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/************************************************************************
Test the availability of various OpenGL extensions
by Michael Garland, 2001.
$Id: t-glext.cxx 426 2004-09-27 04:34:55Z garland $
************************************************************************/
#include <gfx/gui.h>
#include <gfx/glext.h>
#include <string>
#include <fstream>
using namespace std;
class GUI : public MxGUI
{
public:
virtual void setup_for_drawing();
};
GUI gui;
static void dump_string(ostream &out, const string& str)
{
const char *ws = " \t\n\r";
string::size_type start, end;
start = 0;
end = str.find_first_of(ws, start);
while( end!=string::npos )
{
out << " " << str.substr(start, end-start) << endl;
start = str.find_first_not_of(ws, end);
end = str.find_first_of(ws, start);
}
}
void GUI::setup_for_drawing()
{
ofstream log("glext.txt");
string gl_extensions = (char *)glGetString(GL_EXTENSIONS);
log << "OpenGL extensions" << endl
<< "-----------------" << endl;
dump_string(log, gl_extensions);
log << endl << endl;
#ifdef HAVE_GL_WGLEXT_H
PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB =
(PFNWGLGETEXTENSIONSSTRINGARBPROC)
wglGetProcAddress("wglGetExtensionsStringARB");
if( !wglGetExtensionsStringARB )
{
log << "Couldn't find wglGetExtensionsStringARB." << endl;
exit(-1);
}
else
{
string wgl_extensions = wglGetExtensionsStringARB(wglGetCurrentDC());
log << "WGL extensions" << endl
<< "--------------" << endl;
dump_string(log, wgl_extensions);
}
#endif
exit(0);
}
int main(int argc, char **argv)
{
gui.initialize(argc, argv);
return gui.run();
}
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