qmk-firmware/quantum/rgb_matrix_animations/gradient_left_right_anim.h
Rob Haswell cf30c5d17f RGB matrix effect - left-right gradient (#7742)
* Left-right gradient.

* Update the comment to match the new functionality.

* CPP does integer division so this round is not necessary.

* The x-range is actually 224, update comment and use bit-shifting again.

* Update docs with gradient left-right effect and associated "DISABLE" option.
2020-01-07 21:25:17 +00:00

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C

#ifndef DISABLE_RGB_MATRIX_GRADIENT_LEFT_RIGHT
RGB_MATRIX_EFFECT(GRADIENT_LEFT_RIGHT)
# ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
bool GRADIENT_LEFT_RIGHT(effect_params_t* params) {
RGB_MATRIX_USE_LIMITS(led_min, led_max);
HSV hsv = rgb_matrix_config.hsv;
uint8_t scale = scale8(64, rgb_matrix_config.speed);
for (uint8_t i = led_min; i < led_max; i++) {
RGB_MATRIX_TEST_LED_FLAGS();
// The x range will be 0..224, map this to 0..7
// Relies on hue being 8-bit and wrapping
hsv.h = rgb_matrix_config.hsv.h + (scale * g_led_config.point[i].x >> 5);
RGB rgb = hsv_to_rgb(hsv);
rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
}
return led_max < DRIVER_LED_TOTAL;
}
# endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
#endif // DISABLE_RGB_MATRIX_GRADIENT_LEFT_RIGHT