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authorPeter Hutterer <peter.hutterer@who-t.net>2013-07-19 11:08:43 +1000
committerPeter Hutterer <peter.hutterer@who-t.net>2013-12-05 09:45:04 +1000
commitf4ddbde165843924195b08551d7d6d6200c44b23 (patch)
treeac69c0ea22381c6f18ff822fbd9c757203d813c3
parent96cf04dce19e7c90bc05b8b3b192b5bfb97381d2 (diff)
Disable driver scaling for input ABI 19.2
For absolute devices in relative mode, i.e. touchpads, the server now takes device resolution into account. Doing so means that the driver mustn't scale, so we deactivate those bits in the driver. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> (cherry picked from commit 0fb59b3487d57523a03f078a2061e2ea0cacbc7c)
-rw-r--r--src/synaptics.c9
-rw-r--r--src/synapticsstr.h10
2 files changed, 19 insertions, 0 deletions
diff --git a/src/synaptics.c b/src/synaptics.c
index eb38271..e391a98 100644
--- a/src/synaptics.c
+++ b/src/synaptics.c
@@ -133,9 +133,11 @@ static int DeviceOff(DeviceIntPtr);
static int DeviceClose(DeviceIntPtr);
static Bool QueryHardware(InputInfoPtr);
static void ReadDevDimensions(InputInfoPtr);
+#ifndef NO_DRIVER_SCALING
static void ScaleCoordinates(SynapticsPrivate * priv,
struct SynapticsHwState *hw);
static void CalculateScalingCoeffs(SynapticsPrivate * priv);
+#endif
static void SanitizeDimensions(InputInfoPtr pInfo);
void InitDeviceProperties(InputInfoPtr pInfo);
@@ -829,7 +831,10 @@ SynapticsPreInit(InputDriverPtr drv, InputInfoPtr pInfo, int flags)
set_default_parameters(pInfo);
+#ifndef NO_DRIVER_SCALING
CalculateScalingCoeffs(priv);
+#endif
+
priv->comm.buffer = XisbNew(pInfo->fd, INPUT_BUFFER_SIZE);
@@ -2863,7 +2868,9 @@ HandleState(InputInfoPtr pInfo, struct SynapticsHwState *hw, CARD32 now,
* calculations that require unadjusted coordinates, for example edge
* detection.
*/
+#ifndef NO_DRIVER_SCALING
ScaleCoordinates(priv, hw);
+#endif
}
dx = dy = 0;
@@ -2987,6 +2994,7 @@ QueryHardware(InputInfoPtr pInfo)
return TRUE;
}
+#ifndef NO_DRIVER_SCALING
static void
ScaleCoordinates(SynapticsPrivate * priv, struct SynapticsHwState *hw)
{
@@ -3016,3 +3024,4 @@ CalculateScalingCoeffs(SynapticsPrivate * priv)
priv->vert_coeff = 1;
}
}
+#endif
diff --git a/src/synapticsstr.h b/src/synapticsstr.h
index 428befa..a9901a2 100644
--- a/src/synapticsstr.h
+++ b/src/synapticsstr.h
@@ -28,6 +28,14 @@
#define LogMessageVerbSigSafe xf86MsgVerb
#endif
+#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 19
+#if GET_ABI_MINOR(ABI_XINPUT_VERSION) >= 2
+/* as of 19.2, the server takes device resolution into account when scaling
+ relative events from abs device, so we must not scale in synaptics. */
+#define NO_DRIVER_SCALING 1
+#endif
+#endif
+
#ifdef DBG
#undef DBG
#endif
@@ -250,8 +258,10 @@ struct _SynapticsPrivateRec {
int prev_z; /* previous z value, for palm detection */
int prevFingers; /* previous numFingers, for transition detection */
int avg_width; /* weighted average of previous fingerWidth values */
+#ifndef NO_DRIVER_SCALING
double horiz_coeff; /* normalization factor for x coordintes */
double vert_coeff; /* normalization factor for y coordintes */
+#endif
int minx, maxx, miny, maxy; /* min/max dimensions as detected */
int minp, maxp, minw, maxw; /* min/max pressure and finger width as detected */