Changeset 3185 in orxonox.OLD for orxonox/trunk/src/material.cc

Timestamp:

Dec 15, 2004, 6:24:28 PM (20 years ago)

Author:

bensch

Message:

orxonox/trunk/src: merged trunk/importer into trunk/src again.
All conflicts resolved in favor of trunk/src.

File:

• orxonox/trunk/src/material.cc (modified) (14 diffs)

orxonox/trunk/src/material.cc

@@ -12 +12 @@
    main-programmer: Benjamin Grauer
    co-programmer: ...
+
+   TGA-code: borrowed from nehe-Tutorials
+
+   ToDo: 
+   - free SDL-surface when deleting Material.
+   - delete imgNameWithPath after use creation.
 */
 
 #include "material.h"
+
+// headers only for PathList
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <fstream>
+
+using namespace std;
+
+
+PathList::PathList()
+{
+  pathName = NULL;
+  next = NULL;
+}
+PathList::PathList(char* pName)
+{
+  pathName = new char [strlen(pName)+1];
+  strcpy (pathName, pName);
+  next = NULL;
+}
+
+PathList::~PathList()
+{
+  if (pathName)
+    delete []pathName;
+  if (next)
+    delete next;
+}
+
+void PathList::addPath (char* pName)
+{
+  if (pName[0] == '\0')
+    {
+      if (verbose >=3)
+        printf("not Adding empty Path to the List.\n");
+      return;
+    }
+  char* tmpPName = new char[strlen(pName)];
+  strncpy(tmpPName, pName, strlen(pName)-1);
+  tmpPName[strlen(pName)-1] = '\0';
+  printf ("%s\n",tmpPName);
+  if (access (tmpPName, F_OK) == 0)
+    {
+      struct stat status;
+      stat(tmpPName, &status);
+      if (status.st_mode & S_IFDIR)
+        {
+          if (verbose >=2)
+            printf ("Adding Path %s to the PathList.\n", pName);
+          PathList* tmpPathList = this;
+          while (tmpPathList->next)
+            tmpPathList = tmpPathList->next;
+          tmpPathList->next = new PathList(pName);
+        }
+      else
+        if (verbose >=1)
+          printf ("You tried to add non-folder %s to a PathList.\n", tmpPName);
+    }
+  else
+    if (verbose >=1)
+      printf ("You tried to add non-existing folder %s to a PathList.\n", tmpPName);
+  delete []tmpPName;
+}
 
 /**
@@ -44 +115 @@
 {
   if (verbose >= 2)
-    printf ("delete Material %s\n", name);
-  if (nextMat != NULL)
+    printf ("delete Material %s.\n", name);
+  if (name)
+    delete []name;
+  if (diffuseTextureSet)
+    glDeleteTextures (1, &diffuseTexture);
+  if (nextMat)
     delete nextMat;
 }
@@ -57 +132 @@
 {
   if (verbose >=2)
-    printf ("adding Material %s\n", mtlName);
-  Material* newMat = new Material(mtlName);
-  Material* tmpMat = this;
+    printf ("adding Material %s.\n", mtlName);
+   Material* tmpMat = this;
   while (tmpMat->nextMat != NULL)
     {
       tmpMat = tmpMat->nextMat;
     }
-      tmpMat->nextMat = newMat;
-      return newMat;
+  tmpMat->nextMat = new Material(mtlName);
+  return tmpMat->nextMat;
   
 }
@@ -75 +149 @@
 {
   if (verbose >= 3)
-    printf ("initializing new Material\n");
+    printf ("initializing new Material.\n");
   nextMat = NULL;
-
+  name ="";
   setIllum(1);
   setDiffuse(0,0,0);
   setAmbient(0,0,0);
-  setSpecular(0,0,0);
+  setSpecular(.5,.5,.5);
   setShininess(2.0);
   setTransparency(0.0);
-  
-}
+
+  if (!pathList)
+    pathList = new PathList("");
+
+
+  diffuseTextureSet = false;
+  ambientTextureSet = false;
+  specularTextureSet = false;
+
+  
+}
+
+PathList *Material::pathList = NULL;
+
+/**
+   \brief Search for a Material called mtlName
+   \param mtlName the Name of the Material to search for
+   \returns Material named mtlName if it is found. NULL otherwise.
+*/
+Material* Material::search (char* mtlName)
+{
+  if (verbose >=3)
+    printf ("Searching for material %s", mtlName);
+  Material* searcher = this;
+  while (searcher != NULL)
+    {
+      if (verbose >= 3)
+        printf (".");
+      if (!strcmp (searcher->getName(), mtlName))
+        {
+          if (verbose >= 3)
+            printf ("found.\n");
+          return searcher;
+        }
+      searcher = searcher->nextMat;
+    }
+  if (verbose >=3)
+    printf ("not found\n");
+  return NULL;
+}
+
+/**
+   \brief sets the material with which the following Faces will be painted
+*/
+bool Material::select (void)
+{
+  // setting diffuse color
+  //  glColor3f (diffuse[0], diffuse[1], diffuse[2]);
+  glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuse);
+
+  // setting ambient color
+  glMaterialfv(GL_FRONT, GL_AMBIENT, ambient);
+
+  // setting up Sprecular
+  glMaterialfv(GL_FRONT, GL_SPECULAR, specular);
+
+  // setting up Shininess
+  glMaterialf(GL_FRONT, GL_SHININESS, shininess);
+  
+  // setting illumination Model 
+  if (illumModel == 1)
+    glShadeModel(GL_FLAT);
+  else if (illumModel >= 2)
+    glShadeModel(GL_SMOOTH);
+
+  if (diffuseTextureSet)
+    glBindTexture(GL_TEXTURE_2D, diffuseTexture);
+  else
+    glBindTexture(GL_TEXTURE_2D, 0);
+  
+}
+
 
 /**
@@ -93 +237 @@
 void Material::setName (char* mtlName)
 {
+  name = new char [strlen(mtlName)+1];
+  strcpy(name, mtlName);
   if (verbose >= 3)
-    printf("setting Material Name to %s", mtlName);
-  strcpy(name, mtlName);
+    printf("setting Material Name to %s.\n", name);
+
   //  printf ("adding new Material: %s, %p\n", this->getName(), this);
 
@@ -114 +260 @@
 {
   if (verbose >= 3)
-    printf("setting illumModel of Material %s to %i", name, illum);
+    printf("setting illumModel of Material %s to %i\n", name, illum);
   illumModel = illum;
   //  printf ("setting illumModel to: %i\n", illumModel);
@@ -135 +281 @@
 {
   if (verbose >= 3)
-    printf ("setting Diffuse Color of Material %s to r=%f g=%f b=%f\n", name, r, g, b);
+    printf ("setting Diffuse Color of Material %s to r=%f g=%f b=%f.\n", name, r, g, b);
   diffuse[0] = r;
   diffuse[1] = g;
@@ -148 +294 @@
 void Material::setDiffuse (char* rgb)
 {
-  char r[20],g[20],b[20];
-  sscanf (rgb, "%s %s %s", r, g, b);
-  setDiffuse (atof(r), atof(g), atof(b));
+  float r,g,b;
+  sscanf (rgb, "%f %f %f", &r, &g, &b);
+  setDiffuse (r, g, b);
 }
 
@@ -162 +308 @@
 {
   if (verbose >=3)
-    printf ("setting Ambient Color of Material %s to r=%f g=%f b=%f\n", name, r, g, b);
+    printf ("setting Ambient Color of Material %s to r=%f g=%f b=%f.\n", name, r, g, b);
   ambient[0] = r;
   ambient[1] = g;
@@ -174 +320 @@
 void Material::setAmbient (char* rgb)
 {
-  char r[20],g[20],b[20];
-  sscanf (rgb, "%s %s %s", r, g, b);
-  setAmbient (atof(r), atof(g), atof(b));
+  float r,g,b;
+  sscanf (rgb, "%f %f %f", &r, &g, &b);
+  setAmbient (r, g, b);
 }
 
@@ -188 +334 @@
 {
   if (verbose >= 3)
-    printf ("setting Specular Color of Material %s to r=%f g=%f b=%f\n", name, r, g, b);
+    printf ("setting Specular Color of Material %s to r=%f g=%f b=%f.\n", name, r, g, b);
   specular[0] = r;
   specular[1] = g;
@@ -200 +346 @@
 void Material::setSpecular (char* rgb)
 {
-  char r[20],g[20],b[20];
-  sscanf (rgb, "%s %s %s", r, g, b);
-  setSpecular (atof(r), atof(g), atof(b));
+  float r,g,b;
+  sscanf (rgb, "%f %f %f", &r, &g, &b);
+  setSpecular (r, g, b);
 }
 
@@ -229 +375 @@
 {
   if (verbose >= 3)
-    printf ("setting Transparency of Material %s to %f\n", name, trans);
+    printf ("setting Transparency of Material %s to %f.\n", name, trans);
   transparency = trans;
 }
@@ -238 +384 @@
 void Material::setTransparency (char* trans)
 {
-  char tr[20];
-  sscanf (trans, "%s", tr);
-  setTransparency (atof(tr));
-}
-
-/**
-   \brief Search for a Material called mtlName
-   \param mtlName the Name of the Material to search for
-   \returns Material named mtlName if it is found. NULL otherwise.
-*/
-Material* Material::search (char* mtlName)
+  setTransparency (atof(trans));
+}
+
+/**
+   \brief Adds a Texture Path to the List of already existing Paths
+   \param pathName The Path to add.
+*/
+void Material::addTexturePath(char* pathName)
+{
+  pathList->addPath (pathName);
+}
+
+/**
+   \brief Searches for a Texture inside one of the defined Paths
+   \param texName The name of the texture o search for.
+   \returns pathName+texName if texName was found in the pathList. NULL if the Texture is not found.
+*/
+char* Material::searchTextureInPaths(char* texName) const
+{
+  char* tmpName = NULL;
+  PathList* pList = pathList;
+  while (pList)
+    {
+      if (pList->pathName)
+        {
+          tmpName = new char [strlen(pList->pathName)+strlen(texName)+1];
+          strcpy(tmpName, pList->pathName);
+        }
+      else
+        {
+          tmpName = new char [strlen(texName)+1];
+          tmpName[0]='\0';
+        }
+      strcat(tmpName, texName);
+      printf("%s\n", tmpName);
+      if (access (tmpName, F_OK) == 0)
+        return tmpName;
+      
+      if (tmpName)
+        delete []tmpName;
+      tmpName = NULL;
+      pList = pList->next;
+    }
+  return NULL;
+}
+
+
+// MAPPING //
+
+/**
+   \brief Sets the Materials Diffuse Map
+   \param dMap the Name of the Image to Use
+*/
+void Material::setDiffuseMap(char* dMap)
+{
+  if (verbose>=2)
+    printf ("setting Diffuse Map %s\n", dMap);
+
+  //  diffuseTextureSet = loadBMP(dMap, &diffuseTexture);
+  diffuseTextureSet = loadImage(dMap, &diffuseTexture);
+
+}
+
+/**
+   \brief Sets the Materials Ambient Map
+   \param aMap the Name of the Image to Use
+*/
+void Material::setAmbientMap(char* aMap)
+{
+  SDL_Surface* ambientMap;
+
+}
+
+/**
+   \brief Sets the Materials Specular Map
+   \param sMap the Name of the Image to Use
+*/
+void Material::setSpecularMap(char* sMap)
+{
+  SDL_Surface* specularMap;
+
+}
+
+/**
+   \brief Sets the Materials Bumpiness
+   \param bump the Name of the Image to Use
+*/
+void Material::setBump(char* bump)
+{
+
+}
+
+bool Material::loadTexToGL (Image* pImage, GLuint* texture)
 {
   if (verbose >=3)
-    printf ("Searching for material %s", mtlName);
-  Material* searcher = this;
-  while (searcher != NULL)
-    {
-      if (verbose >= 3)
-        printf (".");
-      if (!strcmp (searcher->getName(), mtlName))
-        {
-          if (verbose >= 3)
-            printf ("found.\n");
-          return searcher;
-        }
-      searcher = searcher->nextMat;
-    }
-  return NULL;
-}
-
-/**
-   \brief sets the material with which the following Faces will be painted
-*/
-bool Material::select (void)
-{
-  // setting diffuse color
-  //  glColor3f (diffuse[0], diffuse[1], diffuse[2]);
-  glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuse);
-
-  // setting ambient color
-  glMaterialfv(GL_FRONT, GL_AMBIENT, ambient);
-
-  // setting up Sprecular
-  glMaterialfv(GL_FRONT, GL_SPECULAR, specular);
-
-  // setting up Shininess
-  glMaterialf(GL_FRONT, GL_SHININESS, shininess);
-  
-  // setting illumination Model 
-  if (illumModel == 1)
-    glShadeModel(GL_FLAT);
-  else if (illumModel >= 2)
-    glShadeModel(GL_SMOOTH);
-}
+    printf ("Loading texture to OpenGL-Environment.\n");
+  glGenTextures(1, texture);
+  glBindTexture(GL_TEXTURE_2D, *texture);
+  /* not Working, and not needed. 
+  glTexImage2D( GL_TEXTURE_2D, 0, 3, width,
+                height, 0, GL_BGR,
+                GL_UNSIGNED_BYTE, map->pixels );
+  */ 
+  gluBuild2DMipmaps(GL_TEXTURE_2D, 3, pImage->width, pImage->height, GL_RGB, GL_UNSIGNED_BYTE, pImage->data);
+  
+  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
+  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR_MIPMAP_LINEAR); 
+}
+
+
+#ifdef HAVE_SDL_SDL_IMAGE_H
+bool Material::loadImage(char* imageName, GLuint* texture)
+{
+  char* imgNameWithPath = searchTextureInPaths(imageName);
+  if (imgNameWithPath)
+    {
+      SDL_Surface* map;
+      Image* pImage = new Image;
+      map=IMG_Load(imgNameWithPath);
+      if(!map)
+        {
+          printf("IMG_Load: %s\n", IMG_GetError());
+          return false;
+        }
+      pImage->height = map->h;
+      pImage->width  = map->w;
+      pImage->data   = (GLubyte*)map->pixels;
+      if( !IMG_isPNG(SDL_RWFromFile(imgNameWithPath, "rb")) && !IMG_isJPG(SDL_RWFromFile(imgNameWithPath, "rb")))
+        for (int i=0;i<map->h * map->w *3;i+=3)
+          { 
+            GLuint temp = pImage->data[i];
+            pImage->data[i] = pImage->data[i+2];
+            pImage->data[i+2] = temp;
+          }
+      loadTexToGL (pImage, texture);
+    }
+  else
+    {
+      if (verbose >=1)
+        printf ("Image not Found: %s\n", imgNameWithPath);
+      return false;
+    }
+}
+
+
+#else /* HAVE_SDL_SDL_IMAGE_H */
+/**
+   \brief Makes the Programm ready to Read-in a texture-File
+   1. Checks what type of Image should be imported
+   2. ToDO: Checks where to find the Image
+*/
+bool Material::loadImage(char* imageName, GLuint* texture)
+{
+  char* imgNameWithPath = searchTextureInPaths(imageName);
+  if (imgNameWithPath)
+    {
+      if (!strncmp(imgNameWithPath+strlen(imgNameWithPath)-4, ".bmp", 4))
+        {
+          if (verbose >=2)
+            printf ("Requested bmp-image. Trying to Import.\n");
+          return loadBMP(imgNameWithPath, texture);
+        }
+      
+      else if (!strncmp(imgNameWithPath+strlen(imgNameWithPath)-4, ".jpg", 4) || !strncmp(imgNameWithPath+strlen(imgNameWithPath)-5, ".jpg", 5))
+        {
+          if (verbose >=2)
+            printf ("Requested jpeg-image. Trying to Import\n");
+          return loadJPG(imgNameWithPath, texture);
+        }
+      else if (!strncmp(imgNameWithPath+strlen(imgNameWithPath)-4, ".tga", 4))
+        {
+          if (verbose >=2)
+            printf ("Requested tga-image. Trying to Import\n");
+          return loadTGA(imgNameWithPath, texture);
+        }
+      else if (!strncmp(imgNameWithPath+strlen(imgNameWithPath)-4, ".png", 4))
+        {
+          if (verbose >=2)
+            printf ("Requested png-image. Trying to Import\n");
+          return loadPNG(imgNameWithPath, texture);
+        }
+      else
+        {
+          if (verbose >=1)
+            printf ("Requested Image was not recognized in its type. (Maybe a type-Cast-error.)\n FileName: %s", imgNameWithPath);
+          return false;
+        }
+    }
+  else
+    {
+      if (verbose >=1)
+        printf ("Image not Found: %s\n", imgNameWithPath);
+      return false;
+    }
+}
+
+/**
+   \brief reads in a Windows BMP-file, and imports it to openGL.
+   \param bmpName The name of the Image to load.
+   \param texture A pointer to the Texture which should be read to.
+*/
+bool Material::loadBMP (char* bmpName, GLuint* texture)
+{
+  Image* pImage = new Image;
+  FILE *file;
+  unsigned long size;                 // size of the image in bytes.
+  unsigned long i;                    // standard counter.
+  unsigned short int planes;          // number of planes in image (must be 1) 
+  unsigned short int bpp;             // number of bits per pixel (must be 24)
+  GLuint temp;                          // temporary color storage for bgr-rgb conversion.
+
+  // make sure the file is there.
+  if ((file = fopen(bmpName, "rb"))==NULL)
+    {
+      if (verbose >=1)
+        printf("File Not Found : %s\n",bmpName);
+      return false;
+    }
+  // seek through the bmp header, up to the width/height:
+  fseek(file, 18, SEEK_CUR);
+  
+  // read the width
+  if ((i = fread(&pImage->width, 4, 1, file)) != 1) 
+    {
+      if (verbose >=1)
+        printf("Error reading width from %s.\n", bmpName);
+      return false;
+    }
+  // read the height 
+  if ((i = fread(&pImage->height, 4, 1, file)) != 1) 
+    {
+      if (verbose>=1)
+        printf("Error reading height from %s.\n", bmpName);
+      return false;
+    }
+  
+  // calculate the size (assuming 24 bits or 3 bytes per pixel).
+  size = pImage->width * pImage->height * 3;
+  
+  // read the planes
+  if ((fread(&planes, 2, 1, file)) != 1) 
+    {
+      if (verbose>=1)
+        printf("Error reading planes from %s.\n", bmpName);
+      return false;
+    }
+  if (planes != 1) 
+    {
+      if (verbose>=1)
+        printf("Planes from %s is not 1: %u\n", bmpName, planes);
+      return false;
+    }
+  
+  // read the bpp
+  if ((i = fread(&bpp, 2, 1, file)) != 1) 
+    {
+      if (verbose>=1)
+        printf("Error reading bpp from %s.\n", bmpName);
+      return false;
+    }
+  if (bpp != 24) 
+    {
+      if (verbose>=1)
+        printf("Bpp from %s is not 24: %u\n", bmpName, bpp);
+      return false;
+    }
+  
+  // seek past the rest of the bitmap header.
+  fseek(file, 24, SEEK_CUR);
+  
+  // read the data. 
+  pImage->data = (GLubyte *) malloc(size);
+  if (pImage->data == NULL) 
+    {
+      if (verbose>=1)
+        printf("Error allocating memory for color-corrected image data");
+      return false;     
+    }
+  
+  if ((i = fread(pImage->data, size, 1, file)) != 1) 
+    {
+      if (verbose>=1)
+        printf("Error reading image data from %s.\n", bmpName);
+      return false;
+    }
+  fclose(file);
+
+  // reverse all of the colors. (bgr -> rgb)
+  for (i=0;i<size;i+=3) 
+    { 
+      temp = pImage->data[i];
+      pImage->data[i] = pImage->data[i+2];
+      pImage->data[i+2] = temp;
+    }
+  loadTexToGL (pImage, texture);
+  
+  return true;
+
+  if (pImage)
+    {
+      if (pImage->data)
+        {
+          free(pImage->data);
+        }
+      
+      free(pImage);
+    }
+
+}
+
+/**
+   \brief reads in a jpg-file
+   \param jpgName the Name of the Image to load
+   \param texture a reference to the Texture to write the image to
+*/
+bool Material::loadJPG (char* jpgName, GLuint* texture)
+{
+#ifdef HAVE_JPEGLIB_H
+  struct jpeg_decompress_struct cinfo;
+  Image *pImage = NULL;
+  FILE *pFile;
+  
+  // Open a file pointer to the jpeg file and check if it was found and opened 
+  if((pFile = fopen(jpgName, "rb")) == NULL) 
+    {
+      // Display an error message saying the file was not found, then return NULL
+      printf("Unable to load JPG File %s.\n", jpgName);
+      return false;
+    }
+  
+  // Create an error handler
+  jpeg_error_mgr jerr;
+  
+  // Have our compression info object point to the error handler address
+  cinfo.err = jpeg_std_error(&jerr);
+  
+  // Initialize the decompression object
+  jpeg_create_decompress(&cinfo);
+  
+  // Specify the data source (Our file pointer) 
+  jpeg_stdio_src(&cinfo, pFile);
+  
+  // Allocate the structure that will hold our eventual jpeg data (must free it!)
+  pImage = (Image*)malloc(sizeof(Image));
+  
+  // DECOFING
+  // Read in the header of the jpeg file
+  jpeg_read_header(&cinfo, TRUE);
+  
+  // Start to decompress the jpeg file with our compression info
+  jpeg_start_decompress(&cinfo);
+  
+  // Get the image dimensions and row span to read in the pixel data
+  pImage->rowSpan = cinfo.image_width * cinfo.num_components;
+  pImage->width   = cinfo.image_width;
+  pImage->height   = cinfo.image_height;
+  
+  // Allocate memory for the pixel buffer
+  pImage->data = new unsigned char[pImage->rowSpan * pImage->height];
+  
+  // Here we use the library's state variable cinfo.output_scanline as the
+  // loop counter, so that we don't have to keep track ourselves.
+  
+  // Create an array of row pointers
+  unsigned char** rowPtr = new unsigned char*[pImage->height];
+  for (int i = 0; i < pImage->height; i++)
+    rowPtr[i] = &(pImage->data[i*pImage->rowSpan]);
+  
+  // Now comes the juice of our work, here we extract all the pixel data
+  int rowsRead = 0;
+  while (cinfo.output_scanline < cinfo.output_height) 
+    {
+      // Read in the current row of pixels and increase the rowsRead count
+      rowsRead += jpeg_read_scanlines(&cinfo, &rowPtr[rowsRead], cinfo.output_height - rowsRead);
+    }
+  
+  // Delete the temporary row pointers
+  delete [] rowPtr;
+  
+  // Finish decompressing the data
+  jpeg_finish_decompress(&cinfo);//  decodeJPG(&cinfo, pImage);
+  
+  // This releases all the stored memory for reading and decoding the jpeg
+  jpeg_destroy_decompress(&cinfo);
+  
+  // Close the file pointer that opened the file
+  fclose(pFile);
+  
+
+  if(pImage == NULL)
+    exit(0);
+  
+  loadTexToGL (pImage, texture);
+  if (pImage)
+    {
+      if (pImage->data)
+        {
+          free(pImage->data);
+        }
+      
+      free(pImage);
+    }
+  return true;
+#else /* HAVE_JPEGLIB_H */
+  if (verbose >=1)
+    printf ("sorry, but you did not compile with jpeg-support.\nEither install SDL_image or jpeglib, and recompile to see the image\n");
+  return false;
+#endif /* HAVE_JPEGLIB_H */
+
+}
+
+/**
+   \brief reads in a tga-file
+   \param tgaName the Name of the Image to load
+   \param texture a reference to the Texture to write the image to
+*/
+bool Material::loadTGA(const char * tgaName, GLuint* texture)
+{
+  typedef struct
+  {
+    GLubyte Header[12];
+  } TGAHeader;
+  TGAHeader tgaHeader;                  
+  
+  GLubyte uTGAcompare[12] = {0,0,2, 0,0,0,0,0,0,0,0,0}; // Uncompressed TGA Header 
+  GLubyte cTGAcompare[12] = {0,0,10,0,0,0,0,0,0,0,0,0}; // Compressed TGA Header 
+  FILE * fTGA;
+  fTGA = fopen(tgaName, "rb");
+
+  if(fTGA == NULL)
+    {
+      printf("Error could not open texture file: %s\n", tgaName);
+      return false;
+    }
+  
+  if(fread(&tgaHeader, sizeof(TGAHeader), 1, fTGA) == 0)
+    {
+      printf("Error could not read file header of %s\n", tgaName);
+      if(fTGA != NULL)
+        {
+          fclose(fTGA);
+        }
+      return false;
+    }
+  
+  if(memcmp(uTGAcompare, &tgaHeader, sizeof(TGAHeader)) == 0)
+    {
+      loadUncompressedTGA(tgaName, fTGA, texture);
+      if (fTGA)
+        fclose (fTGA);
+    }
+  else if(memcmp(cTGAcompare, &tgaHeader, sizeof(TGAHeader)) == 0)
+    {
+      loadCompressedTGA(tgaName, fTGA, texture);
+        if (fTGA)
+          fclose (fTGA);
+    }
+  else
+    {
+      printf("Error TGA file be type 2 or type 10\n");
+      if (fTGA)
+        fclose(fTGA);
+      return false;
+    }
+  return true;
+}
+
+/**
+   \brief reads in an uncompressed tga-file
+   \param filename the Name of the Image to load
+   \param fTGA a Pointer to a File, that should be read
+   \param texture a reference to the Texture to write the image to
+*/
+bool Material::loadUncompressedTGA(const char * filename, FILE * fTGA, GLuint* texture)
+{
+  GLubyte header[6];      // First 6 Useful Bytes From The Header 
+  GLuint  bytesPerPixel;  // Holds Number Of Bytes Per Pixel Used In The TGA File 
+  GLuint  imageSize;      // Used To Store The Image Size When Setting Aside Ram 
+  GLuint  temp;           // Temporary Variable
+  GLuint  type;
+  GLuint  Height;         // Height of Image 
+  GLuint  Width;          // Width of Image 
+  GLuint  Bpp;            // Bits Per Pixel 
+
+  Image* pImage = new Image;
+  GLuint cswap;
+  if(fread(header, sizeof(header), 1, fTGA) == 0)
+    {
+      printf("Error could not read info header\n");
+      return false;
+    }
+  
+  Width = pImage->width  = header[1] * 256 + header[0];
+  Height =  pImage->height = header[3] * 256 + header[2];
+  Bpp = pImage->bpp = header[4];
+  // Make sure all information is valid
+  if((pImage->width <= 0) || (pImage->height <= 0) || ((pImage->bpp != 24) && (pImage->bpp !=32)))
+    {
+      printf("Error invalid texture information\n");
+      return false;
+    }
+  
+  if(pImage->bpp == 24) 
+    {
+      pImage->type = GL_RGB;
+    }
+  else
+    {
+      pImage->type = GL_RGBA;
+    }
+  
+  bytesPerPixel = (Bpp / 8);
+  imageSize = (bytesPerPixel * Width * Height);
+  pImage->data = (GLubyte*) malloc(imageSize);
+  
+  if(pImage->data == NULL)
+    {
+      printf("Error could not allocate memory for image\n");
+      return false;
+    }
+  
+  if(fread(pImage->data, 1, imageSize, fTGA) != imageSize)
+    {
+      printf("Error could not read image data\n");
+      if(pImage->data != NULL)
+        {
+          free(pImage->data);
+        }
+      return false;
+    }
+  
+  for(cswap = 0; cswap < (int)imageSize; cswap += bytesPerPixel)
+    {
+      pImage->data[cswap] ^= pImage->data[cswap+2] ^=
+        pImage->data[cswap] ^= pImage->data[cswap+2];
+    }
+  
+  loadTexToGL (pImage, texture);
+
+  return true;
+}
+
+/**
+   \brief reads in a compressed tga-file
+   \param filename the Name of the Image to load
+   \param fTGA a Pointer to a File, that should be read
+   \param texture a reference to the Texture to write the image to
+*/
+bool Material::loadCompressedTGA(const char * filename, FILE * fTGA, GLuint* texture)
+{
+  GLubyte header[6];      // First 6 Useful Bytes From The Header 
+  GLuint  bytesPerPixel;  // Holds Number Of Bytes Per Pixel Used In The TGA File 
+  GLuint  imageSize;      // Used To Store The Image Size When Setting Aside Ram 
+  GLuint  temp;           // Temporary Variable
+  GLuint  type;
+  GLuint  Height;         // Height of Image 
+  GLuint  Width;          // Width of Image 
+  GLuint  Bpp;            // Bits Per Pixel 
+
+  Image* pImage = new Image;
+
+  
+  if(fread(header, sizeof(header), 1, fTGA) == 0)
+    {
+      printf("Error could not read info header\n");
+      return false;
+    }
+  
+  Width = pImage->width  = header[1] * 256 + header[0];
+  Height = pImage->height = header[3] * 256 + header[2];
+  Bpp = pImage->bpp     = header[4];
+
+  GLuint pixelcount     = Height * Width;
+  GLuint currentpixel   = 0;
+  GLuint currentbyte    = 0;
+  GLubyte * colorbuffer = (GLubyte *)malloc(bytesPerPixel);
+
+  //Make sure all pImage info is ok 
+  if((pImage->width <= 0) || (pImage->height <= 0) || ((pImage->bpp != 24) && (pImage->bpp !=32)))
+    {
+      printf("Error Invalid pImage information\n");
+      return false;
+    }
+  
+  bytesPerPixel = (Bpp / 8);
+  imageSize             = (bytesPerPixel * Width * Height);
+  pImage->data  = (GLubyte*) malloc(imageSize);
+  
+  if(pImage->data == NULL)
+    {
+      printf("Error could not allocate memory for image\n");
+      return false;
+    }
+  
+  do
+    {
+      GLubyte chunkheader = 0;
+      
+      if(fread(&chunkheader, sizeof(GLubyte), 1, fTGA) == 0)
+        {
+          printf("Error could not read RLE header\n");
+          if(pImage->data != NULL)
+            {
+              free(pImage->data);
+            }
+          return false;
+        }
+      // If the ehader is < 128, it means the that is the number of RAW color packets minus 1 
+      if(chunkheader < 128)
+        {
+          short counter;
+          chunkheader++;
+          // Read RAW color values
+          for(counter = 0; counter < chunkheader; counter++)
+            { 
+              // Try to read 1 pixel 
+              if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel)
+                {
+                  printf("Error could not read image data\n");
+                  if(colorbuffer != NULL)
+                    {
+                      free(colorbuffer);
+                    }
+                  
+                  if(pImage->data != NULL)
+                    {
+                      free(pImage->data);
+                    }
+                  
+                  return false; 
+                }
+              // write to memory 
+              // Flip R and B vcolor values around in the process 
+              pImage->data[currentbyte    ] = colorbuffer[2];                               
+              pImage->data[currentbyte + 1] = colorbuffer[1];
+              pImage->data[currentbyte + 2] = colorbuffer[0];
+              
+              if(bytesPerPixel == 4) // if its a 32 bpp image 
+                {
+                  pImage->data[currentbyte + 3] = colorbuffer[3];// copy the 4th byte 
+                }
+              
+              currentbyte += bytesPerPixel;
+              currentpixel++;
+
+              // Make sure we haven't read too many pixels 
+              if(currentpixel > pixelcount)     
+                {
+                  printf("Error too many pixels read\n");
+                  if(colorbuffer != NULL)
+                    {
+                      free(colorbuffer);
+                    }
+                  
+                  if(pImage->data != NULL)
+                    {
+                      free(pImage->data);
+                    }
+                  
+                  return false;
+                }
+            }
+        }
+      // chunkheader > 128 RLE data, next color  reapeated chunkheader - 127 times
+      else
+        {
+          short counter;
+          chunkheader -= 127;   // Subteact 127 to get rid of the ID bit 
+          if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) // Attempt to read following color values 
+            {
+              printf("Error could not read from file");
+              if(colorbuffer != NULL)
+                {
+                  free(colorbuffer);
+                }
+              
+              if(pImage->data != NULL)
+                {
+                  free(pImage->data);
+                }
+              
+              return false;
+            }
+          
+          for(counter = 0; counter < chunkheader; counter++) //copy the color into the image data as many times as dictated
+            {                                                   
+              // switch R and B bytes areound while copying
+              pImage->data[currentbyte    ] = colorbuffer[2];
+              pImage->data[currentbyte + 1] = colorbuffer[1];
+              pImage->data[currentbyte + 2] = colorbuffer[0];
+              
+              if(bytesPerPixel == 4)
+                {
+                  pImage->data[currentbyte + 3] = colorbuffer[3];
+                }
+              
+              currentbyte += bytesPerPixel;
+              currentpixel++;
+              
+              if(currentpixel > pixelcount)
+                {
+                  printf("Error too many pixels read\n");
+                  if(colorbuffer != NULL)
+                    {
+                      free(colorbuffer);
+                    }
+                  
+                  if(pImage->data != NULL)
+                    {
+                      free(pImage->data);
+                    }
+                  
+                  return false;
+                }
+            }
+        }
+    }
+  
+  while(currentpixel < pixelcount);     // Loop while there are still pixels left
+
+  loadTexToGL (pImage, texture);
+
+  return true;
+}
+
+
+/*
+static int ST_is_power_of_two(unsigned int number)
+{
+  return (number & (number - 1)) == 0;
+}
+*/
+
+/**
+   \brief reads in a png-file
+   \param pngName the Name of the Image to load
+   \param texture a reference to the Texture to write the image to
+*/
+bool Material::loadPNG(const char* pngName, GLuint* texture)
+{
+#ifdef HAVE_PNG_H
+  Image* pImage = new Image;
+
+  FILE *PNG_file = fopen(pngName, "rb");
+  if (PNG_file == NULL)
+    {
+      return 0;
+    }
+  
+  GLubyte PNG_header[8];
+  
+  fread(PNG_header, 1, 8, PNG_file);
+  if (png_sig_cmp(PNG_header, 0, 8) != 0)
+    {
+      if (verbose >=2)
+        printf ("Not Recognized as a pngFile\n");
+      fclose (PNG_file);
+      return 0;
+    }
+  
+  png_structp PNG_reader = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+  if (PNG_reader == NULL)
+    {
+      fclose(PNG_file);
+      return 0;
+    }
+  
+  png_infop PNG_info = png_create_info_struct(PNG_reader);
+  if (PNG_info == NULL)
+    {
+      png_destroy_read_struct(&PNG_reader, NULL, NULL);
+      fclose(PNG_file);
+      return 0;
+    }
+  
+  png_infop PNG_end_info = png_create_info_struct(PNG_reader);
+  if (PNG_end_info == NULL)
+    {
+      png_destroy_read_struct(&PNG_reader, &PNG_info, NULL);
+      fclose(PNG_file);
+      return 0;
+    }
+  
+  if (setjmp(png_jmpbuf(PNG_reader)))
+    {
+      png_destroy_read_struct(&PNG_reader, &PNG_info, &PNG_end_info);
+      fclose(PNG_file);
+      return (0);
+    }
+  
+  png_init_io(PNG_reader, PNG_file);
+  png_set_sig_bytes(PNG_reader, 8);
+  
+  png_read_info(PNG_reader, PNG_info);
+  
+  pImage->width = png_get_image_width(PNG_reader, PNG_info);
+  pImage->height = png_get_image_height(PNG_reader, PNG_info);
+  
+  png_uint_32 bit_depth, color_type;
+  bit_depth = png_get_bit_depth(PNG_reader, PNG_info);
+  color_type = png_get_color_type(PNG_reader, PNG_info);
+  
+  if (color_type == PNG_COLOR_TYPE_PALETTE)
+    {
+      png_set_palette_to_rgb(PNG_reader);
+    }
+  
+  if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
+    {
+      png_set_gray_1_2_4_to_8(PNG_reader);
+    }
+  
+  if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+    {
+      png_set_gray_to_rgb(PNG_reader);
+    }
+  
+  if (png_get_valid(PNG_reader, PNG_info, PNG_INFO_tRNS))
+    {
+      png_set_tRNS_to_alpha(PNG_reader);
+    }
+  else
+    {
+      png_set_filler(PNG_reader, 0xff, PNG_FILLER_AFTER);
+    }
+  
+  if (bit_depth == 16)
+    {
+      png_set_strip_16(PNG_reader);
+    }
+  
+  png_read_update_info(PNG_reader, PNG_info);
+  
+  pImage->data = (png_byte*)malloc(4 * pImage->width * pImage->height);
+  png_byte** PNG_rows = (png_byte**)malloc(pImage->height * sizeof(png_byte*));
+  
+  unsigned int row;
+  for (row = 0; row < pImage->height; ++row)
+    {
+      PNG_rows[pImage->height - 1 - row] = pImage->data + (row * 4 * pImage->width);
+    }
+  
+  png_read_image(PNG_reader, PNG_rows);
+  
+  free(PNG_rows);
+  
+  png_destroy_read_struct(&PNG_reader, &PNG_info, &PNG_end_info);
+  fclose(PNG_file);
+  
+  /*  if (!ST_is_power_of_two(pImage->width) || !ST_is_power_of_two(pImage->height))
+    {
+      free(pImage->data);
+      return 0;
+    }
+  */
+  loadTexToGL (pImage, texture);  
+  
+  free(pImage->data);
+  
+  return true;
+#else /* HAVE_PNG_H */
+  if (verbose >=1)
+    printf ("sorry, but you did not compile with png-support.\nEither install SDL_image or libpng, and recompile to see the image\n");
+  return false;
+#endif /* HAVE_PNG_H */
+
+}
+
+#endif /* HAVE_SDL_SDL_IMAGE_H */