Compiz Porting

Filed under: Compiz, Ubuntu

I’m really starting to get the hang of this plugin porting stuff. I’ve got ports of the awesome wall and snap plugins from beryl available for compiz git. I started out with a straight port, pulling things from beryl-core into the plugin where possible to make things work. I’ve now started actually changing the plugins to avoid this. This is all great practice for writing a replacement dbus plugin.

On that note, does anyone know of a program that provides a dbus interface and doesn’t use the glib or Qt bindings? I need one that uses the straight C API.

Posted on February 23, 2007 |

6 Responses to “Compiz Porting”

1 daniels - February 23, 2007 2:43 am

The X server and sample config client both use the low-level C API.

2 Xtophe - February 23, 2007 4:12 am

Hello

The VLC D-bus interface (only in svn trunk) and the mechanism to have only one VLC running are done with the C API of dbus from dbus/dbus.h

http://trac.videolan.org/vlc/browser/trunk/modules/control/dbus.c
http://trac.videolan.org/vlc/browser/trunk/modules/control/dbus.h
http://trac.videolan.org/vlc/browser/trunk/src/libvlc-common.c

hth,

Xtophe

3 Travis - February 23, 2007 4:22 am

Awesome, that is exactly what I was looking for. It even does introspection. That’s the main reason I’m redoing compiz’s dbus plugin. :)

Thanks.

4 Quentin - February 23, 2007 9:10 am

Hi,
I’ve seen your post on the Ubuntu planet, and it made me wonder about something:
Beryl’s code is under the GPL license.
Compiz’s code is under the MIT license.

So how can you port code (plugins) that are under the GPL to a software (Compiz) under the MIT license?
Do you let your code under the GPL license?
Then, according to the GPLv2, can they mix?

Thanks!
Quentin

5 William Lachance - February 23, 2007 11:41 am

Also see “Using the DBUS C API”:

http://www.matthew.ath.cx/misc/dbus

6 Travis - February 23, 2007 4:28 pm

Quentin: The core of compiz is MIT, like you say. The advantage of this is that you can write plugins using any license you want, even something closed source.

William: Thanks, that looks really helpful.

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