15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2005 Eric Seidel <eric@webkit.org> 553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2013 Google Inc. All rights reserved. 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef FEColorMatrix_h 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define FEColorMatrix_h 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 26a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles)#include "platform/graphics/filters/Filter.h" 27a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles)#include "platform/graphics/filters/FilterEffect.h" 287757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch#include "wtf/Vector.h" 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)enum ColorMatrixType { 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FECOLORMATRIX_TYPE_UNKNOWN = 0, 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FECOLORMATRIX_TYPE_MATRIX = 1, 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FECOLORMATRIX_TYPE_SATURATE = 2, 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FECOLORMATRIX_TYPE_HUEROTATE = 3, 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FECOLORMATRIX_TYPE_LUMINANCETOALPHA = 4 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 40a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles)class PLATFORM_EXPORT FEColorMatrix : public FilterEffect { 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static PassRefPtr<FEColorMatrix> create(Filter*, ColorMatrixType, const Vector<float>&); 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ColorMatrixType type() const; 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setType(ColorMatrixType); 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const Vector<float>& values() const; 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setValues(const Vector<float>&); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 503c9e4aeaee9f9b0a9a814da07bcb33319c7ea363Ben Murdoch virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE; 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual TextStream& externalRepresentation(TextStream&, int indention) const; 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 54926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) static inline void calculateSaturateComponents(float* components, float value); 55926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) static inline void calculateHueRotateComponents(float* components, float value); 56926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)private: 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FEColorMatrix(Filter*, ColorMatrixType, const Vector<float>&); 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) virtual void applySoftware() OVERRIDE; 6153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) virtual bool applySkia() OVERRIDE; 6253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ColorMatrixType m_type; 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Vector<float> m_values; 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 67926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles)inline void FEColorMatrix::calculateSaturateComponents(float* components, float value) 68926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles){ 69926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[0] = (0.213 + 0.787 * value); 70926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[1] = (0.715 - 0.715 * value); 71926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[2] = (0.072 - 0.072 * value); 72926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[3] = (0.213 - 0.213 * value); 73926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[4] = (0.715 + 0.285 * value); 74926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[5] = (0.072 - 0.072 * value); 75926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[6] = (0.213 - 0.213 * value); 76926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[7] = (0.715 - 0.715 * value); 77926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[8] = (0.072 + 0.928 * value); 78926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles)} 79926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 80926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles)inline void FEColorMatrix::calculateHueRotateComponents(float* components, float value) 81926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles){ 82926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) float cosHue = cos(value * piFloat / 180); 83926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) float sinHue = sin(value * piFloat / 180); 84926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[0] = 0.213 + cosHue * 0.787 - sinHue * 0.213; 85926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[1] = 0.715 - cosHue * 0.715 - sinHue * 0.715; 86926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[2] = 0.072 - cosHue * 0.072 + sinHue * 0.928; 87926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[3] = 0.213 - cosHue * 0.213 + sinHue * 0.143; 88926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[4] = 0.715 + cosHue * 0.285 + sinHue * 0.140; 89926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[5] = 0.072 - cosHue * 0.072 - sinHue * 0.283; 90926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[6] = 0.213 - cosHue * 0.213 - sinHue * 0.787; 91926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[7] = 0.715 - cosHue * 0.715 + sinHue * 0.715; 92926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) components[8] = 0.072 + cosHue * 0.928 + sinHue * 0.072; 93926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles)} 94926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 95926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // FEColorMatrix_h 99