Re: Assertion failes in w32uniscribe.c

[Jason Rumney <jasonr@gnu.org>]

Juanma Barranquero wrote:
> On Sun, Apr 6, 2008 at 3:42 PM, Jason Rumney <jasonr@gnu.org> wrote:
>
>   
>>  C-v in a buffer viewing etc/NEWS is near instantaneous for me, so I think
>> you'll need to debug why it is taking so long on your machine.
>>     
>
> I'm not talking about C-v. I'm talking about scrolling one line at a time.
>
> I use this in my .emacs
>
> (setq scroll-preserve-screen-position 'always
>       scroll-conservatively most-positive-fixnum
>       scroll-step 0)
>
> because I *hate* recentering during scroll.
>
> If you try the above setup with and without the new backend, you'll
> see the difference, I think.
>   

I don't see a significant difference, certainly nothing to justify 
language like "unusable" and "unbearable" that has been used on this 
thread. Both recenter occasionally when the redisplay cannot keep up 
with key repeat, with the new font  backend it may happen more 
frequently, but that is not surprising for new development code that has 
not yet settled down, so noone has tried to optimize it yet.