loader/afl.c

   1 /**************************************************************************
   2
   3
   4   This file will contain an interface to ACM drivers.
   5   Its content will be based mainly on wine/dlls/msacm32
   6   actually, for audio decompression only the following functions
   7   are needed:
   8
   9   acmStreamOpen ( takes formats of src and dest, returns stream handle )
  10   acmStreamPrepareHeader ( takes stream handler and info on data )
  11   acmStreamConvert ( the same as PrepareHeader )
  12   acmStreamUnprepareHeader
  13   acmStreamClose
  14   acmStreamSize
  15   maybe acmStreamReset
  16
  17   In future I'll also add functions for format enumeration,
  18   but not right now.
  19
  20   Modified for use with MPlayer, detailed changelog at
  21   http://svn.mplayerhq.hu/mplayer/trunk/
  22
  23 ***************************************************************************/
  24 #include "config.h"
  25 #include "debug.h"
  26
  27 #include "wine/winbase.h"
  28 #include "wine/windef.h"
  29 #include "wine/winuser.h"
  30 #include "wine/vfw.h"
  31 #include "wine/winestring.h"
  32 #include "wine/driver.h"
  33 #include "wine/winerror.h"
  34 #include "wine/msacm.h"
  35 #include "wine/msacmdrv.h"
  36 #include "wineacm.h"
  37 #ifndef __MINGW32__
  38 #include "ext.h"
  39 #endif
  40 #include "drv.h"
  41
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #pragma pack(1)
  46 #define OpenDriverA DrvOpen
  47 #define CloseDriver DrvClose
  48
  49 static inline PWINE_ACMSTREAM ACM_GetStream(HACMSTREAM has)
  50 {
  51     return (PWINE_ACMSTREAM)has;
  52 }
  53
  54 /***********************************************************************
  55  *           acmDriverAddA (MSACM32.2)
  56  */
  57 MMRESULT WINAPI acmDriverAddA(PHACMDRIVERID phadid, HINSTANCE hinstModule,
  58                               LPARAM lParam, DWORD dwPriority, DWORD fdwAdd)
  59 {
  60     if (!phadid)
  61         return MMSYSERR_INVALPARAM;
  62
  63     /* Check if any unknown flags */
  64     if (fdwAdd &
  65         ~(ACM_DRIVERADDF_FUNCTION|ACM_DRIVERADDF_NOTIFYHWND|
  66           ACM_DRIVERADDF_GLOBAL))
  67         return MMSYSERR_INVALFLAG;
  68
  69     /* Check if any incompatible flags */
  70     if ((fdwAdd & ACM_DRIVERADDF_FUNCTION) &&
  71         (fdwAdd & ACM_DRIVERADDF_NOTIFYHWND))
  72         return MMSYSERR_INVALFLAG;
  73
  74     /* FIXME: in fact, should GetModuleFileName(hinstModule) and do a
  75      * LoadDriver on it, to be sure we can call SendDriverMessage on the
  76      * hDrvr handle.
  77      */
  78     *phadid = (HACMDRIVERID) MSACM_RegisterDriver(NULL, 0, hinstModule);
  79
  80     /* FIXME: lParam, dwPriority and fdwAdd ignored */
  81
  82     return MMSYSERR_NOERROR;
  83 }
  84
  85 /***********************************************************************
  86  *           acmDriverClose (MSACM32.4)
  87  */
  88 MMRESULT WINAPI acmDriverClose(HACMDRIVER had, DWORD fdwClose)
  89 {
  90     PWINE_ACMDRIVER  p;
  91     PWINE_ACMDRIVER* tp;
  92
  93     if (fdwClose)
  94         return MMSYSERR_INVALFLAG;
  95
  96     p = MSACM_GetDriver(had);
  97     if (!p)
  98         return MMSYSERR_INVALHANDLE;
  99
 100     for (tp = &(p->obj.pACMDriverID->pACMDriverList); *tp; *tp = (*tp)->pNextACMDriver) {
 101         if (*tp == p) {
 102             *tp = (*tp)->pNextACMDriver;
 103             break;
 104         }
 105     }
 106
 107     if (p->hDrvr && !p->obj.pACMDriverID->pACMDriverList)
 108         CloseDriver(p->hDrvr);
 109
 110     HeapFree(MSACM_hHeap, 0, p);
 111
 112     return MMSYSERR_NOERROR;
 113 }
 114
 115 /***********************************************************************
 116  *           acmDriverEnum (MSACM32.7)
 117  */
 118 MMRESULT WINAPI acmDriverEnum(ACMDRIVERENUMCB fnCallback, DWORD dwInstance, DWORD fdwEnum)
 119 {
 120     PWINE_ACMDRIVERID   p;
 121     DWORD               fdwSupport;
 122
 123     if (!fnCallback) {
 124         return MMSYSERR_INVALPARAM;
 125     }
 126
 127     if (fdwEnum && ~(ACM_DRIVERENUMF_NOLOCAL|ACM_DRIVERENUMF_DISABLED)) {
 128         return MMSYSERR_INVALFLAG;
 129     }
 130
 131     for (p = MSACM_pFirstACMDriverID; p; p = p->pNextACMDriverID) {
 132         fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 133         if (!p->bEnabled) {
 134             if (fdwEnum & ACM_DRIVERENUMF_DISABLED)
 135                 fdwSupport |= ACMDRIVERDETAILS_SUPPORTF_DISABLED;
 136             else
 137                 continue;
 138         }
 139         (*fnCallback)((HACMDRIVERID) p, dwInstance, fdwSupport);
 140     }
 141
 142     return MMSYSERR_NOERROR;
 143 }
 144
 145 /***********************************************************************
 146  *           acmDriverID (MSACM32.8)
 147  */
 148 MMRESULT WINAPI acmDriverID(HACMOBJ hao, PHACMDRIVERID phadid, DWORD fdwDriverID)
 149 {
 150     PWINE_ACMOBJ pao;
 151
 152     pao = MSACM_GetObj(hao);
 153     if (!pao)
 154         return MMSYSERR_INVALHANDLE;
 155
 156     if (!phadid)
 157         return MMSYSERR_INVALPARAM;
 158
 159     if (fdwDriverID)
 160         return MMSYSERR_INVALFLAG;
 161
 162     *phadid = (HACMDRIVERID) pao->pACMDriverID;
 163
 164     return MMSYSERR_NOERROR;
 165 }
 166
 167 /***********************************************************************
 168  *           acmDriverMessage (MSACM32.9)
 169  * FIXME
 170  *   Not implemented
 171  */
 172 LRESULT WINAPI acmDriverMessage(HACMDRIVER had, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
 173 {
 174     PWINE_ACMDRIVER pad = MSACM_GetDriver(had);
 175     if (!pad)
 176         return MMSYSERR_INVALPARAM;
 177
 178     /* FIXME: Check if uMsg legal */
 179
 180     if (!SendDriverMessage(pad->hDrvr, uMsg, lParam1, lParam2))
 181         return MMSYSERR_NOTSUPPORTED;
 182
 183     return MMSYSERR_NOERROR;
 184 }
 185
 186
 187 /***********************************************************************
 188  *           acmDriverOpen (MSACM32.10)
 189  */
 190 MMRESULT WINAPI acmDriverOpen(PHACMDRIVER phad, HACMDRIVERID hadid, DWORD fdwOpen)
 191 {
 192     PWINE_ACMDRIVERID   padid;
 193     PWINE_ACMDRIVER     pad;
 194     ICOPEN              icopen;
 195
 196
 197     TRACE("(%p, %x, %08lu)\n", phad, hadid, fdwOpen);
 198
 199     if (!phad)
 200         return MMSYSERR_INVALPARAM;
 201
 202     padid = MSACM_GetDriverID(hadid);
 203     if (!padid)
 204         return MMSYSERR_INVALHANDLE;
 205
 206     if (fdwOpen)
 207         return MMSYSERR_INVALFLAG;
 208
 209     pad = (PWINE_ACMDRIVER) HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMDRIVER));
 210     if (!pad)
 211         return MMSYSERR_NOMEM;
 212
 213     pad->obj.pACMDriverID = padid;
 214     icopen.fccType              = mmioFOURCC('a', 'u', 'd', 'c');
 215     icopen.fccHandler           = (long)padid->pszFileName;
 216     icopen.dwSize               = sizeof(ICOPEN);
 217     icopen.dwFlags              = 0;
 218
 219     icopen.pV1Reserved = padid->pszFileName;
 220     if (!padid->hInstModule)
 221         pad->hDrvr = OpenDriverA((long)&icopen);
 222     else
 223         pad->hDrvr = padid->hInstModule;
 224
 225     if (!pad->hDrvr) {
 226         HeapFree(MSACM_hHeap, 0, pad);
 227         return MMSYSERR_ERROR;
 228     }
 229
 230     pad->pfnDriverProc = GetProcAddress(pad->hDrvr, "DriverProc");
 231
 232     /* insert new pad at beg of list */
 233     pad->pNextACMDriver = padid->pACMDriverList;
 234     padid->pACMDriverList = pad;
 235
 236     /* FIXME: Create a WINE_ACMDRIVER32 */
 237     *phad = (HACMDRIVER)pad;
 238
 239     return MMSYSERR_NOERROR;
 240 }
 241
 242 /***********************************************************************
 243  *           acmDriverRemove (MSACM32.12)
 244  */
 245 MMRESULT WINAPI acmDriverRemove(HACMDRIVERID hadid, DWORD fdwRemove)
 246 {
 247     PWINE_ACMDRIVERID padid;
 248
 249     padid = MSACM_GetDriverID(hadid);
 250     if (!padid)
 251         return MMSYSERR_INVALHANDLE;
 252
 253     if (fdwRemove)
 254         return MMSYSERR_INVALFLAG;
 255
 256     MSACM_UnregisterDriver(padid);
 257
 258     return MMSYSERR_NOERROR;
 259 }
 260
 261
 262
 263 /**********************************************************************/
 264
 265 HANDLE MSACM_hHeap = (HANDLE) NULL;
 266 PWINE_ACMDRIVERID MSACM_pFirstACMDriverID = NULL;
 267 PWINE_ACMDRIVERID MSACM_pLastACMDriverID = NULL;
 268
 269 /***********************************************************************
 270  *           MSACM_RegisterDriver32()
 271  */
 272 PWINE_ACMDRIVERID MSACM_RegisterDriver(const char* pszFileName,
 273                                        WORD wFormatTag,
 274                                        HINSTANCE hinstModule)
 275 {
 276     PWINE_ACMDRIVERID padid;
 277
 278     TRACE("('%s', '%x', 0x%08x)\n", pszFileName, wFormatTag, hinstModule);
 279
 280 #ifndef WIN32_LOADER
 281         MSACM_hHeap = GetProcessHeap();
 282 #endif
 283     padid = (PWINE_ACMDRIVERID) HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMDRIVERID));
 284     padid->pszFileName = malloc(strlen(pszFileName)+1);
 285     strcpy(padid->pszFileName, pszFileName);
 286 //    1~strdup(pszDriverAlias);
 287     padid->wFormatTag = wFormatTag;
 288     padid->hInstModule = hinstModule;
 289     padid->bEnabled = TRUE;
 290     padid->pACMDriverList = NULL;
 291     padid->pNextACMDriverID = NULL;
 292     padid->pPrevACMDriverID = MSACM_pLastACMDriverID;
 293     if (MSACM_pLastACMDriverID)
 294         MSACM_pLastACMDriverID->pNextACMDriverID = padid;
 295     MSACM_pLastACMDriverID = padid;
 296     if (!MSACM_pFirstACMDriverID)
 297         MSACM_pFirstACMDriverID = padid;
 298
 299     return padid;
 300 }
 301
 302
 303 /***********************************************************************
 304  *           MSACM_UnregisterDriver32()
 305  */
 306 PWINE_ACMDRIVERID MSACM_UnregisterDriver(PWINE_ACMDRIVERID p)
 307 {
 308     PWINE_ACMDRIVERID pNextACMDriverID;
 309
 310     while (p->pACMDriverList)
 311         acmDriverClose((HACMDRIVER) p->pACMDriverList, 0);
 312
 313     free(p->pszFileName);
 314
 315     if (p == MSACM_pFirstACMDriverID)
 316         MSACM_pFirstACMDriverID = p->pNextACMDriverID;
 317     if (p == MSACM_pLastACMDriverID)
 318         MSACM_pLastACMDriverID = p->pPrevACMDriverID;
 319
 320     if (p->pPrevACMDriverID)
 321         p->pPrevACMDriverID->pNextACMDriverID = p->pNextACMDriverID;
 322     if (p->pNextACMDriverID)
 323         p->pNextACMDriverID->pPrevACMDriverID = p->pPrevACMDriverID;
 324
 325     pNextACMDriverID = p->pNextACMDriverID;
 326
 327     HeapFree(MSACM_hHeap, 0, p);
 328
 329     return pNextACMDriverID;
 330 }
 331
 332 /***********************************************************************
 333  *           MSACM_UnregisterAllDrivers32()
 334  * FIXME
 335  *   Where should this function be called?
 336  */
 337 void MSACM_UnregisterAllDrivers(void)
 338 {
 339     PWINE_ACMDRIVERID p;
 340
 341     for (p = MSACM_pFirstACMDriverID; p; p = MSACM_UnregisterDriver(p));
 342 }
 343
 344 /***********************************************************************
 345  *           MSACM_GetDriverID32()
 346  */
 347 PWINE_ACMDRIVERID MSACM_GetDriverID(HACMDRIVERID hDriverID)
 348 {
 349     return (PWINE_ACMDRIVERID)hDriverID;
 350 }
 351
 352 /***********************************************************************
 353  *           MSACM_GetDriver32()
 354  */
 355 PWINE_ACMDRIVER MSACM_GetDriver(HACMDRIVER hDriver)
 356 {
 357     return (PWINE_ACMDRIVER)hDriver;
 358 }
 359
 360 /***********************************************************************
 361  *           MSACM_GetObj32()
 362  */
 363 PWINE_ACMOBJ MSACM_GetObj(HACMOBJ hObj)
 364 {
 365     return (PWINE_ACMOBJ)hObj;
 366 }
 367
 368
 369
 370 /***********************************************************************
 371  *           acmStreamOpen (MSACM32.40)
 372  */
 373 MMRESULT WINAPI acmStreamOpen(PHACMSTREAM phas, HACMDRIVER had, PWAVEFORMATEX pwfxSrc,
 374                               PWAVEFORMATEX pwfxDst, PWAVEFILTER pwfltr, DWORD dwCallback,
 375                               DWORD dwInstance, DWORD fdwOpen)
 376 {
 377     PWINE_ACMSTREAM     was;
 378     PWINE_ACMDRIVER     wad;
 379     MMRESULT            ret;
 380     int                 wfxSrcSize;
 381     int                 wfxDstSize;
 382
 383     TRACE("(%p, 0x%08x, %p, %p, %p, %ld, %ld, %ld)\n",
 384           phas, had, pwfxSrc, pwfxDst, pwfltr, dwCallback, dwInstance, fdwOpen);
 385
 386     TRACE("src [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
 387           pwfxSrc->wFormatTag, pwfxSrc->nChannels, pwfxSrc->nSamplesPerSec, pwfxSrc->nAvgBytesPerSec,
 388           pwfxSrc->nBlockAlign, pwfxSrc->wBitsPerSample, pwfxSrc->cbSize);
 389
 390     TRACE("dst [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
 391           pwfxDst->wFormatTag, pwfxDst->nChannels, pwfxDst->nSamplesPerSec, pwfxDst->nAvgBytesPerSec,
 392           pwfxDst->nBlockAlign, pwfxDst->wBitsPerSample, pwfxDst->cbSize);
 393
 394 #define SIZEOF_WFX(wfx) (sizeof(WAVEFORMATEX) + ((wfx->wFormatTag == WAVE_FORMAT_PCM) ? 0 : wfx->cbSize))
 395     wfxSrcSize = SIZEOF_WFX(pwfxSrc);
 396     wfxDstSize = SIZEOF_WFX(pwfxDst);
 397 #undef SIZEOF_WFX
 398
 399     was = (PWINE_ACMSTREAM) HeapAlloc(MSACM_hHeap, 0, sizeof(*was) + wfxSrcSize + wfxDstSize + ((pwfltr) ? sizeof(WAVEFILTER) : 0));
 400     if (was == NULL)
 401         return MMSYSERR_NOMEM;
 402     was->drvInst.cbStruct = sizeof(was->drvInst);
 403     was->drvInst.pwfxSrc = (PWAVEFORMATEX)(was + 1);
 404     memcpy(was->drvInst.pwfxSrc, pwfxSrc, wfxSrcSize);
 405     // LHACM is checking for 0x1
 406     // but if this will not help
 407     // was->drvInst.pwfxSrc->wFormatTag = 1;
 408     was->drvInst.pwfxDst = (PWAVEFORMATEX)((LPSTR)(was + 1) + wfxSrcSize);
 409     memcpy(was->drvInst.pwfxDst, pwfxDst, wfxDstSize);
 410     if (pwfltr) {
 411         was->drvInst.pwfltr = (PWAVEFILTER)((LPSTR)(was + 1) + wfxSrcSize + wfxDstSize);
 412         memcpy(was->drvInst.pwfltr, pwfltr, sizeof(WAVEFILTER));
 413     } else {
 414         was->drvInst.pwfltr = NULL;
 415     }
 416     was->drvInst.dwCallback = dwCallback;
 417     was->drvInst.dwInstance = dwInstance;
 418     was->drvInst.fdwOpen = fdwOpen;
 419     was->drvInst.fdwDriver = 0L;
 420     was->drvInst.dwDriver = 0L;
 421     was->drvInst.has = (HACMSTREAM)was;
 422
 423     if (had) {
 424         if (!(wad = MSACM_GetDriver(had))) {
 425             ret = MMSYSERR_INVALPARAM;
 426             goto errCleanUp;
 427         }
 428
 429         was->obj.pACMDriverID = wad->obj.pACMDriverID;
 430         was->pDrv = wad;
 431         was->hAcmDriver = 0; /* not to close it in acmStreamClose */
 432
 433         ret = SendDriverMessage(wad->hDrvr, ACMDM_STREAM_OPEN, (DWORD)&was->drvInst, 0L);
 434         if (ret != MMSYSERR_NOERROR)
 435             goto errCleanUp;
 436     } else {
 437         PWINE_ACMDRIVERID wadi;
 438         //short drv_tag;
 439         ret = ACMERR_NOTPOSSIBLE;
 440 /*      if(pwfxSrc->wFormatTag==1)//compression
 441             drv_tag=pwfxDst->wFormatTag;
 442             else
 443             if(pwfxDst->wFormatTag==1)//decompression
 444                 drv_tag=pwfxSrc->wFormatTag;
 445                 else
 446                 goto errCleanUp;
 447
 448             ret=acmDriverOpen2(drv_tag);
 449             if (ret == MMSYSERR_NOERROR) {
 450                 if ((wad = MSACM_GetDriver(had)) != 0) {
 451                     was->obj.pACMDriverID = wad->obj.pACMDriverID;
 452                     was->pDrv = wad;
 453                     was->hAcmDriver = had;
 454
 455                     ret = SendDriverMessage(wad->hDrvr, ACMDM_STREAM_OPEN, (DWORD)&was->drvInst, 0L);
 456                     if (ret == MMSYSERR_NOERROR) {
 457                         if (fdwOpen & ACM_STREAMOPENF_QUERY) {
 458                             acmDriverClose(had, 0L);
 459                         }
 460                         break;
 461                     }
 462                 }
 463                 acmDriverClose(had, 0L);*/
 464         //if(MSACM_pFirstACMDriverID==NULL)
 465         //    MSACM_RegisterAllDrivers();
 466
 467         for (wadi = MSACM_pFirstACMDriverID; wadi; wadi = wadi->pNextACMDriverID)
 468         {
 469             /* Check Format */
 470             if ((int)wadi->wFormatTag != (int)pwfxSrc->wFormatTag) continue;
 471
 472             ret = acmDriverOpen(&had, (HACMDRIVERID)wadi, 0L);
 473             if (ret == MMSYSERR_NOERROR) {
 474                 if ((wad = MSACM_GetDriver(had)) != 0) {
 475                     was->obj.pACMDriverID = wad->obj.pACMDriverID;
 476                     was->pDrv = wad;
 477                     was->hAcmDriver = had;
 478
 479                     ret = SendDriverMessage(wad->hDrvr, ACMDM_STREAM_OPEN, (DWORD)&was->drvInst, 0L);
 480                     //lhacm - crash printf("RETOPEN %d\n", ret);
 481                     //ret = 0;
 482                     if (ret == MMSYSERR_NOERROR) {
 483                         if (fdwOpen & ACM_STREAMOPENF_QUERY) {
 484                             acmDriverClose(had, 0L);
 485                         }
 486                         break;
 487                     }
 488                 }
 489                 // no match, close this acm driver and try next one
 490                 acmDriverClose(had, 0L);
 491             }
 492         }
 493         if (ret != MMSYSERR_NOERROR) {
 494             ret = ACMERR_NOTPOSSIBLE;
 495             goto errCleanUp;
 496         }
 497     }
 498     ret = MMSYSERR_NOERROR;
 499     if (!(fdwOpen & ACM_STREAMOPENF_QUERY)) {
 500         if (phas)
 501             *phas = (HACMSTREAM)was;
 502         TRACE("=> (%d)\n", ret);
 503 #ifdef WIN32_LOADER
 504         CodecAlloc();
 505 #endif
 506         return ret;
 507     }
 508 errCleanUp:
 509     if (phas)
 510         *phas = (HACMSTREAM)0;
 511     HeapFree(MSACM_hHeap, 0, was);
 512     TRACE("=> (%d)\n", ret);
 513     return ret;
 514 }
 515
 516
 517 MMRESULT WINAPI acmStreamClose(HACMSTREAM has, DWORD fdwClose)
 518 {
 519     PWINE_ACMSTREAM     was;
 520     MMRESULT            ret;
 521
 522     TRACE("(0x%08x, %ld)\n", has, fdwClose);
 523
 524     if ((was = ACM_GetStream(has)) == NULL) {
 525         return MMSYSERR_INVALHANDLE;
 526     }
 527     ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_CLOSE, (DWORD)&was->drvInst, 0);
 528     if (ret == MMSYSERR_NOERROR) {
 529         if (was->hAcmDriver)
 530             acmDriverClose(was->hAcmDriver, 0L);
 531         HeapFree(MSACM_hHeap, 0, was);
 532 #ifdef WIN32_LOADER
 533         CodecRelease();
 534 #endif
 535     }
 536     TRACE("=> (%d)\n", ret);
 537     return ret;
 538 }
 539
 540 /***********************************************************************
 541  *           acmStreamConvert (MSACM32.38)
 542  */
 543 MMRESULT WINAPI acmStreamConvert(HACMSTREAM has, PACMSTREAMHEADER pash,
 544                                  DWORD fdwConvert)
 545 {
 546     PWINE_ACMSTREAM     was;
 547     MMRESULT            ret = MMSYSERR_NOERROR;
 548     PACMDRVSTREAMHEADER padsh;
 549
 550     TRACE("(0x%08x, %p, %ld)\n", has, pash, fdwConvert);
 551
 552     if ((was = ACM_GetStream(has)) == NULL)
 553         return MMSYSERR_INVALHANDLE;
 554     if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER))
 555         return MMSYSERR_INVALPARAM;
 556
 557     if (!(pash->fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED))
 558         return ACMERR_UNPREPARED;
 559
 560     /* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
 561      * size. some fields are private to msacm internals, and are exposed
 562      * in ACMSTREAMHEADER in the dwReservedDriver array
 563      */
 564     padsh = (PACMDRVSTREAMHEADER)pash;
 565
 566     /* check that pointers have not been modified */
 567     if (padsh->pbPreparedSrc != padsh->pbSrc ||
 568         padsh->cbPreparedSrcLength < padsh->cbSrcLength ||
 569         padsh->pbPreparedDst != padsh->pbDst ||
 570         padsh->cbPreparedDstLength < padsh->cbDstLength) {
 571         return MMSYSERR_INVALPARAM;
 572     }
 573
 574     padsh->fdwConvert = fdwConvert;
 575
 576     ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_CONVERT, (DWORD)&was->drvInst, (DWORD)padsh);
 577     if (ret == MMSYSERR_NOERROR) {
 578         padsh->fdwStatus |= ACMSTREAMHEADER_STATUSF_DONE;
 579     }
 580     TRACE("=> (%d)\n", ret);
 581     return ret;
 582 }
 583
 584
 585 /***********************************************************************
 586  *           acmStreamPrepareHeader (MSACM32.41)
 587  */
 588 MMRESULT WINAPI acmStreamPrepareHeader(HACMSTREAM has, PACMSTREAMHEADER pash,
 589                                        DWORD fdwPrepare)
 590 {
 591     PWINE_ACMSTREAM     was;
 592     MMRESULT            ret = MMSYSERR_NOERROR;
 593     PACMDRVSTREAMHEADER padsh;
 594
 595     TRACE("(0x%08x, %p, %ld)\n", has, pash, fdwPrepare);
 596
 597     if ((was = ACM_GetStream(has)) == NULL)
 598         return MMSYSERR_INVALHANDLE;
 599     if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER))
 600         return MMSYSERR_INVALPARAM;
 601     if (fdwPrepare)
 602         ret = MMSYSERR_INVALFLAG;
 603
 604     if (pash->fdwStatus & ACMSTREAMHEADER_STATUSF_DONE)
 605         return MMSYSERR_NOERROR;
 606
 607     /* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
 608      * size. some fields are private to msacm internals, and are exposed
 609      * in ACMSTREAMHEADER in the dwReservedDriver array
 610      */
 611     padsh = (PACMDRVSTREAMHEADER)pash;
 612
 613     padsh->fdwConvert = fdwPrepare;
 614     padsh->padshNext = NULL;
 615     padsh->fdwDriver = padsh->dwDriver = 0L;
 616
 617     padsh->fdwPrepared = 0;
 618     padsh->dwPrepared = 0;
 619     padsh->pbPreparedSrc = 0;
 620     padsh->cbPreparedSrcLength = 0;
 621     padsh->pbPreparedDst = 0;
 622     padsh->cbPreparedDstLength = 0;
 623
 624     ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_PREPARE, (DWORD)&was->drvInst, (DWORD)padsh);
 625     if (ret == MMSYSERR_NOERROR || ret == MMSYSERR_NOTSUPPORTED) {
 626         ret = MMSYSERR_NOERROR;
 627         padsh->fdwStatus &= ~(ACMSTREAMHEADER_STATUSF_DONE|ACMSTREAMHEADER_STATUSF_INQUEUE);
 628         padsh->fdwStatus |= ACMSTREAMHEADER_STATUSF_PREPARED;
 629         padsh->fdwPrepared = padsh->fdwStatus;
 630         padsh->dwPrepared = 0;
 631         padsh->pbPreparedSrc = padsh->pbSrc;
 632         padsh->cbPreparedSrcLength = padsh->cbSrcLength;
 633         padsh->pbPreparedDst = padsh->pbDst;
 634         padsh->cbPreparedDstLength = padsh->cbDstLength;
 635     } else {
 636         padsh->fdwPrepared = 0;
 637         padsh->dwPrepared = 0;
 638         padsh->pbPreparedSrc = 0;
 639         padsh->cbPreparedSrcLength = 0;
 640         padsh->pbPreparedDst = 0;
 641         padsh->cbPreparedDstLength = 0;
 642     }
 643     TRACE("=> (%d)\n", ret);
 644     return ret;
 645 }
 646
 647 /***********************************************************************
 648  *           acmStreamReset (MSACM32.42)
 649  */
 650 MMRESULT WINAPI acmStreamReset(HACMSTREAM has, DWORD fdwReset)
 651 {
 652     PWINE_ACMSTREAM     was;
 653     MMRESULT            ret = MMSYSERR_NOERROR;
 654
 655     TRACE("(0x%08x, %ld)\n", has, fdwReset);
 656
 657     if (fdwReset) {
 658         ret = MMSYSERR_INVALFLAG;
 659     } else if ((was = ACM_GetStream(has)) == NULL) {
 660         return MMSYSERR_INVALHANDLE;
 661     } else if (was->drvInst.fdwOpen & ACM_STREAMOPENF_ASYNC) {
 662         ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_RESET, (DWORD)&was->drvInst, 0);
 663     }
 664     TRACE("=> (%d)\n", ret);
 665     return ret;
 666 }
 667
 668 /***********************************************************************
 669  *           acmStreamSize (MSACM32.43)
 670  */
 671 MMRESULT WINAPI acmStreamSize(HACMSTREAM has, DWORD cbInput,
 672                               LPDWORD pdwOutputBytes, DWORD fdwSize)
 673 {
 674     PWINE_ACMSTREAM     was;
 675     ACMDRVSTREAMSIZE    adss;
 676     MMRESULT            ret;
 677
 678     TRACE("(0x%08x, %ld, %p, %ld)\n", has, cbInput, pdwOutputBytes, fdwSize);
 679
 680     if ((was = ACM_GetStream(has)) == NULL) {
 681         return MMSYSERR_INVALHANDLE;
 682     }
 683     if ((fdwSize & ~ACM_STREAMSIZEF_QUERYMASK) != 0) {
 684         return MMSYSERR_INVALFLAG;
 685     }
 686
 687     *pdwOutputBytes = 0L;
 688
 689     switch (fdwSize & ACM_STREAMSIZEF_QUERYMASK) {
 690     case ACM_STREAMSIZEF_DESTINATION:
 691         adss.cbDstLength = cbInput;
 692         adss.cbSrcLength = 0;
 693         break;
 694     case ACM_STREAMSIZEF_SOURCE:
 695         adss.cbSrcLength = cbInput;
 696         adss.cbDstLength = 0;
 697         break;
 698     default:
 699         return MMSYSERR_INVALFLAG;
 700     }
 701
 702     adss.cbStruct = sizeof(adss);
 703     adss.fdwSize = fdwSize;
 704     ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_SIZE,
 705                             (DWORD)&was->drvInst, (DWORD)&adss);
 706     if (ret == MMSYSERR_NOERROR) {
 707         switch (fdwSize & ACM_STREAMSIZEF_QUERYMASK) {
 708         case ACM_STREAMSIZEF_DESTINATION:
 709             *pdwOutputBytes = adss.cbSrcLength;
 710             break;
 711         case ACM_STREAMSIZEF_SOURCE:
 712             *pdwOutputBytes = adss.cbDstLength;
 713             break;
 714         }
 715     }
 716     TRACE("=> (%d) [%lu]\n", ret, *pdwOutputBytes);
 717     return ret;
 718 }
 719
 720 /***********************************************************************
 721  *           acmStreamUnprepareHeader (MSACM32.44)
 722  */
 723 MMRESULT WINAPI acmStreamUnprepareHeader(HACMSTREAM has, PACMSTREAMHEADER pash,
 724                                          DWORD fdwUnprepare)
 725 {
 726     PWINE_ACMSTREAM     was;
 727     MMRESULT            ret = MMSYSERR_NOERROR;
 728     PACMDRVSTREAMHEADER padsh;
 729
 730     TRACE("(0x%08x, %p, %ld)\n", has, pash, fdwUnprepare);
 731
 732     if ((was = ACM_GetStream(has)) == NULL)
 733         return MMSYSERR_INVALHANDLE;
 734     if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER))
 735         return MMSYSERR_INVALPARAM;
 736
 737     if (!(pash->fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED))
 738         return ACMERR_UNPREPARED;
 739
 740     /* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
 741      * size. some fields are private to msacm internals, and are exposed
 742      * in ACMSTREAMHEADER in the dwReservedDriver array
 743      */
 744     padsh = (PACMDRVSTREAMHEADER)pash;
 745
 746     /* check that pointers have not been modified */
 747     if (padsh->pbPreparedSrc != padsh->pbSrc ||
 748         padsh->cbPreparedSrcLength < padsh->cbSrcLength ||
 749         padsh->pbPreparedDst != padsh->pbDst ||
 750         padsh->cbPreparedDstLength < padsh->cbDstLength) {
 751         return MMSYSERR_INVALPARAM;
 752     }
 753
 754     padsh->fdwConvert = fdwUnprepare;
 755
 756     ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_UNPREPARE, (DWORD)&was->drvInst, (DWORD)padsh);
 757     if (ret == MMSYSERR_NOERROR || ret == MMSYSERR_NOTSUPPORTED) {
 758         ret = MMSYSERR_NOERROR;
 759         padsh->fdwStatus &= ~(ACMSTREAMHEADER_STATUSF_DONE|ACMSTREAMHEADER_STATUSF_INQUEUE|ACMSTREAMHEADER_STATUSF_PREPARED);
 760     }
 761     TRACE("=> (%d)\n", ret);
 762     return ret;
 763 }