On Jan 13, 2015 6:38 PM, "Kenneth Graunke" <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>> wrote: > > On Tuesday, January 13, 2015 10:28:20 AM Jason Ekstrand wrote: > > Going through the for loop every time has noticable overhead. This fixes > > things up so we only do that once ever and then just do a hash table lookup > > which should be much cheaper. > > --- > > src/mesa/main/formats.c | 67 +++++++++++++++++++++++++++++++++++++++++-------- > > 1 file changed, 56 insertions(+), 11 deletions(-) > > This will break Windows. Why? We have a C++11-based implementation of pthread_once. --Jason