diff options
| -rw-r--r-- | quantum/rgblight.c | 55 |
1 files changed, 33 insertions, 22 deletions
diff --git a/quantum/rgblight.c b/quantum/rgblight.c index 9eac87a207..d550c58660 100644 --- a/quantum/rgblight.c +++ b/quantum/rgblight.c @@ -6,24 +6,37 @@ #include "rgblight.h" #include "debug.h" +// Lightness curve using the CIE 1931 lightness formula +//Generated by the python script provided in http://jared.geek.nz/2013/feb/linear-led-pwm const uint8_t DIM_CURVE[] PROGMEM = { - 0, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, - 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, - 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, - 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, - 15, 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 20, - 20, 20, 21, 21, 22, 22, 22, 23, 23, 24, 24, 25, 25, 25, 26, 26, - 27, 27, 28, 28, 29, 29, 30, 30, 31, 32, 32, 33, 33, 34, 35, 35, - 36, 36, 37, 38, 38, 39, 40, 40, 41, 42, 43, 43, 44, 45, 46, 47, - 48, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, - 63, 64, 65, 66, 68, 69, 70, 71, 73, 74, 75, 76, 78, 79, 81, 82, - 83, 85, 86, 88, 90, 91, 93, 94, 96, 98, 99, 101, 103, 105, 107, 109, - 110, 112, 114, 116, 118, 121, 123, 125, 127, 129, 132, 134, 136, 139, 141, 144, - 146, 149, 151, 154, 157, 159, 162, 165, 168, 171, 174, 177, 180, 183, 186, 190, - 193, 196, 200, 203, 207, 211, 214, 218, 222, 226, 230, 234, 238, 242, 248, 255 -}; + 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, + 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, + 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, + 7, 8, 8, 8, 8, 9, 9, 9, 10, 10, + 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, + 13, 14, 14, 15, 15, 15, 16, 16, 17, 17, + 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, + 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, + 28, 28, 29, 29, 30, 31, 31, 32, 32, 33, + 34, 34, 35, 36, 37, 37, 38, 39, 39, 40, + 41, 42, 43, 43, 44, 45, 46, 47, 47, 48, + 49, 50, 51, 52, 53, 54, 54, 55, 56, 57, + 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, + 68, 70, 71, 72, 73, 74, 75, 76, 77, 79, + 80, 81, 82, 83, 85, 86, 87, 88, 90, 91, + 92, 94, 95, 96, 98, 99, 100, 102, 103, 105, + 106, 108, 109, 110, 112, 113, 115, 116, 118, 120, + 121, 123, 124, 126, 128, 129, 131, 132, 134, 136, + 138, 139, 141, 143, 145, 146, 148, 150, 152, 154, + 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, + 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, + 196, 198, 200, 202, 204, 207, 209, 211, 214, 216, + 218, 220, 223, 225, 228, 230, 232, 235, 237, 240, + 242, 245, 247, 250, 252, 255, + }; + const uint8_t RGBLED_BREATHING_TABLE[] PROGMEM = { 0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 23, 25, 27, 29, 31, 33, 35, @@ -61,13 +74,8 @@ uint8_t rgblight_inited = 0; void sethsv(uint16_t hue, uint8_t sat, uint8_t val, struct cRGB *led1) { - // Convert hue, saturation, and value (HSV/HSB) to RGB. DIM_CURVE is used only - // on value and saturation (inverted). This looks the most natural. uint8_t r = 0, g = 0, b = 0, base, color; - val = pgm_read_byte(&DIM_CURVE[val]); - sat = 255 - pgm_read_byte(&DIM_CURVE[255 - sat]); - if (sat == 0) { // Acromatic color (gray). Hue doesn't mind. r = val; g = val; @@ -109,6 +117,9 @@ void sethsv(uint16_t hue, uint8_t sat, uint8_t val, struct cRGB *led1) { break; } } + r = pgm_read_byte(&DIM_CURVE[r]); + g = pgm_read_byte(&DIM_CURVE[g]); + b = pgm_read_byte(&DIM_CURVE[b]); setrgb(r, g, b, led1); } |