Move QTextStream creation out of the loop.

This saves one QObject allocation per line of an obj file (which tend to
be quite large), for the QDeviceCloseNotifier in QTextStreamPrivate.

Change-Id: Ia5762f497782ee4356c2f807dd02f9ab73eccf70
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/render/io/objloader.cpp b/src/render/io/objloader.cpp
index 87085c1de..a27ad7f21 100644
--- a/src/render/io/objloader.cpp
+++ b/src/render/io/objloader.cpp
@@ -124,12 +124,13 @@ bool ObjLoader::load(::QIODevice *ioDev, const QString &subMesh)
     Q_ASSERT(subMeshMatch.isValid());
 
     QTextStream stream(ioDev);
+    QTextStream lineStream;
     while (!stream.atEnd()) {
         QString line = stream.readLine();
         line = line.simplified();
 
         if (line.length() > 0 && line.at(0) != QChar::fromLatin1('#')) {
-            QTextStream lineStream(&line, QIODevice::ReadOnly);
+            lineStream.setString(&line, QIODevice::ReadOnly);
             QString token;
             lineStream >> token;