| /* |
| * 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. |
| */ |
| package android.frameworks.bufferhub@1.0; |
| |
| import android.hardware.graphics.common@1.2::HardwareBufferDescription; |
| import IBufferClient; |
| |
| interface IBufferHub { |
| /** |
| * Allocates a new buffer. |
| * |
| * @param description The desired buffer parameters for the new buffer. |
| * @param userMetadataSize The size of the user defined metadata in bytes. |
| * @return status The result of this operation. NO_ERROR on success, |
| * error code on failure. |
| * @return bufferClient An bufferClient interface associated with |
| * the buffer just allocated. |
| * @return bufferTraits the struct containing the information of the buffer. |
| */ |
| allocateBuffer(HardwareBufferDescription description, |
| uint32_t userMetadataSize) |
| generates (BufferHubStatus status, |
| IBufferClient bufferClient, |
| BufferTraits bufferTraits); |
| |
| /** |
| * Fetches a bufferClient interface from a provided handle. |
| * |
| * @param nativeHandle Handle received from allocateBuffer. |
| * @return status The result of this operation. NO_ERROR on success, |
| * error code on failure. |
| * @return bufferClient An bufferClient interface associated with |
| * the nativeHandle passed in. |
| * @return bufferTraits the struct containing the information of the buffer. |
| */ |
| importBuffer(handle nativeHandle) |
| generates (BufferHubStatus status, |
| IBufferClient bufferClient, |
| BufferTraits bufferTraits); |
| }; |