michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "MaskLayerImageCache.h"
michael@0: #include "ImageContainer.h"
michael@0: 
michael@0: using namespace mozilla::layers;
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: MaskLayerImageCache::MaskLayerImageCache()
michael@0: {
michael@0:   MOZ_COUNT_CTOR(MaskLayerImageCache);
michael@0: }
michael@0: MaskLayerImageCache::~MaskLayerImageCache()
michael@0: {
michael@0:   MOZ_COUNT_DTOR(MaskLayerImageCache);
michael@0: }
michael@0: 
michael@0: 
michael@0: /* static */ PLDHashOperator
michael@0: MaskLayerImageCache::SweepFunc(MaskLayerImageEntry* aEntry,
michael@0:                                void* aUserArg)
michael@0: {
michael@0:   const MaskLayerImageCache::MaskLayerImageKey* key = aEntry->mKey;
michael@0: 
michael@0:   if (key->mLayerCount == 0) {
michael@0:     return PL_DHASH_REMOVE;
michael@0:   }
michael@0: 
michael@0:   return PL_DHASH_NEXT;
michael@0: }
michael@0: 
michael@0: void
michael@0: MaskLayerImageCache::Sweep() 
michael@0: {
michael@0:   mMaskImageContainers.EnumerateEntries(SweepFunc, nullptr);
michael@0: }
michael@0: 
michael@0: ImageContainer*
michael@0: MaskLayerImageCache::FindImageFor(const MaskLayerImageKey** aKey)
michael@0: {
michael@0:   if (MaskLayerImageEntry* entry = mMaskImageContainers.GetEntry(**aKey)) {
michael@0:     *aKey = entry->mKey.get();
michael@0:     return entry->mContainer;
michael@0:   }
michael@0: 
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: void
michael@0: MaskLayerImageCache::PutImage(const MaskLayerImageKey* aKey, ImageContainer* aContainer)
michael@0: {
michael@0:   MaskLayerImageEntry* entry = mMaskImageContainers.PutEntry(*aKey);
michael@0:   entry->mContainer = aContainer;
michael@0: }
michael@0: 
michael@0: }