| /* |
| * Copyright (C) 2009 Dirk Schulze <krit@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. |
| */ |
| |
| #pragma once |
| |
| #include "AffineTransform.h" |
| #include "FloatRect.h" |
| #include "GraphicsTypes.h" |
| #include "ImageBuffer.h" |
| #include <wtf/RefCounted.h> |
| |
| namespace WebCore { |
| |
| class FilterEffect; |
| |
| class Filter : public RefCounted<Filter> { |
| public: |
| Filter(const AffineTransform& absoluteTransform, float filterScale = 1) |
| : m_absoluteTransform(absoluteTransform) |
| , m_filterScale(filterScale) |
| { } |
| virtual ~Filter() = default; |
| |
| void setSourceImage(std::unique_ptr<ImageBuffer>&& sourceImage) { m_sourceImage = WTFMove(sourceImage); } |
| ImageBuffer* sourceImage() { return m_sourceImage.get(); } |
| |
| FloatSize filterResolution() const { return m_filterResolution; } |
| void setFilterResolution(const FloatSize& filterResolution) { m_filterResolution = filterResolution; } |
| |
| float filterScale() const { return m_filterScale; } |
| void setFilterScale(float scale) { m_filterScale = scale; } |
| |
| const AffineTransform& absoluteTransform() const { return m_absoluteTransform; } |
| |
| RenderingMode renderingMode() const { return m_renderingMode; } |
| void setRenderingMode(RenderingMode renderingMode) { m_renderingMode = renderingMode; } |
| |
| virtual bool isSVGFilter() const { return false; } |
| virtual bool isCSSFilter() const { return false; } |
| |
| virtual FloatSize scaledByFilterResolution(FloatSize size) const { return size * m_filterResolution; } |
| |
| virtual FloatRect sourceImageRect() const = 0; |
| virtual FloatRect filterRegion() const = 0; |
| virtual FloatRect filterRegionInUserSpace() const = 0; |
| |
| protected: |
| explicit Filter(const FloatSize& filterResolution) |
| : m_filterResolution(filterResolution) |
| { |
| } |
| |
| private: |
| std::unique_ptr<ImageBuffer> m_sourceImage; |
| FloatSize m_filterResolution; |
| AffineTransform m_absoluteTransform; |
| RenderingMode m_renderingMode { Unaccelerated }; |
| float m_filterScale { 1 }; |
| }; |
| |
| } // namespace WebCore |