1/*
2 * Copyright (c) 2012 Apple, Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24#ifndef CommonNumerics_basexx_h
25#define CommonNumerics_basexx_h
26
27#include <stdint.h>
28#include <stddef.h>
29#include <dispatch/dispatch.h>
30#include "CommonNumerics.h"
31#include "CommonBaseXX.h"
32
33typedef struct encoderConstants_t {
34    uint32_t    baseNum;
35    uint32_t    log;
36    uint32_t    inputBlocksize;
37    uint32_t    outputBlocksize;
38    uint8_t     basemask;
39} encoderConstants;
40
41typedef struct baseEncoder_t {
42    const char *name;
43    CNEncodings encoding;
44    const char *charMap;
45    const encoderConstants *values;
46    uint8_t baseNum;
47    uint8_t padding;
48} BaseEncoder;
49
50typedef BaseEncoder *BaseEncoderRefCustom;
51typedef const BaseEncoder *BaseEncoderRef;
52
53// This manages a global context for encoders.
54typedef struct coderFrame_t {
55    dispatch_once_t	encoderInit;
56    uint8_t *reverseMap;
57    BaseEncoderRef encoderRef;
58} BaseEncoderFrame, *CoderFrame;
59
60
61#endif
62