content/browser/renderer_host/image_transport_factory_android.h

// Copyright (c) 2012 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.

#ifndef CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_ANDROID_H_
#define CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_ANDROID_H_

#include "base/memory/scoped_ptr.h"
#include "content/common/content_export.h"
#include "ui/gfx/native_widget_types.h"

namespace gfx {
class GLShareGroup;
}

namespace gpu {
namespace gles2 {
class GLES2Interface;
}
}

namespace content {
class GLHelper;
class GLContextLostListener;

class ImageTransportFactoryAndroidObserver {
 public:
  virtual ~ImageTransportFactoryAndroidObserver() {}
  virtual void OnLostResources() = 0;
};

class CONTENT_EXPORT ImageTransportFactoryAndroid {
 public:
  virtual ~ImageTransportFactoryAndroid();

  // Initializes the global transport factory for unit tests.
  static void InitializeForUnitTests(
      scoped_ptr<ImageTransportFactoryAndroid> test_factory);
  // Terminates the global transport factory for unit tests.
  static void TerminateForUnitTests();

  static ImageTransportFactoryAndroid* GetInstance();

  virtual GLHelper* GetGLHelper() = 0;
  static uint32 GetChannelID();

  static void AddObserver(ImageTransportFactoryAndroidObserver* observer);
  static void RemoveObserver(ImageTransportFactoryAndroidObserver* observer);

protected:
  ImageTransportFactoryAndroid();

  scoped_ptr<GLContextLostListener> context_lost_listener_;
};

}  // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_ANDROID_H_