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/*
** The OpenGL Extension Wrangler Library
** Copyright (C) 2002-2008, Milan Ikits <milan ikits[]ieee org>
** Copyright (C) 2002-2008, Marcelo E. Magallon <mmagallo[]debian org>
** Copyright (C) 2002, Lev Povalahev
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
**
** * Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright notice,
** this list of conditions and the following disclaimer in the documentation
** and/or other materials provided with the distribution.
** * The name of the author may be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
** CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
** THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __glew_utils_h__
#define __glew_utils_h__
#include <GL/glew.h>
#if defined(_WIN32)
# include <GL/wglew.h>
#elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
# include <GL/glxew.h>
#endif
/*
* Define glewGetContext and related helper macros.
*/
#ifdef GLEW_MX
# define glewGetContext() ctx
# ifdef _WIN32
# define GLEW_CONTEXT_ARG_DEF_INIT GLEWContext* ctx
# define GLEW_CONTEXT_ARG_VAR_INIT ctx
# define wglewGetContext() ctx
# define WGLEW_CONTEXT_ARG_DEF_INIT WGLEWContext* ctx
# define WGLEW_CONTEXT_ARG_DEF_LIST WGLEWContext* ctx
# else /* _WIN32 */
# define GLEW_CONTEXT_ARG_DEF_INIT void
# define GLEW_CONTEXT_ARG_VAR_INIT
# define glxewGetContext() ctx
# define GLXEW_CONTEXT_ARG_DEF_INIT void
# define GLXEW_CONTEXT_ARG_DEF_LIST GLXEWContext* ctx
# endif /* _WIN32 */
# define GLEW_CONTEXT_ARG_DEF_LIST GLEWContext* ctx
#else /* GLEW_MX */
# define GLEW_CONTEXT_ARG_DEF_INIT void
# define GLEW_CONTEXT_ARG_VAR_INIT
# define GLEW_CONTEXT_ARG_DEF_LIST void
# define WGLEW_CONTEXT_ARG_DEF_INIT void
# define WGLEW_CONTEXT_ARG_DEF_LIST void
# define GLXEW_CONTEXT_ARG_DEF_INIT void
# define GLXEW_CONTEXT_ARG_DEF_LIST void
#endif /* GLEW_MX */
/*
* Define glewGetProcAddress.
*/
#if defined(_WIN32)
# define glewGetProcAddress(name) wglGetProcAddress((LPCSTR)name)
#else
# if defined(__APPLE__)
extern void* NSGLGetProcAddress (const GLubyte* name);
# define glewGetProcAddress(name) NSGLGetProcAddress(name)
# else
# if defined(__sgi) || defined(__sun)
extern void* dlGetProcAddress (const GLubyte* name);
# define glewGetProcAddress(name) dlGetProcAddress(name)
# else /* __linux */
# define glewGetProcAddress(name) (*glXGetProcAddressARB)(name)
# endif
# endif
#endif
/*
* GLEW, just like OpenGL or GLU, does not rely on the standard C library.
* These functions implement the string processing functionality required in the library.
*/
extern GLuint _glewStrLen (const GLubyte* s);
extern GLuint _glewStrCLen (const GLubyte* s, GLubyte c);
extern GLboolean _glewStrSame (const GLubyte* a, const GLubyte* b, GLuint n);
extern GLboolean _glewStrSame1 (GLubyte** a, GLuint* na, const GLubyte* b, GLuint nb);
extern GLboolean _glewStrSame2 (GLubyte** a, GLuint* na, const GLubyte* b, GLuint nb);
extern GLboolean _glewStrSame3 (GLubyte** a, GLuint* na, const GLubyte* b, GLuint nb)
#endif /* __glew_utils_h__ */
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