* We currently use the DisplayColorCalibration API for setting display
temperature which makes a lot of guesses about what temperature
the display really is. Some devices will support the new ColorBalance
API (via QDCM or other mechanism), which offers a calibrated
alternative. Add support for this, which will supercede DCC if
available.
* Additionally, define the available color temperature range as a
set of overlayable values so this can be specified per-device.
This range will be mapped to balance values using the power curve
calculations in the new MathUtils class.
Change-Id: I99608c09807b747d962680293c7b0cee8d669003
The features xml plays two roles:
1) To allow sdk interface (constructor) to throw when system
service is unavailable. This allows for clearer platform
development debugging.
2) To allow for simpler disambiguation of what services to
instrument in a modular environment.
Change-Id: I41f4ac60af076743909c6090fd50c3ad045bc9e1
It's sometimes useful to know what physical device you're using.
CMHW SerialNumber and an "ro.serialno" property already exists, but
are not guaranteed to be unique. Different OEM may use overlapping
numbering schemes, and sometimes placeholder like "012345ABCDE" are
used.
Attempt to work around these shortcomings by defining a new
UniqueDeviceId class that provides a globally unique device ID that
is both deterministic for a given device and designed not to overlap
with IDs of any other devices.
Change-Id: I3f426972558394ba8e78261273ac8521aa603327
Some of this exists in the PersistentStorage implementation, but it
was never formally documented in the APIs. Inherit the cmhw implementation
error checking & move it into the service.
Add tests to validate the new restrictions & a test that was previously
failing.
Change-Id: I3ecda29fdd28bbc4e6d8ccce7511c4644065ea46
* Add support for reading and writing values from/to persistent
storage. Requires the MANAGE_PERSISTENT_STORAGE permission, which
should not be available for general use by applications.
Change-Id: I8a793396d207f23fcda851c172372f2073778eec
Zhao Wei Liew