fix(render): don't need redraw when nothing be changed

alibaba · Feb 20, 2020 · 0f16185 · 0f16185
1 parent f823d27
commit 0f16185
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/framework/render/video/glRender/CV420PProgramContext.cpp b/framework/render/video/glRender/CV420PProgramContext.cpp
@@ -176,6 +176,11 @@ int CV420PProgramContext::updateFrame(std::unique_ptr<IAFFrame> &frame) {
         }
     }
 
+    if (frame == nullptr && !mProjectionChanged && !mRegionChanged && !mCoordsChanged) {
+        //frame is null and nothing changed , don`t need redraw. such as paused.
+        return -1;
+    }
+
     if (mProjectionChanged) {
         updateUProjection();
         mProjectionChanged = false;