Initial checkin of the compositor_model_bench tool

gpu/tools/compositor_model_bench/render_models.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Define the interface for a generic simulation, and a factory method for
+// instantiating different models.
+
+#ifndef GPU_TOOLS_COMPOSITOR_MODEL_BENCH_RENDER_MODELS_H_
+#define GPU_TOOLS_COMPOSITOR_MODEL_BENCH_RENDER_MODELS_H_
+
+#include "gpu/tools/compositor_model_bench/render_tree.h"
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+
+enum RenderModel {
+  ForwardRenderModel
+};
+
+const char* ModelToString(RenderModel m);
+
+class RenderModelSimulator {
+ public:
+  virtual ~RenderModelSimulator();
+  virtual void Update() = 0;
+  virtual void Resize(int width, int height) = 0;
+
+ protected:
+  explicit RenderModelSimulator(RenderNode* root);
+  scoped_ptr<RenderNode> root_;
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(RenderModelSimulator);
+};
+
+RenderModelSimulator* ConstructSimulationModel(RenderModel model,
+                                               RenderNode* render_tree_root,
+                                               int window_width,
+                                               int window_height);
+
+#endif  // GPU_TOOLS_COMPOSITOR_MODEL_BENCH_RENDER_MODELS_H_
+