Sweden-Number/multimedia/init.c

250 lines
7.7 KiB
C

/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* Initialization procedures for multimedia
*
* Copyright 1998 Luiz Otavio L. Zorzella
*/
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "windows.h"
#include "multimedia.h"
#include "mmsystem.h"
#include "xmalloc.h"
#include "debug.h"
#ifdef HAVE_OSS
extern int MODM_NUMDEVS;
extern int MODM_NUMFMSYNTHDEVS;
extern int MODM_NUMMIDIDEVS;
extern LPMIDIOUTCAPS16 midiOutDevices[MAX_MIDIOUTDRV];
extern int MIDM_NUMDEVS;
extern LPMIDIINCAPS16 midiInDevices [MAX_MIDIINDRV];
#endif
/**************************************************************************
* unixToWindowsDeviceType [internal]
*
* return the Windows equivalent to a Unix Device Type
*
*/
#ifdef HAVE_OSS
int unixToWindowsDeviceType(int type)
{
/* MOD_MIDIPORT output port
* MOD_SYNTH generic internal synth
* MOD_SQSYNTH square wave internal synth
* MOD_FMSYNTH FM internal synth
* MOD_MAPPER MIDI mapper
*/
/* FIXME Is this really the correct equivalence from UNIX to
Windows Sound type */
switch (type) {
case SYNTH_TYPE_FM: return MOD_FMSYNTH;
case SYNTH_TYPE_SAMPLE: return MOD_SYNTH;
case SYNTH_TYPE_MIDI: return MOD_MIDIPORT;
default:
ERR(midi, "Cannot determine the type of this midi device. "
"Assuming FM Synth\n");
return MOD_FMSYNTH;
}
}
#endif
/**************************************************************************
* MultimediaInit [internal]
*
* Initializes the MIDI devices information variables
*
*/
BOOL32 MULTIMEDIA_Init(void)
{
#ifdef HAVE_OSS
int i, status, numsynthdevs = 255, nummididevs = 255;
struct synth_info sinfo;
struct midi_info minfo;
int fd; /* file descriptor for MIDI_SEQ */
TRACE(midi, "Initializing the MIDI variables.\n");
/* try to open device */
/* FIXME: should use function midiOpenSeq() in midi.c */
fd = open(MIDI_SEQ, O_WRONLY);
if (fd == -1) {
TRACE(midi, "No sequencer found: unable to open `%s'.\n", MIDI_SEQ);
return TRUE;
}
/* find how many Synth devices are there in the system */
status = ioctl(fd, SNDCTL_SEQ_NRSYNTHS, &numsynthdevs);
if (status == -1) {
ERR(midi, "ioctl for nr synth failed.\n");
close(fd);
return TRUE;
}
if (numsynthdevs > MAX_MIDIOUTDRV) {
ERR(midi, "MAX_MIDIOUTDRV (%d) was enough for the number of devices (%d). "
"Some FM devices will not be available.\n",MAX_MIDIOUTDRV,numsynthdevs);
numsynthdevs = MAX_MIDIOUTDRV;
}
for (i = 0; i < numsynthdevs; i++) {
LPMIDIOUTCAPS16 tmplpCaps;
sinfo.device = i;
status = ioctl(fd, SNDCTL_SYNTH_INFO, &sinfo);
if (status == -1) {
ERR(midi, "ioctl for synth info failed.\n");
close(fd);
return TRUE;
}
tmplpCaps = xmalloc(sizeof(MIDIOUTCAPS16));
/* We also have the information sinfo.synth_subtype, not used here
*/
/* Manufac ID. We do not have access to this with soundcard.h
* Does not seem to be a problem, because in mmsystem.h only
* Microsoft's ID is listed.
*/
tmplpCaps->wMid = 0x00FF;
tmplpCaps->wPid = 0x0001; /* FIXME Product ID */
/* Product Version. We simply say "1" */
tmplpCaps->vDriverVersion = 0x001;
strcpy(tmplpCaps->szPname, sinfo.name);
tmplpCaps->wTechnology = unixToWindowsDeviceType(sinfo.synth_type);
tmplpCaps->wVoices = sinfo.nr_voices;
/* FIXME Is it possible to know the maximum
* number of simultaneous notes of a soundcard ?
* I believe we don't have this information, but
* it's probably equal or more than wVoices
*/
tmplpCaps->wNotes = sinfo.nr_voices;
/* FIXME Do we have this information?
* Assuming the soundcards can handle
* MIDICAPS_VOLUME and MIDICAPS_LRVOLUME but
* not MIDICAPS_CACHE.
*/
tmplpCaps->dwSupport = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
midiOutDevices[i] = tmplpCaps;
if (sinfo.capabilities & SYNTH_CAP_INPUT) {
FIXME(midi, "Synthetizer support MIDI in. Not supported yet (please report)\n");
}
TRACE(midi, "name='%s', techn=%d voices=%d notes=%d support=%ld\n",
tmplpCaps->szPname, tmplpCaps->wTechnology,
tmplpCaps->wVoices, tmplpCaps->wNotes, tmplpCaps->dwSupport);
TRACE(midi,"OSS info: synth subtype=%d capa=%Xh\n",
sinfo.synth_subtype, sinfo.capabilities);
}
/* find how many MIDI devices are there in the system */
status = ioctl(fd, SNDCTL_SEQ_NRMIDIS, &nummididevs);
if (status == -1) {
ERR(midi, "ioctl on nr midi failed.\n");
return TRUE;
}
/* FIXME: the two restrictions below could be loosen in some cases */
if (numsynthdevs + nummididevs > MAX_MIDIOUTDRV) {
ERR(midi, "MAX_MIDIOUTDRV was not enough for the number of devices. "
"Some MIDI devices will not be available.\n");
nummididevs = MAX_MIDIOUTDRV - numsynthdevs;
}
if (nummididevs > MAX_MIDIINDRV) {
ERR(midi, "MAX_MIDIINDRV (%d) was not enough for the number of devices (%d). "
"Some MIDI devices will not be available.\n",MAX_MIDIINDRV,nummididevs);
nummididevs = MAX_MIDIINDRV;
}
for (i = 0; i < nummididevs; i++) {
LPMIDIOUTCAPS16 tmplpOutCaps;
LPMIDIINCAPS16 tmplpInCaps;
minfo.device = i;
status = ioctl(fd, SNDCTL_MIDI_INFO, &minfo);
if (status == -1) {
ERR(midi, "ioctl on midi info failed.\n");
close(fd);
return TRUE;
}
tmplpOutCaps = xmalloc(sizeof(MIDIOUTCAPS16));
/* This whole part is somewhat obscure to me. I'll keep trying to dig
info about it. If you happen to know, please tell us. The very
descritive minfo.dev_type was not used here.
*/
/* Manufac ID. We do not have access to this with soundcard.h
Does not seem to be a problem, because in mmsystem.h only
Microsoft's ID is listed */
tmplpOutCaps->wMid = 0x00FF;
tmplpOutCaps->wPid = 0x0001; /* FIXME Product ID */
/* Product Version. We simply say "1" */
tmplpOutCaps->vDriverVersion = 0x001;
strcpy(tmplpOutCaps->szPname, minfo.name);
tmplpOutCaps->wTechnology = MOD_MIDIPORT; /* FIXME Is this right? */
/* Does it make any difference? */
tmplpOutCaps->wVoices = 16;
/* Does it make any difference? */
tmplpOutCaps->wNotes = 16;
/* FIXME Does it make any difference? */
tmplpOutCaps->dwSupport = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
midiOutDevices[numsynthdevs + i] = tmplpOutCaps;
tmplpInCaps = xmalloc(sizeof(MIDIOUTCAPS16));
/* This whole part is somewhat obscure to me. I'll keep trying to dig
info about it. If you happen to know, please tell us. The very
descritive minfo.dev_type was not used here.
*/
/* Manufac ID. We do not have access to this with soundcard.h
Does not seem to be a problem, because in mmsystem.h only
Microsoft's ID is listed */
tmplpInCaps->wMid = 0x00FF;
tmplpInCaps->wPid = 0x0001; /* FIXME Product ID */
/* Product Version. We simply say "1" */
tmplpInCaps->vDriverVersion = 0x001;
strcpy(tmplpInCaps->szPname, minfo.name);
/* FIXME : could we get better information than that ? */
tmplpInCaps->dwSupport = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
midiInDevices[i] = tmplpInCaps;
TRACE(midi,"name='%s' techn=%d voices=%d notes=%d support=%ld\n",
tmplpOutCaps->szPname, tmplpOutCaps->wTechnology, tmplpOutCaps->wVoices,
tmplpOutCaps->wNotes, tmplpOutCaps->dwSupport);
TRACE(midi,"OSS info: midi dev-type=%d, capa=%d\n",
minfo.dev_type, minfo.capabilities);
}
/* windows does not seem to differentiate Synth from MIDI devices */
MODM_NUMFMSYNTHDEVS = numsynthdevs;
MODM_NUMMIDIDEVS = nummididevs;
MODM_NUMDEVS = numsynthdevs + nummididevs;
MIDM_NUMDEVS = nummididevs;
/* close file and exit */
close(fd);
#endif /* HAVE_OSS */
return TRUE;
}