cc/tiles/tile.cc

   1 // Copyright 2012 The Chromium Authors
   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/tiles/tile.h"
   6
   7 #include <stddef.h>
   8
   9 #include <algorithm>
  10 #include <utility>
  11
  12 #include "base/numerics/safe_conversions.h"
  13 #include "base/trace_event/trace_event.h"
  14 #include "base/trace_event/traced_value.h"
  15 #include "cc/base/math_util.h"
  16 #include "cc/tiles/tile_manager.h"
  17 #include "components/viz/common/resources/resource_sizes.h"
  18 #include "components/viz/common/traced_value.h"
  19
  20 namespace cc {
  21
  22 Tile::Tile(TileManager* tile_manager,
  23            const CreateInfo& info,
  24            int layer_id,
  25            int source_frame_number,
  26            int flags)
  27     : tile_manager_(tile_manager),
  28       tiling_(info.tiling.get()),
  29       content_rect_(info.content_rect),
  30       enclosing_layer_rect_(info.enclosing_layer_rect),
  31       raster_transform_(info.raster_transform),
  32       layer_id_(layer_id),
  33       source_frame_number_(source_frame_number),
  34       flags_(flags),
  35       tiling_i_index_(info.tiling_i_index),
  36       tiling_j_index_(info.tiling_j_index),
  37       required_for_activation_(false),
  38       required_for_draw_(false),
  39       is_solid_color_analysis_performed_(false),
  40       can_use_lcd_text_(info.can_use_lcd_text),
  41       raster_task_scheduled_with_checker_images_(false),
  42       id_(tile_manager->GetUniqueTileId()) {
  43   raster_rects_.emplace_back(info.content_rect, info.raster_transform);
  44 }
  45
  46 Tile::~Tile() {
  47   TRACE_EVENT_OBJECT_DELETED_WITH_ID(
  48       TRACE_DISABLED_BY_DEFAULT("cc.debug"),
  49       "cc::Tile", this);
  50   tile_manager_->Release(this);
  51 }
  52
  53 void Tile::AsValueInto(base::trace_event::TracedValue* value) const {
  54   viz::TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
  55       TRACE_DISABLED_BY_DEFAULT("cc.debug"), value, "cc::Tile", this);
  56   value->SetDouble("contents_scale", contents_scale_key());
  57
  58   value->BeginDictionary("raster_transform");
  59   value->BeginArray("scale");
  60   value->AppendDouble(raster_transform_.scale().x());
  61   value->AppendDouble(raster_transform_.scale().y());
  62   value->EndArray();
  63   value->BeginArray("translation");
  64   value->AppendDouble(raster_transform_.translation().x());
  65   value->AppendDouble(raster_transform_.translation().y());
  66   value->EndArray();
  67   value->EndDictionary();
  68
  69   MathUtil::AddToTracedValue("content_rect", content_rect_, value);
  70
  71   value->SetInteger("layer_id", layer_id_);
  72
  73   value->BeginDictionary("draw_info");
  74   draw_info_.AsValueInto(value);
  75   value->EndDictionary();
  76
  77   value->SetBoolean("has_resource", draw_info().has_resource());
  78   value->SetBoolean("is_using_gpu_memory",
  79                     draw_info().has_resource() || HasRasterTask());
  80   value->SetInteger("scheduled_priority", scheduled_priority_);
  81   value->SetBoolean("use_picture_analysis", use_picture_analysis());
  82   value->SetInteger("gpu_memory_usage",
  83                     base::saturated_cast<int>(GPUMemoryUsageInBytes()));
  84 }
  85
  86 bool Tile::HasMissingLCPCandidateImages() const {
  87   return HasRasterTask() && raster_task_->TaskContainsLCPCandidateImages();
  88 }
  89
  90 size_t Tile::GPUMemoryUsageInBytes() const {
  91   if (draw_info_.resource_) {
  92     // We can use UncheckedSizeInBytes, since the tile size is determined by the
  93     // compositor.
  94     return viz::ResourceSizes::UncheckedSizeInBytes<size_t>(
  95         draw_info_.resource_size(), draw_info_.resource_format());
  96   }
  97   return 0;
  98 }
  99
 100 }  // namespace cc