Move cc::DisplayItemList and related classes into cc/paint/

cc/output/filter_operation.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CC_OUTPUT_FILTER_OPERATION_H_
-#define CC_OUTPUT_FILTER_OPERATION_H_
-
-#include <memory>
-
-#include "base/logging.h"
-#include "cc/base/cc_export.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkImageFilter.h"
-#include "third_party/skia/include/core/SkRegion.h"
-#include "third_party/skia/include/core/SkScalar.h"
-#include "ui/gfx/geometry/point.h"
-
-namespace base {
-namespace trace_event {
-class TracedValue;
-}
-}
-
-namespace gfx {
-class Rect;
-}
-
-namespace cc {
-
-class CC_EXPORT FilterOperation {
- public:
-  enum FilterType {
-    GRAYSCALE,
-    SEPIA,
-    SATURATE,
-    HUE_ROTATE,
-    INVERT,
-    BRIGHTNESS,
-    CONTRAST,
-    OPACITY,
-    BLUR,
-    DROP_SHADOW,
-    COLOR_MATRIX,
-    ZOOM,
-    REFERENCE,
-    SATURATING_BRIGHTNESS,  // Not used in CSS/SVG.
-    ALPHA_THRESHOLD,  // Not used in CSS/SVG.
-    FILTER_TYPE_LAST = ALPHA_THRESHOLD
-  };
-
-  FilterOperation();
-
-  FilterOperation(const FilterOperation& other);
-
-  ~FilterOperation();
-
-  FilterType type() const { return type_; }
-
-  float amount() const {
-    DCHECK_NE(type_, COLOR_MATRIX);
-    DCHECK_NE(type_, REFERENCE);
-    return amount_;
-  }
-
-  float outer_threshold() const {
-    DCHECK_EQ(type_, ALPHA_THRESHOLD);
-    return outer_threshold_;
-  }
-
-  gfx::Point drop_shadow_offset() const {
-    DCHECK_EQ(type_, DROP_SHADOW);
-    return drop_shadow_offset_;
-  }
-
-  SkColor drop_shadow_color() const {
-    DCHECK_EQ(type_, DROP_SHADOW);
-    return drop_shadow_color_;
-  }
-
-  const sk_sp<SkImageFilter>& image_filter() const {
-    DCHECK_EQ(type_, REFERENCE);
-    return image_filter_;
-  }
-
-  const SkScalar* matrix() const {
-    DCHECK_EQ(type_, COLOR_MATRIX);
-    return matrix_;
-  }
-
-  int zoom_inset() const {
-    DCHECK_EQ(type_, ZOOM);
-    return zoom_inset_;
-  }
-
-  const SkRegion& region() const {
-    DCHECK_EQ(type_, ALPHA_THRESHOLD);
-    return region_;
-  }
-
-  static FilterOperation CreateGrayscaleFilter(float amount) {
-    return FilterOperation(GRAYSCALE, amount);
-  }
-
-  static FilterOperation CreateSepiaFilter(float amount) {
-    return FilterOperation(SEPIA, amount);
-  }
-
-  static FilterOperation CreateSaturateFilter(float amount) {
-    return FilterOperation(SATURATE, amount);
-  }
-
-  static FilterOperation CreateHueRotateFilter(float amount) {
-    return FilterOperation(HUE_ROTATE, amount);
-  }
-
-  static FilterOperation CreateInvertFilter(float amount) {
-    return FilterOperation(INVERT, amount);
-  }
-
-  static FilterOperation CreateBrightnessFilter(float amount) {
-    return FilterOperation(BRIGHTNESS, amount);
-  }
-
-  static FilterOperation CreateContrastFilter(float amount) {
-    return FilterOperation(CONTRAST, amount);
-  }
-
-  static FilterOperation CreateOpacityFilter(float amount) {
-    return FilterOperation(OPACITY, amount);
-  }
-
-  static FilterOperation CreateBlurFilter(float amount) {
-    return FilterOperation(BLUR, amount);
-  }
-
-  static FilterOperation CreateDropShadowFilter(const gfx::Point& offset,
-                                                float std_deviation,
-                                                SkColor color) {
-    return FilterOperation(DROP_SHADOW, offset, std_deviation, color);
-  }
-
-  static FilterOperation CreateColorMatrixFilter(SkScalar matrix[20]) {
-    return FilterOperation(COLOR_MATRIX, matrix);
-  }
-
-  static FilterOperation CreateZoomFilter(float amount, int inset) {
-    return FilterOperation(ZOOM, amount, inset);
-  }
-
-  static FilterOperation CreateReferenceFilter(
-      sk_sp<SkImageFilter> image_filter) {
-    return FilterOperation(REFERENCE, std::move(image_filter));
-  }
-
-  static FilterOperation CreateSaturatingBrightnessFilter(float amount) {
-    return FilterOperation(SATURATING_BRIGHTNESS, amount);
-  }
-
-  static FilterOperation CreateAlphaThresholdFilter(const SkRegion& region,
-                                                    float inner_threshold,
-                                                    float outer_threshold) {
-    return FilterOperation(ALPHA_THRESHOLD, region,
-                           inner_threshold, outer_threshold);
-  }
-
-  bool operator==(const FilterOperation& other) const;
-
-  bool operator!=(const FilterOperation& other) const {
-    return !(*this == other);
-  }
-
-  // Methods for restoring a FilterOperation.
-  static FilterOperation CreateEmptyFilter() {
-    return FilterOperation(GRAYSCALE, 0.f);
-  }
-
-  void set_type(FilterType type) { type_ = type; }
-
-  void set_amount(float amount) {
-    DCHECK_NE(type_, COLOR_MATRIX);
-    DCHECK_NE(type_, REFERENCE);
-    amount_ = amount;
-  }
-
-  void set_outer_threshold(float outer_threshold) {
-    DCHECK_EQ(type_, ALPHA_THRESHOLD);
-    outer_threshold_ = outer_threshold;
-  }
-
-  void set_drop_shadow_offset(const gfx::Point& offset) {
-    DCHECK_EQ(type_, DROP_SHADOW);
-    drop_shadow_offset_ = offset;
-  }
-
-  void set_drop_shadow_color(SkColor color) {
-    DCHECK_EQ(type_, DROP_SHADOW);
-    drop_shadow_color_ = color;
-  }
-
-  void set_image_filter(sk_sp<SkImageFilter> image_filter) {
-    DCHECK_EQ(type_, REFERENCE);
-    image_filter_ = std::move(image_filter);
-  }
-
-  void set_matrix(const SkScalar matrix[20]) {
-    DCHECK_EQ(type_, COLOR_MATRIX);
-    for (unsigned i = 0; i < 20; ++i)
-      matrix_[i] = matrix[i];
-  }
-
-  void set_zoom_inset(int inset) {
-    DCHECK_EQ(type_, ZOOM);
-    zoom_inset_ = inset;
-  }
-
-  void set_region(const SkRegion& region) {
-    DCHECK_EQ(type_, ALPHA_THRESHOLD);
-    region_ = region;
-  }
-
-  // Given two filters of the same type, returns a filter operation created by
-  // linearly interpolating a |progress| fraction from |from| to |to|. If either
-  // |from| or |to| (but not both) is null, it is treated as a no-op filter of
-  // the same type as the other given filter. If both |from| and |to| are null,
-  // or if |from| and |to| are non-null but of different types, returns a
-  // no-op filter.
-  static FilterOperation Blend(const FilterOperation* from,
-                               const FilterOperation* to,
-                               double progress);
-
-  void AsValueInto(base::trace_event::TracedValue* value) const;
-
-  // Maps "forward" to determine which pixels in a destination rect are affected
-  // by pixels in the source rect.
-  gfx::Rect MapRect(const gfx::Rect& rect, const SkMatrix& matrix) const;
-
-  // Maps "backward" to determine which pixels in the source affect the pixels
-  // in the destination rect.
-  gfx::Rect MapRectReverse(const gfx::Rect& rect, const SkMatrix& matrix) const;
-
- private:
-  FilterOperation(FilterType type, float amount);
-
-  FilterOperation(FilterType type,
-                  const gfx::Point& offset,
-                  float stdDeviation,
-                  SkColor color);
-
-  FilterOperation(FilterType, SkScalar matrix[20]);
-
-  FilterOperation(FilterType type, float amount, int inset);
-
-  FilterOperation(FilterType type, sk_sp<SkImageFilter> image_filter);
-
-  FilterOperation(FilterType type,
-                  const SkRegion& region,
-                  float inner_threshold,
-                  float outer_threshold);
-
-  FilterType type_;
-  float amount_;
-  float outer_threshold_;
-  gfx::Point drop_shadow_offset_;
-  SkColor drop_shadow_color_;
-  sk_sp<SkImageFilter> image_filter_;
-  SkScalar matrix_[20];
-  int zoom_inset_;
-  SkRegion region_;
-};
-
-}  // namespace cc
-
-#endif  // CC_OUTPUT_FILTER_OPERATION_H_