dll/opengl/glu32/src/libutil/registry.c

   1 /*
   2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
   3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice including the dates of first publication and
  13  * either this permission notice or a reference to
  14  * http://oss.sgi.com/projects/FreeB/
  15  * shall be included in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
  26  * shall not be used in advertising or otherwise to promote the sale, use or
  27  * other dealings in this Software without prior written authorization from
  28  * Silicon Graphics, Inc.
  29  */
  30
  31 #include "gluos.h"
  32 #include <GL/glu.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 static const GLubyte versionString[] = "1.3";
  38 static const GLubyte extensionString[] =
  39     "GLU_EXT_nurbs_tessellator "
  40     "GLU_EXT_object_space_tess "
  41     ;
  42
  43 const GLubyte * GLAPIENTRY
  44 gluGetString(GLenum name)
  45 {
  46
  47     if (name == GLU_VERSION) {
  48         return versionString;
  49     } else if (name == GLU_EXTENSIONS) {
  50         return extensionString;
  51     }
  52     return NULL;
  53 }
  54
  55 /* extName is an extension name.
  56  * extString is a string of extensions separated by blank(s). There may or
  57  * may not be leading or trailing blank(s) in extString.
  58  * This works in cases of extensions being prefixes of another like
  59  * GL_EXT_texture and GL_EXT_texture3D.
  60  * Returns GL_TRUE if extName is found otherwise it returns GL_FALSE.
  61  */
  62 GLboolean GLAPIENTRY
  63 gluCheckExtension(const GLubyte *extName, const GLubyte *extString)
  64 {
  65   GLboolean flag = GL_FALSE;
  66   char *word;
  67   char *lookHere;
  68   char *deleteThis;
  69
  70   if (extString == NULL) return GL_FALSE;
  71
  72   deleteThis = lookHere = (char *)malloc(strlen((const char *)extString)+1);
  73   if (lookHere == NULL)
  74      return GL_FALSE;
  75   /* strtok() will modify string, so copy it somewhere */
  76   strcpy(lookHere,(const char *)extString);
  77
  78   while ((word= strtok(lookHere," ")) != NULL) {
  79      if (strcmp(word,(const char *)extName) == 0) {
  80         flag = GL_TRUE;
  81         break;
  82      }
  83      lookHere = NULL;           /* get next token */
  84   }
  85   free((void *)deleteThis);
  86   return flag;
  87 } /* gluCheckExtension() */
  88
  89
  90
  91 /*** registry.c ***/