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) 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 #ifndef FEBlend_h 24 #define FEBlend_h 25 26 #include "platform/graphics/filters/Filter.h" 27 #include "platform/graphics/filters/FilterEffect.h" 28 29 namespace WebCore { 30 31 enum BlendModeType { 32 FEBLEND_MODE_UNKNOWN = 0, 33 FEBLEND_MODE_NORMAL = 1, 34 FEBLEND_MODE_MULTIPLY = 2, 35 FEBLEND_MODE_SCREEN = 3, 36 FEBLEND_MODE_DARKEN = 4, 37 FEBLEND_MODE_LIGHTEN = 5 38 }; 39 40 class PLATFORM_EXPORT FEBlend : public FilterEffect { 41 public: 42 static PassRefPtr<FEBlend> create(Filter*, BlendModeType); 43 44 BlendModeType blendMode() const; 45 bool setBlendMode(BlendModeType); 46 47 void platformApplyGeneric(unsigned char* srcPixelArrayA, unsigned char* srcPixelArrayB, unsigned char* dstPixelArray, 48 unsigned colorArrayLength); 49 void platformApplyNEON(unsigned char* srcPixelArrayA, unsigned char* srcPixelArrayB, unsigned char* dstPixelArray, 50 unsigned colorArrayLength); 51 virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE; 52 53 virtual TextStream& externalRepresentation(TextStream&, int indention) const OVERRIDE; 54 55 private: 56 FEBlend(Filter*, BlendModeType); 57 58 virtual void applySoftware() OVERRIDE; 59 60 BlendModeType m_mode; 61 }; 62 63 } // namespace WebCore 64 65 #endif // FEBlend_h 66
