106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pika-babl-compat.h
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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 <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gegl.h>
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#include "pika-gegl-types.h"
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#include "pika-babl.h"
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#include "pika-babl-compat.h"
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PikaImageType
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pika_babl_format_get_image_type (const Babl *format)
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{
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const gchar *name;
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g_return_val_if_fail (format != NULL, -1);
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name = babl_get_name (babl_format_get_model (format));
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if (! strcmp (name, "Y") ||
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! strcmp (name, "Y'") ||
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! strcmp (name, "Y~"))
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{
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return PIKA_GRAY_IMAGE;
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}
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else if (! strcmp (name, "YA") ||
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! strcmp (name, "Y'A") ||
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! strcmp (name, "Y~A"))
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{
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return PIKA_GRAYA_IMAGE;
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}
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else if (! strcmp (name, "RGB") ||
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! strcmp (name, "R'G'B'") ||
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! strcmp (name, "R~G~B~"))
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{
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return PIKA_RGB_IMAGE;
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}
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else if (! strcmp (name, "RGBA") ||
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! strcmp (name, "R'G'B'A") ||
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! strcmp (name, "R~G~B~A"))
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{
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return PIKA_RGBA_IMAGE;
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}
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else if (babl_format_is_palette (format))
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{
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if (babl_format_has_alpha (format))
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return PIKA_INDEXEDA_IMAGE;
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else
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return PIKA_INDEXED_IMAGE;
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}
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g_return_val_if_reached (-1);
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}
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const Babl *
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pika_babl_compat_u8_format (const Babl *format)
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{
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g_return_val_if_fail (format != NULL, NULL);
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/* indexed images only exist in u8, return the same format */
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if (babl_format_is_palette (format))
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return format;
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return pika_babl_format (pika_babl_format_get_base_type (format),
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PIKA_PRECISION_U8_NON_LINEAR,
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babl_format_has_alpha (format),
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babl_format_get_space (format));
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}
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const Babl *
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pika_babl_compat_u8_mask_format (const Babl *format)
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{
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g_return_val_if_fail (format != NULL, NULL);
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return pika_babl_format (pika_babl_format_get_base_type (format),
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PIKA_PRECISION_U8_LINEAR,
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FALSE,
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NULL);
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}
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