image_io.h

/********************************************************************
 * Copyright (C) 2015 Liangliang Nan <liangliang.nan@gmail.com>
 * https://3d.bk.tudelft.nl/liangliang/
 *
 * This file is part of Easy3D. If it is useful in your research/work,
 * I would be grateful if you show your appreciation by citing it:
 * ------------------------------------------------------------------
 *      Liangliang Nan.
 *      Easy3D: a lightweight, easy-to-use, and efficient C++ library
 *      for processing and rendering 3D data.
 *      Journal of Open Source Software, 6(64), 3255, 2021.
 * ------------------------------------------------------------------
 *
 * Easy3D is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 3
 * as published by the Free Software Foundation.
 *
 * Easy3D is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 ********************************************************************/
 
#ifndef EASY3D_FILEIO_IMAGE_IO_H
#define EASY3D_FILEIO_IMAGE_IO_H
 
#include <vector>
#include <string>
 
 
namespace easy3d {
 
 
    class ImageIO
    {
    public:
        static bool load(
                const std::string& file_name,
                std::vector<unsigned char>& data,
                int& width,
                int& height,
                int& channels,
                int requested_channels = 0,
                bool flip_vertically = true
                );
 
        static bool save(
                const std::string& file_name,
                const std::vector<unsigned char>& data,
                int width,
                int height,
                int channels,
                bool flip_vertically = false
                );
 
    };
 
 
    namespace io {
 
        bool save_ppm(const std::string& file_name, const std::vector<unsigned char>& bits, int width, int height);
 
        bool save_bmp(const std::string& file_name, const std::vector<unsigned char>& bits, int width, int height);
 
        bool save_tga(const std::string& file_name, const std::vector<unsigned char>& bits, int width, int height);
 
    }
 
 
} // namespace easy3d
 
 
#endif  // EASY3D_FILEIO_IMAGE_IO_H