dll/win32/msgsm32.acm/msgsm32.c

   1 /*
   2  * GSM 06.10 codec handling
   3  * Copyright (C) 2009 Maarten Lankhorst
   4  *
   5  * Based on msg711.acm
   6  * Copyright (C) 2002 Eric Pouech
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include <wine/port.h>
  25
  26 #include <assert.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29
  30 #ifdef HAVE_GSM_GSM_H
  31 #include <gsm/gsm.h>
  32 #elif defined(HAVE_GSM_H)
  33 #include <gsm.h>
  34 #endif
  35
  36 #include "windef.h"
  37 #include "winbase.h"
  38 #include "wingdi.h"
  39 #include "winuser.h"
  40 #include "winnls.h"
  41 #include "mmsystem.h"
  42 #include "mmreg.h"
  43 #include "msacm.h"
  44 #include "msacmdrv.h"
  45 #include "wine/library.h"
  46 #include "wine/debug.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(gsm);
  49
  50 #ifdef SONAME_LIBGSM
  51
  52 static void *libgsm_handle;
  53 #define FUNCPTR(f) static typeof(f) * p##f
  54 FUNCPTR(gsm_create);
  55 FUNCPTR(gsm_destroy);
  56 FUNCPTR(gsm_option);
  57 FUNCPTR(gsm_encode);
  58 FUNCPTR(gsm_decode);
  59
  60 #define LOAD_FUNCPTR(f) \
  61     if((p##f = wine_dlsym(libgsm_handle, #f, NULL, 0)) == NULL) { \
  62         wine_dlclose(libgsm_handle, NULL, 0); \
  63         libgsm_handle = NULL; \
  64         return 0; \
  65     }
  66
  67 /***********************************************************************
  68  *           GSM_drvLoad
  69  */
  70 static LRESULT GSM_drvLoad(void)
  71 {
  72     char error[128];
  73
  74     libgsm_handle = wine_dlopen(SONAME_LIBGSM, RTLD_NOW, error, sizeof(error));
  75     if (libgsm_handle)
  76     {
  77         LOAD_FUNCPTR(gsm_create);
  78         LOAD_FUNCPTR(gsm_destroy);
  79         LOAD_FUNCPTR(gsm_option);
  80         LOAD_FUNCPTR(gsm_encode);
  81         LOAD_FUNCPTR(gsm_decode);
  82         return 1;
  83     }
  84     else
  85     {
  86         ERR("Couldn't load " SONAME_LIBGSM ": %s\n", error);
  87         return 0;
  88     }
  89 }
  90
  91 /***********************************************************************
  92  *           GSM_drvFree
  93  */
  94 static LRESULT GSM_drvFree(void)
  95 {
  96     if (libgsm_handle)
  97         wine_dlclose(libgsm_handle, NULL, 0);
  98     return 1;
  99 }
 100
 101 #else
 102
 103 static LRESULT GSM_drvFree(void)
 104 {
 105     return 1;
 106 }
 107
 108 #endif
 109
 110 /***********************************************************************
 111  *           GSM_DriverDetails
 112  *
 113  */
 114 static  LRESULT GSM_DriverDetails(PACMDRIVERDETAILSW add)
 115 {
 116     add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
 117     add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
 118     /* Details found from probing native msgsm32.acm */
 119     add->wMid = MM_MICROSOFT;
 120     add->wPid = 36;
 121     add->vdwACM = 0x3320000;
 122     add->vdwDriver = 0x4000000;
 123     add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 124     add->cFormatTags = 2;
 125     add->cFilterTags = 0;
 126     add->hicon = NULL;
 127     MultiByteToWideChar( CP_ACP, 0, "Wine GSM 6.10", -1,
 128                          add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
 129     MultiByteToWideChar( CP_ACP, 0, "Wine GSM 6.10 libgsm codec", -1,
 130                          add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
 131     MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
 132                          add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
 133     MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
 134                          add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
 135     add->szFeatures[0] = 0;
 136     return MMSYSERR_NOERROR;
 137 }
 138
 139 /* Validate a WAVEFORMATEX structure */
 140 static DWORD GSM_FormatValidate(const WAVEFORMATEX *wfx)
 141 {
 142     if (wfx->nChannels != 1)
 143         return 0;
 144
 145     switch (wfx->wFormatTag)
 146     {
 147     case WAVE_FORMAT_PCM:
 148         if (wfx->wBitsPerSample != 16)
 149         {
 150             WARN("PCM wBitsPerSample %u\n", wfx->wBitsPerSample);
 151             return 0;
 152         }
 153         if (wfx->nBlockAlign != 2)
 154         {
 155             WARN("PCM nBlockAlign %u\n", wfx->nBlockAlign);
 156             return 0;
 157         }
 158         if (wfx->nAvgBytesPerSec != wfx->nBlockAlign * wfx->nSamplesPerSec)
 159         {
 160             WARN("PCM nAvgBytesPerSec %u/%u\n",
 161                  wfx->nAvgBytesPerSec,
 162                  wfx->nBlockAlign * wfx->nSamplesPerSec);
 163             return 0;
 164         }
 165         return 1;
 166     case WAVE_FORMAT_GSM610:
 167         if (wfx->cbSize < sizeof(WORD))
 168         {
 169             WARN("GSM cbSize %u\n", wfx->cbSize);
 170             return 0;
 171         }
 172         if (wfx->wBitsPerSample != 0)
 173         {
 174             WARN("GSM wBitsPerSample %u\n", wfx->wBitsPerSample);
 175             return 0;
 176         }
 177         if (wfx->nBlockAlign != 65)
 178         {
 179             WARN("GSM nBlockAlign %u\n", wfx->nBlockAlign);
 180             return 0;
 181         }
 182         if (((const GSM610WAVEFORMAT*)wfx)->wSamplesPerBlock != 320)
 183         {
 184             WARN("GSM wSamplesPerBlock %u\n",
 185                  ((const GSM610WAVEFORMAT*)wfx)->wSamplesPerBlock);
 186             return 0;
 187         }
 188         if (wfx->nAvgBytesPerSec != wfx->nSamplesPerSec * 65 / 320)
 189         {
 190             WARN("GSM nAvgBytesPerSec %d / %d\n",
 191                  wfx->nAvgBytesPerSec, wfx->nSamplesPerSec * 65 / 320);
 192             return 0;
 193         }
 194         return 1;
 195     default:
 196         return 0;
 197     }
 198     return 0;
 199 }
 200
 201 static const DWORD gsm_rates[] = { 8000, 11025, 22050, 44100, 48000, 96000 };
 202 #define NUM_RATES (sizeof(gsm_rates)/sizeof(*gsm_rates))
 203
 204 /***********************************************************************
 205  *           GSM_FormatTagDetails
 206  *
 207  */
 208 static  LRESULT GSM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
 209 {
 210     static const WCHAR szPcm[]={'P','C','M',0};
 211     static const WCHAR szGsm[]={'G','S','M',' ','6','.','1','0',0};
 212
 213     switch (dwQuery)
 214     {
 215     case ACM_FORMATTAGDETAILSF_INDEX:
 216         if (aftd->dwFormatTagIndex > 1) return ACMERR_NOTPOSSIBLE;
 217         break;
 218     case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
 219         if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
 220         {
 221             aftd->dwFormatTagIndex = 1;
 222             break;
 223         }
 224         /* fall thru */
 225     case ACM_FORMATTAGDETAILSF_FORMATTAG:
 226         switch (aftd->dwFormatTag)
 227         {
 228         case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
 229         case WAVE_FORMAT_GSM610: aftd->dwFormatTagIndex = 1; break;
 230         default: return ACMERR_NOTPOSSIBLE;
 231         }
 232         break;
 233     default:
 234         WARN("Unsupported query %08x\n", dwQuery);
 235         return MMSYSERR_NOTSUPPORTED;
 236     }
 237
 238     aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 239     switch (aftd->dwFormatTagIndex)
 240     {
 241     case 0:
 242         aftd->dwFormatTag = WAVE_FORMAT_PCM;
 243         aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
 244         aftd->cStandardFormats = NUM_RATES;
 245         lstrcpyW(aftd->szFormatTag, szPcm);
 246         break;
 247     case 1:
 248         aftd->dwFormatTag = WAVE_FORMAT_GSM610;
 249         aftd->cbFormatSize = sizeof(GSM610WAVEFORMAT);
 250         aftd->cStandardFormats = NUM_RATES;
 251         lstrcpyW(aftd->szFormatTag, szGsm);
 252         break;
 253     }
 254     return MMSYSERR_NOERROR;
 255 }
 256
 257 /***********************************************************************
 258  *           GSM_FormatDetails
 259  *
 260  */
 261 static  LRESULT GSM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
 262 {
 263     switch (dwQuery)
 264     {
 265     case ACM_FORMATDETAILSF_FORMAT:
 266         if (!GSM_FormatValidate(afd->pwfx)) return ACMERR_NOTPOSSIBLE;
 267         break;
 268     case ACM_FORMATDETAILSF_INDEX:
 269         afd->pwfx->wFormatTag = afd->dwFormatTag;
 270         switch (afd->dwFormatTag)
 271         {
 272         case WAVE_FORMAT_PCM:
 273             if (afd->dwFormatIndex >= NUM_RATES) return ACMERR_NOTPOSSIBLE;
 274             afd->pwfx->nChannels = 1;
 275             afd->pwfx->nSamplesPerSec = gsm_rates[afd->dwFormatIndex];
 276             afd->pwfx->wBitsPerSample = 16;
 277             afd->pwfx->nBlockAlign = 2;
 278             afd->pwfx->nAvgBytesPerSec = afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
 279             break;
 280         case WAVE_FORMAT_GSM610:
 281             if (afd->dwFormatIndex >= NUM_RATES) return ACMERR_NOTPOSSIBLE;
 282             afd->pwfx->nChannels = 1;
 283             afd->pwfx->nSamplesPerSec = gsm_rates[afd->dwFormatIndex];
 284             afd->pwfx->wBitsPerSample = 0;
 285             afd->pwfx->nBlockAlign = 65;
 286             afd->pwfx->nAvgBytesPerSec = afd->pwfx->nSamplesPerSec * 65 / 320;
 287             afd->pwfx->cbSize = sizeof(WORD);
 288             ((GSM610WAVEFORMAT*)afd->pwfx)->wSamplesPerBlock = 320;
 289             break;
 290         default:
 291             WARN("Unsupported tag %08x\n", afd->dwFormatTag);
 292             return MMSYSERR_INVALPARAM;
 293         }
 294         break;
 295     default:
 296         WARN("Unsupported query %08x\n", dwQuery);
 297         return MMSYSERR_NOTSUPPORTED;
 298     }
 299     afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 300     afd->szFormat[0] = 0; /* let MSACM format this for us... */
 301
 302     return MMSYSERR_NOERROR;
 303 }
 304
 305 /***********************************************************************
 306  *           GSM_FormatSuggest
 307  *
 308  */
 309 static  LRESULT GSM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
 310 {
 311     /* some tests ... */
 312     if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
 313         adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
 314         !GSM_FormatValidate(adfs->pwfxSrc)) return ACMERR_NOTPOSSIBLE;
 315     /* FIXME: should do those tests against the real size (according to format tag */
 316
 317     /* If no suggestion for destination, then copy source value */
 318     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
 319         adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
 320     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
 321         adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
 322
 323     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
 324     {
 325         if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
 326             adfs->pwfxDst->wBitsPerSample = 0;
 327         else
 328             adfs->pwfxDst->wBitsPerSample = 16;
 329     }
 330     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
 331     {
 332         switch (adfs->pwfxSrc->wFormatTag)
 333         {
 334         case WAVE_FORMAT_PCM: adfs->pwfxDst->wFormatTag = WAVE_FORMAT_GSM610; break;
 335         case WAVE_FORMAT_GSM610: adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM; break;
 336         }
 337     }
 338
 339     /* recompute other values */
 340     switch (adfs->pwfxDst->wFormatTag)
 341     {
 342     case WAVE_FORMAT_PCM:
 343         adfs->pwfxDst->nBlockAlign = 2;
 344         adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * 2;
 345         break;
 346     case WAVE_FORMAT_GSM610:
 347         if (adfs->pwfxDst->cbSize < sizeof(WORD))
 348             return ACMERR_NOTPOSSIBLE;
 349         adfs->pwfxDst->nBlockAlign = 65;
 350         adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * 65 / 320;
 351         ((GSM610WAVEFORMAT*)adfs->pwfxDst)->wSamplesPerBlock = 320;
 352         break;
 353     default:
 354         return ACMERR_NOTPOSSIBLE;
 355     }
 356
 357     /* check if result is ok */
 358     if (!GSM_FormatValidate(adfs->pwfxDst)) return ACMERR_NOTPOSSIBLE;
 359     return MMSYSERR_NOERROR;
 360 }
 361
 362 #ifdef SONAME_LIBGSM
 363 /***********************************************************************
 364  *           GSM_StreamOpen
 365  *
 366  */
 367 static  LRESULT GSM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
 368 {
 369     int used = 1;
 370     gsm r;
 371     if (!GSM_FormatValidate(adsi->pwfxSrc) || !GSM_FormatValidate(adsi->pwfxDst))
 372         return MMSYSERR_NOTSUPPORTED;
 373
 374     if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec)
 375         return MMSYSERR_NOTSUPPORTED;
 376
 377     if (!GSM_drvLoad()) return MMSYSERR_NOTSUPPORTED;
 378
 379     r = pgsm_create();
 380     if (!r)
 381         return MMSYSERR_NOMEM;
 382     if (pgsm_option(r, GSM_OPT_WAV49, &used) < 0)
 383     {
 384         FIXME("Your libgsm library doesn't support GSM_OPT_WAV49\n");
 385         FIXME("Please recompile libgsm with WAV49 support\n");
 386         pgsm_destroy(r);
 387         return MMSYSERR_NOTSUPPORTED;
 388     }
 389     adsi->dwDriver = (DWORD_PTR)r;
 390     return MMSYSERR_NOERROR;
 391 }
 392
 393 /***********************************************************************
 394  *           GSM_StreamClose
 395  *
 396  */
 397 static  LRESULT GSM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
 398 {
 399     pgsm_destroy((gsm)adsi->dwDriver);
 400     return MMSYSERR_NOERROR;
 401 }
 402
 403 /***********************************************************************
 404  *           GSM_StreamSize
 405  *
 406  */
 407 static  LRESULT GSM_StreamSize(const ACMDRVSTREAMINSTANCE *adsi, PACMDRVSTREAMSIZE adss)
 408 {
 409     switch (adss->fdwSize)
 410     {
 411     case ACM_STREAMSIZEF_DESTINATION:
 412         /* cbDstLength => cbSrcLength */
 413         if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 414              adsi->pwfxDst->wFormatTag == WAVE_FORMAT_GSM610)
 415         {
 416             adss->cbSrcLength = adss->cbDstLength / 65 * 640;
 417         }
 418         else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_GSM610 &&
 419                  adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 420         {
 421             adss->cbSrcLength = adss->cbDstLength / 640 * 65;
 422         }
 423         else
 424         {
 425             return MMSYSERR_NOTSUPPORTED;
 426         }
 427         return MMSYSERR_NOERROR;
 428     case ACM_STREAMSIZEF_SOURCE:
 429         /* cbSrcLength => cbDstLength */
 430         if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 431              adsi->pwfxDst->wFormatTag == WAVE_FORMAT_GSM610)
 432         {
 433             adss->cbDstLength = (adss->cbSrcLength + 639) / 640 * 65;
 434         }
 435         else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_GSM610 &&
 436                  adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 437         {
 438             adss->cbDstLength = adss->cbSrcLength / 65 * 640;
 439         }
 440         else
 441         {
 442             return MMSYSERR_NOTSUPPORTED;
 443         }
 444         return MMSYSERR_NOERROR;
 445     default:
 446         WARN("Unsupported query %08x\n", adss->fdwSize);
 447         return MMSYSERR_NOTSUPPORTED;
 448     }
 449 }
 450
 451 /***********************************************************************
 452  *           GSM_StreamConvert
 453  *
 454  */
 455 static LRESULT GSM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
 456 {
 457     gsm r = (gsm)adsi->dwDriver;
 458     DWORD nsrc = 0;
 459     DWORD ndst = 0;
 460     BYTE *src = adsh->pbSrc;
 461     BYTE *dst = adsh->pbDst;
 462     int odd = 0;
 463
 464     if (adsh->fdwConvert &
 465         ~(ACM_STREAMCONVERTF_BLOCKALIGN|
 466           ACM_STREAMCONVERTF_END|
 467           ACM_STREAMCONVERTF_START))
 468     {
 469         FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
 470     }
 471
 472     /* Reset the index to 0, just to be sure */
 473     pgsm_option(r, GSM_OPT_FRAME_INDEX, &odd);
 474
 475     /* The native ms codec writes 65 bytes, and this requires 2 libgsm calls.
 476      * First 32 bytes are written, or 33 bytes read
 477      * Second 33 bytes are written, or 32 bytes read
 478      */
 479
 480     /* Decode */
 481     if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_GSM610)
 482     {
 483         if (adsh->cbSrcLength / 65 * 640 > adsh->cbDstLength)
 484         {
 485              return ACMERR_NOTPOSSIBLE;
 486         }
 487
 488         while (nsrc + 65 <= adsh->cbSrcLength)
 489         {
 490             /* Decode data */
 491             if (pgsm_decode(r, src + nsrc, (gsm_signal*)(dst + ndst)) < 0)
 492                 FIXME("Couldn't decode data\n");
 493             ndst += 320;
 494             nsrc += 33;
 495
 496             if (pgsm_decode(r, src + nsrc, (gsm_signal*)(dst + ndst)) < 0)
 497                 FIXME("Couldn't decode data\n");
 498             ndst += 320;
 499             nsrc += 32;
 500         }
 501     }
 502     else
 503     {
 504         /* Testing a little seems to reveal that despite being able to fit
 505          * inside the buffer if ACM_STREAMCONVERTF_BLOCKALIGN is set
 506          * it still rounds up
 507          */
 508         if ((adsh->cbSrcLength + 639) / 640 * 65 > adsh->cbDstLength)
 509         {
 510             return ACMERR_NOTPOSSIBLE;
 511         }
 512
 513         /* The packing algorythm writes 32 bytes, then 33 bytes,
 514          * and it seems to pad to align to 65 bytes always
 515          * adding extra data where necessary
 516          */
 517         while (nsrc + 640 <= adsh->cbSrcLength)
 518         {
 519             /* Encode data */
 520             pgsm_encode(r, (gsm_signal*)(src+nsrc), dst+ndst);
 521             nsrc += 320;
 522             ndst += 32;
 523             pgsm_encode(r, (gsm_signal*)(src+nsrc), dst+ndst);
 524             nsrc += 320;
 525             ndst += 33;
 526         }
 527
 528         /* If ACM_STREAMCONVERTF_BLOCKALIGN isn't set pad with zeros */
 529         if (!(adsh->fdwConvert & ACM_STREAMCONVERTF_BLOCKALIGN) &&
 530             nsrc < adsh->cbSrcLength)
 531         {
 532             char emptiness[320];
 533             int todo = adsh->cbSrcLength - nsrc;
 534
 535             if (todo > 320)
 536             {
 537                 pgsm_encode(r, (gsm_signal*)(src+nsrc), dst+ndst);
 538                 ndst += 32;
 539                 todo -= 320;
 540                 nsrc += 320;
 541
 542                 memcpy(emptiness, src+nsrc, todo);
 543                 memset(emptiness + todo, 0, 320 - todo);
 544                 pgsm_encode(r, (gsm_signal*)emptiness, dst+ndst);
 545                 ndst += 33;
 546             }
 547             else
 548             {
 549                 memcpy(emptiness, src+nsrc, todo);
 550                 memset(emptiness + todo, 0, 320 - todo);
 551                 pgsm_encode(r, (gsm_signal*)emptiness, dst+ndst);
 552                 ndst += 32;
 553
 554                 memset(emptiness, 0, todo);
 555                 pgsm_encode(r, (gsm_signal*)emptiness, dst+ndst);
 556                 ndst += 33;
 557             }
 558             nsrc = adsh->cbSrcLength;
 559         }
 560     }
 561
 562     adsh->cbSrcLengthUsed = nsrc;
 563     adsh->cbDstLengthUsed = ndst;
 564     TRACE("%d(%d) -> %d(%d)\n", nsrc, adsh->cbSrcLength, ndst, adsh->cbDstLength);
 565     return MMSYSERR_NOERROR;
 566 }
 567
 568 #endif
 569
 570 /**************************************************************************
 571  *                      GSM_DriverProc                  [exported]
 572  */
 573 LRESULT CALLBACK GSM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
 574                                          LPARAM dwParam1, LPARAM dwParam2)
 575 {
 576     TRACE("(%08lx %p %04x %08lx %08lx);\n",
 577           dwDevID, hDriv, wMsg, dwParam1, dwParam2);
 578
 579     switch (wMsg)
 580     {
 581     case DRV_LOAD:              return 1;
 582     case DRV_FREE:              return GSM_drvFree();
 583     case DRV_OPEN:              return 1;
 584     case DRV_CLOSE:             return 1;
 585     case DRV_ENABLE:            return 1;
 586     case DRV_DISABLE:           return 1;
 587     case DRV_QUERYCONFIGURE:    return 1;
 588     case DRV_CONFIGURE:         MessageBoxA(0, "GSM 06.10 codec", "Wine Driver", MB_OK); return 1;
 589     case DRV_INSTALL:           return DRVCNF_RESTART;
 590     case DRV_REMOVE:            return DRVCNF_RESTART;
 591
 592     case ACMDM_DRIVER_NOTIFY:
 593         /* no caching from other ACM drivers is done so far */
 594         return MMSYSERR_NOERROR;
 595
 596     case ACMDM_DRIVER_DETAILS:
 597         return GSM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
 598
 599     case ACMDM_FORMATTAG_DETAILS:
 600         return GSM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
 601
 602     case ACMDM_FORMAT_DETAILS:
 603         return GSM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
 604
 605     case ACMDM_FORMAT_SUGGEST:
 606         return GSM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
 607
 608 #ifdef SONAME_LIBGSM
 609     case ACMDM_STREAM_OPEN:
 610         return GSM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
 611
 612     case ACMDM_STREAM_CLOSE:
 613         return GSM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
 614
 615     case ACMDM_STREAM_SIZE:
 616         return GSM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
 617
 618     case ACMDM_STREAM_CONVERT:
 619         return GSM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
 620 #else
 621     case ACMDM_STREAM_OPEN: ERR("libgsm support not compiled in!\n");
 622     case ACMDM_STREAM_CLOSE:
 623     case ACMDM_STREAM_SIZE:
 624     case ACMDM_STREAM_CONVERT:
 625         return MMSYSERR_NOTSUPPORTED;
 626 #endif
 627
 628     case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
 629     case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
 630         /* this converter is not a hardware driver */
 631     case ACMDM_FILTERTAG_DETAILS:
 632     case ACMDM_FILTER_DETAILS:
 633         /* this converter is not a filter */
 634     case ACMDM_STREAM_RESET:
 635         /* only needed for asynchronous driver... we aren't, so just say it */
 636         return MMSYSERR_NOTSUPPORTED;
 637     case ACMDM_STREAM_PREPARE:
 638     case ACMDM_STREAM_UNPREPARE:
 639         /* nothing special to do here... so don't do anything */
 640         return MMSYSERR_NOERROR;
 641
 642     default:
 643         return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
 644     }
 645 }