| From: | neil |
| Date: | 8 May 2001 at 19:33:06 |
| Subject: | Re: Screenswapping and burning CD's |
HIhi Neil,
In a message dated 03 May 01 you wrote to All :
>> Something I've always wondered. Do web browsers build up an image of
>> the entire webpage or do they just generate 1 screens worth. Anyone
>> know?
NB> They would have to layout the entire page, otherwise they couldn't allow
NB> for the contents of tables.
This can be calculated in advance.
NB> Scrolling would also be slow if only the displayed portion of the page
NB> was rendered.
It is, relatively, slow. Try a slow 030/AGA machine to see some redraw on page
jumps.. Scrolling looks smooth because sections of the page are rendered in
advance and blitted to the screen.
To hold a large page rendered in memory needs far too much memory. Take a look
at the AIO magazine reader... this renders the whole page to memory at once
and can eat some big chunks of RAM for large articles on 24bit displays
(something I'm supposed to be working on fixing).
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