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Address #1689 by using a formula to define the breathing curve (#1692)

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* Address #1689 by using a formula to define the breathing curve and exposing defines to control the shape of the curve.

* Tweak the behavior of breathing for clueboard
This commit is contained in:
skullydazed 2017-10-17 16:47:49 -07:00 • committed by GitHub
parent d3fe6a0588
commit ad49db8cd2
5 changed files with 22 additions and 3 deletions
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7
quantum/rgblight.c
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@ -13,6 +13,7 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <math.h>
#include <avr/eeprom.h>
#include <avr/interrupt.h>
#include <util/delay.h>
@ -465,13 +466,17 @@ void rgblight_task(void) {
void rgblight_effect_breathing(uint8_t interval) {
static uint8_t pos = 0;
static uint16_t last_timer = 0;
float val;
if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_BREATHING_INTERVALS[interval])) {
return;
}
last_timer = timer_read();
rgblight_sethsv_noeeprom(rgblight_config.hue, rgblight_config.sat, pgm_read_byte(&LED_BREATHING_TABLE[pos]));
// http://sean.voisen.org/blog/2011/10/breathing-led-with-arduino/
val = (exp(sin((pos/255.0)*M_PI)) - RGBLIGHT_EFFECT_BREATHE_CENTER/M_E)*(RGBLIGHT_EFFECT_BREATHE_MAX/(M_E-1/M_E));
rgblight_sethsv_noeeprom(rgblight_config.hue, rgblight_config.sat, val);
pos = (pos + 1) % 256;
}
void rgblight_effect_rainbow_mood(uint8_t interval) {