| /* |
| * Copyright (C) 2010 University of Szeged |
| * Copyright (C) 2010 Zoltan Herczeg |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef FELighting_h |
| #define FELighting_h |
| |
| #if ENABLE(FILTERS) |
| #include "Color.h" |
| #include "Filter.h" |
| #include "FilterEffect.h" |
| #include "LightSource.h" |
| #include "PointLightSource.h" |
| #include "SpotLightSource.h" |
| #include <wtf/Uint8ClampedArray.h> |
| |
| // Common base class for FEDiffuseLighting and FESpecularLighting |
| |
| namespace WebCore { |
| |
| struct FELightingPaintingDataForNeon; |
| |
| class FELighting : public FilterEffect { |
| public: |
| virtual void platformApplySoftware(); |
| #if USE(SKIA) |
| virtual SkImageFilter* createImageFilter(SkiaImageFilterBuilder*); |
| virtual bool platformApplySkia(); |
| #endif |
| |
| virtual void determineAbsolutePaintRect() { setAbsolutePaintRect(enclosingIntRect(maxEffectRect())); } |
| |
| protected: |
| static const int s_minimalRectDimension = 100 * 100; // Empirical data limit for parallel jobs |
| |
| enum LightingType { |
| DiffuseLighting, |
| SpecularLighting |
| }; |
| |
| struct LightingData { |
| // This structure contains only read-only (SMP safe) data |
| Uint8ClampedArray* pixels; |
| float surfaceScale; |
| int widthMultipliedByPixelSize; |
| int widthDecreasedByOne; |
| int heightDecreasedByOne; |
| |
| inline void topLeft(int offset, IntPoint& normalVector); |
| inline void topRow(int offset, IntPoint& normalVector); |
| inline void topRight(int offset, IntPoint& normalVector); |
| inline void leftColumn(int offset, IntPoint& normalVector); |
| inline void interior(int offset, IntPoint& normalVector); |
| inline void rightColumn(int offset, IntPoint& normalVector); |
| inline void bottomLeft(int offset, IntPoint& normalVector); |
| inline void bottomRow(int offset, IntPoint& normalVector); |
| inline void bottomRight(int offset, IntPoint& normalVector); |
| }; |
| |
| template<typename Type> |
| friend class ParallelJobs; |
| |
| struct PlatformApplyGenericParameters { |
| FELighting* filter; |
| LightingData data; |
| LightSource::PaintingData paintingData; |
| int yStart; |
| int yEnd; |
| }; |
| |
| static void platformApplyGenericWorker(PlatformApplyGenericParameters*); |
| static void platformApplyNeonWorker(FELightingPaintingDataForNeon*); |
| |
| FELighting(Filter*, LightingType, const Color&, float, float, float, float, float, float, PassRefPtr<LightSource>); |
| |
| bool drawLighting(Uint8ClampedArray*, int, int); |
| inline void inlineSetPixel(int offset, LightingData&, LightSource::PaintingData&, |
| int lightX, int lightY, float factorX, float factorY, IntPoint& normalVector); |
| |
| // Not worth to inline every occurence of setPixel. |
| void setPixel(int offset, LightingData&, LightSource::PaintingData&, |
| int lightX, int lightY, float factorX, float factorY, IntPoint& normalVector); |
| |
| inline void platformApply(LightingData&, LightSource::PaintingData&); |
| |
| inline void platformApplyGenericPaint(LightingData&, LightSource::PaintingData&, int startX, int startY); |
| inline void platformApplyGeneric(LightingData&, LightSource::PaintingData&); |
| |
| static int getPowerCoefficients(float exponent); |
| inline void platformApplyNeon(LightingData&, LightSource::PaintingData&); |
| |
| LightingType m_lightingType; |
| RefPtr<LightSource> m_lightSource; |
| |
| Color m_lightingColor; |
| float m_surfaceScale; |
| float m_diffuseConstant; |
| float m_specularConstant; |
| float m_specularExponent; |
| float m_kernelUnitLengthX; |
| float m_kernelUnitLengthY; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(FILTERS) |
| |
| #endif // FELighting_h |