fbtest: add gradients pattern
This pattern draws red, green, blue, and white color gradients, together with
3 anchor rectangles in corners.

To be used with automated screen testing via computer vision methods.

Suggested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Tested-by: Chris Healy <[1]cphealy@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent e69017c commit 162cbde1dd62710a506d86bce2e57e26dad3d801
@Nikita Yushchenko Nikita Yushchenko authored on 12 Oct 2017
Sascha Hauer committed on 16 Oct 2017
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commands/fbtest.c