Image.h

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// -                        Open3D: www.open3d.org                            -
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// The MIT License (MIT)
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// Copyright (c) 2018 www.open3d.org
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#pragma once

#include <memory>
#include <vector>

#include "open3d/core/Tensor.h"
#include "open3d/t/geometry/Geometry.h"

namespace open3d {
namespace t {
namespace geometry {

class Image : public Geometry {
public:
    Image(int64_t rows = 0,
          int64_t cols = 0,
          int64_t channels = 1,
          core::Dtype dtype = core::Dtype::Float32,
          const core::Device &device = core::Device("CPU:0"));

    Image(const core::Tensor &tensor);

    virtual ~Image() override {}

public:
    Image &Clear() override {
        data_ = core::Tensor({0, 0, GetChannels()}, GetDtype(), GetDevice());
        return *this;
    }

    bool IsEmpty() const override {
        return GetRows() * GetCols() * GetChannels() == 0;
    }

public:
    int64_t GetRows() const { return data_.GetShape()[0]; }

    int64_t GetCols() const { return data_.GetShape()[1]; }

    int64_t GetChannels() const { return data_.GetShape()[2]; }

    core::Dtype GetDtype() const { return data_.GetDtype(); }

    core::Device GetDevice() const { return data_.GetDevice(); }

    core::Tensor At(int64_t r, int64_t c) const {
        if (GetChannels() == 1) {
            return data_[r][c][0];
        } else {
            return data_[r][c];
        }
    }

    core::Tensor At(int64_t r, int64_t c, int64_t ch) const {
        return data_[r][c][ch];
    }

    void *GetDataPtr() { return data_.GetDataPtr(); }

    const void *GetDataPtr() const { return data_.GetDataPtr(); }

    core::Tensor AsTensor() const { return data_; }

protected:
    core::Tensor data_;
};

}  // namespace geometry
}  // namespace t
}  // namespace open3d