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GRAPHICS/BASE: add maxExtraPixels() to ScalerMan

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Eric Culp 2012-05-28 16:26:31 -04:00 • committed by Filippos Karapetis
parent 489d361d18
commit ca1754c047
2 changed files with 20 additions and 0 deletions
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13
base/plugins.cpp
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@ -960,3 +960,16 @@ DECLARE_SINGLETON(ScalerManager);
const ScalerPlugin::List &ScalerManager::getPlugins() const { const ScalerPlugin::List &ScalerManager::getPlugins() const {
return (const ScalerPlugin::List &)PluginManager::instance().getPlugins(PLUGIN_TYPE_SCALER); return (const ScalerPlugin::List &)PluginManager::instance().getPlugins(PLUGIN_TYPE_SCALER);
} }
int ScalerManager::getMaxExtraPixels() const {
int maxPixels = 0;
ScalerPlugin::List plugins = getPlugins();
ScalerPlugin::List::iterator i = plugins.begin();
for (; i != plugins.end(); ++i) {
int n = (**i)->extraPixels();
if (n > maxPixels) {
maxPixels = n;
}
}
return maxPixels;
}

7
graphics/scalerplugin.h
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@ -96,6 +96,13 @@ private:
public: public:
const ScalerPlugin::List &getPlugins() const; const ScalerPlugin::List &getPlugins() const;
/**
* Queries all scaler plugins for the maximum number of pixels they
* can access out of bounds. Useful for adding extra rows and columns
* to surfaces.
*/
int getMaxExtraPixels() const;
}; };
/** Convenience shortcut for accessing singleton */ /** Convenience shortcut for accessing singleton */