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fast framebuffer access

Posted on 2006-06-23
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Last Modified: 2011-09-20
Hey folks,

What is the preferred way to quickly read and write to the framebuffer? What I've done is mmap'ing it to a data buffer and then performing operations on potions of it as if it were an array, using memcpy and memcmp. This takes ages though, compared to accessing other parts of memory, which leads me to think that I'm doing it wrong. Any suggestions?

Thanks,
Nathan
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Question by:quadrille01
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manish_regmi earned 2000 total points
ID: 17057454
Have you tried using the device file /dev/fb*

Just use open read and Write.


regards
Manish Regmi
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by:manish_regmi
ID: 17057494
you might find some info for your project here
http://www.linux-fbdev.org/

regards
Manish Regmi
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by:quadrille01
ID: 17058370
Thanks, that was about twice as fast for reading!
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