[Okular-devel] [Bug 209592] Some random ideas for smoother, faster rendering

[Pino Toscano]

https://bugs.kde.org/show_bug.cgi?id=209592





--- Comment #9 from Pino Toscano <pino kde org>  2009-10-06 16:52:52 ---
What happens when rendering is the following: a new pixmap is asked for being
rendered, and when ready replaces the old one [for a specified observer].
It -may- happen that, due to the memory usage, some other pixmap of the
requested page (be it for the same observer or another) is removed, thus
leaving no other pixmap for a page.
This means that when rendering a page, any other available pixmap for the same
page _is_ actually used.
Regarding the white page at higher zoom, this can have two main causes:
a) what I said above (ie previous pixmap being removed for memory constraint)
b) a page pixmap too big (you see that by reading the debug output, only the
first time); in that case, only a planned tiled rendering could fix this issue.

(Also, why is such discussion being done on bugzilla, and not in ML?)

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