65 lines
3.6 KiB
C
65 lines
3.6 KiB
C
/*
|
|
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
|