[Scummvm-devel] MDT_PREFER_MT32 and MDT_PREFER_GM

[Filippos Karapetis]

Slight update on this... after the discussion in September 2010, there was a
commit for this:
https://github.com/scummvm/scummvm/commit/0db700a3dced67c607c9e9719ea22347612ead40

<https://github.com/scummvm/scummvm/commit/0db700a3dced67c607c9e9719ea22347612ead40>I
deleted my settings file, which left everything at default in the Audio tab,
"Don't use
General MIDI music" in the MIDI tab and "Don't use Roland MT-32 music" in
the
MT-32 tab. Still, with these settings, the following piece of code returns
MT-32
for musicType:

uint32 deviceFlags = MDT_PCSPK | MDT_PCJR | MDT_ADLIB | MDT_MIDI |
MDT_PREFER_MT32;
uint32 dev = MidiDriver::detectDevice(deviceFlags);
MusicType _musicType = MidiDriver::getMusicType(dev);

That shouldn't happen... with the aforementioned default settings in the
GUI, it
should return MT_ADLIB...

Regards
Filippos

On Tue, Mar 1, 2011 at 10:50 AM, Filippos Karapetis <bluegr at gmail.com>wrote:

> Hello
>
> I checked a bit the usage of MDT_PREFER_MT32 and MDT_PREFER_GM,
> and updated the comments concerning them.
>
> Currently, MDT_PREFER_MT32 is a bit problematic. If the default audio
> settings are used, and an engine defines MDT_PREFER_MT32, then on
> desktop systems the Munt emulator is selected as a "best/preferred" device
> (unless a real MT-32 device is present).
>
> This isn't ideal IMHO, since it basically forces people to use Munt. Users
> who haven't changed their music settings will probably not even know what
> Munt is, and will be confused by the cryptic "you need XXX roms images" in
> order to get it working.
>
> The situation is a bit similar with MDT_PREFER_GM, but I consider this one
> a "feature", as it'll pick up a GM MIDI device with the default music
> settings,
> and most modern systems have GM MIDI capabilities. Thus, this one will
> actually pick up a "good" setting in the games that want it, without
> forcing
> the user to use Munt.
>
> Therefore, I'm a bit baffled by the actual usage of MDT_PREFER_MT32... why
> is
> this needed at all, other than to force people to use Munt with the default
> audio settings? If a game engine requests MIDI output with MT-32 by
> default, and
> the default settings can't handle that, wouldn't it be a better idea to
> switch to the
> Adlib emulator by default, instead of Munt? IMHO, Munt shouldn't fire up
> with the
> default settings, cause this is mostly confusing for people who don't know
> what
> it is and get a dialog to provide ROM files which they probably don't
> have...
>
> Regards
> Filippos
>
> --
> "Experience is the name every one gives to their mistakes" - Oscar Wilde
>



-- 
"Experience is the name every one gives to their mistakes" - Oscar Wilde
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