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 HW_EMULATOR_TORCH_STATE_H 18 #define HW_EMULATOR_TORCH_STATE_H 19 20 #include <hwl_types.h> 21 22 #include <mutex> 23 #include <queue> 24 25 namespace android { 26 27 using android::google_camera_hal::HwlTorchModeStatusChangeFunc; 28 using android::google_camera_hal::TorchMode; 29 using android::google_camera_hal::TorchModeStatus; 30 31 class EmulatedTorchState { 32 public: EmulatedTorchState(uint32_t camera_id,HwlTorchModeStatusChangeFunc torch_cb)33 EmulatedTorchState(uint32_t camera_id, HwlTorchModeStatusChangeFunc torch_cb) 34 : camera_id_(camera_id), torch_cb_(torch_cb) { 35 } 36 37 status_t SetTorchMode(TorchMode mode); 38 status_t TurnOnTorchWithStrengthLevel(int32_t torch_strength); 39 40 void AcquireFlashHw(); 41 void ReleaseFlashHw(); 42 int32_t GetTorchStrengthLevel(); 43 void InitializeTorchDefaultLevel(int32_t default_level); 44 void InitializeSupportTorchStrengthLevel(bool is_torch_strength_control_supported); 45 46 private: 47 std::mutex mutex_; 48 49 uint32_t camera_id_; 50 HwlTorchModeStatusChangeFunc torch_cb_; 51 bool camera_open_ = false; 52 TorchModeStatus torch_status_; 53 int32_t new_torch_strength_level_ = 0; 54 bool support_torch_strength_control_ = false; 55 int32_t default_level_ = 0; 56 57 EmulatedTorchState(const EmulatedTorchState&) = delete; 58 EmulatedTorchState& operator=(const EmulatedTorchState&) = delete; 59 }; 60 61 } // namespace android 62 63 #endif 64