350 lines
12 KiB
C
350 lines
12 KiB
C
/*
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The MIT License (MIT)
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Copyright (c) 2016 Fred Sundvik
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "visualizer.h"
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#include "ch.h"
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#include <string.h>
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#ifdef LCD_ENABLE
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#include "gfx.h"
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#endif
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#ifdef LCD_BACKLIGHT_ENABLE
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#include "lcd_backlight.h"
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#endif
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//#define DEBUG_VISUALIZER
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#ifdef DEBUG_VISUALIZER
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#include "debug.h"
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#else
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#include "nodebug.h"
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#endif
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static visualizer_keyboard_status_t current_status = {
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.layer = 0xFFFFFFFF,
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.default_layer = 0xFFFFFFFF,
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.leds = 0xFFFFFFFF,
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};
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static bool same_status(visualizer_keyboard_status_t* status1, visualizer_keyboard_status_t* status2) {
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return memcmp(status1, status2, sizeof(visualizer_keyboard_status_t)) == 0;
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}
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static event_source_t layer_changed_event;
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static bool visualizer_enabled = false;
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#define MAX_SIMULTANEOUS_ANIMATIONS 4
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static keyframe_animation_t* animations[MAX_SIMULTANEOUS_ANIMATIONS] = {};
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void start_keyframe_animation(keyframe_animation_t* animation) {
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animation->current_frame = -1;
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animation->time_left_in_frame = 0;
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animation->need_update = true;
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int free_index = -1;
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for (int i=0;i<MAX_SIMULTANEOUS_ANIMATIONS;i++) {
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if (animations[i] == animation) {
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return;
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}
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if (free_index == -1 && animations[i] == NULL) {
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free_index=i;
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}
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}
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if (free_index!=-1) {
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animations[free_index] = animation;
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}
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}
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void stop_keyframe_animation(keyframe_animation_t* animation) {
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animation->current_frame = animation->num_frames;
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animation->time_left_in_frame = 0;
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animation->need_update = true;
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for (int i=0;i<MAX_SIMULTANEOUS_ANIMATIONS;i++) {
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if (animations[i] == animation) {
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animations[i] = NULL;
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return;
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}
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}
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}
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static bool update_keyframe_animation(keyframe_animation_t* animation, visualizer_state_t* state, systime_t delta, systime_t* sleep_time) {
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dprintf("Animation frame%d, left %d, delta %d\n", animation->current_frame,
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animation->time_left_in_frame, delta);
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if (animation->current_frame == animation->num_frames) {
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animation->need_update = false;
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return false;
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}
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if (animation->current_frame == -1) {
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animation->current_frame = 0;
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animation->time_left_in_frame = animation->frame_lengths[0];
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animation->need_update = true;
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} else {
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animation->time_left_in_frame -= delta;
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while (animation->time_left_in_frame <= 0) {
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int left = animation->time_left_in_frame;
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if (animation->need_update) {
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animation->time_left_in_frame = 0;
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(*animation->frame_functions[animation->current_frame])(animation, state);
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}
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animation->current_frame++;
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animation->need_update = true;
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if (animation->current_frame == animation->num_frames) {
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if (animation->loop) {
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animation->current_frame = 0;
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}
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else {
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stop_keyframe_animation(animation);
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return false;
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}
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}
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delta = -left;
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animation->time_left_in_frame = animation->frame_lengths[animation->current_frame];
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animation->time_left_in_frame -= delta;
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}
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}
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if (animation->need_update) {
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animation->need_update = (*animation->frame_functions[animation->current_frame])(animation, state);
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}
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int wanted_sleep = animation->need_update ? 10 : animation->time_left_in_frame;
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if ((unsigned)wanted_sleep < *sleep_time) {
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*sleep_time = wanted_sleep;
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}
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return true;
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}
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bool keyframe_no_operation(keyframe_animation_t* animation, visualizer_state_t* state) {
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(void)animation;
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(void)state;
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return false;
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}
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#ifdef LCD_BACKLIGHT_ENABLE
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bool keyframe_animate_backlight_color(keyframe_animation_t* animation, visualizer_state_t* state) {
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int frame_length = animation->frame_lengths[1];
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int current_pos = frame_length - animation->time_left_in_frame;
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uint8_t t_h = LCD_HUE(state->target_lcd_color);
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uint8_t t_s = LCD_SAT(state->target_lcd_color);
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uint8_t t_i = LCD_INT(state->target_lcd_color);
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uint8_t p_h = LCD_HUE(state->prev_lcd_color);
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uint8_t p_s = LCD_SAT(state->prev_lcd_color);
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uint8_t p_i = LCD_INT(state->prev_lcd_color);
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uint8_t d_h1 = t_h - p_h; //Modulo arithmetic since we want to wrap around
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int d_h2 = t_h - p_h;
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// Chose the shortest way around
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int d_h = abs(d_h2) < d_h1 ? d_h2 : d_h1;
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int d_s = t_s - p_s;
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int d_i = t_i - p_i;
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int hue = (d_h * current_pos) / frame_length;
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int sat = (d_s * current_pos) / frame_length;
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int intensity = (d_i * current_pos) / frame_length;
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//dprintf("%X -> %X = %X\n", p_h, t_h, hue);
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hue += p_h;
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sat += p_s;
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intensity += p_i;
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state->current_lcd_color = LCD_COLOR(hue, sat, intensity);
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lcd_backlight_color(
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LCD_HUE(state->current_lcd_color),
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LCD_SAT(state->current_lcd_color),
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LCD_INT(state->current_lcd_color));
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return true;
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}
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bool keyframe_set_backlight_color(keyframe_animation_t* animation, visualizer_state_t* state) {
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(void)animation;
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state->prev_lcd_color = state->target_lcd_color;
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state->current_lcd_color = state->target_lcd_color;
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lcd_backlight_color(
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LCD_HUE(state->current_lcd_color),
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LCD_SAT(state->current_lcd_color),
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LCD_INT(state->current_lcd_color));
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return false;
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}
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#endif // LCD_BACKLIGHT_ENABLE
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#ifdef LCD_ENABLE
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bool keyframe_display_layer_text(keyframe_animation_t* animation, visualizer_state_t* state) {
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(void)animation;
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gdispClear(White);
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gdispDrawString(0, 10, state->layer_text, state->font_dejavusansbold12, Black);
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gdispFlush();
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return false;
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}
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static void format_layer_bitmap_string(uint16_t default_layer, uint16_t layer, char* buffer) {
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for (int i=0; i<16;i++)
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{
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uint32_t mask = (1u << i);
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if (default_layer & mask) {
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if (layer & mask) {
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*buffer = 'B';
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} else {
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*buffer = 'D';
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}
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} else if (layer & mask) {
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*buffer = '1';
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} else {
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*buffer = '0';
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}
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++buffer;
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if (i==3 || i==7 || i==11) {
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*buffer = ' ';
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++buffer;
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}
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}
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*buffer = 0;
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}
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bool keyframe_display_layer_bitmap(keyframe_animation_t* animation, visualizer_state_t* state) {
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(void)animation;
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const char* layer_help = "1=On D=Default B=Both";
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char layer_buffer[16 + 4]; // 3 spaces and one null terminator
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gdispClear(White);
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gdispDrawString(0, 0, layer_help, state->font_fixed5x8, Black);
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format_layer_bitmap_string(state->status.default_layer, state->status.layer, layer_buffer);
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gdispDrawString(0, 10, layer_buffer, state->font_fixed5x8, Black);
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format_layer_bitmap_string(state->status.default_layer >> 16, state->status.layer >> 16, layer_buffer);
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gdispDrawString(0, 20, layer_buffer, state->font_fixed5x8, Black);
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gdispFlush();
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return false;
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}
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#endif // LCD_ENABLE
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bool user_visualizer_inited(keyframe_animation_t* animation, visualizer_state_t* state) {
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(void)animation;
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(void)state;
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dprint("User visualizer inited\n");
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visualizer_enabled = true;
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return false;
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}
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// TODO: Optimize the stack size, this is probably way too big
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static THD_WORKING_AREA(visualizerThreadStack, 1024);
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static THD_FUNCTION(visualizerThread, arg) {
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(void)arg;
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event_listener_t event_listener;
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chEvtRegister(&layer_changed_event, &event_listener, 0);
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visualizer_state_t state = {
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.status = {
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.default_layer = 0xFFFFFFFF,
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.layer = 0xFFFFFFFF,
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.leds = 0xFFFFFFFF,
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},
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.current_lcd_color = 0,
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#ifdef LCD_ENABLE
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.font_fixed5x8 = gdispOpenFont("fixed_5x8"),
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.font_dejavusansbold12 = gdispOpenFont("DejaVuSansBold12")
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#endif
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};
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initialize_user_visualizer(&state);
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state.prev_lcd_color = state.current_lcd_color;
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#ifdef LCD_BACKLIGHT_ENABLE
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lcd_backlight_color(
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LCD_HUE(state.current_lcd_color),
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LCD_SAT(state.current_lcd_color),
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LCD_INT(state.current_lcd_color));
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#endif
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systime_t sleep_time = TIME_INFINITE;
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systime_t current_time = chVTGetSystemTimeX();
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while(true) {
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systime_t new_time = chVTGetSystemTimeX();
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systime_t delta = new_time - current_time;
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current_time = new_time;
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bool enabled = visualizer_enabled;
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if (!same_status(&state.status, ¤t_status)) {
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if (visualizer_enabled) {
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state.status = current_status;
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update_user_visualizer_state(&state);
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state.prev_lcd_color = state.current_lcd_color;
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}
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}
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sleep_time = TIME_INFINITE;
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for (int i=0;i<MAX_SIMULTANEOUS_ANIMATIONS;i++) {
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if (animations[i]) {
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update_keyframe_animation(animations[i], &state, delta, &sleep_time);
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}
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}
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if (enabled != visualizer_enabled) {
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sleep_time = 0;
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}
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systime_t after_update = chVTGetSystemTimeX();
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unsigned update_delta = after_update - current_time;
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if (sleep_time != TIME_INFINITE) {
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if (sleep_time > update_delta) {
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sleep_time -= update_delta;
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}
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else {
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sleep_time = 0;
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}
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}
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dprintf("Update took %d, last delta %d, sleep_time %d\n", update_delta, delta, sleep_time);
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chEvtWaitOneTimeout(EVENT_MASK(0), sleep_time);
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}
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#ifdef LCD_ENABLE
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gdispCloseFont(state.font_fixed5x8);
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gdispCloseFont(state.font_dejavusansbold12);
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#endif
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}
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void visualizer_init(void) {
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// We are using a low priority thread, the idea is to have it run only
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// when the main thread is sleeping during the matrix scanning
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chEvtObjectInit(&layer_changed_event);
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(void)chThdCreateStatic(visualizerThreadStack, sizeof(visualizerThreadStack),
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LOWPRIO, visualizerThread, NULL);
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}
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void visualizer_set_state(uint32_t default_state, uint32_t state, uint32_t leds) {
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// Note that there's a small race condition here, the thread could read
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// a state where one of these are set but not the other. But this should
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// not really matter as it will be fixed during the next loop step.
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// Alternatively a mutex could be used instead of the volatile variables
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bool changed = false;
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visualizer_keyboard_status_t new_status = {
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.layer = state,
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.default_layer = default_state,
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.leds = leds,
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};
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if (!same_status(¤t_status, &new_status)) {
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changed = true;
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}
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current_status = new_status;
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if (changed) {
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chEvtBroadcast(&layer_changed_event);
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}
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}
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