Commit Graph

2 Commits

Author SHA1 Message Date
Siarhei Vishniakou
45c1d0c192 Move input definitions into separate HAL
The types added for input in InputClassifier HAL are not specific to
that HAL. These are common input definitions.

To allow for future reuse in this and other HALs, move these definitions
into a separate, type-only HAL android::hardware::input::common.

This will be similar to such existing HALs as:
hardware/interfaces/graphics/common
hardware/interfaces/camera/common
hardware/interfaces/audio/common

Test: make only
Bug: 111480215
Change-Id: I16d76d6bdb48b24487b232fda45c6146e1003fe9
2019-01-26 18:42:46 -08:00
Siarhei Vishniakou
a0e7f731c7 Add an InputClassifier HAL
The new HAL will be responsible for processing touch video frames that
are received from InputClassifier stage.
After processing, the HAL will generate a classification of the current
gesture. This classification will later be provided to the app via
the MotionEvent.getClassification() public API.

The eventual goal is to classify each event stream as a force touch
or not a force touch.

An example implementation of the HAL is presented here. This code was
used for local testing on blueline, and should not be actually installed
or used in any way other than for reference.

Bug: 62940136
Test: observed "detected deep press" logs when pressing with large
finger area on the touchscreen
Change-Id: Id6ac4337435e4ac07877da11ca184b6dd4d64780
2019-01-09 15:01:16 -08:00