exaccel - Using offscreen video memory to store source graphics for VBE/AF. Allegro game programming

       This program demonstrates how to use an offscreen part of the video memory to store source graphics for a
       hardware accelerated graphics driver. The example loads the `mysha.pcx' file and then  blits  it  several
       times  on the screen. Depending on whether you have enough video memory and Allegro supports the hardware
       acceleration features of your card, your success running this  example  may  be  none  at  all,  sluggish
       performance due to software emulation, or flicker free smooth hardware accelerated animation.

       exaccel  -  Using  offscreen  video  memory to store source graphics for VBE/AF. Allegro game programming
       library.

BITMAP(3alleg4),    END_OF_MAIN(3alleg4),    PALETTE(3alleg4),    SCREEN_H(3alleg4),   SCREEN_W(3alleg4),
       acquire_bitmap(3alleg4),   allegro_error(3alleg4),    allegro_init(3alleg4),    allegro_message(3alleg4),
       blit(3alleg4),      clear_bitmap(3alleg4),     create_video_bitmap(3alleg4),     destroy_bitmap(3alleg4),
       font(3alleg4),     gfx_capabilities(3alleg4),     install_keyboard(3alleg4),      install_timer(3alleg4),
       keypressed(3alleg4),        load_bitmap(3alleg4),        readkey(3alleg4),       release_bitmap(3alleg4),
       replace_filename(3alleg4),      screen(3alleg4),       set_gfx_mode(3alleg4),       set_palette(3alleg4),
       show_video_bitmap(3alleg4), textout_ex(3alleg4), textprintf_ex(3alleg4)

Allegro                                           version 4.4.3                                 exaccel(3alleg4)

#include<allegro.h>Exampleexaccel