/* ------------------------------------------------------------------------ */ GLboolean glxewGetExtension (const char* name) { const GLubyte* start; const GLubyte* end; if (glXGetCurrentDisplay == NULL) return GL_FALSE; start = (const GLubyte*)glXGetClientString(glXGetCurrentDisplay(), GLX_EXTENSIONS); if (0 == start) return GL_FALSE; end = start + _glewStrLen(start); return _glewSearchExtension(name, start, end); } #ifdef GLEW_MX GLenum glxewContextInit (GLXEW_CONTEXT_ARG_DEF_LIST) #else GLenum glxewInit (GLXEW_CONTEXT_ARG_DEF_LIST) #endif { int major, minor; const GLubyte* extStart; const GLubyte* extEnd; /* initialize core GLX 1.2 */ if (_glewInit_GLX_VERSION_1_2(GLEW_CONTEXT_ARG_VAR_INIT)) return GLEW_ERROR_GLX_VERSION_11_ONLY; /* initialize flags */ GLXEW_VERSION_1_0 = GL_TRUE; GLXEW_VERSION_1_1 = GL_TRUE; GLXEW_VERSION_1_2 = GL_TRUE; GLXEW_VERSION_1_3 = GL_TRUE; GLXEW_VERSION_1_4 = GL_TRUE; /* query GLX version */ glXQueryVersion(glXGetCurrentDisplay(), &major, &minor); if (major == 1 && minor <= 3) { switch (minor) { case 3: GLXEW_VERSION_1_4 = GL_FALSE; break; case 2: GLXEW_VERSION_1_4 = GL_FALSE; GLXEW_VERSION_1_3 = GL_FALSE; break; default: return GLEW_ERROR_GLX_VERSION_11_ONLY; break; } } /* query GLX extension string */ extStart = 0; if (glXGetCurrentDisplay != NULL) extStart = (const GLubyte*)glXGetClientString(glXGetCurrentDisplay(), GLX_EXTENSIONS); if (extStart == 0) extStart = (const GLubyte *)""; extEnd = extStart + _glewStrLen(extStart); /* initialize extensions */