image.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
 *                                                                           *
 * Copyright(C) 2021-2025                                                    *
 * Visual Computing Lab                                                      *
 * ISTI - Italian National Research Council                                  *
 *                                                                           *
 * All rights reserved.                                                      *
 *                                                                           *
 * This program is free software; you can redistribute it and/or modify      *
 * it under the terms of the Mozilla Public License Version 2.0 as published *
 * by the Mozilla Foundation; either version 2 of the License, or            *
 * (at your option) any later version.                                       *
 *                                                                           *
 * This program 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              *
 * Mozilla Public License Version 2.0                                        *
 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details.                *
 ****************************************************************************/
 
#ifndef VCL_CONCEPTS_SPACE_IMAGE_H
#define VCL_CONCEPTS_SPACE_IMAGE_H
 
#include "color.h"
 
#include <vclib/types.h>
 
#include <string>
 
namespace vcl {
 
template<typename T>
concept ImageConcept = requires (T&& obj, const void* dataPtr, uint n) {
    // constructors
    RemoveRef<T>();
    RemoveRef<T>(std::string());
    RemoveRef<T>(dataPtr, n, n);
    RemoveRef<T>(dataPtr, n, n, bool());
 
    { obj.isNull() } -> std::same_as<bool>;
    { obj.height() } -> std::same_as<int>;
    { obj.width() } -> std::same_as<int>;
 
    { obj.sizeInBytes() } -> std::same_as<std::size_t>;
 
    { obj.pixel(uint(), uint()) } -> ColorConcept;
 
    { obj.data() } -> std::same_as<const unsigned char*>;
 
    { obj.save(std::string()) } -> std::same_as<void>;
    { obj.save(std::string(), uint()) } -> std::same_as<void>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.load(std::string()) } -> std::same_as<bool>;
 
        { obj.mirror() } -> std::same_as<void>;
        { obj.mirror(bool()) } -> std::same_as<void>;
        { obj.mirror(bool(), bool()) } -> std::same_as<void>;
    };
};
 
} // namespace vcl
 
#endif // VCL_CONCEPTS_SPACE_IMAGE_H