summaryrefslogtreecommitdiff
path: root/quantum
diff options
context:
space:
mode:
authorJack Humbert <jack.humb@gmail.com>2017-06-26 23:13:27 -0400
committerJack Humbert <jack.humb@gmail.com>2017-06-27 14:20:44 -0400
commitbfc73e90cfc6532331d1532e2ff9020d25c96a69 (patch)
tree91d1a8fb076c6b08c18d92c4bf3ff602de6fae26 /quantum
parenteabf530a0eaffb5fb7d6ebe375225e2d8b0b559a (diff)
working duopholy
Diffstat (limited to 'quantum')
-rw-r--r--quantum/audio/audio.c62
1 files changed, 58 insertions, 4 deletions
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c
index f2948f18aa..04f3460033 100644
--- a/quantum/audio/audio.c
+++ b/quantum/audio/audio.c
@@ -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
}
@@ -609,8 +661,10 @@ 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
}