Store Renderables as non-const pointers or references

[libs/gl.git] / source / simplescene.h

diff --git a/source/simplescene.h b/source/simplescene.h
index db93e169d3b82bae5903fccc8c81ff155d6ff3d9..8b91150ce2199e43142f4d60573718e32a72fc0c 100644 (file)
--- a/source/simplescene.h
+++ b/source/simplescene.h
@@ -8,18 +8,27 @@ namespace Msp {
 namespace GL {
 
 /**
-The simplest possible Scene.  Rendering order is unspecified.
+A simple yet efficient scene.  Rendering order is unspecified.
 */
 class SimpleScene: public Scene
 {
 private:
-       typedef std::set<const Renderable *> RenderableSet;
+       typedef std::set<Renderable *> RenderableSet;
+       typedef std::vector<Renderable *> RenderableArray;
 
        RenderableSet renderables;
+       mutable RenderableArray cache;
 
 public:
-       virtual void add(const Renderable &);
-       virtual void remove(const Renderable &);
+       virtual void add(Renderable &);
+       virtual void remove(Renderable &);
+
+private:
+       void populate_cache() const;
+
+public:
+       virtual void setup_frame() const;
+       virtual void finish_frame() const;
 
        using Scene::render;
        virtual void render(Renderer &, const Tag & = Tag()) const;