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author | marha <marha@users.sourceforge.net> | 2015-04-20 22:42:55 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2015-04-20 22:42:55 +0200 |
commit | 934184bfecd402aae891b8740d788b486aa7269f (patch) | |
tree | c23fb0afd169dc6846ea23bda21260fcffd1e3e6 /mesalib/src/mesa/main/imports.h | |
parent | 57dd848fb6dd7cf15820172e2abc9fb9de2b4268 (diff) | |
parent | 4ba9be2882d9f1567809edb0a31fcdf11320d41f (diff) | |
download | vcxsrv-934184bfecd402aae891b8740d788b486aa7269f.tar.gz vcxsrv-934184bfecd402aae891b8740d788b486aa7269f.tar.bz2 vcxsrv-934184bfecd402aae891b8740d788b486aa7269f.zip |
Merge remote-tracking branch 'origin/released'
Conflicts:
mesalib/src/mesa/main/.gitignore
mesalib/src/mesa/main/dlopen.h
xorg-server/hw/xwin/glx/gen_gl_wrappers.py
xorg-server/hw/xwin/win.h
xorg-server/hw/xwin/winengine.c
xorg-server/hw/xwin/winglobals.c
xorg-server/hw/xwin/winscrinit.c
xorg-server/hw/xwin/winshaddd.c
xorg-server/randr/rrxinerama.c
Diffstat (limited to 'mesalib/src/mesa/main/imports.h')
-rwxr-xr-x | mesalib/src/mesa/main/imports.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/imports.h b/mesalib/src/mesa/main/imports.h index 8877966ec..27f54d585 100755 --- a/mesalib/src/mesa/main/imports.h +++ b/mesalib/src/mesa/main/imports.h @@ -432,6 +432,30 @@ _mesa_fls(unsigned int n) #endif } +/** + * Find the last (most significant) bit set in a uint64_t value. + * + * Essentially ffsll() in the reverse direction. + */ +static inline unsigned int +_mesa_flsll(uint64_t n) +{ +#ifdef HAVE___BUILTIN_CLZLL + return n == 0 ? 0 : 64 - __builtin_clzll(n); +#else + unsigned int v = 1; + + if (n == 0) + return 0; + + while (n >>= 1) + v++; + + return v; +#endif +} + + extern GLhalfARB _mesa_float_to_half(float f); |