[PATCH dix] dix: Added a "flat" acceleration profile that provides a linear pointer response.

[Orhan Kavrakoglu]

From: Orhan Kavrakoğlu <aibok42 at gmail.com>

This profile disables pointer acceleration in the conventional sense
yet still allows one to adjust sensitivity using the "acceleration"
control.

Signed-off-by: Orhan Kavrakoğlu <aibok42 at gmail.com>
---
  dix/ptrveloc.c     |   13 +++++++++++++
  include/ptrveloc.h |    3 ++-
  2 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/dix/ptrveloc.c b/dix/ptrveloc.c
index ccd445e..2349c11 100644
--- a/dix/ptrveloc.c
+++ b/dix/ptrveloc.c
@@ -953,6 +953,17 @@ NoProfile(
      return 1.0f;
  }

+static float
+FlatProfile(
+    DeviceIntPtr dev,
+    DeviceVelocityPtr vel,
+    float velocity,
+    float threshold,
+    float acc)
+{
+    return acc;
+}
+
  static PointerAccelerationProfileFunc
  GetAccelerationProfile(
      DeviceVelocityPtr vel,
@@ -977,6 +988,8 @@ GetAccelerationProfile(
              return SmoothLimitedProfile;
          case AccelProfileNone:
              return NoProfile;
+        case AccelProfileFlat:
+            return FlatProfile;
          default:
              return NULL;
      }
diff --git a/include/ptrveloc.h b/include/ptrveloc.h
index c14e12d..151dcf2 100644
--- a/include/ptrveloc.h
+++ b/include/ptrveloc.h
@@ -38,7 +38,8 @@
  #define AccelProfilePower 5
  #define AccelProfileLinear 6
  #define AccelProfileSmoothLimited 7
-#define AccelProfileLAST AccelProfileSmoothLimited
+#define AccelProfileFlat 8
+#define AccelProfileLAST AccelProfileFlat

  /* fwd */
  struct _DeviceVelocityRec;
-- 
1.7.1