--- /dev/null
+/*
+ * Copyright (C) 2016 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ANBOX_GRAPHICS_LAYER_COMPOSER_H_
+#define ANBOX_GRAPHICS_LAYER_COMPOSER_H_
+
+#include "anbox/graphics/renderer.h"
+
+#include <memory>
+#include <map>
+
+namespace anbox {
+namespace wm {
+class Manager;
+class Window;
+} // namespace wm
+namespace graphics {
+class LayerComposer {
+ public:
+ class Strategy {
+ public:
+ typedef std::map<std::shared_ptr<wm::Window>, RenderableList> WindowRenderableList;
+
+ virtual ~Strategy() {}
+ virtual WindowRenderableList process_layers(const RenderableList &renderables) = 0;
+ };
+
+ LayerComposer(const std::shared_ptr<Renderer> renderer,
+ const std::shared_ptr<Strategy> &strategy);
+ ~LayerComposer();
+
+ void submit_layers(const RenderableList &renderables);
+
+ private:
+ std::shared_ptr<Renderer> renderer_;
+ std::shared_ptr<Strategy> strategy_;
+};
+} // namespace graphics
+} // namespace anbox
+
+#endif