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(gfx::RectF clip_rect)
  15     : clip_rect_(clip_rect) {
  16 }
  17
  18 FloatClipDisplayItem::~FloatClipDisplayItem() {
  19 }
  20
  21 void FloatClipDisplayItem::Raster(SkCanvas* canvas,
  22                                   SkDrawPictureCallback* callback) const {
  23   canvas->save();
  24   canvas->clipRect(gfx::RectFToSkRect(clip_rect_));
  25 }
  26
  27 bool FloatClipDisplayItem::IsSuitableForGpuRasterization() const {
  28   return true;
  29 }
  30
  31 int FloatClipDisplayItem::ApproximateOpCount() const {
  32   return 1;
  33 }
  34
  35 size_t FloatClipDisplayItem::PictureMemoryUsage() const {
  36   return sizeof(gfx::RectF);
  37 }
  38
  39 void FloatClipDisplayItem::AsValueInto(
  40     base::trace_event::TracedValue* array) const {
  41   array->AppendString(base::StringPrintf("FloatClipDisplayItem rect: [%s]",
  42                                          clip_rect_.ToString().c_str()));
  43 }
  44
  45 EndFloatClipDisplayItem::EndFloatClipDisplayItem() {
  46 }
  47
  48 EndFloatClipDisplayItem::~EndFloatClipDisplayItem() {
  49 }
  50
  51 void EndFloatClipDisplayItem::Raster(SkCanvas* canvas,
  52                                      SkDrawPictureCallback* callback) const {
  53   canvas->restore();
  54 }
  55
  56 bool EndFloatClipDisplayItem::IsSuitableForGpuRasterization() const {
  57   return true;
  58 }
  59
  60 int EndFloatClipDisplayItem::ApproximateOpCount() const {
  61   return 0;
  62 }
  63
  64 size_t EndFloatClipDisplayItem::PictureMemoryUsage() const {
  65   return 0;
  66 }
  67
  68 void EndFloatClipDisplayItem::AsValueInto(
  69     base::trace_event::TracedValue* array) const {
  70   array->AppendString("EndFloatClipDisplayItem");
  71 }
  72
  73 }  // namespace cc