blob: 5e944a569bf2ab7d2617df7322c015be9f593085 [file] [log] [blame]
// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <utility>
#include "base/basictypes.h"
#include "base/containers/hash_tables.h"
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
#include "cc/base/simple_enclosed_region.h"
#include "cc/base/tiling_data.h"
#include "ui/gfx/geometry/rect.h"
namespace cc {
class CC_EXPORT LayerTilingData {
enum BorderTexelOption {
static scoped_ptr<LayerTilingData> Create(const gfx::Size& tile_size,
BorderTexelOption option);
bool has_empty_bounds() const { return tiling_data_.has_empty_bounds(); }
int num_tiles_x() const { return tiling_data_.num_tiles_x(); }
int num_tiles_y() const { return tiling_data_.num_tiles_y(); }
gfx::Rect tile_bounds(int i, int j) const {
return tiling_data_.TileBounds(i, j);
gfx::Vector2d texture_offset(int x_index, int y_index) const {
return tiling_data_.TextureOffset(x_index, y_index);
// Change the tile size. This may invalidate all the existing tiles.
void SetTileSize(const gfx::Size& size);
gfx::Size tile_size() const;
// Change the border texel setting. This may invalidate all existing tiles.
void SetBorderTexelOption(BorderTexelOption option);
bool has_border_texels() const { return !!tiling_data_.border_texels(); }
bool is_empty() const { return has_empty_bounds() || !tiles().size(); }
const LayerTilingData& operator=(const LayerTilingData&);
class Tile {
Tile() : i_(-1), j_(-1) {}
virtual ~Tile() {}
int i() const { return i_; }
int j() const { return j_; }
void move_to(int i, int j) {
i_ = i;
j_ = j;
int i_;
int j_;
typedef std::pair<int, int> TileMapKey;
typedef base::ScopedPtrHashMap<TileMapKey, scoped_ptr<Tile>> TileMap;
void AddTile(scoped_ptr<Tile> tile, int i, int j);
scoped_ptr<Tile> TakeTile(int i, int j);
Tile* TileAt(int i, int j) const;
const TileMap& tiles() const { return tiles_; }
void SetTilingSize(const gfx::Size& tiling_size);
gfx::Size tiling_size() const { return tiling_data_.tiling_size(); }
void ContentRectToTileIndices(const gfx::Rect& rect,
int* left,
int* top,
int* right,
int* bottom) const;
gfx::Rect TileRect(const Tile* tile) const;
void reset() { tiles_.clear(); }
LayerTilingData(const gfx::Size& tile_size, BorderTexelOption option);
TileMap tiles_;
TilingData tiling_data_;
} // namespace cc