1 /* 2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org> 4 * Copyright (C) 2005 Eric Seidel <eric (at) webkit.org> 5 * Copyright (C) 2009 Dirk Schulze <krit (at) webkit.org> 6 * Copyright (C) 2013 Google Inc. All rights reserved. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 */ 23 24 #include "config.h" 25 #include "platform/graphics/filters/FEFlood.h" 26 27 #include "SkColorFilter.h" 28 #include "SkColorFilterImageFilter.h" 29 #include "platform/graphics/GraphicsContext.h" 30 #include "platform/graphics/filters/SkiaImageFilterBuilder.h" 31 #include "platform/text/TextStream.h" 32 #include "third_party/skia/include/core/SkDevice.h" 33 34 namespace blink { 35 36 FEFlood::FEFlood(Filter* filter, const Color& floodColor, float floodOpacity) 37 : FilterEffect(filter) 38 , m_floodColor(floodColor) 39 , m_floodOpacity(floodOpacity) 40 { 41 FilterEffect::setOperatingColorSpace(ColorSpaceDeviceRGB); 42 } 43 44 PassRefPtr<FEFlood> FEFlood::create(Filter* filter, const Color& floodColor, float floodOpacity) 45 { 46 return adoptRef(new FEFlood(filter, floodColor, floodOpacity)); 47 } 48 49 Color FEFlood::floodColor() const 50 { 51 return m_floodColor; 52 } 53 54 bool FEFlood::setFloodColor(const Color& color) 55 { 56 if (m_floodColor == color) 57 return false; 58 m_floodColor = color; 59 return true; 60 } 61 62 float FEFlood::floodOpacity() const 63 { 64 return m_floodOpacity; 65 } 66 67 bool FEFlood::setFloodOpacity(float floodOpacity) 68 { 69 if (m_floodOpacity == floodOpacity) 70 return false; 71 m_floodOpacity = floodOpacity; 72 return true; 73 } 74 75 void FEFlood::applySoftware() 76 { 77 ImageBuffer* resultImage = createImageBufferResult(); 78 if (!resultImage) 79 return; 80 81 Color color = floodColor().combineWithAlpha(floodOpacity()); 82 resultImage->context()->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()), color); 83 FilterEffect::setResultColorSpace(ColorSpaceDeviceRGB); 84 } 85 86 PassRefPtr<SkImageFilter> FEFlood::createImageFilter(SkiaImageFilterBuilder* builder) 87 { 88 Color color = floodColor().combineWithAlpha(floodOpacity()); 89 90 SkImageFilter::CropRect rect = getCropRect(builder->cropOffset()); 91 SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(color.rgb(), SkXfermode::kSrc_Mode)); 92 return adoptRef(SkColorFilterImageFilter::Create(cf, 0, &rect)); 93 } 94 95 TextStream& FEFlood::externalRepresentation(TextStream& ts, int indent) const 96 { 97 writeIndent(ts, indent); 98 ts << "[feFlood"; 99 FilterEffect::externalRepresentation(ts); 100 ts << " flood-color=\"" << floodColor().nameForRenderTreeAsText() << "\" " 101 << "flood-opacity=\"" << floodOpacity() << "\"]\n"; 102 return ts; 103 } 104 105 } // namespace blink 106
