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Add left to right gradient keyframe for leds

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This commit is contained in:
Fred Sundvik 2016-04-24 14:54:40 +03:00
parent a960a1b006
commit 0e0488623e
2 changed files with 33 additions and 2 deletions
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34
led_test.c
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@ -23,15 +23,21 @@ SOFTWARE.
*/
#include "led_test.h"
#include "gfx.h"
#include "math.h"
keyframe_animation_t led_test_animation = {
.num_frames = 3,
.num_frames = 4,
.loop = true,
.frame_lengths = {MS2ST(1000), MS2ST(1000), MS2ST(1000)},
.frame_lengths = {
MS2ST(1000),
MS2ST(1000),
MS2ST(1000),
MS2ST(3000)},
.frame_functions = {
keyframe_fade_in_all_leds,
keyframe_no_operation,
keyframe_fade_out_all_leds,
keyframe_led_left_to_right_gradient,
},
};
@ -46,6 +52,18 @@ static void keyframe_fade_all_leds_from_to(keyframe_animation_t* animation, uint
gdispGFlush(LED_DISPLAY);
}
// TODO: Should be customizable per keyboard
#define NUM_ROWS 7
#define NUM_COLS 7
static uint8_t compute_gradient_color(float t, float index, float num) {
float d = fabs(index - t);
if (d > num / 2.0f) {
d = num - d;
}
return (uint8_t)(255.0f * d);
}
bool keyframe_fade_in_all_leds(keyframe_animation_t* animation, visualizer_state_t* state) {
(void)state;
keyframe_fade_all_leds_from_to(animation, 0, 255);
@ -57,3 +75,15 @@ bool keyframe_fade_out_all_leds(keyframe_animation_t* animation, visualizer_stat
keyframe_fade_all_leds_from_to(animation, 255, 0);
return true;
}
bool keyframe_led_left_to_right_gradient(keyframe_animation_t* animation, visualizer_state_t* state) {
(void)state;
int frame_length = animation->frame_lengths[animation->current_frame];
int current_pos = frame_length - animation->time_left_in_frame;
float t = current_pos / frame_length;
for (int i=0; i< NUM_COLS; i++) {
uint8_t color = compute_gradient_color(t, i, NUM_COLS);
gdispGDrawLine(LED_DISPLAY, i, 0, i, NUM_ROWS - 1, LUMA2COLOR(color));
}
return true;
}

1
led_test.h
View file

@ -29,6 +29,7 @@ SOFTWARE.
bool keyframe_fade_in_all_leds(keyframe_animation_t* animation, visualizer_state_t* state);
bool keyframe_fade_out_all_leds(keyframe_animation_t* animation, visualizer_state_t* state);
bool keyframe_led_left_to_right_gradient(keyframe_animation_t* animation, visualizer_state_t* state);
extern keyframe_animation_t led_test_animation;