From 832148406a5dc68dc530ef78612b3007f003ec06 Mon Sep 17 00:00:00 2001
From: rachytski <siarhei.rachytski@gmail.com>
Date: Wed, 8 Dec 2010 01:41:14 +0200
Subject: [PATCH] empty global rect optimization.

---
 map/render_queue_routine.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/map/render_queue_routine.cpp b/map/render_queue_routine.cpp
index e29bb670b3..aad3da2298 100644
--- a/map/render_queue_routine.cpp
+++ b/map/render_queue_routine.cpp
@@ -279,6 +279,8 @@ void RenderQueueRoutine::Do()
         if ((areas[i].SizeX() != 0) && (areas[i].SizeY() != 0))
         {
           frameScreen.PtoG(m2::Inflate<double>(m2::RectD(areas[i]), 30 * m_visualScale, 30 * m_visualScale), glbRect);
+          if ((glbRect.SizeX() == 0) || (glbRect.SizeY()))
+            continue;
 
           m_threadDrawer->screen()->setClipRect(areas[i]);