Module: Mesa Branch: master Commit: c88a0b6af318c02b2ffa6958187672da9b3838ce URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=c88a0b6af318c02b2ffa6958187672da9b3838ce
Author: Brian Paul <[email protected]> Date: Tue Feb 25 09:53:49 2014 -0700 st/mesa: add comment to explain _min(), _maxf(), etc. functions Reviewed-by: Marek Olšák <[email protected]> --- src/mesa/state_tracker/st_extensions.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index d053efb..18ddd4e 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -39,6 +39,12 @@ #include "st_extensions.h" #include "st_format.h" + +/* + * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to + * avoid evaluating arguments (which are often function calls) more than once. + */ + static unsigned _min(unsigned a, unsigned b) { return (a < b) ? a : b; _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
