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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001/2002 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef IMUSE_H
#define IMUSE_H
class IMuseInternal;
class MidiDriver;
class OSystem;
class Scumm;
struct Serializer;
class SoundMixer;
class IMuse {
public:
enum {
PROP_TEMPO_BASE = 1,
};
IMuse() { }
virtual ~IMuse() { };
virtual void on_timer() = 0; // For the MacOS 9 port only
virtual void pause(bool paused) = 0;
virtual int save_or_load(Serializer *ser, Scumm *scumm) = 0;
virtual int set_music_volume(uint vol) = 0;
virtual int get_music_volume() = 0;
virtual int set_master_volume(uint vol) = 0;
virtual int get_master_volume() = 0;
virtual bool start_sound(int sound) = 0;
virtual int stop_sound(int sound) = 0;
virtual int stop_all_sounds() = 0;
virtual int get_sound_status(int sound) = 0;
virtual bool get_sound_active(int sound) = 0;
virtual int32 do_command(int a, int b, int c, int d, int e, int f, int g, int h) = 0;
virtual int clear_queue() = 0;
virtual void setBase(byte **base) = 0;
virtual uint32 property(int prop, uint32 value) = 0;
// Factory methods
static IMuse *create(OSystem *syst, MidiDriver *midi, SoundMixer *mixer);
static IMuse *create_adlib(OSystem *syst, SoundMixer *mixer) {
return create(syst, NULL, mixer);
}
static IMuse *create_midi(OSystem *syst, MidiDriver *midi) {
return create(syst, midi, NULL);
}
};
#define MAX_DIGITAL_CHANNELS 8
#define MAX_IMUSE_JUMPS 1
#define MAX_IMUSE_REGIONS 3
class IMuseDigital {
private:
struct region {
uint32 _offset; // begin of region
uint32 _length; // lenght of region
};
struct jump {
uint32 _offset; // jump position
uint32 _dest; // jump to
uint32 _id; // id of jump
uint32 _numLoops; // allmost 500 except one value: 2
};
struct channel {
int8 _volumeRight;
int8 _volume;
int8 _volumeFade;
int8 _volumeFadeParam;
int8 _volumeFadeStep;
uint32 _delay;
bool _isJump;
uint32 _numLoops;
uint32 _offsetStop;
jump _jump[MAX_IMUSE_JUMPS];
uint32 _numJumps;
region _region[MAX_IMUSE_REGIONS];
uint32 _numRegions;
uint32 _offset;
byte *_data;
uint32 _freq;
uint32 _channels;
uint32 _bits;
uint32 _size;
int32 _idSound;
uint32 _mixerSize;
uint8 _mixerFlags;
bool _used;
bool _toBeRemoved;
bool _initialized;
} _channel[MAX_DIGITAL_CHANNELS];
Scumm *_scumm;
bool _pause;
public:
IMuseDigital(Scumm *scumm);
~IMuseDigital();
void handler();
void startSound(int sound);
void stopSound(int sound);
void stopAll();
void pause(bool pause);
int32 doCommand(int a, int b, int c, int d, int e, int f, int g, int h);
int getSoundStatus(int sound);
};
#endif
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