From abd9070e9061a9cf760b547087b171b35ec49014 Mon Sep 17 00:00:00 2001
From: C-Fu <carsten.fuhrmann@rwth-aachen.de>
Date: Fri, 20 Jan 2017 11:18:48 +0100
Subject: [PATCH] Read the material name and save it, Shorten transparency
 evaluation, Need to: - read in the data values, - save the texture name
 somewhere else, - use the data :D

---
 QtMeshViewer/Source/MshFile.cpp | 72 ++++++++++++++-------------------
 1 file changed, 31 insertions(+), 41 deletions(-)

diff --git a/QtMeshViewer/Source/MshFile.cpp b/QtMeshViewer/Source/MshFile.cpp
index 1325862..906e083 100644
--- a/QtMeshViewer/Source/MshFile.cpp
+++ b/QtMeshViewer/Source/MshFile.cpp
@@ -217,7 +217,24 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 {
 	for (auto& it : chunkList)
 	{
-		// TODO: don't load default texture, make it NULL
+	    // name
+        if (!strcmp("NAME", it->name))
+        {
+			m_file.seekg(it->position);
+			char* buffer = new char[it->size + 1];
+			*buffer = { 0 };
+			m_file.read(buffer, it->size);
+			m_materials->back().name = buffer;
+			delete[] buffer;
+        }
+        // TODO: read the data information
+        // data
+        else if(!strcmp("DATA", it->name))
+        {
+            
+            
+        }
+		// TODO: use diffuse color instead of default texture
 		//TODO: get information from flags
 		// attributes
 		if (!strcmp("ATRB", it->name))
@@ -235,10 +252,9 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 			{
 				std::cout << "specular" << std::endl;
 			}
-			// additive transparency
-			if ((flag << 1) >> 7)
+			// additive transparency || hard edged transparency || double-sided transparency || single-sided transparency
+			if ((flag << 1) >> 7 || (flag << 3) >> 7 || (flag << 4) >> 7 || (flag << 5) >> 7)
 			{
-				std::cout << "additive transparency" << std::endl;
 				m_materials->back().transparent = true;
 			}
 			// per-pixel lighting
@@ -246,24 +262,6 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 			{
 				std::cout << "per-pixel lighting" << std::endl;
 			}
-			// hard-edged transparency
-			if ((flag << 3) >> 7)
-			{
-				std::cout << "hard-edged transparency" << std::endl;
-				m_materials->back().transparent = true;
-			}
-			// double-sided transparency
-			if ((flag << 4) >> 7)
-			{
-				std::cout << "double-sided transparency" << std::endl;
-				m_materials->back().transparent = true;
-			}
-			// single-sided transparency
-			if ((flag << 5) >> 7)
-			{
-				std::cout << "single-sided transparency" << std::endl;
-				m_materials->back().transparent = true;
-			}
 			// glow
 			if ((flag << 6) >> 7)
 			{
@@ -274,10 +272,9 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 			{
 				std::cout << "emissive" << std::endl;
 			}
-
 		}
 
-		// texture name
+		// texture zero
 		else if (!strcmp("TX0D", it->name))
 		{
 			// get the texture name
@@ -285,14 +282,13 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 			char* buffer = new char[it->size + 1];
 			*buffer = { 0 };
 			m_file.read(buffer, it->size);
-			m_materials->back().name = buffer;
+			QString texName(buffer);
 			delete[] buffer;
 
-			// load the texture
-			if (m_materials->back().name.isEmpty())
-				loadTexture(m_materials->back().texture, "");
-			else
-				loadTexture(m_materials->back().texture, m_filepath + "/" + m_materials->back().name);
+			// load the texture if the name is not empty
+			// TODO: save filename for the output
+			if (!texName.isEmpty())
+				loadTexture(m_materials->back().texture, m_filepath + "/" + texName);
 		}
 	}
 }
@@ -686,20 +682,14 @@ void MshFile::readUV(Segment * dataDestination, std::streampos position)
 void MshFile::loadTexture(QOpenGLTexture *& destination, QString filepath)
 {
 	bool loadSuccess(false);
-	QImage img;
-
-	if (filepath.isEmpty())
-	{
-		loadSuccess = true;
-		img = QImage(1, 1, QImage::Format_RGB32);
-		img.fill(Qt::red);
-	}
-	else
-		img = loadTga(filepath, loadSuccess);
+	QImage img = loadTga(filepath, loadSuccess);
 
 	if (!loadSuccess)
+	{
 		emit sendMessage("WARNING: texture not found or corrupted: " + m_materials->back().name, 1);
-
+		return;
+	}
+	
 	// Load image to OglTexture
 	QOpenGLTexture* new_texture = new QOpenGLTexture(img.mirrored());