| /* |
| * 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) 2021 Apple Inc. 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 "FilterEffectApplier.h" |
| |
| namespace WebCore { |
| |
| class FEComponentTransfer; |
| class PixelBuffer; |
| struct ComponentTransferFunction; |
| |
| class FEComponentTransferSoftwareApplier : public FilterEffectConcreteApplier<FEComponentTransfer> { |
| using Base = FilterEffectConcreteApplier<FEComponentTransfer>; |
| |
| public: |
| using Base::Base; |
| |
| bool apply(const Filter&, const FilterImageVector& inputs, FilterImage& result) override; |
| |
| private: |
| using LookupTable = std::array<uint8_t, 256>; |
| |
| static void computeIdentityTable(LookupTable&, const ComponentTransferFunction&); |
| static void computeTabularTable(LookupTable&, const ComponentTransferFunction&); |
| static void computeDiscreteTable(LookupTable&, const ComponentTransferFunction&); |
| static void computeLinearTable(LookupTable&, const ComponentTransferFunction&); |
| static void computeGammaTable(LookupTable&, const ComponentTransferFunction&); |
| |
| static LookupTable computeLookupTable(const ComponentTransferFunction&); |
| |
| void applyPlatform(PixelBuffer&) const; |
| }; |
| |
| } // namespace WebCore |