Ian Romanick pisze: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Michał Król wrote: > >> Ian Romanick pisze: >> >>> Synchronization, memory barriers, atomic operations, etc. are all dark >>> voodoo. It's one of those things like crypto that really should be left >>> to the experts. Re-inventing it is almost universally the wrong choice. >>> >>> >> Ian, >> >> How would we use libatomic_ops in Windows environment? Would libatomic >> code be an integral part of gallium codebase or would it be something >> the end user would have to pull in from external source in order to >> compile mesa? >> > > I'd expect the user would have to pull it from upstream. I think there > is a Windows build available, so that should be too difficult. If there > isn't we could make a Windows build available on mesa3d.org. This > wouldn't be any different that with LLVM, right? > > But is it really worth the effort for such a primitve functionality as atomic ops? Especially when the operating system provides you with a neat set of entry points that let you do things with a single call?
I hardly agree that atomic operations are magic and require non-trivial amount of effort to do right. I haven't looked at libatomic's sources, but I bet its value is in a fine support for multitude of systems out there. I am affraid we are not the target audience of the library in question -- if you do some big & fancy multithreaded math app it makes sense to pull in the library and recompile the code for a new platform. For gallium, however, porting to a new environment is a challenge and an ultimate goal of gallium development. ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
