chromium/third_party/blink/renderer/platform/graphics/filters/fe_gaussian_blur.cc

/*
 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <[email protected]>
 * Copyright (C) 2004, 2005 Rob Buis <[email protected]>
 * Copyright (C) 2005 Eric Seidel <[email protected]>
 * Copyright (C) 2009 Dirk Schulze <[email protected]>
 * Copyright (C) 2010 Igalia, S.L.
 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
 * 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.
 */

#include "third_party/blink/renderer/platform/graphics/filters/fe_gaussian_blur.h"

#include "base/types/optional_util.h"
#include "third_party/blink/renderer/platform/graphics/filters/filter.h"
#include "third_party/blink/renderer/platform/graphics/filters/paint_filter_builder.h"
#include "third_party/blink/renderer/platform/wtf/math_extras.h"
#include "third_party/blink/renderer/platform/wtf/text/text_stream.h"

namespace blink {

namespace {

inline unsigned ApproximateBoxWidth(float s) { … }

gfx::Size CalculateKernelSize(const gfx::SizeF& std) { … }
}

FEGaussianBlur::FEGaussianBlur(Filter* filter, float x, float y)
    : … { … }

gfx::RectF FEGaussianBlur::MapEffect(const gfx::SizeF& std_deviation,
                                     const gfx::RectF& rect) { … }

gfx::RectF FEGaussianBlur::MapEffect(const gfx::RectF& rect) const { … }

sk_sp<PaintFilter> FEGaussianBlur::CreateImageFilter() { … }

WTF::TextStream& FEGaussianBlur::ExternalRepresentation(WTF::TextStream& ts,
                                                        int indent) const { … }

}  // namespace blink