46 lines
1.0 KiB
C++
46 lines
1.0 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 "AudioCommon/NullSoundStream.h"
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#include "Common/CommonTypes.h"
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#include "Core/HW/AudioInterface.h"
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#include "Core/HW/SystemTimers.h"
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void NullSound::SoundLoop()
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{
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}
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bool NullSound::Start()
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{
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return true;
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}
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void NullSound::SetVolume(int volume)
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{
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}
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void NullSound::Update()
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{
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// num_samples_to_render in this update - depends on SystemTimers::AUDIO_DMA_PERIOD.
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constexpr u32 stereo_16_bit_size = 4;
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constexpr u32 dma_length = 32;
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const u64 audio_dma_period =
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SystemTimers::GetTicksPerSecond() /
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(AudioInterface::GetAIDSampleRate() * stereo_16_bit_size / dma_length);
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const u64 ais_samples_per_second = 48000 * stereo_16_bit_size;
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const u64 num_samples_to_render =
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(audio_dma_period * ais_samples_per_second) / SystemTimers::GetTicksPerSecond();
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m_mixer->Mix(m_realtime_buffer.data(), (unsigned int)num_samples_to_render);
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}
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void NullSound::Clear(bool mute)
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{
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m_muted = mute;
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}
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void NullSound::Stop()
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{
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}
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