1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #ifndef _MOZILLA_GFX_FILTERPROCESSING_H_
8 #define _MOZILLA_GFX_FILTERPROCESSING_H_
9
10 #include "2D.h"
11 #include "Filters.h"
12
13 namespace mozilla {
14 namespace gfx {
15
16 const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_B = 0;
17 const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_G = 1;
18 const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_R = 2;
19 const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_A = 3;
20
21 class FilterProcessing {
22 public:
23 // Fast approximate division by 255. It has the property that
24 // for all 0 <= v <= 255*255, FastDivideBy255(v) == v/255.
25 // But it only uses two adds and two shifts instead of an
26 // integer division (which is expensive on many processors).
27 template <class B, class A>
FastDivideBy255(A v)28 static B FastDivideBy255(A v) {
29 return ((v << 8) + v + 255) >> 16;
30 }
31
32 static already_AddRefed<DataSourceSurface> ExtractAlpha(
33 DataSourceSurface* aSource);
34 static already_AddRefed<DataSourceSurface> ConvertToB8G8R8A8(
35 SourceSurface* aSurface);
36 static already_AddRefed<DataSourceSurface> ApplyBlending(
37 DataSourceSurface* aInput1, DataSourceSurface* aInput2,
38 BlendMode aBlendMode);
39 static void ApplyMorphologyHorizontal(uint8_t* aSourceData,
40 int32_t aSourceStride,
41 uint8_t* aDestData, int32_t aDestStride,
42 const IntRect& aDestRect,
43 int32_t aRadius,
44 MorphologyOperator aOperator);
45 static void ApplyMorphologyVertical(uint8_t* aSourceData,
46 int32_t aSourceStride, uint8_t* aDestData,
47 int32_t aDestStride,
48 const IntRect& aDestRect, int32_t aRadius,
49 MorphologyOperator aOperator);
50 static already_AddRefed<DataSourceSurface> ApplyColorMatrix(
51 DataSourceSurface* aInput, const Matrix5x4& aMatrix);
52 static void ApplyComposition(DataSourceSurface* aSource,
53 DataSourceSurface* aDest,
54 CompositeOperator aOperator);
55 static void SeparateColorChannels(DataSourceSurface* aSource,
56 RefPtr<DataSourceSurface>& aChannel0,
57 RefPtr<DataSourceSurface>& aChannel1,
58 RefPtr<DataSourceSurface>& aChannel2,
59 RefPtr<DataSourceSurface>& aChannel3);
60 static already_AddRefed<DataSourceSurface> CombineColorChannels(
61 DataSourceSurface* aChannel0, DataSourceSurface* aChannel1,
62 DataSourceSurface* aChannel2, DataSourceSurface* aChannel3);
63 static void DoPremultiplicationCalculation(const IntSize& aSize,
64 uint8_t* aTargetData,
65 int32_t aTargetStride,
66 uint8_t* aSourceData,
67 int32_t aSourceStride);
68 static void DoUnpremultiplicationCalculation(const IntSize& aSize,
69 uint8_t* aTargetData,
70 int32_t aTargetStride,
71 uint8_t* aSourceData,
72 int32_t aSourceStride);
73 static void DoOpacityCalculation(const IntSize& aSize, uint8_t* aTargetData,
74 int32_t aTargetStride, uint8_t* aSourceData,
75 int32_t aSourceStride, Float aValue);
76 static void DoOpacityCalculationA8(const IntSize& aSize, uint8_t* aTargetData,
77 int32_t aTargetStride,
78 uint8_t* aSourceData,
79 int32_t aSourceStride, Float aValue);
80 static already_AddRefed<DataSourceSurface> RenderTurbulence(
81 const IntSize& aSize, const Point& aOffset, const Size& aBaseFrequency,
82 int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch,
83 const Rect& aTileRect);
84 static already_AddRefed<DataSourceSurface> ApplyArithmeticCombine(
85 DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1,
86 Float aK2, Float aK3, Float aK4);
87
88 protected:
89 static void ExtractAlpha_Scalar(const IntSize& size, uint8_t* sourceData,
90 int32_t sourceStride, uint8_t* alphaData,
91 int32_t alphaStride);
92 static already_AddRefed<DataSourceSurface> ConvertToB8G8R8A8_Scalar(
93 SourceSurface* aSurface);
94 static void ApplyMorphologyHorizontal_Scalar(
95 uint8_t* aSourceData, int32_t aSourceStride, uint8_t* aDestData,
96 int32_t aDestStride, const IntRect& aDestRect, int32_t aRadius,
97 MorphologyOperator aOperator);
98 static void ApplyMorphologyVertical_Scalar(
99 uint8_t* aSourceData, int32_t aSourceStride, uint8_t* aDestData,
100 int32_t aDestStride, const IntRect& aDestRect, int32_t aRadius,
101 MorphologyOperator aOperator);
102 static already_AddRefed<DataSourceSurface> ApplyColorMatrix_Scalar(
103 DataSourceSurface* aInput, const Matrix5x4& aMatrix);
104 static void ApplyComposition_Scalar(DataSourceSurface* aSource,
105 DataSourceSurface* aDest,
106 CompositeOperator aOperator);
107
108 static void SeparateColorChannels_Scalar(
109 const IntSize& size, uint8_t* sourceData, int32_t sourceStride,
110 uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data,
111 uint8_t* channel3Data, int32_t channelStride);
112 static void CombineColorChannels_Scalar(
113 const IntSize& size, int32_t resultStride, uint8_t* resultData,
114 int32_t channelStride, uint8_t* channel0Data, uint8_t* channel1Data,
115 uint8_t* channel2Data, uint8_t* channel3Data);
116 static void DoPremultiplicationCalculation_Scalar(const IntSize& aSize,
117 uint8_t* aTargetData,
118 int32_t aTargetStride,
119 uint8_t* aSourceData,
120 int32_t aSourceStride);
121 static void DoUnpremultiplicationCalculation_Scalar(const IntSize& aSize,
122 uint8_t* aTargetData,
123 int32_t aTargetStride,
124 uint8_t* aSourceData,
125 int32_t aSourceStride);
126 static void DoOpacityCalculation_Scalar(const IntSize& aSize,
127 uint8_t* aTargetData,
128 int32_t aTargetStride,
129 uint8_t* aSourceData,
130 int32_t aSourceStride, Float aValue);
131 static void DoOpacityCalculationA8_Scalar(
132 const IntSize& aSize, uint8_t* aTargetData, int32_t aTargetStride,
133 uint8_t* aSourceData, int32_t aSourceStride, Float aValue);
134 static already_AddRefed<DataSourceSurface> RenderTurbulence_Scalar(
135 const IntSize& aSize, const Point& aOffset, const Size& aBaseFrequency,
136 int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch,
137 const Rect& aTileRect);
138 static already_AddRefed<DataSourceSurface> ApplyArithmeticCombine_Scalar(
139 DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1,
140 Float aK2, Float aK3, Float aK4);
141
142 #ifdef USE_SSE2
143 static void ExtractAlpha_SSE2(const IntSize& size, uint8_t* sourceData,
144 int32_t sourceStride, uint8_t* alphaData,
145 int32_t alphaStride);
146 static already_AddRefed<DataSourceSurface> ConvertToB8G8R8A8_SSE2(
147 SourceSurface* aSurface);
148 static already_AddRefed<DataSourceSurface> ApplyBlending_SSE2(
149 DataSourceSurface* aInput1, DataSourceSurface* aInput2,
150 BlendMode aBlendMode);
151 static void ApplyMorphologyHorizontal_SSE2(
152 uint8_t* aSourceData, int32_t aSourceStride, uint8_t* aDestData,
153 int32_t aDestStride, const IntRect& aDestRect, int32_t aRadius,
154 MorphologyOperator aOperator);
155 static void ApplyMorphologyVertical_SSE2(
156 uint8_t* aSourceData, int32_t aSourceStride, uint8_t* aDestData,
157 int32_t aDestStride, const IntRect& aDestRect, int32_t aRadius,
158 MorphologyOperator aOperator);
159 static already_AddRefed<DataSourceSurface> ApplyColorMatrix_SSE2(
160 DataSourceSurface* aInput, const Matrix5x4& aMatrix);
161 static void ApplyComposition_SSE2(DataSourceSurface* aSource,
162 DataSourceSurface* aDest,
163 CompositeOperator aOperator);
164 static void SeparateColorChannels_SSE2(
165 const IntSize& size, uint8_t* sourceData, int32_t sourceStride,
166 uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data,
167 uint8_t* channel3Data, int32_t channelStride);
168 static void CombineColorChannels_SSE2(
169 const IntSize& size, int32_t resultStride, uint8_t* resultData,
170 int32_t channelStride, uint8_t* channel0Data, uint8_t* channel1Data,
171 uint8_t* channel2Data, uint8_t* channel3Data);
172 static void DoPremultiplicationCalculation_SSE2(const IntSize& aSize,
173 uint8_t* aTargetData,
174 int32_t aTargetStride,
175 uint8_t* aSourceData,
176 int32_t aSourceStride);
177 static void DoUnpremultiplicationCalculation_SSE2(const IntSize& aSize,
178 uint8_t* aTargetData,
179 int32_t aTargetStride,
180 uint8_t* aSourceData,
181 int32_t aSourceStride);
182 static void DoOpacityCalculation_SSE2(const IntSize& aSize,
183 uint8_t* aTargetData,
184 int32_t aTargetStride,
185 uint8_t* aSourceData,
186 int32_t aSourceStride, Float aValue);
187 static already_AddRefed<DataSourceSurface> RenderTurbulence_SSE2(
188 const IntSize& aSize, const Point& aOffset, const Size& aBaseFrequency,
189 int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch,
190 const Rect& aTileRect);
191 static already_AddRefed<DataSourceSurface> ApplyArithmeticCombine_SSE2(
192 DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1,
193 Float aK2, Float aK3, Float aK4);
194 #endif
195 };
196
197 // Constant-time max and min functions for unsigned arguments
umax(unsigned a,unsigned b)198 static inline unsigned umax(unsigned a, unsigned b) {
199 return a - ((a - b) & -(a < b));
200 }
201
umin(unsigned a,unsigned b)202 static inline unsigned umin(unsigned a, unsigned b) {
203 return a - ((a - b) & -(a > b));
204 }
205
206 } // namespace gfx
207 } // namespace mozilla
208
209 #endif // _MOZILLA_GFX_FILTERPROCESSING_H_
210