/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H

#define MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H

#include "RenderTextureHost.h"

namespace mozilla {

namespace wr {

class RenderBufferTextureHost final : public RenderTextureHost

{

public:

  RenderBufferTextureHost(uint8_t* aBuffer,

                          const layers::BufferDescriptor& aDescriptor);

  wr::WrExternalImage Lock(uint8_t aChannelIndex,

                           gl::GLContext* aGL,

                           wr::ImageRendering aRendering) override;

  void Unlock() override;

  class RenderBufferData

  {

  public:

    RenderBufferData(uint8_t* aData, size_t aBufferSize)

      : mData(aData)

      , mBufferSize(aBufferSize)

    {

    }

    const uint8_t* mData;

    size_t mBufferSize;

  };

  RenderBufferData GetBufferDataForRender(uint8_t aChannelIndex);

private:

  virtual ~RenderBufferTextureHost();

  uint8_t* GetBuffer() const

  {

    return mBuffer;

  }

  uint8_t* mBuffer;

  layers::BufferDescriptor mDescriptor;

  gfx::IntSize mSize;

  gfx::SurfaceFormat mFormat;

  RefPtr<gfx::DataSourceSurface> mSurface;

  gfx::DataSourceSurface::MappedSurface mMap;

  RefPtr<gfx::DataSourceSurface> mYSurface;

  RefPtr<gfx::DataSourceSurface> mCbSurface;

  RefPtr<gfx::DataSourceSurface> mCrSurface;

  gfx::DataSourceSurface::MappedSurface mYMap;

  gfx::DataSourceSurface::MappedSurface mCbMap;

  gfx::DataSourceSurface::MappedSurface mCrMap;

  bool mLocked;

};

} // namespace wr

} // namespace mozilla

#endif // MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H