95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
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// nisps/modes/breakor.hpp — Break|| 8-track ratio sequencer mode binding.
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//
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// 4 abstract input channels → MLP[4, 10, 14, 18, 56] → BreakOrEngine.
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// process() returns silence; the engine queues NoteOn/NoteOff/Clock events
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// each tick. The mode forwards them through its ControlEvent ring buffer
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// for the platform glue (firmware MIDI/I2C, browser WebMIDI) to drain.
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#pragma once
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <span>
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#include <string_view>
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#include "../core/concepts.hpp"
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#include "../core/perf.hpp"
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#include "../core/types.hpp"
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#include "../engines/breakor.hpp"
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#include "../ml/mlp.hpp"
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#include "base.hpp"
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#include "generated/breakor_schema.hpp"
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namespace nisps::modes {
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class BreakOrMode : public ModeBase<
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BreakOrMode,
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BreakOrEngine,
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ml::MLP<4u, 10u, 14u, 18u, 56u>,
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4u> {
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public:
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using Base = ModeBase<BreakOrMode, BreakOrEngine,
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ml::MLP<4u, 10u, 14u, 18u, 56u>, 4u>;
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using Base::Base;
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static constexpr std::string_view mode_id() noexcept {
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return generated::kBreakorModeId;
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}
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static constexpr const ParamSchema& param_schema() noexcept { return kSchema; }
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NISPS_FORCE_INLINE void set_playing(bool playing) noexcept {
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engine_.set_playing(playing);
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}
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NISPS_FORCE_INLINE void update_bpm(float bpm) noexcept {
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engine_.update_bpm(bpm);
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}
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NISPS_FORCE_INLINE void set_track_note(std::size_t track, std::uint8_t note) noexcept {
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engine_.set_track_note(track, note);
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}
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// Drains queued engine events, repackages them as ControlEvent and pushes
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// them into the mode's event ring. Called by hardware glue from the
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// audio thread (or right after process()) to forward MIDI/I2C output.
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void pump_engine_events() noexcept {
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std::array<BreakOrEngine::Event, 32u> buf;
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const std::size_t n = engine_.pop_events(std::span<BreakOrEngine::Event>(buf));
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for (std::size_t i = 0u; i < n; ++i) {
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const auto& e = buf[i];
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ControlEvent ce{};
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switch (e.kind) {
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case BreakOrEngine::EventKind::NoteOn:
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ce.kind = ControlEvent::Kind::NoteOn; break;
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case BreakOrEngine::EventKind::NoteOff:
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ce.kind = ControlEvent::Kind::NoteOff; break;
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case BreakOrEngine::EventKind::Clock:
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ce.kind = ControlEvent::Kind::Clock; break;
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}
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ce.channel = e.track;
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ce.data1 = e.midi_note;
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ce.data2 = e.velocity;
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(void)push_control_event(ce);
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}
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}
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private:
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static inline constexpr ParamSchema kSchema = ParamSchema{
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generated::kBreakorModeId,
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generated::kBreakorEngineId,
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std::span<const std::string_view>(generated::kBreakorInputChannels),
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generated::kBreakorMLConfig.input_size,
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std::span<const std::size_t>(generated::kBreakorHiddenLayers),
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generated::kBreakorMLConfig.output_size,
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generated::kBreakorMLConfig.default_spread,
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generated::kBreakorMLConfig.default_learning_rate,
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generated::kBreakorMLConfig.default_max_iterations,
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std::span<const generated::Param>(generated::kBreakorParams),
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std::span<const std::string_view>(generated::kBreakorVoiceSpaces),
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generated::kBreakorUI,
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};
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};
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static_assert(Mode<BreakOrMode>, "BreakOrMode must satisfy nisps::Mode");
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} // namespace nisps::modes
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