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2008-04-01 Matthew Allum <mallum@openedhand.com>

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* clutter/clutter-backend.c:
        * clutter/glx/clutter-backend-glx.c:
        * clutter/glx/clutter-stage-glx.c:
        Allow NULL to be passed to _clutter_backend_ensure_context
        which essentially clears GL context. This is hooked into stage
        unrealisation.  Isn't yet quite bulletproof.
        Fixes issues with gtk-embed crasher (thanks to Neil).
This commit is contained in:
Matthew Allum
2008-04-01 14:04:46 +00:00
parent d04fd6d620
commit c158a93a84
4 changed files with 47 additions and 12 deletions
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18
clutter/clutter-backend.c
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@ -184,15 +184,25 @@ _clutter_backend_ensure_context (ClutterBackend *backend, ClutterStage *stage)
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
g_return_if_fail (CLUTTER_IS_STAGE (stage));
if (stage != current_context_stage)
if (stage != current_context_stage || !CLUTTER_ACTOR_IS_REALIZED(stage))
{
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (!CLUTTER_ACTOR_IS_REALIZED(stage))
stage = NULL;
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (G_LIKELY(klass->ensure_context))
klass->ensure_context (backend, stage);
/* FIXME: With a NULL stage and thus no active context it may make more
* sense to clean the context but then re call with the default stage
* so at least there is some kind of context in place (as to avoid
* potential issue of GL calls with no context)
*/
current_context_stage = stage;
CLUTTER_SET_PRIVATE_FLAGS (stage, CLUTTER_ACTOR_SYNC_MATRICES);
if (stage)
CLUTTER_SET_PRIVATE_FLAGS (stage, CLUTTER_ACTOR_SYNC_MATRICES);
}
}