Hi list, I am interested in implementing a cache manager for VGPath(s) for the openvg sybsystem, and I am thinking after a bit of reading the proper way to do that,is by creating an LRU (in similar fashion as with QVGImagePool).
Since paths are more prone to alterations (to my understanding at least) am looking a way to quickly destroy the vgpath associated, and the only viable way is by <ahem>adding some extra logic in the QVectorPath and QPainterPath to handle the invalidations (ideally it would be just check if a pointer is non-null and then free). Alternatively, without altering the QVectorPath and QPainterPath I would create a copy of the actual path object inside a "structure" together with some unique identifiable info (ie a pointer to the original object), together with the vgpath file handle) and each time I access to access the path I do some checks if the local cached copy is identical to the original, which is more costly in terms of computation. (given the first approach, hacking QVectorPath and QPainterPath) If that code is wrapped in ifdefs, and enabled only in some scenario, do you consider this to be the right way to go ? Am I missing something? BR, N. _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
