image_reader_provider.hpp

// SPDX-License-Identifier: LGPL-2.1-or-later
 
#pragma once
 
#include <vitrio/export.hpp>
#include <vitrio/image_descriptor.hpp>
 
#include <memory>
#include <string>
 
namespace vitrio
{
 
class image_reader;
 
class VITRIO_API image_reader_provider
{
public:
    image_reader_provider() noexcept;
    image_reader_provider(const image_reader_provider &other) = delete;
    image_reader_provider(image_reader_provider &&other) = delete;
    virtual ~image_reader_provider();
 
    image_reader_provider&
    operator=(const image_reader_provider &other) = delete;
    image_reader_provider&
    operator=(image_reader_provider &&other) = delete;
 
    virtual std::shared_ptr<const image_reader>
    acquire(const std::string &key) = 0;
};
 
VITRIO_API
image_descriptor query_descriptor(
    image_reader_provider &readers,
    const std::string &key
);
 
} // namespace vitrio