lut3d.h

Go to the documentation of this file.

/*
    This file is part of Ansel,
    Copyright (C) 2026 Aurélien PIERRE.
 
    Ansel 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.
 
    Ansel 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
 
#include <stdint.h>
#include <stdlib.h>
 
typedef enum dt_lut3d_interpolation_t
{
  DT_LUT3D_INTERP_TETRAHEDRAL = 0,
  DT_LUT3D_INTERP_TRILINEAR = 1,
  DT_LUT3D_INTERP_PYRAMID = 2,
} dt_lut3d_interpolation_t;
 
void dt_lut3d_apply(const float *in, float *out, size_t pixel_nb, const float *clut, uint16_t level,
                    float normalization, dt_lut3d_interpolation_t interpolation);
 
void dt_lut3d_tetrahedral_interp(const float *in, float *out, size_t pixel_nb, const float *clut,
                                 uint16_t level, float normalization);
void dt_lut3d_trilinear_interp(const float *in, float *out, size_t pixel_nb, const float *clut,
                               uint16_t level, float normalization);
void dt_lut3d_pyramid_interp(const float *in, float *out, size_t pixel_nb, const float *clut,
                             uint16_t level, float normalization);