Vitaliy Margolen : dinput: Clamp joystick position values to min-max range.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f2bdd8d96c5b0f3cf1f12568677d2ff57e7e6c31
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=f2bdd8d96c5b0f3cf1f1256867...

Author: Vitaliy Margolen 
Date:   Tue May 13 07:33:31 2008 -0600

dinput: Clamp joystick position values to min-max range.

---

dlls/dinput/joystick_linuxinput.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/dlls/dinput/joystick_linuxinput.c b/dlls/dinput/joystick_linuxinput.c
index 50befd9..13bc1fb 100644
--- a/dlls/dinput/joystick_linuxinput.c
+++ b/dlls/dinput/joystick_linuxinput.c
@@ -110,6 +110,10 @@ LONG joystick_map_axis(ObjProps *props, int val)
     ret = MulDiv( val, props->lMax - props->lMin, dev_range ) +
           (props->lMin + props->lMax) / 2;

+    /* Clamp in case or rounding errors */
+    if      (ret > props->lMax) ret = props->lMax;
+    else if (ret < props->lMin) ret = props->lMin;
+
     TRACE( "(%d <%d> %d) -> (%d <%d> %d): val=%d ret=%d\n",
            props->lDevMin, dead_zone, props->lDevMax,
            props->lMin, props->lDeadZone, props->lMax,