From 69a90b5bfebc3488cfc18c8ee5f0937b0e18e87e Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Sat, 8 Aug 2015 17:22:05 +0200
Subject: [PATCH] gl/syncmeta: implement synchronisation without glFenceSync

Uses glFinish as that's the best we have for lesser OpenGL versions.
---
 gst-libs/gst/gl/gstglsyncmeta.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gst-libs/gst/gl/gstglsyncmeta.c b/gst-libs/gst/gl/gstglsyncmeta.c
index 23806aa514..f680353fb0 100644
--- a/gst-libs/gst/gl/gstglsyncmeta.c
+++ b/gst-libs/gst/gl/gstglsyncmeta.c
@@ -69,9 +69,11 @@ _set_sync_point (GstGLContext * context, GstGLSyncMeta * sync_meta)
       gl->DeleteSync (sync_meta->glsync);
     }
     sync_meta->glsync = gl->FenceSync (GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
+    gl->Flush ();
     GST_LOG ("setting sync object %p", sync_meta->glsync);
+  } else {
+    gl->Finish ();
   }
-  gl->Flush ();
 }
 
 void