[Cogl] Release Cogl 1.15.10 (snapshot)

Mon Sep 2 11:22:14 PDT 2013

Good news, everyone!

A new Cogl snapshot (1.15.10) is now available:

LATEST NEWS
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Cogl 1.15.10                                                       2013-09-02

  • List of changes since Cogl 1.15.8

  » Added API to set the onscreen template on a CoglDisplay outside of
    the constructor.
  » Added public API to configure the layout of displays when using
    the KMS winsys.
  » Added a cogl_point_coord builtin variable for snippets which can
    be used to render point sprites in more dynamic ways.
  » cogl_texture_new_with_size now returns NULL on failure. This
    behaviour was accidentally changed in 1.14.0.
  » Fixed a problem with setting the precision specifiers on GLES2
    which was causing a lot of problems with the latest Mesa.
  » Added a “webgl” driver to manage the differences in GLES2 when
    compiling with emscripten.
  » Fixed a bug with paths which was causing Clutter's texture-fbo
    test to crash.
  » Some issues with introspecting the cogl-pango API were fixed.
  » Added an example using point sprites.
  » Build fixes for building with MinGW32.
  » Updates to the MSVC build files.
  » Documentation fixes to the snippets API.

  • Gnome Bugzilla bugs closed since 1.15.8:

  #705837 - kms: add public API to override the default configuration
            of outputs

Many thanks to:

  Chun-wei Fan
  Robert Bragg
  Jasper St. Pierre
  Damien Lespiau
  Giovanni Campagna

FETCHING THE RELEASE
-------------------------------------------------------------------------------

Tarballs can be downloaded from:

  http://download.gnome.org/sources/cogl/1.15/

SHA256 Checksum:

  b52125fe0b1da46db159921358bee865f1da09d0fdce27af4b04297798b943d8
  cogl-1.15.10.tar.bz2

Additionally, a git clone of the source tree:
  git clone git://git.gnome.org/cogl

will include a signed 1.15.10 tag which points to a commit named:
  c855eb44238fcfe0998ab3847adf846f1a6215c5

which can be verified with:
  git verify-tag 1.15.10

and can be checked out with a command such as:
  git checkout -b build 1.15.10

DESCRIPTION
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Cogl is a small open source library for using 3D graphics hardware for
rendering. The API departs from the flat state machine style of OpenGL and is
designed to make it easy to write orthogonal components that can render without
stepping on each others toes.

As well as aiming for a nice API, we think having a single library as opposed
to an API specification like OpenGL has a few advantages too; like being
able to paper over the inconsistencies/bugs of different OpenGL
implementations in a centralized place, not to mention the myriad of OpenGL
extensions. It also means we are in a better position to provide utility
APIs that help software developers since they only need to be implemented
once and there is no risk of inconsistency between implementations.

Having other backends, besides OpenGL, such as drm, Gallium or D3D are
options we are interested in for the future.

REQUIREMENTS
-------------------------------------------------------------------------------

Cogl currently only requires:

  • OpenGL ≥ 1.3 (or 1.2 + multitexturing), or OpenGL ES 2.0 (or 1.1)
  • GLX, AGL, WGL or an EGL implementation

Cogl also has optional dependencies:

  • GLib ≥ 2.32.0
     - for gtype integration
  • GDK-Pixbuf ≥ 2.0
     - for image loading
  • Cairo ≥ 1.10
     - for debugging texture atlasing (debug builds only)

The optional Cogl Pango library requires:
  • Cairo ≥ 1.10
  • PangoCairo ≥ 1.20

The optional Cogl GStreamer library requires:

  • GStreamer 1.0

On X11, Cogl depends on the following extensions

  • XComposite ≥ 0.4
  • XDamage
  • XExt
  • XFixes ≥ 3

For the Wayland backend, Cogl requires:
  • Wayland ≥ 1.0.0

When running with OpenGL, Cogl requires at least version 1.3
or 1.2 with the multitexturing extension. However to build Cogl
you will need the latest GL headers which can be obtained from:

  http://www.khronos.org

If you are building the API reference you will also need:

  • GTK-Doc ≥ 1.13

If you are building the additional documentation you will also need:

  • xsltproc
  • jw (optional, for generating PDFs)

If you are building the Introspection data you will also need:

  • GObject-Introspection ≥ 0.9.5

GObject-Introspection is available from:

  git://git.gnome.org/gobject-introspection

If you want support for profiling Cogl you will also need:

  • UProf ≥ 0.3

UProf is available from:

  git://github.com/rib/UProf.git

DOCUMENTATION
-------------------------------------------------------------------------------

The 1.x stable API is documented here:
  http://developer.gnome.org/cogl/stable/
The 1.x development API is documented here:
  http://developer.gnome.org/cogl/1.15
The experimental 2.0 API is documented here:
  http://cogl3d.org/cogl2-reference/

RELEASE NOTES
-------------------------------------------------------------------------------
  - This is a development snapshot release so there are not API or ABI stability
    guarantees at this point for new APIs since the last stable release.

  - This Cogl release exports a 1.x API (For third-party Clutter
    developers to write custom actors) and an experimental 2.0 API which
    allows standalone application development.

  - Internally Clutter depends on the Cogl 2.0 experimental API so we maintain
    runtime compatibility between the 1.x API and experimental 2.0 APIs, which
    means developers can mix-and-match their use of the APIs in the same
    process.  API selection is done per-file by including a line like: '#define
    COGL_ENABLE_EXPERIMENTAL_2_0_API' before including cogl.h or clutter.h.

  - We recommend using the 2.0 API if you don't mind updating your code once in
    a while as this API evolves and stabilizes. We promise not to break the 2.0
    API during a 1.x stable cycle and hope that will encourage people to
    experiment with it and give critical feedback! For example after releasing
    1.8, the 2.0 API will be stable for 1.8.1, 1.8.2, 1.8.3 etc, but may update
    for 1.9/1.10.

  - Because we export the 1.x and 2.0 APIs from one libcogl.so the library
    versioning, and thus ABI, can only be considered as stable as our 2.0 API - 
    i.e. during a stable release 1.x cycle.

  - Please report bugs using the Cogl Bugzilla product, at:
    http://bugzilla.gnome.org/enter_bug.cgi?product=cogl
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