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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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/>.
*
*/
/*
* Copyright (C) 2006-2010 - Frictional Games
*
* This file is part of HPL1 Engine.
*/
#ifndef HPL_LOWLEVELSOUND_OPENAL_H
#define HPL_LOWLEVELSOUND_OPENAL_H
#include "common/array.h"
#include "hpl1/engine/sound/LowLevelSound.h"
namespace Audio {
class Mixer;
}
namespace hpl {
class cOpenALSoundChannel;
class cLowLevelSoundOpenAL : public iLowLevelSound {
public:
cLowLevelSoundOpenAL();
~cLowLevelSoundOpenAL();
void GetSupportedFormats(tStringList &alstFormats);
iSoundData *LoadSoundData(const tString &asName, const tString &asFilePath,
const tString &asType, bool abStream, bool abLoopStream);
void UpdateSound(float afTimeStep);
void SetListenerAttributes(const cVector3f &avPos, const cVector3f &avVel,
const cVector3f &avForward, const cVector3f &avUp);
void SetListenerPosition(const cVector3f &avPos);
void SetSetRolloffFactor(float afFactor);
void SetListenerAttenuation(bool abEnabled);
void Init(bool abUseHardware, bool abForceGeneric, bool abUseEnvAudio, int alMaxChannels,
int alStreamUpdateFreq, bool abUseThreading, bool abUseVoiceManagement,
int alMaxMonoSourceHint, int alMaxStereoSourceHint,
int alStreamingBufferSize, int alStreamingBufferCount, bool abEnableLowLevelLog,
tString asDeviceName);
void SetVolume(float afVolume);
void SetEnvVolume(float afEnvVolume);
iSoundEnvironment *LoadSoundEnvironment(const tString &asFilePath);
void SetSoundEnvironment(iSoundEnvironment *apSoundEnv);
void FadeSoundEnvironment(iSoundEnvironment *apSourceSoundEnv, iSoundEnvironment *apDestSoundEnv, float afT);
bool playChannel(cOpenALSoundChannel *channel);
void closeChannel(cOpenALSoundChannel *channel);
private:
static const int MAX_ACTIVE_CHANNELS = 32;
Common::Array<cOpenALSoundChannel *> _activeChannels;
Audio::Mixer *_mixer;
tString mvFormats[30];
bool mbInitialized;
bool mbNullEffectAttached;
};
} // namespace hpl
#endif // HPL_LOWLEVELSOUND_OPENAL_H
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