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Clarify that kFeatureOverlaySupportsAlpha should only be set if at least a few bits of alpha are present
svn-id: r21963
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@ -125,6 +125,8 @@ public:
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/**
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* Set to true if the overlay pixel format has an alpha channel.
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* This should only be set if it offers at least 5-6 bits of accuracy,
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* as opposed to a single alpha bit.
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*/
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kFeatureOverlaySupportsAlpha
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};
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