1 /* 2 * Copyright (C) 2016 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 V4L2_CAMERA_HAL_METADATA_TAGGED_CONTROL_DELEGATE_H_ 18 #define V4L2_CAMERA_HAL_METADATA_TAGGED_CONTROL_DELEGATE_H_ 19 20 #include <memory> 21 22 #include "control_delegate_interface.h" 23 24 namespace v4l2_camera_hal { 25 26 // A TaggedControlDelegate wraps a ControlDelegate and adds a tag. 27 template <typename T> 28 class TaggedControlDelegate : public ControlDelegateInterface<T> { 29 public: TaggedControlDelegate(int32_t tag,std::unique_ptr<ControlDelegateInterface<T>> delegate)30 TaggedControlDelegate(int32_t tag, 31 std::unique_ptr<ControlDelegateInterface<T>> delegate) 32 : tag_(tag), delegate_(std::move(delegate)){}; 33 tag()34 int32_t tag() { return tag_; }; 35 GetValue(T * value)36 virtual int GetValue(T* value) override { 37 return delegate_->GetValue(value); 38 }; SetValue(const T & value)39 virtual int SetValue(const T& value) override { 40 return delegate_->SetValue(value); 41 }; 42 43 private: 44 const int32_t tag_; 45 std::unique_ptr<ControlDelegateInterface<T>> delegate_; 46 }; 47 48 } // namespace v4l2_camera_hal 49 50 #endif // V4L2_CAMERA_HAL_METADATA_CONTROL_DELEGATE_INTERFACE_H_ 51