diff options
Diffstat (limited to 'converter/ppm/ppmtompeg/headers/bitio.h')
| -rw-r--r-- | converter/ppm/ppmtompeg/headers/bitio.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/converter/ppm/ppmtompeg/headers/bitio.h b/converter/ppm/ppmtompeg/headers/bitio.h new file mode 100644 index 00000000..89e61fbb --- /dev/null +++ b/converter/ppm/ppmtompeg/headers/bitio.h @@ -0,0 +1,140 @@ +/*===========================================================================* + * bitio.h * + * * + * bitwise input/output * + * * + *===========================================================================*/ + +/* + * Copyright (c) 1995 The Regents of the University of California. + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose, without fee, and without written agreement is + * hereby granted, provided that the above copyright notice and the following + * two paragraphs appear in all copies of this software. + * + * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT + * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF + * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + */ + +/* + * $Header: /n/charlie-brown/project/mm/mpeg/mpeg_dist/mpeg_encode/headers/RCS/bitio.h,v 1.8 1995/01/19 23:54:37 eyhung Exp $ + * $Log: bitio.h,v $ + * Revision 1.8 1995/01/19 23:54:37 eyhung + * Changed copyrights + * + * Revision 1.7 1994/11/12 02:12:14 keving + * nothing + * + * Revision 1.6 1993/07/22 22:24:23 keving + * nothing + * + * Revision 1.5 1993/07/09 00:17:23 keving + * nothing + * + * Revision 1.4 1993/06/03 21:08:53 keving + * nothing + * + * Revision 1.3 1993/01/18 10:20:02 dwallach + * *** empty log message *** + * + * Revision 1.2 1993/01/18 10:17:29 dwallach + * RCS headers installed, code indented uniformly + * + * Revision 1.2 1993/01/18 10:17:29 dwallach + * RCS headers installed, code indented uniformly + * + */ + + +#ifndef BIT_IO_INCLUDED +#define BIT_IO_INCLUDED + + +/*==============* + * HEADER FILES * + *==============*/ + +#include "general.h" +#include "ansi.h" + + +/*===========* + * CONSTANTS * + *===========*/ + +#define WORDS_PER_BUCKET 128 +#define MAXBITS_PER_BUCKET (WORDS_PER_BUCKET * 32) +#define MAX_BUCKETS 128 +#define MAX_BITS MAX_BUCKETS*MAXBITS_PER_BUCKET + + +/*=======================* + * STRUCTURE DEFINITIONS * + *=======================*/ + +typedef struct bitBucket { + struct bitBucket *nextPtr; + uint32 bits[WORDS_PER_BUCKET]; + int bitsleft, bitsleftcur, currword; +} ActualBucket; + +typedef struct _BitBucket { + int totalbits; + int cumulativeBits; + int bitsWritten; + FILE *filePtr; + ActualBucket *firstPtr; + ActualBucket *lastPtr; +} BitBucket; + + +/*========* + * MACROS * + *========*/ + +#define SET_ITH_BIT(bits, i) (bits |= (1 << (i))) +#define GET_ITH_BIT(bits, i) (bits & (1 << (i))) + + +/*===============================* + * EXTERNAL PROCEDURE prototypes * + *===============================*/ + +void +Bitio_Free(BitBucket * const bbPtr); + +void +Bitio_Write(BitBucket * const bbPtr, + uint32 const bits, + int const nbits); + +void +Bitio_BytePad(BitBucket * const bbPtr); + +BitBucket * +Bitio_New(FILE * const filePtr); + +BitBucket * +Bitio_New_Filename(const char * const fileName); + +void +Bitio_Flush(BitBucket * const bbPtr); + +void +Bitio_Close(BitBucket * const bbPtr); + +void +Bitio_WriteToSocket(BitBucket * const bbPtr, + int const socket); + +#endif /* BIT_IO_INCLUDED */ |