[RFI]Mac performance gap between OS-9 and OSX

Colin Putney cputney at wiresong.ca
Tue Aug 5 16:40:52 UTC 2003


On Tuesday, August 5, 2003, at 08:13  AM, Karsten Wolf wrote:

> Hi,
>
> has anybody investigated the BitBlt performance difference in 
> line-drawing between OS-9 and OSX?
>
> Any ideas?

Just a wild guess, but it could be because Apple as been optimizing 
CopyBits() in Classic for close to 20 years. That code probably had to 
be rewritten for Quartz.

Colin



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