chromium/third_party/blink/renderer/core/paint/filter_effect_builder.cc

/*
 * Copyright (C) 2011 Apple Inc. All rights reserved.
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "third_party/blink/renderer/core/paint/filter_effect_builder.h"

#include <algorithm>
#include "third_party/blink/renderer/core/layout/svg/layout_svg_resource_container.h"
#include "third_party/blink/renderer/core/style/filter_operations.h"
#include "third_party/blink/renderer/core/svg/graphics/filters/svg_filter_builder.h"
#include "third_party/blink/renderer/core/svg/svg_animated_length.h"
#include "third_party/blink/renderer/core/svg/svg_filter_element.h"
#include "third_party/blink/renderer/core/svg/svg_resource.h"
#include "third_party/blink/renderer/platform/geometry/length_functions.h"
#include "third_party/blink/renderer/platform/graphics/compositor_filter_operations.h"
#include "third_party/blink/renderer/platform/graphics/filters/fe_box_reflect.h"
#include "third_party/blink/renderer/platform/graphics/filters/fe_color_matrix.h"
#include "third_party/blink/renderer/platform/graphics/filters/fe_component_transfer.h"
#include "third_party/blink/renderer/platform/graphics/filters/fe_drop_shadow.h"
#include "third_party/blink/renderer/platform/graphics/filters/fe_gaussian_blur.h"
#include "third_party/blink/renderer/platform/graphics/filters/filter.h"
#include "third_party/blink/renderer/platform/graphics/filters/filter_effect.h"
#include "third_party/blink/renderer/platform/graphics/filters/paint_filter_builder.h"
#include "third_party/blink/renderer/platform/graphics/filters/source_graphic.h"
#include "third_party/blink/renderer/platform/graphics/interpolation_space.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/wtf/math_extras.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/vector2d_conversions.h"

namespace blink {

namespace {

inline void EndMatrixRow(Vector<float>& matrix) { … }

inline void LastMatrixRow(Vector<float>& matrix) { … }

Vector<float> GrayscaleMatrix(double amount) { … }

Vector<float> SepiaMatrix(double amount) { … }

}  // namespace

FilterEffectBuilder::FilterEffectBuilder(const gfx::RectF& reference_box,
                                         std::optional<gfx::SizeF> viewport,
                                         float zoom,
                                         Color current_color,
                                         mojom::blink::ColorScheme color_scheme,
                                         const cc::PaintFlags* fill_flags,
                                         const cc::PaintFlags* stroke_flags)
    : … { … }

FilterEffect* FilterEffectBuilder::BuildFilterEffect(
    const FilterOperations& operations,
    bool input_tainted) const { … }

CompositorFilterOperations FilterEffectBuilder::BuildFilterOperations(
    const FilterOperations& operations) const { … }

Filter* FilterEffectBuilder::BuildReferenceFilter(
    const ReferenceFilterOperation& reference_operation,
    FilterEffect* previous_effect,
    SVGFilterGraphNodeMap* node_map) const { … }

}  // namespace blink