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28-Aug-2013 |
Joseph Hwang <josephsih@chromium.org> |
firmware_TouchMTB: replay with a touch input device and capture images
It would be handy if we could replay a raw data file into a touch
input device node and capture its mtplot image for examination.
It requires the following steps:
1. Convert the raw data file in mtplot format to evemu format.
2. Launch mtplot.
3. Use evemu-play to replay the raw data file in evemu format.
4. Dump the screenshot of mtplot and save it in an image file.
For more details about the raw data format, the mtplot format
looks like:
Event: time 171466.621737, type 3 (EV_ABS), code 0 (ABS_X), value 1272
while its corresponding evemu format looks like
E: 171466.621737 0003 0000 1272
The mtplot format is more human readable, while only the
evemu format is supported by evemu-play to replay the raw
data into the touch device node.
BUG=chromium:282029
TEST=Follow the steps below on a Link:
$ cd /usr/local/autotest/tests/firmware_TouchMTB
Replay an existing raw data file using touchpad device node:
$ python tools/mtplot_play.py tests/logs/link/20130806_221321-fw_1.0.AA-robot/one_finger_tracking.left_to_right.normal-link-fw_1.0.AA-robot-20130806_221509.dat
Replay an existing raw data file using touchscreen device node:
(This is only possible on Link which has the touchscreen.)
$ python tools/mtplot_play.py -d touchscreen tests/logs/link/20130806_221321-fw_1.0.AA-robot/one_finger_tracking.left_to_right.normal-link-fw_1.0.AA-robot-20130806_221509.dat
Observe that it launches mtplot, replays the raw data file, the
cursor moves automatically on the mtplot. After the replay is
finished, it prompts that the corresponding evemu data file and
the image file are saved.
Change-Id: Ia291e0dadf05736db64ee1d6a667ff075db9a21c
Reviewed-on: https://chromium-review.googlesource.com/167603
Reviewed-by: Charles Mooney <charliemooney@chromium.org>
Tested-by: Shyh-In Hwang <josephsih@chromium.org>
Commit-Queue: Shyh-In Hwang <josephsih@chromium.org>
/external/autotest/client/site_tests/firmware_TouchMTB/tools/mtplot_play.py
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