x11_common.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 2,222 行 · 第 1/5 页

{
    int u_dheight, u_dwidth, left_ov, left_ov2;

    if (!f_gc)
        return;

    u_dheight = use_fs ? vo_screenheight : vo_dheight;
    u_dwidth = use_fs ? vo_screenwidth : vo_dwidth;
    if ((u_dheight <= img_height) && (u_dwidth <= img_width))
        return;

    left_ov = (u_dheight - img_height) / 2;
    left_ov2 = (u_dwidth - img_width) / 2;

    XFillRectangle(mDisplay, vo_window, f_gc, 0, 0, u_dwidth, left_ov);
    XFillRectangle(mDisplay, vo_window, f_gc, 0, u_dheight - left_ov - 1,
                   u_dwidth, left_ov + 1);

    if (u_dwidth > img_width)
    {
        XFillRectangle(mDisplay, vo_window, f_gc, 0, left_ov, left_ov2,
                       img_height);
        XFillRectangle(mDisplay, vo_window, f_gc, u_dwidth - left_ov2 - 1,
                       left_ov, left_ov2 + 1, img_height);
    }

    XFlush(mDisplay);
}

void vo_x11_clearwindow(Display * mDisplay, Window vo_window)
{
    if (!f_gc)
        return;
    XFillRectangle(mDisplay, vo_window, f_gc, 0, 0, vo_screenwidth,
                   vo_screenheight);
    //
    XFlush(mDisplay);
}


void vo_x11_setlayer(Display * mDisplay, Window vo_window, int layer)
{
    if (WinID >= 0)
        return;

    if (vo_fs_type & vo_wm_LAYER)
    {
        XClientMessageEvent xev;

        if (!orig_layer)
            orig_layer = vo_x11_get_gnome_layer(mDisplay, vo_window);

        memset(&xev, 0, sizeof(xev));
        xev.type = ClientMessage;
        xev.display = mDisplay;
        xev.window = vo_window;
        xev.message_type = XA_WIN_LAYER;
        xev.format = 32;
        xev.data.l[0] = layer ? fs_layer : orig_layer;  // if not fullscreen, stay on default layer
        xev.data.l[1] = CurrentTime;
        mp_msg(MSGT_VO, MSGL_V,
               "[x11] Layered style stay on top (layer %ld).\n",
               xev.data.l[0]);
        XSendEvent(mDisplay, mRootWin, False, SubstructureNotifyMask,
                   (XEvent *) & xev);
    } else if (vo_fs_type & vo_wm_NETWM)
    {
        XClientMessageEvent xev;
        char *state;

        memset(&xev, 0, sizeof(xev));
        xev.type = ClientMessage;
        xev.message_type = XA_NET_WM_STATE;
        xev.display = mDisplay;
        xev.window = vo_window;
        xev.format = 32;
        xev.data.l[0] = layer;

        if (vo_fs_type & vo_wm_STAYS_ON_TOP)
            xev.data.l[1] = XA_NET_WM_STATE_STAYS_ON_TOP;
        else if (vo_fs_type & vo_wm_ABOVE)
            xev.data.l[1] = XA_NET_WM_STATE_ABOVE;
        else if (vo_fs_type & vo_wm_FULLSCREEN)
            xev.data.l[1] = XA_NET_WM_STATE_FULLSCREEN;
        else if (vo_fs_type & vo_wm_BELOW)
            // This is not fallback. We can safely assume that the situation
            // where only NETWM_STATE_BELOW is supported doesn't exist.
            xev.data.l[1] = XA_NET_WM_STATE_BELOW;

        XSendEvent(mDisplay, mRootWin, False, SubstructureRedirectMask,
                   (XEvent *) & xev);
        state = XGetAtomName(mDisplay, xev.data.l[1]);
        mp_msg(MSGT_VO, MSGL_V,
               "[x11] NET style stay on top (layer %d). Using state %s.\n",
               layer, state);
        XFree(state);
    }
}

static int vo_x11_get_fs_type(int supported)
{
    int i;
    int type = supported;

    if (vo_fstype_list)
    {
        i = 0;
        for (i = 0; vo_fstype_list[i]; i++)
        {
            int neg = 0;
            char *arg = vo_fstype_list[i];

            if (vo_fstype_list[i][0] == '-')
            {
                neg = 1;
                arg = vo_fstype_list[i] + 1;
            }

            if (!strncmp(arg, "layer", 5))
            {
                if (!neg && (arg[5] == '='))
                {
                    char *endptr = NULL;
                    int layer = strtol(vo_fstype_list[i] + 6, &endptr, 10);

                    if (endptr && *endptr == '\0' && layer >= 0
                        && layer <= 15)
                        fs_layer = layer;
                }
                if (neg)
                    type &= ~vo_wm_LAYER;
                else
                    type |= vo_wm_LAYER;
            } else if (!strcmp(arg, "above"))
            {
                if (neg)
                    type &= ~vo_wm_ABOVE;
                else
                    type |= vo_wm_ABOVE;
            } else if (!strcmp(arg, "fullscreen"))
            {
                if (neg)
                    type &= ~vo_wm_FULLSCREEN;
                else
                    type |= vo_wm_FULLSCREEN;
            } else if (!strcmp(arg, "stays_on_top"))
            {
                if (neg)
                    type &= ~vo_wm_STAYS_ON_TOP;
                else
                    type |= vo_wm_STAYS_ON_TOP;
            } else if (!strcmp(arg, "below"))
            {
                if (neg)
                    type &= ~vo_wm_BELOW;
                else
                    type |= vo_wm_BELOW;
            } else if (!strcmp(arg, "netwm"))
            {
                if (neg)
                    type &= ~vo_wm_NETWM;
                else
                    type |= vo_wm_NETWM;
            } else if (!strcmp(arg, "none"))
                return 0;
        }
    }

    return type;
}

void vo_x11_fullscreen(void)
{
    int x, y, w, h;

    if (WinID >= 0 || vo_fs_flip)
        return;

    if (vo_fs)
    {
        // fs->win
        if ( ! (vo_fs_type & vo_wm_FULLSCREEN) ) // not needed with EWMH fs
        {
            x = vo_old_x;
            y = vo_old_y;
            w = vo_old_width;
            h = vo_old_height;
	}

        vo_x11_ewmh_fullscreen(_NET_WM_STATE_REMOVE);   // removes fullscreen state if wm supports EWMH
        vo_fs = VO_FALSE;
    } else
    {
        // win->fs
        vo_x11_ewmh_fullscreen(_NET_WM_STATE_ADD);      // sends fullscreen state to be added if wm supports EWMH

        vo_fs = VO_TRUE;
        if ( ! (vo_fs_type & vo_wm_FULLSCREEN) ) // not needed with EWMH fs
        {
            vo_old_x = vo_dx;
            vo_old_y = vo_dy;
            vo_old_width = vo_dwidth;
            vo_old_height = vo_dheight;
        }
            update_xinerama_info();
            x = xinerama_x;
            y = xinerama_y;
            w = vo_screenwidth;
            h = vo_screenheight;
    }
    {
        long dummy;

        XGetWMNormalHints(mDisplay, vo_window, &vo_hint, &dummy);
        if (!(vo_hint.flags & PWinGravity))
            old_gravity = NorthWestGravity;
        else
            old_gravity = vo_hint.win_gravity;
    }
    if (vo_wm_type == 0 && !(vo_fsmode & 16))
    {
        XUnmapWindow(mDisplay, vo_window);      // required for MWM
        XWithdrawWindow(mDisplay, vo_window, mScreen);
        vo_fs_flip = 1;
    }

    if ( ! (vo_fs_type & vo_wm_FULLSCREEN) ) // not needed with EWMH fs
    {
        vo_x11_decoration(mDisplay, vo_window, (vo_fs) ? 0 : 1);
        vo_x11_sizehint(x, y, w, h, 0);
        vo_x11_setlayer(mDisplay, vo_window, vo_fs);


        XMoveResizeWindow(mDisplay, vo_window, x, y, w, h);
    }
    /* some WMs lose ontop after fullscreen */
    if ((!(vo_fs)) & vo_ontop)
        vo_x11_setlayer(mDisplay, vo_window, vo_ontop);

    XMapRaised(mDisplay, vo_window);
    if ( ! (vo_fs_type & vo_wm_FULLSCREEN) ) // some WMs change window pos on map
        XMoveResizeWindow(mDisplay, vo_window, x, y, w, h);
    XRaiseWindow(mDisplay, vo_window);
    XFlush(mDisplay);
}

void vo_x11_ontop(void)
{
    vo_ontop = (!(vo_ontop));

    vo_x11_setlayer(mDisplay, vo_window, vo_ontop);
}

/*
 * XScreensaver stuff
 */

static int got_badwindow;
static XErrorHandler old_handler;

static int badwindow_handler(Display * dpy, XErrorEvent * error)
{
    if (error->error_code != BadWindow)
        return (*old_handler) (dpy, error);

    got_badwindow = True;
    return 0;
}

static Window find_xscreensaver_window(Display * dpy)
{
    int i;
    Window root = RootWindowOfScreen(DefaultScreenOfDisplay(dpy));
    Window root2, parent, *kids;
    Window retval = 0;
    Atom xs_version;
    unsigned int nkids = 0;

    xs_version = XInternAtom(dpy, "_SCREENSAVER_VERSION", True);

    if (!(xs_version != None &&
          XQueryTree(dpy, root, &root2, &parent, &kids, &nkids) &&
          kids && nkids))
        return 0;

    old_handler = XSetErrorHandler(badwindow_handler);

    for (i = 0; i < nkids; i++)
    {
        Atom type;
        int format;
        unsigned long nitems, bytesafter;
        char *v;
        int status;

        got_badwindow = False;
        status =
            XGetWindowProperty(dpy, kids[i], xs_version, 0, 200, False,
                               XA_STRING, &type, &format, &nitems,
                               &bytesafter, (unsigned char **) &v);
        XSync(dpy, False);
        if (got_badwindow)
            status = BadWindow;

        if (status == Success && type != None)
        {
            retval = kids[i];
            break;
        }
    }
    XFree(kids);
    XSetErrorHandler(old_handler);

    return retval;
}

static Window xs_windowid = 0;
static Atom deactivate;
static Atom screensaver;

static unsigned int time_last;

void xscreensaver_heartbeat(void)
{
    unsigned int time = GetTimerMS();
    XEvent ev;

    if (mDisplay && xs_windowid && (time - time_last) > 30000)
    {
        time_last = time;

        ev.xany.type = ClientMessage;
        ev.xclient.display = mDisplay;
        ev.xclient.window = xs_windowid;
        ev.xclient.message_type = screensaver;
        ev.xclient.format = 32;
        memset(&ev.xclient.data, 0, sizeof(ev.xclient.data));
        ev.xclient.data.l[0] = (long) deactivate;

        mp_msg(MSGT_VO, MSGL_DBG2, "Pinging xscreensaver.\n");
        old_handler = XSetErrorHandler(badwindow_handler);
        XSendEvent(mDisplay, xs_windowid, False, 0L, &ev);
        XSync(mDisplay, False);
        XSetErrorHandler(old_handler);        
    }
}

static void xscreensaver_disable(Display * dpy)
{
    mp_msg(MSGT_VO, MSGL_DBG2, "xscreensaver_disable()\n");

    xs_windowid = find_xscreensaver_window(dpy);
    if (!xs_windowid)
    {
        mp_msg(MSGT_VO, MSGL_INFO, MSGTR_CouldNotFindXScreenSaver);
        return;
    }
    mp_msg(MSGT_VO, MSGL_INFO,
           "xscreensaver_disable: xscreensaver wid=%ld.\n", xs_windowid);

    deactivate = XInternAtom(dpy, "DEACTIVATE", False);
    screensaver = XInternAtom(dpy, "SCREENSAVER", False);
}

static void xscreensaver_enable(void)
{
    xs_windowid = 0;
}

/*
 * End of XScreensaver stuff
 */

void saver_on(Display * mDisplay)
{

#ifdef HAVE_XDPMS
    int nothing;

    if (dpms_disabled)
    {
        if (DPMSQueryExtension(mDisplay, &nothing, &nothing))
        {
            if (!DPMSEnable(mDisplay))
            {                   // restoring power saving settings
                mp_msg(MSGT_VO, MSGL_WARN, "DPMS not available?\n");
            } else
            {
                // DPMS does not seem to be enabled unless we call DPMSInfo
                BOOL onoff;
                CARD16 state;

                DPMSForceLevel(mDisplay, DPMSModeOn);
                DPMSInfo(mDisplay, &state, &onoff);
                if (onoff)
                {
                    mp_msg(MSGT_VO, MSGL_V,
                           "Successfully enabled DPMS\n");
                } else
                {
                    mp_msg(MSGT_VO, MSGL_WARN, "Could not enable DPMS\n");
                }
            }
        }
        dpms_disabled = 0;
    }
#endif

    if (timeout_save)
    {
        int dummy, interval, prefer_blank, allow_exp;

        XGetScreenSaver(mDisplay, &dummy, &interval, &prefer_blank,
                        &allow_exp);
        XSetScreenSaver(mDisplay, timeout_save, interval, prefer_blank,
                        allow_exp);
        XGetScreenSaver(mDisplay, &timeout_save, &interval, &prefer_blank,
                        &allow_exp);
        timeout_save = 0;
    }

    if (stop_xscreensaver)
        xscreensaver_enable();
    if (kdescreensaver_was_running && stop_xscreensaver)
    {
        system
            ("dcop kdesktop KScreensaverIface enable true 2>/dev/null >/dev/null");
        kdescreensaver_was_running = 0;
    }


}

void saver_off(Display * mDisplay)
{

    int interval, prefer_blank, allow_exp;

#ifdef HAVE_XDPMS
    int nothing;

    if (DPMSQueryExtension(mDisplay, &nothing, &nothing))
    {
        BOOL onoff;
        CARD16 state;