diff -r 000000000000 -r 6474c204b198 gfx/2d/FilterProcessing.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gfx/2d/FilterProcessing.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,142 @@ +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef _MOZILLA_GFX_FILTERPROCESSING_H_ +#define _MOZILLA_GFX_FILTERPROCESSING_H_ + +#include "2D.h" +#include "Filters.h" + +namespace mozilla { +namespace gfx { + +const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_B = 0; +const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_G = 1; +const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_R = 2; +const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_A = 3; + +class FilterProcessing +{ +public: + + // Fast approximate division by 255. It has the property that + // for all 0 <= v <= 255*255, FastDivideBy255(v) == v/255. + // But it only uses two adds and two shifts instead of an + // integer division (which is expensive on many processors). + template + static B FastDivideBy255(A v) + { + return ((v << 8) + v + 255) >> 16; + } + + static TemporaryRef ExtractAlpha(DataSourceSurface* aSource); + static TemporaryRef ConvertToB8G8R8A8(SourceSurface* aSurface); + static TemporaryRef ApplyBlending(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode); + static void ApplyMorphologyHorizontal(uint8_t* aSourceData, int32_t aSourceStride, + uint8_t* aDestData, int32_t aDestStride, + const IntRect& aDestRect, int32_t aRadius, + MorphologyOperator aOperator); + static void ApplyMorphologyVertical(uint8_t* aSourceData, int32_t aSourceStride, + uint8_t* aDestData, int32_t aDestStride, + const IntRect& aDestRect, int32_t aRadius, + MorphologyOperator aOperator); + static TemporaryRef ApplyColorMatrix(DataSourceSurface* aInput, const Matrix5x4 &aMatrix); + static void ApplyComposition(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator); + static void SeparateColorChannels(DataSourceSurface* aSource, + RefPtr& aChannel0, + RefPtr& aChannel1, + RefPtr& aChannel2, + RefPtr& aChannel3); + static TemporaryRef + CombineColorChannels(DataSourceSurface* aChannel0, DataSourceSurface* aChannel1, + DataSourceSurface* aChannel2, DataSourceSurface* aChannel3); + static void DoPremultiplicationCalculation(const IntSize& aSize, + uint8_t* aTargetData, int32_t aTargetStride, + uint8_t* aSourceData, int32_t aSourceStride); + static void DoUnpremultiplicationCalculation(const IntSize& aSize, + uint8_t* aTargetData, int32_t aTargetStride, + uint8_t* aSourceData, int32_t aSourceStride); + static TemporaryRef + RenderTurbulence(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency, + int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect); + static TemporaryRef + ApplyArithmeticCombine(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4); + +protected: + static void ExtractAlpha_Scalar(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride); + static TemporaryRef ConvertToB8G8R8A8_Scalar(SourceSurface* aSurface); + static TemporaryRef ApplyBlending_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode); + static void ApplyMorphologyHorizontal_Scalar(uint8_t* aSourceData, int32_t aSourceStride, + uint8_t* aDestData, int32_t aDestStride, + const IntRect& aDestRect, int32_t aRadius, + MorphologyOperator aOperator); + static void ApplyMorphologyVertical_Scalar(uint8_t* aSourceData, int32_t aSourceStride, + uint8_t* aDestData, int32_t aDestStride, + const IntRect& aDestRect, int32_t aRadius, + MorphologyOperator aOperator); + static TemporaryRef ApplyColorMatrix_Scalar(DataSourceSurface* aInput, const Matrix5x4 &aMatrix); + static void ApplyComposition_Scalar(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator); + + 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); + 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); + static void DoPremultiplicationCalculation_Scalar(const IntSize& aSize, + uint8_t* aTargetData, int32_t aTargetStride, + uint8_t* aSourceData, int32_t aSourceStride); + static void DoUnpremultiplicationCalculation_Scalar(const IntSize& aSize, + uint8_t* aTargetData, int32_t aTargetStride, + uint8_t* aSourceData, int32_t aSourceStride); + static TemporaryRef + RenderTurbulence_Scalar(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency, + int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect); + static TemporaryRef + ApplyArithmeticCombine_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4); + +#ifdef USE_SSE2 + static void ExtractAlpha_SSE2(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride); + static TemporaryRef ConvertToB8G8R8A8_SSE2(SourceSurface* aSurface); + static TemporaryRef ApplyBlending_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode); + static void ApplyMorphologyHorizontal_SSE2(uint8_t* aSourceData, int32_t aSourceStride, + uint8_t* aDestData, int32_t aDestStride, + const IntRect& aDestRect, int32_t aRadius, + MorphologyOperator aOperator); + static void ApplyMorphologyVertical_SSE2(uint8_t* aSourceData, int32_t aSourceStride, + uint8_t* aDestData, int32_t aDestStride, + const IntRect& aDestRect, int32_t aRadius, + MorphologyOperator aOperator); + static TemporaryRef ApplyColorMatrix_SSE2(DataSourceSurface* aInput, const Matrix5x4 &aMatrix); + static void ApplyComposition_SSE2(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator); + 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); + 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); + static void DoPremultiplicationCalculation_SSE2(const IntSize& aSize, + uint8_t* aTargetData, int32_t aTargetStride, + uint8_t* aSourceData, int32_t aSourceStride); + static void DoUnpremultiplicationCalculation_SSE2(const IntSize& aSize, + uint8_t* aTargetData, int32_t aTargetStride, + uint8_t* aSourceData, int32_t aSourceStride); + static TemporaryRef + RenderTurbulence_SSE2(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency, + int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect); + static TemporaryRef + ApplyArithmeticCombine_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4); +#endif +}; + +// Constant-time max and min functions for unsigned arguments +static inline unsigned +umax(unsigned a, unsigned b) +{ + return a - ((a - b) & -(a < b)); +} + +static inline unsigned +umin(unsigned a, unsigned b) +{ + return a - ((a - b) & -(a > b)); +} + +} // namespace gfx +} // namespace mozilla + +#endif // _MOZILLA_GFX_FILTERPROCESSING_H_