1 /* 2 * Copyright (C) 2022 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 ANDROID_SERVERS_HIDL_CAMERA3_OUTPUT_UTILS_H 18 #define ANDROID_SERVERS_HIDL_CAMERA3_OUTPUT_UTILS_H 19 20 #include <memory> 21 #include <mutex> 22 23 #include <cutils/native_handle.h> 24 25 #include <fmq/MessageQueue.h> 26 27 #include <common/CameraDeviceBase.h> 28 29 #include <android/hardware/camera/device/3.5/ICameraDeviceCallback.h> 30 31 #include "device3/BufferUtils.h" 32 #include "device3/InFlightRequest.h" 33 #include "device3/Camera3Stream.h" 34 #include "device3/Camera3OutputUtils.h" 35 36 namespace android { 37 38 using ResultMetadataQueue = hardware::MessageQueue<uint8_t, hardware::kSynchronizedReadWrite>; 39 40 namespace camera3 { 41 42 /** 43 * Helper methods shared between HidlCamera3Device/HidlCamera3OfflineSession for HAL callbacks 44 */ 45 // Camera3Device/Camera3OfflineSession internal states used in notify/processCaptureResult 46 // callbacks 47 struct HidlCaptureOutputStates : public CaptureOutputStates { 48 std::unique_ptr<ResultMetadataQueue>& fmq; 49 }; 50 51 // Handle one capture result. Assume callers hold the lock to serialize all 52 // processCaptureResult calls 53 void processOneCaptureResultLocked( 54 HidlCaptureOutputStates& states, 55 const hardware::camera::device::V3_2::CaptureResult& result, 56 const hardware::hidl_vec< 57 hardware::camera::device::V3_4::PhysicalCameraMetadata> 58 &physicalCameraMetadata); 59 60 // Handle one notify message 61 void notify(CaptureOutputStates& states, 62 const hardware::camera::device::V3_2::NotifyMsg& msg); 63 void requestStreamBuffers(RequestBufferStates& states, 64 const hardware::hidl_vec<hardware::camera::device::V3_5::BufferRequest>& bufReqs, 65 hardware::camera::device::V3_5::ICameraDeviceCallback::requestStreamBuffers_cb 66 _hidl_cb); 67 void returnStreamBuffers(ReturnBufferStates& states, 68 const hardware::hidl_vec<hardware::camera::device::V3_2::StreamBuffer>& buffers); 69 70 } // namespace camera3 71 72 } // namespace android 73 74 #endif 75