Re: [pygame] Sync with vertical refresh does not work(?)

[René Dudfield <renesd@xxxxxxxxx>]

hi,

I think this is a driver option like was mentioned.  What video
card/driver do you have?

cu,



On Sun, Feb 1, 2009 at 12:19 PM, Matthias Treder
<matthias4all@xxxxxxxxxxxxxx> wrote:
> Good idea, indeed my driver was "windib" ("windb" in the FAQ seems to
> be a typo) not "directx". However, with directx, the tearing remains.
> Again I tried any combination (fullscreen/windowed, hw/sw surface, and
> doublebuf). BTW, the directx driver seems to not work properly with de
> DOUBLEBUF flag when in fullscreen mode, objects are only partially
> displayed and there's no flashes.
>
> I also reduced my code to be as minimal as possible:
> (don't care for the opts variable, I tried the other variants as well)
>
> os.environ['SDL_VIDEODRIVER'] = 'directx'
> pygame.init()
> opts = pygame.SWSURFACE
> screen = pygame.display.set_mode((800,800),opts)
> image = pygame.Surface( (200,200) )
> rect = image.get_rect(center=(200,180))
> pygame.draw.rect(image,(255,255,255),rect)
>
> while 1:
>    for event in pygame.event.get():
>        if event.type == pygame.QUIT: sys.exit()
>    screen.fill( (0,0,0) )
>    pygame.display.flip()
>    pygame.time.delay(300)
>    screen.blit(image, rect)
>    pygame.display.flip()
>    pygame.time.delay(300)
>
> 2009/1/30 Lenard Lindstrom <len-l@xxxxxxxxx>:
>> One other thing to try is switch graphics drivers. By default Pygame should
>> use DirectX for Windows XP. It's easy to check with the
>> pygame.display.get_driver() function. When called after pygame.init() it
>> will either return 'directx' or 'windb' for Windows. To select the other
>> driver set the SDL_VIDEODRIVER environment variable before the pygame.init()
>> call. It is explained, along with a code example, at the Pygame FAQ:
>>
>> http://www.pygame.org/wiki/FrequentlyAskedQuestions
>>
>> Lenard
>>
>> Matthias Treder wrote:
>>>
>>> I tried out changing the graphics settings, but they had no effect.
>>> The tearing occurs both in fullscreen and windowed mode, btw.
>>>
>>>
>>
>>
>> --
>> Lenard Lindstrom
>> <len-l@xxxxxxxxx>
>>
>>
>