From cf2b5d030c43dc90d0c8b96916d5c2d05deb873b Mon Sep 17 00:00:00 2001
From: "konstantin.matveyev" <konstantin.matveyev@eligovision.ru>
Date: Sun, 17 Sep 2017 18:48:32 +0300
Subject: [PATCH] tellg call removed from StreamOperator's checkStream
 function, because reading of files (readNodeFile etc.) with tellg on 'every
 iter' is approximately 100 times slower on Emscripten platform

---
 src/osgDB/StreamOperator.cpp | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/src/osgDB/StreamOperator.cpp b/src/osgDB/StreamOperator.cpp
index a1ee9a749..d46eef4e9 100644
--- a/src/osgDB/StreamOperator.cpp
+++ b/src/osgDB/StreamOperator.cpp
@@ -16,21 +16,14 @@
 
 using namespace osgDB;
 
-static long long prev_tellg = 0;
-
 void InputIterator::checkStream() const
 {
     if (_in->rdstate()&_in->failbit)
     {
         OSG_NOTICE<<"InputIterator::checkStream() : _in->rdstate() "<<_in->rdstate()<<", "<<_in->failbit<<std::endl;
         OSG_NOTICE<<"                               _in->tellg() = "<<_in->tellg()<<std::endl;
-        OSG_NOTICE<<"                               prev_tellg = "<<prev_tellg<<std::endl;
         _failed = true;
     }
-    else
-    {
-        prev_tellg = _in->tellg();
-    }
 }
 
 void InputIterator::readComponentArray( char* s, unsigned int numElements, unsigned int numComponentsPerElements, unsigned int componentSizeInBytes)