dlls/winealsa.drv/midi.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2
   3 /*
   4  * Sample MIDI Wine Driver for ALSA (basically Linux)
   5  *
   6  * Copyright 1994       Martin Ayotte
   7  * Copyright 1998       Luiz Otavio L. Zorzella (init procedures)
   8  * Copyright 1998/1999  Eric POUECH :
   9  *              98/7    changes for making this MIDI driver work on OSS
  10  *                      current support is limited to MIDI ports of OSS systems
  11  *              98/9    rewriting MCI code for MIDI
  12  *              98/11   splitted in midi.c and mcimidi.c
  13  * Copyright 2003      Christian Costa :
  14  *                     ALSA port
  15  *
  16  * This library is free software; you can redistribute it and/or
  17  * modify it under the terms of the GNU Lesser General Public
  18  * License as published by the Free Software Foundation; either
  19  * version 2.1 of the License, or (at your option) any later version.
  20  *
  21  * This library is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  24  * Lesser General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU Lesser General Public
  27  * License along with this library; if not, write to the Free Software
  28  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  29  *
  30  * TODO: Finish midi record
  31  *
  32  */
  33
  34 #include "config.h"
  35
  36 #include <string.h>
  37 #include <stdarg.h>
  38 #include <stdio.h>
  39 #ifdef HAVE_UNISTD_H
  40 # include <unistd.h>
  41 #endif
  42 #include <fcntl.h>
  43 #include <errno.h>
  44
  45 #include "windef.h"
  46 #include "winbase.h"
  47 #include "wingdi.h"
  48 #include "winuser.h"
  49 #include "winnls.h"
  50 #include "mmddk.h"
  51 #include "alsa.h"
  52 #include "wine/debug.h"
  53
  54 WINE_DEFAULT_DEBUG_CHANNEL(midi);
  55
  56 #ifdef HAVE_ALSA
  57
  58 #ifndef SND_SEQ_PORT_TYPE_PORT
  59 #define SND_SEQ_PORT_TYPE_PORT (1<<19)  /* Appears in version 1.0.12rc1 */
  60 #endif
  61
  62 typedef struct {
  63     int                 state;                  /* -1 disabled, 0 is no recording started, 1 in recording, bit 2 set if in sys exclusive recording */
  64     DWORD               bufsize;
  65     MIDIOPENDESC        midiDesc;
  66     WORD                wFlags;
  67     LPMIDIHDR           lpQueueHdr;
  68     DWORD               dwTotalPlayed;
  69     unsigned char       incoming[3];
  70     unsigned char       incPrev;
  71     char                incLen;
  72     DWORD               startTime;
  73     MIDIINCAPSW         caps;
  74     snd_seq_addr_t      addr;
  75 } WINE_MIDIIN;
  76
  77 typedef struct {
  78     BOOL                bEnabled;
  79     DWORD               bufsize;
  80     MIDIOPENDESC        midiDesc;
  81     WORD                wFlags;
  82     LPMIDIHDR           lpQueueHdr;
  83     DWORD               dwTotalPlayed;
  84     void*               lpExtra;                /* according to port type (MIDI, FM...), extra data when needed */
  85     MIDIOUTCAPSW        caps;
  86     snd_seq_addr_t      addr;
  87 } WINE_MIDIOUT;
  88
  89 static WINE_MIDIIN      MidiInDev [MAX_MIDIINDRV ];
  90 static WINE_MIDIOUT     MidiOutDev[MAX_MIDIOUTDRV];
  91
  92 /* this is the total number of MIDI out devices found (synth and port) */
  93 static  int             MODM_NumDevs = 0;
  94 /* this is the total number of MIDI out devices found */
  95 static  int             MIDM_NumDevs = 0;
  96
  97 static  snd_seq_t*      midiSeq = NULL;
  98 static  int             numOpenMidiSeq = 0;
  99 static  int             numStartedMidiIn = 0;
 100
 101 static int port_in;
 102 static int port_out;
 103
 104 static CRITICAL_SECTION crit_sect;   /* protects all MidiIn buffer queues */
 105 static CRITICAL_SECTION_DEBUG critsect_debug =
 106 {
 107     0, 0, &crit_sect,
 108     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
 109       0, 0, { (DWORD_PTR)(__FILE__ ": crit_sect") }
 110 };
 111 static CRITICAL_SECTION crit_sect = { &critsect_debug, -1, 0, 0, 0, 0 };
 112
 113 static int end_thread;
 114 static HANDLE hThread;
 115
 116 /*======================================================================*
 117  *                  Low level MIDI implementation                       *
 118  *======================================================================*/
 119
 120 static int midiOpenSeq(int);
 121 static int midiCloseSeq(void);
 122
 123 #if 0 /* Debug Purpose */
 124 static void error_handler(const char* file, int line, const char* function, int err, const char* fmt, ...)
 125 {
 126     va_list arg;
 127     if (err == ENOENT)
 128         return;
 129     va_start(arg, fmt);
 130     fprintf(stderr, "ALSA lib %s:%i:(%s) ", file, line, function);
 131     vfprintf(stderr, fmt, arg);
 132     if (err)
 133         fprintf(stderr, ": %s", snd_strerror(err));
 134     putc('\n', stderr);
 135     va_end(arg);
 136 }
 137 #endif
 138
 139 /**************************************************************************
 140  *                      MIDI_unixToWindowsDeviceType            [internal]
 141  *
 142  * return the Windows equivalent to a Unix Device Type
 143  *
 144  */
 145 static  int     MIDI_AlsaToWindowsDeviceType(int type)
 146 {
 147     /* MOD_MIDIPORT     output port
 148      * MOD_SYNTH        generic internal synth
 149      * MOD_SQSYNTH      square wave internal synth
 150      * MOD_FMSYNTH      FM internal synth
 151      * MOD_MAPPER       MIDI mapper
 152      * MOD_WAVETABLE    hardware watetable internal synth
 153      * MOD_SWSYNTH      software internal synth
 154      */
 155
 156     /* FIXME Is this really the correct equivalence from ALSA to
 157        Windows Sound type */
 158
 159     if (type & SND_SEQ_PORT_TYPE_SYNTH)
 160         return MOD_FMSYNTH;
 161
 162     if (type & (SND_SEQ_PORT_TYPE_DIRECT_SAMPLE|SND_SEQ_PORT_TYPE_SAMPLE))
 163         return MOD_SYNTH;
 164
 165     if (type & (SND_SEQ_PORT_TYPE_MIDI_GENERIC|SND_SEQ_PORT_TYPE_APPLICATION))
 166         return MOD_MIDIPORT;
 167
 168     ERR("Cannot determine the type (alsa type is %x) of this midi device. Assuming FM Synth\n", type);
 169     return MOD_FMSYNTH;
 170 }
 171
 172 /**************************************************************************
 173  *                      MIDI_NotifyClient                       [internal]
 174  */
 175 static DWORD MIDI_NotifyClient(UINT wDevID, WORD wMsg,
 176                                DWORD dwParam1, DWORD dwParam2)
 177 {
 178     DWORD               dwCallBack;
 179     UINT                uFlags;
 180     HANDLE              hDev;
 181     DWORD               dwInstance;
 182
 183     TRACE("wDevID = %04X wMsg = %d dwParm1 = %04X dwParam2 = %04X\n",
 184           wDevID, wMsg, dwParam1, dwParam2);
 185
 186     switch (wMsg) {
 187     case MOM_OPEN:
 188     case MOM_CLOSE:
 189     case MOM_DONE:
 190     case MOM_POSITIONCB:
 191         if (wDevID > MODM_NumDevs)
 192             return MMSYSERR_BADDEVICEID;
 193
 194         dwCallBack = MidiOutDev[wDevID].midiDesc.dwCallback;
 195         uFlags = MidiOutDev[wDevID].wFlags;
 196         hDev = MidiOutDev[wDevID].midiDesc.hMidi;
 197         dwInstance = MidiOutDev[wDevID].midiDesc.dwInstance;
 198         break;
 199
 200     case MIM_OPEN:
 201     case MIM_CLOSE:
 202     case MIM_DATA:
 203     case MIM_LONGDATA:
 204     case MIM_ERROR:
 205     case MIM_LONGERROR:
 206     case MIM_MOREDATA:
 207         if (wDevID > MIDM_NumDevs)
 208             return MMSYSERR_BADDEVICEID;
 209
 210         dwCallBack = MidiInDev[wDevID].midiDesc.dwCallback;
 211         uFlags = MidiInDev[wDevID].wFlags;
 212         hDev = MidiInDev[wDevID].midiDesc.hMidi;
 213         dwInstance = MidiInDev[wDevID].midiDesc.dwInstance;
 214         break;
 215     default:
 216         WARN("Unsupported MSW-MIDI message %u\n", wMsg);
 217         return MMSYSERR_ERROR;
 218     }
 219
 220     return DriverCallback(dwCallBack, uFlags, hDev, wMsg, dwInstance, dwParam1, dwParam2) ?
 221         0 : MMSYSERR_ERROR;
 222 }
 223
 224 static int midi_warn = 1;
 225 /**************************************************************************
 226  *                      midiOpenSeq                             [internal]
 227  */
 228 static int midiOpenSeq(int create_client)
 229 {
 230     if (numOpenMidiSeq == 0) {
 231         if (snd_seq_open(&midiSeq, "default", SND_SEQ_OPEN_DUPLEX, 0) < 0)
 232         {
 233             if (midi_warn)
 234             {
 235                 WARN("Error opening ALSA sequencer.\n");
 236             }
 237             midi_warn = 0;
 238             return -1;
 239         }
 240
 241         if (create_client) {
 242             /* Setting the client name is the only init to do */
 243             snd_seq_set_client_name(midiSeq, "WINE midi driver");
 244
 245 #if 0 /* FIXME: Is it possible to use a port for READ & WRITE ops */
 246             port_in = port_out = snd_seq_create_simple_port(midiSeq, "WINE ALSA Input/Output", SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_WRITE,
 247                                                                          SND_SEQ_PORT_TYPE_APPLICATION);
 248             if (port_out < 0)
 249                TRACE("Unable to create output port\n");
 250             else
 251                TRACE("Outport port created successfully (%d)\n", port_out);
 252 #else
 253             port_out = snd_seq_create_simple_port(midiSeq, "WINE ALSA Output", SND_SEQ_PORT_CAP_READ,
 254                                                                                  SND_SEQ_PORT_TYPE_APPLICATION);
 255             if (port_out < 0)
 256                 TRACE("Unable to create output port\n");
 257             else
 258                 TRACE("Outport port created successfully (%d)\n", port_out);
 259
 260             port_in = snd_seq_create_simple_port(midiSeq, "WINE ALSA Input", SND_SEQ_PORT_CAP_WRITE,
 261                                                                        SND_SEQ_PORT_TYPE_APPLICATION);
 262             if (port_in < 0)
 263                 TRACE("Unable to create input port\n");
 264             else
 265                 TRACE("Input port created successfully (%d)\n", port_in);
 266 #endif
 267        }
 268     }
 269     numOpenMidiSeq++;
 270     return 0;
 271 }
 272
 273 /**************************************************************************
 274  *                      midiCloseSeq                            [internal]
 275  */
 276 static int midiCloseSeq(void)
 277 {
 278     if (--numOpenMidiSeq == 0) {
 279         snd_seq_delete_simple_port(midiSeq, port_out);
 280         snd_seq_delete_simple_port(midiSeq, port_in);
 281         snd_seq_close(midiSeq);
 282         midiSeq = NULL;
 283     }
 284     return 0;
 285 }
 286
 287 static DWORD WINAPI midRecThread(LPVOID arg)
 288 {
 289     int npfd;
 290     struct pollfd *pfd;
 291
 292     TRACE("Thread startup\n");
 293
 294     while(!end_thread) {
 295         TRACE("Thread loop\n");
 296         npfd = snd_seq_poll_descriptors_count(midiSeq, POLLIN);
 297         pfd = HeapAlloc(GetProcessHeap(), 0, npfd * sizeof(struct pollfd));
 298         snd_seq_poll_descriptors(midiSeq, pfd, npfd, POLLIN);
 299
 300         /* Check if an event is present */
 301         if (poll(pfd, npfd, 250) < 0) {
 302             HeapFree(GetProcessHeap(), 0, pfd);
 303             continue;
 304         }
 305
 306         /* Note: This definitely does not work.
 307          * while(snd_seq_event_input_pending(midiSeq, 0) > 0) {
 308                snd_seq_event_t* ev;
 309                snd_seq_event_input(midiSeq, &ev);
 310                ....................
 311                snd_seq_free_event(ev);
 312            }*/
 313
 314         do {
 315             WORD wDevID;
 316             snd_seq_event_t* ev;
 317             snd_seq_event_input(midiSeq, &ev);
 318             /* Find the target device */
 319             for (wDevID = 0; wDevID < MIDM_NumDevs; wDevID++)
 320                 if ( (ev->source.client == MidiInDev[wDevID].addr.client) && (ev->source.port == MidiInDev[wDevID].addr.port) )
 321                     break;
 322             if ((wDevID == MIDM_NumDevs) || (MidiInDev[wDevID].state != 1))
 323                 FIXME("Unexpected event received, type = %x from %d:%d\n", ev->type, ev->source.client, ev->source.port);
 324             else {
 325                 DWORD dwTime, toSend = 0;
 326                 int value = 0;
 327                 /* FIXME: Should use ev->time instead for better accuracy */
 328                 dwTime = GetTickCount() - MidiInDev[wDevID].startTime;
 329                 TRACE("Event received, type = %x, device = %d\n", ev->type, wDevID);
 330                 switch(ev->type)
 331                 {
 332                 case SND_SEQ_EVENT_NOTEOFF:
 333                     toSend = (ev->data.note.velocity << 16) | (ev->data.note.note << 8) | MIDI_CMD_NOTE_OFF | ev->data.control.channel;
 334                     break;
 335                 case SND_SEQ_EVENT_NOTEON:
 336                     toSend = (ev->data.note.velocity << 16) | (ev->data.note.note << 8) | MIDI_CMD_NOTE_ON | ev->data.control.channel;
 337                     break;
 338                 case SND_SEQ_EVENT_KEYPRESS:
 339                     toSend = (ev->data.note.velocity << 16) | (ev->data.note.note << 8) | MIDI_CMD_NOTE_PRESSURE | ev->data.control.channel;
 340                     break;
 341                 case SND_SEQ_EVENT_CONTROLLER:
 342                     toSend = (ev->data.control.value << 16) | (ev->data.control.param << 8) | MIDI_CMD_CONTROL | ev->data.control.channel;
 343                     break;
 344                 case SND_SEQ_EVENT_PITCHBEND:
 345                     value = ev->data.control.value + 0x2000;
 346                     toSend = (((value >> 7) & 0x7f) << 16) | ((value & 0x7f) << 8) | MIDI_CMD_BENDER | ev->data.control.channel;
 347                     break;
 348                 case SND_SEQ_EVENT_PGMCHANGE:
 349                     toSend = ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_PGM_CHANGE | ev->data.control.channel;
 350                     break;
 351                 case SND_SEQ_EVENT_CHANPRESS:
 352                     toSend = ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_CHANNEL_PRESSURE | ev->data.control.channel;
 353                     break;
 354                 case SND_SEQ_EVENT_CLOCK:
 355                     toSend = 0xF8;
 356                     break;
 357                 case SND_SEQ_EVENT_START:
 358                     toSend = 0xFA;
 359                     break;
 360                 case SND_SEQ_EVENT_CONTINUE:
 361                     toSend = 0xFB;
 362                     break;
 363                 case SND_SEQ_EVENT_STOP:
 364                     toSend = 0xFC;
 365                     break;
 366                 case SND_SEQ_EVENT_SONGPOS:
 367                     toSend = (((ev->data.control.value >> 7) & 0x7f) << 16) | ((ev->data.control.value & 0x7f) << 8) | 0xF2;
 368                     break;
 369                 case SND_SEQ_EVENT_SONGSEL:
 370                   toSend = ((ev->data.control.value & 0x7f) << 8) | 0xF3;
 371                     break;
 372                 case SND_SEQ_EVENT_RESET:
 373                     toSend = 0xFF;
 374                     break;
 375                 case SND_SEQ_EVENT_SYSEX:
 376                     {
 377                         int len = ev->data.ext.len;
 378                         LPBYTE ptr = (BYTE*) ev->data.ext.ptr;
 379                         LPMIDIHDR lpMidiHdr;
 380
 381                         /* FIXME: Should handle sysex greater than lpMidiHdr->dwBufferLength */
 382                         EnterCriticalSection(&crit_sect);
 383                         if ((lpMidiHdr = MidiInDev[wDevID].lpQueueHdr) != NULL) {
 384                             if (lpMidiHdr->dwBytesRecorded + len <= lpMidiHdr->dwBufferLength) {
 385                                 memcpy(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded, ptr, len);
 386                                 lpMidiHdr->dwBytesRecorded += len;
 387                                 if (*(ptr + (len-1)) == 0xF7) {
 388                                     lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
 389                                     lpMidiHdr->dwFlags |= MHDR_DONE;
 390                                     MidiInDev[wDevID].lpQueueHdr = (LPMIDIHDR)lpMidiHdr->lpNext;
 391                                     if (MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD)lpMidiHdr, dwTime) != MMSYSERR_NOERROR)
 392                                         WARN("Couldn't notify client\n");
 393                                 }
 394                             } else
 395                                 FIXME("No enough space in the buffer to store sysex!\n");
 396                         } else
 397                             FIXME("Sysex received but no buffer to store it!\n");
 398                         LeaveCriticalSection(&crit_sect);
 399                     }
 400                     break;
 401                 case SND_SEQ_EVENT_SENSING:
 402                     /* Noting to do */
 403                     break;
 404                 default:
 405                     FIXME("Unhandled event received, type = %x\n", ev->type);
 406                     break;
 407                 }
 408                 if (toSend != 0) {
 409                     TRACE("Sending event %08x (from %d %d)\n", toSend, ev->source.client, ev->source.port);
 410                     if (MIDI_NotifyClient(wDevID, MIM_DATA, toSend, dwTime) != MMSYSERR_NOERROR) {
 411                         WARN("Couldn't notify client\n");
 412                     }
 413                 }
 414             }
 415             snd_seq_free_event(ev);
 416         } while(snd_seq_event_input_pending(midiSeq, 0) > 0);
 417
 418         HeapFree(GetProcessHeap(), 0, pfd);
 419     }
 420     return 0;
 421 }
 422
 423 /**************************************************************************
 424  *                              midGetDevCaps                   [internal]
 425  */
 426 static DWORD midGetDevCaps(WORD wDevID, LPMIDIINCAPSW lpCaps, DWORD dwSize)
 427 {
 428     TRACE("(%04X, %p, %08X);\n", wDevID, lpCaps, dwSize);
 429
 430     if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
 431     if (lpCaps == NULL)         return MMSYSERR_INVALPARAM;
 432
 433     memcpy(lpCaps, &MidiInDev[wDevID].caps, min(dwSize, sizeof(*lpCaps)));
 434
 435     return MMSYSERR_NOERROR;
 436 }
 437
 438
 439 /**************************************************************************
 440  *                      midOpen                                 [internal]
 441  */
 442 static DWORD midOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
 443 {
 444     TRACE("(%04X, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 445
 446     if (lpDesc == NULL) {
 447         WARN("Invalid Parameter !\n");
 448         return MMSYSERR_INVALPARAM;
 449     }
 450
 451     /* FIXME :
 452      *  how to check that content of lpDesc is correct ?
 453      */
 454     if (wDevID >= MIDM_NumDevs) {
 455         WARN("wDevID too large (%u) !\n", wDevID);
 456         return MMSYSERR_BADDEVICEID;
 457     }
 458     if (MidiInDev[wDevID].state == -1) {
 459         WARN("device disabled\n");
 460         return MIDIERR_NODEVICE;
 461     }
 462     if (MidiInDev[wDevID].midiDesc.hMidi != 0) {
 463         WARN("device already open !\n");
 464         return MMSYSERR_ALLOCATED;
 465     }
 466     if ((dwFlags & MIDI_IO_STATUS) != 0) {
 467         WARN("No support for MIDI_IO_STATUS in dwFlags yet, ignoring it\n");
 468         dwFlags &= ~MIDI_IO_STATUS;
 469     }
 470     if ((dwFlags & ~CALLBACK_TYPEMASK) != 0) {
 471         FIXME("Bad dwFlags\n");
 472         return MMSYSERR_INVALFLAG;
 473     }
 474
 475     if (midiOpenSeq(1) < 0) {
 476         return MMSYSERR_ERROR;
 477     }
 478
 479     /* Connect our app port to the device port */
 480     if (snd_seq_connect_from(midiSeq, port_in, MidiInDev[wDevID].addr.client, MidiInDev[wDevID].addr.port) < 0)
 481         return MMSYSERR_NOTENABLED;
 482
 483     TRACE("input port connected %d %d %d\n",port_in,MidiInDev[wDevID].addr.client,MidiInDev[wDevID].addr.port);
 484
 485     if (numStartedMidiIn++ == 0) {
 486         end_thread = 0;
 487         hThread = CreateThread(NULL, 0, midRecThread, NULL, 0, NULL);
 488         if (!hThread) {
 489             numStartedMidiIn = 0;
 490             WARN("Couldn't create thread for midi-in\n");
 491             midiCloseSeq();
 492             return MMSYSERR_ERROR;
 493         }
 494         SetThreadPriority(hThread, THREAD_PRIORITY_TIME_CRITICAL);
 495         TRACE("Created thread for midi-in\n");
 496     }
 497
 498     MidiInDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 499
 500     MidiInDev[wDevID].lpQueueHdr = NULL;
 501     MidiInDev[wDevID].dwTotalPlayed = 0;
 502     MidiInDev[wDevID].bufsize = 0x3FFF;
 503     MidiInDev[wDevID].midiDesc = *lpDesc;
 504     MidiInDev[wDevID].state = 0;
 505     MidiInDev[wDevID].incLen = 0;
 506     MidiInDev[wDevID].startTime = 0;
 507
 508     if (MIDI_NotifyClient(wDevID, MIM_OPEN, 0L, 0L) != MMSYSERR_NOERROR) {
 509         WARN("can't notify client !\n");
 510         return MMSYSERR_INVALPARAM;
 511     }
 512     return MMSYSERR_NOERROR;
 513 }
 514
 515 /**************************************************************************
 516  *                      midClose                                [internal]
 517  */
 518 static DWORD midClose(WORD wDevID)
 519 {
 520     int         ret = MMSYSERR_NOERROR;
 521
 522     TRACE("(%04X);\n", wDevID);
 523
 524     if (wDevID >= MIDM_NumDevs) {
 525         WARN("wDevID too big (%u) !\n", wDevID);
 526         return MMSYSERR_BADDEVICEID;
 527     }
 528     if (MidiInDev[wDevID].midiDesc.hMidi == 0) {
 529         WARN("device not opened !\n");
 530         return MMSYSERR_ERROR;
 531     }
 532     if (MidiInDev[wDevID].lpQueueHdr != 0) {
 533         return MIDIERR_STILLPLAYING;
 534     }
 535
 536     if (midiSeq == NULL) {
 537         WARN("ooops !\n");
 538         return MMSYSERR_ERROR;
 539     }
 540     if (--numStartedMidiIn == 0) {
 541         TRACE("Stopping thread for midi-in\n");
 542         end_thread = 1;
 543         if (WaitForSingleObject(hThread, 5000) != WAIT_OBJECT_0) {
 544             WARN("Thread end not signaled, force termination\n");
 545             TerminateThread(hThread, 0);
 546         }
 547         TRACE("Stopped thread for midi-in\n");
 548     }
 549
 550     snd_seq_disconnect_from(midiSeq, port_in, MidiInDev[wDevID].addr.client, MidiInDev[wDevID].addr.port);
 551     midiCloseSeq();
 552
 553     MidiInDev[wDevID].bufsize = 0;
 554     if (MIDI_NotifyClient(wDevID, MIM_CLOSE, 0L, 0L) != MMSYSERR_NOERROR) {
 555         WARN("can't notify client !\n");
 556         ret = MMSYSERR_INVALPARAM;
 557     }
 558     MidiInDev[wDevID].midiDesc.hMidi = 0;
 559
 560     return ret;
 561 }
 562
 563
 564 /**************************************************************************
 565  *                              midAddBuffer                    [internal]
 566  */
 567 static DWORD midAddBuffer(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
 568 {
 569     TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
 570
 571     if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
 572     if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;
 573
 574     if (lpMidiHdr == NULL)      return MMSYSERR_INVALPARAM;
 575     if (sizeof(MIDIHDR) > dwSize) return MMSYSERR_INVALPARAM;
 576     if (lpMidiHdr->dwBufferLength == 0) return MMSYSERR_INVALPARAM;
 577     if (lpMidiHdr->dwFlags & MHDR_INQUEUE) return MIDIERR_STILLPLAYING;
 578     if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) return MIDIERR_UNPREPARED;
 579
 580     EnterCriticalSection(&crit_sect);
 581     lpMidiHdr->dwFlags |= MHDR_INQUEUE;
 582     if (MidiInDev[wDevID].lpQueueHdr == 0) {
 583         MidiInDev[wDevID].lpQueueHdr = lpMidiHdr;
 584     } else {
 585         LPMIDIHDR       ptr;
 586
 587         for (ptr = MidiInDev[wDevID].lpQueueHdr;
 588              ptr->lpNext != 0;
 589              ptr = (LPMIDIHDR)ptr->lpNext);
 590         ptr->lpNext = (struct midihdr_tag*)lpMidiHdr;
 591     }
 592     LeaveCriticalSection(&crit_sect);
 593
 594     return MMSYSERR_NOERROR;
 595 }
 596
 597 /**************************************************************************
 598  *                              midPrepare                      [internal]
 599  */
 600 static DWORD midPrepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
 601 {
 602     TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
 603
 604     if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0 ||
 605         lpMidiHdr->lpData == 0 || (lpMidiHdr->dwFlags & MHDR_INQUEUE) != 0 ||
 606         lpMidiHdr->dwBufferLength >= 0x10000ul)
 607         return MMSYSERR_INVALPARAM;
 608
 609     lpMidiHdr->lpNext = 0;
 610     lpMidiHdr->dwFlags |= MHDR_PREPARED;
 611     lpMidiHdr->dwBytesRecorded = 0;
 612
 613     return MMSYSERR_NOERROR;
 614 }
 615
 616 /**************************************************************************
 617  *                              midUnprepare                    [internal]
 618  */
 619 static DWORD midUnprepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
 620 {
 621     TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
 622
 623     if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
 624     if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;
 625
 626     if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0 ||
 627         lpMidiHdr->lpData == 0 || lpMidiHdr->dwBufferLength >= 0x10000ul)
 628         return MMSYSERR_INVALPARAM;
 629
 630     if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) return MIDIERR_UNPREPARED;
 631     if (lpMidiHdr->dwFlags & MHDR_INQUEUE) return MIDIERR_STILLPLAYING;
 632
 633     lpMidiHdr->dwFlags &= ~MHDR_PREPARED;
 634
 635     return MMSYSERR_NOERROR;
 636 }
 637
 638 /**************************************************************************
 639  *                      midReset                                [internal]
 640  */
 641 static DWORD midReset(WORD wDevID)
 642 {
 643     DWORD               dwTime = GetTickCount();
 644
 645     TRACE("(%04X);\n", wDevID);
 646
 647     if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
 648     if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;
 649
 650     EnterCriticalSection(&crit_sect);
 651     while (MidiInDev[wDevID].lpQueueHdr) {
 652         MidiInDev[wDevID].lpQueueHdr->dwFlags &= ~MHDR_INQUEUE;
 653         MidiInDev[wDevID].lpQueueHdr->dwFlags |= MHDR_DONE;
 654         /* FIXME: when called from 16 bit, lpQueueHdr needs to be a segmented ptr */
 655         if (MIDI_NotifyClient(wDevID, MIM_LONGDATA,
 656                               (DWORD)MidiInDev[wDevID].lpQueueHdr, dwTime) != MMSYSERR_NOERROR) {
 657             WARN("Couldn't notify client\n");
 658         }
 659         MidiInDev[wDevID].lpQueueHdr = (LPMIDIHDR)MidiInDev[wDevID].lpQueueHdr->lpNext;
 660     }
 661     LeaveCriticalSection(&crit_sect);
 662
 663     return MMSYSERR_NOERROR;
 664 }
 665
 666 /**************************************************************************
 667  *                      midStart                                [internal]
 668  */
 669 static DWORD midStart(WORD wDevID)
 670 {
 671     TRACE("(%04X);\n", wDevID);
 672
 673     if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
 674     if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;
 675
 676     MidiInDev[wDevID].state = 1;
 677     MidiInDev[wDevID].startTime = GetTickCount();
 678     return MMSYSERR_NOERROR;
 679 }
 680
 681 /**************************************************************************
 682  *                      midStop                                 [internal]
 683  */
 684 static DWORD midStop(WORD wDevID)
 685 {
 686     TRACE("(%04X);\n", wDevID);
 687
 688     if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
 689     if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;
 690
 691     MidiInDev[wDevID].state = 0;
 692     return MMSYSERR_NOERROR;
 693 }
 694
 695 /**************************************************************************
 696  *                              modGetDevCaps                   [internal]
 697  */
 698 static DWORD modGetDevCaps(WORD wDevID, LPMIDIOUTCAPSW lpCaps, DWORD dwSize)
 699 {
 700     TRACE("(%04X, %p, %08X);\n", wDevID, lpCaps, dwSize);
 701
 702     if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
 703     if (lpCaps == NULL)         return MMSYSERR_INVALPARAM;
 704
 705     memcpy(lpCaps, &MidiOutDev[wDevID].caps, min(dwSize, sizeof(*lpCaps)));
 706
 707     return MMSYSERR_NOERROR;
 708 }
 709
 710 /**************************************************************************
 711  *                      modOpen                                 [internal]
 712  */
 713 static DWORD modOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
 714 {
 715     TRACE("(%04X, %p, %08X);\n", wDevID, lpDesc, dwFlags);
 716     if (lpDesc == NULL) {
 717         WARN("Invalid Parameter !\n");
 718         return MMSYSERR_INVALPARAM;
 719     }
 720     if (wDevID >= MODM_NumDevs) {
 721         TRACE("MAX_MIDIOUTDRV reached !\n");
 722         return MMSYSERR_BADDEVICEID;
 723     }
 724     if (MidiOutDev[wDevID].midiDesc.hMidi != 0) {
 725         WARN("device already open !\n");
 726         return MMSYSERR_ALLOCATED;
 727     }
 728     if (!MidiOutDev[wDevID].bEnabled) {
 729         WARN("device disabled !\n");
 730         return MIDIERR_NODEVICE;
 731     }
 732     if ((dwFlags & ~CALLBACK_TYPEMASK) != 0) {
 733         WARN("bad dwFlags\n");
 734         return MMSYSERR_INVALFLAG;
 735     }
 736     if (!MidiOutDev[wDevID].bEnabled) {
 737         TRACE("disabled wDevID\n");
 738         return MMSYSERR_NOTENABLED;
 739     }
 740
 741     MidiOutDev[wDevID].lpExtra = 0;
 742
 743     switch (MidiOutDev[wDevID].caps.wTechnology) {
 744     case MOD_FMSYNTH:
 745     case MOD_MIDIPORT:
 746     case MOD_SYNTH:
 747         if (midiOpenSeq(1) < 0) {
 748             return MMSYSERR_ALLOCATED;
 749         }
 750         break;
 751     default:
 752         WARN("Technology not supported (yet) %d !\n",
 753              MidiOutDev[wDevID].caps.wTechnology);
 754         return MMSYSERR_NOTENABLED;
 755     }
 756
 757     MidiOutDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
 758
 759     MidiOutDev[wDevID].lpQueueHdr = NULL;
 760     MidiOutDev[wDevID].dwTotalPlayed = 0;
 761     MidiOutDev[wDevID].bufsize = 0x3FFF;
 762     MidiOutDev[wDevID].midiDesc = *lpDesc;
 763
 764     /* Connect our app port to the device port */
 765     if (snd_seq_connect_to(midiSeq, port_out, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port) < 0)
 766         return MMSYSERR_NOTENABLED;
 767
 768     if (MIDI_NotifyClient(wDevID, MOM_OPEN, 0L, 0L) != MMSYSERR_NOERROR) {
 769         WARN("can't notify client !\n");
 770         return MMSYSERR_INVALPARAM;
 771     }
 772     TRACE("Successful !\n");
 773     return MMSYSERR_NOERROR;
 774 }
 775
 776
 777 /**************************************************************************
 778  *                      modClose                                [internal]
 779  */
 780 static DWORD modClose(WORD wDevID)
 781 {
 782     int ret = MMSYSERR_NOERROR;
 783
 784     TRACE("(%04X);\n", wDevID);
 785
 786     if (MidiOutDev[wDevID].midiDesc.hMidi == 0) {
 787         WARN("device not opened !\n");
 788         return MMSYSERR_ERROR;
 789     }
 790     /* FIXME: should test that no pending buffer is still in the queue for
 791      * playing */
 792
 793     if (midiSeq == NULL) {
 794         WARN("can't close !\n");
 795         return MMSYSERR_ERROR;
 796     }
 797
 798     switch (MidiOutDev[wDevID].caps.wTechnology) {
 799     case MOD_FMSYNTH:
 800     case MOD_MIDIPORT:
 801     case MOD_SYNTH:
 802         snd_seq_disconnect_to(midiSeq, port_out, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
 803         midiCloseSeq();
 804         break;
 805     default:
 806         WARN("Technology not supported (yet) %d !\n",
 807              MidiOutDev[wDevID].caps.wTechnology);
 808         return MMSYSERR_NOTENABLED;
 809     }
 810
 811     HeapFree(GetProcessHeap(), 0, MidiOutDev[wDevID].lpExtra);
 812     MidiOutDev[wDevID].lpExtra = 0;
 813
 814     MidiOutDev[wDevID].bufsize = 0;
 815     if (MIDI_NotifyClient(wDevID, MOM_CLOSE, 0L, 0L) != MMSYSERR_NOERROR) {
 816         WARN("can't notify client !\n");
 817         ret = MMSYSERR_INVALPARAM;
 818     }
 819     MidiOutDev[wDevID].midiDesc.hMidi = 0;
 820     return ret;
 821 }
 822
 823 /**************************************************************************
 824  *                      modData                                 [internal]
 825  */
 826 static DWORD modData(WORD wDevID, DWORD dwParam)
 827 {
 828     BYTE        evt = LOBYTE(LOWORD(dwParam));
 829     BYTE        d1  = HIBYTE(LOWORD(dwParam));
 830     BYTE        d2  = LOBYTE(HIWORD(dwParam));
 831
 832     TRACE("(%04X, %08X);\n", wDevID, dwParam);
 833
 834     if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
 835     if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;
 836
 837     if (midiSeq == NULL) {
 838         WARN("can't play !\n");
 839         return MIDIERR_NODEVICE;
 840     }
 841     switch (MidiOutDev[wDevID].caps.wTechnology) {
 842     case MOD_SYNTH:
 843     case MOD_MIDIPORT:
 844         {
 845             int handled = 1; /* Assume event is handled */
 846             snd_seq_event_t event;
 847             snd_seq_ev_clear(&event);
 848             snd_seq_ev_set_direct(&event);
 849             snd_seq_ev_set_source(&event, port_out);
 850             snd_seq_ev_set_dest(&event, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
 851
 852             switch (evt & 0xF0) {
 853             case MIDI_CMD_NOTE_OFF:
 854                 snd_seq_ev_set_noteoff(&event, evt&0x0F, d1, d2);
 855                 break;
 856             case MIDI_CMD_NOTE_ON:
 857                 snd_seq_ev_set_noteon(&event, evt&0x0F, d1, d2);
 858                 break;
 859             case MIDI_CMD_NOTE_PRESSURE:
 860                 snd_seq_ev_set_keypress(&event, evt&0x0F, d1, d2);
 861                 break;
 862             case MIDI_CMD_CONTROL:
 863                 snd_seq_ev_set_controller(&event, evt&0x0F, d1, d2);
 864                 break;
 865             case MIDI_CMD_BENDER:
 866                 snd_seq_ev_set_pitchbend(&event, evt&0x0F, ((WORD)d2 << 7 | (WORD)d1) - 0x2000);
 867                 break;
 868             case MIDI_CMD_PGM_CHANGE:
 869                 snd_seq_ev_set_pgmchange(&event, evt&0x0F, d1);
 870                 break;
 871             case MIDI_CMD_CHANNEL_PRESSURE:
 872                 snd_seq_ev_set_chanpress(&event, evt&0x0F, d1);
 873                 break;
 874             case MIDI_CMD_COMMON_SYSEX:
 875                 switch (evt & 0x0F) {
 876                 case 0x00:      /* System Exclusive, don't do it on modData,
 877                                  * should require modLongData*/
 878                 case 0x01:      /* Undefined */
 879                 case 0x04:      /* Undefined. */
 880                 case 0x05:      /* Undefined. */
 881                 case 0x07:      /* End of Exclusive. */
 882                 case 0x09:      /* Undefined. */
 883                 case 0x0D:      /* Undefined. */
 884                     handled = 0;
 885                     break;
 886                 case 0x06:      /* Tune Request */
 887                 case 0x08:      /* Timing Clock. */
 888                 case 0x0A:      /* Start. */
 889                 case 0x0B:      /* Continue */
 890                 case 0x0C:      /* Stop */
 891                 case 0x0E:      /* Active Sensing. */
 892                     /* FIXME: Is this function suitable for these purposes
 893                        (and also Song Select and Song Position Pointer) */
 894                     snd_seq_ev_set_sysex(&event, 1, &evt);
 895                     break;
 896                 case 0x0F:      /* Reset */
 897                                 /* snd_seq_ev_set_sysex(&event, 1, &evt);
 898                                    this other way may be better */
 899                     {
 900                         BYTE reset_sysex_seq[] = {MIDI_CMD_COMMON_SYSEX, 0x7e, 0x7f, 0x09, 0x01, 0xf7};
 901                         snd_seq_ev_set_sysex(&event, sizeof(reset_sysex_seq), reset_sysex_seq);
 902                     }
 903                     break;
 904                 case 0x03:      /* Song Select. */
 905                     {
 906                         BYTE buf[2];
 907                         buf[0] = evt;
 908                         buf[1] = d1;
 909                         snd_seq_ev_set_sysex(&event, sizeof(buf), buf);
 910                     }
 911                     break;
 912                 case 0x02:      /* Song Position Pointer. */
 913                     {
 914                         BYTE buf[3];
 915                         buf[0] = evt;
 916                         buf[1] = d1;
 917                         buf[2] = d2;
 918                         snd_seq_ev_set_sysex(&event, sizeof(buf), buf);
 919                     }
 920                     break;
 921                 }
 922                 break;
 923             }
 924             if (handled)
 925                 snd_seq_event_output_direct(midiSeq, &event);
 926         }
 927         break;
 928     default:
 929         WARN("Technology not supported (yet) %d !\n",
 930              MidiOutDev[wDevID].caps.wTechnology);
 931         return MMSYSERR_NOTENABLED;
 932     }
 933
 934     return MMSYSERR_NOERROR;
 935 }
 936
 937 /**************************************************************************
 938  *              modLongData                                     [internal]
 939  */
 940 static DWORD modLongData(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
 941 {
 942     int         len_add = 0;
 943     LPBYTE      lpData, lpNewData = NULL;
 944     snd_seq_event_t event;
 945
 946     TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
 947
 948     /* Note: MS doc does not say much about the dwBytesRecorded member of the MIDIHDR structure
 949      * but it seems to be used only for midi input.
 950      * Taking a look at the WAVEHDR structure (which is quite similar) confirms this assumption.
 951      */
 952
 953     if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
 954     if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;
 955
 956     if (midiSeq == NULL) {
 957         WARN("can't play !\n");
 958         return MIDIERR_NODEVICE;
 959     }
 960
 961     lpData = (LPBYTE) lpMidiHdr->lpData;
 962
 963     if (lpData == NULL)
 964         return MIDIERR_UNPREPARED;
 965     if (!(lpMidiHdr->dwFlags & MHDR_PREPARED))
 966         return MIDIERR_UNPREPARED;
 967     if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
 968         return MIDIERR_STILLPLAYING;
 969     lpMidiHdr->dwFlags &= ~MHDR_DONE;
 970     lpMidiHdr->dwFlags |= MHDR_INQUEUE;
 971
 972     /* FIXME: MS doc is not 100% clear. Will lpData only contain system exclusive
 973      * data, or can it also contain raw MIDI data, to be split up and sent to
 974      * modShortData() ?
 975      * If the latest is true, then the following WARNing will fire up
 976      */
 977     if (lpData[0] != 0xF0 || lpData[lpMidiHdr->dwBufferLength - 1] != 0xF7) {
 978         WARN("Alleged system exclusive buffer is not correct\n\tPlease report with MIDI file\n");
 979         lpNewData = HeapAlloc(GetProcessHeap(), 0, lpMidiHdr->dwBufferLength + 2);
 980     }
 981
 982     TRACE("dwBufferLength=%u !\n", lpMidiHdr->dwBufferLength);
 983     TRACE("                 %02X %02X %02X ... %02X %02X %02X\n",
 984           lpData[0], lpData[1], lpData[2], lpData[lpMidiHdr->dwBufferLength-3],
 985           lpData[lpMidiHdr->dwBufferLength-2], lpData[lpMidiHdr->dwBufferLength-1]);
 986
 987     switch (MidiOutDev[wDevID].caps.wTechnology) {
 988     case MOD_FMSYNTH:
 989         /* FIXME: I don't think there is much to do here */
 990         break;
 991     case MOD_MIDIPORT:
 992         if (lpData[0] != 0xF0) {
 993             /* Send start of System Exclusive */
 994             len_add = 1;
 995             lpData[0] = 0xF0;
 996             memcpy(lpNewData, lpData, lpMidiHdr->dwBufferLength);
 997             WARN("Adding missing 0xF0 marker at the beginning of "
 998                  "system exclusive byte stream\n");
 999         }
1000         if (lpData[lpMidiHdr->dwBufferLength-1] != 0xF7) {
1001             /* Send end of System Exclusive */
1002             memcpy(lpData + len_add, lpData, lpMidiHdr->dwBufferLength);
1003             lpNewData[lpMidiHdr->dwBufferLength + len_add - 1] = 0xF0;
1004             len_add++;
1005             WARN("Adding missing 0xF7 marker at the end of "
1006                  "system exclusive byte stream\n");
1007         }
1008         snd_seq_ev_clear(&event);
1009         snd_seq_ev_set_direct(&event);
1010         snd_seq_ev_set_source(&event, port_out);
1011         snd_seq_ev_set_dest(&event, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
1012         TRACE("client = %d port = %d\n", MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
1013         snd_seq_ev_set_sysex(&event, lpMidiHdr->dwBufferLength + len_add, lpNewData ? lpNewData : lpData);
1014         snd_seq_event_output_direct(midiSeq, &event);
1015         if (lpNewData)
1016                 HeapFree(GetProcessHeap(), 0, lpData);
1017         break;
1018     default:
1019         WARN("Technology not supported (yet) %d !\n",
1020              MidiOutDev[wDevID].caps.wTechnology);
1021         HeapFree(GetProcessHeap(), 0, lpNewData);
1022         return MMSYSERR_NOTENABLED;
1023     }
1024
1025     lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
1026     lpMidiHdr->dwFlags |= MHDR_DONE;
1027     if (MIDI_NotifyClient(wDevID, MOM_DONE, (DWORD)lpMidiHdr, 0L) != MMSYSERR_NOERROR) {
1028         WARN("can't notify client !\n");
1029         return MMSYSERR_INVALPARAM;
1030     }
1031     return MMSYSERR_NOERROR;
1032 }
1033
1034 /**************************************************************************
1035  *                      modPrepare                              [internal]
1036  */
1037 static DWORD modPrepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
1038 {
1039     TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
1040
1041     if (midiSeq == NULL) {
1042         WARN("can't prepare !\n");
1043         return MMSYSERR_NOTENABLED;
1044     }
1045
1046     /* MS doc says that dwFlags must be set to zero, but (kinda funny) MS mciseq drivers
1047      * asks to prepare MIDIHDR which dwFlags != 0.
1048      * So at least check for the inqueue flag
1049      */
1050     if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0 ||
1051         lpMidiHdr->lpData == 0 || (lpMidiHdr->dwFlags & MHDR_INQUEUE) != 0 ||
1052         lpMidiHdr->dwBufferLength >= 0x10000ul) {
1053         WARN("%p %p %08x %d/%d\n", lpMidiHdr, lpMidiHdr->lpData,
1054                    lpMidiHdr->dwFlags, sizeof(MIDIHDR), dwSize);
1055         return MMSYSERR_INVALPARAM;
1056     }
1057
1058     lpMidiHdr->lpNext = 0;
1059     lpMidiHdr->dwFlags |= MHDR_PREPARED;
1060     lpMidiHdr->dwFlags &= ~MHDR_DONE;
1061     return MMSYSERR_NOERROR;
1062 }
1063
1064 /**************************************************************************
1065  *                              modUnprepare                    [internal]
1066  */
1067 static DWORD modUnprepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
1068 {
1069     TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
1070
1071     if (midiSeq == NULL) {
1072         WARN("can't unprepare !\n");
1073         return MMSYSERR_NOTENABLED;
1074     }
1075
1076     if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0)
1077         return MMSYSERR_INVALPARAM;
1078     if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
1079         return MIDIERR_STILLPLAYING;
1080     lpMidiHdr->dwFlags &= ~MHDR_PREPARED;
1081     return MMSYSERR_NOERROR;
1082 }
1083
1084 /**************************************************************************
1085  *                      modReset                                [internal]
1086  */
1087 static DWORD modReset(WORD wDevID)
1088 {
1089     unsigned chn;
1090
1091     TRACE("(%04X);\n", wDevID);
1092
1093     if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
1094     if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;
1095
1096     /* stop all notes */
1097     /* FIXME: check if 0x78B0 is channel dependent or not. I coded it so that
1098      * it's channel dependent...
1099      */
1100     for (chn = 0; chn < 16; chn++) {
1101         /* turn off every note */
1102         modData(wDevID, 0x7800 | MIDI_CMD_CONTROL | chn);
1103         /* remove sustain on all channels */
1104         modData(wDevID, (MIDI_CTL_SUSTAIN << 8) | MIDI_CMD_CONTROL | chn);
1105     }
1106     /* FIXME: the LongData buffers must also be returned to the app */
1107     return MMSYSERR_NOERROR;
1108 }
1109
1110
1111 /**************************************************************************
1112  *                      ALSA_AddMidiPort                        [internal]
1113  *
1114  * Helper for ALSA_MidiInit
1115  */
1116 static void ALSA_AddMidiPort(snd_seq_client_info_t* cinfo, snd_seq_port_info_t* pinfo, int cap, int type)
1117 {
1118     if (cap & SND_SEQ_PORT_CAP_WRITE) {
1119         TRACE("OUT (%d:%s:%s:%d:%s:%x)\n",snd_seq_client_info_get_client(cinfo),
1120                                           snd_seq_client_info_get_name(cinfo),
1121                                           snd_seq_client_info_get_type(cinfo) == SND_SEQ_USER_CLIENT ? "user" : "kernel",
1122                                           snd_seq_port_info_get_port(pinfo),
1123                                           snd_seq_port_info_get_name(pinfo),
1124                                           type);
1125
1126         if (MODM_NumDevs >= MAX_MIDIOUTDRV)
1127             return;
1128         if (!type)
1129             return;
1130
1131         memcpy(&MidiOutDev[MODM_NumDevs].addr, snd_seq_port_info_get_addr(pinfo), sizeof(snd_seq_addr_t));
1132
1133         /* Manufac ID. We do not have access to this with soundcard.h
1134          * Does not seem to be a problem, because in mmsystem.h only
1135          * Microsoft's ID is listed.
1136          */
1137         MidiOutDev[MODM_NumDevs].caps.wMid = 0x00FF;
1138         MidiOutDev[MODM_NumDevs].caps.wPid = 0x0001;    /* FIXME Product ID  */
1139         /* Product Version. We simply say "1" */
1140         MidiOutDev[MODM_NumDevs].caps.vDriverVersion = 0x001;
1141         MidiOutDev[MODM_NumDevs].caps.wChannelMask   = 0xFFFF;
1142
1143         /* FIXME Do we have this information?
1144          * Assuming the soundcards can handle
1145          * MIDICAPS_VOLUME and MIDICAPS_LRVOLUME but
1146          * not MIDICAPS_CACHE.
1147          */
1148         MidiOutDev[MODM_NumDevs].caps.dwSupport      = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
1149         MultiByteToWideChar(CP_ACP, 0, snd_seq_client_info_get_name(cinfo), -1,
1150                             MidiOutDev[MODM_NumDevs].caps.szPname,
1151                             sizeof(MidiOutDev[MODM_NumDevs].caps.szPname) / sizeof(WCHAR));
1152
1153         MidiOutDev[MODM_NumDevs].caps.wTechnology = MIDI_AlsaToWindowsDeviceType(type);
1154         MidiOutDev[MODM_NumDevs].caps.wVoices     = 16;
1155
1156         /* FIXME Is it possible to know the maximum
1157          * number of simultaneous notes of a soundcard ?
1158          * I believe we don't have this information, but
1159          * it's probably equal or more than wVoices
1160          */
1161         MidiOutDev[MODM_NumDevs].caps.wNotes = 16;
1162         MidiOutDev[MODM_NumDevs].bEnabled    = TRUE;
1163
1164         TRACE("MidiOut[%d]\tname='%s' techn=%d voices=%d notes=%d chnMsk=%04x support=%d\n"
1165             "\tALSA info: midi dev-type=%lx, capa=%lx\n",
1166               MODM_NumDevs, wine_dbgstr_w(MidiOutDev[MODM_NumDevs].caps.szPname),
1167               MidiOutDev[MODM_NumDevs].caps.wTechnology,
1168               MidiOutDev[MODM_NumDevs].caps.wVoices, MidiOutDev[MODM_NumDevs].caps.wNotes,
1169               MidiOutDev[MODM_NumDevs].caps.wChannelMask, MidiOutDev[MODM_NumDevs].caps.dwSupport,
1170               (long)type, (long)0);
1171
1172         MODM_NumDevs++;
1173     }
1174     if (cap & SND_SEQ_PORT_CAP_READ) {
1175         TRACE("IN  (%d:%s:%s:%d:%s:%x)\n",snd_seq_client_info_get_client(cinfo),
1176                                           snd_seq_client_info_get_name(cinfo),
1177                                           snd_seq_client_info_get_type(cinfo) == SND_SEQ_USER_CLIENT ? "user" : "kernel",
1178                                           snd_seq_port_info_get_port(pinfo),
1179                                           snd_seq_port_info_get_name(pinfo),
1180                                           type);
1181
1182         if (MIDM_NumDevs >= MAX_MIDIINDRV)
1183             return;
1184         if (!type)
1185             return;
1186
1187         memcpy(&MidiInDev[MIDM_NumDevs].addr, snd_seq_port_info_get_addr(pinfo), sizeof(snd_seq_addr_t));
1188
1189         /* Manufac ID. We do not have access to this with soundcard.h
1190          * Does not seem to be a problem, because in mmsystem.h only
1191          * Microsoft's ID is listed.
1192          */
1193         MidiInDev[MIDM_NumDevs].caps.wMid = 0x00FF;
1194         MidiInDev[MIDM_NumDevs].caps.wPid = 0x0001;     /* FIXME Product ID  */
1195         /* Product Version. We simply say "1" */
1196         MidiInDev[MIDM_NumDevs].caps.vDriverVersion = 0x001;
1197
1198         /* FIXME Do we have this information?
1199          * Assuming the soundcards can handle
1200          * MIDICAPS_VOLUME and MIDICAPS_LRVOLUME but
1201          * not MIDICAPS_CACHE.
1202          */
1203         MidiInDev[MIDM_NumDevs].caps.dwSupport      = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
1204         MultiByteToWideChar(CP_ACP, 0, snd_seq_client_info_get_name(cinfo), -1,
1205                             MidiInDev[MIDM_NumDevs].caps.szPname,
1206                             sizeof(MidiInDev[MIDM_NumDevs].caps.szPname) / sizeof(WCHAR));
1207         MidiInDev[MIDM_NumDevs].state = 0;
1208
1209         TRACE("MidiIn [%d]\tname='%s' support=%d\n"
1210               "\tALSA info: midi dev-type=%lx, capa=%lx\n",
1211               MIDM_NumDevs, wine_dbgstr_w(MidiInDev[MIDM_NumDevs].caps.szPname),
1212               MidiInDev[MIDM_NumDevs].caps.dwSupport,
1213               (long)type, (long)0);
1214
1215         MIDM_NumDevs++;
1216     }
1217 }
1218
1219 #endif /* HAVE_ALSA */
1220
1221
1222 /*======================================================================*
1223  *                          MIDI entry points                           *
1224  *======================================================================*/
1225
1226 /**************************************************************************
1227  * ALSA_MidiInit                                [internal]
1228  *
1229  * Initializes the MIDI devices information variables
1230  */
1231 LONG ALSA_MidiInit(void)
1232 {
1233 #ifdef HAVE_ALSA
1234     static      BOOL    bInitDone = FALSE;
1235     snd_seq_client_info_t *cinfo;
1236     snd_seq_port_info_t *pinfo;
1237
1238     if (bInitDone)
1239         return TRUE;
1240
1241     TRACE("Initializing the MIDI variables.\n");
1242     bInitDone = TRUE;
1243
1244     /* try to open device */
1245     if (midiOpenSeq(0) == -1) {
1246         return TRUE;
1247     }
1248
1249 #if 0 /* Debug purpose */
1250     snd_lib_error_set_handler(error_handler);
1251 #endif
1252     cinfo = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_seq_client_info_sizeof() );
1253     pinfo = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_seq_port_info_sizeof() );
1254
1255     /* First, search for all internal midi devices */
1256     snd_seq_client_info_set_client(cinfo, -1);
1257     while(snd_seq_query_next_client(midiSeq, cinfo) >= 0) {
1258         snd_seq_port_info_set_client(pinfo, snd_seq_client_info_get_client(cinfo));
1259         snd_seq_port_info_set_port(pinfo, -1);
1260         while (snd_seq_query_next_port(midiSeq, pinfo) >= 0) {
1261             int cap = snd_seq_port_info_get_capability(pinfo);
1262             int type = snd_seq_port_info_get_type(pinfo);
1263             if (!(type & SND_SEQ_PORT_TYPE_PORT))
1264                 ALSA_AddMidiPort(cinfo, pinfo, cap, type);
1265         }
1266     }
1267
1268     /* Second, search for all external ports */
1269     snd_seq_client_info_set_client(cinfo, -1);
1270     while(snd_seq_query_next_client(midiSeq, cinfo) >= 0) {
1271         snd_seq_port_info_set_client(pinfo, snd_seq_client_info_get_client(cinfo));
1272         snd_seq_port_info_set_port(pinfo, -1);
1273         while (snd_seq_query_next_port(midiSeq, pinfo) >= 0) {
1274             int cap = snd_seq_port_info_get_capability(pinfo);
1275             int type = snd_seq_port_info_get_type(pinfo);
1276             if (type & SND_SEQ_PORT_TYPE_PORT)
1277                 ALSA_AddMidiPort(cinfo, pinfo, cap, type);
1278         }
1279     }
1280
1281     /* close file and exit */
1282     midiCloseSeq();
1283     HeapFree( GetProcessHeap(), 0, cinfo );
1284     HeapFree( GetProcessHeap(), 0, pinfo );
1285
1286     TRACE("End\n");
1287 #endif
1288     return TRUE;
1289 }
1290
1291 /**************************************************************************
1292  *                      midMessage (WINEOSS.4)
1293  */
1294 DWORD WINAPI ALSA_midMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
1295                             DWORD dwParam1, DWORD dwParam2)
1296 {
1297     TRACE("(%04X, %04X, %08X, %08X, %08X);\n",
1298           wDevID, wMsg, dwUser, dwParam1, dwParam2);
1299     switch (wMsg) {
1300 #ifdef HAVE_ALSA
1301     case DRVM_INIT:
1302     case DRVM_EXIT:
1303     case DRVM_ENABLE:
1304     case DRVM_DISABLE:
1305         /* FIXME: Pretend this is supported */
1306         return 0;
1307     case MIDM_OPEN:
1308         return midOpen(wDevID, (LPMIDIOPENDESC)dwParam1, dwParam2);
1309     case MIDM_CLOSE:
1310         return midClose(wDevID);
1311     case MIDM_ADDBUFFER:
1312         return midAddBuffer(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
1313     case MIDM_PREPARE:
1314         return midPrepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
1315     case MIDM_UNPREPARE:
1316         return midUnprepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
1317     case MIDM_GETDEVCAPS:
1318         return midGetDevCaps(wDevID, (LPMIDIINCAPSW)dwParam1,dwParam2);
1319     case MIDM_GETNUMDEVS:
1320         return MIDM_NumDevs;
1321     case MIDM_RESET:
1322         return midReset(wDevID);
1323     case MIDM_START:
1324         return midStart(wDevID);
1325     case MIDM_STOP:
1326         return midStop(wDevID);
1327 #endif
1328     default:
1329         TRACE("Unsupported message\n");
1330     }
1331     return MMSYSERR_NOTSUPPORTED;
1332 }
1333
1334 /**************************************************************************
1335  *                              modMessage (WINEOSS.5)
1336  */
1337 DWORD WINAPI ALSA_modMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
1338                             DWORD dwParam1, DWORD dwParam2)
1339 {
1340     TRACE("(%04X, %04X, %08X, %08X, %08X);\n",
1341           wDevID, wMsg, dwUser, dwParam1, dwParam2);
1342
1343     switch (wMsg) {
1344 #ifdef HAVE_ALSA
1345     case DRVM_INIT:
1346     case DRVM_EXIT:
1347     case DRVM_ENABLE:
1348     case DRVM_DISABLE:
1349         /* FIXME: Pretend this is supported */
1350         return 0;
1351     case MODM_OPEN:
1352         return modOpen(wDevID, (LPMIDIOPENDESC)dwParam1, dwParam2);
1353     case MODM_CLOSE:
1354         return modClose(wDevID);
1355     case MODM_DATA:
1356         return modData(wDevID, dwParam1);
1357     case MODM_LONGDATA:
1358         return modLongData(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
1359     case MODM_PREPARE:
1360         return modPrepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
1361     case MODM_UNPREPARE:
1362         return modUnprepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
1363     case MODM_GETDEVCAPS:
1364         return modGetDevCaps(wDevID, (LPMIDIOUTCAPSW)dwParam1, dwParam2);
1365     case MODM_GETNUMDEVS:
1366         return MODM_NumDevs;
1367     case MODM_GETVOLUME:
1368         return 0;
1369     case MODM_SETVOLUME:
1370         return 0;
1371     case MODM_RESET:
1372         return modReset(wDevID);
1373 #endif
1374     default:
1375         TRACE("Unsupported message\n");
1376     }
1377     return MMSYSERR_NOTSUPPORTED;
1378 }
1379
1380 /*-----------------------------------------------------------------------*/