mirror of https://github.com/GNOME/gimp.git
546 lines
15 KiB
C
546 lines
15 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimp-babl.c
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* Copyright (C) 2012 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include "gimp-gegl-types.h"
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#include "gimp-babl.h"
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#include "gimp-intl.h"
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void
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gimp_babl_init (void)
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{
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babl_format_new ("name", "R' u8",
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babl_model ("R'G'B'A"),
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babl_type ("u8"),
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babl_component ("R'"),
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NULL);
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babl_format_new ("name", "G' u8",
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babl_model ("R'G'B'A"),
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babl_type ("u8"),
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babl_component ("G'"),
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NULL);
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babl_format_new ("name", "B' u8",
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babl_model ("R'G'B'A"),
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babl_type ("u8"),
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babl_component ("B'"),
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NULL);
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babl_format_new ("name", "A u8",
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babl_model ("R'G'B'A"),
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babl_type ("u8"),
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babl_component ("A"),
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NULL);
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babl_format_new ("name", "R' u16",
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babl_model ("R'G'B'A"),
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babl_type ("u16"),
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babl_component ("R'"),
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NULL);
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babl_format_new ("name", "G' u16",
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babl_model ("R'G'B'A"),
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babl_type ("u16"),
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babl_component ("G'"),
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NULL);
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babl_format_new ("name", "B' u16",
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babl_model ("R'G'B'A"),
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babl_type ("u16"),
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babl_component ("B'"),
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NULL);
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babl_format_new ("name", "A u16",
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babl_model ("R'G'B'A"),
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babl_type ("u16"),
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babl_component ("A"),
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NULL);
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babl_format_new ("name", "R u32",
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babl_model ("RGBA"),
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babl_type ("u32"),
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babl_component ("R"),
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NULL);
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babl_format_new ("name", "G u32",
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babl_model ("RGBA"),
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babl_type ("u32"),
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babl_component ("G"),
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NULL);
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babl_format_new ("name", "B u32",
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babl_model ("RGBA"),
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babl_type ("u32"),
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babl_component ("B"),
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NULL);
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babl_format_new ("name", "A u32",
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babl_model ("RGBA"),
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babl_type ("u32"),
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babl_component ("A"),
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NULL);
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babl_format_new ("name", "R half",
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babl_model ("RGBA"),
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babl_type ("half"),
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babl_component ("R"),
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NULL);
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babl_format_new ("name", "G half",
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babl_model ("RGBA"),
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babl_type ("half"),
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babl_component ("G"),
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NULL);
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babl_format_new ("name", "B half",
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babl_model ("RGBA"),
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babl_type ("half"),
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babl_component ("B"),
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NULL);
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babl_format_new ("name", "A half",
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babl_model ("RGBA"),
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babl_type ("half"),
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babl_component ("A"),
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NULL);
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babl_format_new ("name", "R float",
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babl_model ("RGBA"),
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babl_type ("float"),
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babl_component ("R"),
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NULL);
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babl_format_new ("name", "G float",
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babl_model ("RGBA"),
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babl_type ("float"),
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babl_component ("G"),
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NULL);
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babl_format_new ("name", "B float",
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babl_model ("RGBA"),
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babl_type ("float"),
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babl_component ("B"),
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NULL);
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babl_format_new ("name", "A float",
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babl_model ("RGBA"),
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babl_type ("float"),
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babl_component ("A"),
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NULL);
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babl_format_new ("name", "A double",
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babl_model ("RGBA"),
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babl_type ("double"),
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babl_component ("A"),
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NULL);
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}
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static const struct
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{
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const gchar *name;
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const gchar *description;
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}
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babl_descriptions[] =
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{
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{ "R'G'B' u8", N_("RGB") },
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{ "R'G'B' u16", N_("RGB") },
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{ "RGB u32", N_("RGB") },
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{ "RGB half", N_("RGB") },
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{ "RGB float", N_("RGB") },
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{ "R'G'B'A u8", N_("RGB-alpha") },
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{ "R'G'B'A u16",N_("RGB-alpha") },
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{ "RGBA u32", N_("RGB-alpha") },
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{ "RGBA half", N_("RGB-alpha") },
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{ "RGBA float", N_("RGB-alpha") },
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{ "Y' u8", N_("Grayscale") },
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{ "Y u8", N_("Grayscale") },
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{ "Y' u16", N_("Grayscale") },
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{ "Y u16", N_("Grayscale") },
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{ "Y u32", N_("Grayscale") },
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{ "Y half", N_("Grayscale") },
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{ "Y float", N_("Grayscale") },
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{ "Y'A u8", N_("Grayscale-alpha") },
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{ "Y'A u16", N_("Grayscale-alpha") },
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{ "YA u32", N_("Grayscale-alpha") },
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{ "YA half", N_("Grayscale-alpha") },
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{ "YA float", N_("Grayscale-alpha") },
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{ "R' u8", N_("Red component") },
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{ "R' u16", N_("Red component") },
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{ "R u32", N_("Red component") },
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{ "R half", N_("Red component") },
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{ "R float", N_("Red component") },
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{ "G' u8", N_("Green component") },
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{ "G' u16", N_("Green component") },
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{ "G u32", N_("Green component") },
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{ "G half", N_("Green component") },
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{ "G float", N_("Green component") },
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{ "B' u8", N_("Blue component") },
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{ "B' u16", N_("Blue component") },
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{ "B u32", N_("Blue component") },
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{ "B half", N_("Blue component") },
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{ "B float", N_("Blue component") },
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{ "A u8", N_("Alpha component") },
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{ "A u16", N_("Alpha component") },
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{ "A u32", N_("Alpha component") },
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{ "A half", N_("Alpha component") },
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{ "A float", N_("Alpha component") },
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{ "A double", N_("Alpha component") }
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};
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static GHashTable *babl_description_hash = NULL;
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const gchar *
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gimp_babl_get_description (const Babl *babl)
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{
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const gchar *description;
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g_return_val_if_fail (babl != NULL, NULL);
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if (G_UNLIKELY (! babl_description_hash))
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{
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gint i;
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babl_description_hash = g_hash_table_new (g_str_hash,
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g_str_equal);
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for (i = 0; i < G_N_ELEMENTS (babl_descriptions); i++)
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g_hash_table_insert (babl_description_hash,
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(gpointer) babl_descriptions[i].name,
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gettext (babl_descriptions[i].description));
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}
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if (babl_format_is_palette (babl))
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{
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if (babl_format_has_alpha (babl))
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return _("Indexed-alpha");
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else
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return _("Indexed");
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}
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description = g_hash_table_lookup (babl_description_hash,
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babl_get_name (babl));
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if (description)
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return description;
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return g_strconcat ("ERROR: unknown Babl format ",
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babl_get_name (babl), NULL);
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}
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GimpImageBaseType
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gimp_babl_format_get_base_type (const Babl *format)
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{
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const Babl *model;
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g_return_val_if_fail (format != NULL, -1);
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model = babl_format_get_model (format);
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if (model == babl_model ("Y") ||
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model == babl_model ("Y'") ||
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model == babl_model ("YA") ||
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model == babl_model ("Y'A"))
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{
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return GIMP_GRAY;
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}
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else if (model == babl_model ("RGB") ||
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model == babl_model ("R'G'B'") ||
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model == babl_model ("RGBA") ||
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model == babl_model ("R'G'B'A"))
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{
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return GIMP_RGB;
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}
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else if (babl_format_is_palette (format))
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{
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return GIMP_INDEXED;
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}
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g_return_val_if_reached (-1);
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}
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GimpPrecision
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gimp_babl_format_get_precision (const Babl *format)
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{
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const Babl *type;
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g_return_val_if_fail (format != NULL, -1);
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type = babl_format_get_type (format, 0);
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if (type == babl_type ("u8"))
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return GIMP_PRECISION_U8;
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else if (type == babl_type ("u16"))
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return GIMP_PRECISION_U16;
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else if (type == babl_type ("u32"))
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return GIMP_PRECISION_U32;
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else if (type == babl_type ("half"))
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return GIMP_PRECISION_HALF;
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else if (type == babl_type ("float"))
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return GIMP_PRECISION_FLOAT;
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g_return_val_if_reached (-1);
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}
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const Babl *
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gimp_babl_format (GimpImageBaseType base_type,
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GimpPrecision precision,
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gboolean with_alpha)
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{
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switch (base_type)
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{
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case GIMP_RGB:
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switch (precision)
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{
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case GIMP_PRECISION_U8:
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if (with_alpha)
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return babl_format ("R'G'B'A u8");
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else
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return babl_format ("R'G'B' u8");
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case GIMP_PRECISION_U16:
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if (with_alpha)
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return babl_format ("R'G'B'A u16");
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else
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return babl_format ("R'G'B' u16");
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case GIMP_PRECISION_U32:
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if (with_alpha)
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return babl_format ("RGBA u32");
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else
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return babl_format ("RGB u32");
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case GIMP_PRECISION_HALF:
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if (with_alpha)
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return babl_format ("RGBA half");
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else
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return babl_format ("RGB half");
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case GIMP_PRECISION_FLOAT:
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if (with_alpha)
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return babl_format ("RGBA float");
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else
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return babl_format ("RGB float");
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default:
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break;
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}
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break;
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case GIMP_GRAY:
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switch (precision)
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{
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case GIMP_PRECISION_U8:
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if (with_alpha)
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return babl_format ("Y'A u8");
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else
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return babl_format ("Y' u8");
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case GIMP_PRECISION_U16:
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if (with_alpha)
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return babl_format ("Y'A u16");
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else
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return babl_format ("Y' u16");
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case GIMP_PRECISION_U32:
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if (with_alpha)
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return babl_format ("YA u32");
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else
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return babl_format ("Y u32");
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case GIMP_PRECISION_HALF:
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if (with_alpha)
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return babl_format ("YA half");
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else
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return babl_format ("Y half");
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case GIMP_PRECISION_FLOAT:
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if (with_alpha)
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return babl_format ("YA float");
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else
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return babl_format ("Y float");
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default:
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break;
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}
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break;
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case GIMP_INDEXED:
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/* need to use the image's api for this */
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break;
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}
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g_return_val_if_reached (NULL);
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}
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const Babl *
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gimp_babl_mask_format (GimpPrecision precision)
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{
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switch (precision)
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{
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case GIMP_PRECISION_U8: return babl_format ("Y u8");
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case GIMP_PRECISION_U16: return babl_format ("Y u16");
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case GIMP_PRECISION_U32: return babl_format ("Y u32");
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case GIMP_PRECISION_HALF: return babl_format ("Y half");
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case GIMP_PRECISION_FLOAT: return babl_format ("Y float");
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}
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g_return_val_if_reached (NULL);
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}
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const Babl *
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gimp_babl_component_format (GimpImageBaseType base_type,
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GimpPrecision precision,
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gint index)
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{
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switch (base_type)
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{
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case GIMP_RGB:
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switch (precision)
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{
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case GIMP_PRECISION_U8:
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switch (index)
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{
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case 0: return babl_format ("R' u8");
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case 1: return babl_format ("G' u8");
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case 2: return babl_format ("B' u8");
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case 3: return babl_format ("A u8");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_U16:
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switch (index)
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{
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case 0: return babl_format ("R' u16");
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case 1: return babl_format ("G' u16");
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case 2: return babl_format ("B' u16");
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case 3: return babl_format ("A u16");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_U32:
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switch (index)
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{
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case 0: return babl_format ("R u32");
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case 1: return babl_format ("G u32");
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case 2: return babl_format ("B u32");
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case 3: return babl_format ("A u32");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_HALF:
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switch (index)
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{
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case 0: return babl_format ("R half");
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case 1: return babl_format ("G half");
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case 2: return babl_format ("B half");
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case 3: return babl_format ("A half");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_FLOAT:
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switch (index)
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{
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case 0: return babl_format ("R float");
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case 1: return babl_format ("G float");
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case 2: return babl_format ("B float");
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case 3: return babl_format ("A float");
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default:
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break;
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}
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break;
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default:
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break;
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}
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break;
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case GIMP_GRAY:
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switch (precision)
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{
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case GIMP_PRECISION_U8:
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switch (index)
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{
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case 0: return babl_format ("Y' u8");
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case 1: return babl_format ("A u8");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_U16:
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switch (index)
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{
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case 0: return babl_format ("Y' u16");
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case 1: return babl_format ("A u16");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_U32:
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switch (index)
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{
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case 0: return babl_format ("Y u32");
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case 1: return babl_format ("A u32");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_HALF:
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switch (index)
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{
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case 0: return babl_format ("Y half");
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case 1: return babl_format ("A half");
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default:
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break;
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}
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break;
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case GIMP_PRECISION_FLOAT:
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switch (index)
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{
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case 0: return babl_format ("Y float");
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case 1: return babl_format ("A float");
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default:
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break;
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}
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break;
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default:
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break;
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}
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break;
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case GIMP_INDEXED:
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/* need to use the image's api for this */
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break;
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}
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g_return_val_if_reached (NULL);
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}
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