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led_tables.c
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led_tables.c
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/*
Copyright 2017 Fred Sundvik
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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 "led_tables.h"
// clang-format off
#ifdef USE_CIE1931_CURVE
// 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 CIE1931_CURVE[256] PROGMEM = {
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, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7,
7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12,
12, 12, 13, 13, 13, 14, 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, 27, 28, 29, 29, 30, 30, 31, 32, 32, 33, 34, 34, 35,
36, 36, 37, 38, 38, 39, 40, 41, 41, 42, 43, 44, 45, 45, 46, 47,
48, 49, 50, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 76, 77, 78, 79,
80, 81, 83, 84, 85, 86, 88, 89, 90, 91, 93, 94, 95, 97, 98, 100,
101, 102, 104, 105, 107, 108, 109, 111, 112, 114, 115, 117, 119, 120, 122, 123,
125, 126, 128, 130, 131, 133, 135, 136, 138, 140, 142, 143, 145, 147, 149, 150,
152, 154, 156, 158, 160, 162, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181,
183, 186, 188, 190, 192, 194, 196, 198, 201, 203, 205, 207, 209, 212, 214, 216,
219, 221, 223, 226, 228, 231, 233, 235, 238, 240, 243, 245, 248, 250, 253, 255
};
#endif
#ifdef USE_LED_BREATHING_TABLE
const uint8_t LED_BREATHING_TABLE[256] 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,
37, 40, 42, 44, 47, 49, 52, 54, 57, 59, 62, 65, 67, 70, 73, 76,
79, 82, 85, 88, 90, 93, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124,
127, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 162, 165, 167, 170, 173,
176, 179, 182, 185, 188, 190, 193, 196, 198, 201, 203, 206, 208, 211, 213, 215,
218, 220, 222, 224, 226, 228, 230, 232, 234, 235, 237, 238, 240, 241, 243, 244,
245, 246, 248, 249, 250, 250, 251, 252, 253, 253, 254, 254, 254, 255, 255, 255,
255, 255, 255, 255, 254, 254, 254, 253, 253, 252, 251, 250, 250, 249, 248, 246,
245, 244, 243, 241, 240, 238, 237, 235, 234, 232, 230, 228, 226, 224, 222, 220,
218, 215, 213, 211, 208, 206, 203, 201, 198, 196, 193, 190, 188, 185, 182, 179,
176, 173, 170, 167, 165, 162, 158, 155, 152, 149, 146, 143, 140, 137, 134, 131,
128, 124, 121, 118, 115, 112, 109, 106, 103, 100, 97, 93, 90, 88, 85, 82,
79, 76, 73, 70, 67, 65, 62, 59, 57, 54, 52, 49, 47, 44, 42, 40,
37, 35, 33, 31, 29, 27, 25, 23, 21, 20, 18, 17, 15, 14, 12, 11,
10, 9, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0
};
#endif
// clang-format on