[haiku-3rdparty-dev] Re: Threads & Signals (was Building Screensavers)
- From: Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>
- To: haiku-3rdparty-dev@xxxxxxxxxxxxx
- Date: Thu, 12 Jul 2012 16:49:58 +0200
On 12.07.2012 17:32, Andrew Wood wrote:
Im currently trying to improve the efficency of the file reading code
though. Initially just to get it up & running I've got it reading every
file into a c++ vector before drawing starts. This is fine if the
number of images & the file size is modest but it causes problems with
lots of large files.
Please have a look at the ShowImage source code in src/apps/showimage.
Of special interest are the classes ImageFileNavigator, and ImageCache
which you might be able to reuse almost completely.
All that is missing would be using a random order to iterate through the
files (possibly using a Navigator wrapper class).
I'm not sure if you've followed Haiku's coding style already, but this
sounds like a nice candidate for inclusion in trunk. In that case, the
ShowImage sources could be used directly, without the need for
duplication in the tree.
I would then also add a query iterator, I don't think ShowImage supports
that already.
Bye,
Axel.
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