[mutter] monitor: Move logical <-> CRTC transform helpers to MetaOutput

[Robert Mader <rmader src gnome org>]

commit ff59b5d04181acb728511c3510c2f153330dff34
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Feb 18 11:45:26 2020 +0100

    monitor: Move logical <-> CRTC transform helpers to MetaOutput
    
    So that we avoid leaking the internal guts of MetaOutput into
    MetaMonitor, while also making it possible to use it without a
    MetaMonitor at hand.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/1064

 src/backends/meta-monitor.c |  6 +-----
 src/backends/meta-output.c  | 12 ++++++++++++
 src/backends/meta-output.h  |  7 +++++--
 3 files changed, 18 insertions(+), 7 deletions(-)
---
diff --git a/src/backends/meta-monitor.c b/src/backends/meta-monitor.c
index 768b787ac..f4d71f047 100644
--- a/src/backends/meta-monitor.c
+++ b/src/backends/meta-monitor.c
@@ -467,12 +467,8 @@ meta_monitor_crtc_to_logical_transform (MetaMonitor          *monitor,
                                         MetaMonitorTransform  transform)
 {
   MetaOutput *output = meta_monitor_get_main_output (monitor);
-  MetaMonitorTransform inverted_paniel_orientation_transform;
 
-  inverted_paniel_orientation_transform =
-    meta_monitor_transform_invert (output->panel_orientation_transform);
-  return meta_monitor_transform_transform (transform,
-                                           inverted_paniel_orientation_transform);
+  return meta_output_crtc_to_logical_transform (output, transform);
 }
 
 static void
diff --git a/src/backends/meta-output.c b/src/backends/meta-output.c
index 761435b59..6a1e7c803 100644
--- a/src/backends/meta-output.c
+++ b/src/backends/meta-output.c
@@ -73,6 +73,18 @@ meta_output_logical_to_crtc_transform (MetaOutput           *output,
                                            panel_orientation_transform);
 }
 
+MetaMonitorTransform
+meta_output_crtc_to_logical_transform (MetaOutput           *output,
+                                       MetaMonitorTransform  transform)
+{
+  MetaMonitorTransform inverted_panel_orientation_transform;
+
+  inverted_panel_orientation_transform =
+    meta_monitor_transform_invert (output->panel_orientation_transform);
+  return meta_monitor_transform_transform (transform,
+                                           inverted_panel_orientation_transform);
+}
+
 static void
 meta_output_dispose (GObject *object)
 {
diff --git a/src/backends/meta-output.h b/src/backends/meta-output.h
index 2372eb3ac..1c62fc1d4 100644
--- a/src/backends/meta-output.h
+++ b/src/backends/meta-output.h
@@ -129,10 +129,13 @@ void meta_output_assign_crtc (MetaOutput *output,
 META_EXPORT_TEST
 void meta_output_unassign_crtc (MetaOutput *output);
 
+META_EXPORT_TEST
+MetaCrtc * meta_output_get_assigned_crtc (MetaOutput *output);
+
 MetaMonitorTransform meta_output_logical_to_crtc_transform (MetaOutput           *output,
                                                             MetaMonitorTransform  transform);
 
-META_EXPORT_TEST
-MetaCrtc * meta_output_get_assigned_crtc (MetaOutput *output);
+MetaMonitorTransform meta_output_crtc_to_logical_transform (MetaOutput           *output,
+                                                            MetaMonitorTransform  transform);
 
 #endif /* META_OUTPUT_H */