The Tor Browser: gfx/2d/SourceSurfaceRawData.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_SOURCESURFACERAWDATA_H_

     7 #define MOZILLA_GFX_SOURCESURFACERAWDATA_H_

     9 #include "2D.h"

    10 #include "Tools.h"

    12 namespace mozilla {

    13 namespace gfx {

    15 class SourceSurfaceRawData : public DataSourceSurface

    16 {

    17 public:

    18   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceRawData)

    19   SourceSurfaceRawData() {}

    20   ~SourceSurfaceRawData() { if(mOwnData) delete [] mRawData; }

    22   virtual uint8_t *GetData() { return mRawData; }

    23   virtual int32_t Stride() { return mStride; }

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

    26   virtual IntSize GetSize() const { return mSize; }

    27   virtual SurfaceFormat GetFormat() const { return mFormat; }

    29   bool InitWrappingData(unsigned char *aData,

    30                         const IntSize &aSize,

    31                         int32_t aStride,

    32                         SurfaceFormat aFormat,

    33                         bool aOwnData);

    35 private:

    36   uint8_t *mRawData;

    37   int32_t mStride;

    38   SurfaceFormat mFormat;

    39   IntSize mSize;

    40   bool mOwnData;

    41 };

    43 class SourceSurfaceAlignedRawData : public DataSourceSurface

    44 {

    45 public:

    46   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceAlignedRawData)

    47   SourceSurfaceAlignedRawData() {}

    49   virtual uint8_t *GetData() { return mArray; }

    50   virtual int32_t Stride() { return mStride; }

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

    53   virtual IntSize GetSize() const { return mSize; }

    54   virtual SurfaceFormat GetFormat() const { return mFormat; }

    56   bool Init(const IntSize &aSize,

    57             SurfaceFormat aFormat);

    58   bool InitWithStride(const IntSize &aSize,

    59                       SurfaceFormat aFormat,

    60                       int32_t aStride);

    62 private:

    63   AlignedArray<uint8_t> mArray;

    64   int32_t mStride;

    65   SurfaceFormat mFormat;

    66   IntSize mSize;

    67 };

    69 }

    70 }

    72 #endif /* MOZILLA_GFX_SOURCESURFACERAWDATA_H_ */

The Tor Browser / file revision

gfx/2d/SourceSurfaceRawData.h@97036ab72558

gfx/2d/SourceSurfaceRawData.h