cc/playback/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/playback/clip_path_display_item.h"
   6
   7 #include "base/strings/stringprintf.h"
   8 #include "base/trace_event/trace_event_argument.h"
   9 #include "third_party/skia/include/core/SkCanvas.h"
  10
  11 namespace cc {
  12
  13 ClipPathDisplayItem::ClipPathDisplayItem() {
  14 }
  15
  16 ClipPathDisplayItem::~ClipPathDisplayItem() {
  17 }
  18
  19 void ClipPathDisplayItem::SetNew(const SkPath& clip_path,
  20                                  SkRegion::Op clip_op,
  21                                  bool antialias) {
  22   clip_path_ = clip_path;
  23   clip_op_ = clip_op;
  24   antialias_ = antialias;
  25
  26   size_t memory_usage = sizeof(SkPath) + sizeof(SkRegion::Op) + sizeof(bool);
  27   DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */,
  28                       memory_usage);
  29 }
  30
  31 void ClipPathDisplayItem::Raster(SkCanvas* canvas,
  32                                  const gfx::Rect& canvas_target_playback_rect,
  33                                  SkPicture::AbortCallback* callback) const {
  34   canvas->save();
  35   canvas->clipPath(clip_path_, clip_op_, antialias_);
  36 }
  37
  38 void ClipPathDisplayItem::AsValueInto(
  39     base::trace_event::TracedValue* array) const {
  40   array->AppendString(base::StringPrintf("ClipPathDisplayItem length: %d",
  41                                          clip_path_.countPoints()));
  42 }
  43
  44 EndClipPathDisplayItem::EndClipPathDisplayItem() {
  45   DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */,
  46                       0 /* memory_usage */);
  47 }
  48
  49 EndClipPathDisplayItem::~EndClipPathDisplayItem() {
  50 }
  51
  52 void EndClipPathDisplayItem::Raster(
  53     SkCanvas* canvas,
  54     const gfx::Rect& canvas_target_playback_rect,
  55     SkPicture::AbortCallback* callback) const {
  56   canvas->restore();
  57 }
  58
  59 void EndClipPathDisplayItem::AsValueInto(
  60     base::trace_event::TracedValue* array) const {
  61   array->AppendString("EndClipPathDisplayItem");
  62 }
  63
  64 }  // namespace cc