services/camera/libcameraservice/device3/CoordinateMapper.h

/*
 * Copyright (C) 2019 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.
 */

#ifndef ANDROID_SERVERS_COORDINATEMAPPER_H
#define ANDROID_SERVERS_COORDINATEMAPPER_H

#include <algorithm>
#include <array>
#include <com_android_internal_camera_flags.h>
#include <set>

namespace android {

namespace camera3 {

namespace flags = com::android::internal::camera::flags;

class CoordinateMapper {
public:
    // The result metadata tags that are to be re-mapped
    const std::set<uint32_t>& getRemappedKeys() const {
        return mRemappedKeys;
    }

    virtual ~CoordinateMapper() = default;

protected:
    // Metadata tags containing 2D coordinates to be corrected.

    // Both capture request and result
    static const std::array<uint32_t, 3> kMeteringRegionsToCorrect;

    // Both capture request and result
    static const std::array<uint32_t, 1> kRectsToCorrect;

    // Only for capture results; don't clamp
    static const std::array<uint32_t, 2> kResultPointsToCorrectNoClamp;

    virtual void initRemappedKeys() = 0;
    std::set<uint32_t> mRemappedKeys;

}; // class CoordinateMapper

} // namespace camera3

} // namespace android

#endif