Added infrastructure to run gpu demos under Pepper3D. Created a Demo class th...

gpu/demos/app_framework/application.h

-// Copyright (c) 2006-2009 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.
-
-// Base class for gles2 applications using command buffer.
-
-#ifndef GPU_DEMOS_APP_FRAMEWORK_APPLICATION_H_
-#define GPU_DEMOS_APP_FRAMEWORK_APPLICATION_H_
-
-#include "base/at_exit.h"
-#include "base/message_loop.h"
-#include "base/time.h"
-
-#include "gpu/demos/app_framework/platform.h"
-
-namespace gpu_demos {
-
-// Acts as a base class for GLES2 applications using command buffer.
-// The derived calls needs to call InitRenderContext() to create a render
-// surface and initialize a rendering context. Currently it only creates
-// an on-screen window. It will be extended to support pepper/nacl plugin
-// when pepper 3D api is in place.
-class Application {
- public:
-  Application();
-  virtual ~Application();
-
-  // Enters the event processing loop.
-  void MainLoop();
-  void OnPaint();
-
- protected:
-  // Returns the width of rendering surface.
-  inline int width() const { return width_; }
-  // Returns the height of rendering surface.
-  inline int height() const { return height_; }
-
-  bool InitRenderContext();
-
-  // The framework calls this function for the derived classes to do custom
-  // rendering. There is no default implementation. It must be defined by the
-  // derived classes. The elapsed_sec param represents the time elapsed
-  // (in seconds) after Draw was called the last time. It can be used to
-  // make the application frame-rate independent. It is 0.0f for the
-  // first draw call.
-  virtual void Draw(float elapsed_sec) = 0;
-
- private:
-  // Creates a native on-screen window.
-  NativeWindowHandle CreateNativeWindow();
-
-  int width_;
-  int height_;
-  NativeWindowHandle window_handle_;
-
-  // Time at which draw was called last.
-  base::Time last_draw_time_;
-
-  // The following two variables are just needed to satisfy
-  // the assumption that we are running inside a browser.
-  base::AtExitManager at_exit_manager_;
-  MessageLoopForUI message_loop_;
-
-  DISALLOW_COPY_AND_ASSIGN(Application);
-};
-
-}  // namespace gpu_demos
-#endif  // GPU_DEMOS_APP_FRAMEWORK_APPLICATION_H_