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

[Jonas Ådahl <jadahl src gnome org>]

commit 383ac76d00619ba4db6fac957dcbfaa921f333b1
Author: Hans de Goede <hdegoede redhat com>
Date:   Fri Oct 6 14:48:32 2017 +0200

    cursor-renderer-native: Take panel-orientation into account
    
    Even if the logical_monitor config does not have an active transform,
    we might still be doing a transform under the hood to compensate for
    panel-orientation. Check for this and fall back to the sw cursor if this
    is the case.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=782294

 src/backends/native/meta-cursor-renderer-native.c |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)
---
diff --git a/src/backends/native/meta-cursor-renderer-native.c 
b/src/backends/native/meta-cursor-renderer-native.c
index 30342b5..b28d26c 100644
--- a/src/backends/native/meta-cursor-renderer-native.c
+++ b/src/backends/native/meta-cursor-renderer-native.c
@@ -465,6 +465,7 @@ cursor_over_transformed_logical_monitor (MetaCursorRenderer *renderer,
       MetaRectangle logical_monitor_layout;
       ClutterRect logical_monitor_rect;
       MetaMonitorTransform transform;
+      GList *monitors, *l_mon;
 
       logical_monitor_layout =
         meta_logical_monitor_get_layout (logical_monitor);
@@ -475,9 +476,17 @@ cursor_over_transformed_logical_monitor (MetaCursorRenderer *renderer,
                                       NULL))
         continue;
 
-      transform = meta_logical_monitor_get_transform (logical_monitor);
-      if (transform != META_MONITOR_TRANSFORM_NORMAL)
-        return TRUE;
+      monitors = meta_logical_monitor_get_monitors (logical_monitor);
+      for (l_mon = monitors; l_mon; l_mon = l_mon->next)
+        {
+          MetaMonitor *monitor = l_mon->data;
+
+          transform = meta_logical_monitor_get_transform (logical_monitor);
+          /* Get transform corrected for LCD panel-orientation. */
+          transform = meta_monitor_logical_to_crtc_transform (monitor, transform);
+          if (transform != META_MONITOR_TRANSFORM_NORMAL)
+            return TRUE;
+        }
     }
 
   return FALSE;