<s>
Accelerated	O
Indirect	O
GLX	B-Device
(	O
"	O
AIGLX	B-Application
"	O
)	O
is	O
an	O
open	B-Application
source	I-Application
project	O
founded	O
by	O
Red	O
Hat	O
and	O
the	O
Fedora	O
community	O
,	O
led	O
by	O
Kristian	O
Høgsberg	O
,	O
to	O
allow	O
accelerated	O
indirect	O
GLX	B-Device
rendering	O
capabilities	O
to	O
the	O
X.Org	B-Operating_System
Server	I-Operating_System
and	O
DRI	B-Application
drivers	O
.	O
</s>
<s>
This	O
allows	O
remote	O
X	B-Operating_System
clients	O
to	O
get	O
fully	O
hardware	O
accelerated	O
rendering	O
over	O
the	O
GLX	B-Device
protocol	O
;	O
coincidentally	O
,	O
this	O
development	O
was	O
required	O
for	O
OpenGL	B-Application
compositing	B-Operating_System
window	I-Operating_System
managers	I-Operating_System
to	O
function	O
with	O
hardware	O
acceleration	O
.	O
</s>
<s>
There	O
are	O
two	O
ways	O
in	O
which	O
a	O
windowing	O
system	O
can	O
allow	O
an	O
OpenGL	B-Application
implementation	O
to	O
talk	O
to	O
the	O
graphics	O
card	O
.	O
</s>
<s>
The	O
first	O
is	O
to	O
specify	O
the	O
OpenGL	B-Application
command	O
stream	O
in	O
a	O
portable	O
network-neutral	O
manner	O
using	O
a	O
client/server	O
implementation	O
similar	O
to	O
the	O
X11	B-Operating_System
drawing	O
routines	O
.	O
</s>
<s>
This	O
method	O
,	O
used	O
by	O
AIGLX	B-Application
,	O
is	O
indirect	O
in	O
that	O
the	O
drawing	O
commands	O
are	O
sent	O
to	O
the	O
X	B-Operating_System
server	O
and	O
then	O
the	O
X	B-Operating_System
server	O
sends	O
them	O
along	O
to	O
the	O
graphics	O
card	O
.	O
</s>
<s>
The	O
second	O
way	O
,	O
which	O
is	O
at	O
the	O
base	O
of	O
Xgl	B-Application
,	O
is	O
to	O
open	O
a	O
window	O
and	O
then	O
allow	O
the	O
OpenGL	B-Application
library	O
to	O
send	O
commands	O
directly	O
to	O
the	O
graphics	O
card	O
.	O
</s>
<s>
Accelerating	O
the	O
indirect	O
OpenGL	B-Application
path	O
is	O
orthogonal	O
to	O
how	O
the	O
X	B-Operating_System
server	O
itself	O
is	O
implemented	O
,	O
but	O
it	O
has	O
the	O
side	O
effect	O
of	O
allowing	O
the	O
OpenGL	B-Application
command	O
stream	O
to	O
be	O
more	O
easily	O
captured	O
and	O
redirected	O
to	O
a	O
texture	O
.	O
</s>
<s>
This	O
allows	O
Compiz	B-Language
and	O
other	O
compositing	B-Operating_System
window	I-Operating_System
managers	I-Operating_System
to	O
be	O
built	O
on	O
top	O
of	O
a	O
traditional	O
X	B-Operating_System
server	O
with	O
a	O
small	O
extension	O
rather	O
than	O
requiring	O
a	O
full	O
Xgl	B-Application
server	O
.	O
</s>
<s>
This	O
is	O
also	O
an	O
advantage	O
over	O
DRI	B-Application
which	O
bypasses	O
the	O
compositing	O
engine	O
even	O
while	O
providing	O
hardware	O
acceleration	O
.	O
</s>
<s>
The	O
AIGLX	B-Application
project	O
was	O
merged	O
into	O
X.Org	O
and	O
has	O
been	O
available	O
with	O
X.Org	O
7.1	O
.	O
</s>
<s>
AIGLX	B-Application
needed	O
driver	O
support	O
to	O
run	O
.	O
</s>
<s>
Specifically	O
,	O
it	O
depended	O
on	O
the	O
OpenGL	B-Application
extension	O
.	O
</s>
<s>
Although	O
the	O
AIGLX	B-Application
project	O
has	O
features	O
similar	O
to	O
Xgl	B-Application
,	O
it	O
was	O
not	O
intended	O
to	O
be	O
a	O
competing	O
product	O
.	O
</s>
<s>
According	O
to	O
,	O
the	O
project	O
was	O
founded	O
in	O
part	O
because	O
Xgl	B-Application
was	O
written	O
during	O
its	O
final	O
stages	O
"	O
behind	O
closed	O
doors.	O
"	O
</s>
<s>
Xgl	B-Application
was	O
removed	O
from	O
the	O
X	B-Operating_System
Server	O
on	O
June	O
12	O
,	O
2008	O
.	O
</s>
