src/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       id_(s_next_id_++) {
  40   set_raster_source(raster_source);
  41   for (int i = 0; i < NUM_TREES; i++)
  42     is_occluded_[i] = false;
  43 }
  44
  45 Tile::~Tile() {
  46   TRACE_EVENT_OBJECT_DELETED_WITH_ID(
  47       TRACE_DISABLED_BY_DEFAULT("cc.debug"),
  48       "cc::Tile", this);
  49 }
  50
  51 void Tile::AsValueInto(base::debug::TracedValue* res) const {
  52   TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
  53       TRACE_DISABLED_BY_DEFAULT("cc.debug"), res, "cc::Tile", this);
  54   TracedValue::SetIDRef(raster_source_.get(), res, "picture_pile");
  55   res->SetDouble("contents_scale", contents_scale_);
  56
  57   res->BeginArray("content_rect");
  58   MathUtil::AddToTracedValue(content_rect_, res);
  59   res->EndArray();
  60
  61   res->SetInteger("layer_id", layer_id_);
  62
  63   res->BeginDictionary("active_priority");
  64   priority_[ACTIVE_TREE].AsValueInto(res);
  65   res->EndDictionary();
  66
  67   res->BeginDictionary("pending_priority");
  68   priority_[PENDING_TREE].AsValueInto(res);
  69   res->EndDictionary();
  70
  71   res->BeginDictionary("managed_state");
  72   managed_state_.AsValueInto(res);
  73   res->EndDictionary();
  74
  75   res->SetBoolean("use_picture_analysis", use_picture_analysis());
  76
  77   res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
  78 }
  79
  80 size_t Tile::GPUMemoryUsageInBytes() const {
  81   if (managed_state_.draw_info.resource_)
  82     return managed_state_.draw_info.resource_->bytes();
  83   return 0;
  84 }
  85
  86 bool Tile::HasRasterTask() const {
  87   return !!managed_state_.raster_task.get();
  88 }
  89
  90 }  // namespace cc