On Fri, 07 May 2010 22:32:11 +0200 Michael wrote:
> I noticed the same issue on two i386 systems, a similar amd64 system shows
> no problems.
>
> I pinpointed it down to file PDFCore.cc line 450 ff.:
>
> // if the display properties have changed, create a new PDFCorePage
> // object
> if (force || pages->getLength() == 0 ||
> (!continuousMode && topPageA != topPage) ||
> zoomA != zoom || dpiA != dpi || rotateA != rotate) {
>
> The condition seems to be "true" all the time, even though every single
> part of it (force, pages->getLength() == 0, ...) is "false" during
> scolling. As a consequence, cached pages are always thrown away before
> they can be reused to speed up scrolling.
>
> To me it looks like a bug in g++ 4.4, too. (g++-4.4 (Debian 4.4.2-9) 4.4.3
> 20100108 (prerelease))
awesome. thanks for tracking this down. i'll submit a gcc bug when i
have a chance. in the meantime, i have built and tested a version using
gcc/g++ 4.3, and scrolling seems fine on i386.
mike
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