1 files changed, 42 insertions, 0 deletions
diff --git a/libs/hwui/LayerUpdateQueue.cpp b/libs/hwui/LayerUpdateQueue.cpp
new file mode 100644
index 000000000000..db5f676d09dc
--- /dev/null
+++ b/libs/hwui/LayerUpdateQueue.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "LayerUpdateQueue.h"
+
+#include "RenderNode.h"
+
+namespace android {
+namespace uirenderer {
+
+void LayerUpdateQueue::clear() {
+    mEntries.clear();
+}
+
+void LayerUpdateQueue::enqueueLayerWithDamage(RenderNode* renderNode, Rect damage) {
+    damage.doIntersect(0, 0, renderNode->getWidth(), renderNode->getHeight());
+    if (!damage.isEmpty()) {
+        for (Entry& entry : mEntries) {
+            if (CC_UNLIKELY(entry.renderNode == renderNode)) {
+                entry.damage.unionWith(damage);
+                return;
+            }
+        }
+        mEntries.emplace_back(renderNode, damage);
+    }
+}
+
+} // namespace uirenderer
+} // namespace android