src/glut/dos/util.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  3.4
   4  * Copyright (C) 1995-1998  Brian Paul
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the Free
  18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 /*
  22  * DOS/DJGPP glut driver v1.4 for Mesa
  23  *
  24  *  Copyright (C) 2002 - Borca Daniel
  25  *  Email : dborca@yahoo.com
  26  *  Web   : http://www.geocities.com/dborca
  27  */
  28
  29
  30 #include "glutint.h"
  31 #include "glutbitmap.h"
  32 #include "glutstroke.h"
  33
  34
  35
  36 #ifdef GLUT_IMPORT_LIB
  37 extern StrokeFontRec glutStrokeRoman, glutStrokeMonoRoman;
  38 extern BitmapFontRec glutBitmap8By13, glutBitmap9By15, glutBitmapTimesRoman10, glutBitmapTimesRoman24, glutBitmapHelvetica10, glutBitmapHelvetica12, glutBitmapHelvetica18;
  39
  40 /* To get around the fact that DJGPP DXEs only allow functions
  41    to be exported and no data addresses (as Unix DSOs support), the
  42    GLUT API constants such as GLUT_STROKE_ROMAN have to get passed
  43    through a case statement to get mapped to the actual data structure
  44    address. */
  45 void *__glutFont (void *font)
  46 {
  47  switch ((int)font) {
  48         case (int)GLUT_STROKE_ROMAN:
  49              return &glutStrokeRoman;
  50         case (int)GLUT_STROKE_MONO_ROMAN:
  51              return &glutStrokeMonoRoman;
  52         case (int)GLUT_BITMAP_9_BY_15:
  53              return &glutBitmap9By15;
  54         case (int)GLUT_BITMAP_8_BY_13:
  55              return &glutBitmap8By13;
  56         case (int)GLUT_BITMAP_TIMES_ROMAN_10:
  57              return &glutBitmapTimesRoman10;
  58         case (int)GLUT_BITMAP_TIMES_ROMAN_24:
  59              return &glutBitmapTimesRoman24;
  60         case (int)GLUT_BITMAP_HELVETICA_10:
  61              return &glutBitmapHelvetica10;
  62         case (int)GLUT_BITMAP_HELVETICA_12:
  63              return &glutBitmapHelvetica12;
  64         case (int)GLUT_BITMAP_HELVETICA_18:
  65              return &glutBitmapHelvetica18;
  66         default: /* NOTREACHED */
  67              __glutFatalError("bad font!");
  68              return NULL;
  69  }
  70 }
  71 #endif