** Also affects: ubuntu-ui-toolkit (Ubuntu RTM)
Importance: Undecided
Status: New
** Changed in: ubuntu-ui-toolkit (Ubuntu RTM)
Status: New => Fix Committed
** Changed in: ubuntu-ui-toolkit (Ubuntu RTM)
Status: Fix Committed => Fix Released
** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Changed in: canonical-devices-system-image
Assignee: (unassigned) => Zoltan Balogh (bzoltan)
** Changed in: canonical-devices-system-image
Milestone: None => ww08-2016
** Changed in: canonical-devices-system-image
Importance: Undecided => High
** Changed in: canonical-devices-system-image
Status: New => Fix Committed
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in
Ubuntu.
https://bugs.launchpad.net/bugs/1439133
Title:
[MainView] Background color and image rendering is too slow
Status in Canonical System Image:
Fix Committed
Status in ubuntu-ui-toolkit package in Ubuntu:
Fix Released
Status in ubuntu-ui-toolkit package in Ubuntu RTM:
Fix Released
Bug description:
The MainView renders at the bottom-most layer a background composed of
a colored rectangle and an image. The way it is currently implemented
implies two fullscreen passes with alpha blending on. This is very
slow. A solution would be to use just one pass using a ShaderEffect or
a dedicated C++ component. Disabling alpha blending (possible since
it's the bottom-most layer) would also provide a good performance
boost. Another idea, if no image needs to be rendered, would be to
simply set the GPU clear color to the background color, to render it
for free.
To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1439133/+subscriptions
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