This copies over the files generated from mesa/src/mesa/glapi. There's
a corresponding mesa commit that makes it easy to generate the glapi files
straight into the xserver tree when the XML definitions change.
The only few files that are copied from mesa but aren't generated are
glapi.[ch] and glthread.[ch]. Everything in there is technically DRI
driver API and the whole setup is still a bit fragile, but it's not a new
problem.
The --with-mesa-source configure option is still around since other
parts of the server (XGL and DMX - grep for MESA_SOURCE) need that,
but for common case of building with GLX and AIGLX support, that
option is no longer needed.
The first fbconfig which has a depthbuffer > 0 and doublebuf is choosen
when associating fbconfigs with the visuals, indepenent of stencil bits.
This happens to work ok on intel as there all fbconfigs with a
depthbuffer > 0 also have stencil bits.
This patch fixes this by first trying to get a fbconfig for default X visuals
with both stencilbuf, depthbuf and doublebuffering, and if that fails fallback
to trying to get one with only a depthbuf and doublebuffering.
I don't think this is the 100% correct answer as I get log spam saying
(EE) DoSwapInterval: cx = 0x98b8998, GLX screen = 0x96dd780
(EE) AIGLX: cx->pGlxScreen->swapInterval == NULL
but thats better than X exiting in my book.
I'm not sure this the complete proper solution, perhaps it should explicitly fill
in ever field.
This at least makes glxinfo on glcore return sensible information, it doesn't make
gears work yet though.
Get rid of glcontextmodes.[ch] from build, rename __GlcontextModes to
__GLXcontext. Drop all #includes of glcontextmodes.h and glcore.h.
Drop the DRI context modes extension.
Add protocol code to DRI2 module and load DRI2 extension by default.
With recent mesa HEAD, the glapi sources used only in the xserver glx
module are carried in the mesa tree. Previously, these were generated
separately and committed to the xserver tree.
The build is changed to symlink these files like the other mesa sources.
This reduces the chance for mismatches between mesa's glX API and the
xserver's glX API.
RISC chips that trap on unaligned loads and stores need to
define __GLX_ALIGN64. This used to get added to the cflags
in the old *.cf files but it no longer does in the modular
X server.
Also, Alpha needs to pass -mieee to the compiler as well.
This is a simple backport of a patch that debian, and probably other
distributions, have been applying forever. To the best of my
knowledge the patch was written by Jurij Smakov. See Debian bug
number #388125.
I just checked and this has been rotting for more than a year in
freedesktop bugzilla as #8392.
Signed-off-by: David S. Miller <davem@davemloft.net>