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Altera_Forum's avatar
Altera_Forum
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16 years ago

Frame buffer/nano-X speed issues.

Hi, until now we have been ignoring the fact that the video update rate using the frame buffer wiki and a neek is slow. Has anyone looked into this enough to figure out where the bottleneck is? Has...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

NIOS is not a really fast processor. Without hardware acceleration X-like stuff many things can't perform too well, as the processor needs to create any single pixel on the screen, including hiding and redisplaying stuff that is hidden behind other objects, filling complex polygons for TTF types etc.

Any PC uses hardware acceleration for any type of X display, as even the PC processor is slow with low level pixel operations.

-Michael