134 lines
4.9 KiB
C
134 lines
4.9 KiB
C
/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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extern const unsigned char font[] PROGMEM;
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#define ROW_1 OLED_DISPLAY_WIDTH
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#define ROW_2 (OLED_DISPLAY_WIDTH * 2)
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static uint32_t wave_sleep = 0;
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#define FRAME_TIMEOUT (1000/24)
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static uint16_t wave_timer = 0;
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static uint8_t next_bar_val = 0;
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static uint8_t next_log_byte[OLED_FONT_WIDTH] = {0};
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static uint8_t line1[OLED_DISPLAY_WIDTH] = {0};
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static uint8_t line2[OLED_DISPLAY_WIDTH] = {0};
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static const uint8_t PROGMEM bar_lut[8] = {0, 16, 24, 56, 60, 124, 126, 255};
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#define BAR_KEY_WEIGHT 128
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#define BAR_KEY_DECAY_MAX 18
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static uint8_t bar_key_decay = BAR_KEY_DECAY_MAX;
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// clang-format off
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static const char PROGMEM code_to_name[0xFF] = {
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// 0 1 2 3 4 5 6 7 8 9 A B C D E F
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' ', ' ', ' ', ' ', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', // 0x
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'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '1', '2', // 1x
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'3', '4', '5', '6', '7', '8', '9', '0', 128, 136, 132, 131, 22, '-', '=', '[', // 2x
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']','\\', '#', ';','\'', '`', ',', '.', '/', 130, 7, 7, 7, 7, 7, 7, // 3x
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7, 7, 7, 7, 7, 7, 137, 138, 139, 140, 141, 30, 143, 142, 31, 26, // 4x
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27, 25, 24, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 5x
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' ', ' ', ' ', ' ', ' ', 135, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 6x
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 7x
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 8x
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 9x
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Ax
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Bx
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Cx
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Dx
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15, 129, 133, 4, 15, 129, 133, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Ex
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' // Fx
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};
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// clang-format on
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void add_keylog(uint16_t keycode) {
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if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) ||
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(keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX) ||
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(keycode >= QK_MODS && keycode <= QK_MODS_MAX)) {
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keycode = keycode & 0xFF;
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} else if (keycode > 0xFF) {
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keycode = 0;
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}
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if (keycode < (sizeof(code_to_name) / sizeof(char))) {
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char log_char = pgm_read_byte(&code_to_name[keycode]);
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for (uint8_t j = 0; j < OLED_FONT_WIDTH; j++) {
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const uint8_t glyph_line = pgm_read_byte(&font[log_char * OLED_FONT_WIDTH + j]);
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next_log_byte[j] = glyph_line;
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}
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}
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}
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bool process_record_user_oled(uint16_t keycode, keyrecord_t *record) {
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if (record->event.pressed) {
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wave_sleep = timer_read32();
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add_keylog(keycode);
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uint8_t t = next_bar_val + BAR_KEY_WEIGHT;
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if (t < next_bar_val) {
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next_bar_val = 255;
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} else {
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next_bar_val = t;
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}
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bar_key_decay = BAR_KEY_DECAY_MAX;
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}
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return true;
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}
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void render_layer_name(void) {
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oled_write_P(PSTR("LAYER: WAVE"), false);
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}
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void render_frame(void) {
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// rotate line 1, and stick in the next byte of the next char,
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// then rotate the next char buffer
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memmove(line1+1, line1, OLED_DISPLAY_WIDTH - 1);
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line1[0] = next_log_byte[OLED_FONT_WIDTH - 1];
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memmove(next_log_byte+1, next_log_byte, OLED_FONT_WIDTH - 1);
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next_log_byte[0] = 0;
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// rotate line 2, sticking in the next display value
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uint8_t disp_val = pgm_read_byte(&bar_lut[next_bar_val / 32]);
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memmove(line2+1, line2, OLED_DISPLAY_WIDTH - 1);
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line2[0] = disp_val;
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// draw both bars
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for (uint8_t i = 0; i < OLED_DISPLAY_WIDTH; i++) {
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oled_write_raw_byte(line1[i], ROW_1 + i);
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oled_write_raw_byte(line2[i], ROW_2 + i);
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}
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// decay the next bar value
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if (next_bar_val > bar_key_decay) {
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next_bar_val -= bar_key_decay;
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} else {
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next_bar_val = 0;
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}
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if (bar_key_decay > 1) {
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bar_key_decay -= 1;
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}
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}
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