836     WORD               wleft, wright;
2837     WINE_WAVEDEV*      wwo;
2838     int                min, max;
2839     int                left, right;
2840     DWORD              rc;
2841
2842     TRACE("(%u, %p);\n", wDevID, lpdwVol);
2843     if (wDevID >= ALSA_WodNumDevs) {
2844         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2845         return MMSYSERR_BADDEVICEID;
2846     }
2847
2848     if (lpdwVol == NULL)
2849         return MMSYSERR_NOTENABLED;
2850
2851     wwo = &WOutDev[wDevID];
2852
2853     if (lpdwVol == NULL)
2854         return MMSYSERR_NOTENABLED;
2855
2856     rc = ALSA_CheckSetVolume(wwo->hctl, &left, &right, &min, &max, NULL, NULL, NULL);
2857     if (rc == MMSYSERR_NOERROR)
2858     {
2859 #define VOLUME_ALSA_TO_WIN(x) (  ( (((x)-min) * 65535) + (max-min)/2 ) /(max-min))
2860         wleft = VOLUME_ALSA_TO_WIN(left);
2861         wright = VOLUME_ALSA_TO_WIN(right);
2862 #undef VOLUME_ALSA_TO_WIN
2863         TRACE("left=%d,right=%d,converted to windows left %d, right %d\n", left, right, wleft, wright);
2864         *lpdwVol = MAKELONG( wleft, wright );
2865     }
2866     else
2867         TRACE("CheckSetVolume failed; rc %ld\n", rc);
2868
2869     return rc;
2870 }
2871
2872 /**************************************************************************
2873  *                              wodSetVolume                    [internal]
2874  */
2875 static DWORD wodSetVolume(WORD wDevID, DWORD dwParam)
2876 {
2877     WORD               wleft, wright;
2878     WINE_WAVEDEV*      wwo;
2879     int                min, max;
2880     int                left, right;
2881     DWORD              rc;
2882
2883     TRACE("(%u, %08lX);\n", wDevID, dwParam);
2884     if (wDevID >= ALSA_WodNumDevs) {
2885         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2886         return MMSYSERR_BADDEVICEID;
2887     }
2888
2889     wwo = &WOutDev[wDevID];
2890
2891     rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, &min, &max, NULL, NULL, NULL);
2892     if (rc == MMSYSERR_NOERROR)
2893     {
2894         wleft  = LOWORD(dwParam);
2895         wright = HIWORD(dwParam);
2896 #define VOLUME_WIN_TO_ALSA(x) ( (  ( ((x) * (max-min)) + 32767) / 65535) + min )
2897         left = VOLUME_WIN_TO_ALSA(wleft);
2898         right = VOLUME_WIN_TO_ALSA(wright);
2899 #undef VOLUME_WIN_TO_ALSA
2900         rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, NULL, NULL, NULL, &left, &right);
2901         if (rc == MMSYSERR_NOERROR)
2902             TRACE("set volume:  wleft=%d, wright=%d, converted to alsa left %d, right %d\n", wleft, wright, left, right);
2903         else
2904             TRACE("SetVolume failed; rc %ld\n", rc);
2905     }
2906
2907     return rc;
2908 }
2909
2910 /**************************************************************************
2911  *                              wodGetNumDevs                   [internal]
2912  */
2913 static  DWORD   wodGetNumDevs(void)
2914 {
2915     return ALSA_WodNumDevs;
2916 }
2917
2918 /**************************************************************************
2919  *                              wodDevInterfaceSize             [internal]
2920  */
2921 static DWORD wodDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
2922 {
2923     TRACE("(%u, %p)\n", wDevID, dwParam1);
2924
2925     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
2926                                     NULL, 0 ) * sizeof(WCHAR);
2927     return MMSYSERR_NOERROR;
2928 }
2929
2930 /**************************************************************************
2931  *                              wodDevInterface                 [internal]
2932  */
2933 static DWORD wodDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
2934 {
2935     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
2936                                         NULL, 0 ) * sizeof(WCHAR))
2937     {
2938         MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
2939                             dwParam1, dwParam2 / sizeof(WCHAR));
2940         return MMSYSERR_NOERROR;
2941     }
2942     return MMSYSERR_INVALPARAM;
2943 }
2944
2945 /**************************************************************************
2946  *                              wodMessage (WINEALSA.@)
2947  */
2948 DWORD WINAPI ALSA_wodMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
2949                              DWORD dwParam1, DWORD dwParam2)
2950 {
2951     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
2952           wDevID, getMessage(wMsg), dwUser, dwParam1, dwParam2);
2953
2954     switch (wMsg) {
2955     case DRVM_INIT:
2956     case DRVM_EXIT:
2957     case DRVM_ENABLE:
2958     case DRVM_DISABLE:
2959         /* FIXME: Pretend this is supported */
2960         return 0;
2961     case WODM_OPEN:             return wodOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
2962     case WODM_CLOSE:            return wodClose         (wDevID);
2963     case WODM_GETDEVCAPS:       return wodGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
2964     case WODM_GETNUMDEVS:       return wodGetNumDevs    ();
2965     case WODM_GETPITCH:         return MMSYSERR_NOTSUPPORTED;
2966     case WODM_SETPITCH:         return MMSYSERR_NOTSUPPORTED;
2967     case WODM_GETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
2968     case WODM_SETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
2969     case WODM_WRITE:            return wodWrite         (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
2970     case WODM_PAUSE:            return wodPause         (wDevID);
2971     case WODM_GETPOS:           return wodGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
2972     case WODM_BREAKLOOP:        return wodBreakLoop     (wDevID);
2973     case WODM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
2974     case WODM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
2975     case WODM_GETVOLUME:        return wodGetVolume     (wDevID, (LPDWORD)dwParam1);
2976     case WODM_SETVOLUME:        return wodSetVolume     (wDevID, dwParam1);
2977     case WODM_RESTART:          return wodRestart       (wDevID);
2978     case WODM_RESET:            return wodReset         (wDevID);
2979     case DRV_QUERYDEVICEINTERFACESIZE: return wodDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
2980     case DRV_QUERYDEVICEINTERFACE:     return wodDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
2981     case DRV_QUERYDSOUNDIFACE:  return wodDsCreate      (wDevID, (PIDSDRIVER*)dwParam1);
2982     case DRV_QUERYDSOUNDDESC:   return wodDsDesc        (wDevID, (PDSDRIVERDESC)dwParam1);
2983
2984     default:
2985         FIXME("unknown message %d!\n", wMsg);
2986     }
2987     return MMSYSERR_NOTSUPPORTED;
2988 }
2989
2990 /*======================================================================*
2991  *                  Low level DSOUND implementation                     *
2992  *======================================================================*/
2993
2994 typedef struct IDsDriverImpl IDsDriverImpl;
2995 typedef struct IDsDriverBufferImpl IDsDriverBufferImpl;
2996
2997 struct IDsDriverImpl
2998 {
2999     /* IUnknown fields */
3000     const IDsDriverVtbl *lpVtbl;
3001     LONG                ref;
3002     /* IDsDriverImpl fields */
3003     UINT                wDevID;
3004     IDsDriverBufferImpl*primary;
3005 };
3006
3007 struct IDsDriverBufferImpl
3008 {
3009     /* IUnknown fields */
3010     const IDsDriverBufferVtbl *lpVtbl;
3011     LONG                      ref;
3012     /* IDsDriverBufferImpl fields */
3013     IDsDriverImpl*            drv;
3014
3015     CRITICAL_SECTION          mmap_crst;
3016     LPVOID                    mmap_buffer;
3017     DWORD                     mmap_buflen_bytes;
3018     snd_pcm_uframes_t         mmap_buflen_frames;
3019     snd_pcm_channel_area_t *  mmap_areas;
3020     snd_async_handler_t *     mmap_async_handler;
3021     snd_pcm_uframes_t         mmap_ppos; /* play position */
3022
3023     /* Do we have a direct hardware buffer - SND_PCM_TYPE_HW? */
3024     int                       mmap_mode;
3025 };
3026
3027 static void DSDB_CheckXRUN(IDsDriverBufferImpl* pdbi)
3028 {
3029     WINE_WAVEDEV *     wwo = &(WOutDev[pdbi->drv->wDevID]);
3030     snd_pcm_state_t    state = snd_pcm_state(wwo->pcm);
3031
3032     if ( state == SND_PCM_STATE_XRUN )
3033     {
3034         int            err = snd_pcm_prepare(wwo->pcm);
3035         TRACE("xrun occurred\n");
3036         if ( err < 0 )
3037             ERR("recovery from xrun failed, prepare failed: %s\n", snd_strerror(err));
3038     }
3039     else if ( state == SND_PCM_STATE_SUSPENDED )
3040     {
3041         int            err = snd_pcm_resume(wwo->pcm);
3042         TRACE("recovery from suspension occurred\n");
3043         if (err < 0 && err != -EAGAIN){
3044             err = snd_pcm_prepare(wwo->pcm);
3045             if (err < 0)
3046                 ERR("recovery from suspend failed, prepare failed: %s\n", snd_strerror(err));
3047         }
3048     }
3049 }
3050
3051 static void DSDB_MMAPCopy(IDsDriverBufferImpl* pdbi, int mul)
3052 {
3053     WINE_WAVEDEV *     wwo = &(WOutDev[pdbi->drv->wDevID]);
3054     snd_pcm_uframes_t  period_size;
3055     snd_pcm_sframes_t  avail;
3056     int err;
3057     int dir=0;
3058
3059     const snd_pcm_channel_area_t *areas;
3060     snd_pcm_uframes_t     ofs;
3061     snd_pcm_uframes_t     frames;
3062     snd_pcm_uframes_t     wanted;
3063
3064     if ( !pdbi->mmap_buffer || !wwo->hw_params || !wwo->pcm)
3065         return;
3066
3067     err = snd_pcm_hw_params_get_period_size(wwo->hw_params, &period_size, &dir);
3068     avail = snd_pcm_avail_update(wwo->pcm);
3069
3070     DSDB_CheckXRUN(pdbi);
3071
3072     TRACE("avail=%d, mul=%d\n", (int)avail, mul);
3073
3074     frames = pdbi->mmap_buflen_frames;
3075
3076     EnterCriticalSection(&pdbi->mmap_crst);
3077
3078     /* we want to commit the given number of periods, or the whole lot */
3079     wanted = mul == 0 ? frames : period_size * 2;
3080
3081     snd_pcm_mmap_begin(wwo->pcm, &areas, &ofs, &frames);
3082     if (areas != pdbi->mmap_areas || areas->addr != pdbi->mmap_areas->addr)
3083         FIXME("Can't access sound driver's buffer directly.\n");
3084
3085     /* mark our current play position */
3086     pdbi->mmap_ppos = ofs;
3087
3088     if (frames > wanted)
3089         frames = wanted;
3090
3091     err = snd_pcm_mmap_commit(wwo->pcm, ofs, frames);
3092
3093     /* Check to make sure we committed all we want to commit. ALSA
3094      * only gives a contiguous linear region, so we need to check this
3095      * in case we've reached the end of the buffer, in which case we
3096      * can wrap around back to the beginning. */
3097     if (frames < wanted) {
3098         frames = wanted -= frames;
3099         snd_pcm_mmap_begin(wwo->pcm, &areas, &ofs, &frames);
3100         snd_pcm_mmap_commit(wwo->pcm, ofs, frames);
3101     }
3102
3103     LeaveCriticalSection(&pdbi->mmap_crst);
3104 }
3105
3106 static void DSDB_PCMCallback(snd_async_handler_t *ahandler)
3107 {
3108     int periods;
3109     /* snd_pcm_t *               handle = snd_async_handler_get_pcm(ahandler); */
3110     IDsDriverBufferImpl*      pdbi = snd_async_handler_get_callback_private(ahandler);
3111     TRACE("callback called\n");
3112
3113     /* Commit another block (the entire buffer if it's a direct hw buffer) */
3114     periods = pdbi->mmap_mode == SND_PCM_TYPE_HW ? 0 : 1;
3115     DSDB_MMAPCopy(pdbi, periods);
3116 }
3117
3118 /**
3119  * Allocate the memory-mapped buffer for direct sound, and set up the
3120  * callback.
3121  */
3122 static int DSDB_CreateMMAP(IDsDriverBufferImpl* pdbi)
3123 {
3124     WINE_WAVEDEV *            wwo = &(WOutDev[pdbi->drv->wDevID]);
3125     snd_pcm_format_t          format;
3126     snd_pcm_uframes_t         frames;
3127     snd_pcm_uframes_t         ofs;
3128     snd_pcm_uframes_t         avail;
3129     unsigned int              channels;
3130     unsigned int              bits_per_sample;
3131     unsigned int              bits_per_frame;
3132     int                       err;
3133
3134     err = snd_pcm_hw_params_get_format(wwo->hw_params, &format);
3135     err = snd_pcm_hw_params_get_buffer_size(wwo->hw_params, &frames);
3136     err = snd_pcm_hw_params_get_channels(wwo->hw_params, &channels);
3137     bits_per_sample = snd_pcm_format_physical_width(format);
3138     bits_per_frame = bits_per_sample * channels;
3139     pdbi->mmap_mode = snd_pcm_type(wwo->pcm);
3140
3141     if (pdbi->mmap_mode == SND_PCM_TYPE_HW) {
3142         TRACE("mmap'd buffer is a hardware buffer.\n");
3143     }
3144     else {
3145         TRACE("mmap'd buffer is an ALSA emulation of hardware buffer.\n");
3146     }
3147
3148     if (TRACE_ON(wave))
3149         ALSA_TraceParameters(wwo->hw_params, NULL, FALSE);
3150
3151     TRACE("format=%s  frames=%ld  channels=%d  bits_per_sample=%d  bits_per_frame=%d\n",
3152           snd_pcm_format_name(format), frames, channels, bits_per_sample, bits_per_frame);
3153
3154     pdbi->mmap_buflen_frames = frames;
3155     pdbi->mmap_buflen_bytes = snd_pcm_frames_to_bytes( wwo->pcm, frames );
3156
3157     avail = snd_pcm_avail_update(wwo->pcm);
3158     if (avail < 0)
3159     {
3160         ERR("No buffer is available: %s.", snd_strerror(avail));
3161         return DSERR_GENERIC;
3162     }
3163     err = snd_pcm_mmap_begin(wwo->pcm, (const snd_pcm_channel_area_t **)&pdbi->mmap_areas, &ofs, &avail);
3164     if ( err < 0 )
3165     {
3166         ERR("Can't map sound device for direct access: %s\n", snd_strerror(err));
3167         return DSERR_GENERIC;
3168     }
3169     avail = 0;/* We don't have any data to commit yet */
3170     err = snd_pcm_mmap_commit(wwo->pcm, ofs, avail);
3171     if (ofs > 0)
3172         err = snd_pcm_rewind(wwo->pcm, ofs);
3173     pdbi->mmap_buffer = pdbi->mmap_areas->addr;
3174
3175     snd_pcm_format_set_silence(format, pdbi->mmap_buffer, frames );
3176
3177     TRACE("created mmap buffer of %ld frames (%ld bytes) at %p\n",
3178         frames, pdbi->mmap_buflen_bytes, pdbi->mmap_buffer);
3179
3180     InitializeCriticalSection(&pdbi->mmap_crst);
3181
3182     err = snd_async_add_pcm_handler(&pdbi->mmap_async_handler, wwo->pcm, DSDB_PCMCallback, pdbi);
3183     if ( err < 0 )
3184     {
3185         ERR("add_pcm_handler failed. reason: %s\n", snd_strerror(err));
3186         return DSERR_GENERIC;
3187     }
3188
3189     return DS_OK;
3190 }
3191
3192 static void DSDB_DestroyMMAP(IDsDriverBufferImpl* pdbi)
3193 {
3194     TRACE("mmap buffer %p destroyed\n", pdbi->mmap_buffer);
3195     pdbi->mmap_areas = NULL;
3196     pdbi->mmap_buffer = NULL;
3197     DeleteCriticalSection(&pdbi->mmap_crst);
3198 }
3199
3200
3201 static HRESULT WINAPI IDsDriverBufferImpl_QueryInterface(PIDSDRIVERBUFFER iface, REFIID riid, LPVOID *ppobj)
3202 {
3203     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3204     FIXME("(): stub!\n");
3205     return DSERR_UNSUPPORTED;
3206 }
3207
3208 static ULONG WINAPI IDsDriverBufferImpl_AddRef(PIDSDRIVERBUFFER iface)
3209 {
3210     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3211     ULONG refCount = InterlockedIncrement(&This->ref);
3212
3213     TRACE("(%p)->(ref before=%lu)\n",This, refCount - 1);
3214
3215     return refCount;
3216 }
3217
3218 static ULONG WINAPI IDsDriverBufferImpl_Release(PIDSDRIVERBUFFER iface)
3219 {
3220     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3221     ULONG refCount = InterlockedDecrement(&This->ref);
3222
3223     TRACE("(%p)->(ref before=%lu)\n",This, refCount + 1);
3224
3225     if (refCount)
3226         return refCount;
3227     if (This == This->drv->primary)
3228         This->drv->primary = NULL;
3229     DSDB_DestroyMMAP(This);
3230     HeapFree(GetProcessHeap(), 0, This);
3231     return 0;
3232 }
3233
3234 static HRESULT WINAPI IDsDriverBufferImpl_Lock(PIDSDRIVERBUFFER iface,
3235                                                LPVOID*ppvAudio1,LPDWORD pdwLen1,
3236                                                LPVOID*ppvAudio2,LPDWORD pdwLen2,
3237                                                DWORD dwWritePosition,DWORD dwWriteLen,
3238                                                DWORD dwFlags)
3239 {
3240     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3241     TRACE("(%p)\n",iface);
3242     return DSERR_UNSUPPORTED;
3243 }
3244
3245 static HRESULT WINAPI IDsDriverBufferImpl_Unlock(PIDSDRIVERBUFFER iface,
3246                                                  LPVOID pvAudio1,DWORD dwLen1,
3247                                                  LPVOID pvAudio2,DWORD dwLen2)
3248 {
3249     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3250     TRACE("(%p)\n",iface);
3251     return DSERR_UNSUPPORTED;
3252 }
3253
3254 static HRESULT WINAPI IDsDriverBufferImpl_SetFormat(PIDSDRIVERBUFFER iface,
3255                                                     LPWAVEFORMATEX pwfx)
3256 {
3257     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3258     TRACE("(%p,%p)\n",iface,pwfx);
3259     return DSERR_BUFFERLOST;
3260 }
3261
3262 static HRESULT WINAPI IDsDriverBufferImpl_SetFrequency(PIDSDRIVERBUFFER iface, DWORD dwFreq)
3263 {
3264     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3265     TRACE("(%p,%ld): stub\n",iface,dwFreq);
3266     return DSERR_UNSUPPORTED;
3267 }
3268
3269 static HRESULT WINAPI IDsDriverBufferImpl_SetVolumePan(PIDSDRIVERBUFFER iface, PDSVOLUMEPAN pVolPan)
3270 {
3271     DWORD vol;
3272     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3273     TRACE("(%p,%p)\n",iface,pVolPan);
3274     vol = pVolPan->dwTotalLeftAmpFactor | (pVolPan->dwTotalRightAmpFactor << 16);
3275
3276     if (wodSetVolume(This->drv->wDevID, vol) != MMSYSERR_NOERROR) {
3277         WARN("wodSetVolume failed\n");
3278         return DSERR_INVALIDPARAM;
3279     }
3280
3281     return DS_OK;
3282 }
3283
3284 static HRESULT WINAPI IDsDriverBufferImpl_SetPosition(PIDSDRIVERBUFFER iface, DWORD dwNewPos)
3285 {
3286     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3287     TRACE("(%p,%ld): stub\n",iface,dwNewPos);
3288     return DSERR_UNSUPPORTED;
3289 }
3290
3291 static HRESULT WINAPI IDsDriverBufferImpl_GetPosition(PIDSDRIVERBUFFER iface,
3292                                                       LPDWORD lpdwPlay, LPDWORD lpdwWrite)
3293 {
3294     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3295     WINE_WAVEDEV *      wwo = &(WOutDev[This->drv->wDevID]);
3296     snd_pcm_uframes_t   hw_ptr;
3297     snd_pcm_uframes_t   period_size;
3298     snd_pcm_state_t     state;
3299     int dir;
3300     int err;
3301
3302     if (wwo->hw_params == NULL) return DSERR_GENERIC;
3303
3304     dir=0;
3305     err = snd_pcm_hw_params_get_period_size(wwo->hw_params, &period_size, &dir);
3306
3307     if (wwo->pcm == NULL) return DSERR_GENERIC;
3308     /** we need to track down buffer underruns */
3309     DSDB_CheckXRUN(This);
3310
3311     EnterCriticalSection(&This->mmap_crst);
3312     hw_ptr = This->mmap_ppos;
3313
3314     state = snd_pcm_state(wwo->pcm);
3315     if (state != SND_PCM_STATE_RUNNING)
3316       hw_ptr = 0;
3317
3318     if (lpdwPlay)
3319         *lpdwPlay = snd_pcm_frames_to_bytes(wwo->pcm, hw_ptr) % This->mmap_buflen_bytes;
3320     if (lpdwWrite)
3321         *lpdwWrite = snd_pcm_frames_to_bytes(wwo->pcm, hw_ptr + period_size * 2) % This->mmap_buflen_bytes;
3322     LeaveCriticalSection(&This->mmap_crst);
3323
3324     TRACE("hw_ptr=0x%08x, playpos=%ld, writepos=%ld\n", (unsigned int)hw_ptr, lpdwPlay?*lpdwPlay:-1, lpdwWrite?*lpdwWrite:-1);
3325     return DS_OK;
3326 }
3327
3328 static HRESULT WINAPI IDsDriverBufferImpl_Play(PIDSDRIVERBUFFER iface, DWORD dwRes1, DWORD dwRes2, DWORD dwFlags)
3329 {
3330     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3331     WINE_WAVEDEV *       wwo = &(WOutDev[This->drv->wDevID]);
3332     snd_pcm_state_t      state;
3333     int                  err;
3334
3335     TRACE("(%p,%lx,%lx,%lx)\n",iface,dwRes1,dwRes2,dwFlags);
3336
3337     if (wwo->pcm == NULL) return DSERR_GENERIC;
3338
3339     state = snd_pcm_state(wwo->pcm);
3340     if ( state == SND_PCM_STATE_SETUP )
3341     {
3342         err = snd_pcm_prepare(wwo->pcm);
3343         state = snd_pcm_state(wwo->pcm);
3344     }
3345     if ( state == SND_PCM_STATE_PREPARED )
3346     {
3347         /* If we have a direct hardware buffer, we can commit the whole lot
3348          * immediately (periods = 0), otherwise we prime the queue with only
3349          * 2 periods.
3350          *
3351          * Why 2? We want a small number so that we don't get ahead of the
3352          * DirectSound mixer. But we don't want to ever let the buffer get
3353          * completely empty - having 2 periods gives us time to commit another
3354          * period when the first expires.
3355          *
3356          * The potential for buffer underrun is high, but that's the reality
3357          * of using a translated buffer (the whole point of DirectSound is
3358          * to provide direct access to the hardware).
3359          *
3360          * A better implementation would use the buffer Lock() and Unlock()
3361          * methods to determine how far ahead we can commit, and to rewind if
3362          * necessary.
3363          */
3364         int periods = This->mmap_mode == SND_PCM_TYPE_HW ? 0 : 2;
3365
3366         DSDB_MMAPCopy(This, periods);
3367         err = snd_pcm_start(wwo->pcm);
3368     }
3369     return DS_OK;
3370 }
3371
3372 static HRESULT WINAPI IDsDriverBufferImpl_Stop(PIDSDRIVERBUFFER iface)
3373 {
3374     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3375     WINE_WAVEDEV *    wwo = &(WOutDev[This->drv->wDevID]);
3376     int               err;
3377     DWORD             play;
3378     DWORD             write;
3379
3380     TRACE("(%p)\n",iface);
3381
3382     if (wwo->pcm == NULL) return DSERR_GENERIC;
3383
3384     /* ring buffer wrap up detection */
3385     IDsDriverBufferImpl_GetPosition(iface, &play, &write);
3386     if ( play > write)
3387     {
3388         TRACE("writepos wrapper up\n");
3389         return DS_OK;
3390     }
3391
3392     if ( ( err = snd_pcm_drop(wwo->pcm)) < 0 )
3393     {
3394         ERR("error while stopping pcm: %s\n", snd_strerror(err));
3395         return DSERR_GENERIC;
3396     }
3397     return DS_OK;
3398 }
3399
3400 static const IDsDriverBufferVtbl dsdbvt =
3401 {
3402     IDsDriverBufferImpl_QueryInterface,
3403     IDsDriverBufferImpl_AddRef,
3404     IDsDriverBufferImpl_Release,
3405     IDsDriverBufferImpl_Lock,
3406     IDsDriverBufferImpl_Unlock,
3407     IDsDriverBufferImpl_SetFormat,
3408     IDsDriverBufferImpl_SetFrequency,
3409     IDsDriverBufferImpl_SetVolumePan,
3410     IDsDriverBufferImpl_SetPosition,
3411     IDsDriverBufferImpl_GetPosition,
3412     IDsDriverBufferImpl_Play,
3413     IDsDriverBufferImpl_Stop
3414 };
3415
3416 static HRESULT WINAPI IDsDriverImpl_QueryInterface(PIDSDRIVER iface, REFIID riid, LPVOID *ppobj)
3417 {
3418     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3419     FIXME("(%p): stub!\n",iface);
3420     return DSERR_UNSUPPORTED;
3421 }
3422
3423 static ULONG WINAPI IDsDriverImpl_AddRef(PIDSDRIVER iface)
3424 {
3425     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3426     ULONG refCount = InterlockedIncrement(&This->ref);
3427
3428     TRACE("(%p)->(ref before=%lu)\n",This, refCount - 1);
3429
3430     return refCount;
3431 }
3432
3433 static ULONG WINAPI IDsDriverImpl_Release(PIDSDRIVER iface)
3434 {
3435     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3436     ULONG refCount = InterlockedDecrement(&This->ref);
3437
3438     TRACE("(%p)->(ref before=%lu)\n",This, refCount + 1);
3439
3440     if (refCount)
3441         return refCount;
3442     HeapFree(GetProcessHeap(),0,This);
3443     return 0;
3444 }
3445
3446 static HRESULT WINAPI IDsDriverImpl_GetDriverDesc(PIDSDRIVER iface, PDSDRIVERDESC pDesc)
3447 {
3448     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3449     TRACE("(%p,%p)\n",iface,pDesc);
3450     memcpy(pDesc, &(WOutDev[This->wDevID].ds_desc), sizeof(DSDRIVERDESC));
3451     pDesc->dwFlags = DSDDESC_DOMMSYSTEMOPEN | DSDDESC_DOMMSYSTEMSETFORMAT |
3452         DSDDESC_USESYSTEMMEMORY | DSDDESC_DONTNEEDPRIMARYLOCK;
3453     pDesc->dnDevNode            = WOutDev[This->wDevID].waveDesc.dnDevNode;
3454     pDesc->wVxdId               = 0;
3455     pDesc->wReserved            = 0;
3456     pDesc->ulDeviceNum          = This->wDevID;
3457     pDesc->dwHeapType           = DSDHEAP_NOHEAP;
3458     pDesc->pvDirectDrawHeap     = NULL;
3459     pDesc->dwMemStartAddress    = 0;
3460     pDesc->dwMemEndAddress      = 0;
3461     pDesc->dwMemAllocExtra      = 0;
3462     pDesc->pvReserved1          = NULL;
3463     pDesc->pvReserved2          = NULL;
3464     return DS_OK;
3465 }
3466
3467 static HRESULT WINAPI IDsDriverImpl_Open(PIDSDRIVER iface)
3468 {
3469     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3470     TRACE("(%p)\n",iface);
3471     return DS_OK;
3472 }
3473
3474 static HRESULT WINAPI IDsDriverImpl_Close(PIDSDRIVER iface)
3475 {
3476     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3477     TRACE("(%p)\n",iface);
3478     return DS_OK;
3479 }
3480
3481 static HRESULT WINAPI IDsDriverImpl_GetCaps(PIDSDRIVER iface, PDSDRIVERCAPS pCaps)
3482 {
3483     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3484     TRACE("(%p,%p)\n",iface,pCaps);
3485     memcpy(pCaps, &(WOutDev[This->wDevID].ds_caps), sizeof(DSDRIVERCAPS));
3486     return DS_OK;
3487 }
3488
3489 static HRESULT WINAPI IDsDriverImpl_CreateSoundBuffer(PIDSDRIVER iface,
3490                                                       LPWAVEFORMATEX pwfx,
3491                                                       DWORD dwFlags, DWORD dwCardAddress,
3492                                                       LPDWORD pdwcbBufferSize,
3493                                                       LPBYTE *ppbBuffer,
3494                                                       LPVOID *ppvObj)
3495 {
3496     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3497     IDsDriverBufferImpl** ippdsdb = (IDsDriverBufferImpl**)ppvObj;
3498     int err;
3499
3500     TRACE("(%p,%p,%lx,%lx)\n",iface,pwfx,dwFlags,dwCardAddress);
3501     /* we only support primary buffers */
3502     if (!(dwFlags & DSBCAPS_PRIMARYBUFFER))
3503         return DSERR_UNSUPPORTED;
3504     if (This->primary)
3505         return DSERR_ALLOCATED;
3506     if (dwFlags & (DSBCAPS_CTRLFREQUENCY | DSBCAPS_CTRLPAN))
3507         return DSERR_CONTROLUNAVAIL;
3508
3509     *ippdsdb = HeapAlloc(GetProcessHeap(),0,sizeof(IDsDriverBufferImpl));
3510     if (*ippdsdb == NULL)
3511         return DSERR_OUTOFMEMORY;
3512     (*ippdsdb)->lpVtbl  = &dsdbvt;
3513     (*ippdsdb)->ref     = 1;
3514     (*ippdsdb)->drv     = This;
3515
3516     err = DSDB_CreateMMAP((*ippdsdb));
3517     if ( err != DS_OK )
3518      {
3519         HeapFree(GetProcessHeap(), 0, *ippdsdb);
3520         *ippdsdb = NULL;
3521         return err;
3522      }
3523     *ppbBuffer = (*ippdsdb)->mmap_buffer;
3524     *pdwcbBufferSize = (*ippdsdb)->mmap_buflen_bytes;
3525
3526     This->primary = *ippdsdb;
3527
3528     /* buffer is ready to go */
3529     TRACE("buffer created at %p\n", *ippdsdb);
3530     return DS_OK;
3531 }
3532
3533 static HRESULT WINAPI IDsDriverImpl_DuplicateSoundBuffer(PIDSDRIVER iface,
3534                                                          PIDSDRIVERBUFFER pBuffer,
3535                                                          LPVOID *ppvObj)
3536 {
3537     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3538     TRACE("(%p,%p): stub\n",iface,pBuffer);
3539     return DSERR_INVALIDCALL;
3540 }
3541
3542 static const IDsDriverVtbl dsdvt =
3543 {
3544     IDsDriverImpl_QueryInterface,
3545     IDsDriverImpl_AddRef,
3546     IDsDriverImpl_Release,
3547     IDsDriverImpl_GetDriverDesc,
3548     IDsDriverImpl_Open,
3549     IDsDriverImpl_Close,
3550     IDsDriverImpl_GetCaps,
3551     IDsDriverImpl_CreateSoundBuffer,
3552     IDsDriverImpl_DuplicateSoundBuffer
3553 };
3554
3555 static DWORD wodDsCreate(UINT wDevID, PIDSDRIVER* drv)
3556 {
3557     IDsDriverImpl** idrv = (IDsDriverImpl**)drv;
3558
3559     TRACE("driver created\n");
3560
3561     /* the HAL isn't much better than the HEL if we can't do mmap() */
3562     if (!(WOutDev[wDevID].outcaps.dwSupport & WAVECAPS_DIRECTSOUND)) {
3563         ERR("DirectSound flag not set\n");
3564         MESSAGE("This sound card's driver does not support direct access\n");
3565         MESSAGE("The (slower) DirectSound HEL mode will be used instead.\n");
3566         return MMSYSERR_NOTSUPPORTED;
3567     }
3568
3569     *idrv = HeapAlloc(GetProcessHeap(),0,sizeof(IDsDriverImpl));
3570     if (!*idrv)
3571         return MMSYSERR_NOMEM;
3572     (*idrv)->lpVtbl     = &dsdvt;
3573     (*idrv)->ref        = 1;
3574
3575     (*idrv)->wDevID     = wDevID;
3576     (*idrv)->primary    = NULL;
3577     return MMSYSERR_NOERROR;
3578 }
3579
3580 static DWORD wodDsDesc(UINT wDevID, PDSDRIVERDESC desc)
3581 {
3582     memcpy(desc, &(WOutDev[wDevID].ds_desc), sizeof(DSDRIVERDESC));
3583     return MMSYSERR_NOERROR;
3584 }
3585
3586 /*======================================================================*
3587 *                  Low level WAVE IN implementation                     *
3588 *======================================================================*/
3589
3590 /**************************************************************************
3591 *                       widNotifyClient                 [internal]
3592 */
3593 static DWORD widNotifyClient(WINE_WAVEDEV* wwi, WORD wMsg, DWORD dwParam1, DWORD dwParam2)
3594 {
3595    TRACE("wMsg = 0x%04x dwParm1 = %04lX dwParam2 = %04lX\n", wMsg, dwParam1, dwParam2);
3596
3597    switch (wMsg) {
3598    case WIM_OPEN:
3599    case WIM_CLOSE:
3600    case WIM_DATA:
3601        if (wwi->wFlags != DCB_NULL &&
3602            !DriverCallback(wwi->waveDesc.dwCallback, wwi->wFlags, (HDRVR)wwi->waveDesc.hWave,
3603                            wMsg, wwi->waveDesc.dwInstance, dwParam1, dwParam2)) {
3604            WARN("can't notify client !\n");
3605            return MMSYSERR_ERROR;
3606        }
3607        break;
3608    default:
3609        FIXME("Unknown callback message %u\n", wMsg);
3610        return MMSYSERR_INVALPARAM;
3611    }
3612    return MMSYSERR_NOERROR;
3613 }
3614
3615 /**************************************************************************
3616  *                      widGetDevCaps                           [internal]
3617  */
3618 static DWORD widGetDevCaps(WORD wDevID, LPWAVEOUTCAPSW lpCaps, DWORD dwSize)
3619 {
3620     TRACE("(%u, %p, %lu);\n", wDevID, lpCaps, dwSize);
3621
3622     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
3623
3624     if (wDevID >= ALSA_WidNumDevs) {
3625         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
3626         return MMSYSERR_BADDEVICEID;
3627     }
3628
3629     memcpy(lpCaps, &WInDev[wDevID].incaps, min(dwSize, sizeof(*lpCaps)));
3630     return MMSYSERR_NOERROR;
3631 }
3632
3633 /**************************************************************************
3634  *                              widRecorder_ReadHeaders         [internal]
3635  */
3636 static void widRecorder_ReadHeaders(WINE_WAVEDEV * wwi)
3637 {
3638     enum win_wm_message tmp_msg;
3639     DWORD               tmp_param;
3640     HANDLE              tmp_ev;
3641     WAVEHDR*            lpWaveHdr;
3642
3643     while (ALSA_RetrieveRingMessage(&wwi->msgRing, &tmp_msg, &tmp_param, &tmp_ev)) {
3644         if (tmp_msg == WINE_WM_HEADER) {
3645             LPWAVEHDR*  wh;
3646             lpWaveHdr = (LPWAVEHDR)tmp_param;
3647             lpWaveHdr->lpNext = 0;
3648
3649             if (wwi->lpQueuePtr == 0)
3650                 wwi->lpQueuePtr = lpWaveHdr;
3651             else {
3652                 for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
3653                 *wh = lpWaveHdr;
3654             }
3655         } else {
3656             ERR("should only have headers left\n");
3657         }
3658     }
3659 }
3660
3661 /**************************************************************************
3662  *                              widRecorder                     [internal]
3663  */
3664 static  DWORD   CALLBACK        widRecorder(LPVOID pmt)
3665 {
3666     WORD                uDevID = (DWORD)pmt;
3667     WINE_WAVEDEV*       wwi = (WINE_WAVEDEV*)&WInDev[uDevID];
3668     WAVEHDR*            lpWaveHdr;
3669     DWORD               dwSleepTime;
3670     DWORD               bytesRead;
3671     LPVOID              buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, wwi->dwPeriodSize);
3672     char               *pOffset = buffer;
3673     enum win_wm_message msg;
3674     DWORD               param;
3675     HANDLE              ev;
3676     DWORD               frames_per_period;
3677
3678     wwi->state = WINE_WS_STOPPED;
3679     wwi->dwTotalRecorded = 0;
3680     wwi->lpQueuePtr = NULL;
3681
3682     SetEvent(wwi->hStartUpEvent);
3683
3684     /* make sleep time to be # of ms to output a period */
3685     dwSleepTime = (1024/*wwi-dwPeriodSize => overrun!*/ * 1000) / wwi->format.Format.nAvgBytesPerSec;
3686     frames_per_period = snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize);
3687     TRACE("sleeptime=%ld ms\n", dwSleepTime);
3688
3689     for (;;) {
3690         /* wait for dwSleepTime or an event in thread's queue */
3691         /* FIXME: could improve wait time depending on queue state,
3692          * ie, number of queued fragments
3693          */
3694         if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING)
3695         {
3696             int periods;
3697             DWORD frames;
3698             DWORD bytes;
3699             DWORD read;
3700
3701             lpWaveHdr = wwi->lpQueuePtr;
3702             /* read all the fragments accumulated so far */
3703             frames = snd_pcm_avail_update(wwi->pcm);
3704             bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
3705             TRACE("frames = %ld  bytes = %ld\n", frames, bytes);
3706             periods = bytes / wwi->dwPeriodSize;
3707             while ((periods > 0) && (wwi->lpQueuePtr))
3708             {
3709                 periods--;
3710                 bytes = wwi->dwPeriodSize;
3711                 TRACE("bytes = %ld\n",bytes);
3712                 if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded >= wwi->dwPeriodSize)
3713                 {
3714                     /* directly read fragment in wavehdr */
3715                     read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames_per_period);
3716                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
3717
3718                     TRACE("bytesRead=%ld (direct)\n", bytesRead);
3719                     if (bytesRead != (DWORD) -1)
3720                     {
3721                         /* update number of bytes recorded in current buffer and by this device */
3722                         lpWaveHdr->dwBytesRecorded += bytesRead;
3723                         wwi->dwTotalRecorded       += bytesRead;
3724
3725                         /* buffer is full. notify client */
3726                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
3727                         {
3728                             /* must copy the value of next waveHdr, because we have no idea of what
3729                              * will be done with the content of lpWaveHdr in callback
3730                              */
3731                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
3732
3733                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3734                             lpWaveHdr->dwFlags |=  WHDR_DONE;
3735
3736                             wwi->lpQueuePtr = lpNext;
3737                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3738                             lpWaveHdr = lpNext;
3739                         }
3740                     } else {
3741                         TRACE("read(%s, %p, %ld) failed (%s)\n", wwi->pcmname,
3742                             lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
3743                             frames_per_period, strerror(errno));
3744                     }
3745                 }
3746                 else
3747                 {
3748                     /* read the fragment in a local buffer */
3749                     read = wwi->read(wwi->pcm, buffer, frames_per_period);
3750                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
3751                     pOffset = buffer;
3752
3753                     TRACE("bytesRead=%ld (local)\n", bytesRead);
3754
3755                     if (bytesRead == (DWORD) -1) {
3756                         TRACE("read(%s, %p, %ld) failed (%s)\n", wwi->pcmname,
3757                               buffer, frames_per_period, strerror(errno));
3758                         continue;
3759                     }
3760
3761                     /* copy data in client buffers */
3762                     while (bytesRead != (DWORD) -1 && bytesRead > 0)
3763                     {
3764                         DWORD dwToCopy = min (bytesRead, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
3765
3766                         memcpy(lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
3767                                pOffset,
3768                                dwToCopy);
3769
3770                         /* update number of bytes recorded in current buffer and by this device */
3771                         lpWaveHdr->dwBytesRecorded += dwToCopy;
3772                         wwi->dwTotalRecorded += dwToCopy;
3773                         bytesRead -= dwToCopy;
3774                         pOffset   += dwToCopy;
3775
3776                         /* client buffer is full. notify client */
3777                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
3778                         {
3779                             /* must copy the value of next waveHdr, because we have no idea of what
3780                              * will be done with the content of lpWaveHdr in callback
3781                              */
3782                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
3783                             TRACE("lpNext=%p\n", lpNext);
3784
3785                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3786                             lpWaveHdr->dwFlags |=  WHDR_DONE;
3787
3788                             wwi->lpQueuePtr = lpNext;
3789                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3790
3791                             lpWaveHdr = lpNext;
3792                             if (!lpNext && bytesRead) {
3793                                 /* before we give up, check for more header messages */
3794                                 while (ALSA_PeekRingMessage(&wwi->msgRing, &msg, &param, &ev))
3795                                 {
3796                                     if (msg == WINE_WM_HEADER) {
3797                                         LPWAVEHDR hdr;
3798                                         ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev);
3799                                         hdr = ((LPWAVEHDR)param);
3800                                         TRACE("msg = %s, hdr = %p, ev = %p\n", getCmdString(msg), hdr, ev);
3801                                         hdr->lpNext = 0;
3802                                         if (lpWaveHdr == 0) {
3803                                             /* new head of queue */
3804                                             wwi->lpQueuePtr = lpWaveHdr = hdr;
3805                                         } else {
3806                                             /* insert buffer at the end of queue */
3807                                             LPWAVEHDR*  wh;
3808                                             for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
3809                                             *wh = hdr;
3810                                         }
3811                                     } else
3812                                         break;
3813                                 }
3814
3815                                 if (lpWaveHdr == 0) {
3816                                     /* no more buffer to copy data to, but we did read more.
3817                                      * what hasn't been copied will be dropped
3818                                      */
3819                                     WARN("buffer under run! %lu bytes dropped.\n", bytesRead);
3820                                     wwi->lpQueuePtr = NULL;
3821                                     break;
3822                                 }
3823                             }
3824                         }
3825                     }
3826                 }
3827             }
3828         }
3829
3830         WAIT_OMR(&wwi->msgRing, dwSleepTime);
3831
3832         while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev))
3833         {
3834             TRACE("msg=%s param=0x%lx\n", getCmdString(msg), param);
3835             switch (msg) {
3836             case WINE_WM_PAUSING:
3837                 wwi->state = WINE_WS_PAUSED;
3838                 /*FIXME("Device should stop recording\n");*/
3839                 SetEvent(ev);
3840                 break;
3841             case WINE_WM_STARTING:
3842                 wwi->state = WINE_WS_PLAYING;
3843                 snd_pcm_start(wwi->pcm);
3844                 SetEvent(ev);
3845                 break;
3846             case WINE_WM_HEADER:
3847                 lpWaveHdr = (LPWAVEHDR)param;
3848                 lpWaveHdr->lpNext = 0;
3849
3850                 /* insert buffer at the end of queue */
3851                 {
3852                     LPWAVEHDR*  wh;
3853                     for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
3854                     *wh = lpWaveHdr;
3855                 }
3856                 break;
3857             case WINE_WM_STOPPING:
3858                 if (wwi->state != WINE_WS_STOPPED)
3859                 {
3860                     snd_pcm_drain(wwi->pcm);
3861
3862                     /* read any headers in queue */
3863                     widRecorder_ReadHeaders(wwi);
3864
3865                     /* return current buffer to app */
3866                     lpWaveHdr = wwi->lpQueuePtr;
3867                     if (lpWaveHdr)
3868                     {
3869                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
3870                         TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
3871                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3872                         lpWaveHdr->dwFlags |= WHDR_DONE;
3873                         wwi->lpQueuePtr = lpNext;
3874                         widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3875                     }
3876                 }
3877                 wwi->state = WINE_WS_STOPPED;
3878                 SetEvent(ev);
3879                 break;
3880             case WINE_WM_RESETTING:
3881                 if (wwi->state != WINE_WS_STOPPED)
3882                 {
3883                     snd_pcm_drain(wwi->pcm);
3884                 }
3885                 wwi->state = WINE_WS_STOPPED;
3886                 wwi->dwTotalRecorded = 0;
3887
3888                 /* read any headers in queue */
3889                 widRecorder_ReadHeaders(wwi);
3890
3891                 /* return all buffers to the app */
3892                 for (lpWaveHdr = wwi->lpQueuePtr; lpWaveHdr; lpWaveHdr = lpWaveHdr->lpNext) {
3893                     TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
3894                     lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3895                     lpWaveHdr->dwFlags |= WHDR_DONE;
3896                     wwi->lpQueuePtr = lpWaveHdr->lpNext;
3897                     widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3898                 }
3899
3900                 wwi->lpQueuePtr = NULL;
3901                 SetEvent(ev);
3902                 break;
3903             case WINE_WM_CLOSING:
3904                 wwi->hThread = 0;
3905                 wwi->state = WINE_WS_CLOSED;
3906                 SetEvent(ev);
3907                 HeapFree(GetProcessHeap(), 0, buffer);
3908                 ExitThread(0);
3909                 /* shouldn't go here */
3910             case WINE_WM_UPDATE:
3911                 SetEvent(ev);
3912                 break;
3913
3914             default:
3915                 FIXME("unknown message %d\n", msg);
3916                 break;
3917             }
3918         }
3919     }
3920     ExitThread(0);
3921     /* just for not generating compilation warnings... should never be executed */
3922     return 0;
3923 }
3924
3925 /**************************************************************************
3926  *                              widOpen                         [internal]
3927  */
3928 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
3929 {
3930     WINE_WAVEDEV*               wwi;
3931     snd_pcm_hw_params_t *       hw_params;
3932     snd_pcm_sw_params_t *       sw_params;
3933     snd_pcm_access_t            access;
3934     snd_pcm_format_t            format;
3935     unsigned int                rate;
3936     unsigned int                buffer_time = 500000;
3937     unsigned int                period_time = 10000;
3938     snd_pcm_uframes_t           buffer_size;
3939     snd_pcm_uframes_t           period_size;
3940     int                         flags;
3941     snd_pcm_t *                 pcm;
3942     int                         err;
3943     int                         dir;
3944
3945     snd_pcm_hw_params_alloca(&hw_params);
3946     snd_pcm_sw_params_alloca(&sw_params);
3947
3948     /* JPW TODO - review this code */
3949     TRACE("(%u, %p, %08lX);\n", wDevID, lpDesc, dwFlags);
3950     if (lpDesc == NULL) {
3951         WARN("Invalid Parameter !\n");
3952         return MMSYSERR_INVALPARAM;
3953     }
3954     if (wDevID >= ALSA_WidNumDevs) {
3955         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
3956         return MMSYSERR_BADDEVICEID;
3957     }
3958
3959     /* only PCM format is supported so far... */
3960     if (!supportedFormat(lpDesc->lpFormat)) {
3961         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
3962              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
3963              lpDesc->lpFormat->nSamplesPerSec);
3964         return WAVERR_BADFORMAT;
3965     }
3966
3967     if (dwFlags & WAVE_FORMAT_QUERY) {
3968         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
3969              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
3970              lpDesc->lpFormat->nSamplesPerSec);
3971         return MMSYSERR_NOERROR;
3972     }
3973
3974     wwi = &WInDev[wDevID];
3975
3976     if (wwi->pcm != NULL) {
3977         WARN("already allocated\n");
3978         return MMSYSERR_ALLOCATED;
3979     }
3980
3981     if ((dwFlags & WAVE_DIRECTSOUND) && !(wwi->dwSupport & WAVECAPS_DIRECTSOUND))
3982         /* not supported, ignore it */
3983         dwFlags &= ~WAVE_DIRECTSOUND;
3984
3985     wwi->pcm = 0;
3986     flags = SND_PCM_NONBLOCK;
3987 #if 0
3988     if ( dwFlags & WAVE_DIRECTSOUND )
3989         flags |= SND_PCM_ASYNC;
3990 #endif
3991
3992     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
3993     {
3994         ERR("Error open: %s\n", snd_strerror(err));
3995         return MMSYSERR_NOTENABLED;
3996     }
3997
3998     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
3999
4000     memcpy(&wwi->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
4001     copy_format(lpDesc->lpFormat, &wwi->format);
4002
4003     if (wwi->format.Format.wBitsPerSample == 0) {
4004         WARN("Resetting zeroed wBitsPerSample\n");
4005         wwi->format.Format.wBitsPerSample = 8 *
4006             (wwi->format.Format.nAvgBytesPerSec /
4007              wwi->format.Format.nSamplesPerSec) /
4008             wwi->format.Format.nChannels;
4009     }
4010
4011     snd_pcm_hw_params_any(pcm, hw_params);
4012
4013 #define EXIT_ON_ERROR(f,e,txt) do \
4014 { \
4015     int err; \
4016     if ( (err = (f) ) < 0) \
4017     { \
4018         WARN(txt ": %s\n", snd_strerror(err)); \
4019         snd_pcm_close(pcm); \
4020         return e; \
4021     } \
4022 } while(0)
4023
4024     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
4025     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
4026         WARN("mmap not available. switching to standard write.\n");
4027         access = SND_PCM_ACCESS_RW_INTERLEAVED;
4028         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
4029         wwi->read = snd_pcm_readi;
4030     }
4031     else
4032         wwi->read = snd_pcm_mmap_readi;
4033
4034     EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwi->format.Format.nChannels), WAVERR_BADFORMAT, "unable to set required channels");
4035
4036     if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
4037         ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
4038         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
4039         format = (wwi->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
4040                  (wwi->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
4041                  (wwi->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
4042                  (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
4043     } else if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
4044         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
4045         format = (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
4046     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
4047         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
4048         snd_pcm_close(pcm);
4049         return WAVERR_BADFORMAT;
4050     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
4051         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
4052         snd_pcm_close(pcm);
4053         return WAVERR_BADFORMAT;
4054     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
4055         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
4056         snd_pcm_close(pcm);
4057         return WAVERR_BADFORMAT;
4058     } else {
4059         ERR("invalid format: %0x04x\n", wwi->format.Format.wFormatTag);
4060         snd_pcm_close(pcm);
4061         return WAVERR_BADFORMAT;
4062     }
4063
4064     EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format");
4065
4066     rate = wwi->format.Format.nSamplesPerSec;
4067     dir = 0;
4068     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
4069     if (err < 0) {
4070         WARN("Rate %ld Hz not available for playback: %s\n", wwi->format.Format.nSamplesPerSec, snd_strerror(rate));
4071         snd_pcm_close(pcm);
4072         return WAVERR_BADFORMAT;
4073     }
4074     if (!NearMatch(rate, wwi->format.Format.nSamplesPerSec)) {
4075         WARN("Rate doesn't match (requested %ld Hz, got %d Hz)\n", wwi->format.Format.nSamplesPerSec, rate);
4076         snd_pcm_close(pcm);
4077         return WAVERR_BADFORMAT;
4078     }
4079
4080     dir=0;
4081     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
4082     dir=0;
4083     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
4084
4085     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
4086
4087     dir=0;
4088     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
4089     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
4090
4091     snd_pcm_sw_params_current(pcm, sw_params);
4092     EXIT_ON_ERROR( snd_pcm_sw_params_set_start_threshold(pcm, sw_params, dwFlags & WAVE_DIRECTSOUND ? INT_MAX : 1 ), MMSYSERR_ERROR, "unable to set start threshold");
4093     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
4094     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
4095     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
4096     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
4097     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
4098 #undef EXIT_ON_ERROR
4099
4100     snd_pcm_prepare(pcm);
4101
4102     if (TRACE_ON(wave))
4103         ALSA_TraceParameters(hw_params, sw_params, FALSE);
4104
4105     /* now, we can save all required data for later use... */
4106     if ( wwi->hw_params )
4107         snd_pcm_hw_params_free(wwi->hw_params);
4108     snd_pcm_hw_params_malloc(&(wwi->hw_params));
4109     snd_pcm_hw_params_copy(wwi->hw_params, hw_params);
4110
4111     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
4112     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
4113     wwi->pcm = pcm;
4114
4115     ALSA_InitRingMessage(&wwi->msgRing);
4116
4117     wwi->dwPeriodSize = period_size;
4118     /*if (wwi->dwFragmentSize % wwi->format.Format.nBlockAlign)
4119         ERR("Fragment doesn't contain an integral number of data blocks\n");
4120     */
4121     TRACE("dwPeriodSize=%lu\n", wwi->dwPeriodSize);
4122     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%lu, nSamplesPerSec=%lu, nChannels=%u nBlockAlign=%u!\n",
4123           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
4124           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
4125           wwi->format.Format.nBlockAlign);
4126
4127     if (!(dwFlags & WAVE_DIRECTSOUND)) {
4128         wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
4129         wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD)wDevID, 0, &(wwi->dwThreadID));
4130         if (wwi->hThread)
4131             SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
4132         WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
4133         CloseHandle(wwi->hStartUpEvent);
4134     } else {
4135         wwi->hThread = INVALID_HANDLE_VALUE;
4136         wwi->dwThreadID = 0;
4137     }
4138     wwi->hStartUpEvent = INVALID_HANDLE_VALUE;
4139
4140     return widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
4141 }
4142
4143
4144 /**************************************************************************
4145  *                              widClose                        [internal]
4146  */
4147 static DWORD widClose(WORD wDevID)
4148 {
4149     DWORD               ret = MMSYSERR_NOERROR;
4150     WINE_WAVEDEV*       wwi;
4151
4152     TRACE("(%u);\n", wDevID);
4153
4154     if (wDevID >= ALSA_WidNumDevs) {
4155         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4156         return MMSYSERR_BADDEVICEID;
4157     }
4158
4159     if (WInDev[wDevID].pcm == NULL) {
4160         WARN("Requested to close already closed device %d!\n", wDevID);
4161         return MMSYSERR_BADDEVICEID;
4162     }
4163
4164     wwi = &WInDev[wDevID];
4165     if (wwi->lpQueuePtr) {
4166         WARN("buffers still playing !\n");
4167         ret = WAVERR_STILLPLAYING;
4168     } else {
4169         if (wwi->hThread != INVALID_HANDLE_VALUE) {
4170             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
4171         }
4172         ALSA_DestroyRingMessage(&wwi->msgRing);
4173
4174         snd_pcm_hw_params_free(wwi->hw_params);
4175         wwi->hw_params = NULL;
4176
4177         snd_pcm_close(wwi->pcm);
4178         wwi->pcm = NULL;
4179
4180         ret = widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
4181     }
4182
4183     return ret;
4184 }
4185
4186 /**************************************************************************
4187  *                              widAddBuffer                    [internal]
4188  *
4189  */
4190 static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
4191 {
4192     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
4193
4194     /* first, do the sanity checks... */
4195     if (wDevID >= ALSA_WidNumDevs) {
4196         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4197         return MMSYSERR_BADDEVICEID;
4198     }
4199
4200     if (WInDev[wDevID].pcm == NULL) {
4201         WARN("Requested to add buffer to already closed device %d!\n", wDevID);
4202         return MMSYSERR_BADDEVICEID;
4203     }
4204
4205     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
4206         return WAVERR_UNPREPARED;
4207
4208     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
4209         return WAVERR_STILLPLAYING;
4210
4211     lpWaveHdr->dwFlags &= ~WHDR_DONE;
4212     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
4213     lpWaveHdr->lpNext = 0;
4214
4215     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
4216
4217     return MMSYSERR_NOERROR;
4218 }
4219
4220 /**************************************************************************
4221  *                              widStart                        [internal]
4222  *
4223  */
4224 static DWORD widStart(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
4225 {
4226     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
4227
4228     /* first, do the sanity checks... */
4229     if (wDevID >= ALSA_WidNumDevs) {
4230         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4231         return MMSYSERR_BADDEVICEID;
4232     }
4233
4234     if (WInDev[wDevID].pcm == NULL) {
4235         WARN("Requested to start closed device %d!\n", wDevID);
4236         return MMSYSERR_BADDEVICEID;
4237     }
4238
4239     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STARTING, 0, TRUE);
4240
4241     return MMSYSERR_NOERROR;
4242 }
4243
4244 /**************************************************************************
4245  *                              widStop                 [internal]
4246  *
4247  */
4248 static DWORD widStop(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
4249 {
4250     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
4251
4252     /* first, do the sanity checks... */
4253     if (wDevID >= ALSA_WidNumDevs) {
4254         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4255         return MMSYSERR_BADDEVICEID;
4256     }
4257
4258     if (WInDev[wDevID].pcm == NULL) {
4259         WARN("Requested to stop closed device %d!\n", wDevID);
4260         return MMSYSERR_BADDEVICEID;
4261     }
4262
4263     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STOPPING, 0, TRUE);
4264
4265     return MMSYSERR_NOERROR;
4266 }
4267
4268 /**************************************************************************
4269  *                      widReset                                [internal]
4270  */
4271 static DWORD widReset(WORD wDevID)
4272 {
4273     TRACE("(%u);\n", wDevID);
4274     if (wDevID >= ALSA_WidNumDevs) {
4275         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4276         return MMSYSERR_BADDEVICEID;
4277     }
4278
4279     if (WInDev[wDevID].pcm == NULL) {
4280         WARN("Requested to reset closed device %d!\n", wDevID);
4281         return MMSYSERR_BADDEVICEID;
4282     }
4283
4284     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
4285     return MMSYSERR_NOERROR;
4286 }
4287
4288 /**************************************************************************
4289  *                              widGetPosition                  [internal]
4290  */
4291 static DWORD widGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
4292 {
4293     WINE_WAVEDEV*       wwi;
4294
4295     TRACE("(%u, %p, %lu);\n", wDevID, lpTime, uSize);
4296
4297     if (wDevID >= ALSA_WidNumDevs) {
4298         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4299         return MMSYSERR_BADDEVICEID;
4300     }
4301
4302     if (WInDev[wDevID].state == WINE_WS_CLOSED) {
4303         WARN("Requested position of closed device %d!\n", wDevID);
4304         return MMSYSERR_BADDEVICEID;
4305     }
4306
4307     if (lpTime == NULL) {
4308         WARN("invalid parameter: lpTime = NULL\n");
4309         return MMSYSERR_INVALPARAM;
4310     }
4311
4312     wwi = &WInDev[wDevID];
4313     ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_UPDATE, 0, TRUE);
4314
4315     return bytes_to_mmtime(lpTime, wwi->dwTotalRecorded, &wwi->format);
4316 }
4317
4318 /**************************************************************************
4319  *                              widGetNumDevs                   [internal]
4320  */
4321 static  DWORD   widGetNumDevs(void)
4322 {
4323     return ALSA_WidNumDevs;
4324 }
4325
4326 /**************************************************************************
4327  *                              widDevInterfaceSize             [internal]
4328  */
4329 static DWORD widDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
4330 {
4331     TRACE("(%u, %p)\n", wDevID, dwParam1);
4332
4333     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
4334                                     NULL, 0 ) * sizeof(WCHAR);
4335     return MMSYSERR_NOERROR;
4336 }
4337
4338 /**************************************************************************
4339  *                              widDevInterface                 [internal]
4340  */
4341 static DWORD widDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
4342 {
4343     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
4344                                         NULL, 0 ) * sizeof(WCHAR))
4345     {
4346         MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
4347                             dwParam1, dwParam2 / sizeof(WCHAR));
4348         return MMSYSERR_NOERROR;
4349     }
4350     return MMSYSERR_INVALPARAM;
4351 }
4352
4353 /**************************************************************************
4354  *                              widDsCreate                     [internal]
4355  */
4356 static DWORD widDsCreate(UINT wDevID, PIDSCDRIVER* drv)
4357 {
4358     TRACE("(%d,%p)\n",wDevID,drv);
4359
4360     /* the HAL isn't much better than the HEL if we can't do mmap() */
4361     FIXME("DirectSoundCapture not implemented\n");
4362     MESSAGE("The (slower) DirectSound HEL mode will be used instead.\n");
4363     return MMSYSERR_NOTSUPPORTED;
4364 }
4365
4366 /**************************************************************************
4367  *                              widDsDesc                       [internal]
4368  */
4369 static DWORD widDsDesc(UINT wDevID, PDSDRIVERDESC desc)
4370 {
4371     memcpy(desc, &(WInDev[wDevID].ds_desc), sizeof(DSDRIVERDESC));
4372     return MMSYSERR_NOERROR;
4373 }
4374
4375 /**************************************************************************
4376  *                              widMessage (WINEALSA.@)
4377  */
4378 DWORD WINAPI ALSA_widMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
4379                              DWORD dwParam1, DWORD dwParam2)
4380 {
4381     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
4382           wDevID, getMessage(wMsg), dwUser, dwParam1, dwParam2);
4383
4384     switch (wMsg) {
4385     case DRVM_INIT:
4386     case DRVM_EXIT:
4387     case DRVM_ENABLE:
4388     case DRVM_DISABLE:
4389         /* FIXME: Pretend this is supported */
4390         return 0;
4391     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
4392     case WIDM_CLOSE:            return widClose         (wDevID);
4393     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
4394     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
4395     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
4396     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
4397     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
4398     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
4399     case WIDM_RESET:            return widReset         (wDevID);
4400     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
4401     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
4402     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
4403     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
4404     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
4405     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
4406     default:
4407         FIXME("unknown message %d!\n", wMsg);
4408     }
4409     return MMSYSERR_NOTSUPPORTED;
4410 }
4411
4412 #else
4413
4414 /**************************************************************************
4415  *                              widMessage (WINEALSA.@)
4416  */
4417 DWORD WINAPI ALSA_widMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
4418                              DWORD dwParam1, DWORD dwParam2)
4419 {
4420     FIXME("(%u, %04X, %08lX, %08lX, %08lX):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
4421     return MMSYSERR_NOTENABLED;
4422 }
4423
4424 /**************************************************************************
4425  *                              wodMessage (WINEALSA.@)
4426  */
4427 DWORD WINAPI ALSA_wodMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
4428                              DWORD dwParam1, DWORD dwParam2)
4429 {
4430     FIXME("(%u, %04X, %08lX, %08lX, %08lX):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
4431     return MMSYSERR_NOTENABLED;
4432 }
4433
4434 #endif /* HAVE_ALSA */