qmk_firmware/users/xulkal/custom_oled.c

#include "custom_oled.h"
#include "process_records.h"

#include <stdio.h>

#ifdef OLED_DRIVER_ENABLE

static void render_logo(void)
{
    static const char PROGMEM sol_logo[] = {
        0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,
        0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,
        0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,0};
    oled_write_P(sol_logo, false);
}

static void render_status(void)
{
    // Render to mode icon
    static const char PROGMEM mode_logo[2][3] = {
        {0x97,0x98,0},
        {0xb7,0xb8,0}
    };

    oled_write_P(mode_logo[0], false);

#if defined(RGB_MATRIX_ENABLE)
    static char buffer[20] = {0};
    snprintf(buffer, sizeof(buffer), "    h%3d s%3d v%3d\n", rgb_matrix_config.hue, rgb_matrix_config.sat, rgb_matrix_config.val);
    oled_write(buffer, false);
#endif

    oled_write_P(mode_logo[1], false);

#if defined(RGB_MATRIX_ENABLE)
    snprintf(buffer, sizeof(buffer), "         s%3d m%3d\n", rgb_matrix_config.speed, rgb_matrix_config.mode);
    oled_write(buffer, false);
#endif

    // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
    oled_write_P(PSTR("Layer: "), false);
    switch (biton32(layer_state))
    {
        case _QWERTY:
#ifndef GAMELAYER_DISABLE
            switch (biton32(default_layer_state))
            {
                case _QWERTY:
                    oled_write_P(PSTR("Default\n"), false);
                    break;
                case _GAME:
                    oled_write_P(PSTR("Game\n"), false);
                    break;
                default:
                    oled_write_P(PSTR("Undefined\n"), false);
                    break;
            }
#else
            oled_write_P(PSTR("Default\n"), false);
#endif
            break;
        case _LOWER:
            oled_write_P(PSTR("Lower\n"), false);
            break;
        case _RAISE:
            oled_write_P(PSTR("Raise\n"), false);
            break;
#ifdef TRILAYER_ENABLED
        case _ADJUST:
            oled_write_P(PSTR("Adjust\n"), false);
            break;
#endif
        default:
            oled_write_P(PSTR("Undefined\n"), false);
            break;
  }

  // Host Keyboard LED Status
    uint8_t led_usb_state = host_keyboard_leds();
    oled_write_P(led_usb_state & (1<<USB_LED_NUM_LOCK) ? PSTR("NUMLCK ") : PSTR("       "), false);
    oled_write_P(led_usb_state & (1<<USB_LED_CAPS_LOCK) ? PSTR("CAPLCK ") : PSTR("       "), false);
    oled_write_P(led_usb_state & (1<<USB_LED_SCROLL_LOCK) ? PSTR("SCRLCK ") : PSTR("       "), false);
}

void oled_task_user(void)
{
    if (is_keyboard_master())
        render_status();
    else
    {
        render_logo();
        oled_scroll_left();
    }
}

#endif