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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
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//
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// OPL2.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 02/04/2020.
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// Copyright © 2020 Thomas Harte. All rights reserved.
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//
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#ifndef OPL2_hpp
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#define OPL2_hpp
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#include "../../Outputs/Speaker/Implementation/SampleSource.hpp"
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#include "../../Concurrency/AsyncTaskQueue.hpp"
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namespace Yamaha {
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/*!
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Provides an emulation of the OPL2 core, along with its OPLL and VRC7 specialisations.
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*/
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class OPL2: public ::Outputs::Speaker::SampleSource {
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public:
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enum class Personality {
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OPL2, // Provides full configuration of all channels.
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OPLL, // Uses the OPLL sound font, permitting full configuration of only a single channel.
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VRC7, // Uses the VRC7 sound font, permitting full configuration of only a single channel.
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};
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// Creates a new OPL2, OPLL or VRC7.
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OPL2(Personality personality, Concurrency::DeferringAsyncTaskQueue &task_queue);
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/// As per ::SampleSource; provides a broadphase test for silence.
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bool is_zero_level();
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/// As per ::SampleSource; provides audio output.
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void get_samples(std::size_t number_of_samples, std::int16_t *target);
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void set_sample_volume_range(std::int16_t range);
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/// Writes to the OPL.
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void write(uint16_t address, uint8_t value);
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/// Reads from the OPL.
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uint8_t read(uint16_t address);
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private:
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Concurrency::DeferringAsyncTaskQueue &task_queue_;
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};
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}
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#endif /* OPL2_hpp */
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