> Certainly there may be advantages if the transform may be shared > between threads without locking, and there are very clear advantages > if the transforms may be simultaneously generated by multiple > threads, or if a transform may be cloned by a thread (into fast local > memory) for its use. >
The idea on lcms-2 is a cmsDoTransform() is re-entrant and same transform can be shared between threads. The locking happens only if 1-pixel caché is being used, and in this case once per cmsDoTransform() call. So, you could try to inhibit caché (there is a flag to do so) or process large chunks of data in each cmsDoTransform(). Probably there is a room for improvement, but the basis are already in the code. Regards Marti ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
