Appemting to load a font in android allegro (part 2)

nshade

I can't seem to post in the other thread(timeout) , so I'll try here.

I decided to tackle loading fonts in android allegro as well It's not working

In Android Studio 3 I didn't see an assets folder so I made one.

Now, if I load a font, the application will hang.

Here's my code

#SelectExpand
  1#include <stdio.h>
  2#include <allegro5/allegro.h>
  3#include <allegro5/allegro_android.h>
  4#include <allegro5/allegro_font.h>
  5
  6
  7void goodscreen(void)
  8{
  9    al_clear_to_color(al_map_rgb(0,255,0));
 10    al_flip_display();
 11    while(1);
 12
 13}
 14
 15void badscreen(void)
 16{
 17    al_clear_to_color(al_map_rgb(255,0,0));
 18    al_flip_display();
 19    while(1);
 20}
 21
 22int main(int argc, char **argv){
 23int x;
 24    ALLEGRO_DISPLAY *display = NULL;
 25    ALLEGRO_FONT *vl_font=NULL;
 26    if(!al_init()) {
 27        fprintf(stderr, "failed to initialize allegro!\n");
 28        return -1;
 29    }
 30    al_init_font_addon();
 31    al_android_set_apk_file_interface();
 32    al_android_set_apk_fs_interface();
 33
 34    display = al_create_display(0, 0);
 35    if(!display) {
 36        fprintf(stderr, "failed to create display!\n");
 37        return -1;
 38    }
 39    vl_font = al_load_font("VL-PGothic-Regular.ttf",20,0);
 40    if (vl_font == NULL) {
 41    badscreen();
 42    }
 43    goodscreen();
 44}

I have VL-PGothic-Regular.ttf in my assets folder, but when I run the app I don't get a red or green screen, but a black one and it hangs...

Edgar Reynaldo

nshade said:

 display = al_create_display(0, 0);

What are you trying to do here? You can't set a zero resolution display.

nshade

I borrowing the code from the example at the bottom of liballeg lib for Android here...

https://github.com/liballeg/android

not only that - the example works

Edgar Reynaldo

Setting zero width and height is unprecedented. The manual says absolutely nothing about ever doing that. I see the example does do that though, and if you say it works, fine.

Elias, that really needs to be documented.

By the way, you're not calling al_init_ttf_addon.

nshade

GRRR! I forgot the ttf header. It's tricky as phone development makes you lose the printf() debug console!

Now to figure out how to lock the screen in landscape!

Edgar Reynaldo

I mean, I understand setting zero width and height if you're creating a fullscreen window, as the width and height are automatic. But you never set the new display flags, so I don't know why it would default to that. I thought default was windowed mode.

nshade said:

GRRR! I forgot the ttf header. It's tricky as phone development makes you lose the printf() debug console!

Use logcat instead. It will log to the android console.

Ian Lewis

nshade said:

Now to figure out how to lock the screen in landscape!

According to some notes I made a while back:

to force landscape add:

in AndroidManifest.xml, inside <activity>

android:configChanges="orientation|screenSize"
android:screenOrientation="landscape"

AND before you create the display, call:

    al_set_new_display_option(ALLEGRO_SUPPORTED_ORIENTATIONS,ALLEGRO_DISPLAY_ORIENTATION_LANDSCAPE,ALLEGRO_REQUIRE);

Elias

Edgar Reynaldo said:

Elias, that really needs to be documented.

Well, those phones only support FULLSCREEN_WINDOW mode, so technically we could either make al_create_display fail if anything else is requested or fail if width/height are anything but 0 - but instead I think we just completely ignore them.

Edgar Reynaldo

A simple note in the docs would be good enough, as long as it states the parameters passed to al_create_display will be ignored when creating a full screen window edit, and that full screen windows are the default.

It just struck me dumb that it worked.

Thread #617584. Printed from Allegro.cc