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/* $Id: glxinfo.c,v 1.1 1999/09/16 16:40:46 brianp Exp $ */
/*
* Query GLX extensions, version, vendor, etc.
* This program is in the public domain.
* brian_paul@mesa3d.org
*/
#include <GL/gl.h>
#include <GL/glx.h>
#include <GL/glu.h>
#include <stdio.h>
#include <stdlib.h>
static void
query_glx( Display *dpy, int scr )
{
printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
printf("GL_VENDOR: %s\n", (char *) glGetString(GL_VENDOR));
printf("GLU_VERSION: %s\n", (char *) gluGetString(GLU_VERSION));
printf("GLU_EXTENSIONS: %s\n", (char *) gluGetString(GLU_EXTENSIONS));
printf("server GLX_VENDOR: %s\n", (char *) glXQueryServerString( dpy, scr, GLX_VENDOR));
printf("server GLX_VERSION: %s\n", (char *) glXQueryServerString( dpy, scr, GLX_VERSION));
printf("server GLX_EXTENSIONS: %s\n", (char *) glXQueryServerString( dpy, scr, GLX_EXTENSIONS));
printf("client GLX_VENDOR: %s\n", (char *) glXGetClientString( dpy, GLX_VENDOR));
printf("client GLX_VERSION: %s\n", (char *) glXGetClientString( dpy, GLX_VERSION));
printf("client GLX_EXTENSIONS: %s\n", (char *) glXGetClientString( dpy, GLX_EXTENSIONS));
printf("GLX extensions: %s\n", (char *) glXQueryExtensionsString(dpy, scr));
}
int
main( int argc, char *argv[] )
{
Display *dpy;
Window win;
int attrib[] = { GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
None };
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
GLXContext ctx;
XVisualInfo *visinfo;
int width = 100, height = 100;
dpy = XOpenDisplay(NULL);
if (!dpy) {
fprintf(stderr, "Unable to open default display!\n");
return 1;
}
scrnum = DefaultScreen( dpy );
root = RootWindow( dpy, scrnum );
visinfo = glXChooseVisual( dpy, scrnum, attrib );
if (!visinfo) {
fprintf(stderr, "Error: couldn't find RGB GLX visual!\n");
return 1;
}
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow( dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr );
ctx = glXCreateContext( dpy, visinfo, NULL, True );
glXMakeCurrent( dpy, win, ctx );
query_glx(dpy, scrnum);
glXDestroyContext(dpy, ctx);
XDestroyWindow(dpy, win);
XCloseDisplay(dpy);
return 0;
}
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