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 rect_inside_picture)
  17   : tile_manager_(tile_manager),
  18     picture_pile_(picture_pile),
  19     tile_size_(tile_size),
  20     format_(format),
  21     rect_inside_picture_(rect_inside_picture) {
  22   tile_manager_->RegisterTile(this);
  23 }
  24
  25 Tile::~Tile() {
  26   tile_manager_->UnregisterTile(this);
  27 }
  28
  29 void Tile::set_priority(WhichTree tree, const TilePriority& priority) {
  30   tile_manager_->WillModifyTilePriority(this, tree, priority);
  31   priority_[tree] = priority;
  32 }
  33
  34 size_t Tile::bytes_consumed_if_allocated() const {
  35   DCHECK(format_ == GL_RGBA);
  36   return 4 * tile_size_.width() * tile_size_.height();
  37 }
  38
  39 }  // namespace cc