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

skia/gl/SkTextureCache.cpp

Index: skia/gl/SkTextureCache.cpp
===================================================================
--- skia/gl/SkTextureCache.cpp	(revision 16859)
+++ skia/gl/SkTextureCache.cpp	(working copy)
@@ -1,363 +0,0 @@
-#include "SkTextureCache.h"
-
-//#define TRACE_HASH_HITS
-//#define TRACE_TEXTURE_CACHE_PURGE
-
-SkTextureCache::Entry::Entry(const SkBitmap& bitmap)
-        : fName(0), fKey(bitmap), fPrev(NULL), fNext(NULL) {
-
-    fMemSize = SkGL::ComputeTextureMemorySize(bitmap);
-    fLockCount = 0;
-}
-
-SkTextureCache::Entry::~Entry() {
-    if (fName != 0) {
-        glDeleteTextures(1, &fName);
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-SkTextureCache::SkTextureCache(size_t countMax, size_t sizeMax)
-        : fHead(NULL), fTail(NULL),
-          fTexCountMax(countMax), fTexSizeMax(sizeMax),
-          fTexCount(0), fTexSize(0) {
-
-    bzero(fHash, sizeof(fHash));
-    this->validate();
-}
-
-SkTextureCache::~SkTextureCache() {
-#ifdef SK_DEBUG
-    Entry* entry = fHead;
-    while (entry) {
-        SkASSERT(entry->lockCount() == 0);
-        entry = entry->fNext;
-    }
-#endif
-    this->validate();
-}
-
-void SkTextureCache::deleteAllCaches(bool texturesAreValid) {
-    this->validate();
-    
-    Entry* entry = fHead;
-    while (entry) {
-        Entry* next = entry->fNext;
-        if (!texturesAreValid) {
-            entry->abandonTexture();
-        }
-        SkDELETE(entry);
-        entry = next;
-    }
-    
-    fSorted.reset();
-    bzero(fHash, sizeof(fHash));
-    
-    fTexCount = 0;
-    fTexSize = 0;
-    
-    fTail = fHead = NULL;
-    
-    this->validate();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-int SkTextureCache::findInSorted(const Key& key) const {
-    int count = fSorted.count();
-    if (count == 0) {
-        return ~0;
-    }
-
-    Entry** sorted = fSorted.begin();
-    int lo = 0;
-    int hi = count - 1;
-    while (lo < hi) {
-        int mid = (hi + lo) >> 1;
-        if (sorted[mid]->getKey() < key) {
-            lo = mid + 1;
-        } else {
-            hi = mid;
-        }
-    }
-    
-    // hi is now our best guess
-    const Entry* entry = sorted[hi];
-    if (entry->getKey() == key) {
-        return hi;
-    }
-    
-    // return where to insert it
-    if (entry->getKey() < key) {
-        hi += 1;
-    }
-    return ~hi; // we twiddle to indicate not-found
-}
-
-#ifdef TRACE_HASH_HITS
-static int gHashHits;
-static int gSortedHits;
-#endif
-
-SkTextureCache::Entry* SkTextureCache::find(const Key& key, int* insert) const {
-    int count = fSorted.count();
-    if (count == 0) {
-        *insert = 0;
-        return NULL;
-    }
-
-    // check the hash first
-    int hashIndex = key.getHashIndex();
-    Entry* entry = fHash[hashIndex];    
-    if (NULL != entry && entry->getKey() == key) {
-#ifdef TRACE_HASH_HITS
-        gHashHits += 1;
-#endif
-        return entry;
-    }
-    
-    int index = this->findInSorted(key);
-    if (index >= 0) {
-#ifdef TRACE_HASH_HITS
-        gSortedHits += 1;
-#endif
-        entry = fSorted[index];
-        fHash[hashIndex] = entry;
-        return entry;
-    }
-    
-    // ~index is where to insert the entry
-    *insert = ~index;
-    return NULL;
-}
-
-SkTextureCache::Entry* SkTextureCache::lock(const SkBitmap& bitmap) {
-    this->validate();
-    
-    // call this before we call find(), so we don't reorder after find() and
-    // invalidate our index
-    this->purgeIfNecessary(SkGL::ComputeTextureMemorySize(bitmap));
-
-    Key key(bitmap);
-    int index;
-    Entry* entry = this->find(key, &index);
-
-    if (NULL == entry) {
-        entry = SkNEW_ARGS(Entry, (bitmap));
-        
-        entry->fName = SkGL::BindNewTexture(bitmap, &entry->fTexSize);
-        if (0 == entry->fName) {
-            SkDELETE(entry);
-            return NULL;
-        }
-        fHash[key.getHashIndex()] = entry;
-        *fSorted.insert(index) = entry;
-
-        fTexCount += 1;
-        fTexSize += entry->memSize();
-    } else {
-        // detach from our llist
-        Entry* prev = entry->fPrev;
-        Entry* next = entry->fNext;
-        if (prev) {
-            prev->fNext = next;
-        } else {
-            SkASSERT(fHead == entry);
-            fHead = next;
-        }
-        if (next) {
-            next->fPrev = prev;
-        } else {
-            SkASSERT(fTail == entry);
-            fTail = prev;
-        }
-        // now bind the texture
-        glBindTexture(GL_TEXTURE_2D, entry->fName);
-    }
-    
-    // add to head of llist for LRU
-    entry->fPrev = NULL;
-    entry->fNext = fHead;
-    if (NULL != fHead) {
-        SkASSERT(NULL == fHead->fPrev);
-        fHead->fPrev = entry;
-    }
-    fHead = entry;
-    if (NULL == fTail) {
-        fTail = entry;
-    }
-    
-    this->validate();
-    entry->lock();
-    
-#ifdef TRACE_HASH_HITS
-    SkDebugf("---- texture cache hash=%d sorted=%d\n", gHashHits, gSortedHits);
-#endif
-    return entry;
-}
-
-void SkTextureCache::unlock(Entry* entry) {
-    this->validate();
-
-#ifdef SK_DEBUG
-    SkASSERT(entry);
-    int index = this->findInSorted(entry->getKey());
-    SkASSERT(fSorted[index] == entry);
-#endif
-
-    SkASSERT(entry->fLockCount > 0);
-    entry->unlock();
-}
-
-void SkTextureCache::purgeIfNecessary(size_t extraSize) {
-    this->validate();
-
-    size_t countMax = fTexCountMax;
-    size_t sizeMax = fTexSizeMax;
-    
-    // take extraSize into account, but watch for underflow of size_t
-    if (extraSize > sizeMax) {
-        sizeMax = 0;
-    } else {
-        sizeMax -= extraSize;
-    }
-
-    Entry* entry = fTail;
-    while (entry) {
-        if (fTexCount <= countMax && fTexSize <= sizeMax) {
-            break;
-        }
-
-        Entry* prev = entry->fPrev;
-        // don't purge an entry that is locked
-        if (entry->isLocked()) {
-            entry = prev;
-            continue;
-        }
-
-        fTexCount -= 1;
-        fTexSize -= entry->memSize();
-
-        // remove from our sorted and hash arrays
-        int index = this->findInSorted(entry->getKey());
-        SkASSERT(index >= 0);
-        fSorted.remove(index);
-        index = entry->getKey().getHashIndex();
-        if (entry == fHash[index]) {
-            fHash[index] = NULL;
-        }
-
-        // now detach it from our llist
-        Entry* next = entry->fNext;
-        if (prev) {
-            prev->fNext = next;
-        } else {
-            fHead = next;
-        }
-        if (next) {
-            next->fPrev = prev;
-        } else {
-            fTail = prev;
-        }
-        
-        // now delete it
-#ifdef TRACE_TEXTURE_CACHE_PURGE
-        SkDebugf("---- purge texture cache %d size=%d\n",
-                 entry->name(), entry->memSize());
-#endif
-        SkDELETE(entry);
-        
-        // keep going
-        entry = prev;
-    }
-
-    this->validate();
-}
-
-void SkTextureCache::setMaxCount(size_t count) {
-    if (fTexCountMax != count) {
-        fTexCountMax = count;
-        this->purgeIfNecessary(0);
-    }
-}
-
-void SkTextureCache::setMaxSize(size_t size) {
-    if (fTexSizeMax != size) {
-        fTexSizeMax = size;
-        this->purgeIfNecessary(0);
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-#ifdef SK_DEBUG
-void SkTextureCache::validate() const {
-    if (0 == fTexCount) {
-        SkASSERT(0 == fTexSize);
-        SkASSERT(NULL == fHead);
-        SkASSERT(NULL == fTail);
-        return;
-    }
-
-    SkASSERT(fTexSize); // do we allow a zero-sized texture?
-    SkASSERT(fHead);
-    SkASSERT(fTail);
-    
-    SkASSERT(NULL == fHead->fPrev);
-    SkASSERT(NULL == fTail->fNext);
-    if (1 == fTexCount) {
-        SkASSERT(fHead == fTail);
-    }
-
-    const Entry* entry = fHead;
-    size_t count = 0;
-    size_t size = 0;
-    size_t i;
-
-    while (entry != NULL) {
-        SkASSERT(count < fTexCount);
-        SkASSERT(size < fTexSize);
-        size += entry->memSize();
-        count += 1;
-        if (NULL == entry->fNext) {
-            SkASSERT(fTail == entry);
-        }
-        entry = entry->fNext;
-    }
-    SkASSERT(count == fTexCount);
-    SkASSERT(size == fTexSize);
-
-    count = 0;
-    size = 0;
-    entry = fTail;
-    while (entry != NULL) {
-        SkASSERT(count < fTexCount);
-        SkASSERT(size < fTexSize);
-        size += entry->memSize();
-        count += 1;
-        if (NULL == entry->fPrev) {
-            SkASSERT(fHead == entry);
-        }
-        entry = entry->fPrev;
-    }
-    SkASSERT(count == fTexCount);
-    SkASSERT(size == fTexSize);
-    
-    SkASSERT(count == (size_t)fSorted.count());
-    for (i = 1; i < count; i++) {
-        SkASSERT(fSorted[i-1]->getKey() < fSorted[i]->getKey());
-    }
-    
-    for (i = 0; i < kHashCount; i++) {
-        if (fHash[i]) {
-            size_t index = fHash[i]->getKey().getHashIndex();
-            SkASSERT(index == i);
-            index = fSorted.find(fHash[i]);
-            SkASSERT((size_t)index < count);
-        }
-    }
-}
-#endif
-
-