[mutter/wip/texture-purge-on-nvidia: 3/66] renderer/native: Check calculated transform when creating view



commit b18aa49c3a7133000b0b1d52d95cc75a156e4131
Author: Jonas Ã…dahl <jadahl gmail com>
Date:   Mon Jul 23 21:36:57 2018 +0200

    renderer/native: Check calculated transform when creating view
    
    The "backends: Move MetaOutput::crtc field into private struct"
    accidentally changed the view transform calculation code to assume that
    "MetaCrtc::transform" corresponds to the transform of the CRTC; so is
    not the case yet; one must calculate the transform from the logical
    monitor, and check whether it is supported by the CRTC using
    meta_monitor_manager_is_transform_handled(). This commit restores the
    old behaviour that doesn't use MetaCrtc::transform when calculating the
    view transform.
    
    Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/216

 src/backends/native/meta-renderer-native.c         | 9 +++++++--
 src/backends/x11/nested/meta-renderer-x11-nested.c | 8 ++++++--
 2 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/src/backends/native/meta-renderer-native.c b/src/backends/native/meta-renderer-native.c
index fc6b22302..8dc0da710 100644
--- a/src/backends/native/meta-renderer-native.c
+++ b/src/backends/native/meta-renderer-native.c
@@ -2720,9 +2720,14 @@ calculate_view_transform (MetaMonitorManager *monitor_manager,
   MetaMonitor *main_monitor;
   MetaOutput *main_output;
   MetaCrtc *crtc;
+  MetaMonitorTransform crtc_transform;
+
   main_monitor = meta_logical_monitor_get_monitors (logical_monitor)->data;
   main_output = meta_monitor_get_main_output (main_monitor);
   crtc = meta_output_get_assigned_crtc (main_output);
+  crtc_transform =
+    meta_monitor_logical_to_crtc_transform (main_monitor,
+                                            logical_monitor->transform);
 
   /*
    * Pick any monitor and output and check; all CRTCs of a logical monitor will
@@ -2731,10 +2736,10 @@ calculate_view_transform (MetaMonitorManager *monitor_manager,
 
   if (meta_monitor_manager_is_transform_handled (monitor_manager,
                                                  crtc,
-                                                 crtc->transform))
+                                                 crtc_transform))
     return META_MONITOR_TRANSFORM_NORMAL;
   else
-    return crtc->transform;
+    return crtc_transform;
 }
 
 static MetaRendererView *
diff --git a/src/backends/x11/nested/meta-renderer-x11-nested.c 
b/src/backends/x11/nested/meta-renderer-x11-nested.c
index 8fdf46b0b..b29b9c69e 100644
--- a/src/backends/x11/nested/meta-renderer-x11-nested.c
+++ b/src/backends/x11/nested/meta-renderer-x11-nested.c
@@ -51,10 +51,14 @@ calculate_view_transform (MetaMonitorManager *monitor_manager,
   MetaMonitor *main_monitor;
   MetaOutput *main_output;
   MetaCrtc *crtc;
+  MetaMonitorTransform crtc_transform;
 
   main_monitor = meta_logical_monitor_get_monitors (logical_monitor)->data;
   main_output = meta_monitor_get_main_output (main_monitor);
   crtc = meta_output_get_assigned_crtc (main_output);
+  crtc_transform =
+    meta_monitor_logical_to_crtc_transform (main_monitor,
+                                            logical_monitor->transform);
   /*
    * Pick any monitor and output and check; all CRTCs of a logical monitor will
    * always have the same transform assigned to them.
@@ -62,10 +66,10 @@ calculate_view_transform (MetaMonitorManager *monitor_manager,
 
   if (meta_monitor_manager_is_transform_handled (monitor_manager,
                                                  crtc,
-                                                 crtc->transform))
+                                                 crtc_transform))
     return META_MONITOR_TRANSFORM_NORMAL;
   else
-    return crtc->transform;
+    return crtc_transform;
 }
 
 static MetaRendererView *


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