src/TextureLoader.h

   1 /*
   2  * TextureLoader.h
   3  * Daniel Nelson - 8/24/0
   4  *
   5  * Copyright (C) 2000  Daniel Nelson
   6  * Copyright (C) 2004  Andrew Sayman
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  * Daniel Nelson - aluminumangel.org
  23  * 174 W. 18th Ave.
  24  * Columbus, OH  43210
  25  */
  26
  27 #ifndef TEXTURELOADER_H
  28 #define TEXTURELOADER_H
  29
  30 #include <GL/glut.h>
  31
  32 #include "glext.h"
  33 #include <sstream>
  34
  35 #include "Game.h"
  36
  37
  38 #define TL_GARBAGE_TEXTURE_TGA_ID     "Crack Attack! garbage texture"
  39 #define TL_SCREEN_SHOT_TGA_ID         "Crack Attack! screen shot"
  40
  41 /* static */ class TextureLoader {
  42 public:
  43   static GLubyte *loadImageAlpha ( const char *file_name, int _height,
  44       int _width );
  45   static GLubyte *loadImageNoAlpha ( const char *file_name, int _height,
  46       int _width );
  47   static GLubyte *loadImage ( const char *file_name, int _height, int _width);
  48   static void createTGA ( const char *tga_file_name, GLubyte *texture,
  49       int _height, int _width, const char *tga_id );
  50   static bool fileExists ( const char *file_name );
  51   static unsigned long determineImageCheckSum ( const char *tga_file_name,
  52       int _height, int _width );
  53   static void determineImageSize ( const char *tga_file_name, int &height,
  54       int &width );
  55
  56   static inline void buildLocalDataDirectoryName ( char dir_name[256] )
  57   {
  58     std::ostringstream s;
  59 #ifndef _WIN32
  60     s << getenv("HOME") << GC_LOCAL_DATA_DIRECTORY << std::ends;
  61 #else
  62     s << GC_LOCAL_DATA_DIRECTORY << std::ends;
  63 #endif
  64     strncpy(dir_name, s.str().data(), 256);
  65   }
  66
  67   static inline void buildLocalDataFileName ( const char base_name[256],
  68    char file_name[256] )
  69   {
  70     std::ostringstream s;
  71 #ifndef _WIN32
  72     s << getenv("HOME") << GC_LOCAL_DATA_DIRECTORY << base_name << std::ends;
  73 #else
  74     s << GC_LOCAL_DATA_DIRECTORY << base_name << std::ends;
  75 #endif
  76     strncpy(file_name, s.str().data(), 256);
  77   }
  78 };
  79
  80 #endif