ImagePyramidAccess.hpp

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#pragma once
 
#include <FAST/Object.hpp>
#include <FAST/Data/DataTypes.hpp>
 
typedef struct _openslide openslide_t;
 
namespace fast {
 
class Image;
class ImagePyramid;
 
class FAST_EXPORT ImagePyramidPatch {
public:
    std::unique_ptr<uchar[]> data;
    int width;
    int height;
    int offsetX;
    int offsetY;
};
 
class FAST_EXPORT ImagePyramidLevel {
public:
    int width;
    int height;
    int tileWidth = 256;
    int tileHeight = 256;
    int tilesX;
    int tilesY;
    bool memoryMapped;
    uint8_t* data;
#ifdef WIN32
    void* fileHandle;
#else
    int fileHandle;
#endif
};
 
class FAST_EXPORT ImagePyramidAccess : Object {
public:
    typedef std::unique_ptr<ImagePyramidAccess> pointer;
    ImagePyramidAccess(std::vector<ImagePyramidLevel> levels, openslide_t* fileHandle, std::shared_ptr<ImagePyramid> imagePyramid, bool writeAccess);
    void setScalar(uint x, uint y, uint level, uint8_t value, uint channel = 0);
    void setScalarFast(uint x, uint y, uint level, uint8_t value, uint channel = 0) noexcept;
    uint8_t getScalar(uint x, uint y, uint level, uint channel = 0);
    uint8_t getScalarFast(uint x, uint y, uint level, uint channel = 0) noexcept;
    std::unique_ptr<uchar[]> getPatchData(int level, int x, int y, int width, int height);
    ImagePyramidPatch getPatch(std::string tile);
    ImagePyramidPatch getPatch(int level, int patchX, int patchY);
    std::shared_ptr<Image> getLevelAsImage(int level);
    std::shared_ptr<Image> getPatchAsImage(int level, int offsetX, int offsetY, int width, int height);
    std::shared_ptr<Image> getPatchAsImage(int level, int patchIdX, int patchIdY);
    void release();
    ~ImagePyramidAccess();
private:
    std::shared_ptr<ImagePyramid> m_image;
    std::vector<ImagePyramidLevel> m_levels;
    bool m_write;
    openslide_t* m_fileHandle;
};
 
}