Re: [pygame] best modality

[Pete Shinners <pete@shinners.org>]

azazel wrote:
> pygame.display.set_mode((640, 480), pygame.HWSURFACE |
> pygame.DOUBLEBUF) | pygame.FULLSCREEN)
>
> my game run slower than setting display mode without
> using fullscreen? I have always thought that
> fullscreen modality was faster that open display in a
> window, but...also I've noticed that setting my
> monitor to a lower pixel depth, my fps become better,
> why? How can I find the best video modality to use to
> have best fps?
"best display mode" is probably a better translation. every operating 
system seems to work a little differently in how the display runs. using 
a 16bit display mode will be faster than a full 32bit mode, but not all 
systems can switch to either mode if they need to. this the code should 
pretty generically get you the best display mode. (note that DOULEBUF 
implies HWSURFACE, so no need for both)

resolution = 640, 480
flags = pygame.DOUBLEBUF|pygame.FULLSCREEN
best_depth = pygame.display.mode_ok(resolution, flags, 16)
if not best_depth:
    #we can't get this type of screen, fallback to software flags
    flags = pygame.FULLSCREEN
    best_depth = pygame.display.mode_ok(resolution, flags, 16)
if not best_depth:
    #wow, we really can't get much, let's just beg sdl to do what it can
    flags = 0
window = pygame.display.set_mode(resolution, flags, best_depth)

#once that is done we can check if we really got all the flags we asked
print "display depth", window.get_bitsize()
if window.get_flags() & pygame.FULLSCREEN:
    print "fullscreen display"
if window.get_flags() & pygame.HWSURFACE:
    print "hardware accelerated display"