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/*
* This file is part of the Colobot: Gold Edition source code
* Copyright (C) 2001-2014, Daniel Roux, EPSITEC SA & TerranovaTeam
* http://epsiteс.ch; http://colobot.info; http://github.com/colobot
*
* 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://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() override;
bool Cache(Sound, const std::string &) override;
bool CacheMusic(const std::string &) override;
bool IsCached(Sound) override;
bool IsCachedMusic(const std::string &) override;
bool GetEnable() override;
void SetAudioVolume(int volume) override;
int GetAudioVolume() override;
void SetMusicVolume(int volume) override;
int GetMusicVolume() override;
void SetListener(const Math::Vector &eye, const Math::Vector &lookat) override;
void FrameMove(float rTime) override;
int Play(Sound sound, float amplitude=1.0f, float frequency=1.0f, bool bLoop = false) override;
int Play(Sound sound, const Math::Vector &pos, float amplitude=1.0f, float frequency=1.0f, bool bLoop = false) override;
bool FlushEnvelope(int channel) override;
bool AddEnvelope(int channel, float amplitude, float frequency, float time, SoundNext oper) override;
bool Position(int channel, const Math::Vector &pos) override;
bool Frequency(int channel, float frequency) override;
bool Stop(int channel) override;
bool StopAll() override;
bool MuteAll(bool bMute) override;
bool PlayMusic(int rank, bool bRepeat, float fadeTime=2.0f) override;
bool PlayMusic(const std::string &filename, bool bRepeat, float fadeTime=2.0f) override;
bool RestartMusic() override;
void SuspendMusic() override;
void StopMusic(float fadeTime=2.0f) override;
bool IsPlayingMusic() override;
bool PlayPauseMusic(const std::string &filename, bool repeat) override;
void StopPauseMusic() override;
private:
void CleanUp();
int GetPriority(Sound);
bool SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded);
bool CheckChannel(int &channel);
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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