From dcb196d45a00fe54ca412ba500e22547de2b2a65 Mon Sep 17 00:00:00 2001
From: Eduardo Bart <edub4rt@gmail.com>
Date: Fri, 20 Apr 2012 10:32:21 -0300
Subject: [PATCH] minor opengl1 optimization

---
 src/framework/graphics/painterogl1.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/framework/graphics/painterogl1.cpp b/src/framework/graphics/painterogl1.cpp
index ccfcf0a1..2e6d7882 100644
--- a/src/framework/graphics/painterogl1.cpp
+++ b/src/framework/graphics/painterogl1.cpp
@@ -192,6 +192,9 @@ void PainterOGL1::setProjectionMatrix(const Matrix3& projectionMatrix)
 
 void PainterOGL1::setTextureMatrix(const Matrix2& textureMatrix)
 {
+    // avoid re-updating texture matrix
+    if(m_textureMatrix == textureMatrix)
+        return;
     m_textureMatrix = textureMatrix;
     updateGlTextureMatrix();
 }