[Xquartz-dev] 2.4.0_beta1
William Davis
frstan at bellsouth.net
Mon Feb 23 15:40:52 PST 2009
crashed right after cmd-opt-a
WD
On Feb 23, 2009, at 1:52 PM, Jeremy Huddleston wrote:
> Hi everyone. I'm proud to announce that 2.4.0_beta1 of XQuartz is
> ready. With this release, we've jumped to the 1.6 server branch,
> updated libX11, libxcb, pixman and various others from their rc
> versions to final release versions, and integrated massive
> improvements to our GLX support thanks to George's hard work.
>
> A list of all changes since 2.3.2.1 can be seen in our ChangeLog:
> http://xquartz.macosforge.org/trac/wiki/ChangeLog
>
> And here's the dmg:
> http://static.macosforge.org/xquartz/downloads/X11-2.4.0_beta1.dmg
>
> For those that are interested, the source code for our libGL is
> available in svn (see our websvn interface at http://xquartz.macosforge.org/trac/changeset)
> or from http://xquartz.macosforge.org/downloads/src.
>
> The X11 server is seeing massive changes to its input handling to
> support multiple devices and multitouch. As such, the 1.6 server
> branch has seen a fair number of changes as a stepping stone toward
> that end. Unfortunately, all the kinks have not been worked out of
> input handling, so most of the known regressions are related to input:
>
> * capslock doesn't work
> * a possible race condition can cause xmodmap to ruin your key
> mappings
> * workaround: move your ~/.Xmodmap file somewhere else and load it
> after X has already started
> * sometimes X may stop responding to your mouse
> * George has seen this, but I haven't. If someone can help with
> reproducibility, I'd be grateful
>
> George also has some note regarding the GLX improvement (we now
> support GLX-1.4):
>
> AppleSGLX Release Notes
>
> o OpenGL Support
>
> AppleSGLX supports the same version of OpenGL as Leopard (OpenGL 2.1).
> Many extensions from the OpenGL framework are now builtin.
>
> This adds support for GLSL, and a variety of other features.
>
> o Thread Support
>
> Thread support has been improved since the libGL in XQuartz 2.3.2.1.
>
> o GLX 1.4 Support
>
> The GLX 1.3 and 1.4 functions should all work with a few exceptions
> as outlined in this document.
>
> o glXMakeContextCurrent (a GLX 1.3 feature)
>
> glXMakeContextCurrent should work with the readable drawable. The
> OpenGL functions: glReadPixels, glCopyPixels, and glCopyColorTable,
> should use the readable drawable if it's different than the rendering
> drawable.
>
> o glXGetProcAddress (a GLX 1.4 feature and ARB extension)
>
> glXGetProcAddress should work and allow getting the address of any
> extension functions you may need from the X11 libGL, or OpenGL
> framework
> libGL. Previous versions of the X11 libGL didn't allow getting the
> newer
> OpenGL framework addresses.
>
> o GLXPixmaps
>
> New support for GLXPixmaps works well with mixed X11 and OpenGL
> drawing
> operations. You can create them using glXCreateGLXPixmap or
> glXCreatePixmap.
>
> o GLXPbuffers
>
> Support for GLXPbuffers has been added. These are drawables that are
> not possible to render to with X11, which is allowed by the spec.
> A GLXPbuffer will never generate a clobber event, however
> glXSelectEvent and glXGetSelectedEvent should operate normally.
>
> Clobber events are not generated due to low-level architectural
> differences. The contents of your pbuffers will not be clobbered.
>
> o Shared Contexts
>
> Due to basic low-level architectural differences the usage of shared
> contexts requires a similar visual or GLXFBConfig be used in the
> creation of a shared context. It's best if you specify the same
> visual. This is due to a CGL design difference, and not something
> that is easily worked around.
>
> o Indirect
>
> The X server supports indirect fairly well, so OpenGL applications
> can be run remotely and displayed by XQuartz. This means you can run
> applications from a remote host on an XQuartz X server.
>
> AppleSGLX does not support indirect rendering. Any indirect context
> created will appear to glXIsDirect as an indirect context, but it
> does not actually support indirect rendering to a remote X server.
>
> AppleSGLX supports GLXPixmaps and GLXPbuffers with direct and indirect
> contexts, though they are all direct contexts by definition (see
> above).
>
>
>
> _______________________________________________
> Xquartz-dev mailing list
> Xquartz-dev at lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/xquartz-dev
William Davis
frstanATbellsouthDOTnet
Mac OS X.5.6 Darwin 9.5.0
XQuartz 2.3.2 (xorg-server 1.4.2-apple31)
Mac Mini Intel Duo @ 1.86 GHz
Mundus vult decepi, ego non
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