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qmk_firmware/keyboards/gopolar/gg86/lib/wave.h
Jeff Epler 9632360caa
Use a macro to compute the size of arrays at compile time (#18044)
* Add ARRAY_SIZE and CEILING utility macros

* Apply a coccinelle patch to use ARRAY_SIZE

* fix up some straggling items

* Fix 'make test:secure'

* Enhance ARRAY_SIZE macro to reject acting on pointers

The previous definition would not produce a diagnostic for
```
int *p;
size_t num_elem = ARRAY_SIZE(p)
```
but the new one will.

* explicitly get definition of ARRAY_SIZE

* Convert to ARRAY_SIZE when const is involved

The following spatch finds additional instances where the array is
const and the division is by the size of the type, not the size of
the first element:
```
@ rule5a using "empty.iso" @
type T;
const T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)

@ rule6a using "empty.iso" @
type T;
const T[] E;
@@

- sizeof(E)/sizeof(T)
+ ARRAY_SIZE(E)
```

* New instances of ARRAY_SIZE added since initial spatch run

* Use `ARRAY_SIZE` in docs (found by grep)

* Manually use ARRAY_SIZE

hs_set is expected to be the same size as uint16_t, though it's made
of two 8-bit integers

* Just like char, sizeof(uint8_t) is guaranteed to be 1

This is at least true on any plausible system where qmk is actually used.

Per my understanding it's universally true, assuming that uint8_t exists:
https://stackoverflow.com/questions/48655310/can-i-assume-that-sizeofuint8-t-1

* Run qmk-format on core C files touched in this branch

Co-authored-by: Stefan Kerkmann <karlk90@pm.me>
2022-08-30 10:20:04 +02:00

131 lines
4.8 KiB
C

/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
* Copyright 2021 Gopolar
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
extern const unsigned char font[] PROGMEM;
#define ROW_1 OLED_DISPLAY_WIDTH
#define ROW_2 (OLED_DISPLAY_WIDTH * 2)
static uint32_t wave_sleep = 0;
#define FRAME_TIMEOUT (1000/28)
static uint16_t wave_timer = 0;
static uint8_t next_bar_val = 0;
static uint8_t next_log_byte[OLED_FONT_WIDTH] = {0};
static uint8_t line1[OLED_DISPLAY_WIDTH] = {0};
static uint8_t line2[OLED_DISPLAY_WIDTH] = {0};
static const uint8_t PROGMEM bar_lut[8] = {0, 16, 24, 56, 60, 124, 126, 255};
#define BAR_KEY_WEIGHT 128
#define BAR_KEY_DECAY_MAX 18
static uint8_t bar_key_decay = BAR_KEY_DECAY_MAX;
// clang-format off
static const char PROGMEM code_to_name[0xFF] = {
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
' ', ' ', ' ', ' ', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', // 0x
'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '1', '2', // 1x
'3', '4', '5', '6', '7', '8', '9', '0', 128, 136, 132, 131, 22, '-', '=', '[', // 2x
']','\\', '#', ';','\'', '`', ',', '.', '/', 130, 7, 7, 7, 7, 7, 7, // 3x
7, 7, 7, 7, 7, 7, 137, 138, 139, 140, 141, 30, 143, 142, 31, 26, // 4x
27, 25, 24, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 5x
' ', ' ', ' ', ' ','\\', 135, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 6x
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 7x
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 8x
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // 9x
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Ax
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Bx
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Cx
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Dx
15, 129, 133, 4, 15, 129, 133, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', // Ex
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' // Fx
};
// clang-format on
void add_keylog(uint16_t keycode) {
if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) ||
(keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX) ||
(keycode >= QK_MODS && keycode <= QK_MODS_MAX)) {
keycode = keycode & 0xFF;
} else if (keycode > 0xFF) {
keycode = 0;
}
if (keycode < ARRAY_SIZE(code_to_name)) {
char log_char = pgm_read_byte(&code_to_name[keycode]);
for (uint8_t j = 0; j < OLED_FONT_WIDTH; j++) {
const uint8_t glyph_line = pgm_read_byte(&font[log_char * OLED_FONT_WIDTH + j]);
next_log_byte[j] = glyph_line;
}
}
}
bool process_record_user_oled(uint16_t keycode, keyrecord_t *record) {
if (record->event.pressed) {
wave_sleep = timer_read32();
add_keylog(keycode);
uint8_t t = next_bar_val + BAR_KEY_WEIGHT;
if (t < next_bar_val) {
next_bar_val = 255;
} else {
next_bar_val = t;
}
bar_key_decay = BAR_KEY_DECAY_MAX;
}
return true;
}
void render_frame(void) {
// rotate line 1, and stick in the next byte of the next char,
// then rotate the next char buffer
memmove(line1+1, line1, OLED_DISPLAY_WIDTH - 1);
line1[0] = next_log_byte[OLED_FONT_WIDTH - 1];
memmove(next_log_byte+1, next_log_byte, OLED_FONT_WIDTH - 1);
next_log_byte[0] = 0;
// rotate line 2, sticking in the next display value
uint8_t disp_val = pgm_read_byte(&bar_lut[next_bar_val / 32]);
memmove(line2+1, line2, OLED_DISPLAY_WIDTH - 1);
line2[0] = disp_val;
// draw both bars
for (uint8_t i = 0; i < OLED_DISPLAY_WIDTH; i++) {
oled_write_raw_byte(line1[i], ROW_1 + i);
oled_write_raw_byte(line2[i], ROW_2 + i);
}
// decay the next bar value
if (next_bar_val > bar_key_decay) {
next_bar_val -= bar_key_decay;
} else {
next_bar_val = 0;
}
if (bar_key_decay > 1) {
bar_key_decay -= 1;
}
}