[PATCH 03/27] Input: Convert ValuatorMask to double-precision internally

[Daniel Stone]

Switch the ValuatorMask struct to using doubles instead of ints for the
actual values.  Preserve the old int API, and (attempt to) round towards
zero for values we return.

Signed-off-by: Daniel Stone <daniel at fooishbar.org>
---
 dix/inpututils.c     |    4 ++--
 include/inpututils.h |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/dix/inpututils.c b/dix/inpututils.c
index bf8d093..085a6b4 100644
--- a/dix/inpututils.c
+++ b/dix/inpututils.c
@@ -514,7 +514,7 @@ valuator_mask_set(ValuatorMask *mask, int valuator, int data)
 int
 valuator_mask_get(const ValuatorMask *mask, int valuator)
 {
-    return mask->valuators[valuator];
+    return round_towards_zero(mask->valuators[valuator]);
 }
 
 /**
@@ -527,7 +527,7 @@ valuator_mask_unset(ValuatorMask *mask, int valuator)
         int i, lastbit = -1;
 
         ClearBit(mask->mask, valuator);
-        mask->valuators[valuator] = 0;
+        mask->valuators[valuator] = 0.0;
 
         for (i = 0; i <= mask->last_bit; i++)
             if (valuator_mask_isset(mask, i))
diff --git a/include/inpututils.h b/include/inpututils.h
index 92a7543..4d02125 100644
--- a/include/inpututils.h
+++ b/include/inpututils.h
@@ -34,7 +34,7 @@
 struct _ValuatorMask {
     int8_t      last_bit; /* highest bit set in mask */
     uint8_t     mask[(MAX_VALUATORS + 7)/8];
-    int         valuators[MAX_VALUATORS]; /* valuator data */
+    double      valuators[MAX_VALUATORS]; /* valuator data */
 };
 
 extern void verify_internal_event(const InternalEvent *ev);
-- 
1.7.5.3