1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef HARDWARE_GOOGLE_CAMERA_HAL_GOOGLE_CAMERA_HAL_BASIC_REQUEST_PROCESSOR_H_ 18 #define HARDWARE_GOOGLE_CAMERA_HAL_GOOGLE_CAMERA_HAL_BASIC_REQUEST_PROCESSOR_H_ 19 20 #include <shared_mutex> 21 22 #include "process_block.h" 23 #include "request_processor.h" 24 25 namespace android { 26 namespace google_camera_hal { 27 28 // BasicRequestProcessor implements a basic RequestProcessor that simply 29 // forwards the request to its ProcessBlock without any modification. 30 class BasicRequestProcessor : public RequestProcessor { 31 public: 32 // device_session_hwl is owned by the caller and must be valid during the 33 // lifetime of this BasicRequestProcessor. 34 static std::unique_ptr<BasicRequestProcessor> Create( 35 CameraDeviceSessionHwl* device_session_hwl); 36 37 virtual ~BasicRequestProcessor() = default; 38 39 // Override functions of RequestProcessor start. 40 // BasicRequestProcessor will configure all streams in stream_config. 41 status_t ConfigureStreams( 42 InternalStreamManager* internal_stream_manager, 43 const StreamConfiguration& stream_config, 44 StreamConfiguration* process_block_stream_config) override; 45 46 status_t SetProcessBlock(std::unique_ptr<ProcessBlock> process_block) override; 47 48 status_t ProcessRequest(const CaptureRequest& request) override; 49 50 status_t Flush() override; 51 // Override functions of RequestProcessor end. 52 53 protected: 54 BasicRequestProcessor() = default; 55 56 private: 57 std::shared_mutex process_block_shared_lock_; 58 59 // Protected by process_block_shared_lock_. 60 std::unique_ptr<ProcessBlock> process_block_; 61 }; 62 63 } // namespace google_camera_hal 64 } // namespace android 65 66 #endif // HARDWARE_GOOGLE_CAMERA_HAL_GOOGLE_CAMERA_HAL_BASIC_REQUEST_PROCESSOR_H_ 67