gfx/2d/SourceSurfaceD2D1.h@97036ab72558 (annotated)
gfx/2d/SourceSurfaceD2D1.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
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.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef MOZILLA_GFX_SOURCESURFACED2D1_H_ |
| michael@0 | 7 | #define MOZILLA_GFX_SOURCESURFACED2D1_H_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "2D.h" |
| michael@0 | 10 | #include "HelpersD2D.h" |
| michael@0 | 11 | #include <vector> |
| michael@0 | 12 | #include <d3d11.h> |
| michael@0 | 13 | #include <d2d1_1.h> |
| michael@0 | 14 | |
| michael@0 | 15 | namespace mozilla { |
| michael@0 | 16 | namespace gfx { |
| michael@0 | 17 | |
| michael@0 | 18 | class DrawTargetD2D1; |
| michael@0 | 19 | |
| michael@0 | 20 | class SourceSurfaceD2D1 : public SourceSurface |
| michael@0 | 21 | { |
| michael@0 | 22 | public: |
| michael@0 | 23 | MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SourceSurfaceD2D1) |
| michael@0 | 24 | SourceSurfaceD2D1(ID2D1Image* aImage, ID2D1DeviceContext *aDC, |
| michael@0 | 25 | SurfaceFormat aFormat, const IntSize &aSize, |
| michael@0 | 26 | DrawTargetD2D1 *aDT = nullptr); |
| michael@0 | 27 | ~SourceSurfaceD2D1(); |
| michael@0 | 28 | |
| michael@0 | 29 | virtual SurfaceType GetType() const { return SurfaceType::D2D1_1_IMAGE; } |
| michael@0 | 30 | virtual IntSize GetSize() const { return mSize; } |
| michael@0 | 31 | virtual SurfaceFormat GetFormat() const { return mFormat; } |
| michael@0 | 32 | virtual TemporaryRef<DataSourceSurface> GetDataSurface(); |
| michael@0 | 33 | |
| michael@0 | 34 | ID2D1Image *GetImage() { return mImage; } |
| michael@0 | 35 | |
| michael@0 | 36 | void EnsureIndependent() { if (!mDrawTarget) return; DrawTargetWillChange(); } |
| michael@0 | 37 | |
| michael@0 | 38 | private: |
| michael@0 | 39 | friend class DrawTargetD2D1; |
| michael@0 | 40 | |
| michael@0 | 41 | void EnsureRealizedBitmap(); |
| michael@0 | 42 | |
| michael@0 | 43 | // This function is called by the draw target this texture belongs to when |
| michael@0 | 44 | // it is about to be changed. The texture will be required to make a copy |
| michael@0 | 45 | // of itself when this happens. |
| michael@0 | 46 | void DrawTargetWillChange(); |
| michael@0 | 47 | |
| michael@0 | 48 | // This will mark the surface as no longer depending on its drawtarget, |
| michael@0 | 49 | // this may happen on destruction or copying. |
| michael@0 | 50 | void MarkIndependent(); |
| michael@0 | 51 | |
| michael@0 | 52 | RefPtr<ID2D1Image> mImage; |
| michael@0 | 53 | // This may be null if we were created for a non-bitmap image and have not |
| michael@0 | 54 | // had a reason yet to realize ourselves. |
| michael@0 | 55 | RefPtr<ID2D1Bitmap1> mRealizedBitmap; |
| michael@0 | 56 | RefPtr<ID2D1DeviceContext> mDC; |
| michael@0 | 57 | |
| michael@0 | 58 | SurfaceFormat mFormat; |
| michael@0 | 59 | IntSize mSize; |
| michael@0 | 60 | RefPtr<DrawTargetD2D1> mDrawTarget; |
| michael@0 | 61 | }; |
| michael@0 | 62 | |
| michael@0 | 63 | class DataSourceSurfaceD2D1 : public DataSourceSurface |
| michael@0 | 64 | { |
| michael@0 | 65 | public: |
| michael@0 | 66 | MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceD2D1) |
| michael@0 | 67 | DataSourceSurfaceD2D1(ID2D1Bitmap1 *aMappableBitmap, SurfaceFormat aFormat); |
| michael@0 | 68 | ~DataSourceSurfaceD2D1(); |
| michael@0 | 69 | |
| michael@0 | 70 | virtual SurfaceType GetType() const { return SurfaceType::DATA; } |
| michael@0 | 71 | virtual IntSize GetSize() const; |
| michael@0 | 72 | virtual SurfaceFormat GetFormat() const { return mFormat; } |
| michael@0 | 73 | virtual uint8_t *GetData(); |
| michael@0 | 74 | virtual int32_t Stride(); |
| michael@0 | 75 | virtual bool Map(MapType, MappedSurface *aMappedSurface); |
| michael@0 | 76 | virtual void Unmap(); |
| michael@0 | 77 | |
| michael@0 | 78 | private: |
| michael@0 | 79 | friend class SourceSurfaceD2DTarget; |
| michael@0 | 80 | void EnsureMapped(); |
| michael@0 | 81 | |
| michael@0 | 82 | mutable RefPtr<ID2D1Bitmap1> mBitmap; |
| michael@0 | 83 | SurfaceFormat mFormat; |
| michael@0 | 84 | D2D1_MAPPED_RECT mMap; |
| michael@0 | 85 | bool mMapped; |
| michael@0 | 86 | }; |
| michael@0 | 87 | |
| michael@0 | 88 | } |
| michael@0 | 89 | } |
| michael@0 | 90 | |
| michael@0 | 91 | #endif /* MOZILLA_GFX_SOURCESURFACED2D2TARGET_H_ */ |
