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dinput: Fix dead zone calculation. 

Based on patch by Artur Szymiec.
This commit is contained in:
Vitaliy Margolen 2007-08-14 07:04:42 -06:00 committed by Alexandre Julliard
parent 1b819cbe87
commit 51fac7f28a
1 changed files with 7 additions and 4 deletions
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11
dlls/dinput/joystick_linuxinput.c
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@ -91,17 +91,20 @@ DWORD joystick_map_pov(POINTL *p)
LONG joystick_map_axis(ObjProps *props, int val)
{
LONG ret;
LONG center = (props->lMax - props->lMin) / 2;
/* map the value from the hmin-hmax range into the wmin-wmax range */
ret = MulDiv( val - props->lDevMin, props->lMax - props->lMin,
props->lDevMax - props->lDevMin ) + props->lMin;
props->lDevMax - props->lDevMin );
if ((ret >= -props->lDeadZone / 2 ) && (ret <= props->lDeadZone / 2))
ret = (props->lMax - props->lMin) / 2 + props->lMin;
if (abs( ret - center ) <= props->lDeadZone / 2 )
ret = center;
ret += props->lMin;
TRACE( "(%d %d) -> (%d <%d> %d): val=%d ret=%d\n",
props->lDevMin, props->lDevMax,
props->lMin, props->lDeadZone, props->lDevMax,
props->lMin, props->lDeadZone, props->lMax,
val, ret );
return ret;