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// Copyright 2022 Arturo Avila (@ADPenrose)
// SPDX-License-Identifier: GPL-2.0-or-later
#include QMK_KEYBOARD_H
#include "animation_frames.h"
#ifdef OLED_ENABLE
#define IDLE_FRAME_DURATION 200 // Idle animation iteration rate in ms
oled_rotation_t oled_init_user(oled_rotation_t rotation) { return OLED_ROTATION_270; }
uint32_t anim_timer = 0;
uint32_t anim_sleep = 0;
uint8_t current_idle_frame = 0;
bool tap_anim = false;
bool tap_anim_toggle = false;
// Decompress and write a precompressed bitmap frame to the OLED.
// Documentation and python compression script available at:
// https://github.com/nullbitsco/squeez-o
#ifdef USE_OLED_BITMAP_COMPRESSION
static void oled_write_compressed_P(const char* input_block_map, const char* input_block_list) {
uint16_t block_index = 0;
for (uint16_t i=0; i<NUM_OLED_BYTES; i++) {
uint8_t bit = i%8;
uint8_t map_index = i/8;
uint8_t _block_map = (uint8_t)pgm_read_byte_near(input_block_map + map_index);
uint8_t nonzero_byte = (_block_map & (1 << bit));
if (nonzero_byte) {
const char data = (const char)pgm_read_byte_near(input_block_list + block_index++);
oled_write_raw_byte(data, i);
} else {
const char data = (const char)0x00;
oled_write_raw_byte(data, i);
}
}
}
#endif
static void render_anim(void) {
// Idle animation
void animation_phase(void) {
if (!tap_anim) {
current_idle_frame = (current_idle_frame + 1) % NUM_IDLE_FRAMES;
uint8_t idx = abs((NUM_IDLE_FRAMES - 1) - current_idle_frame);
#ifdef USE_OLED_BITMAP_COMPRESSION
oled_write_compressed_P(idle_block_map[idx], idle_frames[idx]);
#else
oled_write_raw_P(idle_frames[idx], NUM_OLED_BYTES);
#endif
}
}
// Idle behaviour
if (get_current_wpm() != 000) { // prevent sleep
oled_on();
if (timer_elapsed32(anim_timer) > IDLE_FRAME_DURATION) {
anim_timer = timer_read32();
animation_phase();
}
anim_sleep = timer_read32();
} else { // Turn off screen when timer threshold elapsed or reset time since last input
if (timer_elapsed32(anim_sleep) > OLED_TIMEOUT) {
oled_off();
} else {
if (timer_elapsed32(anim_timer) > IDLE_FRAME_DURATION) {
anim_timer = timer_read32();
animation_phase();
}
}
}
}
#endif
// Animate tap
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
#ifdef OLED_ENABLE
// Check if non-mod
if ((keycode >= KC_TAB && keycode <= KC_SLASH) || // Tab - Slash (Symbols, Punctuation, Space)
(keycode >= KC_KP_SLASH && keycode <= KC_KP_COMMA) || // Keypad slash - Keypad Dot
(keycode >= KC_F1 && keycode <= KC_F12)) { // F1 - F12
if (record->event.pressed) {
// Display tap frames
tap_anim_toggle = !tap_anim_toggle;
#ifdef USE_OLED_BITMAP_COMPRESSION
oled_write_compressed_P(tap_block_map[tap_anim_toggle], tap_frames[tap_anim_toggle]);
#else
oled_write_raw_P(tap_frames[tap_anim_toggle], NUM_OLED_BYTES);
#endif
}
}
#endif
return true;
}
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