153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)/* 253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> 353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> 453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2005 Eric Seidel <eric@webkit.org> 553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> 653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2013 Google Inc. All rights reserved. 753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * 853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * This library is free software; you can redistribute it and/or 953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * modify it under the terms of the GNU Library General Public 1053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * License as published by the Free Software Foundation; either 1153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * version 2 of the License, or (at your option) any later version. 1253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * 1353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * This library is distributed in the hope that it will be useful, 1453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 1553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Library General Public License for more details. 1753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * 1853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * You should have received a copy of the GNU Library General Public License 1953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 2053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 2153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Boston, MA 02110-1301, USA. 2253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) */ 2353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 2453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "config.h" 2553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 2653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/filters/FEColorMatrix.h" 2753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 2853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/GraphicsContext.h" 2953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/filters/Filter.h" 3053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/filters/SkiaImageFilterBuilder.h" 3153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/skia/NativeImageSkia.h" 3253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/text/TextStream.h" 3353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/RenderTreeAsText.h" 3453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 357757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch#include "wtf/MathExtras.h" 367757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch#include "wtf/Uint8ClampedArray.h" 3753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 3853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "SkColorFilterImageFilter.h" 3953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "SkColorMatrixFilter.h" 4053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 4153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)namespace WebCore { 4253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 4353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)FEColorMatrix::FEColorMatrix(Filter* filter, ColorMatrixType type, const Vector<float>& values) 4453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) : FilterEffect(filter) 4553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) , m_type(type) 4653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) , m_values(values) 4753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 4853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 4953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 5053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)PassRefPtr<FEColorMatrix> FEColorMatrix::create(Filter* filter, ColorMatrixType type, const Vector<float>& values) 5153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 5253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return adoptRef(new FEColorMatrix(filter, type, values)); 5353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 5453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 5553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)ColorMatrixType FEColorMatrix::type() const 5653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 5753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return m_type; 5853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 5953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 6053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)bool FEColorMatrix::setType(ColorMatrixType type) 6153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 6253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (m_type == type) 6353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return false; 6453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) m_type = type; 6553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return true; 6653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 6753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 6853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)const Vector<float>& FEColorMatrix::values() const 6953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 7053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return m_values; 7153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 7253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 7353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)bool FEColorMatrix::setValues(const Vector<float> &values) 7453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 7553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (m_values == values) 7653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return false; 7753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) m_values = values; 7853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return true; 7953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 8053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 8153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)inline void matrix(float& red, float& green, float& blue, float& alpha, const Vector<float>& values) 8253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 8353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float r = values[0] * red + values[1] * green + values[2] * blue + values[3] * alpha + values[4] * 255; 8453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float g = values[5] * red + values[6] * green + values[7] * blue + values[8] * alpha + values[9] * 255; 8553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float b = values[10] * red + values[11] * green + values[12] * blue + values[13] * alpha + values[14] * 255; 8653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float a = values[15] * red + values[16] * green + values[17] * blue + values[18] * alpha + values[19] * 255; 8753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 8853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) red = r; 8953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) green = g; 9053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) blue = b; 9153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) alpha = a; 9253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 9353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 9453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)inline void saturateAndHueRotate(float& red, float& green, float& blue, const float* components) 9553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 9653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float r = red * components[0] + green * components[1] + blue * components[2]; 9753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float g = red * components[3] + green * components[4] + blue * components[5]; 9853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float b = red * components[6] + green * components[7] + blue * components[8]; 9953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 10053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) red = r; 10153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) green = g; 10253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) blue = b; 10353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 10453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 10553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)inline void luminance(float& red, float& green, float& blue, float& alpha) 10653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 10753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) alpha = 0.2125 * red + 0.7154 * green + 0.0721 * blue; 10853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) red = 0; 10953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) green = 0; 11053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) blue = 0; 11153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 11253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 11353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)template<ColorMatrixType filterType> 11453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)void effectType(Uint8ClampedArray* pixelArray, const Vector<float>& values) 11553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 11653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) unsigned pixelArrayLength = pixelArray->length(); 11753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float components[9]; 11853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 11953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (filterType == FECOLORMATRIX_TYPE_SATURATE) 12053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) FEColorMatrix::calculateSaturateComponents(components, values[0]); 12153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) else if (filterType == FECOLORMATRIX_TYPE_HUEROTATE) 12253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) FEColorMatrix::calculateHueRotateComponents(components, values[0]); 12353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 12453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) for (unsigned pixelByteOffset = 0; pixelByteOffset < pixelArrayLength; pixelByteOffset += 4) { 12553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float red = pixelArray->item(pixelByteOffset); 12653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float green = pixelArray->item(pixelByteOffset + 1); 12753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float blue = pixelArray->item(pixelByteOffset + 2); 12853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float alpha = pixelArray->item(pixelByteOffset + 3); 12953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 13053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) switch (filterType) { 13153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_MATRIX: 13253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix(red, green, blue, alpha, values); 13353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 13453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_SATURATE: 13553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_HUEROTATE: 13653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) saturateAndHueRotate(red, green, blue, components); 13753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 13853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 13953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) luminance(red, green, blue, alpha); 14053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 14153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 14253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 14353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) pixelArray->set(pixelByteOffset, red); 14453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) pixelArray->set(pixelByteOffset + 1, green); 14553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) pixelArray->set(pixelByteOffset + 2, blue); 14653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) pixelArray->set(pixelByteOffset + 3, alpha); 14753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 14853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 14953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 15053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)void FEColorMatrix::applySoftware() 15153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 15253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) FilterEffect* in = inputEffect(0); 15353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 15453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ImageBuffer* resultImage = createImageBufferResult(); 15553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (!resultImage) 15653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return; 15753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 1585267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) resultImage->context()->drawImageBuffer(in->asImageBuffer(), drawingRegionOfInputImage(in->absolutePaintRect())); 15953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 16053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) IntRect imageRect(IntPoint(), absolutePaintRect().size()); 16153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) RefPtr<Uint8ClampedArray> pixelArray = resultImage->getUnmultipliedImageData(imageRect); 16253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 16353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) switch (m_type) { 16453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_UNKNOWN: 16553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 16653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_MATRIX: 16753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) effectType<FECOLORMATRIX_TYPE_MATRIX>(pixelArray.get(), m_values); 16853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 16902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch case FECOLORMATRIX_TYPE_SATURATE: 17053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) effectType<FECOLORMATRIX_TYPE_SATURATE>(pixelArray.get(), m_values); 17153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 17253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_HUEROTATE: 17353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) effectType<FECOLORMATRIX_TYPE_HUEROTATE>(pixelArray.get(), m_values); 17453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 17553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 17653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) effectType<FECOLORMATRIX_TYPE_LUMINANCETOALPHA>(pixelArray.get(), m_values); 17753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) setIsAlphaImage(true); 17853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 17953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 18053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 18153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) resultImage->putByteArray(Unmultiplied, pixelArray.get(), imageRect.size(), imageRect, IntPoint()); 18253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 18353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 18453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)static void saturateMatrix(float s, SkScalar matrix[20]) 18553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 18653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[0] = 0.213f + 0.787f * s; 18753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[1] = 0.715f - 0.715f * s; 18853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[2] = 0.072f - 0.072f * s; 18953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[3] = matrix[4] = 0; 19053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[5] = 0.213f - 0.213f * s; 19153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[6] = 0.715f + 0.285f * s; 19253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[7] = 0.072f - 0.072f * s; 19353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[8] = matrix[9] = 0; 19453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[10] = 0.213f - 0.213f * s; 19553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[11] = 0.715f - 0.715f * s; 19653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[12] = 0.072f + 0.928f * s; 19753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[13] = matrix[14] = 0; 19853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[15] = matrix[16] = matrix[17] = 0; 19953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[18] = 1; 20053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[19] = 0; 20153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 20253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 20353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)static void hueRotateMatrix(float hue, SkScalar matrix[20]) 20453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 20553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float cosHue = cosf(hue * piFloat / 180); 20653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) float sinHue = sinf(hue * piFloat / 180); 20753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[0] = 0.213f + cosHue * 0.787f - sinHue * 0.213f; 20853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[1] = 0.715f - cosHue * 0.715f - sinHue * 0.715f; 20953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[2] = 0.072f - cosHue * 0.072f + sinHue * 0.928f; 21053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[3] = matrix[4] = 0; 21153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[5] = 0.213f - cosHue * 0.213f + sinHue * 0.143f; 21253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[6] = 0.715f + cosHue * 0.285f + sinHue * 0.140f; 21353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[7] = 0.072f - cosHue * 0.072f - sinHue * 0.283f; 21453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[8] = matrix[9] = 0; 21553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[10] = 0.213f - cosHue * 0.213f - sinHue * 0.787f; 21653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[11] = 0.715f - cosHue * 0.715f + sinHue * 0.715f; 21753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[12] = 0.072f + cosHue * 0.928f + sinHue * 0.072f; 21853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[13] = matrix[14] = 0; 21953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[15] = matrix[16] = matrix[17] = 0; 22053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[18] = 1; 22153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[19] = 0; 22253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 22353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 22453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)static void luminanceToAlphaMatrix(SkScalar matrix[20]) 22553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 22653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) memset(matrix, 0, 20 * sizeof(SkScalar)); 22753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[15] = 0.2125f; 22853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[16] = 0.7154f; 22953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[17] = 0.0721f; 23053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 23153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 23253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)static SkColorFilter* createColorFilter(ColorMatrixType type, const float* values) 23353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 23453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) SkScalar matrix[20]; 23553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) switch (type) { 23653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_UNKNOWN: 23753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 23853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_MATRIX: 23953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) for (int i = 0; i < 20; ++i) 24053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[i] = values[i]; 24153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 24253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[4] *= SkScalar(255); 24353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[9] *= SkScalar(255); 24453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[14] *= SkScalar(255); 24553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) matrix[19] *= SkScalar(255); 24653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 24753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_SATURATE: 24853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) saturateMatrix(values[0], matrix); 24953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 25053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_HUEROTATE: 25153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) hueRotateMatrix(values[0], matrix); 25253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 25353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 25453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) luminanceToAlphaMatrix(matrix); 25553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 25653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 25753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return new SkColorMatrixFilter(matrix); 25853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 25953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 26053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)bool FEColorMatrix::applySkia() 26153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 26253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ImageBuffer* resultImage = createImageBufferResult(); 26353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (!resultImage) 26453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return false; 26553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 26653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) FilterEffect* in = inputEffect(0); 26753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 268e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) SkRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect()); 26953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 27053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) SkAutoTUnref<SkColorFilter> filter(createColorFilter(m_type, m_values.data())); 27153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 27253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore); 27353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) RefPtr<NativeImageSkia> nativeImage = image->nativeImageForCurrentFrame(); 27453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (!nativeImage) 27553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return false; 27653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 27753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) SkPaint paint; 27853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) paint.setColorFilter(filter); 27953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) paint.setXfermodeMode(SkXfermode::kSrc_Mode); 280e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) resultImage->context()->drawBitmap(nativeImage->bitmap(), drawingRegion.fLeft, drawingRegion.fTop, &paint); 28153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return true; 28253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 28353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 284e6d4491e48613634a83c1957c72759da80987961Ben MurdochPassRefPtr<SkImageFilter> FEColorMatrix::createImageFilter(SkiaImageFilterBuilder* builder) 28553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 286e6d4491e48613634a83c1957c72759da80987961Ben Murdoch RefPtr<SkImageFilter> input(builder->build(inputEffect(0), operatingColorSpace())); 28753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) SkAutoTUnref<SkColorFilter> filter(createColorFilter(m_type, m_values.data())); 288e6d4491e48613634a83c1957c72759da80987961Ben Murdoch return adoptRef(SkColorFilterImageFilter::Create(filter, input.get())); 28953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 29053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 29153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)static TextStream& operator<<(TextStream& ts, const ColorMatrixType& type) 29253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 29353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) switch (type) { 29453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_UNKNOWN: 29553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "UNKNOWN"; 29653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 29753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_MATRIX: 29853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "MATRIX"; 29953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 30053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_SATURATE: 30153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "SATURATE"; 30253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 30353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_HUEROTATE: 30453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "HUEROTATE"; 30553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 30653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) case FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 30753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "LUMINANCETOALPHA"; 30853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) break; 30953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 31053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return ts; 31153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 31253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 31353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)TextStream& FEColorMatrix::externalRepresentation(TextStream& ts, int indent) const 31453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 31553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) writeIndent(ts, indent); 31653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "[feColorMatrix"; 31753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) FilterEffect::externalRepresentation(ts); 31853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << " type=\"" << m_type << "\""; 31953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (!m_values.isEmpty()) { 32053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << " values=\""; 32153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) Vector<float>::const_iterator ptr = m_values.begin(); 32253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) const Vector<float>::const_iterator end = m_values.end(); 32353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) while (ptr < end) { 32453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << *ptr; 32553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ++ptr; 32602772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch if (ptr < end) 32753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << " "; 32853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 32953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "\""; 33053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) } 33153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) ts << "]\n"; 33253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) inputEffect(0)->externalRepresentation(ts, indent + 1); 33353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return ts; 33453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 33553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 33653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} // namespace WebCore 337