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Posted to fop-users@xmlgraphics.apache.org by kennardconsulting <ri...@kennardconsulting.com> on 2009/09/25 06:02:59 UTC
Any way to cache fonts across rendering runs?
Hi guys,
FOP 'best practice' says that I should call FopFactory.newFop at the start
of each render. Internally, however, this creates a new FOTreeBuilder, which
in turn creates a FOEventHandler, which in turn creates a FontInfo, which in
turn has a font cache.
Is there no way to re-use this font cache across multiple rendering runs?
I note in my logs that FOP keeps going looking for various
uppercase/lowercase versions of filenames on the disk...
13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
file:/N:/var/avant-ss/fonts/TheSnB3.AFM
13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
file:/N:/var/avant-ss/fonts/TheSnB3.afm
13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
file:/N:/var/avant-ss/fonts/TheSnB3.Afm
13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
file:/N:/var/avant-ss/fonts/TheSnB6.AFM
13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
file:/N:/var/avant-ss/fonts/TheSnB6.afm
13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
file:/N:/var/avant-ss/fonts/TheSnB6.Afm
...doing this every time can't be good for performance?
Regards,
Richard.
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Re: Any way to cache fonts across rendering runs?
Posted by kennardconsulting <ri...@kennardconsulting.com>.
Jeremias,
Understood. Thank you so much for your prompt reply, and for all your work
to date on FOP.
I will keep an eye on the announcements for when/if such an improvement
becomes available. I wish you and the contributor luck (and my gratitude) in
implementing it!
Regards,
Richard.
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Re: Any way to cache fonts across rendering runs?
Posted by Jeremias Maerki <de...@jeremias-maerki.ch>.
You've noticed a flaw in FOP that we've been aware of for quite some
time. We've also already discussed possible approaches to improve this.
The problem: so far, it wasn't a big enough issue to anyone to dive into
it. A contributor is currently refactoring the loading of TrueType/OpenType
fonts (on fop-dev). Maybe that's one step in the direction of improving
the situation. I guess the main problem is the current inability to keep
the font metrics (static, cacheable) separate from the font subset
information (per-document).
On 25.09.2009 06:02:59 kennardconsulting wrote:
>
> Hi guys,
>
> FOP 'best practice' says that I should call FopFactory.newFop at the start
> of each render. Internally, however, this creates a new FOTreeBuilder, which
> in turn creates a FOEventHandler, which in turn creates a FontInfo, which in
> turn has a font cache.
>
> Is there no way to re-use this font cache across multiple rendering runs?
>
> I note in my logs that FOP keeps going looking for various
> uppercase/lowercase versions of filenames on the disk...
>
> 13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
> file:/N:/var/avant-ss/fonts/TheSnB3.AFM
> 13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
> file:/N:/var/avant-ss/fonts/TheSnB3.afm
> 13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
> file:/N:/var/avant-ss/fonts/TheSnB3.Afm
> 13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
> file:/N:/var/avant-ss/fonts/TheSnB6.AFM
> 13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
> file:/N:/var/avant-ss/fonts/TheSnB6.afm
> 13:56:51,046 http-127.0.0.1-8080-1 DEBUG [FOP] File not found:
> file:/N:/var/avant-ss/fonts/TheSnB6.Afm
>
> ...doing this every time can't be good for performance?
>
> Regards,
>
> Richard.
> --
> View this message in context: http://www.nabble.com/Any-way-to-cache-fonts-across-rendering-runs--tp25606243p25606243.html
> Sent from the FOP - Users mailing list archive at Nabble.com.
>
Jeremias Maerki
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