ExternalBlitter.h - mozsearch

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef VRBROWSER_EXTERNALBLITTER_H

#define VRBROWSER_EXTERNALBLITTER_H

#include "vrb/MacroUtils.h"

#include "vrb/Forward.h"

#include "vrb/ResourceGL.h"

#include "Device.h"

#include "ExternalVR.h"

#include <memory>

namespace crow {

class ExternalBlitter;

typedef std::shared_ptr<ExternalBlitter> ExternalBlitterPtr;

class ExternalBlitter : protected vrb::ResourceGL {

public:

  static ExternalBlitterPtr Create(vrb::CreationContextPtr& aContext);

  void StartFrame(const int32_t aSurfaceHandle, const device::EyeRect& aLeftEye, const device::EyeRect& aRightEye);

  void Draw(const device::Eye aEye);

  void EndFrame();

  void StopPresenting();

  void CancelFrame(const int32_t aSurfaceHandle);

protected:

  struct State;

  ExternalBlitter(State& aState, vrb::CreationContextPtr& aContext);

  ~ExternalBlitter() = default;

  void InitializeGL() override;

  void ShutdownGL() override;

private:

  State& m;

  ExternalBlitter() = delete;

  VRB_NO_DEFAULTS(ExternalBlitter)

};

} // namespace crow

#endif //VRBROWSER_EXTERNALBLITTER_H