On 01/24/2013 06:59 PM, Zack Rusin wrote:
Only drivers supporting DRI2 version>=4 support GLX_INTEL_swap_event.
So lets mark it as such otherwise applications which use this extension
(i.e. everything based on Clutter, e.g. gnome-shell) break horribly on
drivers supporting DRI2 versions only up to 3.

Note: This is a candidate for the 9.0 branch.

Signed-off-by: Zack Rusin<za...@vmware.com>
---
  src/glx/dri2_glx.c |    5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 1b3cf2b..a51716f 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -1062,8 +1062,9 @@ dri2BindExtensions(struct dri2_screen *psc, const 
__DRIextension **extensions)
     __glXEnableDirectExtension(&psc->base, "GLX_MESA_swap_control");
     __glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read");

-   /* FIXME: if DRI2 version supports it... */
-   __glXEnableDirectExtension(&psc->base, "GLX_INTEL_swap_event");
+   if (psc->dri2->base.version>= 4) {
+      __glXEnableDirectExtension(&psc->base, "GLX_INTEL_swap_event");
+   }

     if (psc->dri2->base.version>= 3) {
        const unsigned mask = psc->dri2->getAPIMask(psc->driScreen);

Other people are more familiar with this than me, but
Reviewed-by: Brian Paul <bri...@vmware.com>
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