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