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 #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& desired_texture_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       desired_texture_size_(desired_texture_size),
  29       content_rect_(content_rect),
  30       contents_scale_(contents_scale),
  31       layer_id_(layer_id),
  32       source_frame_number_(source_frame_number),
  33       flags_(flags),
  34       tiling_i_index_(-1),
  35       tiling_j_index_(-1),
  36       is_shared_(false),
  37       required_for_activation_(false),
  38       required_for_draw_(false),
  39       id_(s_next_id_++),
  40       scheduled_priority_(0) {
  41   set_raster_source(raster_source);
  42   for (int i = 0; i <= LAST_TREE; 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::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   res->BeginDictionary("active_priority");
  63   priority_[ACTIVE_TREE].AsValueInto(res);
  64   res->EndDictionary();
  65
  66   res->BeginDictionary("pending_priority");
  67   priority_[PENDING_TREE].AsValueInto(res);
  68   res->EndDictionary();
  69
  70   res->BeginDictionary("draw_info");
  71   draw_info_.AsValueInto(res);
  72   res->EndDictionary();
  73
  74   res->SetBoolean("has_resource", HasResource());
  75   res->SetBoolean("is_using_gpu_memory", HasResource() || HasRasterTask());
  76   res->SetString("resolution",
  77                  TileResolutionToString(combined_priority().resolution));
  78
  79   res->SetInteger("scheduled_priority", scheduled_priority_);
  80
  81   res->SetBoolean("use_picture_analysis", use_picture_analysis());
  82
  83   res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
  84 }
  85
  86 size_t Tile::GPUMemoryUsageInBytes() const {
  87   if (draw_info_.resource_)
  88     return draw_info_.resource_->bytes();
  89   return 0;
  90 }
  91
  92 }  // namespace cc