imageio_format_api.h

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/*
    This file is part of darktable,
    Copyright (C) 2016-2021 darktable developers.
 
    darktable is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
    along with darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#include "common/module_api.h"
 
#ifdef FULL_API_H
 
#include <stddef.h>
#include <stdint.h>
 
#include "common/colorspaces.h" // because forward declaring enums doesn't work in C++ :(
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct dt_imageio_module_format_t;
struct dt_imageio_module_data_t;
struct dt_dev_pixelpipe_t;
 
/* early definition of modules to do type checking */
 
#pragma GCC visibility push(default)
 
#endif // FULL_API_H
 
// gui and management:
/* get translated module name */
REQUIRED(const char *, name,);
/* construct widget above */
OPTIONAL(void, gui_init, struct dt_imageio_module_format_t *self);
/* destroy resources */
REQUIRED(void, gui_cleanup, struct dt_imageio_module_format_t *self);
/* reset options to defaults */
REQUIRED(void, gui_reset, struct dt_imageio_module_format_t *self);
 
/* construct widget above */
REQUIRED(void, init, struct dt_imageio_module_format_t *self);
/* construct widget above */
REQUIRED(void, cleanup, struct dt_imageio_module_format_t *self);
 
/* gets the current export parameters from gui/conf and stores in this struct for later use. */
OPTIONAL(void *, legacy_params, struct 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);
REQUIRED(size_t, params_size, struct dt_imageio_module_format_t *self);
REQUIRED(void *, get_params, struct dt_imageio_module_format_t *self);
REQUIRED(void, free_params, struct dt_imageio_module_format_t *self, struct dt_imageio_module_data_t *data);
/* resets the gui to the parameters as given here. return != 0 on fail. */
REQUIRED(int, set_params, struct dt_imageio_module_format_t *self, const void *params, const int size);
 
/* returns the mime type of the exported image. */
REQUIRED(const char *, mime, struct dt_imageio_module_data_t *data);
/* this extension (plus dot) is appended to the exported filename. */
REQUIRED(const char *, extension, struct dt_imageio_module_data_t *data);
/* get storage max supported image dimension, return 0 if no dimension restrictions exists. */
OPTIONAL(int, dimension, struct dt_imageio_module_format_t *self, struct dt_imageio_module_data_t *data, uint32_t *width,
                         uint32_t *height);
 
// writing functions:
/* bits per pixel and color channel we want to write: 8: char x3, 16: uint16_t x3, 32: float x3. */
REQUIRED(int, bpp, struct dt_imageio_module_data_t *data);
/* write to file, with exif if not NULL, and icc profile if supported. */
REQUIRED(int, write_image, struct dt_imageio_module_data_t *data, const char *filename, const void *in,
                           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);
/* flag that describes the available precision/levels of output format. mainly used for dithering. */
OPTIONAL(int, levels, struct dt_imageio_module_data_t *data);
 
// sometimes we want to tell the world about what we can do
OPTIONAL(int, flags, struct dt_imageio_module_data_t *data);
 
OPTIONAL(int, read_image, struct dt_imageio_module_data_t *data, uint8_t *out);
 
#ifdef FULL_API_H
 
#pragma GCC visibility pop
 
#ifdef __cplusplus
}
#endif
 
#endif // FULL_API_H
 
// 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