#ifndef INPUTIMAGE_H
#define INPUTIMAGE_H

#include <string>
#include <vector>
#include <jpeglib.h>

class inputImage
{
public:
	inputImage();

	void setImageData(const std::string& data);

	unsigned int width() const;
	unsigned int height() const;
	unsigned int strideX() const;
	unsigned int strideY() const;
	const std::vector<char>& data() const;

private:
	struct source_mgr
	{
		struct jpeg_source_mgr pub;
		const JOCTET *data;
		size_t len;
	};
	typedef source_mgr* source_mgr_ptr;

private:
	static void init_source(j_decompress_ptr pCinfo);
	static boolean fill_input_buffer(j_decompress_ptr pCinfo);
	static void skip_input_data(j_decompress_ptr pCinfo, long numBytes);
	static void term_source(j_decompress_ptr pCinfo);

	void setSourceMgr(j_decompress_ptr pCinfo, const char* pData, size_t len) const;

	void decompressImage(const char* pData, size_t len);

private:
	unsigned int m_width;
	unsigned int m_height;
	unsigned int m_strideX;
	unsigned int m_strideY;

	std::vector<char> m_data;
};

#endif // INPUTIMAGE_H