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100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <thread>
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#include "AudioCommon/SoundStream.h"
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#include "Common/Event.h"
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#include "Core/Core.h"
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#include "Core/HW/AudioInterface.h"
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#include "Core/HW/SystemTimers.h"
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#if defined HAVE_OPENAL && HAVE_OPENAL
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#ifdef _WIN32
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#include <OpenAL/include/al.h>
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#include <OpenAL/include/alc.h>
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#include <OpenAL/include/alext.h>
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#elif defined __APPLE__
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#include <OpenAL/al.h>
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#include <OpenAL/alc.h>
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#else
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#include <AL/al.h>
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#include <AL/alc.h>
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#include <AL/alext.h>
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#endif
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#ifdef __APPLE__
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// Avoid conflict with objc.h (on Windows, ST uses the system BOOL type, so this doesn't work)
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#define BOOL SoundTouch_BOOL
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#endif
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#include <soundtouch/STTypes.h>
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#include <soundtouch/SoundTouch.h>
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#ifdef __APPLE__
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#undef BOOL
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#endif
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#define SFX_MAX_SOURCE 1
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#define OAL_MAX_BUFFERS 32
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#define OAL_MAX_SAMPLES 256
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#define STEREO_CHANNELS 2
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#define SURROUND_CHANNELS 6 // number of channels in surround mode
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#define SIZE_SHORT 2
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#define SIZE_INT32 4
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#define SIZE_FLOAT 4 // size of a float in bytes
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#define FRAME_STEREO_SHORT STEREO_CHANNELS* SIZE_SHORT
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#define FRAME_STEREO_FLOAT STEREO_CHANNELS* SIZE_FLOAT
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#define FRAME_STEREO_INT32 STEREO_CHANNELS* SIZE_INT32
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#define FRAME_SURROUND_FLOAT SURROUND_CHANNELS* SIZE_FLOAT
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#define FRAME_SURROUND_SHORT SURROUND_CHANNELS* SIZE_SHORT
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#define FRAME_SURROUND_INT32 SURROUND_CHANNELS* SIZE_INT32
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#endif
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#if defined(__APPLE__)
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// OS X does not have the alext AL_FORMAT_STEREO_FLOAT32, AL_FORMAT_STEREO32,
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// AL_FORMAT_51CHN32 and AL_FORMAT_51CHN16 yet.
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#define AL_FORMAT_STEREO_FLOAT32 0
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#define AL_FORMAT_STEREO32 0
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#define AL_FORMAT_51CHN32 0
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#define AL_FORMAT_51CHN16 0
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#elif defined(_WIN32)
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// Only X-Fi on Windows supports the alext AL_FORMAT_STEREO32 alext for now,
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// but it is not documented or in "OpenAL/include/al.h".
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#define AL_FORMAT_STEREO32 0x1203
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#else
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#define AL_FORMAT_STEREO32 0
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#endif
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class OpenALStream final : public SoundStream
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{
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#if defined HAVE_OPENAL && HAVE_OPENAL
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public:
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OpenALStream() : uiSource(0) {}
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bool Start() override;
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void SoundLoop() override;
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void SetVolume(int volume) override;
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void Stop() override;
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void Clear(bool mute) override;
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void Update() override;
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static bool isValid() { return true; }
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private:
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std::thread thread;
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Common::Flag m_run_thread;
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Common::Event soundSyncEvent;
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short realtimeBuffer[OAL_MAX_SAMPLES * STEREO_CHANNELS];
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soundtouch::SAMPLETYPE sampleBuffer[OAL_MAX_SAMPLES * SURROUND_CHANNELS * OAL_MAX_BUFFERS];
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ALuint uiBuffers[OAL_MAX_BUFFERS];
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ALuint uiSource;
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ALfloat fVolume;
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u8 numBuffers;
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#endif // HAVE_OPENAL
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};
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