2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
3 * Copyright (C) 2013 Google Inc. All rights reserved.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
24 #include "platform/graphics/filters/Filter.h"
25 #include "platform/graphics/filters/FilterEffect.h"
29 class PLATFORM_EXPORT SourceAlpha : public FilterEffect {
31 static PassRefPtr<SourceAlpha> create(Filter*);
33 static const AtomicString& effectName();
35 virtual FloatRect determineAbsolutePaintRect(const FloatRect& requestedRect) OVERRIDE;
37 virtual FilterEffectType filterEffectType() const OVERRIDE { return FilterEffectTypeSourceInput; }
39 virtual TextStream& externalRepresentation(TextStream&, int indention) const OVERRIDE;
40 virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE;
43 SourceAlpha(Filter* filter)
44 : FilterEffect(filter)
48 virtual void applySoftware() OVERRIDE;
53 #endif // SourceAlpha_h