Grok 10.0.0
ht_block_encoding.hpp
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1// Copyright (c) 2019 - 2021, Osamu Watanabe
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28
29#pragma once
30#include <cstdint>
31
32#define MAX_Lcup 16834
33#define MAX_Scup 4079
34
35/********************************************************************************
36 * state_MS_enc: state class for MagSgn encoding
37 *******************************************************************************/
39 private:
40 int32_t pos; // current position in the buffer
41 uint8_t *const buf; // buffer for MagSgn
42#ifdef MSNAIVE
43 uint8_t bits;
44 uint8_t max;
45 uint8_t tmp;
46#else
47 uint64_t Creg; // temporal buffer to store up to 4 codewords
48 uint32_t ctreg; // number of used bits in Creg
49 uint8_t last; // last byte in the buffer
50 void emit_dword(); // internal function to emit 4 code words
51#endif
52
53 public:
54 explicit state_MS_enc(uint8_t *p)
55 : pos(0),
56 buf(p),
57#ifdef MSNAIVE
58 bits(0),
59 max(8),
60 tmp(0)
61#else
62 Creg(0),
63 ctreg(0),
64 last(0)
65#endif
66 {
67 }
68#ifdef MSNAIVE
69 void emitMagSgnBits(uint32_t cwd, uint8_t m_n);
70#else
71 void emitMagSgnBits(uint32_t cwd, uint8_t m_n, uint8_t emb_1);
72#endif
73 int32_t termMS();
74};
75
76class state_MEL_enc; // forward declaration for friend function "termMELandVLC()"
77/********************************************************************************
78 * state_VLC_enc: state classe for VLC encoding
79 *******************************************************************************/
81 private:
82 int32_t pos;
83 uint8_t bits;
84 uint8_t tmp;
85 uint8_t last;
86 uint8_t *const buf;
87
88 friend int32_t termMELandVLC(state_VLC_enc &, state_MEL_enc &);
89
90 public:
91 explicit state_VLC_enc(uint8_t *p) : pos(MAX_Scup - 2), bits(4), tmp(0xF), last(0xFF), buf(p) {
92 buf[pos + 1] = 0xFF;
93 }
94 void emitVLCBits(uint16_t cwd, uint8_t len);
95};
96
97/********************************************************************************
98 * state_MEL_enc: state class for MEL encoding
99 *******************************************************************************/
101 private:
102 int8_t MEL_k;
103 uint8_t MEL_run;
104 const uint8_t MEL_E[13];
105 uint8_t MEL_t;
106 int32_t pos;
107 uint8_t rem;
108 uint8_t tmp;
109 uint8_t *const buf;
110 void emitMELbit(uint8_t bit);
111
112 friend int32_t termMELandVLC(state_VLC_enc &, state_MEL_enc &);
113
114 public:
115 explicit state_MEL_enc(uint8_t *p)
116 : MEL_k(0),
117 MEL_run(0),
118 MEL_E{0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5},
119 MEL_t(1 << MEL_E[MEL_k]),
120 pos(0),
121 rem(8),
122 tmp(0),
123 buf(p) {}
124 void encodeMEL(uint8_t smel);
125 void termMEL();
126};
Definition: ht_block_encoding.hpp:100
int8_t MEL_k
Definition: ht_block_encoding.hpp:102
const uint8_t MEL_E[13]
Definition: ht_block_encoding.hpp:104
uint8_t *const buf
Definition: ht_block_encoding.hpp:109
int32_t pos
Definition: ht_block_encoding.hpp:106
uint8_t MEL_run
Definition: ht_block_encoding.hpp:103
uint8_t MEL_t
Definition: ht_block_encoding.hpp:105
friend int32_t termMELandVLC(state_VLC_enc &, state_MEL_enc &)
Definition: ht_block_encoding.cpp:394
void encodeMEL(uint8_t smel)
Definition: ht_block_encoding.cpp:238
uint8_t rem
Definition: ht_block_encoding.hpp:107
state_MEL_enc(uint8_t *p)
Definition: ht_block_encoding.hpp:115
void termMEL()
Definition: ht_block_encoding.cpp:268
void emitMELbit(uint8_t bit)
Definition: ht_block_encoding.cpp:227
uint8_t tmp
Definition: ht_block_encoding.hpp:108
Definition: ht_block_encoding.hpp:38
uint64_t Creg
Definition: ht_block_encoding.hpp:47
state_MS_enc(uint8_t *p)
Definition: ht_block_encoding.hpp:54
int32_t termMS()
Definition: ht_block_encoding.cpp:176
void emitMagSgnBits(uint32_t cwd, uint8_t m_n, uint8_t emb_1)
Definition: ht_block_encoding.cpp:151
uint8_t *const buf
Definition: ht_block_encoding.hpp:41
void emit_dword()
Definition: ht_block_encoding.cpp:160
uint8_t last
Definition: ht_block_encoding.hpp:49
uint32_t ctreg
Definition: ht_block_encoding.hpp:48
int32_t pos
Definition: ht_block_encoding.hpp:40
Definition: ht_block_encoding.hpp:80
int32_t pos
Definition: ht_block_encoding.hpp:82
uint8_t last
Definition: ht_block_encoding.hpp:85
uint8_t tmp
Definition: ht_block_encoding.hpp:84
friend int32_t termMELandVLC(state_VLC_enc &, state_MEL_enc &)
Definition: ht_block_encoding.cpp:394
state_VLC_enc(uint8_t *p)
Definition: ht_block_encoding.hpp:91
uint8_t bits
Definition: ht_block_encoding.hpp:83
uint8_t *const buf
Definition: ht_block_encoding.hpp:86
void emitVLCBits(uint16_t cwd, uint8_t len)
Definition: ht_block_encoding.cpp:277
#define MAX_Scup
Definition: ht_block_encoding.hpp:33