backends/native: Pass KMS file path to renderer

The KMS file path will later be used for EGLDevice based rendering.

https://bugzilla.gnome.org/show_bug.cgi?id=773629

src/backends/native/meta-backend-native.c

@@ -290,11 +290,13 @@ meta_backend_native_create_renderer (MetaBackend *backend)
   MetaBackendNativePrivate *priv =
     meta_backend_native_get_instance_private (native);
   int kms_fd;
+  const char *kms_file_path;
   GError *error = NULL;
   MetaRendererNative *renderer_native;
 
   kms_fd = meta_launcher_get_kms_fd (priv->launcher);
-  renderer_native = meta_renderer_native_new (kms_fd, &error);
+  kms_file_path = meta_launcher_get_kms_file_path (priv->launcher);
+  renderer_native = meta_renderer_native_new (kms_fd, kms_file_path, &error);
   if (!renderer_native)
     {
       meta_warning ("Failed to create renderer: %s\n", error->message);

src/backends/native/meta-renderer-native.c

@@ -58,6 +58,7 @@ enum
   PROP_0,
 
   PROP_KMS_FD,
+  PROP_KMS_FILE_PATH,
 
   PROP_LAST
 };
@@ -85,6 +86,7 @@ struct _MetaRendererNative
   MetaRenderer parent;
 
   int kms_fd;
+  char *kms_file_path;
 
   EGLDisplay egl_display;
 
@@ -1204,6 +1206,9 @@ meta_renderer_native_get_property (GObject    *object,
     case PROP_KMS_FD:
       g_value_set_int (value, renderer_native->kms_fd);
       break;
+    case PROP_KMS_FILE_PATH:
+      g_value_set_string (value, renderer_native->kms_file_path);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -1223,6 +1228,9 @@ meta_renderer_native_set_property (GObject      *object,
     case PROP_KMS_FD:
       renderer_native->kms_fd = g_value_get_int (value);
       break;
+    case PROP_KMS_FILE_PATH:
+      renderer_native->kms_file_path = g_strdup (g_value_get_string (value));
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -1236,6 +1244,8 @@ meta_renderer_native_finalize (GObject *object)
 
   g_clear_pointer (&renderer_native->gbm.device, gbm_device_destroy);
 
+  g_free (renderer_native->kms_file_path);
+
   G_OBJECT_CLASS (meta_renderer_native_parent_class)->finalize (object);
 }
 
@@ -1313,16 +1323,26 @@ meta_renderer_native_class_init (MetaRendererNativeClass *klass)
                                                      0, G_MAXINT, 0,
                                                      G_PARAM_READWRITE |
                                                      G_PARAM_CONSTRUCT_ONLY));
+  g_object_class_install_property (object_class,
+                                   PROP_KMS_FILE_PATH,
+                                   g_param_spec_string ("kms-file-path",
+                                                        "KMS file path",
+                                                        "The KMS file path",
+                                                        NULL,
+                                                        G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT_ONLY));
 }
 
 MetaRendererNative *
-meta_renderer_native_new (int      kms_fd,
+meta_renderer_native_new (int         kms_fd,
-                          GError **error)
+                          const char *kms_file_path,
+                          GError    **error)
 {
   MetaRendererNative *renderer_native;
 
   renderer_native = g_object_new (META_TYPE_RENDERER_NATIVE,
                                   "kms-fd", kms_fd,
+                                  "kms-file-path", kms_file_path,
                                   NULL);
   if (!g_initable_init (G_INITABLE (renderer_native), NULL, error))
     {

src/backends/native/meta-renderer-native.h

@@ -35,8 +35,9 @@ G_DECLARE_FINAL_TYPE (MetaRendererNative, meta_renderer_native,
                       META, RENDERER_NATIVE,
                       MetaRenderer)
 
-MetaRendererNative *meta_renderer_native_new (int      kms_fd,
+MetaRendererNative *meta_renderer_native_new (int         kms_fd,
-                                              GError **error);
+                                              const char *kms_file_path,
+                                              GError    **error);
 
 struct gbm_device * meta_renderer_native_get_gbm (MetaRendererNative *renderer_native);