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88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MaskLayerImageCache.h"
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#include "ImageContainer.h"
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using namespace mozilla::layers;
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namespace mozilla {
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MaskLayerImageCache::MaskLayerImageCache()
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{
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MOZ_COUNT_CTOR(MaskLayerImageCache);
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}
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MaskLayerImageCache::~MaskLayerImageCache()
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{
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MOZ_COUNT_DTOR(MaskLayerImageCache);
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}
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/* static */ PLDHashOperator
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MaskLayerImageCache::SweepFunc(MaskLayerImageEntry* aEntry,
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void* aUserArg)
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{
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const MaskLayerImageCache::MaskLayerImageKey* key = aEntry->mKey;
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if (key->mLayerCount == 0) {
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return PL_DHASH_REMOVE;
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}
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return PL_DHASH_NEXT;
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}
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void
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MaskLayerImageCache::Sweep()
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{
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mMaskImageContainers.EnumerateEntries(SweepFunc, nullptr);
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}
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ImageContainer*
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MaskLayerImageCache::FindImageFor(const MaskLayerImageKey** aKey)
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{
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if (MaskLayerImageEntry* entry = mMaskImageContainers.GetEntry(**aKey)) {
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*aKey = entry->mKey.get();
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return entry->mContainer;
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}
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return nullptr;
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}
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void
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MaskLayerImageCache::PutImage(const MaskLayerImageKey* aKey, ImageContainer* aContainer)
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{
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MaskLayerImageEntry* entry = mMaskImageContainers.PutEntry(*aKey);
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entry->mContainer = aContainer;
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}
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// This case is particularly 'clever' because it uses AddRef/Release to track the use
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// not to release the object.
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template<>
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struct HasDangerousPublicDestructor<MaskLayerImageCache::MaskLayerImageKey>
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{
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static const bool value = true;
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};
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MaskLayerImageCache::MaskLayerImageKey::MaskLayerImageKey()
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: mLayerCount(0)
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, mRoundedClipRects()
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{
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MOZ_COUNT_CTOR(MaskLayerImageKey);
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}
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MaskLayerImageCache::MaskLayerImageKey::MaskLayerImageKey(const MaskLayerImageKey& aKey)
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: mLayerCount(aKey.mLayerCount)
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, mRoundedClipRects(aKey.mRoundedClipRects)
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{
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MOZ_COUNT_CTOR(MaskLayerImageKey);
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}
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MaskLayerImageCache::MaskLayerImageKey::~MaskLayerImageKey()
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{
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MOZ_COUNT_DTOR(MaskLayerImageKey);
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}
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}
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