Input: Widen pointer acceleration types to double

This widens almost all of the float-using code in ptrveloc.[ch] to
doubles, other than values coming from properties which are specified to
be floats by the property API.

Bumps input API to v14 as this changes the AccelScheme signature, as
used by xf86-input-synaptics.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>

1 files changed, 16 insertions, 16 deletions

diff --git a/include/ptrveloc.h b/include/ptrveloc.h
index 6ca309c8c..4f76b0094 100644
--- a/include/ptrveloc.h
+++ b/include/ptrveloc.h
@@ -47,9 +47,9 @@ struct _DeviceVelocityRec;
  * profile
  * returns actual acceleration depending on velocity, acceleration control,...
  */
-typedef float (*PointerAccelerationProfileFunc)
+typedef double (*PointerAccelerationProfileFunc)
               (DeviceIntPtr dev, struct _DeviceVelocityRec* vel,
-               float velocity, float threshold, float accelCoeff);
+               double velocity, double threshold, double accelCoeff);
 
 /**
  * a motion history, with just enough information to
@@ -57,8 +57,8 @@ typedef float (*PointerAccelerationProfileFunc)
  * a more or less straight line
  */
 typedef struct _MotionTracker {
-    int dx, dy;     /* accumulated delta for each axis */
-    int time;         /* time of creation */
+    double dx, dy;  /* accumulated delta for each axis */
+    int time;       /* time of creation */
     int dir;        /* initial direction bitfield */
 } MotionTracker, *MotionTrackerPtr;
 
@@ -69,17 +69,17 @@ typedef struct _DeviceVelocityRec {
     MotionTrackerPtr tracker;
     int num_tracker;
     int cur_tracker;        /* current index */
-    float   velocity;       /* velocity as guessed by algorithm */
-    float   last_velocity;  /* previous velocity estimate */
-    int     last_dx;      /* last time-difference */
-    int     last_dy ;     /* phase of last/current estimate */
-    float   corr_mul;       /* config: multiply this into velocity */
-    float   const_acceleration;  /* config: (recipr.) const deceleration */
-    float   min_acceleration;    /* config: minimum acceleration */
+    double  velocity;       /* velocity as guessed by algorithm */
+    double  last_velocity;  /* previous velocity estimate */
+    double  last_dx;        /* last time-difference */
+    double  last_dy;        /* phase of last/current estimate */
+    double  corr_mul;       /* config: multiply this into velocity */
+    double  const_acceleration;  /* config: (recipr.) const deceleration */
+    double  min_acceleration;    /* config: minimum acceleration */
     short   reset_time;     /* config: reset non-visible state after # ms */
     short   use_softening;  /* config: use softening of mouse values */
-    float   max_rel_diff;   /* config: max. relative difference */
-    float   max_diff;       /* config: max. difference */
+    double  max_rel_diff;   /* config: max. relative difference */
+    double  max_diff;       /* config: max. difference */
     int     initial_range;  /* config: max. offset used as initial velocity */
     Bool    average_accel;  /* config: average acceleration over velocity */
     PointerAccelerationProfileFunc Profile;
@@ -107,11 +107,11 @@ extern _X_EXPORT void
 InitTrackers(DeviceVelocityPtr vel, int ntracker);
 
 extern _X_EXPORT BOOL
-ProcessVelocityData2D(DeviceVelocityPtr vel, int dx, int dy, int time);
+ProcessVelocityData2D(DeviceVelocityPtr vel, double dx, double dy, int time);
 
-extern _X_EXPORT float
+extern _X_EXPORT double
 BasicComputeAcceleration(DeviceIntPtr dev, DeviceVelocityPtr vel,
-    float velocity, float threshold, float acc);
+    double velocity, double threshold, double acc);
 
 extern _X_EXPORT void
 FreeVelocityData(DeviceVelocityPtr vel);