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https://github.com/nigels-com/glew.git
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055a3884a7
git-svn-id: https://glew.svn.sourceforge.net/svnroot/glew/trunk/glew@237 783a27ee-832a-0410-bc00-9f386506c6dd
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
return GLEW_OK;
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}
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#elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX) /* _UNIX */
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GLboolean glxewGetExtension (const char* name)
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{
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GLubyte* p;
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GLubyte* end;
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GLuint len = _glewStrLen((const GLubyte*)name);
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if (glXQueryExtensionsString == NULL || glXGetCurrentDisplay == NULL) return GL_FALSE;
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p = (GLubyte*)glXQueryExtensionsString(glXGetCurrentDisplay(), DefaultScreen(glXGetCurrentDisplay()));
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if (0 == p) return GL_FALSE;
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end = p + _glewStrLen(p);
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while (p < end)
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{
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GLuint n = _glewStrCLen(p, ' ');
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if (len == n && _glewStrSame((const GLubyte*)name, p, n)) return GL_TRUE;
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p += n+1;
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}
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return GL_FALSE;
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}
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#ifndef GLEW_MX
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static
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#endif
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GLenum glxewContextInit (GLXEW_CONTEXT_ARG_DEF_LIST)
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{
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int major, minor;
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/* initialize core GLX 1.2 */
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if (_glewInit_GLX_VERSION_1_2(GLEW_CONTEXT_ARG_VAR_INIT)) return GLEW_ERROR_GLX_VERSION_11_ONLY;
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/* initialize flags */
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GLXEW_VERSION_1_0 = GL_FALSE;
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GLXEW_VERSION_1_1 = GL_FALSE;
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GLXEW_VERSION_1_2 = GL_FALSE;
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GLXEW_VERSION_1_3 = GL_FALSE;
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GLXEW_VERSION_1_4 = GL_FALSE;
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/* query GLX version */
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glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
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switch (minor)
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{
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case 4:
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GLXEW_VERSION_1_4 = GL_TRUE;
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case 3:
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GLXEW_VERSION_1_3 = GL_TRUE;
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case 2:
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GLXEW_VERSION_1_2 = GL_TRUE;
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GLXEW_VERSION_1_1 = GL_TRUE;
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GLXEW_VERSION_1_0 = GL_TRUE;
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break;
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default:
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return GLEW_ERROR_GLX_VERSION_11_ONLY;
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break;
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}
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/* initialize extensions */
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