Android: map ALLEGRO_TEMP_PATH to the application cache

[alemart]

In Allegro 5.2.9 for Android, ALLEGRO_TEMP_PATH is a synonym of ALLEGRO_USER_DATA_PATH and of other paths (see the code snippet below). Currently, ALLEGRO_TEMP_PATH is mapped to the app-specific directory for persistent files located in internal storage - it relies on getFilesDir(). On Android, the app's cache directory is meant to be used for temporary storage instead (see docs).

This patch modifies ALLEGRO_TEMP_PATH so that it is mapped to the internal cache. No additional permissions are required.

allegro5/src/android/android_system.c

Lines 565 to 572 in 9ced31b

	case ALLEGRO_TEMP_PATH:
	case ALLEGRO_USER_DATA_PATH:
	case ALLEGRO_USER_HOME_PATH:
	case ALLEGRO_USER_SETTINGS_PATH:
	case ALLEGRO_USER_DOCUMENTS_PATH:
	/* path to sdcard */
	path = al_create_path_for_directory(al_cstr(system_data.data_dir));
	break;

[SiegeLord]

Makes sense, thanks!