dolphin/Source/Core/AudioCommon/Src/OpenALStream.h

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// Copyright (C) 2003 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef _OPENALSTREAM_H_
#define _OPENALSTREAM_H_
#include "Common.h"
#include "SoundStream.h"
#include "Thread.h"
#if defined HAVE_OPENAL && HAVE_OPENAL
#ifdef _WIN32
#include "../../../../Externals/OpenAL/include/al.h"
#include "../../../../Externals/OpenAL/include/alc.h"
#else
#include <AL/al.h>
#include <AL/alc.h>
#endif
// 16 bit Stereo
#define SFX_MAX_SOURCE 1
#define OAL_NUM_BUFFERS 16
#define OAL_MAX_SAMPLES 512 // AyuanX: Don't make it too large, as larger buffer means longer delay
#define OAL_THRESHOLD 128 // Some games are quite sensitive to delay
#endif
class OpenALStream: public SoundStream
{
#if defined HAVE_OPENAL && HAVE_OPENAL
public:
OpenALStream(CMixer *mixer, void *hWnd = NULL)
: SoundStream(mixer)
, uiSource(0)
{};
virtual ~OpenALStream() {};
virtual bool Start();
virtual void SoundLoop();
virtual void SetVolume(int volume);
virtual void Stop();
virtual void Clear(bool mute);
static bool isValid() { return true; }
virtual bool usesMixer() const { return true; }
virtual void Update();
private:
std::thread thread;
Common::EventEx soundSyncEvent;
short realtimeBuffer[OAL_MAX_SAMPLES * 2];
ALuint uiBuffers[OAL_NUM_BUFFERS];
ALuint uiSource;
ALfloat fVolume;
#else
public:
OpenALStream(CMixer *mixer, void *hWnd = NULL): SoundStream(mixer) {}
#endif // HAVE_OPENAL
};
#endif // OPENALSTREAM