tqt.hpp

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/*
 * COPYRIGHT (c) 2023 John Reppy (http://cs.uchicago.edu/~jhr)
 * All rights reserved.
 */
 
#ifndef _TQT_HPP_
#define _TQT_HPP_
 
#include "cs237.hpp"
#include <vector>
 
namespace tqt {
 
class TextureQTree {
public:
 
    TextureQTree (std::string const &filename, bool flip, bool sRGB);
    ~TextureQTree();
 
    bool isValid () const { return this->_source != nullptr; }
    int depth() const { return this->_depth; }
    int tileSize() const { return this->_tileSize; }
 
    cs237::Image2D *loadImage (int level, int row, int col);
 
    bool sRGB () const { return this->_sRGB; }
 
    static bool isTQTFile (std::string const &filename);
 
private:
    std::vector<std::streamoff> _toc;       
    int _depth;                             
    int _tileSize;                          
    bool _flip;                             
    bool _sRGB;                             
    std::ifstream *_source;                 
 
};  // class TextureQTree
 
} // namespace tqt
 
#endif // !_TQT_HPP_