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-rw-r--r--layout/base/MaskLayerImageCache.cpp70
1 files changed, 70 insertions, 0 deletions
diff --git a/layout/base/MaskLayerImageCache.cpp b/layout/base/MaskLayerImageCache.cpp
new file mode 100644
index 000000000..e9039070c
--- /dev/null
+++ b/layout/base/MaskLayerImageCache.cpp
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MaskLayerImageCache.h"
+#include "ImageContainer.h"
+
+using namespace mozilla::layers;
+
+namespace mozilla {
+
+MaskLayerImageCache::MaskLayerImageCache()
+{
+ MOZ_COUNT_CTOR(MaskLayerImageCache);
+}
+MaskLayerImageCache::~MaskLayerImageCache()
+{
+ MOZ_COUNT_DTOR(MaskLayerImageCache);
+}
+
+void
+MaskLayerImageCache::Sweep()
+{
+ for (auto iter = mMaskImageContainers.Iter(); !iter.Done(); iter.Next()) {
+ const MaskLayerImageCache::MaskLayerImageKey* key = iter.Get()->mKey;
+ if (key->HasZeroLayerCount()) {
+ iter.Remove();
+ }
+ }
+}
+
+ImageContainer*
+MaskLayerImageCache::FindImageFor(const MaskLayerImageKey** aKey)
+{
+ if (MaskLayerImageEntry* entry = mMaskImageContainers.GetEntry(**aKey)) {
+ *aKey = entry->mKey.get();
+ return entry->mContainer;
+ }
+
+ return nullptr;
+}
+
+void
+MaskLayerImageCache::PutImage(const MaskLayerImageKey* aKey, ImageContainer* aContainer)
+{
+ MaskLayerImageEntry* entry = mMaskImageContainers.PutEntry(*aKey);
+ entry->mContainer = aContainer;
+}
+
+MaskLayerImageCache::MaskLayerImageKey::MaskLayerImageKey()
+ : mRoundedClipRects()
+ , mLayerCount(0)
+{
+ MOZ_COUNT_CTOR(MaskLayerImageKey);
+}
+
+MaskLayerImageCache::MaskLayerImageKey::MaskLayerImageKey(const MaskLayerImageKey& aKey)
+ : mRoundedClipRects(aKey.mRoundedClipRects)
+ , mLayerCount(aKey.mLayerCount)
+{
+ MOZ_COUNT_CTOR(MaskLayerImageKey);
+}
+
+MaskLayerImageCache::MaskLayerImageKey::~MaskLayerImageKey()
+{
+ MOZ_COUNT_DTOR(MaskLayerImageKey);
+}
+
+} // namespace mozilla