From: subhransu mohanty <sub.mohanty@samsung.com>
Date: Mon, 28 Oct 2019 07:17:22 +0000 (+0900)
Subject: vector/rasterizer: safe rletask reset.
X-Git-Tag: accepted/tizen/unified/20191114.123438~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F73%2F216573%2F1;p=platform%2Fcore%2Fuifw%2Flottie-player.git

vector/rasterizer: safe rletask reset.

check if the previous task is finished before reseting the task .
if the previous task is not finished may lead to inconsistant task state.

Change-Id: I934636745fcc87474d511eaa1c7f9a44027f8d60
---

diff --git a/src/vector/vraster.cpp b/src/vector/vraster.cpp
index 80e7537..fb340db 100644
--- a/src/vector/vraster.cpp
+++ b/src/vector/vraster.cpp
@@ -275,18 +275,27 @@ public:
         }
         _cv.notify_one();
     }
-    VRle &get()
+    void wait()
     {
-        if (!_pending) return _rle;
+        if (!_pending) return;
+
+        {
+            std::unique_lock<std::mutex> lock(_mutex);
+            while (!_ready) _cv.wait(lock);
+        }
 
-        std::unique_lock<std::mutex> lock(_mutex);
-        while (!_ready) _cv.wait(lock);
         _pending = false;
+    }
+
+    VRle &get()
+    {
+        wait();
         return _rle;
     }
 
     void reset()
     {
+        wait();
         _ready = false;
         _pending = true;
     }