[PULL xserver 1.10] GLX backport

[Adam Jackson]

This is a rather large pull request for a stable series, I admit, but I 
think it's worthwhile.  I've tested it on Intel GM45 with Gnome 3 and 
everything works as before.  I've also compared the clutter conformance 
test runs from clutter 1.6.12 before and after this series, on the same 
hardware.  Both before and after all clutter tests pass in direct GLX 
contexts.  However, for indirect GLX:

synephrine:~/fedora/clutter/clutter-1.6.12/tests/conform% diff -u 
pre-1.10-iglx post-1.10-iglx | grep -- -FAIL
-FAIL: wrappers/test-texture-fbo
-FAIL: wrappers/test-cogl-backface-culling
-FAIL: wrappers/test-cogl-materials
-FAIL: wrappers/test-cogl-readpixels
-FAIL: wrappers/test-cogl-texture-mipmaps
-FAIL: wrappers/test-cogl-sub-texture
-FAIL: wrappers/test-cogl-texture-pixmap-x11
-FAIL: wrappers/test-cogl-texture-get-set-data
-FAIL: wrappers/test-cogl-atlas-migration
-FAIL: wrappers/test-cogl-viewport
-FAIL: wrappers/test-cogl-offscreen
synephrine:~/fedora/clutter/clutter-1.6.12/tests/conform% diff -u 
pre-1.10-iglx post-1.10-iglx | grep -- +FAIL | wc -l
0
synephrine:~/fedora/clutter/clutter-1.6.12/tests/conform% grep FAIL 
post-1.10-iglx | wc -l
0

So, fixes all existing failures, and introduces no new failures.  I've 
trimmed off the more trivial changes to glx/ from master, this should 
just be the functional bits.

---

The following changes since commit 49afcc76a1c799e18931cc762431975c5c059437:

   XQuartz: Bump bundle version to 2.6.2 (2011-04-04 09:38:35 -0700)

are available in the git repository at:
   ssh://people.freedesktop.org/~ajax/xserver.git server-1.10-iglx

Adam Jackson (8):
       glx: Remove unused _glapi_get_proc_offset and friends
       glx: Simplify _glapi_check_multithread
       glx: Remove unused _glapi_get_proc_name
       glx: Add texbuffer2 support to swrast
       glx: Remove noop dispatch table
       glx: Lobotomize _glapi_get_proc_address
       glx: Fix _glapi_add_dispatch
       glx: Reimplement context tags

  glx/Makefile.am          |    1 -
  glx/glapi.c              |  558 +----
  glx/glapi.h              |   28 -
  glx/glapitemp.h          | 6655 
----------------------------------------------
  glx/glxcmds.c            |   98 +-
  glx/glxdriswrast.c       |    8 +
  glx/glxext.c             |   31 -
  glx/glxserver.h          |    7 -
  hw/xquartz/GL/indirect.c |    9 -
  9 files changed, 65 insertions(+), 7330 deletions(-)
  delete mode 100644 glx/glapitemp.h

- ajax