cc/resources/tile.cc

   1 // Copyright 2012 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/tile.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/debug/trace_event_argument.h"
  10 #include "cc/base/math_util.h"
  11 #include "cc/debug/traced_value.h"
  12 #include "cc/resources/tile_manager.h"
  13 #include "third_party/khronos/GLES2/gl2.h"
  14
  15 namespace cc {
  16
  17 Tile::Id Tile::s_next_id_ = 0;
  18
  19 Tile::Tile(TileManager* tile_manager,
  20            RasterSource* raster_source,
  21            const gfx::Size& tile_size,
  22            const gfx::Rect& content_rect,
  23            float contents_scale,
  24            int layer_id,
  25            int source_frame_number,
  26            int flags)
  27     : RefCountedManaged<Tile>(tile_manager),
  28       tile_manager_(tile_manager),
  29       size_(tile_size),
  30       content_rect_(content_rect),
  31       contents_scale_(contents_scale),
  32       layer_id_(layer_id),
  33       source_frame_number_(source_frame_number),
  34       flags_(flags),
  35       is_shared_(false),
  36       tiling_i_index_(-1),
  37       tiling_j_index_(-1),
  38       required_for_activation_(false),
  39       required_for_draw_(false),
  40       id_(s_next_id_++) {
  41   set_raster_source(raster_source);
  42   for (int i = 0; i < NUM_TREES; i++)
  43     is_occluded_[i] = false;
  44 }
  45
  46 Tile::~Tile() {
  47   TRACE_EVENT_OBJECT_DELETED_WITH_ID(
  48       TRACE_DISABLED_BY_DEFAULT("cc.debug"),
  49       "cc::Tile", this);
  50 }
  51
  52 void Tile::AsValueInto(base::debug::TracedValue* res) const {
  53   TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
  54       TRACE_DISABLED_BY_DEFAULT("cc.debug"), res, "cc::Tile", this);
  55   TracedValue::SetIDRef(raster_source_.get(), res, "picture_pile");
  56   res->SetDouble("contents_scale", contents_scale_);
  57
  58   res->BeginArray("content_rect");
  59   MathUtil::AddToTracedValue(content_rect_, res);
  60   res->EndArray();
  61
  62   res->SetInteger("layer_id", layer_id_);
  63
  64   res->BeginDictionary("active_priority");
  65   priority_[ACTIVE_TREE].AsValueInto(res);
  66   res->EndDictionary();
  67
  68   res->BeginDictionary("pending_priority");
  69   priority_[PENDING_TREE].AsValueInto(res);
  70   res->EndDictionary();
  71
  72   res->BeginDictionary("managed_state");
  73   managed_state_.AsValueInto(res);
  74   res->EndDictionary();
  75
  76   res->SetBoolean("use_picture_analysis", use_picture_analysis());
  77
  78   res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
  79 }
  80
  81 size_t Tile::GPUMemoryUsageInBytes() const {
  82   if (managed_state_.draw_info.resource_)
  83     return managed_state_.draw_info.resource_->bytes();
  84   return 0;
  85 }
  86
  87 bool Tile::HasRasterTask() const {
  88   return !!managed_state_.raster_task.get();
  89 }
  90
  91 }  // namespace cc