player: add --auto-window-resize option

mpv's window resizing logic always automatically resized the window
whenever the video resolution changed (i.e. advancing forward in a
playlist). This simply introduces the option to make this behavior
configurable. Every windowing backend would need to implement this
behavior in their code since a reconfigure event must always be a
resize. The params of the frame changed so you either have to resize the
window to the new size of the params or make the params the same size as
the window. This commit implements it for wayland, win32, and x11.

1 files changed, 13 insertions, 8 deletions

diff --git a/video/out/x11_common.c b/video/out/x11_common.c
index e8054f3b55..0b028b9122 100644
--- a/video/out/x11_common.c
+++ b/video/out/x11_common.c
@@ -1092,9 +1092,9 @@ static void vo_x11_check_net_wm_state_change(struct vo *vo)
             XFree(elems);
         }
 
-        if (opts->window_maximized && !is_maximized && x11->pending_geometry_change) {
+        if (opts->window_maximized && !is_maximized && x11->geometry_change) {
+            x11->geometry_change = false;
             vo_x11_config_vo_window(vo);
-            x11->pending_geometry_change = false;
         }
 
         opts->window_minimized = is_minimized;
@@ -1722,6 +1722,10 @@ void vo_x11_config_vo_window(struct vo *vo)
 
     assert(x11->window);
 
+    // Don't attempt to change autofit/geometry on maximized windows.
+    if (x11->geometry_change && opts->window_maximized)
+        return;
+
     vo_x11_update_screeninfo(vo);
 
     struct vo_win_geometry geo;
@@ -1735,7 +1739,9 @@ void vo_x11_config_vo_window(struct vo *vo)
         rc = (struct mp_rect){0, 0, RC_W(x11->winrc), RC_H(x11->winrc)};
     }
 
-    bool reset_size = x11->old_dw != RC_W(rc) || x11->old_dh != RC_H(rc);
+    bool reset_size = (x11->old_dw != RC_W(rc) || x11->old_dh != RC_H(rc)) &&
+                      (opts->auto_window_resize || x11->geometry_change);
+
     x11->old_dw = RC_W(rc);
     x11->old_dh = RC_H(rc);
 
@@ -1746,6 +1752,8 @@ void vo_x11_config_vo_window(struct vo *vo)
         vo_x11_highlevel_resize(vo, rc);
     }
 
+    x11->geometry_change = false;
+
     if (opts->ontop)
         vo_x11_setlayer(vo, opts->ontop);
 
@@ -1961,11 +1969,8 @@ static void vo_x11_set_geometry(struct vo *vo)
     if (!x11->window)
         return;
 
-    if (x11->opts->window_maximized) {
-        x11->pending_geometry_change = true;
-    } else {
-        vo_x11_config_vo_window(vo);
-    }
+    x11->geometry_change = true;
+    vo_x11_config_vo_window(vo);
 }
 
 bool vo_x11_check_visible(struct vo *vo) {