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/*-----------------------------------------------------------------
LOG
    GEM - Graphics Environment for Multimedia

    Hough lines detection algorithm

    Copyright (c) 1997-1999 Mark Danks. mark@danks.org
    Copyright (c) Günther Geiger. geiger@epy.co.at
    Copyright (c) 2001-2002 IOhannes m zmoelnig. forum::für::umläute. IEM. zmoelnig@iem.kug.ac.at
    Copyright (c) 2002 James Tittle & Chris Clepper
    For information on usage and redistribution, and for a DISCLAIMER OF ALL
    WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.

-----------------------------------------------------------------*/

#ifndef INCLUDE_PIX_OPENCV_HOUGH_LINES_H_
#define INCLUDE_PIX_OPENCV_HOUGH_LINES_H_

#include "Base/GemPixObj.h"

#ifndef _EiC
#include "cv.h"
#endif

#define MAX_HISTOGRAMS_TO_COMPARE 80

/*-----------------------------------------------------------------
-------------------------------------------------------------------
CLASS
    pix_opencv_hough_lines
    
    Hough lines detection algorithm

KEYWORDS
    pix
    
DESCRIPTION
   
-----------------------------------------------------------------*/

class GEM_EXTERN pix_opencv_hough_lines : public GemPixObj
{
    CPPEXTERN_HEADER(pix_opencv_hough_lines, GemPixObj)

    public:

	//////////
	// Constructor
    	pix_opencv_hough_lines();
    	
    protected:
    	
    	//////////
    	// Destructor
    	virtual ~pix_opencv_hough_lines();

    	//////////
    	// Do the processing
    	virtual void 	processRGBAImage(imageStruct &image);
    	virtual void 	processRGBImage(imageStruct &image);
	virtual void 	processYUVImage(imageStruct &image);
    	virtual void 	processGrayImage(imageStruct &image); 

        int comp_xsize;
        int comp_ysize;

        void     floatNightModeMess(t_float nightmode);
        void     floatModeMess(t_floatarg mode);
        void     floatThresholdMess(t_floatarg threshold);
        void     floatMinLengthMess(t_floatarg minlength);
        void     floatGapMess(t_floatarg gap);
        void     floatAResolutionMess(t_floatarg aresolution);
        void     floatDResolutionMess(t_floatarg dresolution);
        void     floatMaxLinesMess(t_floatarg maxlines);

        t_outlet *m_dataout;

        int x_mode;
        int x_threshold;
        int x_maxlines;
        double x_minlength;
        double x_gap;
        double x_aresolution;
        double x_dresolution;
        int night_mode;

    private:
    
    	//////////
    	// Static member functions
        static void     floatNightModeMessCallback(void *data, t_float nightmode);
        static void     floatModeMessCallback(void *data, t_floatarg mode);
        static void     floatThresholdMessCallback(void *data, t_floatarg threshold);
        static void     floatMinLengthMessCallback(void *data, t_floatarg minlength);
        static void     floatGapMessCallback(void *data, t_floatarg gap);
        static void     floatAResolutionMessCallback(void *data, t_floatarg aresolution);
        static void     floatDResolutionMessCallback(void *data, t_floatarg dresolution);
        static void     floatMaxLinesMessCallback(void *data, t_floatarg maxlines);

	// The output and temporary images
        IplImage *rgba, *rgb, *gray;
        t_atom x_list[5];

        CvFont font;
        CvMemStorage* x_storage;
        CvSeq* x_lines;

};

#endif	// for header file