git.zerfleddert.de Git - fnordlicht-mini/blob - firmware/fnordlicht-firmware/color.h

   1 /* vim:ts=4 sts=4 et tw=80
   2  *
   3  *         fnordlicht firmware
   4  *
   5  *    for additional information please
   6  *    see http://lochraster.org/fnordlichtmini
   7  *
   8  * (c) by Alexander Neumann <alexander@bumpern.de>
   9  *     Lars Noschinski <lars@public.noschinski.de>
  10  *
  11  * This program is free software: you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License version 3 as published by
  13  * the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but WITHOUT
  16  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18  * more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along with
  21  * this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include <stdint.h>
  25 /* for PWM_CHANNELS */
  26 #include "globals.h"
  27
  28 #ifndef COLOR_H
  29 #define COLOR_H
  30
  31 #if PWM_CHANNELS != 3
  32 #error "PWM_CHANNELS is not 3, this is unsupported!"
  33 #endif
  34
  35 struct rgb_color_t
  36 {
  37     union {
  38         struct {
  39             uint8_t red;
  40             uint8_t green;
  41             uint8_t blue;
  42         };
  43         uint8_t rgb[3];
  44     };
  45 };
  46
  47 struct rgb_color_offset_t {
  48     union {
  49         struct {
  50             int8_t red;
  51             int8_t green;
  52             int8_t blue;
  53         };
  54         int8_t rgb[3];
  55     };
  56 };
  57
  58 struct hsv_color_t
  59 {
  60     union {
  61         struct {
  62             uint16_t hue;
  63             uint8_t saturation;
  64             uint8_t value;
  65         };
  66         uint8_t hsv[4];
  67     };
  68 };
  69
  70 struct hsv_color_offset_t {
  71     int16_t hue;
  72     int8_t saturation;
  73     int8_t value;
  74 };
  75
  76 struct dual_color_t
  77 {
  78     struct rgb_color_t rgb;
  79     struct hsv_color_t hsv;
  80 };
  81
  82 union color_t
  83 {
  84     /* rgb */
  85     struct {
  86         union {
  87             struct {
  88                 uint8_t red;
  89                 uint8_t green;
  90                 uint8_t blue;
  91             };
  92             uint8_t rgb[3];
  93         };
  94         /* marker, 0xff if rgb */
  95         uint8_t rgb_marker;
  96     };
  97
  98     /* hsv */
  99     struct {
 100         uint8_t saturation;
 101         uint8_t value;
 102         /* 0 <= hue <= 349, otherwise rgb might be assumed */
 103         uint16_t hue;
 104     };
 105 };
 106
 107 #endif