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diff --git a/libs/hwui/TextureCache.h b/libs/hwui/TextureCache.h
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+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HWUI_TEXTURE_CACHE_H
+#define ANDROID_HWUI_TEXTURE_CACHE_H
+
+#include <SkBitmap.h>
+
+#include <utils/Vector.h>
+
+#include "Debug.h"
+#include "Texture.h"
+#include "utils/GenerationCache.h"
+
+namespace android {
+namespace uirenderer {
+
+///////////////////////////////////////////////////////////////////////////////
+// Defines
+///////////////////////////////////////////////////////////////////////////////
+
+// Debug
+#if DEBUG_TEXTURES
+    #define TEXTURE_LOGD(...) LOGD(__VA_ARGS__)
+#else
+    #define TEXTURE_LOGD(...)
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Classes
+///////////////////////////////////////////////////////////////////////////////
+
+/**
+ * A simple LRU texture cache. The cache has a maximum size expressed in bytes.
+ * Any texture added to the cache causing the cache to grow beyond the maximum
+ * allowed size will also cause the oldest texture to be kicked out.
+ */
+class TextureCache: public OnEntryRemoved<SkBitmap*, Texture*> {
+public:
+    TextureCache();
+    TextureCache(uint32_t maxByteSize);
+    ~TextureCache();
+
+    /**
+     * Used as a callback when an entry is removed from the cache.
+     * Do not invoke directly.
+     */
+    void operator()(SkBitmap*& bitmap, Texture*& texture);
+
+    /**
+     * Returns the texture associated with the specified bitmap. If the texture
+     * cannot be found in the cache, a new texture is generated.
+     */
+    Texture* get(SkBitmap* bitmap);
+    /**
+     * Removes the texture associated with the specified bitmap.
+     * Upon remove the texture is freed.
+     */
+    void remove(SkBitmap* bitmap);
+    /**
+     * Removes the texture associated with the specified bitmap. This is meant
+     * to be called from threads that are not the EGL context thread.
+     */
+    void removeDeferred(SkBitmap* bitmap);
+    /**
+     * Process deferred removals.
+     */
+    void clearGarbage();
+
+    /**
+     * Clears the cache. This causes all textures to be deleted.
+     */
+    void clear();
+
+    /**
+     * Sets the maximum size of the cache in bytes.
+     */
+    void setMaxSize(uint32_t maxSize);
+    /**
+     * Returns the maximum size of the cache in bytes.
+     */
+    uint32_t getMaxSize();
+    /**
+     * Returns the current size of the cache in bytes.
+     */
+    uint32_t getSize();
+
+private:
+    /**
+     * Generates the texture from a bitmap into the specified texture structure.
+     *
+     * @param regenerate If true, the bitmap data is reuploaded into the texture, but
+     *        no new texture is generated.
+     */
+    void generateTexture(SkBitmap* bitmap, Texture* texture, bool regenerate = false);
+
+    void uploadLoFiTexture(bool resize, SkBitmap* bitmap, uint32_t width, uint32_t height);
+    void uploadToTexture(bool resize, GLenum format, GLsizei width, GLsizei height,
+            GLenum type, const GLvoid * data);
+
+    void init();
+
+    GenerationCache<SkBitmap*, Texture*> mCache;
+
+    uint32_t mSize;
+    uint32_t mMaxSize;
+    GLint mMaxTextureSize;
+
+    bool mDebugEnabled;
+
+    Vector<SkBitmap*> mGarbage;
+    mutable Mutex mLock;
+}; // class TextureCache
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_HWUI_TEXTURE_CACHE_H