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* Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
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* Copyright (C) 2005 Eric Seidel <eric@webkit.org>
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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#include "FilterEffect.h"
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#include <wtf/text/WTFString.h>
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enum CompositeOperationType {
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FECOMPOSITE_OPERATOR_UNKNOWN = 0,
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FECOMPOSITE_OPERATOR_OVER = 1,
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FECOMPOSITE_OPERATOR_IN = 2,
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FECOMPOSITE_OPERATOR_OUT = 3,
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FECOMPOSITE_OPERATOR_ATOP = 4,
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FECOMPOSITE_OPERATOR_XOR = 5,
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FECOMPOSITE_OPERATOR_ARITHMETIC = 6
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class FEComposite : public FilterEffect {
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static PassRefPtr<FEComposite> create(Filter*, const CompositeOperationType&, float, float, float, float);
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CompositeOperationType operation() const;
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bool setOperation(CompositeOperationType);
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virtual void correctFilterResultIfNeeded() OVERRIDE;
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virtual void platformApplySoftware();
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virtual void determineAbsolutePaintRect();
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virtual TextStream& externalRepresentation(TextStream&, int indention) const;
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virtual bool requiresValidPreMultipliedPixels() OVERRIDE { return m_type != FECOMPOSITE_OPERATOR_ARITHMETIC; }
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FEComposite(Filter*, const CompositeOperationType&, float, float, float, float);
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inline void platformArithmeticSoftware(Uint8ClampedArray* source, Uint8ClampedArray* destination,
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float k1, float k2, float k3, float k4);
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template <int b1, int b4>
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static inline void computeArithmeticPixelsNeon(unsigned char* source, unsigned char* destination,
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unsigned pixelArrayLength, float k1, float k2, float k3, float k4);
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static inline void platformArithmeticNeon(unsigned char* source, unsigned char* destination,
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unsigned pixelArrayLength, float k1, float k2, float k3, float k4);
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CompositeOperationType m_type;
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} // namespace WebCore
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#endif // ENABLE(FILTERS)
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#endif // FEComposite_h