[cc] Rename all cc/ filenames to Chromium style

cc/layer_tiling_data.h

-// Copyright 2012 The Chromium Authors. All rights reserved.
+// 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.
+
+
+#ifndef CCLayerTilingData_h
+#define CCLayerTilingData_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "base/basictypes.h"
+#include "IntRect.h"
+#include "Region.h"
+#include "TilingData.h"
+#include <wtf/HashMap.h>
+#include <wtf/HashTraits.h>
+#include <wtf/PassOwnPtr.h>
+
+namespace cc {
+
+class CCLayerTilingData {
+public:
+    enum BorderTexelOption { HasBorderTexels, NoBorderTexels };
+
+    ~CCLayerTilingData();
+
+    static PassOwnPtr<CCLayerTilingData> create(const IntSize& tileSize, BorderTexelOption);
+
+    bool hasEmptyBounds() const { return m_tilingData.hasEmptyBounds(); }
+    int numTilesX() const { return m_tilingData.numTilesX(); }
+    int numTilesY() const { return m_tilingData.numTilesY(); }
+    IntRect tileBounds(int i, int j) const { return m_tilingData.tileBounds(i, j); }
+    IntPoint textureOffset(int xIndex, int yIndex) const { return m_tilingData.textureOffset(xIndex, yIndex); }
+
+    // Change the tile size. This may invalidate all the existing tiles.
+    void setTileSize(const IntSize&);
+    IntSize tileSize() const;
+    // Change the border texel setting. This may invalidate all existing tiles.
+    void setBorderTexelOption(BorderTexelOption);
+    bool hasBorderTexels() const { return m_tilingData.borderTexels(); }
+
+    bool isEmpty() const { return hasEmptyBounds() || !tiles().size(); }
+
+    const CCLayerTilingData& operator=(const CCLayerTilingData&);
+
+    class Tile {
+    public:
+        Tile() : m_i(-1), m_j(-1) { }
+        virtual ~Tile() { }
+
+        int i() const { return m_i; }
+        int j() const { return m_j; }
+        void moveTo(int i, int j) { m_i = i; m_j = j; }
+
+        const IntRect& opaqueRect() const { return m_opaqueRect; }
+        void setOpaqueRect(const IntRect& opaqueRect) { m_opaqueRect = opaqueRect; }
+    private:
+        int m_i;
+        int m_j;
+        IntRect m_opaqueRect;
+        DISALLOW_COPY_AND_ASSIGN(Tile);
+    };
+    // Default hash key traits for integers disallow 0 and -1 as a key, so
+    // use a custom hash trait which disallows -1 and -2 instead.
+    typedef std::pair<int, int> TileMapKey;
+    struct TileMapKeyTraits : HashTraits<TileMapKey> {
+        static const bool emptyValueIsZero = false;
+        static const bool needsDestruction = false;
+        static TileMapKey emptyValue() { return std::make_pair(-1, -1); }
+        static void constructDeletedValue(TileMapKey& slot) { slot = std::make_pair(-2, -2); }
+        static bool isDeletedValue(TileMapKey value) { return value.first == -2 && value.second == -2; }
+    };
+    typedef HashMap<TileMapKey, OwnPtr<Tile>, DefaultHash<TileMapKey>::Hash, TileMapKeyTraits> TileMap;
+
+    void addTile(PassOwnPtr<Tile>, int, int);
+    PassOwnPtr<Tile> takeTile(int, int);
+    Tile* tileAt(int, int) const;
+    const TileMap& tiles() const { return m_tiles; }
+
+    void setBounds(const IntSize&);
+    IntSize bounds() const;
+
+    void contentRectToTileIndices(const IntRect&, int &left, int &top, int &right, int &bottom) const;
+    IntRect tileRect(const Tile*) const;
+
+    Region opaqueRegionInContentRect(const IntRect&) const;
+
+    void reset();
+
+protected:
+    CCLayerTilingData(const IntSize& tileSize, BorderTexelOption);
+
+    TileMap m_tiles;
+    TilingData m_tilingData;
+};
+
+}
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif