[Marble-devel] Review Request: More robust tile loading

[jensmh at gmx.de]

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trunk/KDE/kdeedu/marble/src/lib/TextureTile.h
<http://reviewboard.kde.org/r/4444/#comment5922>

    Could not this stay a pointer also? It would prevent a QImage copy.



trunk/KDE/kdeedu/marble/src/lib/TileLoader.cpp
<http://reviewboard.kde.org/r/4444/#comment5923>

    This now returns a copy. Is this really necessary? Could we not try to not copy QImages at all?


- jmho


On 2010-06-25 12:49:24, Bernhard Beschow wrote:
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> (Updated 2010-06-25 12:49:24)
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> 
> Review request for marble.
> 
> 
> Summary
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> Motivation: It may happen that Marble receives invalid image data over the network or loads invalid image data from disk, making Marble really slow. This is caused by heavy debug output from QImage while Marble tries to access invalid image data. This will be qFatal in the upcoming Qt 4.7.
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> Solution: Check if the image is valid ater loading data into a QImage instead of blindly loading data into it. Also Q_ASSERT every image assignment in TextureTile.
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> Note that by this patch, Marble will abort when TileLoader::scaledLowerLevelTile() is not able to produce a scaled image. This could happen when the level-zero tile is missing.
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> 
> Diffs
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>   trunk/KDE/kdeedu/marble/src/lib/TextureTile.h 1142673 
>   trunk/KDE/kdeedu/marble/src/lib/TextureTile.cpp 1142673 
>   trunk/KDE/kdeedu/marble/src/lib/TileLoader.h 1142673 
>   trunk/KDE/kdeedu/marble/src/lib/TileLoader.cpp 1142673 
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> Diff: http://reviewboard.kde.org/r/4444/diff
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> 
> Testing
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> Works for me. Please test if it works for you as well!
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> 
> Thanks,
> 
> Bernhard
> 
>

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