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Move filtering into a separate function

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No functional changes.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
This commit is contained in:
Peter Hutterer
2012-03-09 13:39:32 +10:00
parent 4eea50d513
commit f0381f48a9
1 changed files with 12 additions and 4 deletions
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16
src/synaptics.c
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@@ -2743,6 +2743,17 @@ out:
#endif
}
static void
filter_jitter(SynapticsPrivate *priv, int *x, int *y)
{
SynapticsParameters *para = &priv->synpara;
priv->hyst_center_x = hysteresis(*x, priv->hyst_center_x, para->hyst_x);
priv->hyst_center_y = hysteresis(*y, priv->hyst_center_y, para->hyst_y);
*x = priv->hyst_center_x;
*y = priv->hyst_center_y;
}
/*
* React on changes in the hardware state. This function is called every time
* the hardware state changes. The return value is used to specify how many
@@ -2780,10 +2791,7 @@ HandleState(InputInfoPtr pInfo, struct SynapticsHwState *hw, CARD32 now,
/* apply hysteresis before doing anything serious. This cancels
* out a lot of noise which might surface in strange phenomena
* like flicker in scrolling or noise motion. */
priv->hyst_center_x = hysteresis(hw->x, priv->hyst_center_x, para->hyst_x);
priv->hyst_center_y = hysteresis(hw->y, priv->hyst_center_y, para->hyst_y);
hw->x = priv->hyst_center_x;
hw->y = priv->hyst_center_y;
filter_jitter(priv, &hw->x, &hw->y);
inside_active_area = is_inside_active_area(priv, hw->x, hw->y);