gimp/app/gegl/gimp-babl-compat.c

91 lines
2.4 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimp-babl-compat.h
* Copyright (C) 2012 Michael Natterer <mitch@gimp.org>
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include "gimp-gegl-types.h"
#include "gimp-babl.h"
#include "gimp-babl-compat.h"
GimpImageType
gimp_babl_format_get_image_type (const Babl *format)
{
const gchar *name;
g_return_val_if_fail (format != NULL, -1);
name = babl_get_name (babl_format_get_model (format));
if (! strcmp (name, "Y") ||
! strcmp (name, "Y'") ||
! strcmp (name, "Y~"))
{
return GIMP_GRAY_IMAGE;
}
else if (! strcmp (name, "YA") ||
! strcmp (name, "Y'A") ||
! strcmp (name, "Y~A"))
{
return GIMP_GRAYA_IMAGE;
}
else if (! strcmp (name, "RGB") ||
! strcmp (name, "R'G'B'") ||
! strcmp (name, "R~G~B~"))
{
return GIMP_RGB_IMAGE;
}
else if (! strcmp (name, "RGBA") ||
! strcmp (name, "R'G'B'A") ||
! strcmp (name, "R~G~B~A"))
{
return GIMP_RGBA_IMAGE;
}
else if (babl_format_is_palette (format))
{
if (babl_format_has_alpha (format))
return GIMP_INDEXEDA_IMAGE;
else
return GIMP_INDEXED_IMAGE;
}
g_return_val_if_reached (-1);
}
const Babl *
gimp_babl_compat_u8_format (const Babl *format)
{
g_return_val_if_fail (format != NULL, NULL);
/* indexed images only exist in u8, return the same format */
if (babl_format_is_palette (format))
return format;
return gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_U8_NON_LINEAR,
babl_format_has_alpha (format),
babl_format_get_space (format));
}