gfx/2d/FilterProcessing.h

   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>
  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
 198 static inline unsigned umax(unsigned a, unsigned b) {
 199   return a - ((a - b) & -(a < b));
 200 }
 201
 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_