108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
#include "synth.h"
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#include "code.h"
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#include <iostream>
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#include <map>
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#include <magic_enum.hpp>
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#include "midi.h"
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#include <thread>
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#include <chrono>
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int main(int argc, char** argv) {
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Synth synth;
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for(int i = 1; i < argc; ++i) {
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synth.loadSoundfont(argv[i]);
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}
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for (const Synth::Program& program : synth.getPrograms()) {
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std::cout << program.name << " " << program.soundfontId
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<< ":(" << program.bankNumber << ", " << program.programNumber << ")"
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<< std::endl;
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if (program.name == "Tuba") {
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std::cout << "Loading program!" << std::endl;
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synth.loadProgram(program);
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}
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}
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std::map<SELCAL::Key, double> keyFrequencies = {
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{SELCAL::Key::KEY_1, 680.0},
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{SELCAL::Key::KEY_2, 754.2},
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{SELCAL::Key::KEY_3, 836.6},
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{SELCAL::Key::KEY_4, 927.9},
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{SELCAL::Key::KEY_5, 1029.2},
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{SELCAL::Key::KEY_6, 1141.6},
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{SELCAL::Key::KEY_7, 1266.2},
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{SELCAL::Key::KEY_8, 1404.4},
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{SELCAL::Key::KEY_9, 1557.8},
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{SELCAL::Key::KEY_A, 312.6},
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{SELCAL::Key::KEY_B, 346.7},
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{SELCAL::Key::KEY_C, 384.6},
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{SELCAL::Key::KEY_D, 426.6},
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{SELCAL::Key::KEY_E, 473.2},
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{SELCAL::Key::KEY_F, 524.8},
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{SELCAL::Key::KEY_G, 582.1},
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{SELCAL::Key::KEY_H, 645.7},
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{SELCAL::Key::KEY_J, 716.1},
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{SELCAL::Key::KEY_K, 794.3},
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{SELCAL::Key::KEY_L, 881.0},
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{SELCAL::Key::KEY_M, 977.2},
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{SELCAL::Key::KEY_P, 1083.9},
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{SELCAL::Key::KEY_Q, 1202.3},
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{SELCAL::Key::KEY_R, 1333.5},
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{SELCAL::Key::KEY_S, 1479.1},
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{SELCAL::Key::KEY_T, 329.2},
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{SELCAL::Key::KEY_U, 365.2},
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{SELCAL::Key::KEY_V, 405.0},
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{SELCAL::Key::KEY_W, 449.3},
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{SELCAL::Key::KEY_X, 498.3},
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{SELCAL::Key::KEY_Y, 552.7},
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{SELCAL::Key::KEY_Z, 613.1},
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};
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std::array<double, NUM_MIDI_NOTES> tunings;
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tunings.fill(0);
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for (auto pair : keyFrequencies) {
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std::cout
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<< magic_enum::enum_name(pair.first) << " = "
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<< pair.second << " Hz "
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<< " or MIDI key " << frequencyToMidi(pair.second)
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<< std::endl;
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// fluidsynth wants tunings in MIDI cents, which effectively means MIDI key * 100.
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// As we only care about the SELCAL 32 tones, only tune those specific keys. We don't
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// need to tune the full 128-key keyboard.
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constexpr double MIDI_CENT_SCALE = 100.0;
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const int keyIndex = static_cast<int>(pair.first);
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tunings[keyIndex] = frequencyToMidi(pair.second * MIDI_CENT_SCALE);
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}
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bool success = synth.setTuning(tunings);
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std::cout << "Set tuning: " << (success ? "success" : "failed") << std::endl;
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fluid_synth_t* raw_synth = synth.getSynth();
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using namespace std::chrono_literals;
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int i, key;
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for(i = 0; i < 12; i++)
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{
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/* Generate a random key */
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key = 30 + (int)(12.0f * rand() / (float) RAND_MAX);
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/* Play a note */
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fluid_synth_noteon(raw_synth, 0, key, 100);
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/* Sleep for 1 second */
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std::this_thread::sleep_for(1s);
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/* Stop the note */
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fluid_synth_noteoff(raw_synth, 0, key);
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}
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}
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