It will be useful for the nouveau DRI driver and IMHO there's no reason to keep it private. --- src/mesa/main/bitset.h | 25 ++++++++++++++++++++++++- 1 files changed, 24 insertions(+), 1 deletions(-)
diff --git a/src/mesa/main/bitset.h b/src/mesa/main/bitset.h index 8bd4526..f2709ab 100644 --- a/src/mesa/main/bitset.h +++ b/src/mesa/main/bitset.h @@ -27,7 +27,12 @@ * \brief Bitset of arbitrary size definitions. * \author Michal Krol */ - + +#ifndef BITSET_H +#define BITSET_H + +#include "imports.h" + /**************************************************************************** * generic bitset implementation */ @@ -74,6 +79,23 @@ ((x)[BITSET_BITWORD(b)] &= ~BITSET_RANGE(b, e)) : \ (assert (!"BITSET_CLEAR_RANGE: bit range crosses word boundary"), 0)) +/* Get first bit set in a bitset. + */ +static INLINE int +__bitset_ffs(const BITSET_WORD *x, int n) +{ + int i; + + for (i = 0; i < n; i++) { + if (x[i]) + return _mesa_ffs(x[i]) + BITSET_WORDBITS * i; + } + + return 0; +} + +#define BITSET_FFS(x) __bitset_ffs(x, Elements(x)) + /**************************************************************************** * 64-bit bitset implementation */ @@ -120,3 +142,4 @@ ((x)[BITSET64_BITWORD(b)] &= ~BITSET64_RANGE(b, e)) : \ (assert (!"BITSET64_CLEAR_RANGE: bit range crosses word boundary"), 0)) +#endif -- 1.6.4.4 ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev