TransformationMatrix started out as floats, then got changed to doubles in <http://trac.webkit.org/changeset/40761>
This was done because on most hardware there is no penalty for using doubles over floats, and provided a better match with our system APIs that used doubles. I'd prefer to take a forward-looking stance here, and assume that in time hardware will catch up. Simon On May 21, 2012, at 4:04 AM, Zoltan Herczeg wrote: > Hi, > > is there any reason why the transformations in WebKit use doubles? We > could optimize some functions further with ARM SIMD if they would be > floats. Is there any objection to make them float if the change would have > no other side effects except some rounding because of the lower precision? > > Regards, > Zoltan > > > _______________________________________________ > webkit-dev mailing list > webkit-dev@lists.webkit.org > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
