Review Request 119425: Cache the textures created for the fast path

[David Edmundson]

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Ship it!



src/declarativeimports/core/framesvgitem.cpp
<https://git.reviewboard.kde.org/r/119425/#comment43878>

    This comment is now wrong.
    
    So sorry!


Also (pedantry) it's not a hash; it's a static counter inside the QImage constructor/detatch so it's super fast.

- David Edmundson


On July 25, 2014, 10:14 a.m., Aleix Pol Gonzalez wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/119425/
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> (Updated July 25, 2014, 10:14 a.m.)
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> 
> Review request for Plasma.
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> Repository: plasma-framework
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> Description
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> Create a cache that has pointers to all the textures that we've generated, so in case we have one already created, we can re-use it.
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> Diffs
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>   src/declarativeimports/core/framesvgitem.cpp 323b06b 
>   src/declarativeimports/core/iconitem.cpp 38012cc 
>   src/declarativeimports/core/svgitem.cpp eccff55 
>   src/declarativeimports/core/svgtexturenode.h 21b9b2f 
>   src/desktoptheme/air/widgets/lineedit.svgz 8b3a123 
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> Diff: https://git.reviewboard.kde.org/r/119425/diff/
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> Testing
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> see the qDebug (to be removed before commit). 
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> plasmashell 2> out
> $ grep s_cache out | grep ": miss" | wc -l
> 342
> $ grep s_cache out | grep ": hit" | wc -l
> 126
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> So still having 3 times more hits than miss, so there's big room for improvement. Good news is that with this, we get a ~25% of memory and bandwidth save, in a per-item basis.
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> Thanks,
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> Aleix Pol Gonzalez
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>

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