Release Cogl 1.7.2 (snapshot)

[Neil Roberts <neil linux intel com>]

Good news, everyone!

A new Cogl snapshot is now available at:

  http://source.clutter-project.org/sources/cogl/1.7/
  http://download.gnome.org/sources/cogl/1.7/

SHA256 Checksum:

5688601fde53e3551d2f39bc841a0d4a877b2e237df0e5c24a35746da7b172a7  cogl-1.7.2.tar.bz2

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

will include a signed 1.7.2 tag which points to a commit named:
  3bc30603a968d7b04347eeb2d9754c045978483c

which can be verified with:
  git verify-tag 1.7.2

and can be checked out with a command such as:
  git checkout -b build 1.7.2

DESCRIPTION
-------------------------------------------------------------------------------

Cogl is a small open source library for using 3D graphics hardware to draw
pretty pictures. 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:

  • GLib ≥ 2.26.0
  • 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:

  • 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

On X11, Cogl depends on the following extensions

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

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 API is documented here:
  http://docs.clutter-project.org/docs/cogl/1.7
The experimental 2.0 API is documented here:
  http://docs.clutter-project.org/docs/cogl-2.0-experimental/1.7


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

THANKS
-------------------------------------------------------------------------------
Thanks to everyone who contributed since Cogl 1.7.0:

 Robert Bragg, Adam Jackson, Emmanuele Bassi

Happy hacking with Cogl,

Regards,
- Neil Roberts