gem5  v20.1.0.0
global.h
Go to the documentation of this file.
1 /*****************************************************************************
2 
3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
4  more contributor license agreements. See the NOTICE file distributed
5  with this work for additional information regarding copyright ownership.
6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
8  License. You may obtain a copy of the License at
9 
10  http://www.apache.org/licenses/LICENSE-2.0
11 
12  Unless required by applicable law or agreed to in writing, software
13  distributed under the License is distributed on an "AS IS" BASIS,
14  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
15  implied. See the License for the specific language governing
16  permissions and limitations under the License.
17 
18  *****************************************************************************/
19 
20 /*****************************************************************************
21 
22  global.h --
23 
24  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
25 
26  *****************************************************************************/
27 
28 /*****************************************************************************
29 
30  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
31  changes you are making here.
32 
33  Name, Affiliation, Date:
34  Description of Modification:
35 
36  *****************************************************************************/
37 
38 #ifndef GLOBALH
39 #define GLOBALH
40 
41 
42 // #include <iostream.h>
43 #include <stdio.h>
44 
45 #define MAXBUFLEN 64
46 
47 // cos constants, factor 512
48 #define c1d4 362L
49 #define c1d8 473L
50 #define c3d8 196L
51 #define c1d16 502L
52 #define c3d16 426L
53 #define c5d16 284L
54 #define c7d16 100L
55 
56 // correct digits
57 #define MSCALE(expr) (COEFF)((expr)>>9)
58 
59 typedef unsigned char BYTE;
60 typedef unsigned short WORD;
61 typedef unsigned long DWORD;
62 
63 typedef BYTE BLOCK[8][8];
64 typedef BYTE COMPRESSED[MAXBUFLEN];
65 typedef WORD MATRIX64x12[64];
66 
67 // type of the coefficient arrays
68 typedef short COEFF;
69 
70 // typedefs for huffman tables
71 typedef struct {
72  BYTE size;
73  WORD code;
74 } HUFFMTBL_ENTRY;
75 
76 
77 struct Block {
78  BYTE b[8][8];
79 
80  Block();
81  Block(BLOCK *);
82  Block(const Block&);
83  void operator=(const Block&);
84  int operator==(const Block&) const;
85 
86  BYTE get(int x, int y) const;
87  void put(int x, int y, BYTE val);
88  BLOCK* get_ptr() const;
89 };
90 
91 struct Compressed {
92  BYTE c[MAXBUFLEN];
93 
94  Compressed();
95  Compressed(const Compressed&);
96  void operator=(const Compressed&);
97  int operator==(const Compressed&) const;
98 
99  void clear();
100  BYTE get(int x) const;
101  void put(int x, BYTE val);
102 };
103 
104 struct Matrix64x12 {
105  WORD m[64];
106 
107  Matrix64x12();
108  Matrix64x12(const Matrix64x12&);
109  void operator=(const Matrix64x12&);
110  int operator==(const Matrix64x12&) const;
111 
112  WORD get(int x) const;
113  void put(int x, WORD val);
114 };
115 
116 struct Coeff8 {
117  COEFF c[8];
118 
119  Coeff8();
120  Coeff8(const Coeff8&);
121  void operator=(const Coeff8&);
122  int operator==(const Coeff8&) const;
123 
124  COEFF get(int x) const;
125  void put(int x, COEFF val);
126 };
127 
128 struct Coeff8x8 {
129  COEFF c[8][8];
130 
131  Coeff8x8();
132  Coeff8x8(const Coeff8x8&);
133  void operator=(const Coeff8x8&);
134  int operator==(const Coeff8x8&) const;
135 
136  COEFF get(int x, int y) const;
137  void put(int x, int y, COEFF val);
138 };
139 
140 inline
141 void
142 sc_trace( sc_trace_file*, const Coeff8x8&, const std::string& )
143 {
144  // NOT IMPLEMENTED
145 }
146 
147 
148 // quantization table 8-bit unsigned integer
149 static const unsigned char coeff_quant[8][8] = { // v is row
150  { 16, 11, 10, 16, 24, 40, 51, 61},
151  { 12, 12, 14, 19, 26, 58, 60, 55},
152  { 14, 13, 16, 24, 40, 57, 69, 56},
153  { 14, 17, 22, 29, 51, 87, 80, 82},
154  { 18, 22, 37, 56, 68, 109, 103, 77},
155  { 24, 35, 55, 64, 81, 104, 113, 92},
156  { 99, 64, 78, 87, 103, 121, 120, 101},
157  { 72, 92, 95, 98, 112, 100, 103, 99}
158 };
159 
160 
161 // table of Huffman DC coefficients
162 static const HUFFMTBL_ENTRY huffm_dc[12] = {
163  { 2, 0X0000 }, { 3, 0X0002 }, { 3, 0X0003 }, { 3, 0X0004 },
164  { 3, 0X0005 }, { 3, 0X0006 }, { 4, 0X000E }, { 5, 0X001E },
165  { 6, 0X003E }, { 7, 0X007E }, { 8, 0X00FE }, { 9, 0X01FE }
166 };
167 
168 
169 // table of Huffman AC coefficients
170 static const HUFFMTBL_ENTRY huffm_ac[256] = {
171  { 4, 0x000a }, { 2, 0x0000 }, { 2, 0x0001 }, { 3, 0x0004 },
172  { 4, 0x000b }, { 5, 0x001a }, { 7, 0x0078 }, { 8, 0x00f8 },
173  { 10, 0x03f6 }, { 16, 0xff82 }, { 16, 0xff83 }, { 0, 0x0000 },
174  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
175  { 0, 0x0000 }, { 4, 0x000c }, { 5, 0x001b }, { 7, 0x0079 },
176  { 9, 0x01f6 }, { 11, 0x07f6 }, { 16, 0xff84 }, { 16, 0xff85 },
177  { 16, 0xff86 }, { 16, 0xff87 }, { 16, 0xff88 }, { 0, 0x0000 },
178  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
179  { 0, 0x0000 }, { 5, 0x001c }, { 8, 0x00f9 }, { 10, 0x03f7 },
180  { 12, 0x0ff4 }, { 16, 0xff89 }, { 16, 0xff8a }, { 16, 0xff8b },
181  { 16, 0xff8c }, { 16, 0xff8d }, { 16, 0xff8e }, { 0, 0x0000 },
182  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
183  { 0, 0x0000 }, { 6, 0x003a }, { 9, 0x01f7 }, { 12, 0x0ff5 },
184  { 16, 0xff8f }, { 16, 0xff90 }, { 16, 0xff91 }, { 16, 0xff92 },
185  { 16, 0xff93 }, { 16, 0xff94 }, { 16, 0xff95 }, { 0, 0x0000 },
186  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
187  { 0, 0x0000 }, { 6, 0x003b }, { 10, 0x03f8 }, { 16, 0xff96 },
188  { 16, 0xff97 }, { 16, 0xff98 }, { 16, 0xff99 }, { 16, 0xff9a },
189  { 16, 0xff9b }, { 16, 0xff9c }, { 16, 0xff9d }, { 0, 0x0000 },
190  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
191  { 0, 0x0000 }, { 7, 0x007a }, { 11, 0x07f7 }, { 16, 0xff9e },
192  { 16, 0xff9f }, { 16, 0xffa0 }, { 16, 0xffa1 }, { 16, 0xffa2 },
193  { 16, 0xffa3 }, { 16, 0xffa4 }, { 16, 0xffa5 }, { 0, 0x0000 },
194  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
195  { 0, 0x0000 }, { 7, 0x007b }, { 12, 0x0ff6 }, { 16, 0xffa6 },
196  { 16, 0xffa7 }, { 16, 0xffa8 }, { 16, 0xffa9 }, { 16, 0xffaa },
197  { 16, 0xffab }, { 16, 0xffac }, { 16, 0xffad }, { 0, 0x0000 },
198  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
199  { 0, 0x0000 }, { 8, 0x00fa }, { 12, 0x0ff7 }, { 16, 0xffae },
200  { 16, 0xffaf }, { 16, 0xffb0 }, { 16, 0xffb1 }, { 16, 0xffb2 },
201  { 16, 0xffb3 }, { 16, 0xffb4 }, { 16, 0xffb5 }, { 0, 0x0000 },
202  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
203  { 0, 0x0000 }, { 9, 0x01f8 }, { 15, 0x7fc0 }, { 16, 0xffb6 },
204  { 16, 0xffb7 }, { 16, 0xffb8 }, { 16, 0xffb9 }, { 16, 0xffba },
205  { 16, 0xffbb }, { 16, 0xffbc }, { 16, 0xffbd }, { 0, 0x0000 },
206  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
207  { 0, 0x0000 }, { 9, 0x01f9 }, { 16, 0xffbe }, { 16, 0xffbf },
208  { 16, 0xffc0 }, { 16, 0xffc1 }, { 16, 0xffc2 }, { 16, 0xffc3 },
209  { 16, 0xffc4 }, { 16, 0xffc5 }, { 16, 0xffc6 }, { 0, 0x0000 },
210  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
211  { 0, 0x0000 }, { 9, 0x01fa }, { 16, 0xffc7 }, { 16, 0xffc8 },
212  { 16, 0xffc9 }, { 16, 0xffca }, { 16, 0xffcb }, { 16, 0xffcc },
213  { 16, 0xffcd }, { 16, 0xffce }, { 16, 0xffcf }, { 0, 0x0000 },
214  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
215  { 0, 0x0000 }, { 10, 0x03f9 }, { 16, 0xffd0 }, { 16, 0xffd1 },
216  { 16, 0xffd2 }, { 16, 0xffd3 }, { 16, 0xffd4 }, { 16, 0xffd5 },
217  { 16, 0xffd6 }, { 16, 0xffd7 }, { 16, 0xffd8 }, { 0, 0x0000 },
218  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
219  { 0, 0x0000 }, { 10, 0x03fa }, { 16, 0xffd9 }, { 16, 0xffda },
220  { 16, 0xffdb }, { 16, 0xffdc }, { 16, 0xffdd }, { 16, 0xffde },
221  { 16, 0xffdf }, { 16, 0xffe0 }, { 16, 0xffe1 }, { 0, 0x0000 },
222  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
223  { 0, 0x0000 }, { 11, 0x07f8 }, { 16, 0xffe2 }, { 16, 0xffe3 },
224  { 16, 0xffe4 }, { 16, 0xffe5 }, { 16, 0xffe6 }, { 16, 0xffe7 },
225  { 16, 0xffe8 }, { 16, 0xffe9 }, { 16, 0xffea }, { 0, 0x0000 },
226  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
227  { 0, 0x0000 }, { 16, 0xffeb }, { 16, 0xffec }, { 16, 0xffed },
228  { 16, 0xffee }, { 16, 0xffef }, { 16, 0xfff0 }, { 16, 0xfff1 },
229  { 16, 0xfff2 }, { 16, 0xfff3 }, { 16, 0xfff4 }, { 0, 0x0000 },
230  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 },
231  { 11, 0x07f9 }, { 16, 0xfff5 }, { 16, 0xfff6 }, { 16, 0xfff7 },
232  { 16, 0xfff8 }, { 16, 0xfff9 }, { 16, 0xfffa }, { 16, 0xfffb },
233  { 16, 0xfffc }, { 16, 0xfffd }, { 16, 0xfffe }, { 0, 0x0000 },
234  { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }, { 0, 0x0000 }
235  };
236 
237 
238 #endif
239 
Coeff8x8::c
COEFF c[8][8]
Definition: global.h:129
Compressed::put
void put(int x, BYTE val)
Block::operator=
void operator=(const Block &)
MATRIX64x12
WORD MATRIX64x12[64]
Definition: global.h:65
Compressed::operator=
void operator=(const Compressed &)
Coeff8::operator==
int operator==(const Coeff8 &) const
Coeff8::Coeff8
Coeff8()
Matrix64x12::Matrix64x12
Matrix64x12()
BYTE
unsigned char BYTE
Definition: global.h:59
MAXBUFLEN
#define MAXBUFLEN
Definition: global.h:45
HUFFMTBL_ENTRY
Definition: global.h:71
COEFF
short COEFF
Definition: global.h:68
huffm_dc
static const HUFFMTBL_ENTRY huffm_dc[12]
Definition: global.h:162
Coeff8x8::Coeff8x8
Coeff8x8()
Block::get_ptr
BLOCK * get_ptr() const
Coeff8::put
void put(int x, COEFF val)
Compressed::c
BYTE c[MAXBUFLEN]
Definition: global.h:92
Coeff8::operator=
void operator=(const Coeff8 &)
Coeff8x8::put
void put(int x, int y, COEFF val)
DWORD
unsigned long DWORD
Definition: global.h:61
Coeff8x8::operator=
void operator=(const Coeff8x8 &)
Coeff8x8::operator==
int operator==(const Coeff8x8 &) const
Matrix64x12::put
void put(int x, WORD val)
Block::operator==
int operator==(const Block &) const
Block
Definition: global.h:77
Block::put
void put(int x, int y, BYTE val)
RiscvISA::x
Bitfield< 3 > x
Definition: pagetable.hh:69
X86ISA::val
Bitfield< 63 > val
Definition: misc.hh:769
Compressed::operator==
int operator==(const Compressed &) const
sc_trace
void sc_trace(sc_trace_file *, const Coeff8x8 &, const std::string &)
Definition: global.h:142
Matrix64x12::m
WORD m[64]
Definition: global.h:105
Compressed::get
BYTE get(int x) const
Compressed::Compressed
Compressed()
Coeff8::get
COEFF get(int x) const
BLOCK
BYTE BLOCK[8][8]
Definition: global.h:63
Matrix64x12::operator==
int operator==(const Matrix64x12 &) const
Matrix64x12::get
WORD get(int x) const
Coeff8::c
COEFF c[8]
Definition: global.h:117
Block::b
BYTE b[8][8]
Definition: global.h:78
HUFFMTBL_ENTRY::code
WORD code
Definition: global.h:73
Compressed::clear
void clear()
Matrix64x12
Definition: global.h:104
coeff_quant
static const unsigned char coeff_quant[8][8]
Definition: global.h:149
HUFFMTBL_ENTRY::size
BYTE size
Definition: global.h:72
Block::Block
Block()
Matrix64x12::operator=
void operator=(const Matrix64x12 &)
Coeff8x8
Definition: global.h:128
Compressed
Definition: global.h:91
Coeff8
Definition: global.h:116
Coeff8x8::get
COEFF get(int x, int y) const
huffm_ac
static const HUFFMTBL_ENTRY huffm_ac[256]
Definition: global.h:170
Block::get
BYTE get(int x, int y) const
COMPRESSED
BYTE COMPRESSED[MAXBUFLEN]
Definition: global.h:64
WORD
unsigned short WORD
Definition: global.h:60
Generated on Wed Sep 30 2020 14:02:18 for gem5 by doxygen 1.8.17