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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:23:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:23:22 +0000
commite42129241681dde7adae7d20697e7b421682fbb4 (patch)
treeaf1fe815a5e639e68e59fabd8395ec69458b3e5e /plug-ins/file-jpeg/jpeg-icc.h
parentInitial commit. (diff)
downloadgimp-upstream.tar.xz
gimp-upstream.zip
Adding upstream version 2.10.22.upstream/2.10.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+/* jpeg-icc.h
+ *
+ * This code was originally copied from the jpegicc tool as found in
+ * the lcms source code. This code comes with the following copyright
+ * notice:
+ *
+ * Little cms
+ * Copyright (C) 1998-2004 Marti Maria
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ */
+
+#ifndef __JPEG_ICC_H__
+#define __JPEG_ICC_H__
+
+void jpeg_icc_write_profile (j_compress_ptr cinfo,
+ const guchar *icc_data_ptr,
+ guint icc_data_len);
+
+
+/*
+ * Reading a JPEG file that may contain an ICC profile requires two steps:
+ *
+ * 1. After jpeg_create_decompress() but before jpeg_read_header(),
+ * ask the IJG library to save in memory any APP2 markers it may find
+ * in the file.
+ *
+ * 2. After jpeg_read_header(), call jpeg_icc_read_profile() to find
+ * out whether there was a profile and obtain it if so.
+ *
+ * See if there was an ICC profile in the JPEG file being read;
+ * if so, reassemble and return the profile data.
+ *
+ * TRUE is returned if an ICC profile was found, FALSE if not.
+ * If TRUE is returned, *icc_data_ptr is set to point to the
+ * returned data, and *icc_data_len is set to its length.
+ *
+ * IMPORTANT: the data at **icc_data_ptr has been allocated with malloc()
+ * and must be freed by the caller with free() when the caller no longer
+ * needs it. (Alternatively, we could write this routine to use the
+ * IJG library's memory allocator, so that the data would be freed implicitly
+ * at jpeg_finish_decompress() time. But it seems likely that many apps
+ * will prefer to have the data stick around after decompression finishes.)
+ */
+
+gboolean jpeg_icc_read_profile (j_decompress_ptr cinfo,
+ guchar **icc_data_ptr,
+ guint *icc_data_len);
+
+#endif /* __JPEG_ICC_H__ */