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