/* * DOS/DJGPP Mesa Utility Toolkit * Version: 1.0 * * Copyright (C) 2005 Daniel Borca All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * DANIEL BORCA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include <string.h> #include "internal.h" int APIENTRY glutExtensionSupported (const char *extension) { static const GLubyte *extensions = NULL; const GLubyte *last, *where; /* Extension names should not have spaces. */ if (strchr(extension, ' ') || *extension == '\0') { return GL_FALSE; } /* Not my problem if you don't have a valid OpenGL context */ if (!extensions) { extensions = glGetString(GL_EXTENSIONS); } if (!extensions) { return GL_FALSE; } /* Take care of sub-strings etc. */ for (last = extensions;;) { if ((where = (GLubyte *)strstr((const char *)last, extension)) == NULL) { return GL_FALSE; } last = where + strlen(extension); if (where == extensions || *(where - 1) == ' ') { if (*last == ' ' || *last == '\0') { return GL_TRUE; } } } } GLUTproc APIENTRY glutGetProcAddress (const char *procName) { /* TODO - handle glut namespace */ return (GLUTproc)DMesaGetProcAddress(procName); }