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46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
//
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// AudioToggle.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 17/04/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include "../../Outputs/Speaker/Implementation/BufferSource.hpp"
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#include "../../Concurrency/AsyncTaskQueue.hpp"
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namespace Audio {
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/*!
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Provides a sample source that can programmatically be set to one of two values.
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*/
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class Toggle: public Outputs::Speaker::BufferSource<Toggle, false> {
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public:
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Toggle(Concurrency::AsyncTaskQueue<false> &audio_queue);
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template <Outputs::Speaker::Action action>
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void apply_samples(std::size_t number_of_samples, Outputs::Speaker::MonoSample *target) {
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Outputs::Speaker::fill<action>(target, target + number_of_samples, level_);
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}
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void set_sample_volume_range(std::int16_t range);
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bool is_zero_level() const {
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return !level_;
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}
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void set_output(bool enabled);
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bool get_output() const;
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private:
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// Accessed on the calling thread.
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bool is_enabled_ = false;
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Concurrency::AsyncTaskQueue<false> &audio_queue_;
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// Accessed on the audio thread.
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int16_t level_ = 0, volume_ = 0;
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bool level_active_ = false;
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};
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}
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