1 /* Copyright 2017 Fred Sundvik
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 2 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #include "lcd_backlight_keyframes.h"
19 bool lcd_backlight_keyframe_animate_color(keyframe_animation_t* animation, visualizer_state_t* state) {
20 int frame_length = animation->frame_lengths[animation->current_frame];
21 int current_pos = frame_length - animation->time_left_in_frame;
22 uint8_t t_h = LCD_HUE(state->target_lcd_color);
23 uint8_t t_s = LCD_SAT(state->target_lcd_color);
24 uint8_t t_i = LCD_INT(state->target_lcd_color);
25 uint8_t p_h = LCD_HUE(state->prev_lcd_color);
26 uint8_t p_s = LCD_SAT(state->prev_lcd_color);
27 uint8_t p_i = LCD_INT(state->prev_lcd_color);
29 uint8_t d_h1 = t_h - p_h; //Modulo arithmetic since we want to wrap around
31 // Chose the shortest way around
32 int d_h = abs(d_h2) < d_h1 ? d_h2 : d_h1;
36 int hue = (d_h * current_pos) / frame_length;
37 int sat = (d_s * current_pos) / frame_length;
38 int intensity = (d_i * current_pos) / frame_length;
39 //dprintf("%X -> %X = %X\n", p_h, t_h, hue);
43 state->current_lcd_color = LCD_COLOR(hue, sat, intensity);
45 LCD_HUE(state->current_lcd_color),
46 LCD_SAT(state->current_lcd_color),
47 LCD_INT(state->current_lcd_color));
52 bool lcd_backlight_keyframe_set_color(keyframe_animation_t* animation, visualizer_state_t* state) {
54 state->prev_lcd_color = state->target_lcd_color;
55 state->current_lcd_color = state->target_lcd_color;
57 LCD_HUE(state->current_lcd_color),
58 LCD_SAT(state->current_lcd_color),
59 LCD_INT(state->current_lcd_color));
63 bool lcd_backlight_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state) {
66 lcd_backlight_hal_color(0, 0, 0);
70 bool lcd_backlight_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state) {
73 lcd_backlight_color(LCD_HUE(state->current_lcd_color),
74 LCD_SAT(state->current_lcd_color),
75 LCD_INT(state->current_lcd_color));