drashna/qmk_firmware
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breaking changes - restructuring audio.c a little

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This commit is contained in:
Jack Humbert 2016-04-19 21:25:48 -04:00
parent a2ee277158
commit 462601f5e8
4 changed files with 115 additions and 97 deletions
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150
quantum/audio.c
View file

@ -74,7 +74,9 @@ float vibrato_counter = 0;
float vibrato_strength = .5;
float vibrato_rate = 0.125;
float polyphony_rate = .5;
float polyphony_rate = 0;
bool inited = false;
audio_config_t audio_config;
@ -170,66 +172,7 @@ void increase_tempo(uint8_t tempo_change) {
}
}
void stop_all_notes() {
voices = 0;
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
notes = false;
note = false;
frequency = 0;
volume = 0;
for (int i = 0; i < 8; i++) {
frequencies[i] = 0;
volumes[i] = 0;
}
}
void stop_note(double freq) {
if (note) {
cli();
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
for (int i = 7; i >= 0; i--) {
if (frequencies[i] == freq) {
frequencies[i] = 0;
volumes[i] = 0;
for (int j = i; (j < 7); j++) {
frequencies[j] = frequencies[j+1];
frequencies[j+1] = 0;
volumes[j] = volumes[j+1];
volumes[j+1] = 0;
}
break;
}
}
voices--;
if (voices < 0)
voices = 0;
if (voice_place >= voices) {
voice_place = 0;
}
if (voices == 0) {
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
frequency = 0;
volume = 0;
note = false;
}
sei();
}
}
void init_notes() {
void audio_init() {
/* check signature */
if (!eeconfig_is_enabled()) {
@ -264,6 +207,71 @@ void init_notes() {
TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
#endif
inited = true;
}
void stop_all_notes() {
if (!inited) {
audio_init();
}
voices = 0;
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
notes = false;
note = false;
frequency = 0;
volume = 0;
for (int i = 0; i < 8; i++) {
frequencies[i] = 0;
volumes[i] = 0;
}
}
void stop_note(double freq) {
if (note) {
if (!inited) {
audio_init();
}
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
for (int i = 7; i >= 0; i--) {
if (frequencies[i] == freq) {
frequencies[i] = 0;
volumes[i] = 0;
for (int j = i; (j < 7); j++) {
frequencies[j] = frequencies[j+1];
frequencies[j+1] = 0;
volumes[j] = volumes[j+1];
volumes[j+1] = 0;
}
break;
}
}
voices--;
if (voices < 0)
voices = 0;
if (voice_place >= voices) {
voice_place = 0;
}
if (voices == 0) {
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
frequency = 0;
volume = 0;
note = false;
}
}
}
float mod(float a, int b)
@ -456,7 +464,10 @@ ISR(TIMER3_COMPA_vect) {
void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest) {
if (audio_config.enable) {
cli();
TIMSK3 &= ~_BV(OCIE3A);
if (!inited) {
audio_init();
}
// Cancel note if a note is playing
if (note)
stop_all_notes();
@ -485,7 +496,6 @@ if (audio_config.enable) {
TIMSK3 |= _BV(OCIE3A);
TCCR3A |= _BV(COM3A1);
#endif
sei();
}
}
@ -493,7 +503,10 @@ if (audio_config.enable) {
void play_sample(uint8_t * s, uint16_t l, bool r) {
if (audio_config.enable) {
TIMSK3 &= ~_BV(OCIE3A);
if (!inited) {
audio_init();
}
stop_all_notes();
place_int = 0;
sample = s;
@ -512,7 +525,10 @@ if (audio_config.enable) {
void play_note(double freq, int vol) {
if (audio_config.enable && voices < 8) {
cli();
TIMSK3 &= ~_BV(OCIE3A);
if (!inited) {
audio_init();
}
// Cancel notes if notes are playing
if (notes)
stop_all_notes();
@ -532,7 +548,6 @@ if (audio_config.enable && voices < 8) {
TIMSK3 |= _BV(OCIE3A);
TCCR3A |= _BV(COM3A1);
#endif
sei();
}
}
@ -545,8 +560,11 @@ void play_startup_tone()
{
}
__attribute__ ((weak))
void play_goodbye_tone()
{
}
//------------------------------------------------------------------------------

1
quantum/audio.h
View file

@ -55,7 +55,6 @@ void play_sample(uint8_t * s, uint16_t l, bool r);
void play_note(double freq, int vol);
void stop_note(double freq);
void stop_all_notes(void);
void init_notes(void);
void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest);
#define SCALE (int []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \