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