81 lines
1.4 KiB
C++
81 lines
1.4 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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#include <cstring>
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#include "AudioCommon/AOSoundStream.h"
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#include "AudioCommon/Mixer.h"
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#if defined(HAVE_AO) && HAVE_AO
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void AOSound::SoundLoop()
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{
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Common::SetCurrentThreadName("Audio thread - ao");
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uint_32 numBytesToRender = 256;
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ao_initialize();
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default_driver = ao_default_driver_id();
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format.bits = 16;
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format.channels = 2;
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format.rate = m_mixer->GetSampleRate();
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format.byte_format = AO_FMT_LITTLE;
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device = ao_open_live(default_driver, &format, nullptr /* no options */);
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if (!device)
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{
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PanicAlertT("AudioCommon: Error opening AO device.\n");
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ao_shutdown();
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Stop();
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return;
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}
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buf_size = format.bits/8 * format.channels * format.rate;
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while (m_run_thread.load())
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{
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m_mixer->Mix(realtimeBuffer, numBytesToRender >> 2);
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{
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std::lock_guard<std::mutex> lk(soundCriticalSection);
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ao_play(device, (char*)realtimeBuffer, numBytesToRender);
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}
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soundSyncEvent.Wait();
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}
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}
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bool AOSound::Start()
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{
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m_run_thread.store(true);
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memset(realtimeBuffer, 0, sizeof(realtimeBuffer));
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thread = std::thread(&AOSound::SoundLoop, this);
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return true;
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}
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void AOSound::Update()
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{
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soundSyncEvent.Set();
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}
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void AOSound::Stop()
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{
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m_run_thread.store(false);
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soundSyncEvent.Set();
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{
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std::lock_guard<std::mutex> lk(soundCriticalSection);
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thread.join();
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if (device)
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ao_close(device);
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ao_shutdown();
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device = nullptr;
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}
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}
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#endif
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