X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=driver%2Fwindows.c;h=44cce89faca0141b68fabdfd3b6bf2a754cf2210;hp=9dbb5004cfbe5428dabe4486803e038d64c49629;hb=de460e831dc8578acfa8b72251ab9346c99c1f96;hpb=6b1c86cf395f59389e4ece4ea8f4bea2c332745b diff --git a/driver/windows.c b/driver/windows.c index 9dbb5004..44cce89f 100644 --- a/driver/windows.c +++ b/driver/windows.c @@ -226,6 +226,14 @@ nuke_focus (saver_info *si, int screen_no) } +static void +ungrab_keyboard_and_mouse (saver_info *si) +{ + ungrab_mouse (si); + ungrab_kbd (si); +} + + static Bool grab_keyboard_and_mouse (saver_info *si, Window window, Cursor cursor, int screen_no) @@ -291,18 +299,15 @@ grab_keyboard_and_mouse (saver_info *si, Window window, Cursor cursor, */ if (kstatus != GrabSuccess) /* Do not blank without a kbd grab. */ - return False; + { + /* If we didn't get both grabs, release the one we did get. */ + ungrab_keyboard_and_mouse (si); + return False; + } return True; /* Grab is good, go ahead and blank. */ } -static void -ungrab_keyboard_and_mouse (saver_info *si) -{ - ungrab_mouse (si); - ungrab_kbd (si); -} - int move_mouse_grab (saver_info *si, Window to, Cursor cursor, int to_screen_no) @@ -393,6 +398,21 @@ ensure_no_screensaver_running (Display *dpy, Screen *screen) (char *) id); status = True; } + + else if (XGetWindowProperty (dpy, kids[i], XA_WM_COMMAND, 0, 128, + False, XA_STRING, &type, &format, &nitems, + &bytesafter, &version) + == Success + && type != None + && !strcmp ((char *) version, "gnome-screensaver")) + { + fprintf (stderr, + "%s: \"%s\" is already running on display %s (window 0x%x)\n", + blurb(), (char *) version, + DisplayString (dpy), (int) kids [i]); + status = True; + break; + } } if (kids) XFree ((char *) kids); @@ -445,11 +465,6 @@ remove_vroot_property (Display *dpy, Window win) static Bool safe_XKillClient (Display *dpy, XID id); -#ifdef HAVE_XF86VMODE -static Bool safe_XF86VidModeGetViewPort (Display *, int, int *, int *); -#endif /* HAVE_XF86VMODE */ - - static void kill_xsetroot_data_1 (Display *dpy, Window window, Atom prop, const char *atom_name, @@ -607,7 +622,8 @@ restore_real_vroot_1 (saver_screen_info *ssi) fprintf (stderr, "%s: restoring __SWM_VROOT property on the real vroot (0x%lx).\n", blurb(), (unsigned long) ssi->real_vroot); - remove_vroot_property (si->dpy, ssi->screensaver_window); + if (ssi->screensaver_window) + remove_vroot_property (si->dpy, ssi->screensaver_window); if (ssi->real_vroot) { store_vroot_property (si->dpy, ssi->real_vroot, ssi->real_vroot_value); @@ -812,8 +828,10 @@ saver_sighup_handler (int sig) if (si->screen_blanked_p) { + int i; + for (i = 0; i < si->nscreens; i++) + kill_screenhack (&si->screens[i]); unblank_screen (si); - kill_screenhack (si); XSync (si->dpy, False); } @@ -999,232 +1017,6 @@ store_saver_status (saver_info *si) } - -/* Returns the area of the screen which the xscreensaver window should cover. - Normally this is the whole screen, but if the X server's root window is - actually larger than the monitor's displayable area, then we want to - operate in the currently-visible portion of the desktop instead. - */ -void -get_screen_viewport (saver_screen_info *ssi, - int *x_ret, int *y_ret, - int *w_ret, int *h_ret, - int target_x, int target_y, - Bool verbose_p) -{ - int w = WidthOfScreen (ssi->screen); - int h = HeightOfScreen (ssi->screen); - -# ifdef HAVE_XF86VMODE - saver_info *si = ssi->global; - saver_preferences *p = &si->prefs; - int event, error; - int dot; - XF86VidModeModeLine ml; - int x, y; - Bool xinerama_p = si->xinerama_p; - -# ifndef HAVE_XINERAMA - /* Even if we don't have the client-side Xinerama lib, check to see if - the server supports Xinerama, so that we know to ignore the VidMode - extension -- otherwise a server crash could result. Yay. */ - xinerama_p = XQueryExtension (si->dpy, "XINERAMA", &error, &event, &error); -# endif /* !HAVE_XINERAMA */ - -# ifdef HAVE_XINERAMA - if (xinerama_p) - { - int mouse_p = (target_x != -1 && target_y != -1); - int which = -1; - int i; - - /* If a mouse position wasn't passed in, assume we're talking about - this screen. */ - if (!mouse_p) - { - target_x = ssi->x; - target_y = ssi->y; - which = ssi->number; - } - - /* Find the Xinerama rectangle that contains the mouse position. */ - for (i = 0; i < si->nscreens; i++) - { - if (which == -1 && - target_x >= si->screens[i].x && - target_y >= si->screens[i].y && - target_x < si->screens[i].x + si->screens[i].width && - target_y < si->screens[i].y + si->screens[i].height) - which = i; - } - if (which == -1) which = 0; /* didn't find it? Use the first. */ - *x_ret = si->screens[which].x; - *y_ret = si->screens[which].y; - *w_ret = si->screens[which].width; - *h_ret = si->screens[which].height; - - if (verbose_p) - { - fprintf (stderr, "%s: %d: xinerama vp: %dx%d+%d+%d", - blurb(), which, - si->screens[which].width, si->screens[which].height, - si->screens[which].x, si->screens[which].y); - if (mouse_p) - fprintf (stderr, "; mouse at %d,%d", target_x, target_y); - fprintf (stderr, ".\n"); - } - - return; - } -# endif /* HAVE_XINERAMA */ - - if (!xinerama_p && /* Xinerama + VidMode = broken. */ - XF86VidModeQueryExtension (si->dpy, &event, &error) && - safe_XF86VidModeGetViewPort (si->dpy, ssi->number, &x, &y) && - XF86VidModeGetModeLine (si->dpy, ssi->number, &dot, &ml)) - { - char msg[512]; - *x_ret = x; - *y_ret = y; - *w_ret = ml.hdisplay; - *h_ret = ml.vdisplay; - - if (*x_ret == 0 && *y_ret == 0 && *w_ret == w && *h_ret == h) - /* There is no viewport -- the screen does not scroll. */ - return; - - - /* Apparently some versions of XFree86 return nonsense here! - I've had reports of 1024x768 viewports at -1936862040, -1953705044. - So, sanity-check the values and give up if they are out of range. - */ - if (*x_ret < 0 || *x_ret >= w || - *y_ret < 0 || *y_ret >= h || - *w_ret <= 0 || *w_ret > w || - *h_ret <= 0 || *h_ret > h) - { - static int warned_once = 0; - if (!warned_once) - { - fprintf (stderr, "\n" - "%s: X SERVER BUG: %dx%d viewport at %d,%d is impossible.\n" - "%s: The XVidMode server extension is returning nonsense.\n" - "%s: Please report this bug to your X server vendor.\n\n", - blurb(), *w_ret, *h_ret, *x_ret, *y_ret, - blurb(), blurb()); - warned_once = 1; - } - *x_ret = 0; - *y_ret = 0; - *w_ret = w; - *h_ret = h; - return; - } - - sprintf (msg, "%s: %d: vp is %dx%d+%d+%d", - blurb(), ssi->number, - *w_ret, *h_ret, *x_ret, *y_ret); - - - if (p->getviewport_full_of_lies_p) - { - /* XF86VidModeGetViewPort() tends to be full of lies on laptops - that have a docking station or external monitor that runs in - a different resolution than the laptop's screen: - - http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=81593 - http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=208417 - http://bugs.xfree86.org/show_bug.cgi?id=421 - - The XFree86 developers have closed the bug. As far as I can - tell, their reason for this was, "this is an X server bug, - but it's pretty hard to fix. Therefore, we are closing it." - - So, now there's a preference item for those unfortunate users to - tell us not to trust a word that XF86VidModeGetViewPort() says. - */ - static int warned_once = 0; - if (!warned_once && verbose_p) - { - warned_once = 1; - fprintf (stderr, - "%s: %d: XF86VidModeGetViewPort() says vp is %dx%d+%d+%d;\n" - "%s: %d: assuming that is a pack of lies;\n" - "%s: %d: using %dx%d+0+0 instead.\n", - blurb(), ssi->number, - *w_ret, *h_ret, *x_ret, *y_ret, - blurb(), ssi->number, - blurb(), ssi->number, w, h); - } - - *x_ret = 0; - *y_ret = 0; - *w_ret = w; - *h_ret = h; - return; - } - - - /* Apparently, though the server stores the X position in increments of - 1 pixel, it will only make changes to the *display* in some other - increment. With XF86_SVGA on a Thinkpad, the display only updates - in multiples of 8 pixels when in 8-bit mode, and in multiples of 4 - pixels in 16-bit mode. I don't know what it does in 24- and 32-bit - mode, because I don't have enough video memory to find out. - - I consider it a bug that XF86VidModeGetViewPort() is telling me the - server's *target* scroll position rather than the server's *actual* - scroll position. David Dawes agrees, and says they may fix this in - XFree86 4.0, but it's notrivial. - - He also confirms that this behavior is server-dependent, so the - actual scroll position cannot be reliably determined by the client. - So... that means the only solution is to provide a ``sandbox'' - around the blackout window -- we make the window be up to N pixels - larger than the viewport on both the left and right sides. That - means some part of the outer edges of each hack might not be - visible, but screw it. - - I'm going to guess that 16 pixels is enough, and that the Y dimension - doesn't have this problem. - - The drawback of doing this, of course, is that some of the screenhacks - will still look pretty stupid -- for example, "slidescreen" will cut - off the left and right edges of the grid, etc. - */ -# define FUDGE 16 - if (x > 0 && x < w - ml.hdisplay) /* not at left edge or right edge */ - { - /* Round X position down to next lower multiple of FUDGE. - Increase width by 2*FUDGE in case some server rounds up. - */ - *x_ret = ((x - 1) / FUDGE) * FUDGE; - *w_ret += (FUDGE * 2); - } -# undef FUDGE - - if (*x_ret != x || - *y_ret != y || - *w_ret != ml.hdisplay || - *h_ret != ml.vdisplay) - sprintf (msg + strlen(msg), "; fudged to %dx%d+%d+%d", - *w_ret, *h_ret, *x_ret, *y_ret); - - if (verbose_p) - fprintf (stderr, "%s.\n", msg); - - return; - } - -# endif /* HAVE_XF86VMODE */ - - *x_ret = 0; - *y_ret = 0; - *w_ret = w; - *h_ret = h; -} - - static Bool error_handler_hit_p = False; static int @@ -1318,7 +1110,7 @@ safe_XKillClient (Display *dpy, XID id) #ifdef HAVE_XF86VMODE -static Bool +Bool safe_XF86VidModeGetViewPort (Display *dpy, int screen, int *xP, int *yP) { Bool result; @@ -1362,13 +1154,9 @@ initialize_screensaver_window_1 (saver_screen_info *ssi) XColor black; XSetWindowAttributes attrs; unsigned long attrmask; - int x, y, width, height; static Bool printed_visual_info = False; /* only print the message once. */ Window horked_window = 0; - get_screen_viewport (ssi, &x, &y, &width, &height, -1, -1, - (p->verbose_p && !si->screen_blanked_p)); - black.red = black.green = black.blue = 0; if (ssi->cmap == DefaultColormapOfScreen (ssi->screen)) @@ -1421,13 +1209,6 @@ initialize_screensaver_window_1 (saver_screen_info *ssi) attrs.backing_pixel = ssi->black_pixel; attrs.border_pixel = ssi->black_pixel; - if (p->debug_p -# ifdef QUAD_MODE - && !p->quad_p -# endif - ) - width = width / 2; - if (!p->verbose_p || printed_visual_info) ; else if (ssi->current_visual == DefaultVisualOfScreen (ssi->screen)) @@ -1503,10 +1284,10 @@ initialize_screensaver_window_1 (saver_screen_info *ssi) { XWindowChanges changes; unsigned int changesmask = CWX|CWY|CWWidth|CWHeight|CWBorderWidth; - changes.x = x; - changes.y = y; - changes.width = width; - changes.height = height; + changes.x = ssi->x; + changes.y = ssi->y; + changes.width = ssi->width; + changes.height = ssi->height; changes.border_width = 0; if (! (safe_XConfigureWindow (si->dpy, ssi->screensaver_window, @@ -1523,10 +1304,9 @@ initialize_screensaver_window_1 (saver_screen_info *ssi) { ssi->screensaver_window = XCreateWindow (si->dpy, RootWindowOfScreen (ssi->screen), - x, y, width, height, + ssi->x, ssi->y, ssi->width, ssi->height, 0, ssi->current_depth, InputOutput, ssi->current_visual, attrmask, &attrs); - reset_stderr (ssi); if (horked_window) @@ -1578,10 +1358,10 @@ initialize_screensaver_window (saver_info *si) } -/* Called when the RANDR (Resize and Rotate) extension tells us that the - size of the screen has changed while the screen was blanked. If we - don't do this, then the screen saver will no longer fully fill the - screen, and some of the underlying desktop may be visible. +/* Called when the RANDR (Resize and Rotate) extension tells us that + the size of the screen has changed while the screen was blanked. + Call update_screen_layout() first, then call this to synchronize + the size of the saver windows to the new sizes of the screens. */ void resize_screensaver_window (saver_info *si) @@ -1589,132 +1369,97 @@ resize_screensaver_window (saver_info *si) saver_preferences *p = &si->prefs; int i; - /* First update the size info in the saver_screen_info structs. - */ - -# ifdef HAVE_XINERAMA - if (si->xinerama_p) + for (i = 0; i < si->nscreens; i++) { - /* As of XFree86 4.3.0, the RANDR and XINERAMA extensions cannot coexist. - However, maybe they will someday, so I'm guessing that the right thing - to do in that case will be to re-query the Xinerama rectangles after - a RANDR size change is received: presumably, if the resolution of one - or more of the monitors has changed, then the Xinerama rectangle - corresponding to that monitor will also have been updated. - */ - int nscreens; - XineramaScreenInfo *xsi = XineramaQueryScreens (si->dpy, &nscreens); - - if (nscreens != si->nscreens) { - /* Apparently some Xinerama implementations let you use a hot-key - to change the number of screens in use! This is, of course, - documented nowhere. Let's try to do something marginally less - bad than crashing. - */ - fprintf (stderr, "%s: bad craziness: xinerama screen count changed " - "from %d to %d!\n", blurb(), si->nscreens, nscreens); - if (nscreens > si->nscreens) - nscreens = si->nscreens; - } + saver_screen_info *ssi = &si->screens[i]; + XWindowAttributes xgwa; - if (!xsi) abort(); - for (i = 0; i < nscreens; i++) + /* Make sure a window exists -- it might not if a monitor was just + added for the first time. + */ + if (! ssi->screensaver_window) { - saver_screen_info *ssi = &si->screens[i]; - if (p->verbose_p && - (ssi->x != xsi[i].x_org || - ssi->y != xsi[i].y_org || - ssi->width != xsi[i].width || - ssi->height != xsi[i].height)) + initialize_screensaver_window_1 (ssi); + if (p->verbose_p) fprintf (stderr, - "%s: %d: resize xinerama from %dx%d+%d+%d to %dx%d+%d+%d\n", - blurb(), i, - ssi->width, ssi->height, ssi->x, ssi->y, - xsi[i].width, xsi[i].height, xsi[i].x_org, xsi[i].y_org); - - ssi->x = xsi[i].x_org; - ssi->y = xsi[i].y_org; - ssi->width = xsi[i].width; - ssi->height = xsi[i].height; + "%s: %d: newly added window 0x%lx %dx%d+%d+%d\n", + blurb(), i, (unsigned long) ssi->screensaver_window, + ssi->width, ssi->height, ssi->x, ssi->y); } - XFree (xsi); - } - else -# endif /* HAVE_XINERAMA */ - { - /* Not Xinerama -- get the real sizes of the root windows. */ - for (i = 0; i < si->nscreens; i++) + + /* Make sure the window is the right size -- it might not be if + the monitor changed resolution, or if a badly-behaved hack + screwed with it. + */ + XGetWindowAttributes (si->dpy, ssi->screensaver_window, &xgwa); + if (xgwa.x != ssi->x || + xgwa.y != ssi->y || + xgwa.width != ssi->width || + xgwa.height != ssi->height) { - saver_screen_info *ssi = &si->screens[i]; - XWindowAttributes xgwa; - XGetWindowAttributes (si->dpy, RootWindowOfScreen (ssi->screen), - &xgwa); - - if (p->verbose_p && - (ssi->x != xgwa.x || - ssi->y != xgwa.y || - ssi->width != xgwa.width || - ssi->height != xgwa.height)) + XWindowChanges changes; + unsigned int changesmask = CWX|CWY|CWWidth|CWHeight|CWBorderWidth; + changes.x = ssi->x; + changes.y = ssi->y; + changes.width = ssi->width; + changes.height = ssi->height; + changes.border_width = 0; + + if (p->verbose_p) fprintf (stderr, - "%s: %d: resize screen from %dx%d+%d+%d to %dx%d+%d+%d\n", - blurb(), i, - ssi->width, ssi->height, ssi->x, ssi->y, - xgwa.width, xgwa.height, xgwa.x, xgwa.y); - - ssi->x = xgwa.x; - ssi->y = xgwa.y; - ssi->width = xgwa.width; - ssi->height = xgwa.height; + "%s: %d: resize 0x%lx from %dx%d+%d+%d to %dx%d+%d+%d\n", + blurb(), i, (unsigned long) ssi->screensaver_window, + xgwa.width, xgwa.height, xgwa.x, xgwa.y, + ssi->width, ssi->height, ssi->x, ssi->y); + + if (! safe_XConfigureWindow (si->dpy, ssi->screensaver_window, + changesmask, &changes)) + fprintf (stderr, "%s: %d: someone horked our saver window" + " (0x%lx)! Unable to resize it!\n", + blurb(), i, (unsigned long) ssi->screensaver_window); + } + + /* Now (if blanked) make sure that it's mapped and running a hack -- + it might not be if we just added it. (We also might be re-using + an old window that existed for a previous monitor that was + removed and re-added.) + + Note that spawn_screenhack() calls select_visual() which may destroy + and re-create the window via initialize_screensaver_window_1(). + */ + if (si->screen_blanked_p) + { + if (ssi->cmap) + XInstallColormap (si->dpy, ssi->cmap); + XMapRaised (si->dpy, ssi->screensaver_window); + if (! ssi->pid) + spawn_screenhack (ssi); + + /* Make sure the act of adding a screen doesn't present as + pointer motion (and thus cause an unblank). */ + { + Window root, child; + int x, y; + unsigned int mask; + XQueryPointer (si->dpy, ssi->screensaver_window, &root, &child, + &ssi->poll_mouse_last_root_x, + &ssi->poll_mouse_last_root_y, + &x, &y, &mask); + } } } - /* Next, ensure that the screensaver windows are the right size, taking - into account both the new size of the screen in question's root window, - and any viewport within that. + /* Kill off any savers running on no-longer-extant monitors. */ - - for (i = 0; i < si->nscreens; i++) + for (; i < si->ssi_count; i++) { saver_screen_info *ssi = &si->screens[i]; - XWindowAttributes xgwa; - XWindowChanges changes; - int x, y, width, height; - unsigned int changesmask = CWX|CWY|CWWidth|CWHeight|CWBorderWidth; - - XGetWindowAttributes (si->dpy, ssi->screensaver_window, &xgwa); - get_screen_viewport (ssi, &x, &y, &width, &height, -1, -1, - (p->verbose_p && !si->screen_blanked_p)); - if (xgwa.x == x && - xgwa.y == y && - xgwa.width == width && - xgwa.height == height) - continue; /* no change! */ - - changes.x = x; - changes.y = y; - changes.width = width; - changes.height = height; - changes.border_width = 0; - - if (p->debug_p -# ifdef QUAD_MODE - && !p->quad_p -# endif - ) - changes.width = changes.width / 2; - - if (p->verbose_p) - fprintf (stderr, - "%s: %d: resize 0x%lx from %dx%d+%d+%d to %dx%d+%d+%d\n", - blurb(), i, (unsigned long) ssi->screensaver_window, - xgwa.width, xgwa.height, xgwa.x, xgwa.y, - width, height, x, y); - if (! safe_XConfigureWindow (si->dpy, ssi->screensaver_window, - changesmask, &changes)) + if (ssi->pid) + kill_screenhack (ssi); + if (ssi->screensaver_window) { - fprintf (stderr, - "%s: %d: someone horked our saver window (0x%lx)! Unable to resize it!\n", - blurb(), i, (unsigned long) ssi->screensaver_window); + XUnmapWindow (si->dpy, ssi->screensaver_window); + restore_real_vroot_1 (ssi); } } } @@ -2094,10 +1839,30 @@ maybe_transfer_grabs (saver_screen_info *ssi, } +static Visual * +get_screen_gl_visual (saver_info *si, int real_screen_number) +{ + int i; + int nscreens = ScreenCount (si->dpy); + + if (! si->best_gl_visuals) + si->best_gl_visuals = (Visual **) + calloc (nscreens + 1, sizeof (*si->best_gl_visuals)); + + for (i = 0; i < nscreens; i++) + if (! si->best_gl_visuals[i]) + si->best_gl_visuals[i] = + get_best_gl_visual (si, ScreenOfDisplay (si->dpy, i)); + + if (real_screen_number < 0 || real_screen_number >= nscreens) abort(); + return si->best_gl_visuals[real_screen_number]; +} + Bool select_visual (saver_screen_info *ssi, const char *visual_name) { + XWindowAttributes xgwa; saver_info *si = ssi->global; saver_preferences *p = &si->prefs; Bool install_cmap_p = p->install_cmap_p; @@ -2112,6 +1877,17 @@ select_visual (saver_screen_info *ssi, const char *visual_name) */ Bool always_recreate_window_p = True; + get_screen_gl_visual (si, 0); /* let's probe all the GL visuals early */ + + /* We make sure the existing window is actually on ssi->screen before + trying to use it, in case things moved around radically when monitors + were added or deleted. If we don't do this we could get a BadMatch + even though the depths match. I think. + */ + memset (&xgwa, 0, sizeof(xgwa)); + if (ssi->screensaver_window) + XGetWindowAttributes (si->dpy, ssi->screensaver_window, &xgwa); + if (visual_name && *visual_name) { if (!strcmp(visual_name, "default-i") || @@ -2133,7 +1909,7 @@ select_visual (saver_screen_info *ssi, const char *visual_name) !strcmp(visual_name, "Gl") || !strcmp(visual_name, "GL")) { - new_v = ssi->best_gl_visual; + new_v = get_screen_gl_visual (si, ssi->real_screen_number); if (!new_v && p->verbose_p) fprintf (stderr, "%s: no GL visuals.\n", progname); } @@ -2154,13 +1930,16 @@ select_visual (saver_screen_info *ssi, const char *visual_name) ssi->install_cmap_p = install_cmap_p; - if (new_v && - (always_recreate_window_p || - (ssi->current_visual != new_v) || - (install_cmap_p != was_installed_p))) + if ((ssi->screen != xgwa.screen) || + (new_v && + (always_recreate_window_p || + (ssi->current_visual != new_v) || + (install_cmap_p != was_installed_p)))) { Colormap old_c = ssi->cmap; Window old_w = ssi->screensaver_window; + if (! new_v) + new_v = ssi->current_visual; if (p->verbose_p) {