AIDL BufferPool implementation (HIDL -> AIDL)
Bug: 254050250
Test: m
Change-Id: I0d7bae2c01bd480d1e99f4b39c4a9013a2828897
diff --git a/media/bufferpool/aidl/default/DataHelper.h b/media/bufferpool/aidl/default/DataHelper.h
new file mode 100644
index 0000000..a90b3c7
--- /dev/null
+++ b/media/bufferpool/aidl/default/DataHelper.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/media/bufferpool2/BufferStatusMessage.h>
+#include <bufferpool2/BufferPoolTypes.h>
+
+#include <map>
+#include <set>
+
+namespace aidl::android::hardware::media::bufferpool2::implementation {
+
+// Helper template methods for handling map of set.
+template<class T, class U>
+bool insert(std::map<T, std::set<U>> *mapOfSet, T key, U value) {
+ auto iter = mapOfSet->find(key);
+ if (iter == mapOfSet->end()) {
+ std::set<U> valueSet{value};
+ mapOfSet->insert(std::make_pair(key, valueSet));
+ return true;
+ } else if (iter->second.find(value) == iter->second.end()) {
+ iter->second.insert(value);
+ return true;
+ }
+ return false;
+}
+
+// Helper template methods for handling map of set.
+template<class T, class U>
+bool erase(std::map<T, std::set<U>> *mapOfSet, T key, U value) {
+ bool ret = false;
+ auto iter = mapOfSet->find(key);
+ if (iter != mapOfSet->end()) {
+ if (iter->second.erase(value) > 0) {
+ ret = true;
+ }
+ if (iter->second.size() == 0) {
+ mapOfSet->erase(iter);
+ }
+ }
+ return ret;
+}
+
+// Helper template methods for handling map of set.
+template<class T, class U>
+bool contains(std::map<T, std::set<U>> *mapOfSet, T key, U value) {
+ auto iter = mapOfSet->find(key);
+ if (iter != mapOfSet->end()) {
+ auto setIter = iter->second.find(value);
+ return setIter != iter->second.end();
+ }
+ return false;
+}
+
+// Buffer data structure for internal BufferPool use.(storage/fetching)
+struct InternalBuffer {
+ BufferId mId;
+ size_t mOwnerCount;
+ size_t mTransactionCount;
+ const std::shared_ptr<BufferPoolAllocation> mAllocation;
+ const size_t mAllocSize;
+ const std::vector<uint8_t> mConfig;
+ bool mInvalidated;
+
+ InternalBuffer(
+ BufferId id,
+ const std::shared_ptr<BufferPoolAllocation> &alloc,
+ const size_t allocSize,
+ const std::vector<uint8_t> &allocConfig)
+ : mId(id), mOwnerCount(0), mTransactionCount(0),
+ mAllocation(alloc), mAllocSize(allocSize), mConfig(allocConfig),
+ mInvalidated(false) {}
+
+ const native_handle_t *handle() {
+ return mAllocation->handle();
+ }
+
+ void invalidate() {
+ mInvalidated = true;
+ }
+};
+
+// Buffer transacion status/message data structure for internal BufferPool use.
+struct TransactionStatus {
+ TransactionId mId;
+ BufferId mBufferId;
+ ConnectionId mSender;
+ ConnectionId mReceiver;
+ BufferStatus mStatus;
+ int64_t mTimestampMs;
+ bool mSenderValidated;
+
+ TransactionStatus(const BufferStatusMessage &message, int64_t timestampMs) {
+ mId = message.transactionId;
+ mBufferId = message.bufferId;
+ mStatus = message.status;
+ mTimestampMs = timestampMs;
+ if (mStatus == BufferStatus::TRANSFER_TO) {
+ mSender = message.connectionId;
+ mReceiver = message.targetConnectionId;
+ mSenderValidated = true;
+ } else {
+ mSender = -1LL;
+ mReceiver = message.connectionId;
+ mSenderValidated = false;
+ }
+ }
+};
+
+} // namespace aidl::android::hardware::media::bufferpool2::implementation