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f0c1d8dcc4
For old savegames, we now use a "dummy" iMUSE objet to skip the old iMUSE save state. I had hoped to be able to do this without making any changes to the iMUSE code itself, but I was unable to. Also added note about how the save state for the new music will not quite work if the mixer output rate changes. Personally, I'm not too worried about that. It breaks, but it shouldn't break badly.
86 lines
2.5 KiB
C++
86 lines
2.5 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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* 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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* 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 SCUMM_IMUSE_H
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#define SCUMM_IMUSE_H
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#include "common/scummsys.h"
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#include "common/mutex.h"
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#include "scumm/music.h"
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class MidiDriver;
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class OSystem;
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namespace Scumm {
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class IMuseInternal;
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class Player;
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class ScummEngine;
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class Serializer;
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typedef void (*sysexfunc)(Player *, const byte *, uint16);
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/**
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* iMuse implementation interface.
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* MusicEngine derivative for state-tracked, interactive,
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* persistent event-based music playback and control.
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* This class serves as an interface to actual implementations
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* so that client code is not exposed to the details of
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* any specific implementation.
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*/
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class IMuse : public MusicEngine {
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public:
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enum {
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PROP_TEMPO_BASE,
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PROP_NATIVE_MT32,
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PROP_GS,
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PROP_LIMIT_PLAYERS,
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PROP_RECYCLE_PLAYERS,
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PROP_GAME_ID,
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PROP_PC_SPEAKER
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};
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public:
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virtual void on_timer(MidiDriver *midi) = 0;
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virtual void pause(bool paused) = 0;
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virtual int save_or_load(Serializer *ser, ScummEngine *scumm, bool fixAfterLoad = true) = 0;
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virtual bool get_sound_active(int sound) const = 0;
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virtual int32 doCommand(int numargs, int args[]) = 0;
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virtual int clear_queue() = 0;
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virtual uint32 property(int prop, uint32 value) = 0;
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virtual void addSysexHandler(byte mfgID, sysexfunc handler) = 0;
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public:
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virtual void startSoundWithNoteOffset(int sound, int offset) = 0;
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// MusicEngine base class methods.
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// Not actually redefined here because none are implemented.
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public:
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// Factory methods
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static IMuse *create(OSystem *syst, MidiDriver *nativeMidiDriver, MidiDriver *adlibMidiDriver);
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};
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} // End of namespace Scumm
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#endif
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