[Scribus] memory issues using images

architetto francesco fantoni <hva - hermanitos verdes architetti> francesco
Sat Nov 11 11:54:30 CET 2006

thanks for your kind answer, it look more or less clear now.
I hope progressive reading development goes on and issue can be solved.
good work.
best regards, francesco

Il giorno sab, 11/11/2006 alle 13.04 +0800, Craig Ringer ha scritto:
> francesco fantoni wrote:
> > It seems there is a serious memory problem with large images or huge
> > number of images in Scribus documents using 1.3.
> >>From what i understand reading bug reports it seems it could be related
> > to use of Qstring for storing images.
> Partly, but not entirely. That's part of it, as it doubles or quadruples
> the in-memory size of the decompressed image. However, Scribus also load
> sall images into RAM, filters them into another buffer, and then writes
> that out, so you'll end up with more than just the source image in RAM.
> Suddenly 2GB of RAM doesn't look like so much anymore ;-)
> The goal is to progressively read, filter, and write images to the PDF
> so that the whole image need not be kept in RAM at once (let alone two
> or three decompressed copies of it as now!). And, of course, not to use
> QStrings inappropriately.
> > I'm having serious troubles with both 1.3.3.x and 1.3.4cvs, that turn
> > out to be practically useless for producing a document with a large
> > number of images. Someone stated in a bug-report that use of Qstring for
> > images will be abandoned in 1.4, is it true?
> Yes, as above.
> > is there already a clear vision of problem and possible solutions?
> Yes.
> There was some progress with progressive image reading in 1.3.4.
> --
> Craig Ringer
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