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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2021 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "gdktexture.h"
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#include <gio/gio.h>
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#define TIFF_SIGNATURE1 "MM\x00\x2a"
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#define TIFF_SIGNATURE2 "II\x2a\x00"
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GdkTexture *gdk_load_tiff (GBytes *bytes,
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GError **error);
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GBytes * gdk_save_tiff (GdkTexture *texture);
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static inline gboolean
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gdk_is_tiff (GBytes *bytes)
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{
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const char *data;
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gsize size;
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data = g_bytes_get_data (bytes, &size);
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return (size > strlen (TIFF_SIGNATURE1) &&
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memcmp (data, TIFF_SIGNATURE1, strlen (TIFF_SIGNATURE1)) == 0) ||
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(size > strlen (TIFF_SIGNATURE2) &&
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memcmp (data, TIFF_SIGNATURE2, strlen (TIFF_SIGNATURE2)) == 0);
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}
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