VAAPI-X11: Workaround for X11 window resize updates.

Query the window size inside Manage() to catch changes. The parent
window does not forward resizes to the client.

modules/codec/avcodec/vaapi_x11.c

@@ -333,6 +333,27 @@ static vout_window_t *MakeWindow (vout_display_t *vd)
     return wnd;
 }
 
+static int GetWindowSize(vout_display_t *vd, Display *dpy,
+            Window window, int *px, int *py,
+            unsigned int *pwidth, unsigned int *pheight)
+{
+    vout_display_sys_t *sys = vd->sys;
+    Status status = 0;
+    Window root_window;
+    unsigned int bw, depth;
+
+    sys->conn->lock();
+    if ((window != None) || (window != BadDrawable))
+    {
+        status = XGetGeometry(dpy, window,
+                              &root_window,
+                              px, py, pwidth, pheight,
+                              &bw, &depth);
+    }
+    sys->conn->unlock();
+    return (status == 0) ? VLC_EGENERIC : VLC_SUCCESS;
+}
+
 static Screen *FindScreen(vout_display_t *vd, Display *dpy,
             int *px, int *py, unsigned int *pnum, unsigned int *pdepth,
             unsigned int *pwidth, unsigned int *pheight)
@@ -401,6 +422,7 @@ static Window CreateWindow(vout_display_t *vd, Display *dpy, Screen *screen)
     vout_display_sys_t *sys = vd->sys;
     assert(screen);
 
+    sys->conn->lock();
     int scr = XScreenNumberOfScreen(screen);
 
     XVisualInfo visualInfo;
@@ -426,35 +448,53 @@ static Window CreateWindow(vout_display_t *vd, Display *dpy, Screen *screen)
                                   0, sys->geo.depth,
                                   InputOutput,
                                   vi->visual, xswa_mask, &xswa);
-    if (window == None)
-    {
+    switch (window)
+    {
+        case None:
+        case BadAlloc:
+        case BadColor:
+        case BadCursor:
+        case BadMatch:
+        case BadPixmap:
+        case BadValue:
+        case BadWindow:
             XFree(vi);
-        return None;
+            goto error;
+        default:
+            break;
     }
 
     if (vi != &visualInfo)
         XFree(vi);
 
     /* */
-    long mask = (ButtonPressMask | ButtonReleaseMask | PointerMotionMask |
-                 ResizeRedirectMask | StructureNotifyMask | SubstructureRedirectMask |
+    long mask = (PointerMotionMask | StructureNotifyMask |
                  ExposureMask | VisibilityChangeMask);
+    if (var_InheritBool(vd, "mouse-events"))
+        mask |= (ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
     int err = XSelectInput(dpy, window, mask);
     if (err == BadWindow)
-        return None;
+        goto error;
 
     XMapWindow(dpy, window);
     WaitEvent(dpy, window, MapNotify);
     WaitEvent(dpy, window, Expose); /* XXX: workaround an XvBA init bug */
-
-    XFlush(dpy);
+    sys->conn->unlock();
     return window;
+
+error:
+    sys->conn->unlock();
+    return None;
 }
 
 static void DestroyWindow(Display *dpy, Window window)
 {
+    /* use unlocked */
     XUnmapWindow(dpy, window);
     WaitEvent(dpy, window, UnmapNotify);
+    int err = XSelectInput(dpy, window, NoEventMask);
+    if (err != BadWindow)
+        XFlush(dpy);
     XDestroyWindow(dpy, window);
 }
 
@@ -469,17 +509,20 @@ static Cursor CreateBlankCursor(vout_display_t *vd, Display *dpy,
     XColor dummy;
     static char bm_no_data[] = {0, 0, 0, 0, 0, 0, 0, 0};
 
+    sys->conn->lock();
     int scr = XScreenNumberOfScreen(screen);
     cmap = DefaultColormap(dpy, scr);
     XAllocNamedColor(dpy, cmap, "black", &sys->black, &dummy);
     sys->bitmap = XCreateBitmapFromData(dpy, sys->window, bm_no_data, 8, 8);
     no_ptr = XCreatePixmapCursor(dpy, sys->bitmap, sys->bitmap, &sys->black, &sys->black, 0, 0);
+    sys->conn->unlock();
     return no_ptr;
 }
 
 static void DestroyBlankCursor(vout_display_t *vd, Display *dpy,
                                Window window, Screen *screen)
 {
+    /* use unlocked */
     vout_display_sys_t *sys = vd->sys;
     assert(screen);
 
@@ -607,20 +650,22 @@ void CloseVaapiX11 (vlc_object_t *obj)
     {
         XFlush(sys->conn->p_x11);
         XSync(sys->conn->p_x11, False);
-    }
 
-    if (sys->blank_cursor != None)
+        if ((sys->window != None) && (sys->blank_cursor != None))
             DestroyBlankCursor(vd, sys->conn->p_x11,
                                sys->window, sys->screen);
 
         if (sys->window != None)
             DestroyWindow(sys->conn->p_x11, sys->window);
+    }
+
     sys->blank_cursor = None;
     sys->window = None;
     sys->conn->unlock();
 
     if (sys->embed)
         vout_display_DeleteWindow (vd, sys->embed);
+    sys->embed = NULL;
 
     /* Cleanup cache */
     vlc_mutex_destroy(&sys->cache_lock);
@@ -695,8 +740,8 @@ static int Control (vout_display_t *vd, int query, va_list ap)
                 is_forced = (bool)va_arg (ap, int);
         }
 
-        msg_Info(vd, "display size %dx%d %dx%d",
-                 0, 0, cfg->display.width, cfg->display.height);
+//        msg_Dbg(vd, "display size %dx%d %dx%d",
+//                 0, 0, cfg->display.width, cfg->display.height);
 
         /* */
         if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE
@@ -707,24 +752,41 @@ static int Control (vout_display_t *vd, int query, va_list ap)
                                 cfg->display.width, cfg->display.height))
             return VLC_EGENERIC;
 
+        /* FIXME: updating picture geometry */
+#if 0
         vout_display_place_t place;
         vout_display_PlacePicture(&place, source, cfg, false);
 
-        /* */
         sys->geo.x = place.x;
         sys->geo.y = place.y;
         sys->geo.width = place.width;
         sys->geo.height = place.height;
+#else
+        VLC_UNUSED(source);
 
-        XWindowChanges changes = { .x = place.x, .y = place.y,
-                  .width = place.width, .height = place.height };
+        sys->geo.x = 0;
+        sys->geo.y = 0;
+        sys->geo.width = cfg->display.width;
+        sys->geo.height = cfg->display.height;
+#endif
+        if (sys->window == None)
+            return VLC_EGENERIC;
+
+        sys->conn->lock();
+        XWindowChanges changes = { .x = sys->geo.x, .y = sys->geo.y,
+                  .width = sys->geo.width, .height = sys->geo.height };
         int err = XConfigureWindow(sys->conn->p_x11, sys->window,
                          CWX | CWY | CWWidth | CWHeight, &changes);
         if (err == BadMatch || err == BadValue || err == BadWindow)
+        {
+            sys->conn->unlock();
             return VLC_EGENERIC;
+        }
+        XFlush(sys->conn->p_x11);
+        sys->conn->unlock();
 
-        msg_Info(vd, "New window size %dx%d %dx%d",
-                 place.x, place.y, place.width, place.height);
+        msg_Dbg(vd, "New window size %dx%d %dx%d",
+                 sys->geo.x, sys->geo.y, sys->geo.width, sys->geo.height);
         return VLC_SUCCESS;
     }
     case VOUT_DISPLAY_RESET_PICTURES:
@@ -737,16 +799,17 @@ static int Control (vout_display_t *vd, int query, va_list ap)
      * vout_display_t::info.b_hide_mouse is false */
     case VOUT_DISPLAY_HIDE_MOUSE:
     {
+        sys->conn->lock();
         int err = XDefineCursor(sys->conn->p_x11, sys->window,
                                 sys->blank_cursor);
+        sys->conn->unlock();
         if (err == BadAlloc || err == BadWindow || err == BadCursor)
             return VLC_EGENERIC;
-
         return VLC_SUCCESS;
     }
 
     default:
-        msg_Err (vd, "Unknown request in XCB vout display");
+        msg_Err (vd, "Unknown request in VAAPI-X11 vout display");
         return VLC_EGENERIC;
     }
 }
@@ -776,7 +839,9 @@ static int HandleEvent(vout_display_t *vd, Display *dpy, XEvent *event,
             vout_display_place_t place;
 
             /* show the default cursor */
+            sys->conn->lock();
             XUndefineCursor(dpy, sys->window);
+            sys->conn->unlock();
 
             /* TODO it could be saved */
             vout_display_PlacePicture (&place, &vd->source, vd->cfg, false);
@@ -823,7 +888,9 @@ static int HandleEvent(vout_display_t *vd, Display *dpy, XEvent *event,
         case DestroyNotify:
             vout_display_SendEventClose(vd);
             break;
+        case CreateNotify:
         case Expose:
+        case MapNotify:
         case MappingNotify:
             break;
         default:
@@ -837,12 +904,42 @@ static void Manage(vout_display_t *vd)
 {
     vout_display_sys_t *sys = vd->sys;
 
-    while (XPending(sys->conn->p_x11))
+    /* FIXME: workaround for not receiving updates from X11 when resizing */
+    int x, y;
+    unsigned int w, h;
+    if (GetWindowSize(vd, sys->conn->p_x11, sys->embed->handle.xid,
+                       &x, &y, &w, &h) == VLC_SUCCESS)
+    {
+        if (sys->geo.width != w || sys->geo.height != h)
+        {
+            sys->geo.y = y;
+            sys->geo.x = x;
+            sys->geo.width = w;
+            sys->geo.height = h;
+            vout_display_SendEventDisplaySize(vd, w, h, vd->cfg->is_fullscreen);
+        }
+    }
+
+    /* */
+    int num = 0;
+    do
+    {
+        if (sys->window == None)
+            break;
+
+        sys->conn->lock();
+        num = XPending(sys->conn->p_x11);
+        if (num <= 0)
         {
+            sys->conn->unlock();
+            break;
+        }
         XEvent event;
         XNextEvent(sys->conn->p_x11, &event);
+        sys->conn->unlock();
+
         HandleEvent(vd, sys->conn->p_x11, &event, &sys->visible);
-    }
+    } while(num > 0);
 }
 
 static VASubpictureID SubpictureCreate(vout_display_t *vd, const subpicture_t *subpicture,
@@ -1410,6 +1507,9 @@ static void DisplayPicture(vout_display_t *vd, picture_t *pic, subpicture_t *sub
     if (!sys->visible)
         goto out;
 
+    if (sys->window == None)
+        goto out;
+
     assert(pic->format.i_chroma == VLC_CODEC_VAAPI_SURFACE);
 
     if ((pic->p_sys == NULL) || (pic->p_sys->i_id == VA_INVALID_SURFACE))