Remove the remainder of the skia source code from the Chromium repo....

skia/gl/SkTextureCache.h

-#ifndef SkTextureCache_DEFINED
-#define SkTextureCache_DEFINED
-
-#include "SkBitmap.h"
-#include "SkPoint.h"
-#include "SkGL.h"
-#include "SkTDArray.h"
-
-class SkTextureCache {
-public:
-    SkTextureCache(size_t maxCount, size_t maxSize);
-    ~SkTextureCache();
-    
-    size_t getMaxCount() { return fTexCountMax; }
-    size_t getMaxSize() { return fTexSizeMax; }
-
-    void setMaxCount(size_t count);
-    void setMaxSize(size_t size);
-    
-    /** Deletes all the caches. Pass true if the texture IDs are still valid,
-        and if so, it will call glDeleteTextures. Pass false if the texture IDs
-        are invalid (e.g. the gl-context has changed), in which case they will
-        just be abandoned.
-    */
-    void deleteAllCaches(bool texturesAreValid);
-    
-    static int HashMask() { return kHashMask; }
-    
-    class Key {
-    public:
-        Key(const SkBitmap& bm) {
-            fGenID = bm.getGenerationID();
-            fOffset = bm.pixelRefOffset();
-            fWH = (bm.width() << 16) | bm.height();
-            this->computeHash();
-        }
-        
-        int getHashIndex() const { return fHashIndex; }
-        
-        friend bool operator==(const Key& a, const Key& b) {
-            return  a.fHash ==   b.fHash &&
-                    a.fGenID ==  b.fGenID &&
-                    a.fOffset == b.fOffset &&
-                    a.fWH ==     b.fWH;
-        }
-        
-        friend bool operator<(const Key& a, const Key& b) {
-            if (a.fHash < b.fHash) {
-                return true;
-            } else if (a.fHash > b.fHash) {
-                return false;
-            }
-            
-            if (a.fGenID < b.fGenID) {
-                return true;
-            } else if (a.fGenID > b.fGenID) {
-                return false;
-            }
-            
-            if (a.fOffset < b.fOffset) {
-                return true;
-            } else if (a.fOffset > b.fOffset) {
-                return false;
-            }
-            
-            return a.fWH < b.fWH;
-        }
-        
-    private:
-        void computeHash() {
-            uint32_t hash = fGenID ^ fOffset ^ fWH;
-            fHash = hash;
-            hash ^= hash >> 16;
-            fHashIndex = hash & SkTextureCache::HashMask();
-        }
-        
-        uint32_t    fHash;  // computed from the other fields
-        uint32_t    fGenID;
-        size_t      fOffset;
-        uint32_t    fWH;
-        // for indexing into the texturecache's fHash
-        int fHashIndex;
-    };
-
-    class Entry {
-    public:
-        GLuint name() const { return fName; }
-        SkPoint texSize() const { return fTexSize; }
-        size_t memSize() const { return fMemSize; }
-        const Key& getKey() const { return fKey; }
-
-        // call this to clear the texture name, in case the context has changed
-        // in which case we should't reference or delete this texture in GL
-        void abandonTexture() { fName = 0; }
-
-    private:
-        Entry(const SkBitmap& bitmap);
-        ~Entry();
-
-        int lockCount() const { return fLockCount; }
-        bool isLocked() const { return fLockCount > 0; }
-
-        void lock() { fLockCount += 1; }
-        void unlock() {
-            SkASSERT(fLockCount > 0);
-            fLockCount -= 1;
-        }
-
-    private:
-        GLuint  fName;
-        SkPoint fTexSize;
-        Key     fKey;
-        size_t  fMemSize;
-        int     fLockCount;
-        
-        Entry*  fPrev;
-        Entry*  fNext;
-        
-        friend class SkTextureCache;
-    };
-    
-    Entry* lock(const SkBitmap&);
-    void unlock(Entry*);
-    
-private:
-    void purgeIfNecessary(size_t extraSize);
-    
-#ifdef SK_DEBUG
-    void validate() const;
-#else
-    void validate() const {}
-#endif
-
-    Entry* fHead;
-    Entry* fTail;
-    
-    // limits for the cache
-    size_t  fTexCountMax;
-    size_t  fTexSizeMax;
-    
-    // current values for the cache
-    size_t  fTexCount;
-    size_t  fTexSize;
-    
-    enum {
-        kHashBits = 6,
-        kHashCount = 1 << kHashBits,
-        kHashMask = kHashCount - 1
-    };
-    mutable Entry* fHash[kHashCount];
-    SkTDArray<Entry*> fSorted;
-    
-    /*  If we find the key, return the entry and ignore index. If we don't,
-        return NULL and set index to the place to insert the entry in fSorted
-    */
-    Entry* find(const Key&, int* index) const;
-    // returns index or <0 if not found. Does NOT update hash
-    int findInSorted(const Key& key) const;
-};
-
-#endif