diff options
Diffstat (limited to 'led_test.c')
| -rw-r--r-- | led_test.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/led_test.c b/led_test.c new file mode 100644 index 0000000000..d358ef81eb --- /dev/null +++ b/led_test.c @@ -0,0 +1,170 @@ +/* +The MIT License (MIT) + +Copyright (c) 2016 Fred Sundvik + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ +#include "led_test.h" +#include "gfx.h" +#include "math.h" + +keyframe_animation_t led_test_animation = { + .num_frames = 14, + .loop = true, + .frame_lengths = { + MS2ST(1000), // fade in + MS2ST(1000), // no op (leds on) + MS2ST(1000), // fade out + MS2ST(1000), // crossfade + MS2ST(3000), // left to rigt (outside in) + MS2ST(1000), // crossfade + MS2ST(3000), // top_to_bottom + 0, // mirror leds + MS2ST(1000), // crossfade + MS2ST(3000), // left_to_right (mirrored, so inside out) + MS2ST(1000), // crossfade + MS2ST(3000), // top_to_bottom + 0, // normal leds + MS2ST(1000), // crossfade + + }, + .frame_functions = { + keyframe_fade_in_all_leds, + keyframe_no_operation, + keyframe_fade_out_all_leds, + keyframe_led_crossfade, + keyframe_led_left_to_right_gradient, + keyframe_led_crossfade, + keyframe_led_top_to_bottom_gradient, + keyframe_mirror_led_orientation, + keyframe_led_crossfade, + keyframe_led_left_to_right_gradient, + keyframe_led_crossfade, + keyframe_led_top_to_bottom_gradient, + keyframe_normal_led_orientation, + keyframe_led_crossfade, + }, +}; + +static uint8_t fade_led_color(keyframe_animation_t* animation, int from, int to) { + int frame_length = animation->frame_lengths[animation->current_frame]; + int current_pos = frame_length - animation->time_left_in_frame; + int delta = to - from; + int luma = (delta * current_pos) / frame_length; + luma += from; + return luma; +} + +static void keyframe_fade_all_leds_from_to(keyframe_animation_t* animation, uint8_t from, uint8_t to) { + uint8_t luma = fade_led_color(animation, from, to); + color_t color = LUMA2COLOR(luma); + gdispGClear(LED_DISPLAY, color); +} + +// TODO: Should be customizable per keyboard +#define NUM_ROWS 7 +#define NUM_COLS 7 + +static uint8_t crossfade_start_frame[NUM_ROWS][NUM_COLS]; +static uint8_t crossfade_end_frame[NUM_ROWS][NUM_COLS]; + +static uint8_t compute_gradient_color(float t, float index, float num) { + const float target = t * (num - 1.0f); + const float half_num = num / 2.0f; + float d = fabs(index - target); + if (d > half_num) { + d = num - d; + } + d = 1.0f - (d / half_num); + 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); + return true; +} + +bool keyframe_fade_out_all_leds(keyframe_animation_t* animation, visualizer_state_t* state) { + (void)state; + 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; + float frame_length = animation->frame_lengths[animation->current_frame]; + float 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; +} + +bool keyframe_led_top_to_bottom_gradient(keyframe_animation_t* animation, visualizer_state_t* state) { + (void)state; + float frame_length = animation->frame_lengths[animation->current_frame]; + float current_pos = frame_length - animation->time_left_in_frame; + float t = current_pos / frame_length; + for (int i=0; i< NUM_ROWS; i++) { + uint8_t color = compute_gradient_color(t, i, NUM_ROWS); + gdispGDrawLine(LED_DISPLAY, 0, i, NUM_COLS - 1, i, LUMA2COLOR(color)); + } + return true; +} + +static void copy_current_led_state(uint8_t* dest) { + for (int i=0;i<NUM_ROWS;i++) { + for (int j=0;j<NUM_COLS;j++) { + dest[i*NUM_COLS + j] = gdispGGetPixelColor(LED_DISPLAY, j, i); + } + } +} +bool keyframe_led_crossfade(keyframe_animation_t* animation, visualizer_state_t* state) { + (void)state; + if (animation->first_update_of_frame) { + copy_current_led_state(&crossfade_start_frame[0][0]); + run_next_keyframe(animation, state); + copy_current_led_state(&crossfade_end_frame[0][0]); + } + for (int i=0;i<NUM_ROWS;i++) { + for (int j=0;j<NUM_COLS;j++) { + color_t color = LUMA2COLOR(fade_led_color(animation, crossfade_start_frame[i][j], crossfade_end_frame[i][j])); + gdispGDrawPixel(LED_DISPLAY, j, i, color); + } + } + return true; +} + +bool keyframe_mirror_led_orientation(keyframe_animation_t* animation, visualizer_state_t* state) { + (void)state; + (void)animation; + gdispGSetOrientation(LED_DISPLAY, GDISP_ROTATE_180); + return false; +} + +bool keyframe_normal_led_orientation(keyframe_animation_t* animation, visualizer_state_t* state) { + (void)state; + (void)animation; + gdispGSetOrientation(LED_DISPLAY, GDISP_ROTATE_0); + return false; +} |