2009-07-30 21:33:57 +02:00
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/*
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* Copyright (C) 2009 Red Hat, Inc.
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*
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* This is part of HarfBuzz, an OpenType Layout engine library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Red Hat Author(s): Behdad Esfahbod
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*/
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#ifndef HB_BLOB_H
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#define HB_BLOB_H
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#include "hb-common.h"
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HB_BEGIN_DECLS
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typedef enum {
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HB_MEMORY_MODE_DUPLICATE,
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HB_MEMORY_MODE_READONLY,
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HB_MEMORY_MODE_WRITEABLE,
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HB_MEMORY_MODE_READONLY_NEVER_DUPLICATE,
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HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITEABLE,
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} hb_memory_mode_t;
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2009-08-02 03:38:39 +02:00
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typedef struct _hb_blob_t hb_blob_t;
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2009-07-30 21:33:57 +02:00
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hb_blob_t *
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hb_blob_create (const char *data,
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unsigned int len,
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hb_memory_mode_t mode,
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hb_destroy_func_t destroy,
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void *user_data);
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hb_blob_t *
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hb_blob_reference (hb_blob_t *blob);
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2009-08-02 03:36:15 +02:00
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unsigned int
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hb_blob_get_reference_count (hb_blob_t *blob);
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2009-07-30 21:33:57 +02:00
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void
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hb_blob_destroy (hb_blob_t *blob);
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const char *
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hb_blob_get_data (hb_blob_t *blob,
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unsigned int *len);
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hb_bool_t
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hb_blob_is_writeable (hb_blob_t *blob);
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hb_bool_t
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hb_blob_try_writeable_inplace (hb_blob_t *blob);
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/* DANGER: May rebase or nullify */
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void
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hb_blob_make_writeable (hb_blob_t *blob);
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HB_END_DECLS
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#endif /* HB_BLOB_H */
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