cc/resources/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/resources/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                                   SkDrawPictureCallback* callback) const {
  30   canvas->save();
  31   canvas->clipRect(gfx::RectFToSkRect(clip_rect_));
  32 }
  33
  34 void FloatClipDisplayItem::AsValueInto(
  35     base::trace_event::TracedValue* array) const {
  36   array->AppendString(base::StringPrintf("FloatClipDisplayItem rect: [%s]",
  37                                          clip_rect_.ToString().c_str()));
  38 }
  39
  40 EndFloatClipDisplayItem::EndFloatClipDisplayItem() {
  41   DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */,
  42                       0 /* memory_usage */);
  43 }
  44
  45 EndFloatClipDisplayItem::~EndFloatClipDisplayItem() {
  46 }
  47
  48 void EndFloatClipDisplayItem::Raster(SkCanvas* canvas,
  49                                      SkDrawPictureCallback* callback) const {
  50   canvas->restore();
  51 }
  52
  53 void EndFloatClipDisplayItem::AsValueInto(
  54     base::trace_event::TracedValue* array) const {
  55   array->AppendString("EndFloatClipDisplayItem");
  56 }
  57
  58 }  // namespace cc