/* | |
** The OpenGL Extension Wrangler Library | |
** Copyright (C) 2002-2007, Milan Ikits <milan ikits[]ieee org> | |
** Copyright (C) 2002-2007, 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__ */ |