/* -*- 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_RENDERTEXTUREHOST_H

#define MOZILLA_GFX_RENDERTEXTUREHOST_H

#include "GLConsts.h"

#include "nsISupportsImpl.h"

#include "mozilla/gfx/2D.h"

#include "mozilla/layers/LayersSurfaces.h"

#include "mozilla/RefPtr.h"

#include "mozilla/webrender/webrender_ffi.h" // for wr::ImageRendering

namespace mozilla {

namespace gl {

class GLContext;

}

namespace wr {

class RenderBufferTextureHost;

class RenderTextureHostOGL;

class RenderTextureHostWrapper;

void

ActivateBindAndTexParameteri(gl::GLContext* aGL,

                             GLenum aActiveTexture,

                             GLenum aBindTarget,

                             GLuint aBindTexture,

                             wr::ImageRendering aRendering);

class RenderTextureHost

{

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RenderTextureHost)

public:

  RenderTextureHost();

  virtual wr::WrExternalImage Lock(uint8_t aChannelIndex,

                                   gl::GLContext* aGL,

                                   wr::ImageRendering aRendering) = 0;

  virtual void Unlock() = 0;

  virtual void ClearCachedResources() {}

  virtual RenderTextureHostWrapper* AsRenderTextureHostWrapper() { return nullptr; }

protected:

  virtual ~RenderTextureHost();

  bool IsFilterUpdateNecessary(wr::ImageRendering aRendering);

  wr::ImageRendering mCachedRendering;

};

} // namespace wr

} // namespace mozilla

#endif // MOZILLA_GFX_RENDERTEXTUREHOST_H