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CLK/Machines/Electron/SoundGenerator.hpp
Thomas Harte 48737a32a7 Introduces formal setting of the output volume to SampleSource.
Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
2018-03-09 13:23:18 -05:00

43 lines
1.0 KiB
C++

//
// SoundGenerator.hpp
// Clock Signal
//
// Created by Thomas Harte on 03/12/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#ifndef Electron_SoundGenerator_hpp
#define Electron_SoundGenerator_hpp
#include "../../Outputs/Speaker/Implementation/SampleSource.hpp"
#include "../../Concurrency/AsyncTaskQueue.hpp"
namespace Electron {
class SoundGenerator: public ::Outputs::Speaker::SampleSource {
public:
SoundGenerator(Concurrency::DeferringAsyncTaskQueue &audio_queue);
void set_divider(uint8_t divider);
void set_is_enabled(bool is_enabled);
static const unsigned int clock_rate_divider = 8;
// To satisfy ::SampleSource.
void get_samples(std::size_t number_of_samples, int16_t *target);
void skip_samples(std::size_t number_of_samples);
void set_sample_volume_range(std::int16_t range);
private:
Concurrency::DeferringAsyncTaskQueue &audio_queue_;
unsigned int counter_ = 0;
unsigned int divider_ = 0;
bool is_enabled_ = false;
unsigned int volume_ = 0;
};
}
#endif /* Speaker_hpp */