MidiDriver::DeviceHandle MidiDriver::detectDevice(int flags) {
// Query the selected music device (defaults to MT_AUTO device).
DeviceHandle hdl = getDeviceHandle(ConfMan.get("music_driver"));
_forceTypeMT32 = false;
// Check whether the selected music driver is compatible with the
// given flags.
switch (getMusicType(hdl)) {
case MT_PCSPK:
if (flags & MDT_PCSPK)
return hdl;
break;
case MT_PCJR:
if (flags & MDT_PCJR)
return hdl;
break;
case MT_CMS:
if (flags & MDT_CMS)
return hdl;
break;
case MT_ADLIB:
if (flags & MDT_ADLIB)
return hdl;
break;
case MT_C64:
if (flags & MDT_C64)
return hdl;
break;
case MT_AMIGA:
if (flags & MDT_AMIGA)
return hdl;
break;
case MT_APPLEIIGS:
if (flags & MDT_APPLEIIGS)
return hdl;
break;
case MT_TOWNS:
if (flags & MDT_TOWNS)
return hdl;
break;
case MT_PC98:
if (flags & MDT_PC98)
return hdl;
break;
case MT_GM:
case MT_GS:
case MT_MT32:
if (flags & MDT_MIDI)
return hdl;
break;
case MT_NULL:
return hdl;
default:
break;
}
// If the selected driver did not match the flags setting,
// we try to determine a suitable and "optimal" music driver.
const MusicPlugin::List p = MusicMan.getPlugins();
// If only MDT_MIDI but not MDT_PREFER_MT32 or MDT_PREFER_GM is set we prefer the other devices (which will always be
// detected since they are hard coded and cannot be disabled.
for (int l = (flags & (MDT_PREFER_GM | MDT_PREFER_MT32)) ? 1 : 0; l < 2; ++l) {
if ((flags & MDT_MIDI) && (l == 1)) {
// If a preferred MT32 or GM device has been selected that device gets returned
if (flags & MDT_PREFER_MT32)
hdl = getDeviceHandle(ConfMan.get("mt32_device"));
else if (flags & MDT_PREFER_GM)
hdl = getDeviceHandle(ConfMan.get("gm_device"));
else
hdl = getDeviceHandle("auto");
const MusicType type = getMusicType(hdl);
// If have a "Don't use GM/MT-32" setting we skip this part and jump
// to AdLib, PC Speaker etc. detection right away.
if (type != MT_NULL) {
if (type != MT_AUTO && type != MT_INVALID) {
if (flags & MDT_PREFER_MT32)
// If we have a preferred MT32 device we disable the gm/mt32 mapping (more about this in mididrv.h)
_forceTypeMT32 = true;
return hdl;
}
// If we have no specific device selected (neither in the scummvm nor in the game domain)
// and no preferred MT32 or GM device selected we arrive here.
// If MT32 is preferred we try for the first available device with music type 'MT_MT32' (usually the mt32 emulator)
if (flags & MDT_PREFER_MT32) {
for (MusicPlugin::List::const_iterator m = p.begin(); m != p.end(); ++m) {
MusicDevices i = (**m)->getDevices();
for (MusicDevices::iterator d = i.begin(); d != i.end(); ++d) {
if (d->getMusicType() == MT_MT32)
return d->getHandle();
}
}
}
// Now we default to the first available device with music type 'MT_GM'
for (MusicPlugin::List::const_iterator m = p.begin(); m != p.end(); ++m) {
MusicDevices i = (**m)->getDevices();
for (MusicDevices::iterator d = i.begin(); d != i.end(); ++d) {
if (d->getMusicType() == MT_GM || d->getMusicType() == MT_GS)
return d->getHandle();
}
}
}
}
MusicType tp = MT_AUTO;
if (flags & MDT_TOWNS)
tp = MT_TOWNS;
else if (flags & MDT_PC98)
tp = MT_PC98;
else if (flags & MDT_ADLIB)
tp = MT_ADLIB;
else if (flags & MDT_PCJR)
tp = MT_PCJR;
else if (flags & MDT_PCSPK)
tp = MT_PCSPK;
else if (flags & MDT_C64)
tp = MT_C64;
else if (flags & MDT_AMIGA)
tp = MT_AMIGA;
else if (flags & MDT_APPLEIIGS)
tp = MT_APPLEIIGS;
else if (l == 0)
// if we haven't tried to find a MIDI device yet we do this now.
continue;
else
tp = MT_AUTO;
for (MusicPlugin::List::const_iterator m = p.begin(); m != p.end(); ++m) {
MusicDevices i = (**m)->getDevices();
for (MusicDevices::iterator d = i.begin(); d != i.end(); ++d) {
if (d->getMusicType() == tp)
return d->getHandle();
}
}
}
return 0;
}
MidiDriver::DeviceHandle MidiDriver::detectDevice(int flags) {
// Query the selected music device (defaults to MT_AUTO device).
Common::String selDevStr = ConfMan.hasKey("music_driver") ? ConfMan.get("music_driver") : Common::String("auto");
DeviceHandle hdl = getDeviceHandle(selDevStr.empty() ? Common::String("auto") : selDevStr);
DeviceHandle reslt = 0;
_forceTypeMT32 = false;
// Check whether the selected music driver is compatible with the
// given flags.
switch (getMusicType(hdl)) {
case MT_PCSPK:
if (flags & MDT_PCSPK)
reslt = hdl;
break;
case MT_PCJR:
if (flags & MDT_PCJR)
reslt = hdl;
break;
case MT_CMS:
if (flags & MDT_CMS)
reslt = hdl;
break;
case MT_ADLIB:
if (flags & MDT_ADLIB)
reslt = hdl;
break;
case MT_C64:
if (flags & MDT_C64)
reslt = hdl;
break;
case MT_AMIGA:
if (flags & MDT_AMIGA)
reslt = hdl;
break;
case MT_APPLEIIGS:
if (flags & MDT_APPLEIIGS)
reslt = hdl;
break;
case MT_TOWNS:
if (flags & MDT_TOWNS)
reslt = hdl;
break;
case MT_PC98:
if (flags & MDT_PC98)
reslt = hdl;
break;
case MT_GM:
case MT_GS:
case MT_MT32:
if (flags & MDT_MIDI)
reslt = hdl;
break;
case MT_NULL:
reslt = hdl;
break;
default:
break;
}
Common::String failedDevStr;
if (getMusicType(hdl) == MT_INVALID) {
// If the expressly selected driver or device cannot be found (no longer compiled in, turned off, etc.)
// we display a warning and continue.
failedDevStr = selDevStr;
Common::String warningMsg = Common::String::format(_("The selected audio device '%s' was not found (e.g. might be turned off or disconnected)."), failedDevStr.c_str()) + " " + _("Attempting to fall back to the next available device...");
GUI::MessageDialog dialog(warningMsg);
dialog.runModal();
}
MusicType tp = getMusicType(reslt);
if (tp != MT_INVALID && tp != MT_AUTO) {
if (checkDevice(reslt)) {
return reslt;
} else {
// If the expressly selected device cannot be used we display a warning and continue.
failedDevStr = getDeviceString(hdl, MidiDriver::kDeviceName);
Common::String warningMsg = Common::String::format(_("The selected audio device '%s' cannot be used. See log file for more information."), failedDevStr.c_str()) + " " + _("Attempting to fall back to the next available device...");
GUI::MessageDialog dialog(warningMsg);
dialog.runModal();
}
}
// If the selected driver did not match the flags setting,
// we try to determine a suitable and "optimal" music driver.
const MusicPlugin::List p = MusicMan.getPlugins();
// If only MDT_MIDI but not MDT_PREFER_MT32 or MDT_PREFER_GM is set we prefer the other devices (which will always be
// detected since they are hard coded and cannot be disabled).
bool skipMidi = !(flags & (MDT_PREFER_GM | MDT_PREFER_MT32));
while (flags != MDT_NONE) {
if ((flags & MDT_MIDI) && !skipMidi) {
// If a preferred MT32 or GM device has been selected that device gets returned if available.
Common::String devStr;
if (flags & MDT_PREFER_MT32)
devStr = ConfMan.hasKey("mt32_device") ? ConfMan.get("mt32_device") : Common::String("null");
else if (flags & MDT_PREFER_GM)
devStr = ConfMan.hasKey("gm_device") ? ConfMan.get("gm_device") : Common::String("null");
else
devStr = "auto";
// Default to Null device here, since we also register a default null setting for
// the MT32 or GM device in the config manager.
hdl = getDeviceHandle(devStr.empty() ? Common::String("null") : devStr);
const MusicType type = getMusicType(hdl);
// If we have a "Don't use GM/MT-32" setting we skip this part and jump
// to AdLib, PC Speaker etc. detection right away.
if (type != MT_NULL) {
if (type == MT_INVALID) {
// If the preferred (expressly requested) selected driver or device cannot be found (no longer compiled in, turned off, etc.)
// we display a warning and continue. Don't warn about the missing device if we did already (this becomes relevant if the
// missing device is selected as preferred device and also as GM or MT-32 device).
if (failedDevStr != devStr) {
Common::String warningMsg = Common::String::format(_("The preferred audio device '%s' was not found (e.g. might be turned off or disconnected)."), devStr.c_str()) + " " + _("Attempting to fall back to the next available device...");
GUI::MessageDialog dialog(warningMsg);
dialog.runModal();
}
} else if (type != MT_AUTO) {
if (checkDevice(hdl)) {
if (flags & MDT_PREFER_MT32)
// If we have a preferred MT32 device we disable the gm/mt32 mapping (more about this in mididrv.h).
_forceTypeMT32 = true;
return hdl;
} else {
// If the preferred (expressly requested) device cannot be used we display a warning and continue.
// Don't warn about the failing device if we did already (this becomes relevant if the failing
// device is selected as preferred device and also as GM or MT-32 device).
if (failedDevStr != getDeviceString(hdl, MidiDriver::kDeviceName)) {
Common::String warningMsg = Common::String::format(_("The preferred audio device '%s' cannot be used. See log file for more information."), getDeviceString(hdl, MidiDriver::kDeviceName).c_str()) + " " + _("Attempting to fall back to the next available device...");
GUI::MessageDialog dialog(warningMsg);
dialog.runModal();
}
}
}
// If no specific device is selected (neither in the scummvm nor in the game domain)
// and there is no preferred MT32 or GM device selected either or if the detected device is unavailable we arrive here.
// If MT32 is preferred we try for the first available device with music type 'MT_MT32' (usually the mt32 emulator).
if (flags & MDT_PREFER_MT32) {
for (MusicPlugin::List::const_iterator m = p.begin(); m != p.end(); ++m) {
MusicDevices i = (**m)->getDevices();
for (MusicDevices::iterator d = i.begin(); d != i.end(); ++d) {
if (d->getMusicType() == MT_MT32) {
hdl = d->getHandle();
if (checkDevice(hdl))
return hdl;
}
}
}
}
// Now we default to the first available device with music type 'MT_GM' if not
// MT-32 is preferred or if MT-32 is preferred but all other devices have failed.
if (!(flags & MDT_PREFER_MT32) || flags == (MDT_PREFER_MT32 | MDT_MIDI)) {
for (MusicPlugin::List::const_iterator m = p.begin(); m != p.end(); ++m) {
MusicDevices i = (**m)->getDevices();
for (MusicDevices::iterator d = i.begin(); d != i.end(); ++d) {
if (d->getMusicType() == MT_GM || d->getMusicType() == MT_GS) {
hdl = d->getHandle();
if (checkDevice(hdl))
return hdl;
}
}
}
// Detection flags get removed after final detection attempt to avoid further attempts.
flags &= ~(MDT_MIDI | MDT_PREFER_GM | MDT_PREFER_MT32);
}
}
}
// The order in this list is important, since this is the order of preference
// (e.g. MT_ADLIB is checked before MT_PCJR and MT_PCSPK for a good reason).
// Detection flags get removed after detection attempt to avoid further attempts.
if (flags & MDT_TOWNS) {
tp = MT_TOWNS;
flags &= ~MDT_TOWNS;
} else if (flags & MDT_PC98) {
tp = MT_PC98;
flags &= ~MDT_PC98;
} else if (flags & MDT_ADLIB) {
tp = MT_ADLIB;
flags &= ~MDT_ADLIB;
} else if (flags & MDT_PCJR) {
tp = MT_PCJR;
flags &= ~MDT_PCJR;
} else if (flags & MDT_PCSPK) {
tp = MT_PCSPK;
flags &= ~MDT_PCSPK;
} else if (flags & MDT_C64) {
tp = MT_C64;
flags &= ~MDT_C64;
} else if (flags & MDT_AMIGA) {
tp = MT_AMIGA;
flags &= ~MDT_AMIGA;
} else if (flags & MDT_APPLEIIGS) {
tp = MT_APPLEIIGS;
flags &= ~MDT_APPLEIIGS;
} else if (flags & MDT_MIDI) {
// If we haven't tried to find a MIDI device yet we do this now.
skipMidi = false;
continue;
} else if (flags) {
// Invalid flags. Set them to MDT_NONE to leave detection loop.
flags = MDT_NONE;
tp = MT_AUTO;
}
for (MusicPlugin::List::const_iterator m = p.begin(); m != p.end(); ++m) {
MusicDevices i = (**m)->getDevices();
for (MusicDevices::iterator d = i.begin(); d != i.end(); ++d) {
if (d->getMusicType() == tp) {
hdl = d->getHandle();
if (checkDevice(hdl))
return hdl;
}
}
}
}
return 0;
}
