1 /*****************************************************************************
2 * bezier.h: Functios to handle Bezier curves
3 *****************************************************************************
4 * Copyright (C) 2003 VideoLAN
5 * $Id: bezier.h,v 1.1 2003/03/18 02:21:47 ipkiss Exp $
7 * Authors: Olivier Teulière <ipkiss@via.ecp.fr>
8 * Emmanuel Puig <karibu@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111,
24 *****************************************************************************/
27 #ifndef VLC_SKIN_BEZIER
28 #define VLC_SKIN_BEZIER
30 //---------------------------------------------------------------------------
31 #define MAX_BEZIER_POINT 1023
32 #define BEZIER_PTS_ALL 0
33 #define BEZIER_PTS_Y 1
34 #define BEZIER_PTS_X 2
38 //---------------------------------------------------------------------------
46 double melange( int i, int n, double t );
47 double bezier_pty( double t );
48 double bezier_ptx( double t );
57 double Power( double x, int n );
61 Bezier( double *x, double *y, int n, int flag = BEZIER_PTS_ALL );
66 void GetPoint( double i, int &x, int &y );
67 void GetDifferentPoints( int *x, int *y, int OffX = 0, int OffY = 0 );
68 int GetNumOfDifferentPoints();
72 //---------------------------------------------------------------------------