The Tor Browser: gfx/2d/DataSourceSurfaceWrapper.h@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

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

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

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

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

     6 #ifndef MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_

     7 #define MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_

     9 #include "2D.h"

    11 namespace mozilla {

    12 namespace gfx {

    14 // Wraps a DataSourceSurface and forwards all methods except for GetType(),

    15 // from which it always returns SurfaceType::DATA.

    16 class DataSourceSurfaceWrapper : public DataSourceSurface

    17 {

    18 public:

    19   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceWrapper)

    20   DataSourceSurfaceWrapper(DataSourceSurface *aSurface)

    21    : mSurface(aSurface)

    22   {}

    24   virtual SurfaceType GetType() const MOZ_OVERRIDE { return SurfaceType::DATA; }

    26   virtual uint8_t *GetData() MOZ_OVERRIDE { return mSurface->GetData(); }

    27   virtual int32_t Stride() MOZ_OVERRIDE { return mSurface->Stride(); }

    28   virtual IntSize GetSize() const MOZ_OVERRIDE { return mSurface->GetSize(); }

    29   virtual SurfaceFormat GetFormat() const MOZ_OVERRIDE { return mSurface->GetFormat(); }

    30   virtual bool IsValid() const MOZ_OVERRIDE { return mSurface->IsValid(); }

    32 private:

    33   RefPtr<DataSourceSurface> mSurface;

    34 };

    36 }

    37 }

    39 #endif /* MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ */

The Tor Browser / file revision

gfx/2d/DataSourceSurfaceWrapper.h@97036ab72558

gfx/2d/DataSourceSurfaceWrapper.h