gfx/webrender_bindings/RenderSharedSurfaceTextureHost.h
author Eitan Isaacson <eitan@monotonous.org>
Thu, 20 Dec 2018 16:03:00 -0500
changeset 501491 c58ea2229c337e9981ab9d3650b04fd3d249b141
parent 493487 65002b9b5bcabbee1a59af858e257cf871cbd1fa
child 508163 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1513912 - Null check return from TextToSpeech.getFeatures(). r=agi, a=jcristau

/* -*- 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_RENDERSHAREDSURFACETEXTUREHOST_H
#define MOZILLA_GFX_RENDERSHAREDSURFACETEXTUREHOST_H

#include "RenderTextureHost.h"

namespace mozilla {
namespace gfx {
class SourceSurfaceSharedDataWrapper;
}

namespace wr {

/**
 * This class allows for surfaces managed by SharedSurfacesParent to be inserted
 * into the render texture cache by wrapping an existing surface wrapper. These
 * surfaces are backed by BGRA/X shared memory buffers.
 */
class RenderSharedSurfaceTextureHost final : public RenderTextureHost
{
public:
  explicit RenderSharedSurfaceTextureHost(gfx::SourceSurfaceSharedDataWrapper* aSurface);

  wr::WrExternalImage Lock(uint8_t aChannelIndex,
                           gl::GLContext* aGL,
                           wr::ImageRendering aRendering) override;
  void Unlock() override;

private:
  ~RenderSharedSurfaceTextureHost() override;

  RefPtr<gfx::SourceSurfaceSharedDataWrapper> mSurface;
  gfx::DataSourceSurface::MappedSurface mMap;
  bool mLocked;
};

} // namespace wr
} // namespace mozilla

#endif // MOZILLA_GFX_RENDERSHAREDSURFACETEXTUREHOST_H