New method brw_writemask_for_size() will return a writemask with the first 'size' components activated.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89580 --- src/mesa/drivers/dri/i965/brw_reg.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_reg.h b/src/mesa/drivers/dri/i965/brw_reg.h index c8b1341..83fe488 100644 --- a/src/mesa/drivers/dri/i965/brw_reg.h +++ b/src/mesa/drivers/dri/i965/brw_reg.h @@ -950,6 +950,15 @@ brw_set_writemask(struct brw_reg reg, unsigned mask) return reg; } +static inline unsigned +brw_writemask_for_size(unsigned n) +{ + unsigned writemask = 0; + for (unsigned i = 0; i < n; i++) + writemask |= 1 << i; + return writemask; +} + static inline struct brw_reg negate(struct brw_reg reg) { -- 2.1.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
