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Move all headers into include, separate source files into modules
match, mtdev, src and driver, move some common definitions to
common.h, and include define support for the MT slot protocol.
This patch does not introduce any logical changes.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Robust thumb detection is essential for more advanced gestures, thumbs
being responsible for many false positives. One major feature of the
thumb is that its shape is oval, regardless of applied pressure. An
index finger pressed hard against the surface also turns oval, but the
touch/width ratio then increases significantly. This suggests that it
is possible to uniquely identify a resting thumb as a finger with oval
shape and normal touch/with ratio.
This patch adds detection of resting thumbs to the MTFinger structure.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Switch from the FingerData structure to the MTFinger structure, making
room for more computed finger details in MTState.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The HWState keeps, for good reason, both touching fingers and fingers
going away. However, this implies that additional logic is needed to
keep track of the number of actual touching fingers. In particular
the test for touching fingers is somewhat misplaced in hwstate.c.
Moreover, HWState should only exist in one instance, since it contains
data which does not need to be referred to during gesture extraction.
This patch introduces the MTState structure, which keeps more digested
data for gesture extraction. In particular, it only keeps the actual
touches.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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