splines.h

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/*
    This file is part of darktable,
    Copyright (C) 2019-2020 darktable developers.
 
    darktable is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    darktable 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#if defined(__cplusplus)
extern "C"
{
#endif
 
#include "curve_tools.h"
 
  float interpolate_val_V2(int n, CurveAnchorPoint Points[], float x, unsigned int type);
  float interpolate_val_V2_periodic(int n, CurveAnchorPoint Points[], float x, unsigned int type, float period);
 
  int CurveDataSampleV2(CurveData *curve, CurveSample *sample);
  int CurveDataSampleV2Periodic(CurveData *curve, CurveSample *sample);
 
#if defined(__cplusplus)
}
#endif
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