XLibre/xf86-input-evdev
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Swap axes before applying touch screen calibration.

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When the SwapAxes option is set, the X and Y axes in calibration should
be labelled as the user perceives them -- not as the kernel sends them.

Currently, we apply the X-axis calibration to the X-axis of the input,
and then do the axis swapping so we've actually applied the X-axis
calibration to what the user sees as the Y-axis.

This patch changes the order of the operations, so that the axes are
swapped before the calibration is applied.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit f187badb71)
This commit is contained in:
David Woodhouse
2009-12-01 00:12:36 +00:00
committed by Peter Hutterer
parent 4f05afd495
commit 3772676fd6
1 changed files with 7 additions and 6 deletions
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13
src/evdev.c
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@@ -464,6 +464,13 @@ EvdevProcessValuators(InputInfoPtr pInfo, int v[MAX_VALUATORS], int *num_v,
*/
else if (pEvdev->abs && pEvdev->tool) {
memcpy(v, pEvdev->vals, sizeof(int) * pEvdev->num_vals);
if (pEvdev->swap_axes) {
int tmp = v[0];
v[0] = v[1];
v[1] = tmp;
}
if (pEvdev->flags & EVDEV_CALIBRATED)
{
v[0] = xf86ScaleAxis(v[0],
@@ -476,12 +483,6 @@ EvdevProcessValuators(InputInfoPtr pInfo, int v[MAX_VALUATORS], int *num_v,
pEvdev->calibration.max_y, pEvdev->calibration.min_y);
}
if (pEvdev->swap_axes) {
int tmp = v[0];
v[0] = v[1];
v[1] = tmp;
}
if (pEvdev->invert_x)
v[0] = (pEvdev->absinfo[ABS_X].maximum - v[0] +
pEvdev->absinfo[ABS_X].minimum);