| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
| * Copyright (C) 2005 Eric Seidel <eric@webkit.org> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #pragma once |
| |
| #include "FilterEffect.h" |
| |
| #include "Filter.h" |
| #include <wtf/text/WTFString.h> |
| |
| namespace WebCore { |
| |
| enum CompositeOperationType { |
| FECOMPOSITE_OPERATOR_UNKNOWN = 0, |
| FECOMPOSITE_OPERATOR_OVER = 1, |
| FECOMPOSITE_OPERATOR_IN = 2, |
| FECOMPOSITE_OPERATOR_OUT = 3, |
| FECOMPOSITE_OPERATOR_ATOP = 4, |
| FECOMPOSITE_OPERATOR_XOR = 5, |
| FECOMPOSITE_OPERATOR_ARITHMETIC = 6, |
| FECOMPOSITE_OPERATOR_LIGHTER = 7 |
| }; |
| |
| class FEComposite : public FilterEffect { |
| public: |
| static Ref<FEComposite> create(Filter&, const CompositeOperationType&, float, float, float, float); |
| |
| CompositeOperationType operation() const { return m_type; } |
| bool setOperation(CompositeOperationType); |
| |
| float k1() const { return m_k1; } |
| bool setK1(float); |
| |
| float k2() const { return m_k2; } |
| bool setK2(float); |
| |
| float k3() const { return m_k3; } |
| bool setK3(float); |
| |
| float k4() const { return m_k4; } |
| bool setK4(float); |
| |
| protected: |
| bool requiresValidPreMultipliedPixels() override { return m_type != FECOMPOSITE_OPERATOR_ARITHMETIC; } |
| |
| private: |
| FEComposite(Filter&, const CompositeOperationType&, float, float, float, float); |
| |
| const char* filterName() const final { return "FEComposite"; } |
| |
| void correctFilterResultIfNeeded() override; |
| void determineAbsolutePaintRect() override; |
| |
| void platformApplySoftware() override; |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, RepresentationType) const override; |
| |
| inline void platformArithmeticSoftware(const Uint8ClampedArray& source, Uint8ClampedArray& destination, float k1, float k2, float k3, float k4); |
| |
| #if HAVE(ARM_NEON_INTRINSICS) |
| template <int b1, int b4> |
| static inline void computeArithmeticPixelsNeon(const uint8_t* source, uint8_t* destination, unsigned pixelArrayLength, float k1, float k2, float k3, float k4); |
| |
| static inline void platformArithmeticNeon(const uint8_t* source, uint8_t* destination, unsigned pixelArrayLength, float k1, float k2, float k3, float k4); |
| #endif |
| |
| CompositeOperationType m_type; |
| float m_k1; |
| float m_k2; |
| float m_k3; |
| float m_k4; |
| }; |
| |
| } // namespace WebCore |
| |