2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
3 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
4 * Copyright (C) 2013 Google Inc. All rights reserved.
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.
24 #include "core/svg/graphics/filters/SVGFilter.h"
28 SVGFilter::SVGFilter(const IntRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode)
29 : Filter(AffineTransform())
30 , m_absoluteSourceDrawingRegion(absoluteSourceDrawingRegion)
31 , m_targetBoundingBox(targetBoundingBox)
32 , m_effectBBoxMode(effectBBoxMode)
34 setFilterRegion(filterRegion);
37 float SVGFilter::applyHorizontalScale(float value) const
40 value *= m_targetBoundingBox.width();
41 return Filter::applyHorizontalScale(value);
44 float SVGFilter::applyVerticalScale(float value) const
47 value *= m_targetBoundingBox.height();
48 return Filter::applyVerticalScale(value);
51 FloatPoint3D SVGFilter::resolve3dPoint(const FloatPoint3D& point) const
53 if (!m_effectBBoxMode)
55 return FloatPoint3D(point.x() * m_targetBoundingBox.width() + m_targetBoundingBox.x(),
56 point.y() * m_targetBoundingBox.height() + m_targetBoundingBox.y(),
57 point.z() * sqrtf(m_targetBoundingBox.size().diagonalLengthSquared() / 2));
60 PassRefPtr<SVGFilter> SVGFilter::create(const IntRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode)
62 return adoptRef(new SVGFilter(absoluteSourceDrawingRegion, targetBoundingBox, filterRegion, effectBBoxMode));