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https://github.com/RGBCube/serenity
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0dc6fe9102
This is the first step in transitioning Piano to a full LibDSP backend. For now, the delay effect is replaced with a (mostly identical) implementation in LibDSP. The new ProcessorParameterSlider attaches to a LibDSP::Processor's range parameter (LibDSP::ProcessorRangeParameter) and changes it automatically. It also has the ability to update an external GUI::Label. This is used for the three delay parameters and it will become useful for auto-generating UI for Processors.
88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2019-2020, William McPherson <willmcpherson2@gmail.com>
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* Copyright (c) 2021, kleines Filmröllchen <malu.bertsch@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "Music.h"
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#include <AK/Noncopyable.h>
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#include <AK/SinglyLinkedList.h>
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#include <LibAudio/Buffer.h>
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#include <LibDSP/Effects.h>
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using RollIter = AK::SinglyLinkedListIterator<SinglyLinkedList<RollNote>, RollNote>;
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class Track {
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AK_MAKE_NONCOPYABLE(Track);
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AK_MAKE_NONMOVABLE(Track);
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public:
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explicit Track(const u32& time);
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~Track();
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const Vector<Audio::Frame>& recorded_sample() const { return m_recorded_sample; }
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const SinglyLinkedList<RollNote>& roll_notes(int note) const { return m_roll_notes[note]; }
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int wave() const { return m_wave; }
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int volume() const { return m_volume; }
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int attack() const { return m_attack; }
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int decay() const { return m_decay; }
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int sustain() const { return m_sustain; }
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int release() const { return m_release; }
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NonnullRefPtr<LibDSP::Effects::Delay> delay() { return m_delay; }
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void fill_sample(Sample& sample);
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void reset();
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String set_recorded_sample(const StringView& path);
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void set_note(int note, Switch);
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void set_roll_note(int note, u32 on_sample, u32 off_sample);
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void set_wave(int wave);
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void set_wave(Direction);
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void set_volume(int volume);
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void set_attack(int attack);
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void set_decay(int decay);
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void set_sustain(int sustain);
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void set_release(int release);
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private:
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Audio::Frame sine(size_t note);
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Audio::Frame saw(size_t note);
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Audio::Frame square(size_t note);
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Audio::Frame triangle(size_t note);
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Audio::Frame noise(size_t note);
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Audio::Frame recorded_sample(size_t note);
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void sync_roll(int note);
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void set_sustain_impl(int sustain);
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Vector<Audio::Frame> m_recorded_sample;
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u8 m_note_on[note_count] { 0 };
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double m_power[note_count] { 0 };
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double m_pos[note_count]; // Initialized lazily.
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// Synths may use this to keep track of the last wave position
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double m_last_w[note_count] { 0 };
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Envelope m_envelope[note_count] { Done };
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int m_wave { first_wave };
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int m_volume;
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int m_attack;
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double m_attack_step;
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int m_decay;
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double m_decay_step;
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int m_sustain;
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double m_sustain_level;
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int m_release;
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double m_release_step[note_count];
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const u32& m_time;
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NonnullRefPtr<LibDSP::Transport> m_temporary_transport;
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NonnullRefPtr<LibDSP::Effects::Delay> m_delay;
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SinglyLinkedList<RollNote> m_roll_notes[note_count];
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RollIter m_roll_iterators[note_count];
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};
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