The Tor Browser: gfx/2d/SourceSurfaceSkia.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_SOURCESURFACESKIA_H_

     7 #define MOZILLA_GFX_SOURCESURFACESKIA_H_

     9 #include "2D.h"

    10 #include <vector>

    11 #include "skia/SkCanvas.h"

    12 #include "skia/SkBitmap.h"

    14 namespace mozilla {

    15 namespace gfx {

    17 class DrawTargetSkia;

    19 class SourceSurfaceSkia : public DataSourceSurface

    20 {

    21 public:

    22   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceSkia)

    23   SourceSurfaceSkia();

    24   ~SourceSurfaceSkia();

    26   virtual SurfaceType GetType() const { return SurfaceType::SKIA; }

    27   virtual IntSize GetSize() const;

    28   virtual SurfaceFormat GetFormat() const;

    30   SkBitmap& GetBitmap() { return mBitmap; }

    32   bool InitFromData(unsigned char* aData,

    33                     const IntSize &aSize,

    34                     int32_t aStride,

    35                     SurfaceFormat aFormat);

    37   bool InitFromCanvas(SkCanvas* aCanvas,

    38                       SurfaceFormat aFormat,

    39                       DrawTargetSkia* aOwner);

    41   virtual unsigned char *GetData();

    43   virtual int32_t Stride() { return mStride; }

    45 private:

    46   friend class DrawTargetSkia;

    48   void DrawTargetWillChange();

    49   void MaybeUnlock();

    51   SkBitmap mBitmap;

    52   SurfaceFormat mFormat;

    53   IntSize mSize;

    54   int32_t mStride;

    55   RefPtr<DrawTargetSkia> mDrawTarget;

    56   bool mLocked;

    57 };

    59 }

    60 }

    62 #endif /* MOZILLA_GFX_SOURCESURFACESKIA_H_ */

The Tor Browser / file revision

gfx/2d/SourceSurfaceSkia.h@97036ab72558

gfx/2d/SourceSurfaceSkia.h