Builtin font doesn't work in resizeable display on windows

Builtin font doesn't work in resizeable display on windows

Kznarsk

Member #19,179

February 2021

Hello everyone,

I have a simple program that displays the text "hey" in a window.

#SelectExpand
  1#include <allegro5/allegro5.h>
  2#include <allegro5/allegro_font.h>
  3#include <stdio.h>
  4
  5void must_init(_Bool test, const char *description)
  6{
  7    if(test) return;
  8
  9    fprintf(stderr,"couldn't initialize %s\n", description);
 10    exit(1);
 11}
 12
 13void main(){
 14  must_init(al_init(), "allegro");
 15  must_init(al_init_font_addon(), "fonts");
 16  ALLEGRO_DISPLAY* disp = al_create_display(500, 500);
 17  must_init(disp, "display");
 18
 19  ALLEGRO_EVENT event;
 20  ALLEGRO_EVENT_QUEUE *queue =al_create_event_queue();
 21  must_init(queue, "queue");
 22      al_register_event_source(queue, al_get_display_event_source(disp));
 23
 24  ALLEGRO_FONT* font = al_create_builtin_font();
 25  must_init(font, "builitin font");
 26
 27  while(true){
 28    al_clear_to_color(al_map_rgb(0,0,0));
 29    al_draw_text(font, al_map_rgb(255,255,255), 0,0,0, "hey");
 30    al_flip_display();
 31    if(event.type == ALLEGRO_EVENT_DISPLAY_CLOSE){
 32      return;
 33    }
 34    al_wait_for_event(queue, &event);
 35    
 36  }
 37}

Then I wanted to improve this program by making the window resizeable:

#SelectExpand
  1#include <allegro5/allegro5.h>
  2#include <allegro5/allegro_font.h>
  3#include <stdio.h>
  4
  5void must_init(_Bool test, const char *description)
  6{
  7    if(test) return;
  8
  9    fprintf(stderr,"couldn't initialize %s\n", description);
 10    exit(1);
 11}
 12
 13void main(){
 14  must_init(al_init(), "allegro");
 15  must_init(al_init_font_addon(), "fonts");
 16  al_set_new_display_flags(ALLEGRO_RESIZABLE|ALLEGRO_WINDOWED);
 17  ALLEGRO_DISPLAY* disp = al_create_display(500, 500);
 18  must_init(disp, "display");
 19
 20  ALLEGRO_EVENT event;
 21  ALLEGRO_EVENT_QUEUE *queue =al_create_event_queue();
 22  must_init(queue, "queue");
 23      al_register_event_source(queue, al_get_display_event_source(disp));
 24
 25  ALLEGRO_FONT* font = al_create_builtin_font();
 26  must_init(font, "builitin font");
 27
 28  while(true){
 29    al_acknowledge_resize(disp);
 30    al_clear_to_color(al_map_rgb(0,0,0));
 31    al_draw_text(font, al_map_rgb(255,255,255), 0,0,0, "hey");
 32    al_flip_display();
 33    if(event.type == ALLEGRO_EVENT_DISPLAY_CLOSE){
 34      return;
 35    }
 36    al_wait_for_event(queue, &event);
 37    
 38  }
 39}