| /* |
| * Copyright (C) 2018 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. |
| */ |
| |
| #ifndef ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V2_0_BUFFERPOOLTYPES_H |
| #define ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V2_0_BUFFERPOOLTYPES_H |
| |
| #include <android/hardware/media/bufferpool/2.0/types.h> |
| #include <cutils/native_handle.h> |
| #include <fmq/MessageQueue.h> |
| #include <hidl/MQDescriptor.h> |
| #include <hidl/Status.h> |
| |
| namespace android { |
| namespace hardware { |
| namespace media { |
| namespace bufferpool { |
| |
| struct BufferPoolData { |
| // For local use, to specify a bufferpool (client connection) for buffers. |
| // Return value from connect#IAccessor(android.hardware.media.bufferpool@2.0). |
| int64_t mConnectionId; |
| // BufferId |
| uint32_t mId; |
| |
| BufferPoolData() : mConnectionId(0), mId(0) {} |
| |
| BufferPoolData( |
| int64_t connectionId, uint32_t id) |
| : mConnectionId(connectionId), mId(id) {} |
| |
| ~BufferPoolData() {} |
| }; |
| |
| namespace V2_0 { |
| namespace implementation { |
| |
| using ::android::hardware::kSynchronizedReadWrite; |
| using ::android::hardware::kUnsynchronizedWrite; |
| |
| typedef uint32_t BufferId; |
| typedef uint64_t TransactionId; |
| typedef int64_t ConnectionId; |
| |
| enum : ConnectionId { |
| INVALID_CONNECTIONID = 0, |
| }; |
| |
| typedef android::hardware::MessageQueue<BufferStatusMessage, kSynchronizedReadWrite> BufferStatusQueue; |
| typedef BufferStatusQueue::Descriptor StatusDescriptor; |
| |
| typedef android::hardware::MessageQueue<BufferInvalidationMessage, kUnsynchronizedWrite> |
| BufferInvalidationQueue; |
| typedef BufferInvalidationQueue::Descriptor InvalidationDescriptor; |
| |
| /** |
| * Allocation wrapper class for buffer pool. |
| */ |
| struct BufferPoolAllocation { |
| const native_handle_t *mHandle; |
| |
| const native_handle_t *handle() { |
| return mHandle; |
| } |
| |
| BufferPoolAllocation(const native_handle_t *handle) : mHandle(handle) {} |
| |
| ~BufferPoolAllocation() {}; |
| }; |
| |
| /** |
| * Allocator wrapper class for buffer pool. |
| */ |
| class BufferPoolAllocator { |
| public: |
| |
| /** |
| * Allocate an allocation(buffer) for buffer pool. |
| * |
| * @param params allocation parameters |
| * @param alloc created allocation |
| * @param allocSize size of created allocation |
| * |
| * @return OK when an allocation is created successfully. |
| */ |
| virtual ResultStatus allocate( |
| const std::vector<uint8_t> ¶ms, |
| std::shared_ptr<BufferPoolAllocation> *alloc, |
| size_t *allocSize) = 0; |
| |
| /** |
| * Returns whether allocation parameters of an old allocation are |
| * compatible with new allocation parameters. |
| */ |
| virtual bool compatible(const std::vector<uint8_t> &newParams, |
| const std::vector<uint8_t> &oldParams) = 0; |
| |
| protected: |
| BufferPoolAllocator() = default; |
| |
| virtual ~BufferPoolAllocator() = default; |
| }; |
| |
| } // namespace implementation |
| } // namespace V2_0 |
| } // namespace bufferpool |
| } // namespace media |
| } // namespace hardware |
| } // namespace android |
| |
| #endif // ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V2_0_BUFFERPOOLTYPES_H |