qmk_firmware/quantum/rgb_matrix_runners/effect_runner_reactive.h
Albert Y a913db63aa
Fix zero condition of reactive runners that will suspend RGB animation (#12710)
* Avoid zero or overflow from user's rgb_matrix_config.speed

* Avoid zero tick for reactive splash.

* Avoid zero time for animation runner.

Co-authored-by: filterpaper <filterpaper@localhost>
2021-06-23 19:45:05 +10:00

30 lines
1.0 KiB
C

#pragma once
#ifdef RGB_MATRIX_KEYREACTIVE_ENABLED
typedef HSV (*reactive_f)(HSV hsv, uint16_t offset);
bool effect_runner_reactive(effect_params_t* params, reactive_f effect_func) {
RGB_MATRIX_USE_LIMITS(led_min, led_max);
uint16_t max_tick = 65535 / qadd8(rgb_matrix_config.speed, 1);
for (uint8_t i = led_min; i < led_max; i++) {
RGB_MATRIX_TEST_LED_FLAGS();
uint16_t tick = max_tick;
// Reverse search to find most recent key hit
for (int8_t j = g_last_hit_tracker.count - 1; j >= 0; j--) {
if (g_last_hit_tracker.index[j] == i && g_last_hit_tracker.tick[j] < tick) {
tick = g_last_hit_tracker.tick[j];
break;
}
}
uint16_t offset = scale16by8(tick, qadd8(rgb_matrix_config.speed, 1));
RGB rgb = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, offset));
rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
}
return led_max < DRIVER_LED_TOTAL;
}
#endif // RGB_MATRIX_KEYREACTIVE_ENABLED