3 #include <Fx/Types.hpp>
5 #include <ossia/detail/flicks.hpp>
6 #include <ossia/detail/math.hpp>
8 #include <halp/controls.hpp>
9 #include <halp/layout.hpp>
10 #include <halp/meta.hpp>
11 #include <halp/midi.hpp>
12 #include <rnd/random.hpp>
13 #include <tuplet/tuple.hpp>
16 namespace Nodes::LFO::v2
20 halp_meta(name,
"LFO")
21 halp_meta(c_name,
"LFO")
22 halp_meta(category,
"Control/Generators")
23 halp_meta(author,
"ossia score")
24 halp_meta(manual_url,
"https://ossia.io/score-docs/processes/lfo.html#lfo")
25 halp_meta(description,
"Low-frequency oscillator")
26 halp_meta(recommended_height, 130.)
27 halp_meta(uuid,
"1e17e479-3513-44c8-a8a7-017be9f6ac8a");
31 halp::log_hslider_f32<
"Freq.", halp::range{0.01f, 100.f, 1.f}> freq;
32 halp::knob_f32<
"Ampl.", halp::range{0., 2., 0.5}> ampl;
33 halp::knob_f32<
"Offset", halp::range{-1., 1., 0.5}> offset;
34 halp::knob_f32<
"Jitter", halp::range{0., 1., 0}> jitter;
35 halp::knob_f32<
"Phase", halp::range{-1., 1., 0.}> phase;
36 struct : halp::enum_t<Control::Widgets::Waveform,
"Waveform">
38 static constexpr
auto pixmaps()
40 return std::array<const char*, 16>{
41 ":/icons/wave_sin_off.png",
42 ":/icons/wave_sin_on.png",
43 ":/icons/wave_triangle_off.png",
44 ":/icons/wave_triangle_on.png",
45 ":/icons/wave_saw_off.png",
46 ":/icons/wave_saw_on.png",
47 ":/icons/wave_square_off.png",
48 ":/icons/wave_square_on.png",
49 ":/icons/wave_sample_and_hold_off.png",
50 ":/icons/wave_sample_and_hold_on.png",
51 ":/icons/wave_noise1_off.png",
52 ":/icons/wave_noise1_on.png",
53 ":/icons/wave_noise2_off.png",
54 ":/icons/wave_noise2_on.png",
55 ":/icons/wave_noise3_off.png",
56 ":/icons/wave_noise3_on.png"};
65 struct : halp::val_port<
"Out", std::optional<float>>
76 rnd::pcg rd{random_source()};
78 using tick = halp::tick_flicks;
79 void operator()(
const halp::tick_flicks& tk)
81 constexpr
const double sine_ratio = ossia::two_pi / ossia::flicks_per_second<double>;
82 const auto elapsed = tk.model_read_duration();
84 const auto quantif = inputs.quant.value;
85 auto freq = inputs.freq.value;
86 auto ampl = inputs.ampl.value;
87 auto offset = inputs.offset.value;
88 const auto jitter = inputs.jitter.value;
89 auto custom_phase = inputs.phase.value;
90 const auto type = inputs.waveform.value;
94 if(tk.unexpected_bar_change())
105 freq = 1. / (2. * quantif);
108 const auto ph_delta = elapsed * freq * sine_ratio;
111 auto ph = this->phase;
114 ph += std::normal_distribution<float>(0., 0.25)(this->rd) * jitter;
117 using namespace Control::Widgets;
120 = [&](
auto new_val) { outputs.out.value = ampl * new_val + offset; };
124 add_val(std::sin(custom_phase + ph));
127 add_val(std::asin(std::sin(custom_phase + ph)) / ossia::half_pi);
130 add_val(std::atan(std::tan(custom_phase + ph)) / ossia::half_pi);
133 add_val((std::sin(custom_phase + ph) > 0.f) ? 1.f : -1.f);
135 case SampleAndHold: {
136 const auto start_s = std::sin(custom_phase + ph);
137 const auto end_s = std::sin(custom_phase + ph + ph_delta);
138 if((start_s > 0 && end_s <= 0) || (start_s <= 0 && end_s > 0))
140 add_val(std::uniform_real_distribution<float>(-1.f, 1.f)(this->rd));
145 add_val(std::uniform_real_distribution<float>(-1.f, 1.f)(this->rd));
148 add_val(std::normal_distribution<float>(0.f, 1.f)(this->rd));
152 std::clamp(std::cauchy_distribution<float>(0.f, 1.f)(this->rd), 0.f, 1.f));
157 this->phase += ph_delta;
162 halp_meta(layout, halp::layouts::hbox)
165 halp_meta(layout, halp::layouts::vbox)
166 halp_meta(background, halp::colors::mid)
169 halp_meta(layout, halp::layouts::hbox)
171 halp::control<&ins::freq> f;
172 halp::control<&ins::quant> q;
174 halp::control<&ins::waveform> w;
179 halp_meta(layout, halp::layouts::vbox)
180 halp_meta(background, halp::colors::mid)
181 halp::control<&ins::ampl> a;
182 halp::control<&ins::offset> o;
186 halp_meta(layout, halp::layouts::vbox)
187 halp_meta(background, halp::colors::mid)
188 halp::control<&ins::jitter> j;
189 halp::control<&ins::phase> p;
Definition: LFO_v2.hpp:30
Definition: LFO_v2.hpp:161
Definition: LFO_v2.hpp:19
Definition: LFO_v2.hpp:68