The default source neutral volume for the Miles MIDI driver is set at 256.
However, the default source volume was the same as that of the regular MT-32/GM
driver: 255. This would cause a small volume decrease if a game did not set
source volume.
This commit fixes this issue by setting the default source volume for the Miles
MIDI driver at 256.
The ScummVM Miles AdLib driver would write some different initialization values
to the OPL registers than the original Miles drivers did. The most significant
difference was the amplitude and vibrato depth.
This commit changes the Miles AdLib driver to set the same values as the
original drivers. It also adds support for initializing a dual OPL2
configuration.
Miles 2 uses the default MT-32 pitch bend range of 12 semitones for its AdLib
driver. Miles 3 switched to the default GM pitch bend range of 2 semitones for
AdLib. ScummVM would always use the Miles 2 pitch bend range, which caused
pitch bend for Miles 3 games to sound wrong on AdLib.
To fix this, a property was added to the Miles AdLib driver to specify which
Miles version to emulate. Depending on the value of this option, the correct
default pitch bend range is set.
a52_init() unconditionally calls a52_imdct_init(), which prints "No
accelerated IMDCT transform found". This interferes with the normals
configure output, which looks like this:
Checking for liba52... No accelerated IMDCT transform found
yes
(final fix for ticket no. 3215 ("SCUMM: Zak McKracken - intro behavior + movement")
The ticket has been closed a couple weeks ago, since a user claimed that the intro was fully fixed. And it mostly was. Except one little thing about the movement of the floating hat which, after chasing Zak, would return to the left of the screen one step to early.
Turns out that o2_waitForActor() got triggered one step to early, because we didn't set the final MF_TURN flag...
