From 63dca26fac961c2db7349bbd8b746eda2efadcf2 Mon Sep 17 00:00:00 2001
From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Date: Mon, 27 Aug 2018 15:08:08 -0400
Subject: kmssink: Add 'plane-properties' property

This is similar to 'connector-properties' but will change
selected plane properties instead.

https://bugzilla.gnome.org/show_bug.cgi?id=797027
---
 sys/kms/gstkmssink.c | 44 +++++++++++++++++++++++++++++++++++++++++++-
 sys/kms/gstkmssink.h |  1 +
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/sys/kms/gstkmssink.c b/sys/kms/gstkmssink.c
index 041eda500..651a8eb77 100644
--- a/sys/kms/gstkmssink.c
+++ b/sys/kms/gstkmssink.c
@@ -89,7 +89,8 @@ enum
   PROP_DISPLAY_WIDTH,
   PROP_DISPLAY_HEIGHT,
   PROP_CONNECTOR_PROPS,
-  PROP_N
+  PROP_PLANE_PROPS,
+  PROP_N,
 };
 
 static GParamSpec *g_properties[PROP_N] = { NULL, };
@@ -659,7 +660,20 @@ gst_kms_sink_update_connector_properties (GstKMSSink * self)
   gst_kms_sink_update_properties (&iter, self->connector_props);
 }
 
+static void
+gst_kms_sink_update_plane_properties (GstKMSSink * self)
+{
+  SetPropsIter iter;
+
+  if (!self->plane_props)
+    return;
+
+  iter.self = self;
+  iter.obj_id = self->plane_id;
+  iter.obj_type = DRM_MODE_OBJECT_PLANE;
+  iter.obj_type_str = "plane";
 
+  gst_kms_sink_update_properties (&iter, self->plane_props);
 }
 
 static gboolean
@@ -771,6 +785,7 @@ retry_find_plane:
   g_object_notify_by_pspec (G_OBJECT (self), g_properties[PROP_DISPLAY_HEIGHT]);
 
   gst_kms_sink_update_connector_properties (self);
+  gst_kms_sink_update_plane_properties (self);
 
   ret = TRUE;
 
@@ -1710,6 +1725,16 @@ gst_kms_sink_set_property (GObject * object, guint prop_id,
 
       break;
     }
+    case PROP_PLANE_PROPS:{
+      const GstStructure *s = gst_value_get_structure (value);
+
+      g_clear_pointer (&sink->plane_props, gst_structure_free);
+
+      if (s)
+        sink->plane_props = gst_structure_copy (s);
+
+      break;
+    }
     default:
       if (!gst_video_overlay_set_property (object, PROP_N, prop_id, value))
         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@@ -1757,6 +1782,9 @@ gst_kms_sink_get_property (GObject * object, guint prop_id,
     case PROP_CONNECTOR_PROPS:
       gst_value_set_structure (value, sink->connector_props);
       break;
+    case PROP_PLANE_PROPS:
+      gst_value_set_structure (value, sink->plane_props);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -1773,6 +1801,7 @@ gst_kms_sink_finalize (GObject * object)
   g_clear_pointer (&sink->bus_id, g_free);
   gst_poll_free (sink->poll);
   g_clear_pointer (&sink->connector_props, gst_structure_free);
+  g_clear_pointer (&sink->plane_props, gst_structure_free);
 
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
@@ -1927,6 +1956,19 @@ gst_kms_sink_class_init (GstKMSSinkClass * klass)
       "Additionnal properties for the connector",
       GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 
+  /**
+   * kmssink:plane-properties:
+   *
+   * Additional properties for the plane. Keys are strings and values
+   * unsigned 64 bits integers.
+   *
+   * Since: 1.16
+   */
+  g_properties[PROP_PLANE_PROPS] =
+      g_param_spec_boxed ("plane-properties", "Connector Plane",
+      "Additionnal properties for the plane",
+      GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
   g_object_class_install_properties (gobject_class, PROP_N, g_properties);
 
   gst_video_overlay_install_properties (gobject_class, PROP_N);
diff --git a/sys/kms/gstkmssink.h b/sys/kms/gstkmssink.h
index bb978bcd4..778c51c8b 100644
--- a/sys/kms/gstkmssink.h
+++ b/sys/kms/gstkmssink.h
@@ -66,6 +66,7 @@ struct _GstKMSSink {
 
   gboolean modesetting_enabled;
   GstStructure *connector_props;
+  GstStructure *plane_props;
 
   GstVideoInfo vinfo;
   GstCaps *allowed_caps;
-- 
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