156 lines
5.4 KiB
C
156 lines
5.4 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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#ifndef VISUALIZER_H
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#define VISUALIZER_H
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "config.h"
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#include "gfx.h"
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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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#ifdef BACKLIGHT_ENABLE
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#include "backlight.h"
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#endif
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// use this function to merge both real_mods and oneshot_mods in a uint16_t
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uint8_t visualizer_get_mods(void);
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// This need to be called once at the start
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void visualizer_init(void);
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// This should be called at every matrix scan
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void visualizer_update(uint32_t default_state, uint32_t state, uint8_t mods, uint32_t leds);
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// This should be called when the keyboard goes to suspend state
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void visualizer_suspend(void);
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// This should be called when the keyboard wakes up from suspend state
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void visualizer_resume(void);
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// These functions are week, so they can be overridden by the keyboard
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// if needed
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GDisplay* get_lcd_display(void);
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GDisplay* get_led_display(void);
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// For emulator builds, this function need to be implemented
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#ifdef EMULATOR
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void draw_emulator(void);
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#endif
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// If you need support for more than 16 keyframes per animation, you can change this
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#define MAX_VISUALIZER_KEY_FRAMES 16
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struct keyframe_animation_t;
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typedef struct {
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uint32_t layer;
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uint32_t default_layer;
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uint32_t leds; // See led.h for available statuses
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uint8_t mods;
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bool suspended;
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#ifdef BACKLIGHT_ENABLE
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uint8_t backlight_level;
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#endif
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#ifdef VISUALIZER_USER_DATA_SIZE
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uint8_t user_data[VISUALIZER_USER_DATA_SIZE];
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#endif
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} visualizer_keyboard_status_t;
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// The state struct is used by the various keyframe functions
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// It's also used for setting the LCD color and layer text
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// from the user customized code
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typedef struct visualizer_state_t {
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// The user code should primarily be modifying these
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uint32_t target_lcd_color;
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const char* layer_text;
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// The user visualizer(and animation functions) can read these
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visualizer_keyboard_status_t status;
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// These are used by the animation functions
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uint32_t current_lcd_color;
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uint32_t prev_lcd_color;
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#ifdef LCD_ENABLE
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font_t font_fixed5x8;
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font_t font_dejavusansbold12;
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#endif
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} visualizer_state_t;
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// Any custom keyframe function should have this signature
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// return true to get continuous updates, otherwise you will only get one
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// update per frame
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typedef bool (*frame_func)(struct keyframe_animation_t*, visualizer_state_t*);
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// Represents a keyframe animation, so fields are internal to the system
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// while others are meant to be initialized by the user code
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typedef struct keyframe_animation_t {
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// These should be initialized
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int num_frames;
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bool loop;
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int frame_lengths[MAX_VISUALIZER_KEY_FRAMES];
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frame_func frame_functions[MAX_VISUALIZER_KEY_FRAMES];
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// Used internally by the system, and can also be read by
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// keyframe update functions
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int current_frame;
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int time_left_in_frame;
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bool first_update_of_frame;
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bool last_update_of_frame;
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bool need_update;
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} keyframe_animation_t;
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extern GDisplay* LCD_DISPLAY;
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extern GDisplay* LED_DISPLAY;
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void start_keyframe_animation(keyframe_animation_t* animation);
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void stop_keyframe_animation(keyframe_animation_t* animation);
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// This runs the next keyframe, but does not update the animation state
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// Useful for crossfades for example
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void run_next_keyframe(keyframe_animation_t* animation, visualizer_state_t* state);
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// The master can set userdata which will be transferred to the slave
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#ifdef VISUALIZER_USER_DATA_SIZE
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void visualizer_set_user_data(void* user_data);
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#endif
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// These functions have to be implemented by the user
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// Called regularly each time the state has changed (but not every scan loop)
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void update_user_visualizer_state(visualizer_state_t* state, visualizer_keyboard_status_t* prev_status);
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// Called when the computer goes to suspend, will also stop calling update_user_visualizer_state
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void user_visualizer_suspend(visualizer_state_t* state);
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// You have to start at least one animation as a response to the following two functions
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// When the animation has finished the visualizer will resume normal operation and start calling the
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// update_user_visualizer_state again
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// Called when the keyboard boots up
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void initialize_user_visualizer(visualizer_state_t* state);
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// Called when the computer resumes from a suspend
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void user_visualizer_resume(visualizer_state_t* state);
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#endif /* VISUALIZER_H */
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