2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
4 * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
5 * Copyright (C) 2013 Google Inc. All rights reserved.
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.
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.
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.
26 #include "SkXfermode.h"
27 #include "platform/graphics/filters/FilterEffect.h"
28 #include "wtf/text/WTFString.h"
32 enum CompositeOperationType {
33 FECOMPOSITE_OPERATOR_UNKNOWN = 0,
34 FECOMPOSITE_OPERATOR_OVER = 1,
35 FECOMPOSITE_OPERATOR_IN = 2,
36 FECOMPOSITE_OPERATOR_OUT = 3,
37 FECOMPOSITE_OPERATOR_ATOP = 4,
38 FECOMPOSITE_OPERATOR_XOR = 5,
39 FECOMPOSITE_OPERATOR_ARITHMETIC = 6
42 class PLATFORM_EXPORT FEComposite : public FilterEffect {
44 static PassRefPtr<FEComposite> create(Filter*, const CompositeOperationType&, float, float, float, float);
46 CompositeOperationType operation() const;
47 bool setOperation(CompositeOperationType);
61 virtual FloatRect determineAbsolutePaintRect(const FloatRect& requestedRect) override;
63 virtual TextStream& externalRepresentation(TextStream&, int indention) const override;
65 virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) override;
66 virtual PassRefPtr<SkImageFilter> createImageFilterWithoutValidation(SkiaImageFilterBuilder*) override;
69 virtual bool mayProduceInvalidPreMultipliedPixels() override { return m_type == FECOMPOSITE_OPERATOR_ARITHMETIC; }
72 FEComposite(Filter*, const CompositeOperationType&, float, float, float, float);
74 PassRefPtr<SkImageFilter> createImageFilterInternal(SkiaImageFilterBuilder*, bool requiresPMColorValidation);
76 inline void platformArithmeticSoftware(Uint8ClampedArray* source, Uint8ClampedArray* destination,
77 float k1, float k2, float k3, float k4);
78 template <int b1, int b4>
79 static inline void computeArithmeticPixelsNeon(unsigned char* source, unsigned char* destination,
80 unsigned pixelArrayLength, float k1, float k2, float k3, float k4);
81 static inline void platformArithmeticNeon(unsigned char* source, unsigned char* destination,
82 unsigned pixelArrayLength, float k1, float k2, float k3, float k4);
84 CompositeOperationType m_type;
93 #endif // FEComposite_h