From d2bfe1ee29caf272006c6ee758845046ae6e3313 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 16 Sep 1999 16:40:46 +0000
Subject: initial check-in

---
 progs/xdemos/glxinfo.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 progs/xdemos/glxinfo.c

diff --git a/progs/xdemos/glxinfo.c b/progs/xdemos/glxinfo.c
new file mode 100644
index 00000000000..e9ac47462c7
--- /dev/null
+++ b/progs/xdemos/glxinfo.c
@@ -0,0 +1,99 @@
+/* $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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