1/* 2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> 4 * Copyright (C) 2005 Eric Seidel <eric@webkit.org> 5 * Copyright (C) 2013 Google Inc. All rights reserved. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23#include "config.h" 24#include "platform/graphics/filters/FESpecularLighting.h" 25 26#include "platform/graphics/filters/LightSource.h" 27#include "platform/text/TextStream.h" 28 29namespace blink { 30 31FESpecularLighting::FESpecularLighting(Filter* filter, const Color& lightingColor, float surfaceScale, 32 float specularConstant, float specularExponent, float kernelUnitLengthX, 33 float kernelUnitLengthY, PassRefPtr<LightSource> lightSource) 34 : FELighting(filter, SpecularLighting, lightingColor, surfaceScale, 0, specularConstant, specularExponent, kernelUnitLengthX, kernelUnitLengthY, lightSource) 35{ 36} 37 38PassRefPtr<FESpecularLighting> FESpecularLighting::create(Filter* filter, const Color& lightingColor, 39 float surfaceScale, float specularConstant, float specularExponent, 40 float kernelUnitLengthX, float kernelUnitLengthY, PassRefPtr<LightSource> lightSource) 41{ 42 return adoptRef(new FESpecularLighting(filter, lightingColor, surfaceScale, specularConstant, specularExponent, 43 kernelUnitLengthX, kernelUnitLengthY, lightSource)); 44} 45 46FESpecularLighting::~FESpecularLighting() 47{ 48} 49 50Color FESpecularLighting::lightingColor() const 51{ 52 return m_lightingColor; 53} 54 55bool FESpecularLighting::setLightingColor(const Color& lightingColor) 56{ 57 if (m_lightingColor == lightingColor) 58 return false; 59 m_lightingColor = lightingColor; 60 return true; 61} 62 63float FESpecularLighting::surfaceScale() const 64{ 65 return m_surfaceScale; 66} 67 68bool FESpecularLighting::setSurfaceScale(float surfaceScale) 69{ 70 if (m_surfaceScale == surfaceScale) 71 return false; 72 m_surfaceScale = surfaceScale; 73 return true; 74} 75 76float FESpecularLighting::specularConstant() const 77{ 78 return m_specularConstant; 79} 80 81bool FESpecularLighting::setSpecularConstant(float specularConstant) 82{ 83 specularConstant = std::max(specularConstant, 0.0f); 84 if (m_specularConstant == specularConstant) 85 return false; 86 m_specularConstant = specularConstant; 87 return true; 88} 89 90float FESpecularLighting::specularExponent() const 91{ 92 return m_specularExponent; 93} 94 95bool FESpecularLighting::setSpecularExponent(float specularExponent) 96{ 97 specularExponent = std::min(std::max(specularExponent, 1.0f), 128.0f); 98 if (m_specularExponent == specularExponent) 99 return false; 100 m_specularExponent = specularExponent; 101 return true; 102} 103 104float FESpecularLighting::kernelUnitLengthX() const 105{ 106 return m_kernelUnitLengthX; 107} 108 109bool FESpecularLighting::setKernelUnitLengthX(float kernelUnitLengthX) 110{ 111 if (m_kernelUnitLengthX == kernelUnitLengthX) 112 return false; 113 m_kernelUnitLengthX = kernelUnitLengthX; 114 return true; 115} 116 117float FESpecularLighting::kernelUnitLengthY() const 118{ 119 return m_kernelUnitLengthY; 120} 121 122bool FESpecularLighting::setKernelUnitLengthY(float kernelUnitLengthY) 123{ 124 if (m_kernelUnitLengthY == kernelUnitLengthY) 125 return false; 126 m_kernelUnitLengthY = kernelUnitLengthY; 127 return true; 128} 129 130const LightSource* FESpecularLighting::lightSource() const 131{ 132 return m_lightSource.get(); 133} 134 135void FESpecularLighting::setLightSource(PassRefPtr<LightSource> lightSource) 136{ 137 m_lightSource = lightSource; 138} 139 140TextStream& FESpecularLighting::externalRepresentation(TextStream& ts, int indent) const 141{ 142 writeIndent(ts, indent); 143 ts << "[feSpecularLighting"; 144 FilterEffect::externalRepresentation(ts); 145 ts << " surfaceScale=\"" << m_surfaceScale << "\" " 146 << "specualConstant=\"" << m_specularConstant << "\" " 147 << "specularExponent=\"" << m_specularExponent << "\"]\n"; 148 inputEffect(0)->externalRepresentation(ts, indent + 1); 149 return ts; 150} 151 152} // namespace blink 153