masks_distort.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 Ansel.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef DT_DEVELOP_MASKS_MASKS_DISTORT_H
#define DT_DEVELOP_MASKS_MASKS_DISTORT_H
 
#include <glib.h>
#include <stdint.h>
 
#include "develop/develop.h"
#include "develop/pixelpipe_hb.h"
 
typedef struct dt_masks_distort_t
{
  dt_dev_pixelpipe_t *pipe;
  dt_develop_t *dev;
 
  int32_t iwidth, iheight;
 
  int rasterization_step;
} dt_masks_distort_t;
 
static inline dt_masks_distort_t dt_masks_distort_for_pipe(dt_dev_pixelpipe_t *pipe, dt_develop_t *dev)
{
  dt_masks_distort_t d = { pipe, dev, 0, 0, 1 };
  if(!IS_NULL_PTR(pipe))
  {
    d.iwidth = pipe->iwidth;
    d.iheight = pipe->iheight;
    d.rasterization_step = pipe->mask_rasterization_step;
  }
  return d;
}
 
int dt_masks_gui_outline_step(const dt_develop_t *dev);
 
static inline dt_masks_distort_t dt_masks_distort_for_gui(dt_develop_t *dev)
{
  dt_masks_distort_t d = { NULL, dev, 0, 0, dt_masks_gui_outline_step(dev) };
  int32_t raw_width = 0;
  int32_t raw_height = 0;
  if(dt_dev_geometry_get_raw_size(dev, &raw_width, &raw_height))
  {
    d.iwidth = raw_width;
    d.iheight = raw_height;
  }
  return d;
}
 
static inline int dt_masks_distort_transform(const dt_masks_distort_t *const d, const double iop_order,
                                             const int transf_direction, float *points,
                                             size_t points_count)
{
  if(!IS_NULL_PTR(d->pipe))
    return dt_dev_distort_transform_plus(d->pipe, iop_order, transf_direction, points, points_count);
  return dt_dev_distort_transform_gui(d->dev, iop_order, transf_direction, points, points_count);
}
 
static inline int dt_masks_distort_backtransform(const dt_masks_distort_t *const d, const double iop_order,
                                                 const int transf_direction, float *points,
                                                 size_t points_count)
{
  if(!IS_NULL_PTR(d->pipe))
    return dt_dev_distort_backtransform_plus(d->pipe, iop_order, transf_direction, points, points_count);
  return dt_dev_distort_backtransform_gui(d->dev, iop_order, transf_direction, points, points_count);
}
 
#endif // DT_DEVELOP_MASKS_MASKS_DISTORT_H
 
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