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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#ifndef _OPENALSTREAM_H_
#define _OPENALSTREAM_H_
#include "Common.h"
#include "SoundStream.h"
#include "Thread.h"
#if defined HAVE_OPENAL && HAVE_OPENAL
#ifdef _WIN32
#include <OpenAL/include/al.h>
#include <OpenAL/include/alc.h>
#include <OpenAL/include/alext.h>
#elif defined __APPLE__
#include <OpenAL/al.h>
#include <OpenAL/alc.h>
#else
#include <AL/al.h>
#include <AL/alc.h>
#include <AL/alext.h>
#endif
#include "Core.h"
#include "HW/SystemTimers.h"
#include "HW/AudioInterface.h"
#include <soundtouch/SoundTouch.h>
#include <soundtouch/STTypes.h>
// 16 bit Stereo
#define SFX_MAX_SOURCE 1
#define OAL_MAX_BUFFERS 32
#define OAL_MAX_SAMPLES 256
#define STEREO_CHANNELS 2
#define SURROUND_CHANNELS 6 // number of channels in surround mode
#define SIZE_SHORT 2
#define SIZE_FLOAT 4 // size of a float in bytes
#define FRAME_STEREO_SHORT STEREO_CHANNELS * SIZE_SHORT
#define FRAME_STEREO_FLOAT STEREO_CHANNELS * SIZE_FLOAT
#define FRAME_SURROUND_FLOAT SURROUND_CHANNELS * SIZE_FLOAT
#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::Event soundSyncEvent;
short realtimeBuffer[OAL_MAX_SAMPLES * STEREO_CHANNELS];
soundtouch::SAMPLETYPE sampleBuffer[OAL_MAX_SAMPLES * SURROUND_CHANNELS * OAL_MAX_BUFFERS];
ALuint uiBuffers[OAL_MAX_BUFFERS];
ALuint uiSource;
ALfloat fVolume;
u8 numBuffers;
#else
public:
OpenALStream(CMixer *mixer, void *hWnd = NULL): SoundStream(mixer) {}
#endif // HAVE_OPENAL
};
#endif // OPENALSTREAM
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