mirror of
https://github.com/libretro/scummvm.git
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126 lines
3.1 KiB
C++
126 lines
3.1 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001/2002 The ScummVM project
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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class IMuseInternal;
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class MidiDriver;
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class IMuse {
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public:
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enum {
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PROP_TEMPO_BASE = 1,
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};
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IMuse();
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~IMuse();
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void on_timer(); // For the MacOS 9 port only
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void pause(bool paused);
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int save_or_load(Serializer *ser, Scumm *scumm);
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int set_music_volume(uint vol);
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int get_music_volume();
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int set_master_volume(uint vol);
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int get_master_volume();
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bool start_sound(int sound);
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int stop_sound(int sound);
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int stop_all_sounds();
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int get_sound_status(int sound);
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int32 do_command(int a, int b, int c, int d, int e, int f, int g, int h);
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int clear_queue();
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void setBase(byte **base);
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uint32 property(int prop, uint32 value);
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static IMuse *create(OSystem *syst, MidiDriver *midi, SoundMixer *mixer);
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static IMuse *create_adlib(OSystem *syst, SoundMixer *mixer) {
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return create(syst, NULL, mixer);
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}
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static IMuse *create_midi(OSystem *syst, MidiDriver *midi) {
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return create(syst, midi, NULL);
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}
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private:
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IMuseInternal *_imuse; // Pointer to the real imuse object
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};
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#define MAX_DIGITAL_CHANNELS 8
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#define MAX_IMUSE_JUMPS 1
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#define MAX_IMUSE_REGIONS 3
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class IMuseDigital {
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private:
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struct region {
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uint32 _offset; // begin of region
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uint32 _length; // lenght of region
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};
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struct jump {
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uint32 _offset; // jump position
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uint32 _dest; // jump to
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uint32 _id; // id of jump
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uint32 _numLoops; // allmost 500 except one value: 2
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};
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struct channel {
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int8 _volumeRight;
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int8 _volume;
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int8 _volumeFade;
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int8 _volumeFadeParam;
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int8 _volumeFadeStep;
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uint32 _delay;
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bool _isJump;
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uint32 _numLoops;
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uint32 _offsetStop;
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jump _jump[MAX_IMUSE_JUMPS];
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uint32 _numJumps;
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region _region[MAX_IMUSE_REGIONS];
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uint32 _numRegions;
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uint32 _offset;
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byte *_data;
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uint32 _freq;
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uint32 _channels;
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uint32 _bits;
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uint32 _size;
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int32 _idSound;
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uint32 _mixerSize;
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uint8 _mixerFlags;
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bool _used;
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bool _toBeRemoved;
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bool _initialized;
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} _channel[MAX_DIGITAL_CHANNELS];
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Scumm * _scumm;
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bool _pause;
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public:
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IMuseDigital(Scumm *scumm);
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~IMuseDigital();
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void handler();
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void startSound(int sound);
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void stopSound(int sound);
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void stopAll();
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void pause(bool pause);
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int32 doCommand(int a, int b, int c, int d, int e, int f, int g, int h);
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int getSoundStatus(int sound);
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};
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