cc/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/tile.h"
   6
   7 #include "cc/tile_manager.h"
   8 #include "third_party/khronos/GLES2/gl2.h"
   9
  10 namespace cc {
  11
  12 Tile::Tile(TileManager* tile_manager,
  13            PicturePileImpl* picture_pile,
  14            gfx::Size tile_size,
  15            GLenum format,
  16            gfx::Rect content_rect,
  17            float contents_scale)
  18   : tile_manager_(tile_manager),
  19     picture_pile_(picture_pile),
  20     tile_size_(tile_size),
  21     format_(format),
  22     content_rect_(content_rect),
  23     contents_scale_(contents_scale) {
  24   tile_manager_->RegisterTile(this);
  25 }
  26
  27 Tile::~Tile() {
  28   tile_manager_->UnregisterTile(this);
  29 }
  30
  31 void Tile::set_priority(WhichTree tree, const TilePriority& priority) {
  32   tile_manager_->WillModifyTilePriority(this, tree, priority);
  33   priority_[tree] = priority;
  34 }
  35
  36 ResourceProvider::ResourceId Tile::GetResourceId() const {
  37   if (!managed_state_.resource)
  38     return 0;
  39   if (managed_state_.resource_is_being_initialized)
  40     return 0;
  41
  42   return managed_state_.resource->id();
  43 }
  44
  45 size_t Tile::bytes_consumed_if_allocated() const {
  46   DCHECK(format_ == GL_RGBA);
  47   return 4 * tile_size_.width() * tile_size_.height();
  48 }
  49
  50 }  // namespace cc