Re: redundant redisplay

[Tak Ota]

29 Apr 2004 01:06:11 +0200: address@hidden (Kim F. Storm) wrote:

> Tak Ota <address@hidden> writes:
> 
> > Some recent change, which I cannot identify, affects the redisplay
> > mechanism so that set-buffer-modified-p redisplays window contents
> > redundantly.  It creates occasional annoying partial screen flashing
> > as well as considerably slows down a buffer process which updates
> > modeline frequently.
> 
> I found a problem with the image slicing patch (missing initialization
> of slice info for non-image glyphs), which could very well cause
> unnecessary redisplay.
> 
> I have just installed a fix, please see if it helps.

2004-04-29  Kim F. Storm  <address@hidden>

        * xdisp.c (null_glyph_slice): New var.
        (append_glyph, append_composite_glyph, append_stretch_glyph):
        Use it to initialize glyph slice.

Yes, this does eliminate the redundant redisplay problem.  Thank you.

-Tak