| /* |
| * 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> |
| * Copyright (C) Apple Inc. 2021 All rights reserved. |
| * |
| * 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 "ColorComponents.h" |
| #include "ColorTypes.h" |
| #include "FilterEffectApplier.h" |
| #include <JavaScriptCore/Forward.h> |
| |
| namespace WebCore { |
| |
| class FEMorphology; |
| enum class MorphologyOperatorType; |
| |
| class FEMorphologySoftwareApplier : public FilterEffectConcreteApplier<FEMorphology> { |
| WTF_MAKE_FAST_ALLOCATED; |
| using Base = FilterEffectConcreteApplier<FEMorphology>; |
| |
| public: |
| using Base::Base; |
| |
| bool apply(const Filter&, const FilterImageVector& inputs, FilterImage& result) const override; |
| |
| private: |
| using ColumnExtrema = Vector<ColorComponents<uint8_t, 4>, 16>; |
| |
| struct PaintingData { |
| MorphologyOperatorType type; |
| int radiusX; |
| int radiusY; |
| const Uint8ClampedArray* srcPixelArray; |
| Uint8ClampedArray* dstPixelArray; |
| int width; |
| int height; |
| }; |
| |
| struct ApplyParameters { |
| const PaintingData* paintingData; |
| int startY; |
| int endY; |
| }; |
| |
| static inline int pixelArrayIndex(int x, int y, int width) { return (y * width + x) * 4; } |
| static inline PackedColor::RGBA makePixelValueFromColorComponents(const ColorComponents<uint8_t, 4>& components) { return PackedColor::RGBA { makeFromComponents<SRGBA<uint8_t>>(components) }; } |
| |
| static inline ColorComponents<uint8_t, 4> makeColorComponentsfromPixelValue(PackedColor::RGBA pixel) { return asColorComponents(asSRGBA(pixel)); } |
| static inline ColorComponents<uint8_t, 4> minOrMax(const ColorComponents<uint8_t, 4>& a, const ColorComponents<uint8_t, 4>& b, MorphologyOperatorType); |
| static inline ColorComponents<uint8_t, 4> columnExtremum(const Uint8ClampedArray& srcPixelArray, int x, int yStart, int yEnd, int width, MorphologyOperatorType); |
| static inline ColorComponents<uint8_t, 4> kernelExtremum(const ColumnExtrema& kernel, MorphologyOperatorType); |
| |
| static void applyPlatformGeneric(const PaintingData&, int startY, int endY); |
| static void applyPlatformWorker(ApplyParameters*); |
| static void applyPlatform(const PaintingData&); |
| }; |
| |
| } // namespace WebCore |