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>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
22 #ifndef FEMorphology_h
23 #define FEMorphology_h
26 #include "FilterEffect.h"
31 enum MorphologyOperatorType {
32 FEMORPHOLOGY_OPERATOR_UNKNOWN = 0,
33 FEMORPHOLOGY_OPERATOR_ERODE = 1,
34 FEMORPHOLOGY_OPERATOR_DILATE = 2
37 class FEMorphology : public FilterEffect {
39 static PassRefPtr<FEMorphology> create(Filter*, MorphologyOperatorType, float radiusX, float radiusY);
40 MorphologyOperatorType morphologyOperator() const;
41 bool setMorphologyOperator(MorphologyOperatorType);
43 float radiusX() const;
44 bool setRadiusX(float);
46 float radiusY() const;
47 bool setRadiusY(float);
49 virtual void platformApplySoftware();
52 virtual void determineAbsolutePaintRect();
54 virtual TextStream& externalRepresentation(TextStream&, int indention) const;
57 ByteArray* srcPixelArray;
58 ByteArray* dstPixelArray;
65 #if ENABLE(PARALLEL_JOBS)
66 static const int s_minimalArea = (300 * 300); // Empirical data limit for parallel jobs
68 struct PlatformApplyParameters {
72 PaintingData* paintingData;
75 static void platformApplyWorker(PlatformApplyParameters*);
78 inline void platformApply(PaintingData*);
79 inline void platformApplyGeneric(PaintingData*, const int yStart, const int yEnd);
81 FEMorphology(Filter*, MorphologyOperatorType, float radiusX, float radiusY);
83 MorphologyOperatorType m_type;
88 } // namespace WebCore
90 #endif // ENABLE(FILTERS)
92 #endif // FEMorphology_h