improved performance using my own tga load function always instead of QImage

improved Profiler

QtMeshViewer/Header/Profiler.h

@@ -2,9 +2,10 @@
 
 #ifdef _DEBUG
 	#include <QElapsedTimer.h>
+	#include <QString>
 	#include <iostream>
-	#define TIC Profiler::getInstance().startTimer();
-	#define TOC Profiler::getInstance().takeTime();
+	#define TIC(val) Profiler::getInstance().startTimer(val);
+	#define TOC(val) Profiler::getInstance().takeTime(val);
 
 	class Profiler
 	{
@@ -21,16 +22,17 @@
 			return instance;
 		}
 
-		void startTimer() {
+		void startTimer(QString position = "") {
+			std::cout << "from: " << position.toStdString() << std::endl;
 			timer.restart();
 		};
 
-		void takeTime() {
-			std::cout << "time elapsed: " << timer.elapsed() << std::endl;
+		void takeTime(QString position = "") {
+			std::cout << "to: "<< position.toStdString() << " time elapsed: " << timer.elapsed() << std::endl;
 		};
 	};
 
 #else
-	#define TIC
-	#define TOC
+	#define TIC(val)
+	#define TOC(val)
 #endif

QtMeshViewer/Header/tga.h

@@ -3,12 +3,11 @@
 #include <QImage>
 #include <QColor>
 
+#include "..\Header\Profiler.h"
 
 QImage loadTga(QString filePath, bool &success)
 {
 	QImage img;
-	if (!img.load(filePath))
-	{
 
 	// open the file
 	std::fstream fsPicture(filePath.toStdString().c_str(), std::ios::in | std::ios::binary);
@@ -133,7 +132,7 @@ QImage loadTga(QString filePath, bool &success)
 	}
 
 	fsPicture.close();
-	}
+
 	success = true;
 	return img;
 }

QtMeshViewer/Source/MshFile.cpp

@@ -3,6 +3,8 @@
 #include "..\Header\OutputDevice.h"
 #include <QColor>
 
+#include "..\Header\Profiler.h"
+
 // helper function to save data from file to any variable type
 #define F2V(variableName) reinterpret_cast<char*>(&variableName)
 
@@ -278,7 +280,6 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 				curMat->flags[i] = (std::uint8_t)(flag << (7 - i)) >> 7;
 
 			curMat->transparent = curMat->flags[2] || curMat->flags[3] || curMat->flags[4] || curMat->flags[6] || curMat->rendertype == 4;
-
 		}
 
 		// texture 0
@@ -310,7 +311,6 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 
 			if (!m_materials->back().tx1d.isEmpty())
 				loadTexture(m_materials->back().texture1, m_filepath, m_materials->back().tx1d);
-
 		}
 
 		// texture 2
@@ -719,6 +719,7 @@ void MshFile::readUV(Segment * dataDestination, std::streampos position)
 void MshFile::loadTexture(QOpenGLTexture *& destination, QString filepath, QString& filename)
 {
 	bool loadSuccess(false);
+
 	QImage img = loadTga(filepath + "/" + filename, loadSuccess);
 
 	if (!loadSuccess)

QtMeshViewer/Source/OglViewerWidget.cpp

@@ -428,8 +428,12 @@ void OglViewerWidget::setAmbCoef(double value)
 void OglViewerWidget::setHeadlight(bool value)
 {
 	m_light.headlight = value;
-	if (m_lightOn)
+
+	if (m_lightOn && value)
+	{
+		updateLightPosition();
 		update();
+	}
 }
 
 void OglViewerWidget::setBackfaceCulling(bool value)