made override_redirect an envvar option (RBENCH_NO_WM)

diff --git a/src/x11/main.c b/src/x11/main.c
index c1f4b87..59b1765 100644 (file)
--- a/src/x11/main.c
+++ b/src/x11/main.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <ctype.h>
 #include <signal.h>
 #include <sys/time.h>
 #include <sys/ipc.h>
@@ -28,17 +29,28 @@ static Window win, root;
 static GC gc;
 static Visual *vis;
 static Atom xa_wm_proto, xa_wm_delwin;
+static int no_wm;
 
 static XImage *ximg;
 static XShmSegmentInfo shm;
 static int wait_putimg;
 static int xshm_ev_completion;
 
+
 int main(int argc, char **argv)
 {
        int num_frames = 0;
        XEvent ev;
        struct timeval tv, tv0;
+       char *env;
+
+       if((env = getenv("RBENCH_NO_WM"))) {
+               if(isdigit(env[0])) {
+                       no_wm = atoi(env);
+               } else {
+                       no_wm = 1;
+               }
+       }
 
        shm.shmid = -1;
        shm.shmaddr = (void*)-1;
@@ -190,7 +202,7 @@ static Window create_win(int width, int height, int bpp)
 
        xattr.background_pixel = BlackPixel(dpy, scr);
        xattr.colormap = cmap;
-       xattr.override_redirect = True;
+       xattr.override_redirect = no_wm ? True : False;
        win = XCreateWindow(dpy, root, 0, 0, width, height, 0, vinf->depth,
                        InputOutput, vis, CWColormap | CWBackPixel | CWOverrideRedirect, &xattr);
        if(!win) return 0;