Mir

[enhancement] Mir does not have any non-alpha pixel format on Nexus 4, preventing occlusion optimizations

Bug #1240833 reported by Daniel van Vugt
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mir
Fix Released
High
Alexandros Frantzis
mir (Ubuntu)
Fix Released
High
Unassigned

Bug Description

The Nexus 4 presently only reports one supported pixel format to clients: ABGR. This works, but it means occlusion optimizations will never be used on that platform.

We need to expose or fake at least one non-alpha (XBGR?) pixel format, so that if clients choose that they can be composited more efficiently.

Related branches

tags: added: nexus4 performance
summary: - [feature] Expose at least one non-alpha pixel format for Nexus 4
+ [enhancement] Expose at least one non-alpha pixel format for Nexus 4
tags: added: enhancement
removed: feature
summary: - [enhancement] Expose at least one non-alpha pixel format for Nexus 4
+ [enhancement] Mir does not have any non-alpha pixel format on Nexus 4,
+ preventing occlusion optimizations
Changed in mir:
importance: Medium → High
Changed in mir:
assignee: nobody → Alexandros Frantzis (afrantzis)
milestone: none → 0.1.2
status: Triaged → In Progress
Revision history for this message
PS Jenkins bot (ps-jenkins) wrote :

Fix committed into lp:~mir-team/mir/development-branch at revision None, scheduled for release in mir, milestone Unknown

Changed in mir:
status: In Progress → Fix Committed
Changed in mir:
status: Fix Committed → Fix Released
Changed in mir (Ubuntu):
status: New → Triaged
importance: Undecided → High
Changed in mir (Ubuntu):
status: Triaged → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (5.3 KiB)

This bug was fixed in the package mir - 0.1.2+14.04.20131128.1-0ubuntu1

---------------
mir (0.1.2+14.04.20131128.1-0ubuntu1) trusty; urgency=low

  [ Kevin Gunn ]
  * New upstream release 0.1.2
    - graphics: android: improve interface for mga::DisplayDevice so its
      just concerned with rendering and posting.
    - surfaces: rename "surfaces" component to "scene".
    - surfaces, shell: Migrate Session data model from shell to surfaces.
    - graphics: change fill_ipc_package() to use real pointers.
    - mir_client_library.h: Fix typo "do and locking" should be "do any
      locking".
    - API enumerations cleanup: Remove slightly misleading *_enum_max_
      values, and replace them with more accurate plural forms.
    - test_android_communication_package: Do not expect opened fd to be >0,
      we may have closed stdin making this a valid value (LP: #1247718).
    - Update docs about running Mir on the desktop to mention new package
      ubuntu-desktop-mir.
    - offscreen: Add a display that renders its output to offscreen buffers
    - graphics: android: fix regression for hwc1.0 devices introduced in r1228
      (LP: #1252433).
    - OffscreenPlatform provides the services that the offscreen display
      needs from the Platform.
    - graphics: android: consolidate the GLContexts classes in use.
    - Fix uninitialized variable causing random drm_auth_magic test
      failures. (LP: #1252144).
    - Add a fullyish functional Udev wrapper. This currently sits in
      graphics/gbm, but will be moved to the top-level when input device
      detection migrates.
    - Add resizing support to example code; demo-shell and clients.
    - eglapp: Clarify messages about pixel formats (LP: #1168304).
    - Adds support to the MirMotionEvent under pointer_coordinates called
      tool_type. This will allow clients to tell what type of tool is
      being used, from mouse/finger/etc. (LP: #1252498)
    - client,frontend: Report the real available surface pixel formats to
      clients. (LP: #1240833)
    - graphics: android: 1) change hwc1.1 to make use of sync fences during
      the compositor's gl renderloop. Note that we no longer wait for the
      render to complete, we pass this responsibility to the driver and the
      kernel. 2) support nexus 10. (LP: #1252173) (LP: #1203268)
    - shell: don't publish SurfacesContainer - it can be private to shell.
    - gbm: Don't mess up the VT mode on setup failure Only restore the
      previous VT mode during shutdown if it was VT_AUTO.
    - Fix a crash due to a failed eglMakeCurrent() call when in nested mode.
    - shell: unity-mir uses shell::FocusSetter - make the header public again
    - Add resize support to client surfaces (mir::client::MirSurface).
    - graphics: android: support 'old aka 2012' nexus 7 hwc (nvidia tegra3
      SoC) better. (LP: #1231917)
    - Add resize support to *ClientBuffer classes. Now always get dimensions
      from the latest buffer package.
    - android: support driver hooks for the Mali T604 (present in nexus 10)
    - Add width and height to the protocol Buffer messages, in preparation
      for resizable surfaces.
    - surfaces, shell, logging, te...

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Changed in mir (Ubuntu):
status: Fix Committed → Fix Released
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