/*
    This file is part of darktable,
    Copyright (C) 2018-2023 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/>.
*/

/*
 * This is a dummy module intended only to be used in history so hist->module is not NULL
 * when the entry correspond to the mask manager
 *
 * It is always disabled and do not show in module list, only in history
 *
 * We start at version 2 so previous version of dt can add records in history with NULL params
 */

#include "common/imagebuf.h"
#include "develop/develop.h"

DT_MODULE_INTROSPECTION(2, dt_iop_mask_manager_params_t)

typedef struct dt_iop_mask_manager_params_t
{
  int dummy;
} dt_iop_mask_manager_params_t;

typedef struct dt_iop_mask_manager_params_t dt_iop_mask_manager_data_t;

const char *name()
{
  return _("mask manager");
}

int groups()
{
  return IOP_GROUP_BASIC | IOP_GROUP_TECHNICAL;
}

int flags()
{
  return IOP_FLAGS_HIDDEN | IOP_FLAGS_ONE_INSTANCE | IOP_FLAGS_UNSAFE_COPY;
}

dt_iop_colorspace_type_t default_colorspace(dt_iop_module_t *self,
                                            dt_dev_pixelpipe_t *pipe,
                                            dt_dev_pixelpipe_iop_t *piece)
{
  return IOP_CS_RGB;
}

int legacy_params(dt_iop_module_t *self,
                  const void *const old_params,
                  const int old_version,
                  void **new_params,
                  int32_t *new_params_size,
                  int *new_version)
{
  typedef struct dt_iop_mask_manager_params_v2_t
  {
    int dummy;
  } dt_iop_mask_manager_params_v2_t;

  if(old_version == 1)
  {
    dt_iop_mask_manager_params_v2_t *n = malloc(sizeof(dt_iop_mask_manager_params_v2_t));

    n->dummy = 0;

    *new_params = n;
    *new_params_size = sizeof(dt_iop_mask_manager_params_v2_t);
    *new_version = 2;
    return 0;
  }
  return 1;
}

void process(struct dt_iop_module_t *self, dt_dev_pixelpipe_iop_t *piece, const void *const i, void *const o,
             const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out)
{
  const int ch = piece->colors;
  dt_iop_image_copy_by_size(o, i, roi_out->width, roi_out->height, ch);
}

#ifdef HAVE_OPENCL
int process_cl(struct dt_iop_module_t *self, dt_dev_pixelpipe_iop_t *piece, cl_mem dev_in, cl_mem dev_out,
               const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out)
{
  const int devid = piece->pipe->devid;
  const int width = roi_in->width;
  const int height = roi_in->height;

  const size_t region[2] = { width, height };
  return dt_opencl_enqueue_copy_image(devid, dev_in, dev_out, CLIMG_ORIGIN, CLIMG_ORIGIN, region);
}
#endif

void commit_params(struct dt_iop_module_t *self, dt_iop_params_t *params, dt_dev_pixelpipe_t *pipe,
                   dt_dev_pixelpipe_iop_t *piece)
{
  memcpy(piece->data, params, sizeof(dt_iop_mask_manager_params_t));
}

void init_pipe(struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
{
  piece->data = malloc(sizeof(dt_iop_mask_manager_data_t));
}

void cleanup_pipe(struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
{
  free(piece->data);
  piece->data = NULL;
}


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