Re: font-backend mechanism on Windows and Mac?

[Jason Rumney]

YAMAMOTO Mitsuharu wrote:
> Even with backing store, calls to drawRect:, which corresponds to the
> handler for expose events, occur when dragging the resize handle or
> just before the animation for deiconifying.  I can observe whiteout
> during such operations on the Cocoa port, but not on the Carbon+AppKit
> port where the method is implemented as follows:
>   
This whiteout may be due to the performance problems I observed in the
new font backend, rather than the differences in implementation of
drawRect between Carbon and Cocoa ports. Or has the Carbon port been
updated to use the font backend as well?