From 8bb387dc740734b426573f4d77dda8615d20bcf9 Mon Sep 17 00:00:00 2001
From: "Anthony J. Thibault" <tony@highfidelity.io>
Date: Wed, 23 Mar 2016 17:11:16 -0700
Subject: [PATCH] Revert GLEscrow changes

---
 libraries/gl/src/gl/GLEscrow.h | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/libraries/gl/src/gl/GLEscrow.h b/libraries/gl/src/gl/GLEscrow.h
index cf96e43e1f..357398c79b 100644
--- a/libraries/gl/src/gl/GLEscrow.h
+++ b/libraries/gl/src/gl/GLEscrow.h
@@ -71,16 +71,11 @@ public:
         }
 
         bool signaled() const {
-#if THREADED_PRESENT
             auto result = glClientWaitSync(_sync, 0, 0);
             if (GL_TIMEOUT_EXPIRED != result && GL_WAIT_FAILED != result) {
                 return true;
             }
             return false;
-#else
-            glWaitSync(_sync, 0, GL_TIMEOUT_IGNORED);
-            return true;
-#endif
         }
     };
 
@@ -208,15 +203,13 @@ public:
     // Also releases any previous texture held by the caller
     bool fetchSignaledAndRelease(T& value) {
         T originalValue = value;
-        bool fetched = false;
-        while (fetchSignaled(value)) {
-            fetched = true;
+        if (fetchSignaled(value)) {
             if (originalValue != invalid()) {
                 release(originalValue);
             }
-            originalValue = value;
+            return true;
         }
-        return fetched;
+        return false;
     }
 
     bool fetchAndReleaseWithFence(T& value, GLsync& sync) {