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/* ------------------------------------------------------------------------ */
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);
}
GLenum glxewInit ()
{
int major, minor;
const GLubyte* extStart;
const GLubyte* extEnd;
/* initialize core GLX 1.2 */
if (_glewInit_GLX_VERSION_1_2()) 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 */
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