| /* |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * Copyright (C) 2021-2022 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 "FilterEffectVector.h" |
| #include "FilterFunction.h" |
| #include "FloatRect.h" |
| #include "GraphicsTypes.h" |
| #include "ImageBuffer.h" |
| #include "RenderingMode.h" |
| |
| namespace WebCore { |
| |
| class FilterEffect; |
| class FilterImage; |
| class FilterResults; |
| |
| class Filter : public FilterFunction { |
| using FilterFunction::apply; |
| |
| public: |
| enum class ClipOperation { Intersect, Unite }; |
| |
| RenderingMode renderingMode() const { return m_renderingMode; } |
| void setRenderingMode(RenderingMode renderingMode) { m_renderingMode = renderingMode; } |
| |
| FloatSize filterScale() const { return m_filterScale; } |
| void setFilterScale(const FloatSize& filterScale) { m_filterScale = filterScale; } |
| |
| FloatRect filterRegion() const { return m_filterRegion; } |
| void setFilterRegion(const FloatRect& filterRegion) { m_filterRegion = filterRegion; } |
| |
| ClipOperation clipOperation() const { return m_clipOperation; } |
| void setClipOperation(ClipOperation clipOperation) { m_clipOperation = clipOperation; } |
| |
| virtual FloatSize resolvedSize(const FloatSize& size) const { return size; } |
| |
| FloatPoint scaledByFilterScale(const FloatPoint&) const; |
| FloatSize scaledByFilterScale(const FloatSize&) const; |
| FloatRect scaledByFilterScale(const FloatRect&) const; |
| |
| FloatRect maxEffectRect(const FloatRect& primitiveSubregion) const; |
| FloatRect clipToMaxEffectRect(const FloatRect& imageRect, const FloatRect& primitiveSubregion) const; |
| |
| virtual FilterEffectVector effectsOfType(FilterFunction::Type) const = 0; |
| |
| bool clampFilterRegionIfNeeded(); |
| |
| virtual RefPtr<FilterImage> apply(FilterImage* sourceImage, FilterResults&) = 0; |
| WEBCORE_EXPORT RefPtr<FilterImage> apply(ImageBuffer* sourceImage, const FloatRect& sourceImageRect, FilterResults&); |
| |
| protected: |
| using FilterFunction::FilterFunction; |
| Filter(Filter::Type, RenderingMode, const FloatSize& filterScale, ClipOperation, const FloatRect& filterRegion = { }); |
| |
| private: |
| RenderingMode m_renderingMode; |
| FloatSize m_filterScale; |
| ClipOperation m_clipOperation; |
| FloatRect m_filterRegion; |
| }; |
| |
| } // namespace WebCore |
| |
| namespace WTF { |
| |
| template<> struct EnumTraits<WebCore::Filter::ClipOperation> { |
| using values = EnumValues< |
| WebCore::Filter::ClipOperation, |
| |
| WebCore::Filter::ClipOperation::Intersect, |
| WebCore::Filter::ClipOperation::Unite |
| >; |
| }; |
| |
| } // namespace WTF |