plugins/nodes/Tracking/FaceTracker/Helper.h

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/*
-----------------------------------------------------------------------------
This source file is part of FRAPPER
research.animationsinstitut.de
sourceforge.net/projects/frapper

Copyright (c) 2008-2009 Filmakademie Baden-Wuerttemberg, Institute of Animation 

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; version 2.1 of the License.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
-----------------------------------------------------------------------------
*/


#ifndef Helper_h
#define Helper_h

#include <cstdlib>

namespace FaceTrackerNode {



static const float EPSILON = 0.000000000001f;




typedef struct PointNDC {
    float x;    
    float y;    
} PointNDC;


typedef struct RectNDC {
    float x;    
    float y;    
    float w;    
    float h;    
} RectNDC;

typedef struct Attractor {
    PointNDC focusPoint;    
    float    size;          
} Attractor;



static PointNDC CreatePointNDC ( float x, float y )
{
    PointNDC p;
    p.x = x;
    p.y = y;
    return p;
}



static unsigned int getRandom ( unsigned int max )
{
    return (unsigned int) ((float) rand() / RAND_MAX * max);
}


static float getRandom ( float max )
{
    return ((float) rand() / RAND_MAX * max);
}


static float getRandom ()
{
    return getRandom(1.0f);
}

} // namespace FaceTrackerNode 

#endif