Retain brightness with lighting layers (#13025)
Add guard `RGBLIGHT_LAYERS_RETAIN_VAL` to retain the currently used val when applying lighting layers.master
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@ -326,6 +326,10 @@ would turn the layer 0 (or 1) on and off again three times when `DEBUG` is press
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Normally lighting layers are not shown when RGB Lighting is disabled (e.g. with `RGB_TOG` keycode). If you would like lighting layers to work even when the RGB Lighting is otherwise off, add `#define RGBLIGHT_LAYERS_OVERRIDE_RGB_OFF` to your `config.h`.
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### Retain brightness
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Usually lighting layers apply their configured brightness once activated. If you would like lighting layers to retain the currently used brightness (as returned by `rgblight_get_val()`), add `#define RGBLIGHT_LAYERS_RETAIN_VAL` to your `config.h`.
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## Functions
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If you need to change your RGB lighting in code, for example in a macro to change the color whenever you switch layers, QMK provides a set of functions to assist you. See [`rgblight.h`](https://github.com/qmk/qmk_firmware/blob/master/quantum/rgblight/rgblight.h) for the full list, but the most commonly used functions include:
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@ -694,6 +694,9 @@ bool rgblight_get_layer_state(uint8_t layer) {
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// Write any enabled LED layers into the buffer
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static void rgblight_layers_write(void) {
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# ifdef RGBLIGHT_LAYERS_RETAIN_VAL
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uint8_t current_val = rgblight_get_val();
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# endif
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uint8_t i = 0;
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// For each layer
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for (const rgblight_segment_t *const *layer_ptr = rgblight_layers; i < RGBLIGHT_MAX_LAYERS; layer_ptr++, i++) {
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@ -714,7 +717,11 @@ static void rgblight_layers_write(void) {
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// Write segment.count LEDs
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LED_TYPE *const limit = &led[MIN(segment.index + segment.count, RGBLED_NUM)];
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for (LED_TYPE *led_ptr = &led[segment.index]; led_ptr < limit; led_ptr++) {
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# ifdef RGBLIGHT_LAYERS_RETAIN_VAL
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sethsv(segment.hue, segment.sat, current_val, led_ptr);
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# else
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sethsv(segment.hue, segment.sat, segment.val, led_ptr);
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# endif
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}
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segment_ptr++;
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}
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