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[Bug 1403089] Re: pictures uploaded from gallery are plain black on mako only

 

The initial fix that tweaked the accept timer for the content picker
dialog was a red herring. It seemed to work but it was most likely
timing related.

As of now I cannot repro the scenario highlighted above: waiting a bit
after the picture appeared in the composition dialog before posting it
to make it work.

After inspecting the logs, I found this suspicious line

[0819/192717:ERROR:gles2_cmd_decoder.cc(8216)]
[GroupMarkerNotSet(crbug.com/242999)!:8CA7A591]GL ERROR :GL_INVALID_ENUM
: glReadPixels: format was GL_BGRA_EXT

right after posting the image, and that does not appear in other non
mako contexts.

It *might* (still under investigation) be triggered when twitter reads
back from the canvas that displays the image in the message composition
dialog to get access to its content ... and seems be gpu related
(GL_BGRA_EXT not being supported)

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https://bugs.launchpad.net/bugs/1403089

Title:
  pictures uploaded from gallery are plain black on mako only

Status in Canonical System Image:
  In Progress
Status in The Webapps-core project:
  In Progress
Status in webapps-sprint:
  In Progress
Status in webbrowser-app package in Ubuntu:
  In Progress

Bug description:
  When I upload a picture to twitter via the webapp from my Ubuntu
  phone, the pictures appear as just plain black in the web. The preview
  in the webapp looks o.k.

  The Bug is reproducable for me on this specific device. I have no other devices to test it further.
  There are no errors and the connection type doesn't matter.

  Device is mako | Version: RTM Ubuntu 14.10 (r11)

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