Changeset 4156 in orxonox.OLD for orxonox/branches/md2_loader/src/lib/graphics

Timestamp:

May 10, 2005, 11:22:49 PM (20 years ago)

Author:

patrick

Message:

orxonox/branches/md2_loader: trying to use textures, started coding

Location:

orxonox/branches/md2_loader/src/lib/graphics/importer

Files:

• Makefile.in (modified) (1 diff)
• abstract_model.h (modified) (1 diff)

orxonox/branches/md2_loader/src/lib/graphics/importer/Makefile.in

@@ -42 +42 @@
 subdir = src/lib/graphics/importer
 DIST_COMMON = $(noinst_HEADERS) $(srcdir)/Makefile.am \
-        $(srcdir)/Makefile.in
+        $(srcdir)/Makefile.in TODO
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/configure.ac

orxonox/branches/md2_loader/src/lib/graphics/importer/abstract_model.h

@@ -181 +181 @@
 };
 
+class Helper
+{
+
+static createTexture(UINT textureArray[], LPSTR strFileName, int textureID)
+{
+        AUX_RGBImageRec *pBitmap = NULL;
+        
+        if(!strFileName)                                                                        // Return from the function if no file name was passed in
+                return;
+
+        pBitmap = auxDIBImageLoad(strFileName);                         // Load the bitmap and store the data
+        
+        if(pBitmap == NULL)                                                                     // If we can't load the file, quit!
+                exit(0);
+
+        // Generate a texture with the associative texture ID stored in the array
+        glGenTextures(1, &textureArray[textureID]);
+
+        // This sets the alignment requirements for the start of each pixel row in memory.
+        glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
+
+        // Bind the texture to the texture arrays index and init the texture
+        glBindTexture(GL_TEXTURE_2D, textureArray[textureID]);
+
+        // Build Mipmaps (builds different versions of the picture for distances - looks better)
+        gluBuild2DMipmaps(GL_TEXTURE_2D, 3, pBitmap->sizeX, pBitmap->sizeY, GL_RGB, GL_UNSIGNED_BYTE, pBitmap->data);
+
+        // Lastly, we need to tell OpenGL the quality of our texture map.  GL_LINEAR_MIPMAP_LINEAR
+        // is the smoothest.  GL_LINEAR_MIPMAP_NEAREST is faster than GL_LINEAR_MIPMAP_LINEAR, 
+        // but looks blochy and pixilated.  Good for slower computers though.  
+                
+        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR_MIPMAP_LINEAR);
+
+        // Now we need to free the bitmap data that we loaded since openGL stored it as a texture
+
+        if (pBitmap)                                                                            // If we loaded the bitmap
+        {
+                if (pBitmap->data)                                                              // If there is texture data
+                {
+                        free(pBitmap->data);                                            // Free the texture data, we don't need it anymore
+                }
+
+                free(pBitmap);                                                                  // Free the bitmap structure
+        }
+}
+
+};
+
 #endif /* _ABSTRACT_MODEL_H */