[mutter] cursor-renderer-native: Take panel-orientation into account for sprite transform

[Jonas Ådahl <jadahl src gnome org>]

commit da600b8400e4e42b6cd3fe4431a7b9fdf47fc553
Author: Hans de Goede <hdegoede redhat com>
Date:   Fri Mar 27 14:57:27 2020 +0100

    cursor-renderer-native: Take panel-orientation into account for sprite transform
    
    When calculating the transform we should apply to the cursor sprite
    before uploading it to the cursor plane, we must also take into
    account non upright mounted LCD panels.
    
    Otherwise the cursor ends up 90 degrees rotated on devices where the
    LCD panel is mounted 90 degrees rotated in its enclosure.
    
    This commit fixes this by calling meta_monitor_logical_to_crtc_transform
    in get_common_crtc_sprite_transform_for_logical_monitors to adjust the
    transform for each Monitor in the LogicalMonitor.
    
    Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1123
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1153

 src/backends/native/meta-cursor-renderer-native.c | 24 +++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)
---
diff --git a/src/backends/native/meta-cursor-renderer-native.c 
b/src/backends/native/meta-cursor-renderer-native.c
index 62cd54b8a..2450e19f2 100644
--- a/src/backends/native/meta-cursor-renderer-native.c
+++ b/src/backends/native/meta-cursor-renderer-native.c
@@ -823,22 +823,30 @@ get_common_crtc_sprite_transform_for_logical_monitors (MetaCursorRenderer   *ren
       MetaLogicalMonitor *logical_monitor = l->data;
       graphene_rect_t logical_monitor_rect =
         meta_rectangle_to_graphene_rect (&logical_monitor->rect);
-      MetaMonitorTransform tmp_transform;
+      MetaMonitorTransform logical_transform, tmp_transform;
+      GList *monitors, *l_mon;
 
       if (!graphene_rect_intersection (&cursor_rect,
                                        &logical_monitor_rect,
                                        NULL))
         continue;
 
-      tmp_transform = meta_monitor_transform_relative_transform (
-        meta_cursor_sprite_get_texture_transform (cursor_sprite),
-        meta_logical_monitor_get_transform (logical_monitor));
+      logical_transform = meta_logical_monitor_get_transform (logical_monitor);
+      monitors = meta_logical_monitor_get_monitors (logical_monitor);
+      for (l_mon = monitors; l_mon; l_mon = l_mon->next)
+        {
+          MetaMonitor *monitor = l_mon->data;
 
-      if (has_visible_crtc_sprite && transform != tmp_transform)
-        return FALSE;
+          tmp_transform = meta_monitor_transform_relative_transform (
+            meta_cursor_sprite_get_texture_transform (cursor_sprite),
+            meta_monitor_logical_to_crtc_transform (monitor, logical_transform));
 
-      has_visible_crtc_sprite = TRUE;
-      transform = tmp_transform;
+          if (has_visible_crtc_sprite && transform != tmp_transform)
+            return FALSE;
+
+          has_visible_crtc_sprite = TRUE;
+          transform = tmp_transform;
+        }
     }
 
   if (!has_visible_crtc_sprite)