| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // 27 //
28 // 28 //
29 // 29 //
30 30
31 #include <string.h> 31 #include <string.h>
32 #include "G4RTJpeg.hh" 32 #include "G4RTJpeg.hh"
33 #include "G4RTOutBitStream.hh" 33 #include "G4RTOutBitStream.hh"
34 34
35 35
36 36
37 G4OutBitStream::G4OutBitStream(int size) 37 G4OutBitStream::G4OutBitStream(int size)
38 { 38 {
39 if(size < 1) 39 if(size < 1)
40 throw( G4MemoryError( size, "G4OutBitS 40 throw( G4MemoryError( size, "G4OutBitStream" ) );
41 41
42 mHeadOfBuf = mBuf = new u_char[size]; 42 mHeadOfBuf = mBuf = new u_char[size];
43 if( mHeadOfBuf == 0 ) 43 if( mHeadOfBuf == 0 )
44 throw( G4MemoryError( size, "G4OutBitS 44 throw( G4MemoryError( size, "G4OutBitStream" ) );
45 45
46 mEndOfBuf = mBuf + size; 46 mEndOfBuf = mBuf + size;
47 47
48 memset( mHeadOfBuf, 0, size ); 48 memset( mHeadOfBuf, 0, size );
49 49
50 mBitPos = 7; 50 mBitPos = 7;
51 mWriteFlag = 1; 51 mWriteFlag = 1;
52 } 52 }
53 53
54 G4OutBitStream::~G4OutBitStream() 54 G4OutBitStream::~G4OutBitStream()
55 { 55 {
56 delete mBuf; 56 delete mBuf;
57 } 57 }
58 58
59 void 59 void
60 G4OutBitStream::IncBuf( void ) 60 G4OutBitStream::IncBuf( void )
61 { 61 {
62 if( ++mBuf >= mEndOfBuf ) 62 if( ++mBuf >= mEndOfBuf )
63 mWriteFlag = 0; 63 mWriteFlag = 0;
64 } 64 }
65 65
66 66
67 67
68 void 68 void
69 G4OutBitStream::SetBits(int v, int numBits) 69 G4OutBitStream::SetBits(int v, int numBits)
70 { 70 {
71 if( numBits == 0 ) 71 if( numBits == 0 )
72 return; 72 return;
73 if( numBits > 16 ) 73 if( numBits > 16 )
74 throw( G4BufferError( "SetBits:Max Bit 74 throw( G4BufferError( "SetBits:Max Bit Over" ) );
75 if( numBits > 8 ){ 75 if( numBits > 8 ){
76 Set8Bits( u_char(v>>8), numBits-8 ); 76 Set8Bits( u_char(v>>8), numBits-8 );
77 numBits = 8; 77 numBits = 8;
78 } 78 }
79 Set8Bits( u_char(v), numBits ); 79 Set8Bits( u_char(v), numBits );
80 } 80 }
81 81
82 void 82 void
83 G4OutBitStream::SetFewBits(u_char v, int numBi 83 G4OutBitStream::SetFewBits(u_char v, int numBits)
84 { 84 {
85 v &= BitFullMaskT[numBits-1]; 85 v &= BitFullMaskT[numBits-1];
86 *mBuf |= v << (mBitPos + 1 - numBits); 86 *mBuf |= v << (mBitPos + 1 - numBits);
87 if( (mBitPos -= numBits) < 0 ){ 87 if( (mBitPos -= numBits) < 0 ){
88 if( *mBuf == 0xff ){ 88 if( *mBuf == 0xff ){
89 IncBuf(); 89 IncBuf();
90 *mBuf = 0; 90 *mBuf = 0;
91 } 91 }
92 IncBuf(); 92 IncBuf();
93 mBitPos = 7; 93 mBitPos = 7;
94 } 94 }
95 } 95 }
96 96
97 void 97 void
98 G4OutBitStream::SetBits2Byte(u_char v, int num 98 G4OutBitStream::SetBits2Byte(u_char v, int numBits)
99 { 99 {
100 v &= BitFullMaskT[numBits-1]; 100 v &= BitFullMaskT[numBits-1];
101 int nextBits = numBits - (mBitPos + 1); 101 int nextBits = numBits - (mBitPos + 1);
102 *mBuf |= ( v >> nextBits ) & BitFullMaskT[mB 102 *mBuf |= ( v >> nextBits ) & BitFullMaskT[mBitPos];
103 if( *mBuf == 0xff ){ 103 if( *mBuf == 0xff ){
104 IncBuf(); 104 IncBuf();
105 *mBuf = 0; 105 *mBuf = 0;
106 } 106 }
107 IncBuf(); 107 IncBuf();
108 108
109 *mBuf = v << (8 - nextBits); 109 *mBuf = v << (8 - nextBits);
110 mBitPos = 7 - nextBits; 110 mBitPos = 7 - nextBits;
111 } 111 }
112 112
113 void 113 void
114 G4OutBitStream::Set8Bits(u_char v, int numBits 114 G4OutBitStream::Set8Bits(u_char v, int numBits)
115 { 115 {
116 if( mBitPos + 1 >= numBits ) 116 if( mBitPos + 1 >= numBits )
117 SetFewBits( (u_char)v, numBits ); 117 SetFewBits( (u_char)v, numBits );
118 else 118 else
119 SetBits2Byte( (u_char)v, numBits ); 119 SetBits2Byte( (u_char)v, numBits );
120 } 120 }
121 121
122 122
123 void 123 void
124 G4OutBitStream::FullBit( void ) 124 G4OutBitStream::FullBit( void )
125 { 125 {
126 if( mBitPos != 7 ) 126 if( mBitPos != 7 )
127 SetFewBits( BitFullMaskT[mBitPos], mBi 127 SetFewBits( BitFullMaskT[mBitPos], mBitPos+1 );
128 } 128 }
129 129
130 void 130 void
131 G4OutBitStream::SetByte(u_char dat) 131 G4OutBitStream::SetByte(u_char dat)
132 { 132 {
133 if( mWriteFlag ){ 133 if( mWriteFlag ){
134 FullBit(); 134 FullBit();
135 *mBuf = dat; 135 *mBuf = dat;
136 IncBuf(); 136 IncBuf();
137 return; 137 return;
138 } 138 }
139 throw( G4BufferError( "SetByte" ) ); 139 throw( G4BufferError( "SetByte" ) );
140 } 140 }
141 141
142 void 142 void
143 G4OutBitStream::SetWord(u_int dat) 143 G4OutBitStream::SetWord(u_int dat)
144 { 144 {
145 if( mWriteFlag ){ 145 if( mWriteFlag ){
146 FullBit(); 146 FullBit();
147 *mBuf = (dat >> 8) & 0xff; 147 *mBuf = (dat >> 8) & 0xff;
148 IncBuf(); 148 IncBuf();
149 *mBuf = dat & 0xff; 149 *mBuf = dat & 0xff;
150 IncBuf(); 150 IncBuf();
151 return; 151 return;
152 } 152 }
153 throw( G4BufferError( "SetWord" ) ); 153 throw( G4BufferError( "SetWord" ) );
154 } 154 }
155 155
156 void 156 void
157 G4OutBitStream::CopyByte(const char* src, int 157 G4OutBitStream::CopyByte(const char* src, int n)
158 { 158 {
159 if( mBuf+n < mEndOfBuf ){ 159 if( mBuf+n < mEndOfBuf ){
160 FullBit(); 160 FullBit();
161 memcpy( mBuf, src, n ); 161 memcpy( mBuf, src, n );
162 mBuf += n; 162 mBuf += n;
163 return; 163 return;
164 } 164 }
165 throw( G4BufferError( "CopyByte" ) ); 165 throw( G4BufferError( "CopyByte" ) );
166 } 166 }
167 167
168 168