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     omr->msg_crst.DebugInfo->Spare[0] = (DWORD_PTR)"WINEALSA_msg_crst";
1667     return 0;
1668 }
1669
1670 /******************************************************************
1671  *              ALSA_DestroyRingMessage
1672  *
1673  */
1674 static int ALSA_DestroyRingMessage(ALSA_MSG_RING* omr)
1675 {
1676 #ifdef USE_PIPE_SYNC
1677     close(omr->msg_pipe[0]);
1678     close(omr->msg_pipe[1]);
1679 #else
1680     CloseHandle(omr->msg_event);
1681 #endif
1682     HeapFree(GetProcessHeap(),0,omr->messages);
1683     omr->ring_buffer_size = 0;
1684     omr->msg_crst.DebugInfo->Spare[0] = 0;
1685     DeleteCriticalSection(&omr->msg_crst);
1686     return 0;
1687 }
1688
1689 /******************************************************************
1690  *              ALSA_AddRingMessage
1691  *
1692  * Inserts a new message into the ring (should be called from DriverProc derivated routines)
1693  */
1694 static int ALSA_AddRingMessage(ALSA_MSG_RING* omr, enum win_wm_message msg, DWORD param, BOOL wait)
1695 {
1696     HANDLE      hEvent = INVALID_HANDLE_VALUE;
1697
1698     EnterCriticalSection(&omr->msg_crst);
1699     if ((omr->msg_toget == ((omr->msg_tosave + 1) % omr->ring_buffer_size)))
1700     {
1701         int old_ring_buffer_size = omr->ring_buffer_size;
1702         omr->ring_buffer_size += ALSA_RING_BUFFER_INCREMENT;
1703         TRACE("omr->ring_buffer_size=%d\n",omr->ring_buffer_size);
1704         omr->messages = HeapReAlloc(GetProcessHeap(),0,omr->messages, omr->ring_buffer_size * sizeof(ALSA_MSG));
1705         /* Now we need to rearrange the ring buffer so that the new
1706            buffers just allocated are in between omr->msg_tosave and
1707            omr->msg_toget.
1708         */
1709         if (omr->msg_tosave < omr->msg_toget)
1710         {
1711             memmove(&(omr->messages[omr->msg_toget + ALSA_RING_BUFFER_INCREMENT]),
1712                     &(omr->messages[omr->msg_toget]),
1713                     sizeof(ALSA_MSG)*(old_ring_buffer_size - omr->msg_toget)
1714                     );
1715             omr->msg_toget += ALSA_RING_BUFFER_INCREMENT;
1716         }
1717     }
1718     if (wait)
1719     {
1720         hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
1721         if (hEvent == INVALID_HANDLE_VALUE)
1722         {
1723             ERR("can't create event !?\n");
1724             LeaveCriticalSection(&omr->msg_crst);
1725             return 0;
1726         }
1727         if (omr->msg_toget != omr->msg_tosave && omr->messages[omr->msg_toget].msg != WINE_WM_HEADER)
1728             FIXME("two fast messages in the queue!!!! toget = %d(%s), tosave=%d(%s)\n",
1729                   omr->msg_toget,getCmdString(omr->messages[omr->msg_toget].msg),
1730                   omr->msg_tosave,getCmdString(omr->messages[omr->msg_tosave].msg));
1731
1732         /* fast messages have to be added at the start of the queue */
1733         omr->msg_toget = (omr->msg_toget + omr->ring_buffer_size - 1) % omr->ring_buffer_size;
1734
1735         omr->messages[omr->msg_toget].msg = msg;
1736         omr->messages[omr->msg_toget].param = param;
1737         omr->messages[omr->msg_toget].hEvent = hEvent;
1738     }
1739     else
1740     {
1741         omr->messages[omr->msg_tosave].msg = msg;
1742         omr->messages[omr->msg_tosave].param = param;
1743         omr->messages[omr->msg_tosave].hEvent = INVALID_HANDLE_VALUE;
1744         omr->msg_tosave = (omr->msg_tosave + 1) % omr->ring_buffer_size;
1745     }
1746     LeaveCriticalSection(&omr->msg_crst);
1747     /* signal a new message */
1748     SIGNAL_OMR(omr);
1749     if (wait)
1750     {
1751         /* wait for playback/record thread to have processed the message */
1752         WaitForSingleObject(hEvent, INFINITE);
1753         CloseHandle(hEvent);
1754     }
1755     return 1;
1756 }
1757
1758 /******************************************************************
1759  *              ALSA_RetrieveRingMessage
1760  *
1761  * Get a message from the ring. Should be called by the playback/record thread.
1762  */
1763 static int ALSA_RetrieveRingMessage(ALSA_MSG_RING* omr,
1764                                    enum win_wm_message *msg, DWORD *param, HANDLE *hEvent)
1765 {
1766     EnterCriticalSection(&omr->msg_crst);
1767
1768     if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
1769     {
1770         LeaveCriticalSection(&omr->msg_crst);
1771         return 0;
1772     }
1773
1774     *msg = omr->messages[omr->msg_toget].msg;
1775     omr->messages[omr->msg_toget].msg = 0;
1776     *param = omr->messages[omr->msg_toget].param;
1777     *hEvent = omr->messages[omr->msg_toget].hEvent;
1778     omr->msg_toget = (omr->msg_toget + 1) % omr->ring_buffer_size;
1779     CLEAR_OMR(omr);
1780     LeaveCriticalSection(&omr->msg_crst);
1781     return 1;
1782 }
1783
1784 /******************************************************************
1785  *              ALSA_PeekRingMessage
1786  *
1787  * Peek at a message from the ring but do not remove it.
1788  * Should be called by the playback/record thread.
1789  */
1790 static int ALSA_PeekRingMessage(ALSA_MSG_RING* omr,
1791                                enum win_wm_message *msg,
1792                                DWORD *param, HANDLE *hEvent)
1793 {
1794     EnterCriticalSection(&omr->msg_crst);
1795
1796     if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
1797     {
1798         LeaveCriticalSection(&omr->msg_crst);
1799         return 0;
1800     }
1801
1802     *msg = omr->messages[omr->msg_toget].msg;
1803     *param = omr->messages[omr->msg_toget].param;
1804     *hEvent = omr->messages[omr->msg_toget].hEvent;
1805     LeaveCriticalSection(&omr->msg_crst);
1806     return 1;
1807 }
1808
1809 /*======================================================================*
1810  *                  Low level WAVE OUT implementation                   *
1811  *======================================================================*/
1812
1813 /**************************************************************************
1814  *                      wodNotifyClient                 [internal]
1815  */
1816 static DWORD wodNotifyClient(WINE_WAVEDEV* wwo, WORD wMsg, DWORD dwParam1, DWORD dwParam2)
1817 {
1818     TRACE("wMsg = 0x%04x dwParm1 = %04lX dwParam2 = %04lX\n", wMsg, dwParam1, dwParam2);
1819
1820     switch (wMsg) {
1821     case WOM_OPEN:
1822     case WOM_CLOSE:
1823     case WOM_DONE:
1824         if (wwo->wFlags != DCB_NULL &&
1825             !DriverCallback(wwo->waveDesc.dwCallback, wwo->wFlags, (HDRVR)wwo->waveDesc.hWave,
1826                             wMsg, wwo->waveDesc.dwInstance, dwParam1, dwParam2)) {
1827             WARN("can't notify client !\n");
1828             return MMSYSERR_ERROR;
1829         }
1830         break;
1831     default:
1832         FIXME("Unknown callback message %u\n", wMsg);
1833         return MMSYSERR_INVALPARAM;
1834     }
1835     return MMSYSERR_NOERROR;
1836 }
1837
1838 /**************************************************************************
1839  *                              wodUpdatePlayedTotal    [internal]
1840  *
1841  */
1842 static BOOL wodUpdatePlayedTotal(WINE_WAVEDEV* wwo, snd_pcm_status_t* ps)
1843 {
1844     snd_pcm_sframes_t delay = 0;
1845     snd_pcm_state_t state;
1846
1847     state = snd_pcm_state(wwo->pcm);
1848     snd_pcm_delay(wwo->pcm, &delay);
1849
1850     /* A delay < 0 indicates an underrun; for our purposes that's 0.  */
1851     if ( (state != SND_PCM_STATE_RUNNING && state != SND_PCM_STATE_PREPARED) || (delay < 0))
1852     {
1853         WARN("Unexpected state (%d) or delay (%ld) while updating Total Played, resetting\n", state, delay);
1854         delay=0;
1855     }
1856     wwo->dwPlayedTotal = wwo->dwWrittenTotal - snd_pcm_frames_to_bytes(wwo->pcm, delay);
1857     return TRUE;
1858 }
1859
1860 /**************************************************************************
1861  *                              wodPlayer_BeginWaveHdr          [internal]
1862  *
1863  * Makes the specified lpWaveHdr the currently playing wave header.
1864  * If the specified wave header is a begin loop and we're not already in
1865  * a loop, setup the loop.
1866  */
1867 static void wodPlayer_BeginWaveHdr(WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
1868 {
1869     wwo->lpPlayPtr = lpWaveHdr;
1870
1871     if (!lpWaveHdr) return;
1872
1873     if (lpWaveHdr->dwFlags & WHDR_BEGINLOOP) {
1874         if (wwo->lpLoopPtr) {
1875             WARN("Already in a loop. Discarding loop on this header (%p)\n", lpWaveHdr);
1876         } else {
1877             TRACE("Starting loop (%ldx) with %p\n", lpWaveHdr->dwLoops, lpWaveHdr);
1878             wwo->lpLoopPtr = lpWaveHdr;
1879             /* Windows does not touch WAVEHDR.dwLoops,
1880              * so we need to make an internal copy */
1881             wwo->dwLoops = lpWaveHdr->dwLoops;
1882         }
1883     }
1884     wwo->dwPartialOffset = 0;
1885 }
1886
1887 /**************************************************************************
1888  *                              wodPlayer_PlayPtrNext           [internal]
1889  *
1890  * Advance the play pointer to the next waveheader, looping if required.
1891  */
1892 static LPWAVEHDR wodPlayer_PlayPtrNext(WINE_WAVEDEV* wwo)
1893 {
1894     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
1895
1896     wwo->dwPartialOffset = 0;
1897     if ((lpWaveHdr->dwFlags & WHDR_ENDLOOP) && wwo->lpLoopPtr) {
1898         /* We're at the end of a loop, loop if required */
1899         if (--wwo->dwLoops > 0) {
1900             wwo->lpPlayPtr = wwo->lpLoopPtr;
1901         } else {
1902             /* Handle overlapping loops correctly */
1903             if (wwo->lpLoopPtr != lpWaveHdr && (lpWaveHdr->dwFlags & WHDR_BEGINLOOP)) {
1904                 FIXME("Correctly handled case ? (ending loop buffer also starts a new loop)\n");
1905                 /* shall we consider the END flag for the closing loop or for
1906                  * the opening one or for both ???
1907                  * code assumes for closing loop only
1908                  */
1909             } else {
1910                 lpWaveHdr = lpWaveHdr->lpNext;
1911             }
1912             wwo->lpLoopPtr = NULL;
1913             wodPlayer_BeginWaveHdr(wwo, lpWaveHdr);
1914         }
1915     } else {
1916         /* We're not in a loop.  Advance to the next wave header */
1917         wodPlayer_BeginWaveHdr(wwo, lpWaveHdr = lpWaveHdr->lpNext);
1918     }
1919
1920     return lpWaveHdr;
1921 }
1922
1923 /**************************************************************************
1924  *                           wodPlayer_DSPWait                  [internal]
1925  * Returns the number of milliseconds to wait for the DSP buffer to play a
1926  * period
1927  */
1928 static DWORD wodPlayer_DSPWait(const WINE_WAVEDEV *wwo)
1929 {
1930     /* time for one period to be played */
1931     unsigned int val=0;
1932     int dir=0;
1933     int err=0;
1934     err = snd_pcm_hw_params_get_period_time(wwo->hw_params, &val, &dir);
1935     return val / 1000;
1936 }
1937
1938 /**************************************************************************
1939  *                           wodPlayer_NotifyWait               [internal]
1940  * Returns the number of milliseconds to wait before attempting to notify
1941  * completion of the specified wavehdr.
1942  * This is based on the number of bytes remaining to be written in the
1943  * wave.
1944  */
1945 static DWORD wodPlayer_NotifyWait(const WINE_WAVEDEV* wwo, LPWAVEHDR lpWaveHdr)
1946 {
1947     DWORD dwMillis;
1948
1949     if (lpWaveHdr->reserved < wwo->dwPlayedTotal) {
1950         dwMillis = 1;
1951     } else {
1952         dwMillis = (lpWaveHdr->reserved - wwo->dwPlayedTotal) * 1000 / wwo->format.Format.nAvgBytesPerSec;
1953         if (!dwMillis) dwMillis = 1;
1954     }
1955
1956     return dwMillis;
1957 }
1958
1959
1960 /**************************************************************************
1961  *                           wodPlayer_WriteMaxFrags            [internal]
1962  * Writes the maximum number of frames possible to the DSP and returns
1963  * the number of frames written.
1964  */
1965 static int wodPlayer_WriteMaxFrags(WINE_WAVEDEV* wwo, DWORD* frames)
1966 {
1967     /* Only attempt to write to free frames */
1968     LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
1969     DWORD dwLength = snd_pcm_bytes_to_frames(wwo->pcm, lpWaveHdr->dwBufferLength - wwo->dwPartialOffset);
1970     int toWrite = min(dwLength, *frames);
1971     int written;
1972
1973     TRACE("Writing wavehdr %p.%lu[%lu]\n", lpWaveHdr, wwo->dwPartialOffset, lpWaveHdr->dwBufferLength);
1974
1975     if (toWrite > 0) {
1976         written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
1977         if ( written < 0) {
1978             /* XRUN occurred. let's try to recover */
1979             ALSA_XRUNRecovery(wwo, written);
1980             written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
1981         }
1982         if (written <= 0) {
1983             /* still in error */
1984             ERR("Error in writing wavehdr. Reason: %s\n", snd_strerror(written));
1985             return written;
1986         }
1987     } else
1988         written = 0;
1989
1990     wwo->dwPartialOffset += snd_pcm_frames_to_bytes(wwo->pcm, written);
1991     if ( wwo->dwPartialOffset >= lpWaveHdr->dwBufferLength) {
1992         /* this will be used to check if the given wave header has been fully played or not... */
1993         wwo->dwPartialOffset = lpWaveHdr->dwBufferLength;
1994         /* If we wrote all current wavehdr, skip to the next one */
1995         wodPlayer_PlayPtrNext(wwo);
1996     }
1997     *frames -= written;
1998     wwo->dwWrittenTotal += snd_pcm_frames_to_bytes(wwo->pcm, written);
1999     TRACE("dwWrittenTotal=%lu\n", wwo->dwWrittenTotal);
2000
2001     return written;
2002 }
2003
2004
2005 /**************************************************************************
2006  *                              wodPlayer_NotifyCompletions     [internal]
2007  *
2008  * Notifies and remove from queue all wavehdrs which have been played to
2009  * the speaker (ie. they have cleared the ALSA buffer).  If force is true,
2010  * we notify all wavehdrs and remove them all from the queue even if they
2011  * are unplayed or part of a loop.
2012  */
2013 static DWORD wodPlayer_NotifyCompletions(WINE_WAVEDEV* wwo, BOOL force)
2014 {
2015     LPWAVEHDR           lpWaveHdr;
2016
2017     /* Start from lpQueuePtr and keep notifying until:
2018      * - we hit an unwritten wavehdr
2019      * - we hit the beginning of a running loop
2020      * - we hit a wavehdr which hasn't finished playing
2021      */
2022 #if 0
2023     while ((lpWaveHdr = wwo->lpQueuePtr) &&
2024            (force ||
2025             (lpWaveHdr != wwo->lpPlayPtr &&
2026              lpWaveHdr != wwo->lpLoopPtr &&
2027              lpWaveHdr->reserved <= wwo->dwPlayedTotal))) {
2028
2029         wwo->lpQueuePtr = lpWaveHdr->lpNext;
2030
2031         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
2032         lpWaveHdr->dwFlags |= WHDR_DONE;
2033
2034         wodNotifyClient(wwo, WOM_DONE, (DWORD)lpWaveHdr, 0);
2035     }
2036 #else
2037     for (;;)
2038     {
2039         lpWaveHdr = wwo->lpQueuePtr;
2040         if (!lpWaveHdr) {TRACE("Empty queue\n"); break;}
2041         if (!force)
2042         {
2043             if (lpWaveHdr == wwo->lpPlayPtr) {TRACE("play %p\n", lpWaveHdr); break;}
2044             if (lpWaveHdr == wwo->lpLoopPtr) {TRACE("loop %p\n", lpWaveHdr); break;}
2045             if (lpWaveHdr->reserved > wwo->dwPlayedTotal){TRACE("still playing %p (%lu/%lu)\n", lpWaveHdr, lpWaveHdr->reserved, wwo->dwPlayedTotal);break;}
2046         }
2047         wwo->lpQueuePtr = lpWaveHdr->lpNext;
2048
2049         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
2050         lpWaveHdr->dwFlags |= WHDR_DONE;
2051
2052         wodNotifyClient(wwo, WOM_DONE, (DWORD)lpWaveHdr, 0);
2053     }
2054 #endif
2055     return  (lpWaveHdr && lpWaveHdr != wwo->lpPlayPtr && lpWaveHdr != wwo->lpLoopPtr) ?
2056         wodPlayer_NotifyWait(wwo, lpWaveHdr) : INFINITE;
2057 }
2058
2059
2060 /**************************************************************************
2061  *                              wodPlayer_Reset                 [internal]
2062  *
2063  * wodPlayer helper. Resets current output stream.
2064  */
2065 static  void    wodPlayer_Reset(WINE_WAVEDEV* wwo)
2066 {
2067     enum win_wm_message msg;
2068     DWORD                       param;
2069     HANDLE                      ev;
2070     int                         err;
2071     TRACE("(%p)\n", wwo);
2072
2073     /* flush all possible output */
2074     snd_pcm_drain(wwo->pcm);
2075
2076     wodUpdatePlayedTotal(wwo, NULL);
2077     /* updates current notify list */
2078     wodPlayer_NotifyCompletions(wwo, FALSE);
2079
2080     if ( (err = snd_pcm_drop(wwo->pcm)) < 0) {
2081         FIXME("flush: %s\n", snd_strerror(err));
2082         wwo->hThread = 0;
2083         wwo->state = WINE_WS_STOPPED;
2084         ExitThread(-1);
2085     }
2086     if ( (err = snd_pcm_prepare(wwo->pcm)) < 0 )
2087         ERR("pcm prepare failed: %s\n", snd_strerror(err));
2088
2089     /* remove any buffer */
2090     wodPlayer_NotifyCompletions(wwo, TRUE);
2091
2092     wwo->lpPlayPtr = wwo->lpQueuePtr = wwo->lpLoopPtr = NULL;
2093     wwo->state = WINE_WS_STOPPED;
2094     wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
2095     /* Clear partial wavehdr */
2096     wwo->dwPartialOffset = 0;
2097
2098     /* remove any existing message in the ring */
2099     EnterCriticalSection(&wwo->msgRing.msg_crst);
2100     /* return all pending headers in queue */
2101     while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev))
2102     {
2103         if (msg != WINE_WM_HEADER)
2104         {
2105             FIXME("shouldn't have headers left\n");
2106             SetEvent(ev);
2107             continue;
2108         }
2109         ((LPWAVEHDR)param)->dwFlags &= ~WHDR_INQUEUE;
2110         ((LPWAVEHDR)param)->dwFlags |= WHDR_DONE;
2111
2112         wodNotifyClient(wwo, WOM_DONE, param, 0);
2113     }
2114     RESET_OMR(&wwo->msgRing);
2115     LeaveCriticalSection(&wwo->msgRing.msg_crst);
2116 }
2117
2118 /**************************************************************************
2119  *                    wodPlayer_ProcessMessages                 [internal]
2120  */
2121 static void wodPlayer_ProcessMessages(WINE_WAVEDEV* wwo)
2122 {
2123     LPWAVEHDR           lpWaveHdr;
2124     enum win_wm_message msg;
2125     DWORD               param;
2126     HANDLE              ev;
2127     int                 err;
2128
2129     while (ALSA_RetrieveRingMessage(&wwo->msgRing, &msg, &param, &ev)) {
2130      TRACE("Received %s %lx\n", getCmdString(msg), param);
2131
2132         switch (msg) {
2133         case WINE_WM_PAUSING:
2134             if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_RUNNING )
2135              {
2136                 err = snd_pcm_pause(wwo->pcm, 1);
2137                 if ( err < 0 )
2138                     ERR("pcm_pause failed: %s\n", snd_strerror(err));
2139              }
2140             wwo->state = WINE_WS_PAUSED;
2141             SetEvent(ev);
2142             break;
2143         case WINE_WM_RESTARTING:
2144             if (wwo->state == WINE_WS_PAUSED)
2145             {
2146                 if ( snd_pcm_state(wwo->pcm) == SND_PCM_STATE_PAUSED )
2147                  {
2148                     err = snd_pcm_pause(wwo->pcm, 0);
2149                     if ( err < 0 )
2150                         ERR("pcm_pause failed: %s\n", snd_strerror(err));
2151                  }
2152                 wwo->state = WINE_WS_PLAYING;
2153             }
2154             SetEvent(ev);
2155             break;
2156         case WINE_WM_HEADER:
2157             lpWaveHdr = (LPWAVEHDR)param;
2158
2159             /* insert buffer at the end of queue */
2160             {
2161                 LPWAVEHDR*      wh;
2162                 for (wh = &(wwo->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
2163                 *wh = lpWaveHdr;
2164             }
2165             if (!wwo->lpPlayPtr)
2166                 wodPlayer_BeginWaveHdr(wwo,lpWaveHdr);
2167             if (wwo->state == WINE_WS_STOPPED)
2168                 wwo->state = WINE_WS_PLAYING;
2169             break;
2170         case WINE_WM_RESETTING:
2171             wodPlayer_Reset(wwo);
2172             SetEvent(ev);
2173             break;
2174         case WINE_WM_UPDATE:
2175             wodUpdatePlayedTotal(wwo, NULL);
2176             SetEvent(ev);
2177             break;
2178         case WINE_WM_BREAKLOOP:
2179             if (wwo->state == WINE_WS_PLAYING && wwo->lpLoopPtr != NULL) {
2180                 /* ensure exit at end of current loop */
2181                 wwo->dwLoops = 1;
2182             }
2183             SetEvent(ev);
2184             break;
2185         case WINE_WM_CLOSING:
2186             /* sanity check: this should not happen since the device must have been reset before */
2187             if (wwo->lpQueuePtr || wwo->lpPlayPtr) ERR("out of sync\n");
2188             wwo->hThread = 0;
2189             wwo->state = WINE_WS_CLOSED;
2190             SetEvent(ev);
2191             ExitThread(0);
2192             /* shouldn't go here */
2193         default:
2194             FIXME("unknown message %d\n", msg);
2195             break;
2196         }
2197     }
2198 }
2199
2200 /**************************************************************************
2201  *                           wodPlayer_FeedDSP                  [internal]
2202  * Feed as much sound data as we can into the DSP and return the number of
2203  * milliseconds before it will be necessary to feed the DSP again.
2204  */
2205 static DWORD wodPlayer_FeedDSP(WINE_WAVEDEV* wwo)
2206 {
2207     DWORD               availInQ;
2208
2209     wodUpdatePlayedTotal(wwo, NULL);
2210     availInQ = snd_pcm_avail_update(wwo->pcm);
2211
2212 #if 0
2213     /* input queue empty and output buffer with less than one fragment to play */
2214     if (!wwo->lpPlayPtr && wwo->dwBufferSize < availInQ + wwo->dwFragmentSize) {
2215         TRACE("Run out of wavehdr:s...\n");
2216         return INFINITE;
2217     }
2218 #endif
2219     /* no more room... no need to try to feed */
2220     if (availInQ > 0) {
2221         /* Feed from partial wavehdr */
2222         if (wwo->lpPlayPtr && wwo->dwPartialOffset != 0) {
2223             wodPlayer_WriteMaxFrags(wwo, &availInQ);
2224         }
2225
2226         /* Feed wavehdrs until we run out of wavehdrs or DSP space */
2227         if (wwo->dwPartialOffset == 0 && wwo->lpPlayPtr) {
2228             do {
2229                 TRACE("Setting time to elapse for %p to %lu\n",
2230                       wwo->lpPlayPtr, wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength);
2231                 /* note the value that dwPlayedTotal will return when this wave finishes playing */
2232                 wwo->lpPlayPtr->reserved = wwo->dwWrittenTotal + wwo->lpPlayPtr->dwBufferLength;
2233             } while (wodPlayer_WriteMaxFrags(wwo, &availInQ) && wwo->lpPlayPtr && availInQ > 0);
2234         }
2235     }
2236
2237     return wodPlayer_DSPWait(wwo);
2238 }
2239
2240 /**************************************************************************
2241  *                              wodPlayer                       [internal]
2242  */
2243 static  DWORD   CALLBACK        wodPlayer(LPVOID pmt)
2244 {
2245     WORD          uDevID = (DWORD)pmt;
2246     WINE_WAVEDEV* wwo = (WINE_WAVEDEV*)&WOutDev[uDevID];
2247     DWORD         dwNextFeedTime = INFINITE;   /* Time before DSP needs feeding */
2248     DWORD         dwNextNotifyTime = INFINITE; /* Time before next wave completion */
2249     DWORD         dwSleepTime;
2250
2251     wwo->state = WINE_WS_STOPPED;
2252     SetEvent(wwo->hStartUpEvent);
2253
2254     for (;;) {
2255         /** Wait for the shortest time before an action is required.  If there
2256          *  are no pending actions, wait forever for a command.
2257          */
2258         dwSleepTime = min(dwNextFeedTime, dwNextNotifyTime);
2259         TRACE("waiting %lums (%lu,%lu)\n", dwSleepTime, dwNextFeedTime, dwNextNotifyTime);
2260         WAIT_OMR(&wwo->msgRing, dwSleepTime);
2261         wodPlayer_ProcessMessages(wwo);
2262         if (wwo->state == WINE_WS_PLAYING) {
2263             dwNextFeedTime = wodPlayer_FeedDSP(wwo);
2264             dwNextNotifyTime = wodPlayer_NotifyCompletions(wwo, FALSE);
2265             if (dwNextFeedTime == INFINITE) {
2266                 /* FeedDSP ran out of data, but before giving up, */
2267                 /* check that a notification didn't give us more */
2268                 wodPlayer_ProcessMessages(wwo);
2269                 if (wwo->lpPlayPtr) {
2270                     TRACE("recovering\n");
2271                     dwNextFeedTime = wodPlayer_FeedDSP(wwo);
2272                 }
2273             }
2274         } else {
2275             dwNextFeedTime = dwNextNotifyTime = INFINITE;
2276         }
2277     }
2278 }
2279
2280 /**************************************************************************
2281  *                      wodGetDevCaps                           [internal]
2282  */
2283 static DWORD wodGetDevCaps(WORD wDevID, LPWAVEOUTCAPSW lpCaps, DWORD dwSize)
2284 {
2285     TRACE("(%u, %p, %lu);\n", wDevID, lpCaps, dwSize);
2286
2287     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
2288
2289     if (wDevID >= ALSA_WodNumDevs) {
2290         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2291         return MMSYSERR_BADDEVICEID;
2292     }
2293
2294     memcpy(lpCaps, &WOutDev[wDevID].outcaps, min(dwSize, sizeof(*lpCaps)));
2295     return MMSYSERR_NOERROR;
2296 }
2297
2298 /**************************************************************************
2299  *                              wodOpen                         [internal]
2300  */
2301 static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
2302 {
2303     WINE_WAVEDEV*               wwo;
2304     snd_pcm_t *                 pcm = NULL;
2305     snd_hctl_t *                hctl = NULL;
2306     snd_pcm_hw_params_t *       hw_params = NULL;
2307     snd_pcm_sw_params_t *       sw_params;
2308     snd_pcm_access_t            access;
2309     snd_pcm_format_t            format = -1;
2310     unsigned int                rate;
2311     unsigned int                buffer_time = 500000;
2312     unsigned int                period_time = 10000;
2313     snd_pcm_uframes_t           buffer_size;
2314     snd_pcm_uframes_t           period_size;
2315     int                         flags;
2316     int                         err=0;
2317     int                         dir=0;
2318     DWORD                       retcode = 0;
2319
2320     snd_pcm_sw_params_alloca(&sw_params);
2321
2322     TRACE("(%u, %p, %08lX);\n", wDevID, lpDesc, dwFlags);
2323     if (lpDesc == NULL) {
2324         WARN("Invalid Parameter !\n");
2325         return MMSYSERR_INVALPARAM;
2326     }
2327     if (wDevID >= ALSA_WodNumDevs) {
2328         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2329         return MMSYSERR_BADDEVICEID;
2330     }
2331
2332     /* only PCM format is supported so far... */
2333     if (!supportedFormat(lpDesc->lpFormat)) {
2334         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
2335              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
2336              lpDesc->lpFormat->nSamplesPerSec);
2337         return WAVERR_BADFORMAT;
2338     }
2339
2340     if (dwFlags & WAVE_FORMAT_QUERY) {
2341         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
2342              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
2343              lpDesc->lpFormat->nSamplesPerSec);
2344         return MMSYSERR_NOERROR;
2345     }
2346
2347     wwo = &WOutDev[wDevID];
2348
2349     if (wwo->pcm != NULL) {
2350         WARN("%d already allocated\n", wDevID);
2351         return MMSYSERR_ALLOCATED;
2352     }
2353
2354     if ((dwFlags & WAVE_DIRECTSOUND) && !(wwo->outcaps.dwSupport & WAVECAPS_DIRECTSOUND))
2355         /* not supported, ignore it */
2356         dwFlags &= ~WAVE_DIRECTSOUND;
2357
2358     flags = SND_PCM_NONBLOCK;
2359
2360     /* FIXME - why is this ifdefed? */
2361 #if 0
2362     if ( dwFlags & WAVE_DIRECTSOUND )
2363         flags |= SND_PCM_ASYNC;
2364 #endif
2365
2366     if ( (err = snd_pcm_open(&pcm, wwo->pcmname, SND_PCM_STREAM_PLAYBACK, flags)) < 0)
2367     {
2368         ERR("Error open: %s\n", snd_strerror(err));
2369         return MMSYSERR_NOTENABLED;
2370     }
2371
2372     if (wwo->ctlname)
2373     {
2374         err = snd_hctl_open(&hctl, wwo->ctlname, 0);
2375         if (err >= 0)
2376         {
2377             snd_hctl_load(hctl);
2378         }
2379         else
2380         {
2381             WARN("Could not open hctl for [%s]: %s\n", wwo->ctlname, snd_strerror(err));
2382             hctl = NULL;
2383         }
2384     }
2385
2386     wwo->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
2387
2388     memcpy(&wwo->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
2389     copy_format(lpDesc->lpFormat, &wwo->format);
2390
2391     TRACE("Requested this format: %ldx%dx%d %s\n",
2392           wwo->format.Format.nSamplesPerSec,
2393           wwo->format.Format.wBitsPerSample,
2394           wwo->format.Format.nChannels,
2395           getFormat(wwo->format.Format.wFormatTag));
2396
2397     if (wwo->format.Format.wBitsPerSample == 0) {
2398         WARN("Resetting zeroed wBitsPerSample\n");
2399         wwo->format.Format.wBitsPerSample = 8 *
2400             (wwo->format.Format.nAvgBytesPerSec /
2401              wwo->format.Format.nSamplesPerSec) /
2402             wwo->format.Format.nChannels;
2403     }
2404
2405 #define EXIT_ON_ERROR(f,e,txt) do \
2406 { \
2407     int err; \
2408     if ( (err = (f) ) < 0) \
2409     { \
2410         WARN(txt ": %s\n", snd_strerror(err)); \
2411         retcode=e; \
2412         goto errexit; \
2413     } \
2414 } while(0)
2415
2416     snd_pcm_hw_params_malloc(&hw_params);
2417     if (! hw_params)
2418     {
2419         retcode = MMSYSERR_NOMEM;
2420         goto errexit;
2421     }
2422     snd_pcm_hw_params_any(pcm, hw_params);
2423
2424     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
2425     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
2426         WARN("mmap not available. switching to standard write.\n");
2427         access = SND_PCM_ACCESS_RW_INTERLEAVED;
2428         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
2429         wwo->write = snd_pcm_writei;
2430     }
2431     else
2432         wwo->write = snd_pcm_mmap_writei;
2433
2434     if ((err = snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels)) < 0) {
2435         WARN("unable to set required channels: %d\n", wwo->format.Format.nChannels);
2436         if (dwFlags & WAVE_DIRECTSOUND) {
2437             if (wwo->format.Format.nChannels > 2)
2438                 wwo->format.Format.nChannels = 2;
2439             else if (wwo->format.Format.nChannels == 2)
2440                 wwo->format.Format.nChannels = 1;
2441             else if (wwo->format.Format.nChannels == 1)
2442                 wwo->format.Format.nChannels = 2;
2443             /* recalculate block align and bytes per second */
2444             wwo->format.Format.nBlockAlign = (wwo->format.Format.wBitsPerSample * wwo->format.Format.nChannels) / 8;
2445             wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
2446             WARN("changed number of channels from %d to %d\n", lpDesc->lpFormat->nChannels, wwo->format.Format.nChannels);
2447         }
2448         EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels ), WAVERR_BADFORMAT, "unable to set required channels" );
2449     }
2450
2451     if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
2452         ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
2453         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
2454         format = (wwo->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
2455                  (wwo->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
2456                  (wwo->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
2457                  (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
2458     } else if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
2459         IsEqualGUID(&wwo->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
2460         format = (wwo->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
2461     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
2462         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
2463         retcode = WAVERR_BADFORMAT;
2464         goto errexit;
2465     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
2466         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
2467         retcode = WAVERR_BADFORMAT;
2468         goto errexit;
2469     } else if (wwo->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
2470         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
2471         retcode = WAVERR_BADFORMAT;
2472         goto errexit;
2473     } else {
2474         ERR("invalid format: %0x04x\n", wwo->format.Format.wFormatTag);
2475         retcode = WAVERR_BADFORMAT;
2476         goto errexit;
2477     }
2478
2479     if ((err = snd_pcm_hw_params_set_format(pcm, hw_params, format)) < 0) {
2480         WARN("unable to set required format: %s\n", snd_pcm_format_name(format));
2481         if (dwFlags & WAVE_DIRECTSOUND) {
2482             if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
2483                ((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
2484                IsEqualGUID(&wwo->format.SubFormat, & KSDATAFORMAT_SUBTYPE_PCM))) {
2485                 if (wwo->format.Format.wBitsPerSample != 16) {
2486                     wwo->format.Format.wBitsPerSample = 16;
2487                     format = SND_PCM_FORMAT_S16_LE;
2488                 } else {
2489                     wwo->format.Format.wBitsPerSample = 8;
2490                     format = SND_PCM_FORMAT_U8;
2491                 }
2492                 /* recalculate block align and bytes per second */
2493                 wwo->format.Format.nBlockAlign = (wwo->format.Format.wBitsPerSample * wwo->format.Format.nChannels) / 8;
2494                 wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
2495                 WARN("changed bits per sample from %d to %d\n", lpDesc->lpFormat->wBitsPerSample, wwo->format.Format.wBitsPerSample);
2496             }
2497         }
2498         EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format" );
2499     }
2500
2501     rate = wwo->format.Format.nSamplesPerSec;
2502     dir=0;
2503     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
2504     if (err < 0) {
2505         WARN("Rate %ld Hz not available for playback: %s\n", wwo->format.Format.nSamplesPerSec, snd_strerror(rate));
2506         retcode = WAVERR_BADFORMAT;
2507         goto errexit;
2508     }
2509     if (!NearMatch(rate, wwo->format.Format.nSamplesPerSec)) {
2510         if (dwFlags & WAVE_DIRECTSOUND) {
2511             WARN("changed sample rate from %ld Hz to %d Hz\n", wwo->format.Format.nSamplesPerSec, rate);
2512             wwo->format.Format.nSamplesPerSec = rate;
2513             /* recalculate bytes per second */
2514             wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
2515         } else {
2516             WARN("Rate doesn't match (requested %ld Hz, got %d Hz)\n", wwo->format.Format.nSamplesPerSec, rate);
2517             retcode = WAVERR_BADFORMAT;
2518             goto errexit;
2519         }
2520     }
2521
2522     /* give the new format back to direct sound */
2523     if (dwFlags & WAVE_DIRECTSOUND) {
2524         lpDesc->lpFormat->wFormatTag = wwo->format.Format.wFormatTag;
2525         lpDesc->lpFormat->nChannels = wwo->format.Format.nChannels;
2526         lpDesc->lpFormat->nSamplesPerSec = wwo->format.Format.nSamplesPerSec;
2527         lpDesc->lpFormat->wBitsPerSample = wwo->format.Format.wBitsPerSample;
2528         lpDesc->lpFormat->nBlockAlign = wwo->format.Format.nBlockAlign;
2529         lpDesc->lpFormat->nAvgBytesPerSec = wwo->format.Format.nAvgBytesPerSec;
2530     }
2531
2532     TRACE("Got this format: %ldx%dx%d %s\n",
2533           wwo->format.Format.nSamplesPerSec,
2534           wwo->format.Format.wBitsPerSample,
2535           wwo->format.Format.nChannels,
2536           getFormat(wwo->format.Format.wFormatTag));
2537
2538     dir=0;
2539     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
2540     dir=0;
2541     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
2542
2543     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
2544
2545     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
2546     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
2547
2548     snd_pcm_sw_params_current(pcm, sw_params);
2549     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");
2550     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
2551     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
2552     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
2553     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
2554     EXIT_ON_ERROR( snd_pcm_sw_params_set_xrun_mode(pcm, sw_params, SND_PCM_XRUN_NONE), MMSYSERR_ERROR, "unable to set xrun mode");
2555     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
2556 #undef EXIT_ON_ERROR
2557
2558     snd_pcm_prepare(pcm);
2559
2560     if (TRACE_ON(wave))
2561         ALSA_TraceParameters(hw_params, sw_params, FALSE);
2562
2563     /* now, we can save all required data for later use... */
2564
2565     wwo->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
2566     wwo->lpQueuePtr = wwo->lpPlayPtr = wwo->lpLoopPtr = NULL;
2567     wwo->dwPlayedTotal = wwo->dwWrittenTotal = 0;
2568     wwo->dwPartialOffset = 0;
2569
2570     ALSA_InitRingMessage(&wwo->msgRing);
2571
2572     if (!(dwFlags & WAVE_DIRECTSOUND)) {
2573         wwo->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
2574         wwo->hThread = CreateThread(NULL, 0, wodPlayer, (LPVOID)(DWORD)wDevID, 0, &(wwo->dwThreadID));
2575         if (wwo->hThread)
2576             SetThreadPriority(wwo->hThread, THREAD_PRIORITY_TIME_CRITICAL);
2577         else
2578         {
2579             ERR("Thread creation for the wodPlayer failed!\n");
2580             CloseHandle(wwo->hStartUpEvent);
2581             retcode = MMSYSERR_NOMEM;
2582             goto errexit;
2583         }
2584         WaitForSingleObject(wwo->hStartUpEvent, INFINITE);
2585         CloseHandle(wwo->hStartUpEvent);
2586     } else {
2587         wwo->hThread = INVALID_HANDLE_VALUE;
2588         wwo->dwThreadID = 0;
2589     }
2590     wwo->hStartUpEvent = INVALID_HANDLE_VALUE;
2591
2592     TRACE("handle=%p\n", pcm);
2593     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%lu, nSamplesPerSec=%lu, nChannels=%u nBlockAlign=%u!\n",
2594           wwo->format.Format.wBitsPerSample, wwo->format.Format.nAvgBytesPerSec,
2595           wwo->format.Format.nSamplesPerSec, wwo->format.Format.nChannels,
2596           wwo->format.Format.nBlockAlign);
2597
2598     wwo->pcm = pcm;
2599     wwo->hctl = hctl;
2600     if ( wwo->hw_params )
2601         snd_pcm_hw_params_free(wwo->hw_params);
2602     wwo->hw_params = hw_params;
2603
2604
2605     return wodNotifyClient(wwo, WOM_OPEN, 0L, 0L);
2606
2607 errexit:
2608     if (pcm)
2609         snd_pcm_close(pcm);
2610
2611     if (hctl)
2612     {
2613         snd_hctl_free(hctl);
2614         snd_hctl_close(hctl);
2615     }
2616
2617     if ( hw_params )
2618         snd_pcm_hw_params_free(hw_params);
2619
2620     if (wwo->msgRing.ring_buffer_size > 0)
2621         ALSA_DestroyRingMessage(&wwo->msgRing);
2622
2623     return retcode;
2624 }
2625
2626
2627 /**************************************************************************
2628  *                              wodClose                        [internal]
2629  */
2630 static DWORD wodClose(WORD wDevID)
2631 {
2632     DWORD               ret = MMSYSERR_NOERROR;
2633     WINE_WAVEDEV*       wwo;
2634
2635     TRACE("(%u);\n", wDevID);
2636
2637     if (wDevID >= ALSA_WodNumDevs) {
2638         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2639         return MMSYSERR_BADDEVICEID;
2640     }
2641
2642     if (WOutDev[wDevID].pcm == NULL) {
2643         WARN("Requested to close already closed device %d!\n", wDevID);
2644         return MMSYSERR_BADDEVICEID;
2645     }
2646
2647     wwo = &WOutDev[wDevID];
2648     if (wwo->lpQueuePtr) {
2649         WARN("buffers still playing !\n");
2650         ret = WAVERR_STILLPLAYING;
2651     } else {
2652         if (wwo->hThread != INVALID_HANDLE_VALUE) {
2653             ALSA_AddRingMessage(&wwo->msgRing, WINE_WM_CLOSING, 0, TRUE);
2654         }
2655         ALSA_DestroyRingMessage(&wwo->msgRing);
2656
2657         if (wwo->hw_params)
2658             snd_pcm_hw_params_free(wwo->hw_params);
2659         wwo->hw_params = NULL;
2660
2661         if (wwo->pcm)
2662             snd_pcm_close(wwo->pcm);
2663         wwo->pcm = NULL;
2664
2665         if (wwo->hctl)
2666         {
2667             snd_hctl_free(wwo->hctl);
2668             snd_hctl_close(wwo->hctl);
2669         }
2670         wwo->hctl = NULL;
2671
2672         ret = wodNotifyClient(wwo, WOM_CLOSE, 0L, 0L);
2673     }
2674
2675     return ret;
2676 }
2677
2678
2679 /**************************************************************************
2680  *                              wodWrite                        [internal]
2681  *
2682  */
2683 static DWORD wodWrite(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
2684 {
2685     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
2686
2687     if (wDevID >= ALSA_WodNumDevs) {
2688         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2689         return MMSYSERR_BADDEVICEID;
2690     }
2691
2692     if (WOutDev[wDevID].pcm == NULL) {
2693         WARN("Requested to write to closed device %d!\n", wDevID);
2694         return MMSYSERR_BADDEVICEID;
2695     }
2696
2697     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
2698         return WAVERR_UNPREPARED;
2699
2700     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
2701         return WAVERR_STILLPLAYING;
2702
2703     lpWaveHdr->dwFlags &= ~WHDR_DONE;
2704     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
2705     lpWaveHdr->lpNext = 0;
2706
2707     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
2708
2709     return MMSYSERR_NOERROR;
2710 }
2711
2712 /**************************************************************************
2713  *                      wodPause                                [internal]
2714  */
2715 static DWORD wodPause(WORD wDevID)
2716 {
2717     TRACE("(%u);!\n", wDevID);
2718
2719     if (wDevID >= ALSA_WodNumDevs) {
2720         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2721         return MMSYSERR_BADDEVICEID;
2722     }
2723
2724     if (WOutDev[wDevID].pcm == NULL) {
2725         WARN("Requested to pause closed device %d!\n", wDevID);
2726         return MMSYSERR_BADDEVICEID;
2727     }
2728
2729     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_PAUSING, 0, TRUE);
2730
2731     return MMSYSERR_NOERROR;
2732 }
2733
2734 /**************************************************************************
2735  *                      wodRestart                              [internal]
2736  */
2737 static DWORD wodRestart(WORD wDevID)
2738 {
2739     TRACE("(%u);\n", wDevID);
2740
2741     if (wDevID >= ALSA_WodNumDevs) {
2742         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2743         return MMSYSERR_BADDEVICEID;
2744     }
2745
2746     if (WOutDev[wDevID].pcm == NULL) {
2747         WARN("Requested to restart closed device %d!\n", wDevID);
2748         return MMSYSERR_BADDEVICEID;
2749     }
2750
2751     if (WOutDev[wDevID].state == WINE_WS_PAUSED) {
2752         ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESTARTING, 0, TRUE);
2753     }
2754
2755     /* FIXME: is NotifyClient with WOM_DONE right ? (Comet Busters 1.3.3 needs this notification) */
2756     /* FIXME: Myst crashes with this ... hmm -MM
2757        return wodNotifyClient(wwo, WOM_DONE, 0L, 0L);
2758     */
2759
2760     return MMSYSERR_NOERROR;
2761 }
2762
2763 /**************************************************************************
2764  *                      wodReset                                [internal]
2765  */
2766 static DWORD wodReset(WORD wDevID)
2767 {
2768     TRACE("(%u);\n", wDevID);
2769
2770     if (wDevID >= ALSA_WodNumDevs) {
2771         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2772         return MMSYSERR_BADDEVICEID;
2773     }
2774
2775     if (WOutDev[wDevID].pcm == NULL) {
2776         WARN("Requested to reset closed device %d!\n", wDevID);
2777         return MMSYSERR_BADDEVICEID;
2778     }
2779
2780     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
2781
2782     return MMSYSERR_NOERROR;
2783 }
2784
2785 /**************************************************************************
2786  *                              wodGetPosition                  [internal]
2787  */
2788 static DWORD wodGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
2789 {
2790     WINE_WAVEDEV*       wwo;
2791
2792     TRACE("(%u, %p, %lu);\n", wDevID, lpTime, uSize);
2793
2794     if (wDevID >= ALSA_WodNumDevs) {
2795         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2796         return MMSYSERR_BADDEVICEID;
2797     }
2798
2799     if (WOutDev[wDevID].pcm == NULL) {
2800         WARN("Requested to get position of closed device %d!\n", wDevID);
2801         return MMSYSERR_BADDEVICEID;
2802     }
2803
2804     if (lpTime == NULL) return MMSYSERR_INVALPARAM;
2805
2806     wwo = &WOutDev[wDevID];
2807     ALSA_AddRingMessage(&wwo->msgRing, WINE_WM_UPDATE, 0, TRUE);
2808
2809     return bytes_to_mmtime(lpTime, wwo->dwPlayedTotal, &wwo->format);
2810 }
2811
2812 /**************************************************************************
2813  *                              wodBreakLoop                    [internal]
2814  */
2815 static DWORD wodBreakLoop(WORD wDevID)
2816 {
2817     TRACE("(%u);\n", wDevID);
2818
2819     if (wDevID >= ALSA_WodNumDevs) {
2820         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2821         return MMSYSERR_BADDEVICEID;
2822     }
2823
2824     if (WOutDev[wDevID].pcm == NULL) {
2825         WARN("Requested to breakloop of closed device %d!\n", wDevID);
2826         return MMSYSERR_BADDEVICEID;
2827     }
2828
2829     ALSA_AddRingMessage(&WOutDev[wDevID].msgRing, WINE_WM_BREAKLOOP, 0, TRUE);
2830     return MMSYSERR_NOERROR;
2831 }
2832
2833 /**************************************************************************
2834  *                              wodGetVolume                    [internal]
2835  */
2836 static DWORD wodGetVolume(WORD wDevID, LPDWORD lpdwVol)
2837 {
2838     WORD               wleft, wright;
2839     WINE_WAVEDEV*      wwo;
2840     int                min, max;
2841     int                left, right;
2842     DWORD              rc;
2843
2844     TRACE("(%u, %p);\n", wDevID, lpdwVol);
2845     if (wDevID >= ALSA_WodNumDevs) {
2846         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2847         return MMSYSERR_BADDEVICEID;
2848     }
2849
2850     if (lpdwVol == NULL)
2851         return MMSYSERR_NOTENABLED;
2852
2853     wwo = &WOutDev[wDevID];
2854
2855     if (lpdwVol == NULL)
2856         return MMSYSERR_NOTENABLED;
2857
2858     rc = ALSA_CheckSetVolume(wwo->hctl, &left, &right, &min, &max, NULL, NULL, NULL);
2859     if (rc == MMSYSERR_NOERROR)
2860     {
2861 #define VOLUME_ALSA_TO_WIN(x) (  ( (((x)-min) * 65535) + (max-min)/2 ) /(max-min))
2862         wleft = VOLUME_ALSA_TO_WIN(left);
2863         wright = VOLUME_ALSA_TO_WIN(right);
2864 #undef VOLUME_ALSA_TO_WIN
2865         TRACE("left=%d,right=%d,converted to windows left %d, right %d\n", left, right, wleft, wright);
2866         *lpdwVol = MAKELONG( wleft, wright );
2867     }
2868     else
2869         TRACE("CheckSetVolume failed; rc %ld\n", rc);
2870
2871     return rc;
2872 }
2873
2874 /**************************************************************************
2875  *                              wodSetVolume                    [internal]
2876  */
2877 static DWORD wodSetVolume(WORD wDevID, DWORD dwParam)
2878 {
2879     WORD               wleft, wright;
2880     WINE_WAVEDEV*      wwo;
2881     int                min, max;
2882     int                left, right;
2883     DWORD              rc;
2884
2885     TRACE("(%u, %08lX);\n", wDevID, dwParam);
2886     if (wDevID >= ALSA_WodNumDevs) {
2887         TRACE("Asked for device %d, but only %ld known!\n", wDevID, ALSA_WodNumDevs);
2888         return MMSYSERR_BADDEVICEID;
2889     }
2890
2891     wwo = &WOutDev[wDevID];
2892
2893     rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, &min, &max, NULL, NULL, NULL);
2894     if (rc == MMSYSERR_NOERROR)
2895     {
2896         wleft  = LOWORD(dwParam);
2897         wright = HIWORD(dwParam);
2898 #define VOLUME_WIN_TO_ALSA(x) ( (  ( ((x) * (max-min)) + 32767) / 65535) + min )
2899         left = VOLUME_WIN_TO_ALSA(wleft);
2900         right = VOLUME_WIN_TO_ALSA(wright);
2901 #undef VOLUME_WIN_TO_ALSA
2902         rc = ALSA_CheckSetVolume(wwo->hctl, NULL, NULL, NULL, NULL, NULL, &left, &right);
2903         if (rc == MMSYSERR_NOERROR)
2904             TRACE("set volume:  wleft=%d, wright=%d, converted to alsa left %d, right %d\n", wleft, wright, left, right);
2905         else
2906             TRACE("SetVolume failed; rc %ld\n", rc);
2907     }
2908
2909     return rc;
2910 }
2911
2912 /**************************************************************************
2913  *                              wodGetNumDevs                   [internal]
2914  */
2915 static  DWORD   wodGetNumDevs(void)
2916 {
2917     return ALSA_WodNumDevs;
2918 }
2919
2920 /**************************************************************************
2921  *                              wodDevInterfaceSize             [internal]
2922  */
2923 static DWORD wodDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
2924 {
2925     TRACE("(%u, %p)\n", wDevID, dwParam1);
2926
2927     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
2928                                     NULL, 0 ) * sizeof(WCHAR);
2929     return MMSYSERR_NOERROR;
2930 }
2931
2932 /**************************************************************************
2933  *                              wodDevInterface                 [internal]
2934  */
2935 static DWORD wodDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
2936 {
2937     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
2938                                         NULL, 0 ) * sizeof(WCHAR))
2939     {
2940         MultiByteToWideChar(CP_ACP, 0, WOutDev[wDevID].interface_name, -1,
2941                             dwParam1, dwParam2 / sizeof(WCHAR));
2942         return MMSYSERR_NOERROR;
2943     }
2944     return MMSYSERR_INVALPARAM;
2945 }
2946
2947 /**************************************************************************
2948  *                              wodMessage (WINEALSA.@)
2949  */
2950 DWORD WINAPI ALSA_wodMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
2951                              DWORD dwParam1, DWORD dwParam2)
2952 {
2953     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
2954           wDevID, getMessage(wMsg), dwUser, dwParam1, dwParam2);
2955
2956     switch (wMsg) {
2957     case DRVM_INIT:
2958     case DRVM_EXIT:
2959     case DRVM_ENABLE:
2960     case DRVM_DISABLE:
2961         /* FIXME: Pretend this is supported */
2962         return 0;
2963     case WODM_OPEN:             return wodOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
2964     case WODM_CLOSE:            return wodClose         (wDevID);
2965     case WODM_GETDEVCAPS:       return wodGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
2966     case WODM_GETNUMDEVS:       return wodGetNumDevs    ();
2967     case WODM_GETPITCH:         return MMSYSERR_NOTSUPPORTED;
2968     case WODM_SETPITCH:         return MMSYSERR_NOTSUPPORTED;
2969     case WODM_GETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
2970     case WODM_SETPLAYBACKRATE:  return MMSYSERR_NOTSUPPORTED;
2971     case WODM_WRITE:            return wodWrite         (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
2972     case WODM_PAUSE:            return wodPause         (wDevID);
2973     case WODM_GETPOS:           return wodGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
2974     case WODM_BREAKLOOP:        return wodBreakLoop     (wDevID);
2975     case WODM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
2976     case WODM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
2977     case WODM_GETVOLUME:        return wodGetVolume     (wDevID, (LPDWORD)dwParam1);
2978     case WODM_SETVOLUME:        return wodSetVolume     (wDevID, dwParam1);
2979     case WODM_RESTART:          return wodRestart       (wDevID);
2980     case WODM_RESET:            return wodReset         (wDevID);
2981     case DRV_QUERYDEVICEINTERFACESIZE: return wodDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
2982     case DRV_QUERYDEVICEINTERFACE:     return wodDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
2983     case DRV_QUERYDSOUNDIFACE:  return wodDsCreate      (wDevID, (PIDSDRIVER*)dwParam1);
2984     case DRV_QUERYDSOUNDDESC:   return wodDsDesc        (wDevID, (PDSDRIVERDESC)dwParam1);
2985
2986     default:
2987         FIXME("unknown message %d!\n", wMsg);
2988     }
2989     return MMSYSERR_NOTSUPPORTED;
2990 }
2991
2992 /*======================================================================*
2993  *                  Low level DSOUND implementation                     *
2994  *======================================================================*/
2995
2996 typedef struct IDsDriverImpl IDsDriverImpl;
2997 typedef struct IDsDriverBufferImpl IDsDriverBufferImpl;
2998
2999 struct IDsDriverImpl
3000 {
3001     /* IUnknown fields */
3002     const IDsDriverVtbl *lpVtbl;
3003     LONG                ref;
3004     /* IDsDriverImpl fields */
3005     UINT                wDevID;
3006     IDsDriverBufferImpl*primary;
3007 };
3008
3009 struct IDsDriverBufferImpl
3010 {
3011     /* IUnknown fields */
3012     const IDsDriverBufferVtbl *lpVtbl;
3013     LONG                      ref;
3014     /* IDsDriverBufferImpl fields */
3015     IDsDriverImpl*            drv;
3016
3017     CRITICAL_SECTION          mmap_crst;
3018     LPVOID                    mmap_buffer;
3019     DWORD                     mmap_buflen_bytes;
3020     snd_pcm_uframes_t         mmap_buflen_frames;
3021     snd_pcm_channel_area_t *  mmap_areas;
3022     snd_async_handler_t *     mmap_async_handler;
3023     snd_pcm_uframes_t         mmap_ppos; /* play position */
3024
3025     /* Do we have a direct hardware buffer - SND_PCM_TYPE_HW? */
3026     int                       mmap_mode;
3027 };
3028
3029 static void DSDB_CheckXRUN(IDsDriverBufferImpl* pdbi)
3030 {
3031     WINE_WAVEDEV *     wwo = &(WOutDev[pdbi->drv->wDevID]);
3032     snd_pcm_state_t    state = snd_pcm_state(wwo->pcm);
3033
3034     if ( state == SND_PCM_STATE_XRUN )
3035     {
3036         int            err = snd_pcm_prepare(wwo->pcm);
3037         TRACE("xrun occurred\n");
3038         if ( err < 0 )
3039             ERR("recovery from xrun failed, prepare failed: %s\n", snd_strerror(err));
3040     }
3041     else if ( state == SND_PCM_STATE_SUSPENDED )
3042     {
3043         int            err = snd_pcm_resume(wwo->pcm);
3044         TRACE("recovery from suspension occurred\n");
3045         if (err < 0 && err != -EAGAIN){
3046             err = snd_pcm_prepare(wwo->pcm);
3047             if (err < 0)
3048                 ERR("recovery from suspend failed, prepare failed: %s\n", snd_strerror(err));
3049         }
3050     }
3051 }
3052
3053 static void DSDB_MMAPCopy(IDsDriverBufferImpl* pdbi, int mul)
3054 {
3055     WINE_WAVEDEV *     wwo = &(WOutDev[pdbi->drv->wDevID]);
3056     snd_pcm_uframes_t  period_size;
3057     snd_pcm_sframes_t  avail;
3058     int err;
3059     int dir=0;
3060
3061     const snd_pcm_channel_area_t *areas;
3062     snd_pcm_uframes_t     ofs;
3063     snd_pcm_uframes_t     frames;
3064     snd_pcm_uframes_t     wanted;
3065
3066     if ( !pdbi->mmap_buffer || !wwo->hw_params || !wwo->pcm)
3067         return;
3068
3069     err = snd_pcm_hw_params_get_period_size(wwo->hw_params, &period_size, &dir);
3070     avail = snd_pcm_avail_update(wwo->pcm);
3071
3072     DSDB_CheckXRUN(pdbi);
3073
3074     TRACE("avail=%d, mul=%d\n", (int)avail, mul);
3075
3076     frames = pdbi->mmap_buflen_frames;
3077
3078     EnterCriticalSection(&pdbi->mmap_crst);
3079
3080     /* we want to commit the given number of periods, or the whole lot */
3081     wanted = mul == 0 ? frames : period_size * 2;
3082
3083     snd_pcm_mmap_begin(wwo->pcm, &areas, &ofs, &frames);
3084     if (areas != pdbi->mmap_areas || areas->addr != pdbi->mmap_areas->addr)
3085         FIXME("Can't access sound driver's buffer directly.\n");
3086
3087     /* mark our current play position */
3088     pdbi->mmap_ppos = ofs;
3089
3090     if (frames > wanted)
3091         frames = wanted;
3092
3093     err = snd_pcm_mmap_commit(wwo->pcm, ofs, frames);
3094
3095     /* Check to make sure we committed all we want to commit. ALSA
3096      * only gives a contiguous linear region, so we need to check this
3097      * in case we've reached the end of the buffer, in which case we
3098      * can wrap around back to the beginning. */
3099     if (frames < wanted) {
3100         frames = wanted -= frames;
3101         snd_pcm_mmap_begin(wwo->pcm, &areas, &ofs, &frames);
3102         snd_pcm_mmap_commit(wwo->pcm, ofs, frames);
3103     }
3104
3105     LeaveCriticalSection(&pdbi->mmap_crst);
3106 }
3107
3108 static void DSDB_PCMCallback(snd_async_handler_t *ahandler)
3109 {
3110     int periods;
3111     /* snd_pcm_t *               handle = snd_async_handler_get_pcm(ahandler); */
3112     IDsDriverBufferImpl*      pdbi = snd_async_handler_get_callback_private(ahandler);
3113     TRACE("callback called\n");
3114
3115     /* Commit another block (the entire buffer if it's a direct hw buffer) */
3116     periods = pdbi->mmap_mode == SND_PCM_TYPE_HW ? 0 : 1;
3117     DSDB_MMAPCopy(pdbi, periods);
3118 }
3119
3120 /**
3121  * Allocate the memory-mapped buffer for direct sound, and set up the
3122  * callback.
3123  */
3124 static int DSDB_CreateMMAP(IDsDriverBufferImpl* pdbi)
3125 {
3126     WINE_WAVEDEV *            wwo = &(WOutDev[pdbi->drv->wDevID]);
3127     snd_pcm_format_t          format;
3128     snd_pcm_uframes_t         frames;
3129     snd_pcm_uframes_t         ofs;
3130     snd_pcm_uframes_t         avail;
3131     unsigned int              channels;
3132     unsigned int              bits_per_sample;
3133     unsigned int              bits_per_frame;
3134     int                       err;
3135
3136     err = snd_pcm_hw_params_get_format(wwo->hw_params, &format);
3137     err = snd_pcm_hw_params_get_buffer_size(wwo->hw_params, &frames);
3138     err = snd_pcm_hw_params_get_channels(wwo->hw_params, &channels);
3139     bits_per_sample = snd_pcm_format_physical_width(format);
3140     bits_per_frame = bits_per_sample * channels;
3141     pdbi->mmap_mode = snd_pcm_type(wwo->pcm);
3142
3143     if (pdbi->mmap_mode == SND_PCM_TYPE_HW) {
3144         TRACE("mmap'd buffer is a hardware buffer.\n");
3145     }
3146     else {
3147         TRACE("mmap'd buffer is an ALSA emulation of hardware buffer.\n");
3148     }
3149
3150     if (TRACE_ON(wave))
3151         ALSA_TraceParameters(wwo->hw_params, NULL, FALSE);
3152
3153     TRACE("format=%s  frames=%ld  channels=%d  bits_per_sample=%d  bits_per_frame=%d\n",
3154           snd_pcm_format_name(format), frames, channels, bits_per_sample, bits_per_frame);
3155
3156     pdbi->mmap_buflen_frames = frames;
3157     pdbi->mmap_buflen_bytes = snd_pcm_frames_to_bytes( wwo->pcm, frames );
3158
3159     avail = snd_pcm_avail_update(wwo->pcm);
3160     if (avail < 0)
3161     {
3162         ERR("No buffer is available: %s.", snd_strerror(avail));
3163         return DSERR_GENERIC;
3164     }
3165     err = snd_pcm_mmap_begin(wwo->pcm, (const snd_pcm_channel_area_t **)&pdbi->mmap_areas, &ofs, &avail);
3166     if ( err < 0 )
3167     {
3168         ERR("Can't map sound device for direct access: %s\n", snd_strerror(err));
3169         return DSERR_GENERIC;
3170     }
3171     avail = 0;/* We don't have any data to commit yet */
3172     err = snd_pcm_mmap_commit(wwo->pcm, ofs, avail);
3173     if (ofs > 0)
3174         err = snd_pcm_rewind(wwo->pcm, ofs);
3175     pdbi->mmap_buffer = pdbi->mmap_areas->addr;
3176
3177     snd_pcm_format_set_silence(format, pdbi->mmap_buffer, frames );
3178
3179     TRACE("created mmap buffer of %ld frames (%ld bytes) at %p\n",
3180         frames, pdbi->mmap_buflen_bytes, pdbi->mmap_buffer);
3181
3182     InitializeCriticalSection(&pdbi->mmap_crst);
3183     pdbi->mmap_crst.DebugInfo->Spare[0] = (DWORD_PTR)"WINEALSA_mmap_crst";
3184
3185     err = snd_async_add_pcm_handler(&pdbi->mmap_async_handler, wwo->pcm, DSDB_PCMCallback, pdbi);
3186     if ( err < 0 )
3187     {
3188         ERR("add_pcm_handler failed. reason: %s\n", snd_strerror(err));
3189         return DSERR_GENERIC;
3190     }
3191
3192     return DS_OK;
3193 }
3194
3195 static void DSDB_DestroyMMAP(IDsDriverBufferImpl* pdbi)
3196 {
3197     TRACE("mmap buffer %p destroyed\n", pdbi->mmap_buffer);
3198     pdbi->mmap_areas = NULL;
3199     pdbi->mmap_buffer = NULL;
3200     pdbi->mmap_crst.DebugInfo->Spare[0] = 0;
3201     DeleteCriticalSection(&pdbi->mmap_crst);
3202 }
3203
3204
3205 static HRESULT WINAPI IDsDriverBufferImpl_QueryInterface(PIDSDRIVERBUFFER iface, REFIID riid, LPVOID *ppobj)
3206 {
3207     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3208     FIXME("(): stub!\n");
3209     return DSERR_UNSUPPORTED;
3210 }
3211
3212 static ULONG WINAPI IDsDriverBufferImpl_AddRef(PIDSDRIVERBUFFER iface)
3213 {
3214     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3215     ULONG refCount = InterlockedIncrement(&This->ref);
3216
3217     TRACE("(%p)->(ref before=%lu)\n",This, refCount - 1);
3218
3219     return refCount;
3220 }
3221
3222 static ULONG WINAPI IDsDriverBufferImpl_Release(PIDSDRIVERBUFFER iface)
3223 {
3224     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3225     ULONG refCount = InterlockedDecrement(&This->ref);
3226
3227     TRACE("(%p)->(ref before=%lu)\n",This, refCount + 1);
3228
3229     if (refCount)
3230         return refCount;
3231     if (This == This->drv->primary)
3232         This->drv->primary = NULL;
3233     DSDB_DestroyMMAP(This);
3234     HeapFree(GetProcessHeap(), 0, This);
3235     return 0;
3236 }
3237
3238 static HRESULT WINAPI IDsDriverBufferImpl_Lock(PIDSDRIVERBUFFER iface,
3239                                                LPVOID*ppvAudio1,LPDWORD pdwLen1,
3240                                                LPVOID*ppvAudio2,LPDWORD pdwLen2,
3241                                                DWORD dwWritePosition,DWORD dwWriteLen,
3242                                                DWORD dwFlags)
3243 {
3244     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3245     TRACE("(%p)\n",iface);
3246     return DSERR_UNSUPPORTED;
3247 }
3248
3249 static HRESULT WINAPI IDsDriverBufferImpl_Unlock(PIDSDRIVERBUFFER iface,
3250                                                  LPVOID pvAudio1,DWORD dwLen1,
3251                                                  LPVOID pvAudio2,DWORD dwLen2)
3252 {
3253     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3254     TRACE("(%p)\n",iface);
3255     return DSERR_UNSUPPORTED;
3256 }
3257
3258 static HRESULT WINAPI IDsDriverBufferImpl_SetFormat(PIDSDRIVERBUFFER iface,
3259                                                     LPWAVEFORMATEX pwfx)
3260 {
3261     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3262     TRACE("(%p,%p)\n",iface,pwfx);
3263     return DSERR_BUFFERLOST;
3264 }
3265
3266 static HRESULT WINAPI IDsDriverBufferImpl_SetFrequency(PIDSDRIVERBUFFER iface, DWORD dwFreq)
3267 {
3268     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
3269     TRACE("(%p,%ld): stub\n",iface,dwFreq);
3270     return DSERR_UNSUPPORTED;
3271 }
3272
3273 static HRESULT WINAPI IDsDriverBufferImpl_SetVolumePan(PIDSDRIVERBUFFER iface, PDSVOLUMEPAN pVolPan)
3274 {
3275     DWORD vol;
3276     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3277     TRACE("(%p,%p)\n",iface,pVolPan);
3278     vol = pVolPan->dwTotalLeftAmpFactor | (pVolPan->dwTotalRightAmpFactor << 16);
3279
3280     if (wodSetVolume(This->drv->wDevID, vol) != MMSYSERR_NOERROR) {
3281         WARN("wodSetVolume failed\n");
3282         return DSERR_INVALIDPARAM;
3283     }
3284
3285     return DS_OK;
3286 }
3287
3288 static HRESULT WINAPI IDsDriverBufferImpl_SetPosition(PIDSDRIVERBUFFER iface, DWORD dwNewPos)
3289 {
3290     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3291     TRACE("(%p,%ld): stub\n",iface,dwNewPos);
3292     return DSERR_UNSUPPORTED;
3293 }
3294
3295 static HRESULT WINAPI IDsDriverBufferImpl_GetPosition(PIDSDRIVERBUFFER iface,
3296                                                       LPDWORD lpdwPlay, LPDWORD lpdwWrite)
3297 {
3298     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3299     WINE_WAVEDEV *      wwo = &(WOutDev[This->drv->wDevID]);
3300     snd_pcm_uframes_t   hw_ptr;
3301     snd_pcm_uframes_t   period_size;
3302     snd_pcm_state_t     state;
3303     int dir;
3304     int err;
3305
3306     if (wwo->hw_params == NULL) return DSERR_GENERIC;
3307
3308     dir=0;
3309     err = snd_pcm_hw_params_get_period_size(wwo->hw_params, &period_size, &dir);
3310
3311     if (wwo->pcm == NULL) return DSERR_GENERIC;
3312     /** we need to track down buffer underruns */
3313     DSDB_CheckXRUN(This);
3314
3315     EnterCriticalSection(&This->mmap_crst);
3316     hw_ptr = This->mmap_ppos;
3317
3318     state = snd_pcm_state(wwo->pcm);
3319     if (state != SND_PCM_STATE_RUNNING)
3320       hw_ptr = 0;
3321
3322     if (lpdwPlay)
3323         *lpdwPlay = snd_pcm_frames_to_bytes(wwo->pcm, hw_ptr) % This->mmap_buflen_bytes;
3324     if (lpdwWrite)
3325         *lpdwWrite = snd_pcm_frames_to_bytes(wwo->pcm, hw_ptr + period_size * 2) % This->mmap_buflen_bytes;
3326     LeaveCriticalSection(&This->mmap_crst);
3327
3328     TRACE("hw_ptr=0x%08x, playpos=%ld, writepos=%ld\n", (unsigned int)hw_ptr, lpdwPlay?*lpdwPlay:-1, lpdwWrite?*lpdwWrite:-1);
3329     return DS_OK;
3330 }
3331
3332 static HRESULT WINAPI IDsDriverBufferImpl_Play(PIDSDRIVERBUFFER iface, DWORD dwRes1, DWORD dwRes2, DWORD dwFlags)
3333 {
3334     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3335     WINE_WAVEDEV *       wwo = &(WOutDev[This->drv->wDevID]);
3336     snd_pcm_state_t      state;
3337     int                  err;
3338
3339     TRACE("(%p,%lx,%lx,%lx)\n",iface,dwRes1,dwRes2,dwFlags);
3340
3341     if (wwo->pcm == NULL) return DSERR_GENERIC;
3342
3343     state = snd_pcm_state(wwo->pcm);
3344     if ( state == SND_PCM_STATE_SETUP )
3345     {
3346         err = snd_pcm_prepare(wwo->pcm);
3347         state = snd_pcm_state(wwo->pcm);
3348     }
3349     if ( state == SND_PCM_STATE_PREPARED )
3350     {
3351         /* If we have a direct hardware buffer, we can commit the whole lot
3352          * immediately (periods = 0), otherwise we prime the queue with only
3353          * 2 periods.
3354          *
3355          * Why 2? We want a small number so that we don't get ahead of the
3356          * DirectSound mixer. But we don't want to ever let the buffer get
3357          * completely empty - having 2 periods gives us time to commit another
3358          * period when the first expires.
3359          *
3360          * The potential for buffer underrun is high, but that's the reality
3361          * of using a translated buffer (the whole point of DirectSound is
3362          * to provide direct access to the hardware).
3363          *
3364          * A better implementation would use the buffer Lock() and Unlock()
3365          * methods to determine how far ahead we can commit, and to rewind if
3366          * necessary.
3367          */
3368         int periods = This->mmap_mode == SND_PCM_TYPE_HW ? 0 : 2;
3369
3370         DSDB_MMAPCopy(This, periods);
3371         err = snd_pcm_start(wwo->pcm);
3372     }
3373     return DS_OK;
3374 }
3375
3376 static HRESULT WINAPI IDsDriverBufferImpl_Stop(PIDSDRIVERBUFFER iface)
3377 {
3378     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
3379     WINE_WAVEDEV *    wwo = &(WOutDev[This->drv->wDevID]);
3380     int               err;
3381     DWORD             play;
3382     DWORD             write;
3383
3384     TRACE("(%p)\n",iface);
3385
3386     if (wwo->pcm == NULL) return DSERR_GENERIC;
3387
3388     /* ring buffer wrap up detection */
3389     IDsDriverBufferImpl_GetPosition(iface, &play, &write);
3390     if ( play > write)
3391     {
3392         TRACE("writepos wrapper up\n");
3393         return DS_OK;
3394     }
3395
3396     if ( ( err = snd_pcm_drop(wwo->pcm)) < 0 )
3397     {
3398         ERR("error while stopping pcm: %s\n", snd_strerror(err));
3399         return DSERR_GENERIC;
3400     }
3401     return DS_OK;
3402 }
3403
3404 static const IDsDriverBufferVtbl dsdbvt =
3405 {
3406     IDsDriverBufferImpl_QueryInterface,
3407     IDsDriverBufferImpl_AddRef,
3408     IDsDriverBufferImpl_Release,
3409     IDsDriverBufferImpl_Lock,
3410     IDsDriverBufferImpl_Unlock,
3411     IDsDriverBufferImpl_SetFormat,
3412     IDsDriverBufferImpl_SetFrequency,
3413     IDsDriverBufferImpl_SetVolumePan,
3414     IDsDriverBufferImpl_SetPosition,
3415     IDsDriverBufferImpl_GetPosition,
3416     IDsDriverBufferImpl_Play,
3417     IDsDriverBufferImpl_Stop
3418 };
3419
3420 static HRESULT WINAPI IDsDriverImpl_QueryInterface(PIDSDRIVER iface, REFIID riid, LPVOID *ppobj)
3421 {
3422     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3423     FIXME("(%p): stub!\n",iface);
3424     return DSERR_UNSUPPORTED;
3425 }
3426
3427 static ULONG WINAPI IDsDriverImpl_AddRef(PIDSDRIVER iface)
3428 {
3429     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3430     ULONG refCount = InterlockedIncrement(&This->ref);
3431
3432     TRACE("(%p)->(ref before=%lu)\n",This, refCount - 1);
3433
3434     return refCount;
3435 }
3436
3437 static ULONG WINAPI IDsDriverImpl_Release(PIDSDRIVER iface)
3438 {
3439     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3440     ULONG refCount = InterlockedDecrement(&This->ref);
3441
3442     TRACE("(%p)->(ref before=%lu)\n",This, refCount + 1);
3443
3444     if (refCount)
3445         return refCount;
3446     HeapFree(GetProcessHeap(),0,This);
3447     return 0;
3448 }
3449
3450 static HRESULT WINAPI IDsDriverImpl_GetDriverDesc(PIDSDRIVER iface, PDSDRIVERDESC pDesc)
3451 {
3452     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3453     TRACE("(%p,%p)\n",iface,pDesc);
3454     memcpy(pDesc, &(WOutDev[This->wDevID].ds_desc), sizeof(DSDRIVERDESC));
3455     pDesc->dwFlags = DSDDESC_DOMMSYSTEMOPEN | DSDDESC_DOMMSYSTEMSETFORMAT |
3456         DSDDESC_USESYSTEMMEMORY | DSDDESC_DONTNEEDPRIMARYLOCK;
3457     pDesc->dnDevNode            = WOutDev[This->wDevID].waveDesc.dnDevNode;
3458     pDesc->wVxdId               = 0;
3459     pDesc->wReserved            = 0;
3460     pDesc->ulDeviceNum          = This->wDevID;
3461     pDesc->dwHeapType           = DSDHEAP_NOHEAP;
3462     pDesc->pvDirectDrawHeap     = NULL;
3463     pDesc->dwMemStartAddress    = 0;
3464     pDesc->dwMemEndAddress      = 0;
3465     pDesc->dwMemAllocExtra      = 0;
3466     pDesc->pvReserved1          = NULL;
3467     pDesc->pvReserved2          = NULL;
3468     return DS_OK;
3469 }
3470
3471 static HRESULT WINAPI IDsDriverImpl_Open(PIDSDRIVER iface)
3472 {
3473     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3474     TRACE("(%p)\n",iface);
3475     return DS_OK;
3476 }
3477
3478 static HRESULT WINAPI IDsDriverImpl_Close(PIDSDRIVER iface)
3479 {
3480     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3481     TRACE("(%p)\n",iface);
3482     return DS_OK;
3483 }
3484
3485 static HRESULT WINAPI IDsDriverImpl_GetCaps(PIDSDRIVER iface, PDSDRIVERCAPS pCaps)
3486 {
3487     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3488     TRACE("(%p,%p)\n",iface,pCaps);
3489     memcpy(pCaps, &(WOutDev[This->wDevID].ds_caps), sizeof(DSDRIVERCAPS));
3490     return DS_OK;
3491 }
3492
3493 static HRESULT WINAPI IDsDriverImpl_CreateSoundBuffer(PIDSDRIVER iface,
3494                                                       LPWAVEFORMATEX pwfx,
3495                                                       DWORD dwFlags, DWORD dwCardAddress,
3496                                                       LPDWORD pdwcbBufferSize,
3497                                                       LPBYTE *ppbBuffer,
3498                                                       LPVOID *ppvObj)
3499 {
3500     IDsDriverImpl *This = (IDsDriverImpl *)iface;
3501     IDsDriverBufferImpl** ippdsdb = (IDsDriverBufferImpl**)ppvObj;
3502     int err;
3503
3504     TRACE("(%p,%p,%lx,%lx)\n",iface,pwfx,dwFlags,dwCardAddress);
3505     /* we only support primary buffers */
3506     if (!(dwFlags & DSBCAPS_PRIMARYBUFFER))
3507         return DSERR_UNSUPPORTED;
3508     if (This->primary)
3509         return DSERR_ALLOCATED;
3510     if (dwFlags & (DSBCAPS_CTRLFREQUENCY | DSBCAPS_CTRLPAN))
3511         return DSERR_CONTROLUNAVAIL;
3512
3513     *ippdsdb = HeapAlloc(GetProcessHeap(),0,sizeof(IDsDriverBufferImpl));
3514     if (*ippdsdb == NULL)
3515         return DSERR_OUTOFMEMORY;
3516     (*ippdsdb)->lpVtbl  = &dsdbvt;
3517     (*ippdsdb)->ref     = 1;
3518     (*ippdsdb)->drv     = This;
3519
3520     err = DSDB_CreateMMAP((*ippdsdb));
3521     if ( err != DS_OK )
3522      {
3523         HeapFree(GetProcessHeap(), 0, *ippdsdb);
3524         *ippdsdb = NULL;
3525         return err;
3526      }
3527     *ppbBuffer = (*ippdsdb)->mmap_buffer;
3528     *pdwcbBufferSize = (*ippdsdb)->mmap_buflen_bytes;
3529
3530     This->primary = *ippdsdb;
3531
3532     /* buffer is ready to go */
3533     TRACE("buffer created at %p\n", *ippdsdb);
3534     return DS_OK;
3535 }
3536
3537 static HRESULT WINAPI IDsDriverImpl_DuplicateSoundBuffer(PIDSDRIVER iface,
3538                                                          PIDSDRIVERBUFFER pBuffer,
3539                                                          LPVOID *ppvObj)
3540 {
3541     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
3542     TRACE("(%p,%p): stub\n",iface,pBuffer);
3543     return DSERR_INVALIDCALL;
3544 }
3545
3546 static const IDsDriverVtbl dsdvt =
3547 {
3548     IDsDriverImpl_QueryInterface,
3549     IDsDriverImpl_AddRef,
3550     IDsDriverImpl_Release,
3551     IDsDriverImpl_GetDriverDesc,
3552     IDsDriverImpl_Open,
3553     IDsDriverImpl_Close,
3554     IDsDriverImpl_GetCaps,
3555     IDsDriverImpl_CreateSoundBuffer,
3556     IDsDriverImpl_DuplicateSoundBuffer
3557 };
3558
3559 static DWORD wodDsCreate(UINT wDevID, PIDSDRIVER* drv)
3560 {
3561     IDsDriverImpl** idrv = (IDsDriverImpl**)drv;
3562
3563     TRACE("driver created\n");
3564
3565     /* the HAL isn't much better than the HEL if we can't do mmap() */
3566     if (!(WOutDev[wDevID].outcaps.dwSupport & WAVECAPS_DIRECTSOUND)) {
3567         ERR("DirectSound flag not set\n");
3568         MESSAGE("This sound card's driver does not support direct access\n");
3569         MESSAGE("The (slower) DirectSound HEL mode will be used instead.\n");
3570         return MMSYSERR_NOTSUPPORTED;
3571     }
3572
3573     *idrv = HeapAlloc(GetProcessHeap(),0,sizeof(IDsDriverImpl));
3574     if (!*idrv)
3575         return MMSYSERR_NOMEM;
3576     (*idrv)->lpVtbl     = &dsdvt;
3577     (*idrv)->ref        = 1;
3578
3579     (*idrv)->wDevID     = wDevID;
3580     (*idrv)->primary    = NULL;
3581     return MMSYSERR_NOERROR;
3582 }
3583
3584 static DWORD wodDsDesc(UINT wDevID, PDSDRIVERDESC desc)
3585 {
3586     memcpy(desc, &(WOutDev[wDevID].ds_desc), sizeof(DSDRIVERDESC));
3587     return MMSYSERR_NOERROR;
3588 }
3589
3590 /*======================================================================*
3591 *                  Low level WAVE IN implementation                     *
3592 *======================================================================*/
3593
3594 /**************************************************************************
3595 *                       widNotifyClient                 [internal]
3596 */
3597 static DWORD widNotifyClient(WINE_WAVEDEV* wwi, WORD wMsg, DWORD dwParam1, DWORD dwParam2)
3598 {
3599    TRACE("wMsg = 0x%04x dwParm1 = %04lX dwParam2 = %04lX\n", wMsg, dwParam1, dwParam2);
3600
3601    switch (wMsg) {
3602    case WIM_OPEN:
3603    case WIM_CLOSE:
3604    case WIM_DATA:
3605        if (wwi->wFlags != DCB_NULL &&
3606            !DriverCallback(wwi->waveDesc.dwCallback, wwi->wFlags, (HDRVR)wwi->waveDesc.hWave,
3607                            wMsg, wwi->waveDesc.dwInstance, dwParam1, dwParam2)) {
3608            WARN("can't notify client !\n");
3609            return MMSYSERR_ERROR;
3610        }
3611        break;
3612    default:
3613        FIXME("Unknown callback message %u\n", wMsg);
3614        return MMSYSERR_INVALPARAM;
3615    }
3616    return MMSYSERR_NOERROR;
3617 }
3618
3619 /**************************************************************************
3620  *                      widGetDevCaps                           [internal]
3621  */
3622 static DWORD widGetDevCaps(WORD wDevID, LPWAVEOUTCAPSW lpCaps, DWORD dwSize)
3623 {
3624     TRACE("(%u, %p, %lu);\n", wDevID, lpCaps, dwSize);
3625
3626     if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
3627
3628     if (wDevID >= ALSA_WidNumDevs) {
3629         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
3630         return MMSYSERR_BADDEVICEID;
3631     }
3632
3633     memcpy(lpCaps, &WInDev[wDevID].incaps, min(dwSize, sizeof(*lpCaps)));
3634     return MMSYSERR_NOERROR;
3635 }
3636
3637 /**************************************************************************
3638  *                              widRecorder_ReadHeaders         [internal]
3639  */
3640 static void widRecorder_ReadHeaders(WINE_WAVEDEV * wwi)
3641 {
3642     enum win_wm_message tmp_msg;
3643     DWORD               tmp_param;
3644     HANDLE              tmp_ev;
3645     WAVEHDR*            lpWaveHdr;
3646
3647     while (ALSA_RetrieveRingMessage(&wwi->msgRing, &tmp_msg, &tmp_param, &tmp_ev)) {
3648         if (tmp_msg == WINE_WM_HEADER) {
3649             LPWAVEHDR*  wh;
3650             lpWaveHdr = (LPWAVEHDR)tmp_param;
3651             lpWaveHdr->lpNext = 0;
3652
3653             if (wwi->lpQueuePtr == 0)
3654                 wwi->lpQueuePtr = lpWaveHdr;
3655             else {
3656                 for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
3657                 *wh = lpWaveHdr;
3658             }
3659         } else {
3660             ERR("should only have headers left\n");
3661         }
3662     }
3663 }
3664
3665 /**************************************************************************
3666  *                              widRecorder                     [internal]
3667  */
3668 static  DWORD   CALLBACK        widRecorder(LPVOID pmt)
3669 {
3670     WORD                uDevID = (DWORD)pmt;
3671     WINE_WAVEDEV*       wwi = (WINE_WAVEDEV*)&WInDev[uDevID];
3672     WAVEHDR*            lpWaveHdr;
3673     DWORD               dwSleepTime;
3674     DWORD               bytesRead;
3675     LPVOID              buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, wwi->dwPeriodSize);
3676     char               *pOffset = buffer;
3677     enum win_wm_message msg;
3678     DWORD               param;
3679     HANDLE              ev;
3680     DWORD               frames_per_period;
3681
3682     wwi->state = WINE_WS_STOPPED;
3683     wwi->dwTotalRecorded = 0;
3684     wwi->lpQueuePtr = NULL;
3685
3686     SetEvent(wwi->hStartUpEvent);
3687
3688     /* make sleep time to be # of ms to output a period */
3689     dwSleepTime = (1024/*wwi-dwPeriodSize => overrun!*/ * 1000) / wwi->format.Format.nAvgBytesPerSec;
3690     frames_per_period = snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize);
3691     TRACE("sleeptime=%ld ms\n", dwSleepTime);
3692
3693     for (;;) {
3694         /* wait for dwSleepTime or an event in thread's queue */
3695         /* FIXME: could improve wait time depending on queue state,
3696          * ie, number of queued fragments
3697          */
3698         if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING)
3699         {
3700             int periods;
3701             DWORD frames;
3702             DWORD bytes;
3703             DWORD read;
3704
3705             lpWaveHdr = wwi->lpQueuePtr;
3706             /* read all the fragments accumulated so far */
3707             frames = snd_pcm_avail_update(wwi->pcm);
3708             bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames);
3709             TRACE("frames = %ld  bytes = %ld\n", frames, bytes);
3710             periods = bytes / wwi->dwPeriodSize;
3711             while ((periods > 0) && (wwi->lpQueuePtr))
3712             {
3713                 periods--;
3714                 bytes = wwi->dwPeriodSize;
3715                 TRACE("bytes = %ld\n",bytes);
3716                 if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded >= wwi->dwPeriodSize)
3717                 {
3718                     /* directly read fragment in wavehdr */
3719                     read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames_per_period);
3720                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
3721
3722                     TRACE("bytesRead=%ld (direct)\n", bytesRead);
3723                     if (bytesRead != (DWORD) -1)
3724                     {
3725                         /* update number of bytes recorded in current buffer and by this device */
3726                         lpWaveHdr->dwBytesRecorded += bytesRead;
3727                         wwi->dwTotalRecorded       += bytesRead;
3728
3729                         /* buffer is full. notify client */
3730                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
3731                         {
3732                             /* must copy the value of next waveHdr, because we have no idea of what
3733                              * will be done with the content of lpWaveHdr in callback
3734                              */
3735                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
3736
3737                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3738                             lpWaveHdr->dwFlags |=  WHDR_DONE;
3739
3740                             wwi->lpQueuePtr = lpNext;
3741                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3742                             lpWaveHdr = lpNext;
3743                         }
3744                     } else {
3745                         TRACE("read(%s, %p, %ld) failed (%s)\n", wwi->pcmname,
3746                             lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
3747                             frames_per_period, strerror(errno));
3748                     }
3749                 }
3750                 else
3751                 {
3752                     /* read the fragment in a local buffer */
3753                     read = wwi->read(wwi->pcm, buffer, frames_per_period);
3754                     bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read);
3755                     pOffset = buffer;
3756
3757                     TRACE("bytesRead=%ld (local)\n", bytesRead);
3758
3759                     if (bytesRead == (DWORD) -1) {
3760                         TRACE("read(%s, %p, %ld) failed (%s)\n", wwi->pcmname,
3761                               buffer, frames_per_period, strerror(errno));
3762                         continue;
3763                     }
3764
3765                     /* copy data in client buffers */
3766                     while (bytesRead != (DWORD) -1 && bytesRead > 0)
3767                     {
3768                         DWORD dwToCopy = min (bytesRead, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded);
3769
3770                         memcpy(lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded,
3771                                pOffset,
3772                                dwToCopy);
3773
3774                         /* update number of bytes recorded in current buffer and by this device */
3775                         lpWaveHdr->dwBytesRecorded += dwToCopy;
3776                         wwi->dwTotalRecorded += dwToCopy;
3777                         bytesRead -= dwToCopy;
3778                         pOffset   += dwToCopy;
3779
3780                         /* client buffer is full. notify client */
3781                         if (lpWaveHdr->dwBytesRecorded == lpWaveHdr->dwBufferLength)
3782                         {
3783                             /* must copy the value of next waveHdr, because we have no idea of what
3784                              * will be done with the content of lpWaveHdr in callback
3785                              */
3786                             LPWAVEHDR   lpNext = lpWaveHdr->lpNext;
3787                             TRACE("lpNext=%p\n", lpNext);
3788
3789                             lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3790                             lpWaveHdr->dwFlags |=  WHDR_DONE;
3791
3792                             wwi->lpQueuePtr = lpNext;
3793                             widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3794
3795                             lpWaveHdr = lpNext;
3796                             if (!lpNext && bytesRead) {
3797                                 /* before we give up, check for more header messages */
3798                                 while (ALSA_PeekRingMessage(&wwi->msgRing, &msg, &param, &ev))
3799                                 {
3800                                     if (msg == WINE_WM_HEADER) {
3801                                         LPWAVEHDR hdr;
3802                                         ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev);
3803                                         hdr = ((LPWAVEHDR)param);
3804                                         TRACE("msg = %s, hdr = %p, ev = %p\n", getCmdString(msg), hdr, ev);
3805                                         hdr->lpNext = 0;
3806                                         if (lpWaveHdr == 0) {
3807                                             /* new head of queue */
3808                                             wwi->lpQueuePtr = lpWaveHdr = hdr;
3809                                         } else {
3810                                             /* insert buffer at the end of queue */
3811                                             LPWAVEHDR*  wh;
3812                                             for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
3813                                             *wh = hdr;
3814                                         }
3815                                     } else
3816                                         break;
3817                                 }
3818
3819                                 if (lpWaveHdr == 0) {
3820                                     /* no more buffer to copy data to, but we did read more.
3821                                      * what hasn't been copied will be dropped
3822                                      */
3823                                     WARN("buffer under run! %lu bytes dropped.\n", bytesRead);
3824                                     wwi->lpQueuePtr = NULL;
3825                                     break;
3826                                 }
3827                             }
3828                         }
3829                     }
3830                 }
3831             }
3832         }
3833
3834         WAIT_OMR(&wwi->msgRing, dwSleepTime);
3835
3836         while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, &param, &ev))
3837         {
3838             TRACE("msg=%s param=0x%lx\n", getCmdString(msg), param);
3839             switch (msg) {
3840             case WINE_WM_PAUSING:
3841                 wwi->state = WINE_WS_PAUSED;
3842                 /*FIXME("Device should stop recording\n");*/
3843                 SetEvent(ev);
3844                 break;
3845             case WINE_WM_STARTING:
3846                 wwi->state = WINE_WS_PLAYING;
3847                 snd_pcm_start(wwi->pcm);
3848                 SetEvent(ev);
3849                 break;
3850             case WINE_WM_HEADER:
3851                 lpWaveHdr = (LPWAVEHDR)param;
3852                 lpWaveHdr->lpNext = 0;
3853
3854                 /* insert buffer at the end of queue */
3855                 {
3856                     LPWAVEHDR*  wh;
3857                     for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext));
3858                     *wh = lpWaveHdr;
3859                 }
3860                 break;
3861             case WINE_WM_STOPPING:
3862                 if (wwi->state != WINE_WS_STOPPED)
3863                 {
3864                     snd_pcm_drain(wwi->pcm);
3865
3866                     /* read any headers in queue */
3867                     widRecorder_ReadHeaders(wwi);
3868
3869                     /* return current buffer to app */
3870                     lpWaveHdr = wwi->lpQueuePtr;
3871                     if (lpWaveHdr)
3872                     {
3873                         LPWAVEHDR       lpNext = lpWaveHdr->lpNext;
3874                         TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
3875                         lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3876                         lpWaveHdr->dwFlags |= WHDR_DONE;
3877                         wwi->lpQueuePtr = lpNext;
3878                         widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3879                     }
3880                 }
3881                 wwi->state = WINE_WS_STOPPED;
3882                 SetEvent(ev);
3883                 break;
3884             case WINE_WM_RESETTING:
3885                 if (wwi->state != WINE_WS_STOPPED)
3886                 {
3887                     snd_pcm_drain(wwi->pcm);
3888                 }
3889                 wwi->state = WINE_WS_STOPPED;
3890                 wwi->dwTotalRecorded = 0;
3891
3892                 /* read any headers in queue */
3893                 widRecorder_ReadHeaders(wwi);
3894
3895                 /* return all buffers to the app */
3896                 for (lpWaveHdr = wwi->lpQueuePtr; lpWaveHdr; lpWaveHdr = lpWaveHdr->lpNext) {
3897                     TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext);
3898                     lpWaveHdr->dwFlags &= ~WHDR_INQUEUE;
3899                     lpWaveHdr->dwFlags |= WHDR_DONE;
3900                     wwi->lpQueuePtr = lpWaveHdr->lpNext;
3901                     widNotifyClient(wwi, WIM_DATA, (DWORD)lpWaveHdr, 0);
3902                 }
3903
3904                 wwi->lpQueuePtr = NULL;
3905                 SetEvent(ev);
3906                 break;
3907             case WINE_WM_CLOSING:
3908                 wwi->hThread = 0;
3909                 wwi->state = WINE_WS_CLOSED;
3910                 SetEvent(ev);
3911                 HeapFree(GetProcessHeap(), 0, buffer);
3912                 ExitThread(0);
3913                 /* shouldn't go here */
3914             case WINE_WM_UPDATE:
3915                 SetEvent(ev);
3916                 break;
3917
3918             default:
3919                 FIXME("unknown message %d\n", msg);
3920                 break;
3921             }
3922         }
3923     }
3924     ExitThread(0);
3925     /* just for not generating compilation warnings... should never be executed */
3926     return 0;
3927 }
3928
3929 /**************************************************************************
3930  *                              widOpen                         [internal]
3931  */
3932 static DWORD widOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
3933 {
3934     WINE_WAVEDEV*               wwi;
3935     snd_pcm_hw_params_t *       hw_params;
3936     snd_pcm_sw_params_t *       sw_params;
3937     snd_pcm_access_t            access;
3938     snd_pcm_format_t            format;
3939     unsigned int                rate;
3940     unsigned int                buffer_time = 500000;
3941     unsigned int                period_time = 10000;
3942     snd_pcm_uframes_t           buffer_size;
3943     snd_pcm_uframes_t           period_size;
3944     int                         flags;
3945     snd_pcm_t *                 pcm;
3946     int                         err;
3947     int                         dir;
3948
3949     snd_pcm_hw_params_alloca(&hw_params);
3950     snd_pcm_sw_params_alloca(&sw_params);
3951
3952     /* JPW TODO - review this code */
3953     TRACE("(%u, %p, %08lX);\n", wDevID, lpDesc, dwFlags);
3954     if (lpDesc == NULL) {
3955         WARN("Invalid Parameter !\n");
3956         return MMSYSERR_INVALPARAM;
3957     }
3958     if (wDevID >= ALSA_WidNumDevs) {
3959         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
3960         return MMSYSERR_BADDEVICEID;
3961     }
3962
3963     /* only PCM format is supported so far... */
3964     if (!supportedFormat(lpDesc->lpFormat)) {
3965         WARN("Bad format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
3966              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
3967              lpDesc->lpFormat->nSamplesPerSec);
3968         return WAVERR_BADFORMAT;
3969     }
3970
3971     if (dwFlags & WAVE_FORMAT_QUERY) {
3972         TRACE("Query format: tag=%04X nChannels=%d nSamplesPerSec=%ld !\n",
3973              lpDesc->lpFormat->wFormatTag, lpDesc->lpFormat->nChannels,
3974              lpDesc->lpFormat->nSamplesPerSec);
3975         return MMSYSERR_NOERROR;
3976     }
3977
3978     wwi = &WInDev[wDevID];
3979
3980     if (wwi->pcm != NULL) {
3981         WARN("already allocated\n");
3982         return MMSYSERR_ALLOCATED;
3983     }
3984
3985     if ((dwFlags & WAVE_DIRECTSOUND) && !(wwi->dwSupport & WAVECAPS_DIRECTSOUND))
3986         /* not supported, ignore it */
3987         dwFlags &= ~WAVE_DIRECTSOUND;
3988
3989     wwi->pcm = 0;
3990     flags = SND_PCM_NONBLOCK;
3991 #if 0
3992     if ( dwFlags & WAVE_DIRECTSOUND )
3993         flags |= SND_PCM_ASYNC;
3994 #endif
3995
3996     if ( (err=snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, flags)) < 0 )
3997     {
3998         ERR("Error open: %s\n", snd_strerror(err));
3999         return MMSYSERR_NOTENABLED;
4000     }
4001
4002     wwi->wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
4003
4004     memcpy(&wwi->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
4005     copy_format(lpDesc->lpFormat, &wwi->format);
4006
4007     if (wwi->format.Format.wBitsPerSample == 0) {
4008         WARN("Resetting zeroed wBitsPerSample\n");
4009         wwi->format.Format.wBitsPerSample = 8 *
4010             (wwi->format.Format.nAvgBytesPerSec /
4011              wwi->format.Format.nSamplesPerSec) /
4012             wwi->format.Format.nChannels;
4013     }
4014
4015     snd_pcm_hw_params_any(pcm, hw_params);
4016
4017 #define EXIT_ON_ERROR(f,e,txt) do \
4018 { \
4019     int err; \
4020     if ( (err = (f) ) < 0) \
4021     { \
4022         WARN(txt ": %s\n", snd_strerror(err)); \
4023         snd_pcm_close(pcm); \
4024         return e; \
4025     } \
4026 } while(0)
4027
4028     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
4029     if ( ( err = snd_pcm_hw_params_set_access(pcm, hw_params, access ) ) < 0) {
4030         WARN("mmap not available. switching to standard write.\n");
4031         access = SND_PCM_ACCESS_RW_INTERLEAVED;
4032         EXIT_ON_ERROR( snd_pcm_hw_params_set_access(pcm, hw_params, access ), MMSYSERR_INVALPARAM, "unable to set access for playback");
4033         wwi->read = snd_pcm_readi;
4034     }
4035     else
4036         wwi->read = snd_pcm_mmap_readi;
4037
4038     EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwi->format.Format.nChannels), WAVERR_BADFORMAT, "unable to set required channels");
4039
4040     if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
4041         ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
4042         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) {
4043         format = (wwi->format.Format.wBitsPerSample == 8) ? SND_PCM_FORMAT_U8 :
4044                  (wwi->format.Format.wBitsPerSample == 16) ? SND_PCM_FORMAT_S16_LE :
4045                  (wwi->format.Format.wBitsPerSample == 24) ? SND_PCM_FORMAT_S24_LE :
4046                  (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_S32_LE : -1;
4047     } else if ((wwi->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
4048         IsEqualGUID(&wwi->format.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)){
4049         format = (wwi->format.Format.wBitsPerSample == 32) ? SND_PCM_FORMAT_FLOAT_LE : -1;
4050     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_MULAW) {
4051         FIXME("unimplemented format: WAVE_FORMAT_MULAW\n");
4052         snd_pcm_close(pcm);
4053         return WAVERR_BADFORMAT;
4054     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ALAW) {
4055         FIXME("unimplemented format: WAVE_FORMAT_ALAW\n");
4056         snd_pcm_close(pcm);
4057         return WAVERR_BADFORMAT;
4058     } else if (wwi->format.Format.wFormatTag == WAVE_FORMAT_ADPCM) {
4059         FIXME("unimplemented format: WAVE_FORMAT_ADPCM\n");
4060         snd_pcm_close(pcm);
4061         return WAVERR_BADFORMAT;
4062     } else {
4063         ERR("invalid format: %0x04x\n", wwi->format.Format.wFormatTag);
4064         snd_pcm_close(pcm);
4065         return WAVERR_BADFORMAT;
4066     }
4067
4068     EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), WAVERR_BADFORMAT, "unable to set required format");
4069
4070     rate = wwi->format.Format.nSamplesPerSec;
4071     dir = 0;
4072     err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, &dir);
4073     if (err < 0) {
4074         WARN("Rate %ld Hz not available for playback: %s\n", wwi->format.Format.nSamplesPerSec, snd_strerror(rate));
4075         snd_pcm_close(pcm);
4076         return WAVERR_BADFORMAT;
4077     }
4078     if (!NearMatch(rate, wwi->format.Format.nSamplesPerSec)) {
4079         WARN("Rate doesn't match (requested %ld Hz, got %d Hz)\n", wwi->format.Format.nSamplesPerSec, rate);
4080         snd_pcm_close(pcm);
4081         return WAVERR_BADFORMAT;
4082     }
4083
4084     dir=0;
4085     EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
4086     dir=0;
4087     EXIT_ON_ERROR( snd_pcm_hw_params_set_period_time_near(pcm, hw_params, &period_time, &dir), MMSYSERR_INVALPARAM, "unable to set period time");
4088
4089     EXIT_ON_ERROR( snd_pcm_hw_params(pcm, hw_params), MMSYSERR_INVALPARAM, "unable to set hw params for playback");
4090
4091     dir=0;
4092     err = snd_pcm_hw_params_get_period_size(hw_params, &period_size, &dir);
4093     err = snd_pcm_hw_params_get_buffer_size(hw_params, &buffer_size);
4094
4095     snd_pcm_sw_params_current(pcm, sw_params);
4096     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");
4097     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence size");
4098     EXIT_ON_ERROR( snd_pcm_sw_params_set_avail_min(pcm, sw_params, period_size), MMSYSERR_ERROR, "unable to set avail min");
4099     EXIT_ON_ERROR( snd_pcm_sw_params_set_xfer_align(pcm, sw_params, 1), MMSYSERR_ERROR, "unable to set xfer align");
4100     EXIT_ON_ERROR( snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, 0), MMSYSERR_ERROR, "unable to set silence threshold");
4101     EXIT_ON_ERROR( snd_pcm_sw_params(pcm, sw_params), MMSYSERR_ERROR, "unable to set sw params for playback");
4102 #undef EXIT_ON_ERROR
4103
4104     snd_pcm_prepare(pcm);
4105
4106     if (TRACE_ON(wave))
4107         ALSA_TraceParameters(hw_params, sw_params, FALSE);
4108
4109     /* now, we can save all required data for later use... */
4110     if ( wwi->hw_params )
4111         snd_pcm_hw_params_free(wwi->hw_params);
4112     snd_pcm_hw_params_malloc(&(wwi->hw_params));
4113     snd_pcm_hw_params_copy(wwi->hw_params, hw_params);
4114
4115     wwi->dwBufferSize = snd_pcm_frames_to_bytes(pcm, buffer_size);
4116     wwi->lpQueuePtr = wwi->lpPlayPtr = wwi->lpLoopPtr = NULL;
4117     wwi->pcm = pcm;
4118
4119     ALSA_InitRingMessage(&wwi->msgRing);
4120
4121     wwi->dwPeriodSize = period_size;
4122     /*if (wwi->dwFragmentSize % wwi->format.Format.nBlockAlign)
4123         ERR("Fragment doesn't contain an integral number of data blocks\n");
4124     */
4125     TRACE("dwPeriodSize=%lu\n", wwi->dwPeriodSize);
4126     TRACE("wBitsPerSample=%u, nAvgBytesPerSec=%lu, nSamplesPerSec=%lu, nChannels=%u nBlockAlign=%u!\n",
4127           wwi->format.Format.wBitsPerSample, wwi->format.Format.nAvgBytesPerSec,
4128           wwi->format.Format.nSamplesPerSec, wwi->format.Format.nChannels,
4129           wwi->format.Format.nBlockAlign);
4130
4131     if (!(dwFlags & WAVE_DIRECTSOUND)) {
4132         wwi->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
4133         wwi->hThread = CreateThread(NULL, 0, widRecorder, (LPVOID)(DWORD)wDevID, 0, &(wwi->dwThreadID));
4134         if (wwi->hThread)
4135             SetThreadPriority(wwi->hThread, THREAD_PRIORITY_TIME_CRITICAL);
4136         WaitForSingleObject(wwi->hStartUpEvent, INFINITE);
4137         CloseHandle(wwi->hStartUpEvent);
4138     } else {
4139         wwi->hThread = INVALID_HANDLE_VALUE;
4140         wwi->dwThreadID = 0;
4141     }
4142     wwi->hStartUpEvent = INVALID_HANDLE_VALUE;
4143
4144     return widNotifyClient(wwi, WIM_OPEN, 0L, 0L);
4145 }
4146
4147
4148 /**************************************************************************
4149  *                              widClose                        [internal]
4150  */
4151 static DWORD widClose(WORD wDevID)
4152 {
4153     DWORD               ret = MMSYSERR_NOERROR;
4154     WINE_WAVEDEV*       wwi;
4155
4156     TRACE("(%u);\n", wDevID);
4157
4158     if (wDevID >= ALSA_WidNumDevs) {
4159         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4160         return MMSYSERR_BADDEVICEID;
4161     }
4162
4163     if (WInDev[wDevID].pcm == NULL) {
4164         WARN("Requested to close already closed device %d!\n", wDevID);
4165         return MMSYSERR_BADDEVICEID;
4166     }
4167
4168     wwi = &WInDev[wDevID];
4169     if (wwi->lpQueuePtr) {
4170         WARN("buffers still playing !\n");
4171         ret = WAVERR_STILLPLAYING;
4172     } else {
4173         if (wwi->hThread != INVALID_HANDLE_VALUE) {
4174             ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_CLOSING, 0, TRUE);
4175         }
4176         ALSA_DestroyRingMessage(&wwi->msgRing);
4177
4178         snd_pcm_hw_params_free(wwi->hw_params);
4179         wwi->hw_params = NULL;
4180
4181         snd_pcm_close(wwi->pcm);
4182         wwi->pcm = NULL;
4183
4184         ret = widNotifyClient(wwi, WIM_CLOSE, 0L, 0L);
4185     }
4186
4187     return ret;
4188 }
4189
4190 /**************************************************************************
4191  *                              widAddBuffer                    [internal]
4192  *
4193  */
4194 static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
4195 {
4196     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
4197
4198     /* first, do the sanity checks... */
4199     if (wDevID >= ALSA_WidNumDevs) {
4200         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4201         return MMSYSERR_BADDEVICEID;
4202     }
4203
4204     if (WInDev[wDevID].pcm == NULL) {
4205         WARN("Requested to add buffer to already closed device %d!\n", wDevID);
4206         return MMSYSERR_BADDEVICEID;
4207     }
4208
4209     if (lpWaveHdr->lpData == NULL || !(lpWaveHdr->dwFlags & WHDR_PREPARED))
4210         return WAVERR_UNPREPARED;
4211
4212     if (lpWaveHdr->dwFlags & WHDR_INQUEUE)
4213         return WAVERR_STILLPLAYING;
4214
4215     lpWaveHdr->dwFlags &= ~WHDR_DONE;
4216     lpWaveHdr->dwFlags |= WHDR_INQUEUE;
4217     lpWaveHdr->lpNext = 0;
4218
4219     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_HEADER, (DWORD)lpWaveHdr, FALSE);
4220
4221     return MMSYSERR_NOERROR;
4222 }
4223
4224 /**************************************************************************
4225  *                              widStart                        [internal]
4226  *
4227  */
4228 static DWORD widStart(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
4229 {
4230     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
4231
4232     /* first, do the sanity checks... */
4233     if (wDevID >= ALSA_WidNumDevs) {
4234         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4235         return MMSYSERR_BADDEVICEID;
4236     }
4237
4238     if (WInDev[wDevID].pcm == NULL) {
4239         WARN("Requested to start closed device %d!\n", wDevID);
4240         return MMSYSERR_BADDEVICEID;
4241     }
4242
4243     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STARTING, 0, TRUE);
4244
4245     return MMSYSERR_NOERROR;
4246 }
4247
4248 /**************************************************************************
4249  *                              widStop                 [internal]
4250  *
4251  */
4252 static DWORD widStop(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
4253 {
4254     TRACE("(%u, %p, %08lX);\n", wDevID, lpWaveHdr, dwSize);
4255
4256     /* first, do the sanity checks... */
4257     if (wDevID >= ALSA_WidNumDevs) {
4258         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4259         return MMSYSERR_BADDEVICEID;
4260     }
4261
4262     if (WInDev[wDevID].pcm == NULL) {
4263         WARN("Requested to stop closed device %d!\n", wDevID);
4264         return MMSYSERR_BADDEVICEID;
4265     }
4266
4267     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_STOPPING, 0, TRUE);
4268
4269     return MMSYSERR_NOERROR;
4270 }
4271
4272 /**************************************************************************
4273  *                      widReset                                [internal]
4274  */
4275 static DWORD widReset(WORD wDevID)
4276 {
4277     TRACE("(%u);\n", wDevID);
4278     if (wDevID >= ALSA_WidNumDevs) {
4279         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4280         return MMSYSERR_BADDEVICEID;
4281     }
4282
4283     if (WInDev[wDevID].pcm == NULL) {
4284         WARN("Requested to reset closed device %d!\n", wDevID);
4285         return MMSYSERR_BADDEVICEID;
4286     }
4287
4288     ALSA_AddRingMessage(&WInDev[wDevID].msgRing, WINE_WM_RESETTING, 0, TRUE);
4289     return MMSYSERR_NOERROR;
4290 }
4291
4292 /**************************************************************************
4293  *                              widGetPosition                  [internal]
4294  */
4295 static DWORD widGetPosition(WORD wDevID, LPMMTIME lpTime, DWORD uSize)
4296 {
4297     WINE_WAVEDEV*       wwi;
4298
4299     TRACE("(%u, %p, %lu);\n", wDevID, lpTime, uSize);
4300
4301     if (wDevID >= ALSA_WidNumDevs) {
4302         TRACE("Requested device %d, but only %ld are known!\n", wDevID, ALSA_WidNumDevs);
4303         return MMSYSERR_BADDEVICEID;
4304     }
4305
4306     if (WInDev[wDevID].state == WINE_WS_CLOSED) {
4307         WARN("Requested position of closed device %d!\n", wDevID);
4308         return MMSYSERR_BADDEVICEID;
4309     }
4310
4311     if (lpTime == NULL) {
4312         WARN("invalid parameter: lpTime = NULL\n");
4313         return MMSYSERR_INVALPARAM;
4314     }
4315
4316     wwi = &WInDev[wDevID];
4317     ALSA_AddRingMessage(&wwi->msgRing, WINE_WM_UPDATE, 0, TRUE);
4318
4319     return bytes_to_mmtime(lpTime, wwi->dwTotalRecorded, &wwi->format);
4320 }
4321
4322 /**************************************************************************
4323  *                              widGetNumDevs                   [internal]
4324  */
4325 static  DWORD   widGetNumDevs(void)
4326 {
4327     return ALSA_WidNumDevs;
4328 }
4329
4330 /**************************************************************************
4331  *                              widDevInterfaceSize             [internal]
4332  */
4333 static DWORD widDevInterfaceSize(UINT wDevID, LPDWORD dwParam1)
4334 {
4335     TRACE("(%u, %p)\n", wDevID, dwParam1);
4336
4337     *dwParam1 = MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
4338                                     NULL, 0 ) * sizeof(WCHAR);
4339     return MMSYSERR_NOERROR;
4340 }
4341
4342 /**************************************************************************
4343  *                              widDevInterface                 [internal]
4344  */
4345 static DWORD widDevInterface(UINT wDevID, PWCHAR dwParam1, DWORD dwParam2)
4346 {
4347     if (dwParam2 >= MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
4348                                         NULL, 0 ) * sizeof(WCHAR))
4349     {
4350         MultiByteToWideChar(CP_ACP, 0, WInDev[wDevID].interface_name, -1,
4351                             dwParam1, dwParam2 / sizeof(WCHAR));
4352         return MMSYSERR_NOERROR;
4353     }
4354     return MMSYSERR_INVALPARAM;
4355 }
4356
4357 /**************************************************************************
4358  *                              widDsCreate                     [internal]
4359  */
4360 static DWORD widDsCreate(UINT wDevID, PIDSCDRIVER* drv)
4361 {
4362     TRACE("(%d,%p)\n",wDevID,drv);
4363
4364     /* the HAL isn't much better than the HEL if we can't do mmap() */
4365     FIXME("DirectSoundCapture not implemented\n");
4366     MESSAGE("The (slower) DirectSound HEL mode will be used instead.\n");
4367     return MMSYSERR_NOTSUPPORTED;
4368 }
4369
4370 /**************************************************************************
4371  *                              widDsDesc                       [internal]
4372  */
4373 static DWORD widDsDesc(UINT wDevID, PDSDRIVERDESC desc)
4374 {
4375     memcpy(desc, &(WInDev[wDevID].ds_desc), sizeof(DSDRIVERDESC));
4376     return MMSYSERR_NOERROR;
4377 }
4378
4379 /**************************************************************************
4380  *                              widMessage (WINEALSA.@)
4381  */
4382 DWORD WINAPI ALSA_widMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
4383                              DWORD dwParam1, DWORD dwParam2)
4384 {
4385     TRACE("(%u, %s, %08lX, %08lX, %08lX);\n",
4386           wDevID, getMessage(wMsg), dwUser, dwParam1, dwParam2);
4387
4388     switch (wMsg) {
4389     case DRVM_INIT:
4390     case DRVM_EXIT:
4391     case DRVM_ENABLE:
4392     case DRVM_DISABLE:
4393         /* FIXME: Pretend this is supported */
4394         return 0;
4395     case WIDM_OPEN:             return widOpen          (wDevID, (LPWAVEOPENDESC)dwParam1,      dwParam2);
4396     case WIDM_CLOSE:            return widClose         (wDevID);
4397     case WIDM_ADDBUFFER:        return widAddBuffer     (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
4398     case WIDM_PREPARE:          return MMSYSERR_NOTSUPPORTED;
4399     case WIDM_UNPREPARE:        return MMSYSERR_NOTSUPPORTED;
4400     case WIDM_GETDEVCAPS:       return widGetDevCaps    (wDevID, (LPWAVEOUTCAPSW)dwParam1,      dwParam2);
4401     case WIDM_GETNUMDEVS:       return widGetNumDevs    ();
4402     case WIDM_GETPOS:           return widGetPosition   (wDevID, (LPMMTIME)dwParam1,            dwParam2);
4403     case WIDM_RESET:            return widReset         (wDevID);
4404     case WIDM_START:            return widStart (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
4405     case WIDM_STOP:             return widStop  (wDevID, (LPWAVEHDR)dwParam1,           dwParam2);
4406     case DRV_QUERYDEVICEINTERFACESIZE: return widDevInterfaceSize       (wDevID, (LPDWORD)dwParam1);
4407     case DRV_QUERYDEVICEINTERFACE:     return widDevInterface           (wDevID, (PWCHAR)dwParam1, dwParam2);
4408     case DRV_QUERYDSOUNDIFACE:  return widDsCreate   (wDevID, (PIDSCDRIVER*)dwParam1);
4409     case DRV_QUERYDSOUNDDESC:   return widDsDesc     (wDevID, (PDSDRIVERDESC)dwParam1);
4410     default:
4411         FIXME("unknown message %d!\n", wMsg);
4412     }
4413     return MMSYSERR_NOTSUPPORTED;
4414 }
4415
4416 #else
4417
4418 /**************************************************************************
4419  *                              widMessage (WINEALSA.@)
4420  */
4421 DWORD WINAPI ALSA_widMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
4422                              DWORD dwParam1, DWORD dwParam2)
4423 {
4424     FIXME("(%u, %04X, %08lX, %08lX, %08lX):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
4425     return MMSYSERR_NOTENABLED;
4426 }
4427
4428 /**************************************************************************
4429  *                              wodMessage (WINEALSA.@)
4430  */
4431 DWORD WINAPI ALSA_wodMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
4432                              DWORD dwParam1, DWORD dwParam2)
4433 {
4434     FIXME("(%u, %04X, %08lX, %08lX, %08lX):stub\n", wDevID, wMsg, dwUser, dwParam1, dwParam2);
4435     return MMSYSERR_NOTENABLED;
4436 }
4437
4438 #endif /* HAVE_ALSA */