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The current code accepts multi-finger non-mt devices such as
older synaptics trackpads, which breaks things since emulation
of these devices is not in place. Fixed with this patch.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The per-touch velocity is useful in many contexts. This patch
adds a simple estimator of the velocity, which also smooths out
position jumps caused by course-grained event updates.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The current implementation outputs most touch attributes in device
coordinates. However, the primary use case is to map the input device
onto an area on the screen, needed in particular for multihead setups.
Moreover, the XI2.1 backend works with screen coordinates, creating
an unnecessary discrepancy between backends. This patch adds the basic
transformation layer to the utouch surface, thus serving as the master
point of device-to-surface mapping.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Setup device properties based on udev heuristic for non-property,
devices. This patch only treats the cases POINTER && !DIRECT and
!POINTER && DIRECT the digitizer case, POINTER && DIRECT, is assumed
to be handled properly by the kernel properties.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Compiles and runs on mtdev. ABI proof.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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