Scrolling in framebuffer syscons

[Adrian Chadd]

On 24 February 2013 03:11, Phileas Fogg <phileas-fogg at mail.ru> wrote:
> Julian Elischer wrote:
>
>>
>> not sure if it's relevent, but remember that updating the screen mor ethan
>> 50
>> times a second is pointless.
>> I'm not sure if the curent video console does it but having the final copy
>> only
>> done on 50Hz ticks can save a lot of copying.
>>
>
> Right, but then you have to handle VSYNC hardware interrupts and copy
> framebuffer data from system memory to video memory.

Which you likely should do anyway, right? if you're going to be doing
any kind of large-scale screen updating.



Adrian




Adrian