4 Copyright (c) 2016 Fred Sundvik
6 Permission is hereby granted, free of charge, to any person obtaining a copy
7 of this software and associated documentation files (the "Software"), to deal
8 in the Software without restriction, including without limitation the rights
9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 copies of the Software, and to permit persons to whom the Software is
11 furnished to do so, subject to the following conditions:
13 The above copyright notice and this permission notice shall be included in all
14 copies or substantial portions of the Software.
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #define CROSSFADE_TIME 1000
29 #define GRADIENT_TIME 3000
31 keyframe_animation_t led_test_animation = {
35 gfxMillisecondsToTicks(1000), // fade in
36 gfxMillisecondsToTicks(1000), // no op (leds on)
37 gfxMillisecondsToTicks(1000), // fade out
38 gfxMillisecondsToTicks(CROSSFADE_TIME), // crossfade
39 gfxMillisecondsToTicks(GRADIENT_TIME), // left to rigt (outside in)
40 gfxMillisecondsToTicks(CROSSFADE_TIME), // crossfade
41 gfxMillisecondsToTicks(GRADIENT_TIME), // top_to_bottom
43 gfxMillisecondsToTicks(CROSSFADE_TIME), // crossfade
44 gfxMillisecondsToTicks(GRADIENT_TIME), // left_to_right (mirrored, so inside out)
45 gfxMillisecondsToTicks(CROSSFADE_TIME), // crossfade
46 gfxMillisecondsToTicks(GRADIENT_TIME), // top_to_bottom
48 gfxMillisecondsToTicks(CROSSFADE_TIME), // crossfade
52 keyframe_fade_in_all_leds,
53 keyframe_no_operation,
54 keyframe_fade_out_all_leds,
55 keyframe_led_crossfade,
56 keyframe_led_left_to_right_gradient,
57 keyframe_led_crossfade,
58 keyframe_led_top_to_bottom_gradient,
59 keyframe_mirror_led_orientation,
60 keyframe_led_crossfade,
61 keyframe_led_left_to_right_gradient,
62 keyframe_led_crossfade,
63 keyframe_led_top_to_bottom_gradient,
64 keyframe_normal_led_orientation,
65 keyframe_led_crossfade,
69 static uint8_t fade_led_color(keyframe_animation_t* animation, int from, int to) {
70 int frame_length = animation->frame_lengths[animation->current_frame];
71 int current_pos = frame_length - animation->time_left_in_frame;
72 int delta = to - from;
73 int luma = (delta * current_pos) / frame_length;
78 static void keyframe_fade_all_leds_from_to(keyframe_animation_t* animation, uint8_t from, uint8_t to) {
79 uint8_t luma = fade_led_color(animation, from, to);
80 color_t color = LUMA2COLOR(luma);
81 gdispGClear(LED_DISPLAY, color);
84 // TODO: Should be customizable per keyboard
88 static uint8_t crossfade_start_frame[NUM_ROWS][NUM_COLS];
89 static uint8_t crossfade_end_frame[NUM_ROWS][NUM_COLS];
91 static uint8_t compute_gradient_color(float t, float index, float num) {
92 const float two_pi = M_2_PI;
93 float normalized_index = (1.0f - index / (num - 1.0f)) * two_pi;
94 float x = t * two_pi + normalized_index;
95 float v = 0.5 * (cosf(x) + 1.0f);
96 return (uint8_t)(255.0f * v);
99 bool keyframe_fade_in_all_leds(keyframe_animation_t* animation, visualizer_state_t* state) {
101 keyframe_fade_all_leds_from_to(animation, 0, 255);
105 bool keyframe_fade_out_all_leds(keyframe_animation_t* animation, visualizer_state_t* state) {
107 keyframe_fade_all_leds_from_to(animation, 255, 0);
111 bool keyframe_led_left_to_right_gradient(keyframe_animation_t* animation, visualizer_state_t* state) {
113 float frame_length = animation->frame_lengths[animation->current_frame];
114 float current_pos = frame_length - animation->time_left_in_frame;
115 float t = current_pos / frame_length;
116 for (int i=0; i< NUM_COLS; i++) {
117 uint8_t color = compute_gradient_color(t, i, NUM_COLS);
118 gdispGDrawLine(LED_DISPLAY, i, 0, i, NUM_ROWS - 1, LUMA2COLOR(color));
123 bool keyframe_led_top_to_bottom_gradient(keyframe_animation_t* animation, visualizer_state_t* state) {
125 float frame_length = animation->frame_lengths[animation->current_frame];
126 float current_pos = frame_length - animation->time_left_in_frame;
127 float t = current_pos / frame_length;
128 for (int i=0; i< NUM_ROWS; i++) {
129 uint8_t color = compute_gradient_color(t, i, NUM_ROWS);
130 gdispGDrawLine(LED_DISPLAY, 0, i, NUM_COLS - 1, i, LUMA2COLOR(color));
135 static void copy_current_led_state(uint8_t* dest) {
136 for (int i=0;i<NUM_ROWS;i++) {
137 for (int j=0;j<NUM_COLS;j++) {
138 dest[i*NUM_COLS + j] = gdispGGetPixelColor(LED_DISPLAY, j, i);
142 bool keyframe_led_crossfade(keyframe_animation_t* animation, visualizer_state_t* state) {
144 if (animation->first_update_of_frame) {
145 copy_current_led_state(&crossfade_start_frame[0][0]);
146 run_next_keyframe(animation, state);
147 copy_current_led_state(&crossfade_end_frame[0][0]);
149 for (int i=0;i<NUM_ROWS;i++) {
150 for (int j=0;j<NUM_COLS;j++) {
151 color_t color = LUMA2COLOR(fade_led_color(animation, crossfade_start_frame[i][j], crossfade_end_frame[i][j]));
152 gdispGDrawPixel(LED_DISPLAY, j, i, color);
158 bool keyframe_mirror_led_orientation(keyframe_animation_t* animation, visualizer_state_t* state) {
161 gdispGSetOrientation(LED_DISPLAY, GDISP_ROTATE_180);
165 bool keyframe_normal_led_orientation(keyframe_animation_t* animation, visualizer_state_t* state) {
168 gdispGSetOrientation(LED_DISPLAY, GDISP_ROTATE_0);