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// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
// *
// * 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 3 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, see http://www.gnu.org/licenses/.
/**
* \file alsound.h
* \brief OpenAL implementation of sound system
*/
#pragma once
#include "common/logger.h"
#include "sound/sound.h"
#include "sound/oalsound/buffer.h"
#include "sound/oalsound/channel.h"
#include "sound/oalsound/check.h"
#include <map>
#include <string>
#include <list>
#include <al.h>
struct OldMusic {
Channel* music;
float fadeTime;
float currentTime;
};
class ALSound : public CSoundInterface
{
public:
ALSound();
~ALSound();
bool Create();
bool Cache(Sound, const std::string &);
bool CacheMusic(const std::string &);
bool GetEnable();
void SetAudioVolume(int volume);
int GetAudioVolume();
void SetMusicVolume(int volume);
int GetMusicVolume();
void SetListener(const Math::Vector &eye, const Math::Vector &lookat);
void FrameMove(float rTime);
int Play(Sound sound, float amplitude=1.0f, float frequency=1.0f, bool bLoop = false);
int Play(Sound sound, const Math::Vector &pos, float amplitude=1.0f, float frequency=1.0f, bool bLoop = false);
bool FlushEnvelope(int channel);
bool AddEnvelope(int channel, float amplitude, float frequency, float time, SoundNext oper);
bool Position(int channel, const Math::Vector &pos);
bool Frequency(int channel, float frequency);
bool Stop(int channel);
bool StopAll();
bool MuteAll(bool bMute);
bool PlayMusic(int rank, bool bRepeat, float fadeTime=2.0f);
bool PlayMusic(const std::string &filename, bool bRepeat, float fadeTime=2.0f);
bool RestartMusic();
void SuspendMusic();
void StopMusic(float fadeTime=2.0f);
bool IsPlayingMusic();
bool PlayPauseMusic(const std::string &filename, bool repeat);
void StopPauseMusic();
bool CheckChannel(int &channel);
private:
void CleanUp();
int GetPriority(Sound);
bool SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded);
bool m_enabled;
float m_audioVolume;
float m_musicVolume;
unsigned int m_channels_limit;
ALCdevice* m_device;
ALCcontext* m_context;
std::map<Sound, Buffer*> m_sounds;
std::map<std::string, Buffer*> m_music;
std::map<int, Channel*> m_channels;
Channel *m_currentMusic;
std::list<OldMusic> m_oldMusic;
OldMusic m_previousMusic;
Math::Vector m_eye;
Math::Vector m_lookat;
};
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