cc/playback/float_clip_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/float_clip_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 #include "ui/gfx/skia_util.h"
  11
  12 namespace cc {
  13
  14 FloatClipDisplayItem::FloatClipDisplayItem() {
  15 }
  16
  17 FloatClipDisplayItem::~FloatClipDisplayItem() {
  18 }
  19
  20 void FloatClipDisplayItem::SetNew(const gfx::RectF& clip_rect) {
  21   clip_rect_ = clip_rect;
  22
  23   size_t memory_usage = sizeof(gfx::RectF);
  24   DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */,
  25                       memory_usage);
  26 }
  27
  28 void FloatClipDisplayItem::Raster(SkCanvas* canvas,
  29                                   const gfx::Rect& canvas_target_playback_rect,
  30                                   SkPicture::AbortCallback* callback) const {
  31   canvas->save();
  32   canvas->clipRect(gfx::RectFToSkRect(clip_rect_));
  33 }
  34
  35 void FloatClipDisplayItem::AsValueInto(
  36     base::trace_event::TracedValue* array) const {
  37   array->AppendString(base::StringPrintf("FloatClipDisplayItem rect: [%s]",
  38                                          clip_rect_.ToString().c_str()));
  39 }
  40
  41 EndFloatClipDisplayItem::EndFloatClipDisplayItem() {
  42   DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */,
  43                       0 /* memory_usage */);
  44 }
  45
  46 EndFloatClipDisplayItem::~EndFloatClipDisplayItem() {
  47 }
  48
  49 void EndFloatClipDisplayItem::Raster(
  50     SkCanvas* canvas,
  51     const gfx::Rect& canvas_target_playback_rect,
  52     SkPicture::AbortCallback* callback) const {
  53   canvas->restore();
  54 }
  55
  56 void EndFloatClipDisplayItem::AsValueInto(
  57     base::trace_event::TracedValue* array) const {
  58   array->AppendString("EndFloatClipDisplayItem");
  59 }
  60
  61 }  // namespace cc