程式語言 - LVGL - SDL v2.0 - Use Font

參考資訊：
https://docs.lvgl.io/master/
https://github.com/lvgl/lvgl
https://docs.lvgl.io/master/details/integration/driver/sdl.html

main.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
  
#include <SDL2/SDL.h>
 
#include <lvgl.h>
 
static lv_display_t *disp = NULL;
  
int main(int argc, char *argv[])
{
    lv_init();
    disp = lv_sdl_window_create(320, 240);
  
    lv_font_t *font = lv_freetype_font_create("font.ttf", LV_FREETYPE_FONT_RENDER_MODE_BITMAP, 32, LV_FREETYPE_FONT_STYLE_BOLD); 
  
    lv_style_t style;
    lv_style_init(&style);
    lv_style_set_text_font(&style, font);
   
    lv_obj_t *label = lv_label_create(lv_screen_active());
    lv_obj_add_style(label, &style, 0);
    lv_label_set_text(label, "中文字型測試");
  
    lv_timer_handler();
    SDL_Delay(3000);
  
    return 0;
}

編譯、執行

$ gcc main.c -o main -I/usr/include/SDL -I/usr/local/include/lvgl/src -llvgl -lfreetype -lSDL2 -DLV_CONF_SKIP -DLV_USE_FREETYPE -DLV_USE_SDL
$ ./main