void ImageDecodingStore::unlockCache(const ImageFrameGenerator* generator, const ScaledImageFragment* cachedImage)
{
Vector<OwnPtr<CacheEntry> > cacheEntriesToDelete;
{
MutexLocker lock(m_mutex);
cachedImage->bitmap().unlockPixels();
ImageCacheMap::iterator iter = m_imageCacheMap.find(ImageCacheEntry::makeCacheKey(generator, cachedImage->scaledSize(), cachedImage->index(), cachedImage->generation()));
ASSERT_WITH_SECURITY_IMPLICATION(iter != m_imageCacheMap.end());
CacheEntry* cacheEntry = iter->value.get();
cacheEntry->decrementUseCount();
// Put the entry to the end of list.
m_orderedCacheList.remove(cacheEntry);
m_orderedCacheList.append(cacheEntry);
// FIXME: This code is temporary such that in the new Skia
// discardable memory path we do not cache images.
// Once the transition is complete the logic to handle
// image caching should be removed entirely.
if (!s_imageCachingEnabled && !cacheEntry->useCount()) {
removeFromCacheInternal(cacheEntry, &cacheEntriesToDelete);
removeFromCacheListInternal(cacheEntriesToDelete);
}
}
}
void ImageDecodingStore::unlockDecoder(const ImageFrameGenerator* generator, const ImageDecoder* decoder)
{
MutexLocker lock(m_mutex);
DecoderCacheMap::iterator iter = m_decoderCacheMap.find(DecoderCacheEntry::makeCacheKey(generator, decoder));
ASSERT_WITH_SECURITY_IMPLICATION(iter != m_decoderCacheMap.end());
CacheEntry* cacheEntry = iter->value.get();
cacheEntry->decrementUseCount();
// Put the entry to the end of list.
m_orderedCacheList.remove(cacheEntry);
m_orderedCacheList.append(cacheEntry);
}
void ImageDecodingStore::unlockCache(const ImageFrameGenerator* generator, const ScaledImageFragment* cachedImage)
{
MutexLocker lock(m_mutex);
cachedImage->bitmap().unlockPixels();
CacheMap::iterator iter = m_cacheMap.find(std::make_pair(generator, cachedImage->scaledSize()));
ASSERT(iter != m_cacheMap.end());
CacheEntry* cacheEntry = iter->value.get();
cacheEntry->decrementUseCount();
// Put the entry to the end of list.
m_orderedCacheList.remove(cacheEntry);
m_orderedCacheList.append(cacheEntry);
}
void ImageDecodingStore::removeDecoder(const ImageFrameGenerator* generator, const ImageDecoder* decoder)
{
Vector<OwnPtr<CacheEntry> > cacheEntriesToDelete;
{
MutexLocker lock(m_mutex);
DecoderCacheMap::iterator iter = m_decoderCacheMap.find(DecoderCacheEntry::makeCacheKey(generator, decoder));
ASSERT_WITH_SECURITY_IMPLICATION(iter != m_decoderCacheMap.end());
CacheEntry* cacheEntry = iter->value.get();
ASSERT(cacheEntry->useCount());
cacheEntry->decrementUseCount();
// Delete only one decoder cache entry. Ownership of the cache entry
// is transfered to cacheEntriesToDelete such that object can be deleted
// outside of the lock.
removeFromCacheInternal(cacheEntry, &cacheEntriesToDelete);
// Remove from LRU list.
removeFromCacheListInternal(cacheEntriesToDelete);
}
}
