gfx/2d/FilterProcessing.h@97036ab72558 (annotated)
gfx/2d/FilterProcessing.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_FILTERPROCESSING_H_ |
| michael@0 | 7 | #define _MOZILLA_GFX_FILTERPROCESSING_H_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "2D.h" |
| michael@0 | 10 | #include "Filters.h" |
| michael@0 | 11 | |
| michael@0 | 12 | namespace mozilla { |
| michael@0 | 13 | namespace gfx { |
| michael@0 | 14 | |
| michael@0 | 15 | const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_B = 0; |
| michael@0 | 16 | const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_G = 1; |
| michael@0 | 17 | const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_R = 2; |
| michael@0 | 18 | const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_A = 3; |
| michael@0 | 19 | |
| michael@0 | 20 | class FilterProcessing |
| michael@0 | 21 | { |
| michael@0 | 22 | public: |
| michael@0 | 23 | |
| michael@0 | 24 | // Fast approximate division by 255. It has the property that |
| michael@0 | 25 | // for all 0 <= v <= 255*255, FastDivideBy255(v) == v/255. |
| michael@0 | 26 | // But it only uses two adds and two shifts instead of an |
| michael@0 | 27 | // integer division (which is expensive on many processors). |
| michael@0 | 28 | template<class B, class A> |
| michael@0 | 29 | static B FastDivideBy255(A v) |
| michael@0 | 30 | { |
| michael@0 | 31 | return ((v << 8) + v + 255) >> 16; |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | static TemporaryRef<DataSourceSurface> ExtractAlpha(DataSourceSurface* aSource); |
| michael@0 | 35 | static TemporaryRef<DataSourceSurface> ConvertToB8G8R8A8(SourceSurface* aSurface); |
| michael@0 | 36 | static TemporaryRef<DataSourceSurface> ApplyBlending(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode); |
| michael@0 | 37 | static void ApplyMorphologyHorizontal(uint8_t* aSourceData, int32_t aSourceStride, |
| michael@0 | 38 | uint8_t* aDestData, int32_t aDestStride, |
| michael@0 | 39 | const IntRect& aDestRect, int32_t aRadius, |
| michael@0 | 40 | MorphologyOperator aOperator); |
| michael@0 | 41 | static void ApplyMorphologyVertical(uint8_t* aSourceData, int32_t aSourceStride, |
| michael@0 | 42 | uint8_t* aDestData, int32_t aDestStride, |
| michael@0 | 43 | const IntRect& aDestRect, int32_t aRadius, |
| michael@0 | 44 | MorphologyOperator aOperator); |
| michael@0 | 45 | static TemporaryRef<DataSourceSurface> ApplyColorMatrix(DataSourceSurface* aInput, const Matrix5x4 &aMatrix); |
| michael@0 | 46 | static void ApplyComposition(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator); |
| michael@0 | 47 | static void SeparateColorChannels(DataSourceSurface* aSource, |
| michael@0 | 48 | RefPtr<DataSourceSurface>& aChannel0, |
| michael@0 | 49 | RefPtr<DataSourceSurface>& aChannel1, |
| michael@0 | 50 | RefPtr<DataSourceSurface>& aChannel2, |
| michael@0 | 51 | RefPtr<DataSourceSurface>& aChannel3); |
| michael@0 | 52 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 53 | CombineColorChannels(DataSourceSurface* aChannel0, DataSourceSurface* aChannel1, |
| michael@0 | 54 | DataSourceSurface* aChannel2, DataSourceSurface* aChannel3); |
| michael@0 | 55 | static void DoPremultiplicationCalculation(const IntSize& aSize, |
| michael@0 | 56 | uint8_t* aTargetData, int32_t aTargetStride, |
| michael@0 | 57 | uint8_t* aSourceData, int32_t aSourceStride); |
| michael@0 | 58 | static void DoUnpremultiplicationCalculation(const IntSize& aSize, |
| michael@0 | 59 | uint8_t* aTargetData, int32_t aTargetStride, |
| michael@0 | 60 | uint8_t* aSourceData, int32_t aSourceStride); |
| michael@0 | 61 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 62 | RenderTurbulence(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency, |
| michael@0 | 63 | int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect); |
| michael@0 | 64 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 65 | ApplyArithmeticCombine(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4); |
| michael@0 | 66 | |
| michael@0 | 67 | protected: |
| michael@0 | 68 | static void ExtractAlpha_Scalar(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride); |
| michael@0 | 69 | static TemporaryRef<DataSourceSurface> ConvertToB8G8R8A8_Scalar(SourceSurface* aSurface); |
| michael@0 | 70 | static TemporaryRef<DataSourceSurface> ApplyBlending_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode); |
| michael@0 | 71 | static void ApplyMorphologyHorizontal_Scalar(uint8_t* aSourceData, int32_t aSourceStride, |
| michael@0 | 72 | uint8_t* aDestData, int32_t aDestStride, |
| michael@0 | 73 | const IntRect& aDestRect, int32_t aRadius, |
| michael@0 | 74 | MorphologyOperator aOperator); |
| michael@0 | 75 | static void ApplyMorphologyVertical_Scalar(uint8_t* aSourceData, int32_t aSourceStride, |
| michael@0 | 76 | uint8_t* aDestData, int32_t aDestStride, |
| michael@0 | 77 | const IntRect& aDestRect, int32_t aRadius, |
| michael@0 | 78 | MorphologyOperator aOperator); |
| michael@0 | 79 | static TemporaryRef<DataSourceSurface> ApplyColorMatrix_Scalar(DataSourceSurface* aInput, const Matrix5x4 &aMatrix); |
| michael@0 | 80 | static void ApplyComposition_Scalar(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator); |
| michael@0 | 81 | |
| michael@0 | 82 | static void SeparateColorChannels_Scalar(const IntSize &size, uint8_t* sourceData, int32_t sourceStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data, int32_t channelStride); |
| michael@0 | 83 | static void CombineColorChannels_Scalar(const IntSize &size, int32_t resultStride, uint8_t* resultData, int32_t channelStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data); |
| michael@0 | 84 | static void DoPremultiplicationCalculation_Scalar(const IntSize& aSize, |
| michael@0 | 85 | uint8_t* aTargetData, int32_t aTargetStride, |
| michael@0 | 86 | uint8_t* aSourceData, int32_t aSourceStride); |
| michael@0 | 87 | static void DoUnpremultiplicationCalculation_Scalar(const IntSize& aSize, |
| michael@0 | 88 | uint8_t* aTargetData, int32_t aTargetStride, |
| michael@0 | 89 | uint8_t* aSourceData, int32_t aSourceStride); |
| michael@0 | 90 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 91 | RenderTurbulence_Scalar(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency, |
| michael@0 | 92 | int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect); |
| michael@0 | 93 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 94 | ApplyArithmeticCombine_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4); |
| michael@0 | 95 | |
| michael@0 | 96 | #ifdef USE_SSE2 |
| michael@0 | 97 | static void ExtractAlpha_SSE2(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride); |
| michael@0 | 98 | static TemporaryRef<DataSourceSurface> ConvertToB8G8R8A8_SSE2(SourceSurface* aSurface); |
| michael@0 | 99 | static TemporaryRef<DataSourceSurface> ApplyBlending_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode); |
| michael@0 | 100 | static void ApplyMorphologyHorizontal_SSE2(uint8_t* aSourceData, int32_t aSourceStride, |
| michael@0 | 101 | uint8_t* aDestData, int32_t aDestStride, |
| michael@0 | 102 | const IntRect& aDestRect, int32_t aRadius, |
| michael@0 | 103 | MorphologyOperator aOperator); |
| michael@0 | 104 | static void ApplyMorphologyVertical_SSE2(uint8_t* aSourceData, int32_t aSourceStride, |
| michael@0 | 105 | uint8_t* aDestData, int32_t aDestStride, |
| michael@0 | 106 | const IntRect& aDestRect, int32_t aRadius, |
| michael@0 | 107 | MorphologyOperator aOperator); |
| michael@0 | 108 | static TemporaryRef<DataSourceSurface> ApplyColorMatrix_SSE2(DataSourceSurface* aInput, const Matrix5x4 &aMatrix); |
| michael@0 | 109 | static void ApplyComposition_SSE2(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator); |
| michael@0 | 110 | static void SeparateColorChannels_SSE2(const IntSize &size, uint8_t* sourceData, int32_t sourceStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data, int32_t channelStride); |
| michael@0 | 111 | static void CombineColorChannels_SSE2(const IntSize &size, int32_t resultStride, uint8_t* resultData, int32_t channelStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data); |
| michael@0 | 112 | static void DoPremultiplicationCalculation_SSE2(const IntSize& aSize, |
| michael@0 | 113 | uint8_t* aTargetData, int32_t aTargetStride, |
| michael@0 | 114 | uint8_t* aSourceData, int32_t aSourceStride); |
| michael@0 | 115 | static void DoUnpremultiplicationCalculation_SSE2(const IntSize& aSize, |
| michael@0 | 116 | uint8_t* aTargetData, int32_t aTargetStride, |
| michael@0 | 117 | uint8_t* aSourceData, int32_t aSourceStride); |
| michael@0 | 118 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 119 | RenderTurbulence_SSE2(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency, |
| michael@0 | 120 | int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect); |
| michael@0 | 121 | static TemporaryRef<DataSourceSurface> |
| michael@0 | 122 | ApplyArithmeticCombine_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4); |
| michael@0 | 123 | #endif |
| michael@0 | 124 | }; |
| michael@0 | 125 | |
| michael@0 | 126 | // Constant-time max and min functions for unsigned arguments |
| michael@0 | 127 | static inline unsigned |
| michael@0 | 128 | umax(unsigned a, unsigned b) |
| michael@0 | 129 | { |
| michael@0 | 130 | return a - ((a - b) & -(a < b)); |
| michael@0 | 131 | } |
| michael@0 | 132 | |
| michael@0 | 133 | static inline unsigned |
| michael@0 | 134 | umin(unsigned a, unsigned b) |
| michael@0 | 135 | { |
| michael@0 | 136 | return a - ((a - b) & -(a > b)); |
| michael@0 | 137 | } |
| michael@0 | 138 | |
| michael@0 | 139 | } // namespace gfx |
| michael@0 | 140 | } // namespace mozilla |
| michael@0 | 141 | |
| michael@0 | 142 | #endif // _MOZILLA_GFX_FILTERPROCESSING_H_ |
