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 "core/platform/graphics/filters/FilterEffect.h" 27 28 #include "core/platform/graphics/filters/Filter.h" 29 30 namespace WebCore { 31 32 enum BlendModeType { 33 FEBLEND_MODE_UNKNOWN = 0, 34 FEBLEND_MODE_NORMAL = 1, 35 FEBLEND_MODE_MULTIPLY = 2, 36 FEBLEND_MODE_SCREEN = 3, 37 FEBLEND_MODE_DARKEN = 4, 38 FEBLEND_MODE_LIGHTEN = 5 39 }; 40 41 class FEBlend : public FilterEffect { 42 public: 43 static PassRefPtr<FEBlend> create(Filter*, BlendModeType); 44 45 BlendModeType blendMode() const; 46 bool setBlendMode(BlendModeType); 47 48 void platformApplyGeneric(unsigned char* srcPixelArrayA, unsigned char* srcPixelArrayB, unsigned char* dstPixelArray, 49 unsigned colorArrayLength); 50 void platformApplyNEON(unsigned char* srcPixelArrayA, unsigned char* srcPixelArrayB, unsigned char* dstPixelArray, 51 unsigned colorArrayLength); 52 virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE; 53 54 virtual TextStream& externalRepresentation(TextStream&, int indention) const; 55 56 private: 57 FEBlend(Filter*, BlendModeType); 58 59 virtual void applySoftware() OVERRIDE; 60 virtual bool applySkia() OVERRIDE; 61 62 BlendModeType m_mode; 63 }; 64 65 } // namespace WebCore 66 67 #endif // FEBlend_h 68
