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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/. */
5 :
6 : #ifndef _MOZILLA_GFX_FILTERPROCESSING_H_
7 : #define _MOZILLA_GFX_FILTERPROCESSING_H_
8 :
9 : #include "2D.h"
10 : #include "Filters.h"
11 :
12 : namespace mozilla {
13 : namespace gfx {
14 :
15 : const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_B = 0;
16 : const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_G = 1;
17 : const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_R = 2;
18 : const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_A = 3;
19 :
20 : class FilterProcessing
21 : {
22 : public:
23 :
24 : // Fast approximate division by 255. It has the property that
25 : // for all 0 <= v <= 255*255, FastDivideBy255(v) == v/255.
26 : // But it only uses two adds and two shifts instead of an
27 : // integer division (which is expensive on many processors).
28 : template<class B, class A>
29 0 : static B FastDivideBy255(A v)
30 : {
31 0 : return ((v << 8) + v + 255) >> 16;
32 : }
33 :
34 : static already_AddRefed<DataSourceSurface> ExtractAlpha(DataSourceSurface* aSource);
35 : static already_AddRefed<DataSourceSurface> ConvertToB8G8R8A8(SourceSurface* aSurface);
36 : static already_AddRefed<DataSourceSurface> ApplyBlending(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode);
37 : static void ApplyMorphologyHorizontal(uint8_t* aSourceData, int32_t aSourceStride,
38 : uint8_t* aDestData, int32_t aDestStride,
39 : const IntRect& aDestRect, int32_t aRadius,
40 : MorphologyOperator aOperator);
41 : static void ApplyMorphologyVertical(uint8_t* aSourceData, int32_t aSourceStride,
42 : uint8_t* aDestData, int32_t aDestStride,
43 : const IntRect& aDestRect, int32_t aRadius,
44 : MorphologyOperator aOperator);
45 : static already_AddRefed<DataSourceSurface> ApplyColorMatrix(DataSourceSurface* aInput, const Matrix5x4 &aMatrix);
46 : static void ApplyComposition(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator);
47 : static void SeparateColorChannels(DataSourceSurface* aSource,
48 : RefPtr<DataSourceSurface>& aChannel0,
49 : RefPtr<DataSourceSurface>& aChannel1,
50 : RefPtr<DataSourceSurface>& aChannel2,
51 : RefPtr<DataSourceSurface>& aChannel3);
52 : static already_AddRefed<DataSourceSurface>
53 : CombineColorChannels(DataSourceSurface* aChannel0, DataSourceSurface* aChannel1,
54 : DataSourceSurface* aChannel2, DataSourceSurface* aChannel3);
55 : static void DoPremultiplicationCalculation(const IntSize& aSize,
56 : uint8_t* aTargetData, int32_t aTargetStride,
57 : uint8_t* aSourceData, int32_t aSourceStride);
58 : static void DoUnpremultiplicationCalculation(const IntSize& aSize,
59 : uint8_t* aTargetData, int32_t aTargetStride,
60 : uint8_t* aSourceData, int32_t aSourceStride);
61 : static already_AddRefed<DataSourceSurface>
62 : RenderTurbulence(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency,
63 : int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect);
64 : static already_AddRefed<DataSourceSurface>
65 : ApplyArithmeticCombine(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4);
66 :
67 : protected:
68 : static void ExtractAlpha_Scalar(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride);
69 : static already_AddRefed<DataSourceSurface> ConvertToB8G8R8A8_Scalar(SourceSurface* aSurface);
70 : static void ApplyMorphologyHorizontal_Scalar(uint8_t* aSourceData, int32_t aSourceStride,
71 : uint8_t* aDestData, int32_t aDestStride,
72 : const IntRect& aDestRect, int32_t aRadius,
73 : MorphologyOperator aOperator);
74 : static void ApplyMorphologyVertical_Scalar(uint8_t* aSourceData, int32_t aSourceStride,
75 : uint8_t* aDestData, int32_t aDestStride,
76 : const IntRect& aDestRect, int32_t aRadius,
77 : MorphologyOperator aOperator);
78 : static already_AddRefed<DataSourceSurface> ApplyColorMatrix_Scalar(DataSourceSurface* aInput, const Matrix5x4 &aMatrix);
79 : static void ApplyComposition_Scalar(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator);
80 :
81 : 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);
82 : 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);
83 : static void DoPremultiplicationCalculation_Scalar(const IntSize& aSize,
84 : uint8_t* aTargetData, int32_t aTargetStride,
85 : uint8_t* aSourceData, int32_t aSourceStride);
86 : static void DoUnpremultiplicationCalculation_Scalar(const IntSize& aSize,
87 : uint8_t* aTargetData, int32_t aTargetStride,
88 : uint8_t* aSourceData, int32_t aSourceStride);
89 : static already_AddRefed<DataSourceSurface>
90 : RenderTurbulence_Scalar(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency,
91 : int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect);
92 : static already_AddRefed<DataSourceSurface>
93 : ApplyArithmeticCombine_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4);
94 :
95 : #ifdef USE_SSE2
96 : static void ExtractAlpha_SSE2(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride);
97 : static already_AddRefed<DataSourceSurface> ConvertToB8G8R8A8_SSE2(SourceSurface* aSurface);
98 : static already_AddRefed<DataSourceSurface> ApplyBlending_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode);
99 : static void ApplyMorphologyHorizontal_SSE2(uint8_t* aSourceData, int32_t aSourceStride,
100 : uint8_t* aDestData, int32_t aDestStride,
101 : const IntRect& aDestRect, int32_t aRadius,
102 : MorphologyOperator aOperator);
103 : static void ApplyMorphologyVertical_SSE2(uint8_t* aSourceData, int32_t aSourceStride,
104 : uint8_t* aDestData, int32_t aDestStride,
105 : const IntRect& aDestRect, int32_t aRadius,
106 : MorphologyOperator aOperator);
107 : static already_AddRefed<DataSourceSurface> ApplyColorMatrix_SSE2(DataSourceSurface* aInput, const Matrix5x4 &aMatrix);
108 : static void ApplyComposition_SSE2(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator);
109 : 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);
110 : 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);
111 : static void DoPremultiplicationCalculation_SSE2(const IntSize& aSize,
112 : uint8_t* aTargetData, int32_t aTargetStride,
113 : uint8_t* aSourceData, int32_t aSourceStride);
114 : static void DoUnpremultiplicationCalculation_SSE2(const IntSize& aSize,
115 : uint8_t* aTargetData, int32_t aTargetStride,
116 : uint8_t* aSourceData, int32_t aSourceStride);
117 : static already_AddRefed<DataSourceSurface>
118 : RenderTurbulence_SSE2(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency,
119 : int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect);
120 : static already_AddRefed<DataSourceSurface>
121 : ApplyArithmeticCombine_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4);
122 : #endif
123 : };
124 :
125 : // Constant-time max and min functions for unsigned arguments
126 : static inline unsigned
127 0 : umax(unsigned a, unsigned b)
128 : {
129 0 : return a - ((a - b) & -(a < b));
130 : }
131 :
132 : static inline unsigned
133 0 : umin(unsigned a, unsigned b)
134 : {
135 0 : return a - ((a - b) & -(a > b));
136 : }
137 :
138 : } // namespace gfx
139 : } // namespace mozilla
140 :
141 : #endif // _MOZILLA_GFX_FILTERPROCESSING_H_
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