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Fix can_listen_cmd()

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Aadi Desai 2023-06-08 16:14:03 +01:00
parent 795a9d2916
commit d970fded6a
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1 changed files with 48 additions and 14 deletions
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62
demo/main.cpp
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@ -302,36 +302,70 @@ static void can_watch_cmd() {
const char *notes[85] = {"None", "C1", "C1#", "D1", "D1#", "E1", "F1", "F1#", "G1", "G1#", "A1", "A1#", "B1", "C2", "C2#", "D2", "D2#", "E2", "F2", "F2#", "G2", "G2#", "A2", "A2#", "B2", "C3", "C3#", "D3", "D3#", "E3", "F3", "F3#", "G3", "G3#", "A3", "A3#", "B3", "C4", "C4#", "D4", "D4#", "E4", "F4", "F4#", "G4", "G4#", "A4", "A4#", "B4", "C5", "C5#", "D5", "D5#", "E5", "F5", "F5#", "G5", "G5#", "A5", "A5#", "B5", "C6", "C6#", "D6", "D6#", "E6", "F6", "F6#", "G6", "G6#", "A6", "A6#", "B6", "C7", "C7#", "D7", "D7#", "E7", "F7", "F7#", "G7", "G7#", "A7", "A7#", "B7"};
const uint32_t freqs[85] = {0, 33, 35, 37, 39, 41, 44, 46, 49, 52, 55, 58, 62, 65, 69, 73, 78, 82, 87, 93, 98, 104, 110, 117, 123, 131, 139, 147, 156, 165, 175, 185, 196, 208, 220, 233, 247, 262, 277, 294, 311, 330, 349, 370, 392, 415, 440, 466, 494, 523, 554, 587, 622, 659, 698, 740, 784, 831, 880, 932, 988, 1047, 1109, 1175, 1245, 1319, 1397, 1480, 1568, 1661, 1760, 1865, 1976, 2093, 2217, 2349, 2489, 2637, 2794, 2960, 3136, 3322, 3520, 3729, 3951};
static void can_listen_cmd() {
set_wave(0, WAVE_SINE);
int old_note = 0;
for (int i = 0; i < 64; i++) {
set_wave(i, WAVE_SINE);
}
bool active_notes[85] = {0};
uint32_t active_osc[64] = {0};
uint32_t active_oscs = 0;
while (true) {
can_frame frame = can_read();
switch (frame.data[0]) {
case 'P': {
int note = (frame.data[1] - 1) * 12 + frame.data[2];
if (note != old_note) {
set_freq(0, freqs[note]);
printf("Playing note %s\n", notes[note]);
old_note = note;
}
uint32_t note = (frame.data[1] - 1) * 12 + frame.data[2];
if (active_notes[note] || active_oscs == 64) // ALready active or all oscillators in use, ignore
break;
active_notes[note] = true; // Mark note as active
active_osc[active_oscs] = note; // Set oscillator to note
set_freq(active_oscs, freqs[note]); // Set oscillator frequency
printf("Playing note %s (%d) on oscillator %d\n", notes[note], note, active_oscs);
active_oscs++;
break;
}
case 'R': {
// TODO: Add polyphony
if (old_note != 0) {
printf("Stopping notes\n");
old_note = 0;
set_freq(0, 0);
uint32_t note = (frame.data[1] - 1) * 12 + frame.data[2];
if (active_notes[note] == false) { // Not active, ignore
break;
} else if (true) {
printf("Finding note %s (%d)\n", notes[note], note); // Debug
active_notes[note] = false; // Mark note as inactive
active_oscs--; // Decrement active oscillators
if (note == active_osc[active_oscs]) { // Note is last active
active_osc[active_oscs] = 0; // Clear oscillator
set_freq(active_oscs, 0); // Set frequency to 0
printf("Stopping last note %s (%d)\n", notes[note], note); // Debug
break;
} // Note is not last active
printf("Note %s (%d) is not last active\n", notes[note], note); // Debug
for (uint32_t i = 0; i <= active_oscs; i++) { // Find note
printf("Checking oscillator %d\n", i); // Debug
if (note != active_osc[i]) { // Not this oscillator
printf("Not in oscillator %d\n", i); // Debug
continue;
} // Found note
uint32_t swapped_note = active_osc[active_oscs]; // Get last active note
set_freq(i, freqs[swapped_note]); // Set frequency of oscillator to last active note
active_osc[i] = swapped_note; // Set oscillator to last active note
set_freq(active_oscs, 0); // Set last oscillator to 0
active_osc[active_oscs] = 0; // Clear last active note
printf("Stopping note %s (%d)\n", notes[note], note); // Debug
goto done; // Done
}
printf("Note up for note %s not found\n", notes[note]); // Error
break;
}
break;
}
default: {
// printf("Unknown command, data[0]: 0x%2X", frame.data[0]);
break;
}
}
done:
if (readchar_nonblock()) {
getchar();
for (int i = 0; i < 64; i++) {
audio(i, WAVE_SAWTOOTH, 0);
}
return;
}
}