FGFS-4.1/OpenSceneGraph
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Added virtual bool Texture::isDirty(contextID) method to help determine whether a GL texture object is likely to be out of date and needs updating

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Robert Osfield
2018-02-13 12:01:57 +00:00
parent 22d6ce826f
commit b8e5f22cb7
8 changed files with 45 additions and 1 deletions
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include/osg/TextureBuffer
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@@ -51,7 +51,10 @@ class OSG_EXPORT TextureBuffer : public Texture
/** Gets the const texture image. */
inline const Image* getImage() const { return dynamic_cast<Image*>(_bufferData.get() ); }
inline unsigned int & getModifiedCount(unsigned int contextID) const
/** return true if the texture image data has been modified and the associated GL texture object needs to be updated.*/
virtual bool isDirty(unsigned int contextID) const { return (_bufferData.valid() && _bufferData->getModifiedCount()!=_modifiedCount[contextID]); }
inline unsigned int & getModifiedCount(unsigned int contextID) const
{
// get the modified count for the current contextID.
return _modifiedCount[contextID];