134464 - Enh: use xrender extension on XFree for gfx effects

Status: RESOLVED FIXED

(Core Graveyard :: GFX, enhancement, P5)

Description

[nick slussar]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020324
BuildID:    20020324

For example, pngs with alpha channel.
xrender is hardware-accelerated on some drivers (notably, nvidia non-free
drivers) which should aid a lot when operating with stuff like alpha blending.

Reproducible: Always
Steps to Reproduce:

Comment 1

[Boris Zbarsky [:bzbarsky]]

Over to compositor.

Is there a decent way to test for Xrender at runtime and use it for some things?

Comment 2

[nick slussar]

yes, there is such way, see

http://xfree86.org/current/XGetExtensionVersion.3.html

Comment 3

[nick slussar]

and also there is XRenderQueryExtension, see
/usr/X11R6/include/X11/extensions/Xrender.h

Comment 4

[Tiger Feng]

Bug 130123 has had a prototype patch related to Xrender.
But it is only used in font & AA aspect.
And it is short of runtime checking yet.

Comment 5

[basic]

status?

Comment 6

[Ilya Konstantinov]

This bug is actually equivalent to bug 243146, where the real work on 
RENDER-enabled image rendering takes place. You better check it (bug 243146) 
for status. 
 
Shall we make this bug a dup of bug 243146? 

Comment 7

[Jeff Muizelaar [:jrmuizel]]

This was fixed a long time ago.