dlls/midimap/midimap.c

   1 /*
   2  * Wine MIDI mapper driver
   3  *
   4  * Copyright    1999, 2000, 2001 Eric Pouech
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * TODO:
  21  *      notification has to be implemented
  22  *      IDF file loading
  23  */
  24
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31 #include "winuser.h"
  32 #include "mmddk.h"
  33 #include "winreg.h"
  34 #include "wine/unicode.h"
  35 #include "wine/debug.h"
  36
  37 /*
  38  * Here's how Windows stores the midiOut mapping information.
  39  *
  40  * Full form (in HKU) is:
  41  *
  42  * [Software\\Microsoft\\Windows\\CurrentVersion\\Multimedia\\MIDIMap] 988836060
  43  * "AutoScheme"=dword:00000000
  44  * "ConfigureCount"=dword:00000004
  45  * "CurrentInstrument"="Wine OSS midi"
  46  * "CurrentScheme"="epp"
  47  * "DriverList"=""
  48  * "UseScheme"=dword:00000000
  49  *
  50  * AutoScheme:          ?
  51  * CurrentInstrument:   name of midiOut device to use when UseScheme is 0. Wine uses an extension
  52  *                      of the form #n to link to n'th midiOut device of the system
  53  * CurrentScheme:       when UseScheme is non null, it's the scheme to use (see below)
  54  * DriverList:          ?
  55  * UseScheme:           trigger for simple/complex mapping
  56  *
  57  * A scheme is defined (in HKLM) as:
  58  *
  59  * [System\\CurrentControlSet\\Control\\MediaProperties\\PrivateProperties\\Midi\\Schemes\\<nameScheme>]
  60  * <nameScheme>:        one key for each defined scheme (system wide)
  61  * under each one of these <nameScheme> keys, there's:
  62  * [...\\<nameScheme>\\<idxDevice>]
  63  * "Channels"="<bitMask>"
  64  * (the default value of this key also refers to the name of the device).
  65  *
  66  * this defines, for each midiOut device (identified by its index in <idxDevice>), which
  67  * channels have to be mapped onto it. The <bitMask> defines the channels (from 0 to 15)
  68  * will be mapped (mapping occurs for channel <ch> if bit <ch> is set in <bitMask>
  69  *
  70  * Further mapping information can also be defined in:
  71  * [System\\CurrentControlSet\\Control\\MediaProperties\\PrivateProperties\\Midi\\Ports\\<nameDevice>\\Instruments\\<idx>]
  72  * "Definition"="<.idf file>"
  73  * "FriendlyName"="#for .idx file#"
  74  * "Port"="<idxPort>"
  75  *
  76  * This last part isn't implemented (.idf file support).
  77  */
  78
  79 WINE_DEFAULT_DEBUG_CHANNEL(msacm);
  80 WINE_DECLARE_DEBUG_CHANNEL(winediag);
  81
  82 typedef struct tagMIDIOUTPORT
  83 {
  84     WCHAR               name[MAXPNAMELEN];
  85     int                 loaded;
  86     HMIDIOUT            hMidi;
  87     unsigned short      uDevID;
  88     LPBYTE              lpbPatch;
  89     unsigned int        aChn[16];
  90 } MIDIOUTPORT;
  91
  92 typedef struct tagMIDIMAPDATA
  93 {
  94     struct tagMIDIMAPDATA*      self;
  95     MIDIOUTPORT*        ChannelMap[16];
  96     MIDIOPENDESC        midiDesc;
  97     WORD                wCbFlags;
  98 } MIDIMAPDATA;
  99
 100 static  MIDIOUTPORT*    midiOutPorts;
 101 static  unsigned        numMidiOutPorts;
 102
 103 static  BOOL    MIDIMAP_IsBadData(MIDIMAPDATA* mm)
 104 {
 105     if (!IsBadReadPtr(mm, sizeof(MIDIMAPDATA)) && mm->self == mm)
 106         return FALSE;
 107     TRACE("Bad midimap data (%p)\n", mm);
 108     return TRUE;
 109 }
 110
 111 static BOOL     MIDIMAP_FindPort(const WCHAR* name, unsigned* dev)
 112 {
 113     for (*dev = 0; *dev < numMidiOutPorts; (*dev)++)
 114     {
 115         TRACE("%s\n", wine_dbgstr_w(midiOutPorts[*dev].name));
 116         if (strcmpW(midiOutPorts[*dev].name, name) == 0)
 117             return TRUE;
 118     }
 119     /* try the form #nnn */
 120     if (*name == '#' && name[1] >= '0' && name[1] <= '9')
 121     {
 122         const WCHAR*  ptr = name + 1;
 123         *dev = 0;
 124         do
 125         {
 126             *dev = *dev * 10 + *ptr - '0';
 127             ptr++;
 128         } while (*ptr >= '0' && *ptr <= '9');
 129         if (*dev < numMidiOutPorts)
 130             return TRUE;
 131     }
 132     return FALSE;
 133 }
 134
 135 static BOOL     MIDIMAP_LoadSettingsDefault(MIDIMAPDATA* mom, const WCHAR* port)
 136 {
 137     unsigned i, dev = 0;
 138
 139     if (port != NULL && !MIDIMAP_FindPort(port, &dev))
 140     {
 141         ERR("Registry glitch: couldn't find midi out (%s)\n", wine_dbgstr_w(port));
 142         dev = 0;
 143     }
 144
 145     /* this is necessary when no midi out ports are present */
 146     if (dev >= numMidiOutPorts)
 147         return FALSE;
 148     /* sets default */
 149     for (i = 0; i < 16; i++) mom->ChannelMap[i] = &midiOutPorts[dev];
 150
 151     return TRUE;
 152 }
 153
 154 static BOOL     MIDIMAP_LoadSettingsScheme(MIDIMAPDATA* mom, const WCHAR* scheme)
 155 {
 156     HKEY        hSchemesKey, hKey, hPortKey;
 157     unsigned    i, idx, dev;
 158     WCHAR       buffer[256], port[256];
 159     DWORD       type, size, mask;
 160
 161     for (i = 0; i < 16; i++)    mom->ChannelMap[i] = NULL;
 162
 163     if (RegOpenKeyA(HKEY_LOCAL_MACHINE,
 164                     "System\\CurrentControlSet\\Control\\MediaProperties\\PrivateProperties\\Midi\\Schemes",
 165                     &hSchemesKey))
 166     {
 167         return FALSE;
 168     }
 169     if (RegOpenKeyW(hSchemesKey, scheme, &hKey))
 170     {
 171         RegCloseKey(hSchemesKey);
 172         return FALSE;
 173     }
 174
 175     for (idx = 0; !RegEnumKeyW(hKey, idx, buffer, sizeof(buffer)/sizeof(buffer[0])); idx++)
 176     {
 177         if (RegOpenKeyW(hKey, buffer, &hPortKey)) continue;
 178
 179         size = sizeof(port);
 180         if (RegQueryValueExW(hPortKey, NULL, 0, &type, (void*)port, &size)) continue;
 181
 182         if (!MIDIMAP_FindPort(port, &dev)) continue;
 183
 184         size = sizeof(mask);
 185         if (RegQueryValueExA(hPortKey, "Channels", 0, &type, (void*)&mask, &size))
 186             continue;
 187
 188         for (i = 0; i < 16; i++)
 189         {
 190             if (mask & (1 << i))
 191             {
 192                 if (mom->ChannelMap[i])
 193                     ERR("Quirks in registry, channel %u is mapped twice\n", i);
 194                 mom->ChannelMap[i] = &midiOutPorts[dev];
 195             }
 196         }
 197     }
 198
 199     RegCloseKey(hSchemesKey);
 200     RegCloseKey(hKey);
 201
 202     return TRUE;
 203 }
 204
 205 static BOOL     MIDIMAP_LoadSettings(MIDIMAPDATA* mom)
 206 {
 207     HKEY        hKey;
 208     BOOL        ret;
 209
 210     if (RegOpenKeyA(HKEY_CURRENT_USER,
 211                     "Software\\Microsoft\\Windows\\CurrentVersion\\Multimedia\\MIDIMap", &hKey))
 212     {
 213         ret = MIDIMAP_LoadSettingsDefault(mom, NULL);
 214     }
 215     else
 216     {
 217         DWORD   type, size, out;
 218         WCHAR   buffer[256];
 219
 220         ret = 2;
 221         size = sizeof(out);
 222         if (!RegQueryValueExA(hKey, "UseScheme", 0, &type, (void*)&out, &size) && out)
 223         {
 224             static const WCHAR cs[] = {'C','u','r','r','e','n','t','S','c','h','e','m','e',0};
 225             size = sizeof(buffer);
 226             if (!RegQueryValueExW(hKey, cs, 0, &type, (void*)buffer, &size))
 227             {
 228                 if (!(ret = MIDIMAP_LoadSettingsScheme(mom, buffer)))
 229                     ret = MIDIMAP_LoadSettingsDefault(mom, NULL);
 230             }
 231             else
 232             {
 233                 ERR("Wrong registry: UseScheme is active, but no CurrentScheme found\n");
 234             }
 235         }
 236         if (ret == 2)
 237         {
 238             static const WCHAR ci[] = {'C','u','r','r','e','n','t','I','n','s','t','r','u','m','e','n','t',0};
 239             size = sizeof(buffer);
 240             if (!RegQueryValueExW(hKey, ci, 0, &type, (void*)buffer, &size) && *buffer)
 241             {
 242                 ret = MIDIMAP_LoadSettingsDefault(mom, buffer);
 243             }
 244             else
 245             {
 246                 ret = MIDIMAP_LoadSettingsDefault(mom, NULL);
 247             }
 248         }
 249     }
 250     RegCloseKey(hKey);
 251
 252     if (ret && TRACE_ON(msacm))
 253     {
 254         unsigned        i;
 255
 256         for (i = 0; i < 16; i++)
 257         {
 258             TRACE("chnMap[%2d] => %d\n",
 259                   i, mom->ChannelMap[i] ? mom->ChannelMap[i]->uDevID : -1);
 260         }
 261     }
 262     return ret;
 263 }
 264
 265 static void MIDIMAP_NotifyClient(MIDIMAPDATA* mom, WORD wMsg,
 266                                  DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 267 {
 268     DriverCallback(mom->midiDesc.dwCallback, mom->wCbFlags, (HDRVR)mom->midiDesc.hMidi,
 269                    wMsg, mom->midiDesc.dwInstance, dwParam1, dwParam2);
 270 }
 271
 272 static DWORD modOpen(DWORD_PTR *lpdwUser, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
 273 {
 274     MIDIMAPDATA*        mom = HeapAlloc(GetProcessHeap(), 0, sizeof(MIDIMAPDATA));
 275
 276     TRACE("(%p %p %08x)\n", lpdwUser, lpDesc, dwFlags);
 277
 278     if (!mom) return MMSYSERR_NOMEM;
 279     if (!lpDesc) {
 280         HeapFree(GetProcessHeap(), 0, mom);
 281         return MMSYSERR_INVALPARAM;
 282     }
 283
 284     if (MIDIMAP_LoadSettings(mom))
 285     {
 286         *lpdwUser = (DWORD_PTR)mom;
 287         mom->self = mom;
 288
 289         mom->wCbFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 290         mom->midiDesc = *lpDesc;
 291         MIDIMAP_NotifyClient(mom, MOM_OPEN, 0L, 0L);
 292
 293         return MMSYSERR_NOERROR;
 294     }
 295     HeapFree(GetProcessHeap(), 0, mom);
 296     return MIDIERR_INVALIDSETUP;
 297 }
 298
 299 static  DWORD   modClose(MIDIMAPDATA* mom)
 300 {
 301     UINT        i;
 302     DWORD       ret = MMSYSERR_NOERROR;
 303
 304     if (MIDIMAP_IsBadData(mom))         return MMSYSERR_ERROR;
 305
 306     for (i = 0; i < 16; i++)
 307     {
 308         DWORD   t;
 309         if (mom->ChannelMap[i] && mom->ChannelMap[i]->loaded > 0)
 310         {
 311             t = midiOutClose(mom->ChannelMap[i]->hMidi);
 312             if (t == MMSYSERR_NOERROR)
 313             {
 314                 mom->ChannelMap[i]->loaded = 0;
 315                 mom->ChannelMap[i]->hMidi = 0;
 316             }
 317             else if (ret == MMSYSERR_NOERROR)
 318                 ret = t;
 319         }
 320     }
 321     if (ret == MMSYSERR_NOERROR) {
 322         MIDIMAP_NotifyClient(mom, MOM_CLOSE, 0L, 0L);
 323         HeapFree(GetProcessHeap(), 0, mom);
 324     }
 325     return ret;
 326 }
 327
 328 static DWORD modLongData(MIDIMAPDATA* mom, LPMIDIHDR lpMidiHdr, DWORD_PTR dwParam2)
 329 {
 330     WORD        chn;
 331     DWORD       ret = MMSYSERR_NOERROR;
 332     MIDIHDR     mh;
 333
 334     if (MIDIMAP_IsBadData(mom))
 335         return MMSYSERR_ERROR;
 336     if (!(lpMidiHdr->dwFlags & MHDR_PREPARED))
 337         return MIDIERR_UNPREPARED;
 338     if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
 339         return MIDIERR_STILLPLAYING;
 340
 341     mh = *lpMidiHdr;
 342     lpMidiHdr->dwFlags &= ~MHDR_DONE;
 343     lpMidiHdr->dwFlags |= MHDR_INQUEUE;
 344     for (chn = 0; chn < 16; chn++)
 345     {
 346         if (mom->ChannelMap[chn] && mom->ChannelMap[chn]->loaded > 0)
 347         {
 348             mh.dwFlags = 0;
 349             midiOutPrepareHeader(mom->ChannelMap[chn]->hMidi, &mh, sizeof(mh));
 350             ret = midiOutLongMsg(mom->ChannelMap[chn]->hMidi, &mh, sizeof(mh));
 351             /* As of 2009, wineXYZ.drv's LongData handlers are synchronous */
 352             if (!ret && !(mh.dwFlags & MHDR_DONE))
 353                 FIXME("wait until MHDR_DONE\n");
 354             midiOutUnprepareHeader(mom->ChannelMap[chn]->hMidi, &mh, sizeof(mh));
 355             if (ret != MMSYSERR_NOERROR) break;
 356         }
 357     }
 358     lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
 359     lpMidiHdr->dwFlags |= MHDR_DONE;
 360     MIDIMAP_NotifyClient(mom, MOM_DONE, (DWORD_PTR)lpMidiHdr, 0L);
 361     return ret;
 362 }
 363
 364 static DWORD modData(MIDIMAPDATA* mom, DWORD_PTR dwParam)
 365 {
 366     BYTE        lb = LOBYTE(LOWORD(dwParam));
 367     WORD        chn = lb & 0x0F;
 368     DWORD       ret = MMSYSERR_NOERROR;
 369
 370     if (MIDIMAP_IsBadData(mom))
 371         return MMSYSERR_ERROR;
 372
 373     if (!mom->ChannelMap[chn]) return MMSYSERR_NOERROR;
 374
 375     switch (lb & 0xF0)
 376     {
 377     case 0x80:
 378     case 0x90:
 379     case 0xA0:
 380     case 0xB0:
 381     case 0xC0:
 382     case 0xD0:
 383     case 0xE0:
 384         if (mom->ChannelMap[chn]->loaded == 0)
 385         {
 386             if (midiOutOpen(&mom->ChannelMap[chn]->hMidi, mom->ChannelMap[chn]->uDevID,
 387                             0L, 0L, CALLBACK_NULL) == MMSYSERR_NOERROR)
 388                 mom->ChannelMap[chn]->loaded = 1;
 389             else
 390                 mom->ChannelMap[chn]->loaded = -1;
 391             /* FIXME: should load here the IDF midi data... and allow channel and
 392              * patch mappings
 393              */
 394         }
 395         if (mom->ChannelMap[chn]->loaded > 0)
 396         {
 397             /* change channel */
 398             dwParam &= ~0x0F;
 399             dwParam |= mom->ChannelMap[chn]->aChn[chn];
 400
 401             if ((LOBYTE(LOWORD(dwParam)) & 0xF0) == 0xC0 /* program change */ &&
 402                 mom->ChannelMap[chn]->lpbPatch)
 403             {
 404                 BYTE patch = HIBYTE(LOWORD(dwParam));
 405
 406                 /* change patch */
 407                 dwParam &= ~0x0000FF00;
 408                 dwParam |= mom->ChannelMap[chn]->lpbPatch[patch];
 409             }
 410             ret = midiOutShortMsg(mom->ChannelMap[chn]->hMidi, dwParam);
 411         }
 412         break;
 413     case 0xF0:
 414         for (chn = 0; chn < 16; chn++)
 415         {
 416             if (mom->ChannelMap[chn]->loaded > 0)
 417                 ret = midiOutShortMsg(mom->ChannelMap[chn]->hMidi, dwParam);
 418         }
 419         break;
 420     default:
 421         FIXME("ooch %lx\n", dwParam);
 422     }
 423
 424     return ret;
 425 }
 426
 427 static DWORD modPrepare(MIDIMAPDATA* mom, LPMIDIHDR lpMidiHdr, DWORD_PTR dwSize)
 428 {
 429     if (MIDIMAP_IsBadData(mom)) return MMSYSERR_ERROR;
 430     if (dwSize < offsetof(MIDIHDR,dwOffset) || lpMidiHdr == 0 || lpMidiHdr->lpData == 0)
 431         return MMSYSERR_INVALPARAM;
 432     if (lpMidiHdr->dwFlags & MHDR_PREPARED)
 433         return MMSYSERR_NOERROR;
 434
 435     lpMidiHdr->dwFlags |= MHDR_PREPARED;
 436     lpMidiHdr->dwFlags &= ~(MHDR_DONE|MHDR_INQUEUE); /* flags cleared since w2k */
 437     return MMSYSERR_NOERROR;
 438 }
 439
 440 static DWORD modUnprepare(MIDIMAPDATA* mom, LPMIDIHDR lpMidiHdr, DWORD_PTR dwSize)
 441 {
 442     if (MIDIMAP_IsBadData(mom)) return MMSYSERR_ERROR;
 443     if (dwSize < offsetof(MIDIHDR,dwOffset) || lpMidiHdr == 0 || lpMidiHdr->lpData == 0)
 444         return MMSYSERR_INVALPARAM;
 445     if (!(lpMidiHdr->dwFlags & MHDR_PREPARED))
 446         return MMSYSERR_NOERROR;
 447     if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
 448         return MIDIERR_STILLPLAYING;
 449
 450     lpMidiHdr->dwFlags &= ~MHDR_PREPARED;
 451     return MMSYSERR_NOERROR;
 452 }
 453
 454 static DWORD modGetVolume(MIDIMAPDATA* mom, DWORD* lpdwVolume)
 455 {
 456     if (!lpdwVolume) return MMSYSERR_INVALPARAM;
 457     *lpdwVolume = 0xFFFFFFFF; /* tests show this initial value */
 458     return MMSYSERR_NOERROR;
 459 }
 460
 461 static DWORD modSetVolume(MIDIMAPDATA* mom, DWORD dwVolume)
 462 {
 463     /* Native forwards it to some underlying device
 464      * GetVolume returns what was last set here. */
 465     FIXME("stub\n");
 466     return MMSYSERR_NOERROR;
 467 }
 468
 469 static DWORD modGetDevCaps(UINT wDevID, MIDIMAPDATA* mom, LPMIDIOUTCAPSW lpMidiCaps, DWORD_PTR size)
 470 {
 471     static const MIDIOUTCAPSW mappercaps = {
 472         0x00FF, 0x0001, 0x0100, /* Manufacturer and Product ID */
 473         {'W','i','n','e',' ','m','i','d','i',' ','m','a','p','p','e','r',0},
 474         MOD_MAPPER, 0, 0, 0xFFFF,
 475         /* Native returns volume caps of underlying device + MIDICAPS_STREAM */
 476         MIDICAPS_VOLUME|MIDICAPS_LRVOLUME
 477     };
 478     if (lpMidiCaps == NULL) return MMSYSERR_INVALPARAM;
 479     if (!numMidiOutPorts) return MMSYSERR_BADDEVICEID;
 480
 481     memcpy(lpMidiCaps, &mappercaps, min(size, sizeof(*lpMidiCaps)));
 482     return MMSYSERR_NOERROR;
 483 }
 484
 485 static  DWORD   modReset(MIDIMAPDATA* mom)
 486 {
 487     WORD        chn;
 488     DWORD       ret = MMSYSERR_NOERROR;
 489
 490     if (MIDIMAP_IsBadData(mom))
 491         return MMSYSERR_ERROR;
 492
 493     for (chn = 0; chn < 16; chn++)
 494     {
 495         if (mom->ChannelMap[chn] && mom->ChannelMap[chn]->loaded > 0)
 496         {
 497             ret = midiOutReset(mom->ChannelMap[chn]->hMidi);
 498             if (ret != MMSYSERR_NOERROR) break;
 499         }
 500     }
 501     return ret;
 502 }
 503
 504 static LRESULT MIDIMAP_drvOpen(void);
 505 static LRESULT MIDIMAP_drvClose(void);
 506
 507 /**************************************************************************
 508  *                              modMessage (MIDIMAP.@)
 509  */
 510 DWORD WINAPI MIDIMAP_modMessage(UINT wDevID, UINT wMsg, DWORD_PTR dwUser,
 511                                 DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 512 {
 513     TRACE("(%u, %04X, %08lX, %08lX, %08lX);\n",
 514           wDevID, wMsg, dwUser, dwParam1, dwParam2);
 515
 516     switch (wMsg)
 517     {
 518     case DRVM_INIT:
 519         return MIDIMAP_drvOpen();
 520     case DRVM_EXIT:
 521         return MIDIMAP_drvClose();
 522     case DRVM_ENABLE:
 523     case DRVM_DISABLE:
 524         /* FIXME: Pretend this is supported */
 525         return 0;
 526
 527     case MODM_OPEN: return modOpen((DWORD_PTR *)dwUser, (LPMIDIOPENDESC)dwParam1, dwParam2);
 528     case MODM_CLOSE:            return modClose         ((MIDIMAPDATA*)dwUser);
 529
 530     case MODM_DATA:             return modData          ((MIDIMAPDATA*)dwUser, dwParam1);
 531     case MODM_LONGDATA:         return modLongData      ((MIDIMAPDATA*)dwUser, (LPMIDIHDR)dwParam1,     dwParam2);
 532     case MODM_PREPARE:          return modPrepare       ((MIDIMAPDATA*)dwUser, (LPMIDIHDR)dwParam1,     dwParam2);
 533     case MODM_UNPREPARE:        return modUnprepare     ((MIDIMAPDATA*)dwUser, (LPMIDIHDR)dwParam1,     dwParam2);
 534     case MODM_RESET:            return modReset         ((MIDIMAPDATA*)dwUser);
 535
 536     case MODM_GETDEVCAPS:       return modGetDevCaps    (wDevID, (MIDIMAPDATA*)dwUser, (LPMIDIOUTCAPSW)dwParam1,dwParam2);
 537     case MODM_GETNUMDEVS:       return 1;
 538     case MODM_GETVOLUME:        return modGetVolume     ((MIDIMAPDATA*)dwUser, (DWORD*)dwParam1);
 539     case MODM_SETVOLUME:        return modSetVolume     ((MIDIMAPDATA*)dwUser, dwParam1);
 540     default:
 541         FIXME("unknown message %d!\n", wMsg);
 542     }
 543     return MMSYSERR_NOTSUPPORTED;
 544 }
 545
 546 /*======================================================================*
 547  *                  Driver part                                         *
 548  *======================================================================*/
 549
 550 /**************************************************************************
 551  *                              MIDIMAP_drvOpen                 [internal]
 552  */
 553 static LRESULT MIDIMAP_drvOpen(void)
 554 {
 555     MIDIOUTCAPSW        moc;
 556     unsigned            dev, i;
 557     WCHAR               throughportW[] = {'M','i','d','i',' ','T','h','r','o','u','g','h',0};
 558     BOOL                found_valid_port = FALSE;
 559
 560     if (midiOutPorts)
 561         return 0;
 562
 563     numMidiOutPorts = midiOutGetNumDevs();
 564     midiOutPorts = HeapAlloc(GetProcessHeap(), 0,
 565                              numMidiOutPorts * sizeof(MIDIOUTPORT));
 566     for (dev = 0; dev < numMidiOutPorts; dev++)
 567     {
 568         if (midiOutGetDevCapsW(dev, &moc, sizeof(moc)) == 0L)
 569         {
 570             strcpyW(midiOutPorts[dev].name, moc.szPname);
 571             midiOutPorts[dev].loaded = 0;
 572             midiOutPorts[dev].hMidi = 0;
 573             midiOutPorts[dev].uDevID = dev;
 574             midiOutPorts[dev].lpbPatch = NULL;
 575             for (i = 0; i < 16; i++)
 576                 midiOutPorts[dev].aChn[i] = i;
 577             if (strncmpW(midiOutPorts[dev].name, throughportW, strlenW(throughportW)) != 0)
 578                 found_valid_port = TRUE;
 579         }
 580         else
 581         {
 582             midiOutPorts[dev].loaded = -1;
 583         }
 584     }
 585
 586     if (!found_valid_port)
 587         ERR_(winediag)("No software synthesizer midi port found, Midi sound output probably won't work.\n");
 588
 589     return 1;
 590 }
 591
 592 /**************************************************************************
 593  *                              MIDIMAP_drvClose                [internal]
 594  */
 595 static LRESULT MIDIMAP_drvClose(void)
 596 {
 597     if (midiOutPorts)
 598     {
 599         HeapFree(GetProcessHeap(), 0, midiOutPorts);
 600         midiOutPorts = NULL;
 601         return 1;
 602     }
 603     return 0;
 604 }
 605
 606 /**************************************************************************
 607  *                              DriverProc (MIDIMAP.@)
 608  */
 609 LRESULT CALLBACK MIDIMAP_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
 610                                     LPARAM dwParam1, LPARAM dwParam2)
 611 {
 612 /* EPP     TRACE("(%08lX, %04X, %08lX, %08lX, %08lX)\n",  */
 613 /* EPP    dwDevID, hDriv, wMsg, dwParam1, dwParam2); */
 614
 615     switch (wMsg)
 616     {
 617     case DRV_LOAD:              return 1;
 618     case DRV_FREE:              return 1;
 619     case DRV_OPEN:              return 1;
 620     case DRV_CLOSE:             return 1;
 621     case DRV_ENABLE:            return 1;
 622     case DRV_DISABLE:           return 1;
 623     case DRV_QUERYCONFIGURE:    return 1;
 624     case DRV_CONFIGURE:         MessageBoxA(0, "MIDIMAP MultiMedia Driver !", "OSS Driver", MB_OK);     return 1;
 625     case DRV_INSTALL:           return DRVCNF_RESTART;
 626     case DRV_REMOVE:            return DRVCNF_RESTART;
 627     default:
 628         return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
 629     }
 630 }