1.1 --- a/src/cwin.cc	Thu Feb 04 04:15:15 2016 +0200
     1.2 +++ b/src/cwin.cc	Fri Feb 05 03:33:18 2016 +0200
     1.3 @@ -2,6 +2,7 @@
     1.4  #include <vector>
     1.5  #include <algorithm>
     1.6  #include <X11/Xlib.h>
     1.7 +#include <X11/extensions/Xcomposite.h>
     1.8  #include <X11/extensions/Xdamage.h>
     1.9  #include "cwin.h"
    1.10  #include "logger.h"
    1.11 @@ -14,9 +15,12 @@
    1.12  {
    1.13  	xwin = xid;
    1.14  	xpixmap = 0;
    1.15 +	pixmap_valid = false;
    1.16  	memset(&attr, 0, sizeof attr);
    1.17  	mapped = false;
    1.18  	damage = 0;
    1.19 +	damaged = false;
    1.20 +	tex_valid = false;
    1.21  }
    1.22  
    1.23  CompWindow::~CompWindow()
    1.24 @@ -29,6 +33,43 @@
    1.25  	}
    1.26  }
    1.27  
    1.28 +bool CompWindow::update_attr()
    1.29 +{
    1.30 +	if(!xwin) return false;
    1.31 +
    1.32 +	XGetWindowAttributes(dpy, xwin, &attr);
    1.33 +	return true;
    1.34 +}
    1.35 +
    1.36 +bool CompWindow::update_pixmap()
    1.37 +{
    1.38 +	if(!xwin) return false;
    1.39 +
    1.40 +	Pixmap pix = XCompositeNameWindowPixmap(dpy, xwin);
    1.41 +	if(!pix) {
    1.42 +		log_error("failed to get window %x pixmap\n", xwin);
    1.43 +		return false;
    1.44 +	}
    1.45 +
    1.46 +	if(pix != xpixmap) {
    1.47 +		if(xpixmap) {
    1.48 +			XFreePixmap(dpy, xpixmap);
    1.49 +		}
    1.50 +		xpixmap = pix;
    1.51 +		tex_valid = false;
    1.52 +	}
    1.53 +	pixmap_valid = true;
    1.54 +	return true;
    1.55 +}
    1.56 +
    1.57 +bool CompWindow::update_texture()
    1.58 +{
    1.59 +	if(!xwin || !xpixmap) return false;
    1.60 +	tex.set_image(dpy, xpixmap);
    1.61 +	tex_valid = true;
    1.62 +	return true;
    1.63 +}
    1.64 +
    1.65  void add_window(CompWindow *cwin)
    1.66  {
    1.67  	if(have_window(cwin)) {