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https://github.com/libretro/scummvm.git
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108 lines
3.1 KiB
C++
108 lines
3.1 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SKY_MUSIC_ADLIBCHANNEL_H
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#define SKY_MUSIC_ADLIBCHANNEL_H
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#include "sky/music/musicbase.h"
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#include "audio/fmopl.h"
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namespace Sky {
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typedef struct {
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uint8 ad_Op1, ad_Op2;
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uint8 sr_Op1, sr_Op2;
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uint8 ampMod_Op1, ampMod_Op2;
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uint8 waveSelect_Op1, waveSelect_Op2;
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uint8 bindedEffect;
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uint8 feedBack;
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uint8 totOutLev_Op1, totOutLev_Op2;
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uint8 scalingLevel;
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uint8 pad1, pad2, pad3;
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} InstrumentStruct;
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typedef struct {
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uint16 eventDataPtr;
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int32 nextEventTime;
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uint16 loopPoint;
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uint8 adlibChannelNumber;
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uint8 lastCommand;
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bool channelActive;
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uint8 note;
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uint8 adlibReg1, adlibReg2;
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InstrumentStruct *instrumentData;
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uint8 assignedInstrument;
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uint8 channelVolume;
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uint8 padding; // field_12 / not used by original driver
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uint8 tremoVibro;
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uint8 freqOffset;
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uint16 frequency;
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} AdLibChannelType;
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class AdLibChannel : public ChannelBase {
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public:
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AdLibChannel (FM_OPL *opl, uint8 *pMusicData, uint16 startOfData);
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virtual ~AdLibChannel();
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virtual uint8 process(uint16 aktTime);
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virtual void updateVolume(uint16 pVolume);
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virtual bool isActive();
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private:
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FM_OPL *_opl;
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uint8 *_musicData;
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AdLibChannelType _channelData;
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InstrumentStruct *_instruments;
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uint16 *_frequenceTable;
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uint8 *_instrumentMap;
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uint8 *_registerTable, *_opOutputTable;
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uint8 *_adlibRegMirror;
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// normal subs
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void setRegister(uint8 regNum, uint8 value);
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int32 getNextEventTime();
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uint16 getNextNote(uint8 param);
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void adlibSetupInstrument();
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void setupInstrument(uint8 opcode);
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void setupChannelVolume(uint8 volume);
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void stopNote();
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// Streamfunctions from Command90hTable
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void com90_caseNoteOff(); // 0
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void com90_stopChannel(); // 1
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void com90_setupInstrument(); // 2
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uint8 com90_updateTempo(); // 3
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//void com90_dummy(); // 4
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void com90_getFreqOffset(); // 5
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void com90_getChannelVolume(); // 6
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void com90_getTremoVibro(); // 7
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void com90_loopMusic(); // 8
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void com90_keyOff(); // 9
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//void com90_error(); // 10
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//void com90_doLodsb(); // 11
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void com90_setLoopPoint(); // 12
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//void com90_do_two_Lodsb(); // 13
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};
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} // End of namespace Sky
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#endif //ADLIBCHANNEL_H
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