renderer-view/native: Allocate backend specific ClutterFrame

This will carry an on-demand created MetaKmsUpdate.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2855>

clutter/clutter/clutter-frame-clock.c

@@ -735,7 +735,7 @@ clutter_frame_clock_dispatch (ClutterFrameClock *frame_clock,
   if (iface->new_frame)
     frame = iface->new_frame (frame_clock, frame_clock->listener.user_data);
   if (!frame)
-    frame = clutter_frame_new ();
+    frame = clutter_frame_new (ClutterFrame);
 
   frame->frame_count = frame_count;
   frame->has_target_presentation_time = frame_clock->is_next_presentation_time_valid;

clutter/clutter/clutter-frame-private.h

@@ -34,7 +34,10 @@ struct _ClutterFrame
 };
 
 CLUTTER_EXPORT
-ClutterFrame * clutter_frame_new (void);
+gpointer clutter_frame_new (size_t size);
+
+#define clutter_frame_new(FrameType) \
+  ((FrameType *) (clutter_frame_new (sizeof (FrameType))))
 
 ClutterFrameResult clutter_frame_get_result (ClutterFrame *frame);
 

clutter/clutter/clutter-frame.c

@@ -35,12 +35,14 @@ clutter_frame_unref (ClutterFrame *frame)
     g_free (frame);
 }
 
-ClutterFrame *
-clutter_frame_new (void)
+gpointer
+(clutter_frame_new) (size_t size)
 {
   ClutterFrame *frame;
 
-  frame = g_new0 (ClutterFrame, 1);
+  g_assert (size >= sizeof (ClutterFrame));
+
+  frame = g_malloc0 (size);
   g_ref_count_init (&frame->ref_count);
 
   return frame;

clutter/clutter/clutter-mutter.h

@@ -29,6 +29,7 @@
 #include "clutter-backend-private.h"
 #include "clutter-damage-history.h"
 #include "clutter-event-private.h"
+#include "clutter-frame-private.h"
 #include "clutter-input-device-private.h"
 #include "clutter-input-pointer-a11y-private.h"
 #include "clutter-macros.h"

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

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2022 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include "backends/native/meta-frame-native.h"
+
+#include "clutter/clutter-mutter.h"
+
+struct _MetaFrameNative
+{
+  ClutterFrame base;
+};
+
+MetaFrameNative *
+meta_frame_native_new (void)
+{
+  return clutter_frame_new (MetaFrameNative);
+}

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

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2022 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_FRAME_NATIVE_H
+#define META_FRAME_NATIVE_H
+
+typedef struct _MetaFrameNative MetaFrameNative;
+
+MetaFrameNative * meta_frame_native_new (void);
+
+#endif /* META_FRAME_NATIVE_H */

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

@@ -24,6 +24,8 @@
 
 #include "backends/native/meta-renderer-view-native.h"
 
+#include "backends/native/meta-frame-native.h"
+
 struct _MetaRendererViewNative
 {
   MetaRendererView parent;
@@ -32,9 +34,18 @@ struct _MetaRendererViewNative
 G_DEFINE_TYPE (MetaRendererViewNative, meta_renderer_view_native,
                META_TYPE_RENDERER_VIEW)
 
+static ClutterFrame *
+meta_renderer_view_native_new_frame (ClutterStageView *stage_view)
+{
+  return (ClutterFrame *) meta_frame_native_new ();
+}
+
 static void
 meta_renderer_view_native_class_init (MetaRendererViewNativeClass *klass)
 {
+  ClutterStageViewClass *stage_view_class = CLUTTER_STAGE_VIEW_CLASS (klass);
+
+  stage_view_class->new_frame = meta_renderer_view_native_new_frame;
 }
 
 static void

src/meson.build

@@ -743,6 +743,8 @@ if have_native_backend
     'backends/native/meta-drm-buffer.h',
     'backends/native/meta-gpu-kms.c',
     'backends/native/meta-gpu-kms.h',
+    'backends/native/meta-frame-native.c',
+    'backends/native/meta-frame-native.h',
     'backends/native/meta-input-device-native.c',
     'backends/native/meta-input-device-native.h',
     'backends/native/meta-input-device-tool-native.c',