| 1 | //
|
|---|
| 2 | // ********************************************************************
|
|---|
| 3 | // * License and Disclaimer *
|
|---|
| 4 | // * *
|
|---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
|
|---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
|
|---|
| 7 | // * conditions of the Geant4 Software License, included in the file *
|
|---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
|
|---|
| 9 | // * include a list of copyright holders. *
|
|---|
| 10 | // * *
|
|---|
| 11 | // * Neither the authors of this software system, nor their employing *
|
|---|
| 12 | // * institutes,nor the agencies providing financial support for this *
|
|---|
| 13 | // * work make any representation or warranty, express or implied, *
|
|---|
| 14 | // * regarding this software system or assume any liability for its *
|
|---|
| 15 | // * use. Please see the license in the file LICENSE and URL above *
|
|---|
| 16 | // * for the full disclaimer and the limitation of liability. *
|
|---|
| 17 | // * *
|
|---|
| 18 | // * This code implementation is the result of the scientific and *
|
|---|
| 19 | // * technical work of the GEANT4 collaboration. *
|
|---|
| 20 | // * By using, copying, modifying or distributing the software (or *
|
|---|
| 21 | // * any work based on the software) you agree to acknowledge its *
|
|---|
| 22 | // * use in resulting scientific publications, and indicate your *
|
|---|
| 23 | // * acceptance of all terms of the Geant4 Software license. *
|
|---|
| 24 | // ********************************************************************
|
|---|
| 25 | //
|
|---|
| 26 | //
|
|---|
| 27 | // $Id: G4RTOutBitStream.hh,v 1.7 2006/06/29 21:23:23 gunter Exp $
|
|---|
| 28 | // GEANT4 tag $Name: geant4-09-02-ref-03 $
|
|---|
| 29 | //
|
|---|
| 30 | //
|
|---|
| 31 |
|
|---|
| 32 | // class description:
|
|---|
| 33 | //
|
|---|
| 34 | // This class represents a line of JPEG code. This class must be used exclusively
|
|---|
| 35 | // by G4RTJpegCoder.
|
|---|
| 36 | //
|
|---|
| 37 |
|
|---|
| 38 | #ifndef G4RTOutBitStream_H
|
|---|
| 39 | #define G4RTOutBitStream_H 1
|
|---|
| 40 | #include "G4RTJpeg.hh"
|
|---|
| 41 |
|
|---|
| 42 | static const u_char BitFullMaskT[8] = {0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
|
|---|
| 43 | , 0xff};
|
|---|
| 44 |
|
|---|
| 45 | class G4OutBitStream
|
|---|
| 46 | {
|
|---|
| 47 | public:
|
|---|
| 48 | G4OutBitStream(int size);
|
|---|
| 49 | void SetBits(int v, int numBits);
|
|---|
| 50 | void SetByte(u_char dat);
|
|---|
| 51 | void SetWord(u_int dat);
|
|---|
| 52 | void CopyByte(const char* src, int n);
|
|---|
| 53 |
|
|---|
| 54 | u_char* GetStreamAddress(void){return mHeadOfBuf;};
|
|---|
| 55 | int GetStreamSize(void){return mBuf - mHeadOfBuf;};
|
|---|
| 56 |
|
|---|
| 57 |
|
|---|
| 58 | protected:
|
|---|
| 59 | u_char* mHeadOfBuf;
|
|---|
| 60 | u_char* mBuf;
|
|---|
| 61 | u_char* mEndOfBuf;
|
|---|
| 62 | int mBitPos;
|
|---|
| 63 | int mWriteFlag;
|
|---|
| 64 |
|
|---|
| 65 | void IncBuf(void);
|
|---|
| 66 | void FullBit(void);
|
|---|
| 67 | void Set8Bits(u_char v, int numBits);
|
|---|
| 68 | void SetFewBits(u_char v, int numBits);
|
|---|
| 69 | void SetBits2Byte(u_char v, int numBits);
|
|---|
| 70 | };
|
|---|
| 71 |
|
|---|
| 72 | #endif
|
|---|
