| /* |
| * 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) 2013 Google 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. |
| */ |
| |
| #ifndef FEColorMatrix_h |
| #define FEColorMatrix_h |
| |
| #include "platform/graphics/filters/FilterEffect.h" |
| #include "wtf/Vector.h" |
| |
| namespace blink { |
| |
| enum ColorMatrixType { |
| FECOLORMATRIX_TYPE_UNKNOWN = 0, |
| FECOLORMATRIX_TYPE_MATRIX = 1, |
| FECOLORMATRIX_TYPE_SATURATE = 2, |
| FECOLORMATRIX_TYPE_HUEROTATE = 3, |
| FECOLORMATRIX_TYPE_LUMINANCETOALPHA = 4 |
| }; |
| |
| class PLATFORM_EXPORT FEColorMatrix final : public FilterEffect { |
| public: |
| static FEColorMatrix* create(Filter*, ColorMatrixType, const Vector<float>&); |
| |
| ColorMatrixType type() const; |
| bool setType(ColorMatrixType); |
| |
| const Vector<float>& values() const; |
| bool setValues(const Vector<float>&); |
| |
| TextStream& externalRepresentation(TextStream&, int indention) const override; |
| |
| static inline void calculateSaturateComponents(float* components, |
| float value); |
| static inline void calculateHueRotateComponents(float* components, |
| float value); |
| |
| private: |
| FEColorMatrix(Filter*, ColorMatrixType, const Vector<float>&); |
| |
| sk_sp<SkImageFilter> createImageFilter() override; |
| |
| bool affectsTransparentPixels() const override; |
| |
| ColorMatrixType m_type; |
| |
| // The m_values vector may not contain the right number of values. Always |
| // check before accessing contents. |
| Vector<float> m_values; |
| }; |
| |
| } // namespace blink |
| |
| #endif // FEColorMatrix_h |