#ifndef igs_motion_wind_pixel_h

#define igs_motion_wind_pixel_h

#include <vector></vector>

#include "igs_math_random.h"

#include "igs_ifx_common.h" /* igs::image::rgba::siz */

#ifndef IGS_MOTION_WIND_EXPORT

#define IGS_MOTION_WIND_EXPORT

#endif

namespace igs

{

namespace motion_wind

{

class IGS_MOTION_WIND_EXPORT pixel

{

public:

	pixel(

		const bool blow_dark_sw, const bool blow_alpha_sw

		,

		const unsigned long length_random_seed, const double length_min, const double length_max, const double length_bias, const bool length_ref_sw

		,

		const unsigned long force_random_seed, const double force_min, const double force_max, const double force_bias, const bool force_ref_sw

		,

		const unsigned long density_random_seed, const double density_min, const double density_max, const double density_bias, const bool density_ref_sw);

	int change(

		const bool key_reset_sw

		/***, const int ref_channel

	, const double *ref_pixel***/ /* ゼロなら参照しない */

		,

		const double ref_val /* ゼロ以上なら有効値、マイナスなら無効 */

		,

		const int channels, double *pixel_tgt);

	void clear(void);

private:

	std::vector<double> table_; /* 減少テーブル */</double>

	igs::math::random length_random_;  // default seed is 1

	igs::math::random force_random_;   // default seed is 1

	igs::math::random density_random_; // default seed is 1

	const bool blow_dark_sw_,

		blow_alpha_sw_;

	/* ref全体をセットするか否かは、参照画像があるかない(NULL)かで決める */

	const double length_min_,

		length_max_;

	const double length_bias_;

	const bool length_ref_sw_;

	const double force_min_,

		force_max_;

	const double force_bias_;

	const bool force_ref_sw_;

	const double density_min_,

		density_max_;

	const double density_bias_;

	const bool density_ref_sw_;

	double key_lightness_;

	double pixel_key_[igs::image::rgba::siz];

	long table_len_,

		table_pos_;

	double *table_array_;

	/* copy constructorを無効化 */

	pixel(const pixel &);

	/* 代入演算子を無効化 */

	pixel &operator=(const pixel &);

};

}

}

#endif /* !igs_motion_wind_pixel_h */