j2k.c

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/*
    This file is part of darktable,
    Copyright (C) 2012 Moritz Lipp.
    Copyright (C) 2012-2014, 2020-2021 Pascal Obry.
    Copyright (C) 2012-2017, 2019-2020 Tobias Ellinghaus.
    Copyright (C) 2013-2014 Jérémy Rosen.
    Copyright (C) 2013 Pascal de Bruijn.
    Copyright (C) 2013-2014, 2016 Roman Lebedev.
    Copyright (C) 2013 Simon Spannagel.
    Copyright (C) 2013 Thomas Pryds.
    Copyright (C) 2013 Ulrich Pegelow.
    Copyright (C) 2018 Heiko Bauke.
    Copyright (C) 2019, 2025 Aurélien PIERRE.
    Copyright (C) 2020 Diederik Ter Rahe.
    Copyright (C) 2020-2021 Hubert Kowalski.
    Copyright (C) 2020, 2022 Miloš Komarčević.
    Copyright (C) 2022 Martin Bařinka.
    
    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/>.
*/
 
// Original copyright notice from image_to_j2k.c from openjpeg:
/*
 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain
 *(UCL), Belgium
 * Copyright (c) 2002-2007, Professor Benoit Macq
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
 * Copyright (c) 2005, Herve Drolon, FreeImage Team
 * Copyright (c) 2006-2007, Parvatha Elangovan
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#include "bauhaus/bauhaus.h"
#include "common/darktable.h"
#include "common/exif.h"
#include "common/imageio.h"
#include "common/imageio_module.h"
#include "control/conf.h"
#include "imageio/format/imageio_format_api.h"
#include "gui/gtk.h"
 
#include <stdio.h>
#include <stdlib.h>
 
#if defined(__has_include)
#if __has_include(<openjpeg.h>)
#include <openjpeg.h>
#elif __has_include(<openjpeg-2.5/openjpeg.h>)
#include <openjpeg-2.5/openjpeg.h>
#elif __has_include(<openjpeg-2.1/openjpeg.h>)
#include <openjpeg-2.1/openjpeg.h>
#else
#error "openjpeg.h not found"
#endif
#else
#include <openjpeg.h>
#endif
 
typedef enum
{
  J2K_CFMT = 0,
  JP2_CFMT = 1
} dt_imageio_j2k_format_t;
 
// borrowed from blender
#define DOWNSAMPLE_FLOAT_TO_8BIT(_val) (_val) <= 0.0f ? 0 : ((_val) >= 1.0f ? 255 : (int)roundf(255.0f * (_val)))
#define DOWNSAMPLE_FLOAT_TO_12BIT(_val) (_val) <= 0.0f ? 0 : ((_val) >= 1.0f ? 4095 : (int)roundf(4095.0f * (_val)))
#define DOWNSAMPLE_FLOAT_TO_16BIT(_val)                                                                      \
  (_val) <= 0.0f ? 0 : ((_val) >= 1.0f ? 65535 : (int)roundf(65535.0f * (_val)))
 
DT_MODULE(2)
 
typedef enum
{
  DT_J2K_PRESET_OFF,
  DT_J2K_PRESET_CINEMA2K_24,
  DT_J2K_PRESET_CINEMA2K_48,
  DT_J2K_PRESET_CINEMA4K_24
} dt_imageio_j2k_preset_t;
 
typedef struct dt_imageio_j2k_t
{
  dt_imageio_module_data_t global;
  int bpp;
  dt_imageio_j2k_format_t format;
  dt_imageio_j2k_preset_t preset;
  int quality;
} dt_imageio_j2k_t;
 
typedef struct dt_imageio_j2k_gui_t
{
  GtkWidget *format;
  GtkWidget *preset;
  GtkWidget *quality;
} dt_imageio_j2k_gui_t;
 
void init(dt_imageio_module_format_t *self)
{
}
 
void cleanup(dt_imageio_module_format_t *self)
{
}
 
static void error_callback(const char *msg, void *client_data)
{
  FILE *stream = (FILE *)client_data;
  fprintf(stream, "[ERROR] %s", msg);
}
static void warning_callback(const char *msg, void *client_data)
{
  FILE *stream = (FILE *)client_data;
  fprintf(stream, "[WARNING] %s", msg);
}
static void info_callback(const char *msg, void *client_data)
{
  FILE *stream = (FILE *)client_data;
  fprintf(stream, "[INFO] %s", msg);
}
 
static int initialise_4K_poc(opj_poc_t *POC, int numres)
{
  POC[0].tile = 1;
  POC[0].resno0 = 0;
  POC[0].compno0 = 0;
  POC[0].layno1 = 1;
  POC[0].resno1 = numres - 1;
  POC[0].compno1 = 3;
  POC[0].prg1 = OPJ_CPRL;
  POC[1].tile = 1;
  POC[1].resno0 = numres - 1;
  POC[1].compno0 = 0;
  POC[1].layno1 = 1;
  POC[1].resno1 = numres;
  POC[1].compno1 = 3;
  POC[1].prg1 = OPJ_CPRL;
  return 2;
}
 
static void cinema_parameters(opj_cparameters_t *parameters)
{
  parameters->tile_size_on = 0;
  parameters->cp_tdx = 1;
  parameters->cp_tdy = 1;
 
  /*Tile part*/
  parameters->tp_flag = 'C';
  parameters->tp_on = 1;
 
  /*Tile and Image shall be at (0,0)*/
  parameters->cp_tx0 = 0;
  parameters->cp_ty0 = 0;
  parameters->image_offset_x0 = 0;
  parameters->image_offset_y0 = 0;
 
  /*Codeblock size= 32*32*/
  parameters->cblockw_init = 32;
  parameters->cblockh_init = 32;
  parameters->csty |= 0x01;
 
  /*The progression order shall be CPRL*/
  parameters->prog_order = OPJ_CPRL;
 
  /* No ROI */
  parameters->roi_compno = -1;
 
  parameters->subsampling_dx = 1;
  parameters->subsampling_dy = 1;
 
  /* 9-7 transform */
  parameters->irreversible = 1;
}
 
static void cinema_setup_encoder(opj_cparameters_t *parameters, opj_image_t *image, float *rates)
{
  int i;
  float temp_rate;
 
  switch(parameters->cp_cinema)
  {
    case OPJ_CINEMA2K_24:
    case OPJ_CINEMA2K_48:
      parameters->cp_rsiz = OPJ_CINEMA2K;
      if(parameters->numresolution > 6)
      {
        parameters->numresolution = 6;
      }
      if(!((image->comps[0].w == 2048) | (image->comps[0].h == 1080)))
      {
        fprintf(stdout,
                "Image coordinates %d x %d is not 2K compliant.\nJPEG Digital Cinema Profile-3 "
                "(2K profile) compliance requires that at least one of coordinates match 2048 x 1080\n",
                image->comps[0].w, image->comps[0].h);
        parameters->cp_rsiz = OPJ_STD_RSIZ;
      }
      break;
 
    case OPJ_CINEMA4K_24:
      parameters->cp_rsiz = OPJ_CINEMA4K;
      if(parameters->numresolution < 1)
      {
        parameters->numresolution = 1;
      }
      else if(parameters->numresolution > 7)
      {
        parameters->numresolution = 7;
      }
      if(!((image->comps[0].w == 4096) | (image->comps[0].h == 2160)))
      {
        fprintf(stdout,
                "Image coordinates %d x %d is not 4K compliant.\nJPEG Digital Cinema Profile-4"
                "(4K profile) compliance requires that at least one of coordinates match 4096 x 2160\n",
                image->comps[0].w, image->comps[0].h);
        parameters->cp_rsiz = OPJ_STD_RSIZ;
      }
      parameters->numpocs = initialise_4K_poc(parameters->POC, parameters->numresolution);
      break;
    default:
      break;
  }
 
  switch(parameters->cp_cinema)
  {
    case OPJ_CINEMA2K_24:
    case OPJ_CINEMA4K_24:
      for(i = 0; i < parameters->tcp_numlayers; i++)
      {
        if(rates[i] == 0)
        {
          parameters->tcp_rates[0]
              = ((float)(image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))
                / (OPJ_CINEMA_24_CS * 8 * image->comps[0].dx * image->comps[0].dy);
        }
        else
        {
          temp_rate
              = ((float)(image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))
                / (rates[i] * 8 * image->comps[0].dx * image->comps[0].dy);
          if(temp_rate > OPJ_CINEMA_24_CS)
          {
            parameters->tcp_rates[i]
                = ((float)(image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))
                  / (OPJ_CINEMA_24_CS * 8 * image->comps[0].dx * image->comps[0].dy);
          }
          else
          {
            parameters->tcp_rates[i] = rates[i];
          }
        }
      }
      parameters->max_comp_size = OPJ_CINEMA_24_COMP;
      break;
 
    case OPJ_CINEMA2K_48:
      for(i = 0; i < parameters->tcp_numlayers; i++)
      {
        if(rates[i] == 0)
        {
          parameters->tcp_rates[0]
              = ((float)(image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))
                / (OPJ_CINEMA_48_CS * 8 * image->comps[0].dx * image->comps[0].dy);
        }
        else
        {
          temp_rate
              = ((float)(image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))
                / (rates[i] * 8 * image->comps[0].dx * image->comps[0].dy);
          if(temp_rate > OPJ_CINEMA_48_CS)
          {
            parameters->tcp_rates[0]
                = ((float)(image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))
                  / (OPJ_CINEMA_48_CS * 8 * image->comps[0].dx * image->comps[0].dy);
          }
          else
          {
            parameters->tcp_rates[i] = rates[i];
          }
        }
      }
      parameters->max_comp_size = OPJ_CINEMA_48_COMP;
      break;
    default:
      break;
  }
  parameters->cp_disto_alloc = 1;
}
 
int write_image(dt_imageio_module_data_t *j2k_tmp, const char *filename, const void *in_tmp,
                dt_colorspaces_color_profile_type_t over_type, const char *over_filename,
                void *exif, int exif_len, int32_t imgid, int num, int total, struct dt_dev_pixelpipe_t *pipe,
                const gboolean export_masks)
{
  int rc = 1;
  const float *in = (const float *)in_tmp;
  dt_imageio_j2k_t *j2k = (dt_imageio_j2k_t *)j2k_tmp;
  opj_cparameters_t parameters; /* compression parameters */
  float *rates = NULL;
  opj_image_t *image = NULL;
  const int quality = CLAMP(j2k->quality, 1, 100);
 
  /* set encoding parameters to default values */
  opj_set_default_encoder_parameters(&parameters);
 
  /* compression ratio */
  /* invert range, from 10-100, 100-1
  * where jpeg see's 1 and highest quality (lossless) and 100 is very low quality*/
  parameters.tcp_rates[0] = 100 - quality + 1;
 
  parameters.tcp_numlayers = 1; /* only one resolution */
  parameters.cp_disto_alloc = 1;
  parameters.cp_rsiz = OPJ_STD_RSIZ;
 
  parameters.cod_format = j2k->format;
  parameters.cp_cinema = (OPJ_CINEMA_MODE)j2k->preset;
 
  if(parameters.cp_cinema)
  {
    rates = (float *)calloc(parameters.tcp_numlayers, sizeof(float));
    for(int i = 0; i < parameters.tcp_numlayers; i++)
    {
      rates[i] = parameters.tcp_rates[i];
    }
    cinema_parameters(&parameters);
  }
 
  /* Create comment for codestream */
  parameters.cp_comment = g_strdup_printf("Created by %s", darktable_package_string);
 
  /*Converting the image to a format suitable for encoding*/
  {
    const int subsampling_dx = parameters.subsampling_dx;
    const int subsampling_dy = parameters.subsampling_dy;
    const int numcomps = 3;
    const int prec = 12; // TODO: allow other bitdepths!
    const int w = j2k->global.width, h = j2k->global.height;
 
    opj_image_cmptparm_t cmptparm[4]; /* RGBA: max. 4 components */
    memset(&cmptparm[0], 0, sizeof(opj_image_cmptparm_t) * numcomps);
 
    for(int i = 0; i < numcomps; i++)
    {
      cmptparm[i].prec = prec;
      cmptparm[i].sgnd = 0;
      cmptparm[i].dx = subsampling_dx;
      cmptparm[i].dy = subsampling_dy;
      cmptparm[i].w = w;
      cmptparm[i].h = h;
    }
    image = opj_image_create(numcomps, &cmptparm[0], OPJ_CLRSPC_SRGB);
    if(IS_NULL_PTR(image))
    {
      fprintf(stderr, "Error: opj_image_create() failed\n");
      dt_free(rates);
      rc = 0;
      goto exit;
    }
 
    /* set image offset and reference grid */
    image->x0 = parameters.image_offset_x0;
    image->y0 = parameters.image_offset_y0;
    image->x1 = parameters.image_offset_x0 + (w - 1) * subsampling_dx + 1;
    image->y1 = parameters.image_offset_y0 + (h - 1) * subsampling_dy + 1;
 
    switch(prec)
    {
//      case 8:
//        for(int i = 0; i < w * h; i++)
//        {
//          for(int k = 0; k < numcomps; k++) image->comps[k].data[i] = DOWNSAMPLE_FLOAT_TO_8BIT(in[i * 4 + k]);
//        }
//        break;
      case 12:
        for(int i = 0; i < w * h; i++)
        {
          for(int k = 0; k < numcomps; k++)
            image->comps[k].data[i] = DOWNSAMPLE_FLOAT_TO_12BIT(in[i * 4 + k]);
        }
        break;
//      case 16:
//        for(int i = 0; i < w * h; i++)
//        {
//          for(int k = 0; k < numcomps; k++)
//            image->comps[k].data[i] = DOWNSAMPLE_FLOAT_TO_16BIT(in[i * 4 + k]);
//        }
//        break;
//      default:
//        fprintf(stderr, "Error: this shouldn't happen, there is no bit depth of %d for jpeg 2000 images.\n",
//                prec);
//        g_free(rates);
//        opj_image_destroy(image);
//        return 1;
    }
  }
 
  /*Encoding image*/
 
  /* Decide if MCT should be used */
  parameters.tcp_mct = image->numcomps == 3 ? 1 : 0;
 
  if(parameters.cp_cinema)
  {
    cinema_setup_encoder(&parameters, image, rates);
    dt_free(rates);
  }
 
  /* encode the destination image */
  /* ---------------------------- */
  OPJ_CODEC_FORMAT codec;
  if(parameters.cod_format == J2K_CFMT) /* J2K format output */
    codec = OPJ_CODEC_J2K;
  else
    codec = OPJ_CODEC_JP2;
 
  opj_stream_t *cstream = NULL;
 
  /* get a J2K/JP2 compressor handle */
  opj_codec_t *ccodec = opj_create_compress(codec);
 
  opj_set_error_handler(ccodec, error_callback, stderr);
  opj_set_warning_handler(ccodec, warning_callback, stderr);
  opj_set_info_handler(ccodec, info_callback, stderr);
 
  g_strlcpy(parameters.outfile, filename, sizeof(parameters.outfile));
 
  /* setup the encoder parameters using the current image and user parameters */
  opj_setup_encoder(ccodec, &parameters, image);
 
  /* open a byte stream for writing */
  /* allocate memory for all tiles */
  cstream = opj_stream_create_default_file_stream(parameters.outfile, OPJ_FALSE);
  if(IS_NULL_PTR(cstream))
  {
    opj_destroy_codec(ccodec);
    opj_image_destroy(image);
    fprintf(stderr, "failed to create output stream\n");
    rc = 0;
    goto exit;
  }
 
  if(!opj_start_compress(ccodec, image, cstream))
  {
    opj_stream_destroy(cstream);
    opj_destroy_codec(ccodec);
    opj_image_destroy(image);
    fprintf(stderr, "failed to encode image: opj_start_compress\n");
    rc = 0;
    goto exit;
  }
 
  /* encode the image */
  if(!opj_encode(ccodec, cstream))
  {
    opj_stream_destroy(cstream);
    opj_destroy_codec(ccodec);
    opj_image_destroy(image);
    fprintf(stderr, "failed to encode image: opj_encode\n");
    rc = 0;
    goto exit;
  }
 
  /* encode the image */
  if(!opj_end_compress(ccodec, cstream))
  {
    opj_stream_destroy(cstream);
    opj_destroy_codec(ccodec);
    opj_image_destroy(image);
    fprintf(stderr, "failed to encode image: opj_end_compress\n");
    rc = 0;
    goto exit;
  }
 
  opj_stream_destroy(cstream);
  opj_destroy_codec(ccodec);
 
  /* add exif data blob. seems to not work for j2k files :( */
  if(exif && j2k->format == JP2_CFMT) rc = dt_exif_write_blob(exif, exif_len, filename, 1);
 
  /* free image data */
  opj_image_destroy(image);
 
exit:
  /* free user parameters structure */
  dt_free(parameters.cp_comment);
  dt_free(parameters.cp_matrice);
  dt_free(parameters.mct_data);
 
  return ((rc == 1) ? 0 : 1);
}
 
size_t params_size(dt_imageio_module_format_t *self)
{
  return sizeof(dt_imageio_j2k_t);
}
 
void *legacy_params(dt_imageio_module_format_t *self, const void *const old_params,
                    const size_t old_params_size, const int old_version, const int new_version,
                    size_t *new_size)
{
  if(old_version == 1 && new_version == 2)
  {
    typedef struct dt_imageio_j2k_v1_t
    {
      int max_width, max_height;
      int width, height;
      char style[128];
      int bpp;
      dt_imageio_j2k_format_t format;
      dt_imageio_j2k_preset_t preset;
      int quality;
    } dt_imageio_j2k_v1_t;
 
    dt_imageio_j2k_v1_t *o = (dt_imageio_j2k_v1_t *)old_params;
    dt_imageio_j2k_t *n = (dt_imageio_j2k_t *)malloc(sizeof(dt_imageio_j2k_t));
 
    n->global.max_width = o->max_width;
    n->global.max_height = o->max_height;
    n->global.width = o->width;
    n->global.height = o->height;
    g_strlcpy(n->global.style, o->style, sizeof(o->style));
    n->bpp = o->bpp;
    n->format = o->format;
    n->preset = o->preset;
    n->quality = o->quality;
    *new_size = self->params_size(self);
    return n;
  }
  return NULL;
}
 
void *get_params(dt_imageio_module_format_t *self)
{
  dt_imageio_j2k_t *d = (dt_imageio_j2k_t *)calloc(1, sizeof(dt_imageio_j2k_t));
  d->bpp = 16; // can be 8, 12 or 16
  d->format = dt_conf_get_int("plugins/imageio/format/j2k/format");
  d->preset = dt_conf_get_int("plugins/imageio/format/j2k/preset");
  d->quality = dt_conf_get_int("plugins/imageio/format/j2k/quality");
  if(d->quality <= 0 || d->quality > 100) d->quality = 100;
  return d;
}
 
void free_params(dt_imageio_module_format_t *self, dt_imageio_module_data_t *params)
{
  dt_free(params);
}
 
int set_params(dt_imageio_module_format_t *self, const void *params, const int size)
{
  if(size != self->params_size(self)) return 1;
  dt_imageio_j2k_t *d = (dt_imageio_j2k_t *)params;
  dt_imageio_j2k_gui_t *g = (dt_imageio_j2k_gui_t *)self->gui_data;
  dt_bauhaus_combobox_set(g->format, d->format);
  dt_bauhaus_combobox_set(g->preset, d->preset);
  dt_bauhaus_slider_set(g->quality, d->quality);
  return 0;
}
 
int bpp(dt_imageio_module_data_t *p)
{
  return 32;
}
 
int levels(dt_imageio_module_data_t *p)
{
  // TODO: adapt as soon as this module supports various bitdepths
  return IMAGEIO_RGB | IMAGEIO_INT12;
}
 
const char *mime(dt_imageio_module_data_t *data)
{
  return "image/jp2";
}
 
const char *extension(dt_imageio_module_data_t *data_tmp)
{
  const dt_imageio_j2k_t *data = (dt_imageio_j2k_t *)data_tmp;
  if(data->format == J2K_CFMT)
    return "j2k";
  else
    return "jp2";
}
 
const char *name()
{
  return _("JPEG 2000 (12-bit)");
}
 
static void preset_changed(GtkWidget *widget, gpointer user_data)
{
  const int preset = dt_bauhaus_combobox_get(widget);
  dt_conf_set_int("plugins/imageio/format/j2k/preset", preset);
}
 
static void format_changed(GtkWidget *widget, gpointer user_data)
{
  const int format = dt_bauhaus_combobox_get(widget);
  dt_conf_set_int("plugins/imageio/format/j2k/format", format);
}
 
static void quality_changed(GtkWidget *slider, gpointer user_data)
{
  int quality = (int)dt_bauhaus_slider_get(slider);
  dt_conf_set_int("plugins/imageio/format/j2k/quality", quality);
}
 
// TODO: some quality/compression stuff in case "off" is selected
void gui_init(dt_imageio_module_format_t *self)
{
  dt_imageio_j2k_gui_t *gui = (dt_imageio_j2k_gui_t *)malloc(sizeof(dt_imageio_j2k_gui_t));
  self->gui_data = (void *)gui;
  self->widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, DT_GUI_BOX_SPACING);
 
  const int format_last = dt_conf_get_int("plugins/imageio/format/j2k/format");
  const int preset_last = dt_conf_get_int("plugins/imageio/format/j2k/preset");
  const int quality_last = dt_conf_get_int("plugins/imageio/format/j2k/quality");
 
  gui->format = dt_bauhaus_combobox_new(darktable.bauhaus, DT_GUI_MODULE(NULL));
  dt_bauhaus_widget_set_label(gui->format, N_("format"));
  dt_bauhaus_combobox_add(gui->format, _("J2K"));
  dt_bauhaus_combobox_add(gui->format, _("jp2"));
  dt_bauhaus_combobox_set(gui->format, format_last);
  gtk_box_pack_start(GTK_BOX(self->widget), gui->format, TRUE, TRUE, 0);
  g_signal_connect(G_OBJECT(gui->format), "value-changed", G_CALLBACK(format_changed), NULL);
 
  gui->quality = dt_bauhaus_slider_new_with_range(darktable.bauhaus, DT_GUI_MODULE(NULL),
                                                  dt_confgen_get_int("plugins/imageio/format/j2k/quality", DT_MIN),
                                                  dt_confgen_get_int("plugins/imageio/format/j2k/quality", DT_MAX),
                                                  1,
                                                  dt_confgen_get_int("plugins/imageio/format/j2k/quality", DT_DEFAULT),
                                                  0);
  dt_bauhaus_widget_set_label(gui->quality, N_("quality"));
  dt_bauhaus_slider_set_default(gui->quality, dt_confgen_get_int("plugins/imageio/format/j2k/quality", DT_DEFAULT));
  if(quality_last > 0 && quality_last <= 100) dt_bauhaus_slider_set(gui->quality, quality_last);
  gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(gui->quality), TRUE, TRUE, 0);
  g_signal_connect(G_OBJECT(gui->quality), "value-changed", G_CALLBACK(quality_changed), NULL);
 
  gui->preset = dt_bauhaus_combobox_new(darktable.bauhaus, DT_GUI_MODULE(NULL));
  dt_bauhaus_widget_set_label(gui->preset, N_("DCP mode"));
  dt_bauhaus_combobox_add(gui->preset, _("off"));
  dt_bauhaus_combobox_add(gui->preset, _("Cinema2K, 24FPS"));
  dt_bauhaus_combobox_add(gui->preset, _("Cinema2K, 48FPS"));
  dt_bauhaus_combobox_add(gui->preset, _("Cinema4K, 24FPS"));
  dt_bauhaus_combobox_set(gui->preset, preset_last);
  gtk_box_pack_start(GTK_BOX(self->widget), gui->preset, TRUE, TRUE, 0);
  g_signal_connect(G_OBJECT(gui->preset), "value-changed", G_CALLBACK(preset_changed), NULL);
 
  // TODO: options for "off"
}
 
void gui_cleanup(dt_imageio_module_format_t *self)
{
  dt_free(self->gui_data);
}
 
void gui_reset(dt_imageio_module_format_t *self)
{
  const int format_def = dt_confgen_get_int("plugins/imageio/format/j2k/format", DT_DEFAULT);
  const int preset_def = dt_confgen_get_int("plugins/imageio/format/j2k/preset", DT_DEFAULT);
  const int quality_def = dt_confgen_get_int("plugins/imageio/format/j2k/quality", DT_DEFAULT);
  dt_imageio_j2k_gui_t *gui = (dt_imageio_j2k_gui_t *)self->gui_data;
  dt_bauhaus_combobox_set(gui->format, format_def);
  dt_bauhaus_combobox_set(gui->preset, preset_def);
  dt_bauhaus_combobox_set(gui->quality, quality_def);
}
 
int flags(dt_imageio_module_data_t *data)
{
  dt_imageio_j2k_t *j = (dt_imageio_j2k_t *)data;
  return ((j && j->format == JP2_CFMT) ? FORMAT_FLAGS_SUPPORT_XMP : 0);
}
 
// clang-format off
// modelines: These editor modelines have been set for all relevant files by tools/update_modelines.py
// vim: shiftwidth=2 expandtab tabstop=2 cindent
// kate: tab-indents: off; indent-width 2; replace-tabs on; indent-mode cstyle; remove-trailing-spaces modified;
// clang-format on