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/trace_event/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
  14 namespace cc {
  15
  16 Tile::Id Tile::s_next_id_ = 0;
  17
  18 Tile::Tile(TileManager* tile_manager,
  19            RasterSource* raster_source,
  20            const gfx::Size& desired_texture_size,
  21            const gfx::Rect& content_rect,
  22            float contents_scale,
  23            int layer_id,
  24            int source_frame_number,
  25            int flags)
  26     : RefCountedManaged<Tile>(tile_manager),
  27       desired_texture_size_(desired_texture_size),
  28       content_rect_(content_rect),
  29       contents_scale_(contents_scale),
  30       layer_id_(layer_id),
  31       source_frame_number_(source_frame_number),
  32       flags_(flags),
  33       tiling_i_index_(-1),
  34       tiling_j_index_(-1),
  35       is_shared_(false),
  36       required_for_activation_(false),
  37       required_for_draw_(false),
  38       id_(s_next_id_++),
  39       scheduled_priority_(0) {
  40   set_raster_source(raster_source);
  41   for (int i = 0; i <= LAST_TREE; 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::AsValueWithPriorityInto(const TilePriority& priority,
  52                                    base::trace_event::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   MathUtil::AddToTracedValue("content_rect", content_rect_, res);
  59
  60   res->SetInteger("layer_id", layer_id_);
  61
  62   // TODO(vmpstr): Remove active and pending priority once tracing is using
  63   // combined priority or at least can support both.
  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("combined_priority");
  73   priority.AsValueInto(res);
  74   res->EndDictionary();
  75
  76   res->BeginDictionary("draw_info");
  77   draw_info_.AsValueInto(res);
  78   res->EndDictionary();
  79
  80   res->SetBoolean("has_resource", HasResource());
  81   res->SetBoolean("is_using_gpu_memory", HasResource() || HasRasterTask());
  82   res->SetString("resolution",
  83                  TileResolutionToString(combined_priority().resolution));
  84
  85   res->SetInteger("scheduled_priority", scheduled_priority_);
  86
  87   res->SetBoolean("use_picture_analysis", use_picture_analysis());
  88
  89   res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
  90 }
  91
  92 size_t Tile::GPUMemoryUsageInBytes() const {
  93   if (draw_info_.resource_)
  94     return draw_info_.resource_->bytes();
  95   return 0;
  96 }
  97
  98 }  // namespace cc