58 lines
1.9 KiB
C++
58 lines
1.9 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 AUDIO_ADLIB_HMISOS_H
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#define AUDIO_ADLIB_HMISOS_H
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#include "audio/adlib_ms.h"
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#include "common/stream.h"
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/**
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* General MIDI AdLib driver based on HMI Sound Operating System version dated 1994-11-27
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* (as used by The Riddle Of Master Lu).
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*
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* Currently, only instrument bank loading is implemented.
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* TODO:
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* - Frequency calculation
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* - Level calculation
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* - Channel allocation
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* - Controller 0x66 (pitch bend range)
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*/
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class MidiDriver_ADLIB_HMISOS : public MidiDriver_ADLIB_Multisource {
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public:
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static const byte INSTRUMENT_BANK_SIGNATURE[8];
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MidiDriver_ADLIB_HMISOS(OPL::Config::OplType oplType, int timerFrequency = OPL::OPL::kDefaultCallbackFrequency);
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~MidiDriver_ADLIB_HMISOS() {};
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int open() override;
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bool loadInstrumentBanks(Common::SeekableReadStream *instrumentBankStream, Common::SeekableReadStream *rhythmBankStream = nullptr);
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protected:
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int loadInstrumentBank(Common::SeekableReadStream *instrumentBankStream, bool rhythmBank);
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OplInstrumentDefinition _sosInstrumentBank[128];
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OplInstrumentDefinition _sosRhythmBank[128];
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};
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#endif
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