exupdate
Section: Allegro manual (3)
Updated: version 4.2.2
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NAME
exupdate - Supporting different screen update methods in a single program. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
Example exupdate
DESCRIPTION
This program demonstrates how to support double buffering,
page flipping, and triple buffering as options within a single
program, and how to make things run at a constant rate no
matter what the speed of your computer. You have to use this
example from the command line to specify as first parameter a
number which represents the type of video update you want: 1
for double buffering with memory bitmaps, 2 for page flipping,
3 for triple buffering and 4 for double buffering with system
bitmaps. After this, a dialog allows you to select a screen
resolution and finally you will see a kaleidoscopic animation,
along with a frames per second counter on the top left of
the screen.
SEE ALSO
BITMAP(3),
END_OF_FUNCTION(3),
END_OF_MAIN(3),
LOCK_FUNCTION(3),
LOCK_VARIABLE(3),
PALETTE(3),
SCREEN_H(3),
SCREEN_W(3),
acquire_bitmap(3),
allegro_error(3),
allegro_init(3),
allegro_message(3),
bitmap_color_depth(3),
blit(3),
clear_bitmap(3),
create_bitmap(3),
create_system_bitmap(3),
create_video_bitmap(3),
desktop_palette(3),
destroy_bitmap(3),
enable_triple_buffer(3),
fixcos(3),
fixed(3),
fixmul(3),
fixsin(3),
fixtoi(3),
font(3),
ftofix(3),
generate_332_palette(3),
gfx_capabilities(3),
gfx_mode_select_ex(3),
install_int_ex(3),
install_keyboard(3),
install_mouse(3),
install_timer(3),
keypressed(3),
line(3),
makecol(3),
poll_scroll(3),
release_bitmap(3),
request_video_bitmap(3),
screen(3),
set_color_depth(3),
set_gfx_mode(3),
set_palette(3),
show_video_bitmap(3),
textout_ex(3),
textprintf_ex(3),
triangle(3),
vsync(3),
xor_mode(3)