working_image_context.h

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#pragma once
#include "common/types/image_types.h"
#include "common/image_region.h"
#include "image_processing/interfaces/i_working_image_hardware.h"
#include "image_processing/common/working_image_data.h"
 
#include <memory>
 
namespace CaptureMoment::Core {
 
namespace ImageProcessing {
 
class WorkingImageContext
{
public:
    WorkingImageContext() = default;
 
    ~WorkingImageContext() = default;
 
    // Non-copyable, movable
    WorkingImageContext(const WorkingImageContext&) = delete;
    WorkingImageContext& operator=(const WorkingImageContext&) = delete;
    WorkingImageContext(WorkingImageContext&&) = default;
    WorkingImageContext& operator=(WorkingImageContext&&) = default;
 
    [[nodiscard]] bool prepare(std::unique_ptr<Common::ImageRegion> original_tile);
 
    void resetToOriginal();
 
    [[nodiscard]] bool isReady() const noexcept;
 
    [[nodiscard]] std::expected<std::unique_ptr<Common::ImageRegion>, ErrorHandling::CoreError>
    getWorkingImageAsRegion() const;
 
    [[nodiscard]] std::shared_ptr<IWorkingImageHardware>
     getWorkingImage() noexcept;
 
    [[nodiscard]] std::expected<std::unique_ptr<Common::ImageRegion>, ErrorHandling::CoreError>
    getDownsampled(Common::ImageDim target_width, Common::ImageDim target_height);
 
    void release() noexcept;
 
private:
 
    std::unique_ptr<WorkingImageData> m_image_data;
 
    std::shared_ptr<IWorkingImageHardware> m_working_image;
};
 
} // namespace ImageProcessing
} // namespace CaptureMoment::Core