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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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This patchs adds optional XI2.1 support to utouch-frame. The
utouch/frame-xi2.h header contains helper functions equivalent
to utouch/frame-mtdev.h. In addition, the device-to-screen mapping
is handled via XEvents and optionally XIPropertyEvent. The latter
allows free device placement via xinput set-prop, useful in multi-
head setups, thanks to Chase Douglas. Touch frame events can be tested
using the utouch-frame-test-xi2 tool. Use --with-xi to enable.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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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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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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