New method brw_writemask_for_size() will return a writemask with the first
'size'
components activated.
---
src/mesa/drivers/dri/i965/brw_reg.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_reg.h
b/src/mesa/drivers/dri/i965/brw_reg.h
index c8b1341..7355db6 100644
--- a/src/mesa/drivers/dri/i965/brw_reg.h
+++ b/src/mesa/drivers/dri/i965/brw_reg.h
@@ -950,6 +950,12 @@ brw_set_writemask(struct brw_reg reg, unsigned mask)
return reg;
}
+static inline unsigned
+brw_writemask_for_size(unsigned n)
+{
+ return (1 << n) - 1;
+}
+
static inline struct brw_reg
negate(struct brw_reg reg)
{
--
2.1.4
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