mirror of
https://github.com/libretro/scummvm.git
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136 lines
3.3 KiB
C++
136 lines
3.3 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 CINE_SOUND_H_
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#define CINE_SOUND_H_
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#include "common/util.h"
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#include "common/mutex.h"
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#include "audio/mixer.h"
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namespace Audio {
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class AudioStream;
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}
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namespace Cine {
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class CineEngine;
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class Sound {
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public:
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Sound(Audio::Mixer *mixer, CineEngine *vm) : _mixer(mixer), _vm(vm) {}
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virtual ~Sound() {}
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virtual void loadMusic(const char *name) = 0;
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virtual void playMusic() = 0;
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virtual void stopMusic() = 0;
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virtual void fadeOutMusic() = 0;
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virtual void playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat) = 0;
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virtual void stopSound(int channel) = 0;
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protected:
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Audio::Mixer *_mixer;
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CineEngine *_vm;
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};
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class PCSoundDriver;
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class PCSoundFxPlayer;
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class PCSound : public Sound {
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public:
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PCSound(Audio::Mixer *mixer, CineEngine *vm);
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virtual ~PCSound();
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virtual void loadMusic(const char *name);
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virtual void playMusic();
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virtual void stopMusic();
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virtual void fadeOutMusic();
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virtual void playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat);
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virtual void stopSound(int channel);
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protected:
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PCSoundDriver *_soundDriver;
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PCSoundFxPlayer *_player;
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};
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class PaulaSound : public Sound {
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public:
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PaulaSound(Audio::Mixer *mixer, CineEngine *vm);
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virtual ~PaulaSound();
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virtual void loadMusic(const char *name);
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virtual void playMusic();
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virtual void stopMusic();
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virtual void fadeOutMusic();
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virtual void playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat);
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virtual void stopSound(int channel);
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enum {
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PAULA_FREQ = 3579545,
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NUM_CHANNELS = 4
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};
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protected:
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struct SfxChannel {
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Audio::SoundHandle handle;
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int volume;
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int volumeStep;
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int curStep;
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int stepCount;
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void initialize(int vol, int volStep, int stepCnt) {
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volume = vol;
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volumeStep = volStep;
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curStep = stepCount = stepCnt;
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}
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};
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SfxChannel _channelsTable[NUM_CHANNELS];
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static const int _channelBalance[NUM_CHANNELS];
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Common::Mutex _sfxMutex;
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int _sfxTimer;
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static void sfxTimerProc(void *param);
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void sfxTimerCallback();
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Common::Mutex _musicMutex;
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int _musicTimer;
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int _musicFadeTimer;
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static void musicTimerProc(void *param);
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void musicTimerCallback();
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Audio::SoundHandle _moduleHandle;
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Audio::AudioStream *_moduleStream;
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};
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extern Sound *g_sound;
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} // End of namespace Cine
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#endif /* CINE_SOUND_H_ */
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