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Add comments about unknown cases and remove unused cases in parseNextEvent().

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svn-id: r31224
This commit is contained in:
Travis Howell 2008-03-23 00:34:39 +00:00
parent c5d48856a3
commit 56711f1489
1 changed files with 48 additions and 20 deletions
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68
engines/agos/midiparser_s1d.cpp
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@ -112,44 +112,72 @@ void MidiParser_S1D::parseNextEvent(EventInfo &info) {
++_position._play_pos; // I have NO IDEA what the second byte is for.
break;
case 0xD:
// Triggered by MOD0/MOD1/MOD2/MOD3/MOD4/MOD6/MOD7/MOD8/MOD9 in Elvira 2
// Triggered by MOD0/MOD2/MOD3/MOD5/MOD6/MOD7/MOD8/MOD9/MOD10/MOD12/MOD14/MOD15/MOD20 in Waxworks
break;
case 0xE:
// Triggered by MOD9 in Elvira 1
// Triggered by MOD3/MOD5 in Elvira 2
// Triggered by MOD3/MOD7/MOD8/MOD13 in Waxworks
break;
case 0xF:
if (info.event == 0xFC) {
debug(0, "MidiParser_S1D: Unexpected type 0x%02X", (int) info.event);
switch (info.event & 0x0F) {
case 0x0:
// Trigged by MOD2/MOD6/MOD15 in Waxworks
break;
case 0x3: // Not sure, Song Select?
// Trigged by MOD1/MOD7/MOD10 in Elvira 1
info.basic.param1 = *(_position._play_pos++);
info.basic.param2 = 0;
break;
case 0x4:
// Trigged by MOD8 in Elvira 1
break;
case 0x7:
// Trigged by MOD6 in Elvira 2
// Trigged by MOD5 in Waxworks
break;
case 0x8: // Not sure, ?
// Trigged by MOD19 in Waxworks
info.basic.param1 = info.basic.param2 = 0;
break;
case 0xA:
// Trigged by MOD5 in Elvira 2
break;
case 0xC:
// This means End of Track.
// Rewrite in SMF (MIDI transmission) form.
info.event = 0xFF;
info.ext.type = 0x2F;
info.length = 0;
break;
}
switch (info.event & 0x0F) {
case 0x2: // Song Position Pointer?
info.basic.param1 = *(_position._play_pos++);
info.basic.param2 = *(_position._play_pos++);
break;
case 0x3: // Song Select?
info.basic.param1 = *(_position._play_pos++);
info.basic.param2 = 0;
break;
case 0x8:
info.basic.param1 = info.basic.param2 = 0;
break;
case 0xF: // META event?
case 0xF: // Not sure, META event?
// Trigged by MOD8/MOD9/MOD11/MOD12/MOD13 in Waxworks
info.ext.type = *(_position._play_pos++);
info.length = readVLQ(_position._play_pos);
info.ext.data = _position._play_pos;
_position._play_pos += info.length;
break;
default:
debug(10, "MidiParser_S1D: Unexpected type 0x%02X found", (int) info.event);
error("MidiParser_S1D: Unexpected type 0x%02X found", (int) info.event);
break;
}
break;
default:
debug(10, "MidiParser_S1D: Unexpected event 0x%02X found", (int) info.command());
error("MidiParser_S1D: Unexpected event 0x%02X found", (int) info.command());
break;
}
}