lut_viewer.h

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/*
    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/>.
*/
 
#ifndef DT_GUI_LUT_VIEWER_H
#define DT_GUI_LUT_VIEWER_H
 
#include "system/dtpthread.h"
#include "common/gui_module_api.h"
#include "develop/iop_profile.h"
 
#include <stddef.h>
#include <gtk/gtk.h>
 
typedef struct dt_lut_viewer_t dt_lut_viewer_t;
 
typedef struct dt_lut_viewer_control_node_t
{
  float input_rgb[3];
  float output_rgb[3];
} dt_lut_viewer_control_node_t;
 
dt_lut_viewer_t *dt_lut_viewer_new(dt_gui_module_t *module);
 
void dt_lut_viewer_destroy(dt_lut_viewer_t **viewer);
 
GtkWidget *dt_lut_viewer_get_widget(dt_lut_viewer_t *viewer);
 
void dt_lut_viewer_set_lut(dt_lut_viewer_t *viewer, const float *clut, uint16_t level,
                           dt_pthread_rwlock_t *clut_lock,
                           const dt_iop_order_iccprofile_info_t *lut_profile,
                           const dt_iop_order_iccprofile_info_t *display_profile);
 
void dt_lut_viewer_set_control_nodes(dt_lut_viewer_t *viewer,
                                     const dt_lut_viewer_control_node_t *control_nodes,
                                     size_t control_node_count);
 
void dt_lut_viewer_queue_draw(dt_lut_viewer_t *viewer);
#endif // DT_GUI_LUT_VIEWER_H