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debe30b25e
Type 1 SMF files consist of multiple tracks that are to be played simultaneously in parallel. Support for this was previously implemented by merging these tracks into one single track, then treating the result as a regular type 0 SMF file. This commit adds full support for type 1 files. The parallel tracks are loaded as subtracks of the parent track and played simultaneously in real time. This allows for support of MIDI formats with parallel subtracks that do not use the SMF format (Dark Seed floppy version) or that jump to offsets within each parallel subtrack (Origin MIDI).
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef AGOS_MIDIPARSER_SIMONWIN_H
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#define AGOS_MIDIPARSER_SIMONWIN_H
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#include "audio/midiparser_smf.h"
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#include "common/stream.h"
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namespace AGOS {
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/**
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* Parser for the MIDI data of the Windows versions of Simon The Sorcerer 1
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* and 2. This consists of 1 or more type 1 SMF files, preceded by a byte
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* indicating the number of files. The MIDI data for Simon 1 also has broken
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* pitch bend events, as well as incorrect tempos, which are corrected by this
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* parser.
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*/
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class MidiParser_SimonWin : public MidiParser_SMF {
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protected:
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static const uint8 MAXIMUM_TRACKS = 16;
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public:
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int32 determineDataSize(Common::SeekableReadStream *stream) override;
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MidiParser_SimonWin(int8 source = -1, bool useDosTempos = false);
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void setTempo(uint32 tempo) override;
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bool loadMusic(byte *data, uint32 size) override;
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protected:
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void parseNextEvent(EventInfo &info) override;
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bool _useDosTempos;
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};
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} // End of namespace AGOS
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#endif
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