| /* |
| * 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 ChannelSelectorType { |
| CHANNEL_UNKNOWN = 0, |
| CHANNEL_R = 1, |
| CHANNEL_G = 2, |
| CHANNEL_B = 3, |
| CHANNEL_A = 4 |
| }; |
| |
| class FEDisplacementMap : public FilterEffect { |
| public: |
| static Ref<FEDisplacementMap> create(Filter&, ChannelSelectorType xChannelSelector, ChannelSelectorType yChannelSelector, float scale); |
| |
| ChannelSelectorType xChannelSelector() const { return m_xChannelSelector; } |
| bool setXChannelSelector(const ChannelSelectorType); |
| |
| ChannelSelectorType yChannelSelector() const { return m_yChannelSelector; } |
| bool setYChannelSelector(const ChannelSelectorType); |
| |
| float scale() const { return m_scale; } |
| bool setScale(float); |
| |
| void setResultColorSpace(const DestinationColorSpace&) override; |
| void transformResultColorSpace(FilterEffect*, const int) override; |
| |
| private: |
| FEDisplacementMap(Filter&, ChannelSelectorType xChannelSelector, ChannelSelectorType yChannelSelector, float); |
| |
| const char* filterName() const final { return "FEDisplacementMap"; } |
| |
| void platformApplySoftware() override; |
| |
| void determineAbsolutePaintRect() override { setAbsolutePaintRect(enclosingIntRect(maxEffectRect())); } |
| |
| int xChannelIndex() const { return m_xChannelSelector - 1; } |
| int yChannelIndex() const { return m_yChannelSelector - 1; } |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, RepresentationType) const override; |
| |
| ChannelSelectorType m_xChannelSelector; |
| ChannelSelectorType m_yChannelSelector; |
| float m_scale; |
| }; |
| |
| } // namespace WebCore |
| |