gfx/2d/DataSourceSurfaceWrapper.h
author Jean-Yves Avenard <jyavenard@mozilla.com>
Thu, 11 Apr 2019 12:36:51 +0000
changeset 469134 884f5dc55873c9345ee945cd6d5427e8ab398071
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 472056 e1993a1f09ac53cd1a04fdf6a87f8cad8e44f73e
permissions -rw-r--r--
Bug 1540581 - P6. Tidy some C++ declarations in gfx/. r=gerald,jrmuizel * Remove redundant virtual keywords * Mark all destructors of inheriting classes as virtual for clarity * Mark all classes without virtual destructor as final (exposed errors) * Make destructor virtual where it needed to be (some were missing) * Replace empty ({}) code declaration in header with = default * Remove virtual unused methods I probably missed some, it quickly became a rabbit hole. Differential Revision: https://phabricator.services.mozilla.com/D26060

/* -*- 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_DATASOURCESURFACEWRAPPER_H_
#define MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_

#include "2D.h"

namespace mozilla {
namespace gfx {

// Wraps a DataSourceSurface and forwards all methods except for GetType(),
// from which it always returns SurfaceType::DATA.
class DataSourceSurfaceWrapper final : public DataSourceSurface {
 public:
  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceWrapper, override)
  explicit DataSourceSurfaceWrapper(DataSourceSurface *aSurface)
      : mSurface(aSurface) {}

  bool Equals(SourceSurface *aOther, bool aSymmetric = true) override {
    return DataSourceSurface::Equals(aOther, aSymmetric) ||
           mSurface->Equals(aOther, aSymmetric);
  }

  SurfaceType GetType() const override { return SurfaceType::DATA; }

  uint8_t *GetData() override { return mSurface->GetData(); }
  int32_t Stride() override { return mSurface->Stride(); }
  IntSize GetSize() const override { return mSurface->GetSize(); }
  SurfaceFormat GetFormat() const override { return mSurface->GetFormat(); }
  bool IsValid() const override { return mSurface->IsValid(); }

  bool Map(MapType aType, MappedSurface *aMappedSurface) override {
    return mSurface->Map(aType, aMappedSurface);
  }

  void Unmap() override { mSurface->Unmap(); }

 private:
  RefPtr<DataSourceSurface> mSurface;
};

}  // namespace gfx
}  // namespace mozilla

#endif /* MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ */