The Tor Browser: gfx/2d/RadialGradientEffectD2D1.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_RADIALGRADIENTEFFECTD2D1_H_

     7 #define MOZILLA_GFX_RADIALGRADIENTEFFECTD2D1_H_

     9 #include <d2d1_1.h>

    10 #include <d2d1effectauthor.h>

    11 #include <d2d1effecthelpers.h>

    13 #include "2D.h"

    14 #include "mozilla/Attributes.h"

    16 // {97143DC6-CBC4-4DD4-A8BA-13342B0BA46D}

    17 DEFINE_GUID(CLSID_RadialGradientEffect,

    18 0x97143dc6, 0xcbc4, 0x4dd4, 0xa8, 0xba, 0x13, 0x34, 0x2b, 0xb, 0xa4, 0x6d);

    20 // Macro to keep our class nice and clean.

    21 #define SIMPLE_PROP(type, name) \

    22 public: \

    23   HRESULT Set##name(type a##name) \

    24   { m##name = a##name; return S_OK; } \

    25   type Get##name() const { return m##name; } \

    26 private: \

    27   type m##name;

    29 namespace mozilla {

    30 namespace gfx {

    32 enum {

    33   RADIAL_PROP_STOP_COLLECTION = 0,

    34   RADIAL_PROP_CENTER_1,

    35   RADIAL_PROP_CENTER_2,

    36   RADIAL_PROP_RADIUS_1,

    37   RADIAL_PROP_RADIUS_2,

    38   RADIAL_PROP_TRANSFORM

    39 };

    41 class RadialGradientEffectD2D1 MOZ_FINAL : public ID2D1EffectImpl

    42                                          , public ID2D1DrawTransform

    43 {

    44 public:

    45   // ID2D1EffectImpl

    46   IFACEMETHODIMP Initialize(ID2D1EffectContext* pContextInternal, ID2D1TransformGraph* pTransformGraph);

    47   IFACEMETHODIMP PrepareForRender(D2D1_CHANGE_TYPE changeType);

    48   IFACEMETHODIMP SetGraph(ID2D1TransformGraph* pGraph);

    50   // IUnknown

    51   IFACEMETHODIMP_(ULONG) AddRef();

    52   IFACEMETHODIMP_(ULONG) Release();

    53   IFACEMETHODIMP QueryInterface(REFIID riid, void** ppOutput);

    55   // ID2D1Transform

    56   IFACEMETHODIMP MapInputRectsToOutputRect(const D2D1_RECT_L* pInputRects,

    57                                            const D2D1_RECT_L* pInputOpaqueSubRects,

    58                                            UINT32 inputRectCount,

    59                                            D2D1_RECT_L* pOutputRect,

    60                                            D2D1_RECT_L* pOutputOpaqueSubRect);

    61   IFACEMETHODIMP MapOutputRectToInputRects(const D2D1_RECT_L* pOutputRect,

    62                                            D2D1_RECT_L* pInputRects,

    63                                            UINT32 inputRectCount) const;

    64   IFACEMETHODIMP MapInvalidRect(UINT32 inputIndex,

    65                                 D2D1_RECT_L invalidInputRect,

    66                                 D2D1_RECT_L* pInvalidOutputRect) const;

    68   // ID2D1TransformNode

    69   IFACEMETHODIMP_(UINT32) GetInputCount() const { return 1; }

    71   // ID2D1DrawTransform

    72   IFACEMETHODIMP SetDrawInfo(ID2D1DrawInfo *pDrawInfo);

    74   static HRESULT Register(ID2D1Factory1* aFactory);

    75   static HRESULT __stdcall CreateEffect(IUnknown** aEffectImpl);

    77   HRESULT SetStopCollection(IUnknown *aStopCollection);

    78   IUnknown *GetStopCollection() const { return mStopCollection; }

    80 private:

    81   TemporaryRef<ID2D1ResourceTexture> CreateGradientTexture();

    83   RadialGradientEffectD2D1();

    85   uint32_t mRefCount;

    86   RefPtr<ID2D1GradientStopCollection> mStopCollection;

    87   RefPtr<ID2D1EffectContext> mEffectContext;

    88   RefPtr<ID2D1DrawInfo> mDrawInfo;

    89   SIMPLE_PROP(D2D1_VECTOR_2F, Center1);

    90   SIMPLE_PROP(D2D1_VECTOR_2F, Center2);

    91   SIMPLE_PROP(FLOAT, Radius1);

    92   SIMPLE_PROP(FLOAT, Radius2);

    93   SIMPLE_PROP(D2D_MATRIX_3X2_F, Transform);

    94 };

    96 }

    97 }

    98 #undef SIMPLE_PROP

   100 #endif

The Tor Browser / file revision

gfx/2d/RadialGradientEffectD2D1.h@97036ab72558

gfx/2d/RadialGradientEffectD2D1.h