Nulo/qmk_firmware
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working duopholy

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This commit is contained in:
Jack Humbert 2017-06-26 23:13:27 -04:00
parent eabf530a0e
commit bfc73e90cf
1 changed files with 58 additions and 4 deletions
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62
quantum/audio/audio.c
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@ -75,6 +75,7 @@
int voices = 0;
int voice_place = 0;
float frequency = 0;
float frequency_alt = 0;
int volume = 0;
long position = 0;
@ -193,6 +194,7 @@ void stop_all_notes()
playing_notes = false;
playing_note = false;
frequency = 0;
frequency_alt = 0;
volume = 0;
for (uint8_t i = 0; i < 8; i++)
@ -239,6 +241,7 @@ void stop_note(float freq)
DISABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
frequency = 0;
frequency_alt = 0;
volume = 0;
playing_note = false;
}
@ -268,10 +271,52 @@ float vibrato(float average_freq) {
#ifdef C6_AUDIO
ISR(TIMER3_COMPA_vect)
{
float freq;
float freq, freq_alt = 0;
if (playing_note) {
if (voices > 0) {
#ifdef B5_AUDIO
if (voices > 1) {
if (polyphony_rate == 0) {
if (glissando) {
if (frequency_alt != 0 && frequency_alt < frequencies[voices - 2] && frequency_alt < frequencies[voices - 2] * pow(2, -440/frequencies[voices - 2]/12/2)) {
frequency_alt = frequency_alt * pow(2, 440/frequency_alt/12/2);
} else if (frequency_alt != 0 && frequency_alt > frequencies[voices - 2] && frequency_alt > frequencies[voices - 2] * pow(2, 440/frequencies[voices - 2]/12/2)) {
frequency_alt = frequency_alt * pow(2, -440/frequency_alt/12/2);
} else {
frequency_alt = frequencies[voices - 2];
}
} else {
frequency_alt = frequencies[voices - 2];
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq_alt = vibrato(frequency_alt);
} else {
freq_alt = frequency_alt;
}
#else
freq_alt = frequency_alt;
#endif
}
if (envelope_index < 65535) {
envelope_index++;
}
freq_alt = voice_envelope(freq_alt);
if (freq_alt < 30.517578125) {
freq_alt = 30.52;
}
TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq_alt * CPU_PRESCALER));
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq_alt * CPU_PRESCALER)) * note_timbre);
}
#endif
if (polyphony_rate > 0) {
if (voices > 1) {
voice_place %= voices;
@ -396,10 +441,10 @@ ISR(TIMER3_COMPA_vect)
}
#endif
#ifdef B5_AUDIO
ISR(TIMER1_COMPA_vect)
{
float freq;
#if defined(B5_AUDIO) && !defined(C6_AUDIO)
float freq = 0;
if (playing_note) {
if (voices > 0) {
@ -524,8 +569,8 @@ ISR(TIMER1_COMPA_vect)
playing_notes = false;
playing_note = false;
}
}
#endif
}
void play_note(float freq, int vol) {
@ -562,8 +607,15 @@ void play_note(float freq, int vol) {
ENABLE_AUDIO_COUNTER_3_OUTPUT;
#endif
#ifdef B5_AUDIO
#ifdef C6_AUDIO
if (voices > 1) {
ENABLE_AUDIO_COUNTER_1_ISR;
ENABLE_AUDIO_COUNTER_1_OUTPUT;
}
#else
ENABLE_AUDIO_COUNTER_1_ISR;
ENABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
#endif
}
@ -609,9 +661,11 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
ENABLE_AUDIO_COUNTER_3_OUTPUT;
#endif
#ifdef B5_AUDIO
#ifndef C6_AUDIO
ENABLE_AUDIO_COUNTER_1_ISR;
ENABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
#endif
}
}