| /* |
| * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> |
| * 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 "LightSource.h" |
| #include <wtf/Ref.h> |
| |
| namespace WebCore { |
| |
| class DistantLightSource : public LightSource { |
| public: |
| WEBCORE_EXPORT static Ref<DistantLightSource> create(float azimuth, float elevation); |
| |
| // These are in degrees. |
| float azimuth() const { return m_azimuth; } |
| float elevation() const { return m_elevation; } |
| |
| bool setAzimuth(float) override; |
| bool setElevation(float) override; |
| |
| void initPaintingData(const Filter&, const FilterImage& result, PaintingData&) const override; |
| ComputedLightingData computePixelLightingData(const PaintingData&, int x, int y, float z) const final; |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&) const override; |
| |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static std::optional<Ref<DistantLightSource>> decode(Decoder&); |
| |
| private: |
| DistantLightSource(float azimuth, float elevation); |
| |
| float m_azimuth; |
| float m_elevation; |
| }; |
| |
| template<class Encoder> |
| void DistantLightSource::encode(Encoder& encoder) const |
| { |
| encoder << m_azimuth; |
| encoder << m_elevation; |
| } |
| |
| template<class Decoder> |
| std::optional<Ref<DistantLightSource>> DistantLightSource::decode(Decoder& decoder) |
| { |
| std::optional<float> azimuth; |
| decoder >> azimuth; |
| if (!azimuth) |
| return std::nullopt; |
| |
| std::optional<float> elevation; |
| decoder >> elevation; |
| if (!elevation) |
| return std::nullopt; |
| |
| return DistantLightSource::create(*azimuth, *elevation); |
| } |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_LIGHTSOURCE(DistantLightSource, LS_DISTANT) |