cc/resources/clip_path_display_item.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/resources/clip_path_display_item.h"
   6
   7 #include "third_party/skia/include/core/SkCanvas.h"
   8
   9 namespace cc {
  10
  11 ClipPathDisplayItem::ClipPathDisplayItem(const SkPath& clip_path,
  12                                          SkRegion::Op clip_op,
  13                                          bool antialias)
  14     : clip_path_(clip_path), clip_op_(clip_op), antialias_(antialias) {
  15 }
  16
  17 ClipPathDisplayItem::~ClipPathDisplayItem() {
  18 }
  19
  20 void ClipPathDisplayItem::Raster(SkCanvas* canvas,
  21                                  SkDrawPictureCallback* callback) const {
  22   canvas->save();
  23   canvas->clipPath(clip_path_, clip_op_, antialias_);
  24 }
  25
  26 bool ClipPathDisplayItem::IsSuitableForGpuRasterization() const {
  27   return true;
  28 }
  29
  30 int ClipPathDisplayItem::ApproximateOpCount() const {
  31   return 1;
  32 }
  33
  34 size_t ClipPathDisplayItem::PictureMemoryUsage() const {
  35   size_t total_size = sizeof(SkPath) + sizeof(SkRegion::Op) + sizeof(bool);
  36   return total_size;
  37 }
  38
  39 EndClipPathDisplayItem::EndClipPathDisplayItem() {
  40 }
  41
  42 EndClipPathDisplayItem::~EndClipPathDisplayItem() {
  43 }
  44
  45 void EndClipPathDisplayItem::Raster(SkCanvas* canvas,
  46                                     SkDrawPictureCallback* callback) const {
  47   canvas->restore();
  48 }
  49
  50 bool EndClipPathDisplayItem::IsSuitableForGpuRasterization() const {
  51   return true;
  52 }
  53
  54 int EndClipPathDisplayItem::ApproximateOpCount() const {
  55   return 0;
  56 }
  57
  58 size_t EndClipPathDisplayItem::PictureMemoryUsage() const {
  59   return 0;
  60 }
  61
  62 }  // namespace cc