[Cogl] Release Cogl 1.11.2 (snapshot)
Robert Bragg
robert at sixbynine.org
Wed Aug 15 09:58:36 PDT 2012
Good news, everyone!
Our first development snapshot on the road to 1.12 (1.11.2) is now available:
LATEST NEWS
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Cogl 1.11.2 2012-08-14
• List of changes since Cogl 1.10.0
» Adds cogl_framebuffer_{fill,stroke}_path APIs consistent with
other Cogl drawing APIs that replace cogl_path_fill/stroke().
» Switch from using glib types such as guint32/guint16/guint8 to
using equivalent stdint.h types.
» Adds a micro-benchmark for the journal
» Optimized the matrix stack so we can take immutable references
of a matrix stack for logging into the journal more efficiently
than having to copy large matrices for each journaled rectangle.
» Added COGL_VERSION_{MAJOR,MINOR,MICRO} macros and
COGL_VERSION_CHECK macros for applications to test what version
of Cogl they are compiled against.
» Allow creation of non power of two (npot) CoglTexture2D textures
with only basic npot support, not including repeating or mipmap
support.
» Enable use of the GL_STREAM_DRAW buffer update hint on GLES 2.0
» Fix building Cogl with --disable-gl
» Added support for the WebOS version of SDL which supports access
to GLES 1.1 and GLES 2.0
» Adds cogl_matrix_init_translation to provide a more efficient
way to initialize a matrix representing a translation without
need to multiply matrices.
» Various documentation fixes for CoglQuaternion and CoglEular
» Updates for the MSVC build
» Added GPU architecture detection capabilities so we can
differentiate drivers based on the hardware vendor, and the
actual architecture of the GPU, such as deferred vs immediate
mode.
» Fix framebuffer initialization to ensure swaps are throttled by
default.
» Fix flushing of the depth state for some cases.
» Ported test-atlas-migration to be a standalone Cogl test
» Added GLES 2.0 API integration support so that existing GLES 2.0
based code can easily be integrated within Cogl based
applications. For example this is being used by webkit-clutter to
add WebGL support.
» Added an optional libcogl-gles2 sub-library that provides a full
GLES 2.0 api api to really lower the barrier as much as possible
for being able to integrate existing GLES 2.0 based code into
Cogl applications.
» Adds a Cogl GLES 2.0 Gears example application to test the GLES
2.0 integration support.
» Fix a bug with disabling of Cogl's debugging features.
» Added api to directly convert a Eular to a Quaternion.
» Improve the wireframe debug option to work when a vertex shader
is in use.
» Added support for SDL2 which supports GLES 2.0
» Support the original GLSL extensions which had some different
function names.
» Avoid using eglGetProcAddress for core symbols which isn't allowed
by the EGL spec and causes problems on Android.
» Adds cogl_android_bitmap_new_from_asset() API to load images from
Android assets.
» Adds support for resizable onscreen framebuffers.
» Avoids implicitly including the EGL headers when including cogl.h
» Adds cogl.conf and environment variables to allow disabling the
use of specific GL extensions; for example if the implementation
is known to be buggy on a given system.
• List of bugs fixed since Cogl 1.10.0
#660617 - Porting of clutter tests
#672533 - Quartz image option causes compile error
#673137 - Grab the current window -> Screenshot is mirrored
#674208 - [PATCH] disable sub-buffer copies on software Mesa
#675119 - unable to build the latest version due to two bugs
#677078 - GLSL detection not working for Intel GMA3150 chipset
#678316 - remove unneeded check for libdrm
#680124 - Quartz Image option , memory not zeroed before loading?
#681285 - Support building with automake 1.12.x
Many thanks to:
Neil Roberts
Robert Bragg
Damien Lespiau
Chun-wei Fan
Tomeu Vizoso
Carles Ferrando
Chao-Hsiung Liao
Bruno Brouard
Christian Kirbach
Daniel Mustieles
Fran Diéguez
Gil Forcada
Marek Černocký
Matej Urbančič
Yaron Shahrabani
Мирослав Николић
Adel Gadllah
Alexander Shopov
Andika Triwidada
Antoine Jacoutot
Daniel Nylander
Gabor Kelemen
Hajime Taira
Ihar Hrachyshka
Jordi Serratosa
Kjartan Maraas
Krishnababu Krothapalli
Kristjan SCHMIDT
Luca Bruno
Mario Blättermann
Nilamdyuti Goswami
Rajesh Ranjan
Rico Tzschichholz
Rūdolfs Mazurs
Sasi Bhushan Boddepalli
Sjoerd Simons
Stef Walter
Tobias Endrigkeit
Yinghua Wang
fenghelong
Κωνσταντίνος Χόρτης
FETCHING THE RELEASE
-------------------------------------------------------------------------------
Tarballs can be downloaded from:
http://download.gnome.org/sources/cogl/1.11/
SHA256 Checksum:
84fb950127dec14ae76d1bdc531f4e2a791f4206f0d0c75ce4606a8b7ea6ff62
cogl-1.11.2.tar.bz2
Additionally, a git clone of the source tree:
git clone git://git.gnome.org/cogl
will include a signed 1.11.2 tag which points to a commit named:
bc305b1150f7709a977be425bf492526da0e11ce
which can be verified with:
git verify-tag 1.11.2
and can be checked out with a command such as:
git checkout -b build 1.11.2
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:
• GLib ≥ 2.28.0
• 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/1.11
The experimental 2.0 API is documented here:
http://docs.clutter-project.org/docs/cogl-2.0-experimental/1.11
RELEASE NOTES
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- 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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