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