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Added what I hope is the proper fix for bug #1498785 ("LOOM: Unknown Roland

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MIDI music events"). It would probably be safe to commit to the 0.11 branch,
but I don't know for sure which games would be affected other than EGA Loom.

svn-id: r30132
This commit is contained in:
Torbjörn Andersson 2008-01-01 23:30:29 +00:00
parent 86aeae4a74
commit 46368eac5f
1 changed files with 12 additions and 1 deletions
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13
engines/scumm/midiparser_ro.cpp
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@ -69,9 +69,20 @@ void MidiParser_RO::parseNextEvent (EventInfo &info) {
if (info.command() == 0xA) {
++_lastMarkerCount;
info.event = 0xF0;
} else if (info.event == 0xF0) {
} else if (info.command() == 0xF) {
byte delay = *(_position._play_pos++);
info.delta += delay;
if (info.event != 0xF0) {
// The event is usually 0xF0 but there are a
// few cases in EGA Loom where it's 0xF1. I'm
// speculating that this is for adding values
// greater than 255 to info.delta. See bug
// #1498785.
//
// The actual calculation is pure guesswork,
// but the result sounds good enough to me.
info.delta += 256;
}
continue;
}
break;