chromium/cc/paint/render_surface_filters.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include <stddef.h>
#include <algorithm>
#include <utility>

#include "cc/paint/render_surface_filters.h"

#include "base/numerics/angle_conversions.h"
#include "cc/paint/filter_operation.h"
#include "cc/paint/filter_operations.h"
#include "cc/paint/paint_filter.h"
#include "third_party/skia/include/core/SkColorFilter.h"
#include "third_party/skia/include/core/SkRegion.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/skia_conversions.h"

namespace cc {

namespace {

void GetBrightnessMatrix(float amount, float matrix[20]) { … }

void GetSaturatingBrightnessMatrix(float amount, float matrix[20]) { … }

void GetContrastMatrix(float amount, float matrix[20]) { … }

void GetSaturateMatrix(float amount, float matrix[20]) { … }

void GetHueRotateMatrix(float hue, float matrix[20]) { … }

void GetInvertMatrix(float amount, float matrix[20]) { … }

void GetOpacityMatrix(float amount, float matrix[20]) { … }

void GetGrayscaleMatrix(float amount, float matrix[20]) { … }

void GetSepiaMatrix(float amount, float matrix[20]) { … }

sk_sp<PaintFilter> CreateMatrixImageFilter(const float matrix[20],
                                           sk_sp<PaintFilter> input) { … }

}  // namespace

sk_sp<PaintFilter> RenderSurfaceFilters::BuildImageFilter(
    const FilterOperations& filters,
    const gfx::Rect& layer_bounds) { … }

}  // namespace cc