touch-packages team mailing list archive

[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

Hmm, it might be an unavoidable feature of the GL driver on these
devices actually (inherited from Android).

If the hardware graphics driver is saying OK to 16-bit pixels then I'm
not sure what we can do to stop it. We'd just have to avoid asking for
less than 8 bits per channel in SDL, or get around to implementing
enhancement bug 1469673.

Mir tries to make it very clear that only 8 bits per channel is
supported and forces everyone (including SDL) to choose a 24 or 32-bit
pixel format. So it sounds like that's not providing a guarantee that
the Android GL driver will actually honour the agreed pixel format.

On that note, I have suspected for a while that Mir forcing clients to
choose a pixel format independently of choosing a GL config was
redundant and could cause confusion like this. If we can remove one of
those steps it would help.

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1460149

Title:
  Visible corruption in SDL apps (Neverball, Neverputt) on Nexus 4 /
  Nexus 7.

Status in Mir:
  Invalid
Status in libsdl2 package in Ubuntu:
  Triaged
Status in mir package in Ubuntu:
  Invalid
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  https://github.com/pseuudonym404/neverball-touch/issues/2

  Install neverball or neverputt from the click store:-

  https://uappexplorer.com/app/neverputt.lb
  https://uappexplorer.com/app/neverball.lb

  Note they work fine on krillin and arale, however there's corruption
  making the games unusable on Nexus 4 and Nexus 7.

  Simpler test cases are provided at the above linked github issue.
  Attaching them to this bug for persistence.

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