lib_generic/bzlib_private.h - u-boot - Git at Google


            
            /*

            
             * This file is a modified version of bzlib_private.h from the bzip2-1.0.2

            
             * distribution which can be found at http://sources.redhat.com/bzip2/

            
             */


            /*-------------------------------------------------------------*/

            
            /*--- Private header file for the library.                  ---*/

            
            /*---                                       bzlib_private.h ---*/

            
            /*-------------------------------------------------------------*/


            /*--

            
              This file is a part of bzip2 and/or libbzip2, a program and

            
              library for lossless, block-sorting data compression.


              Copyright (C) 1996-2002 Julian R Seward.  All rights reserved.


              Redistribution and use in source and binary forms, with or without

            
              modification, are permitted provided that the following conditions

            
              are met:


              1. Redistributions of source code must retain the above copyright

            
                 notice, this list of conditions and the following disclaimer.


              2. The origin of this software must not be misrepresented; you must

            
                 not claim that you wrote the original software.  If you use this

            
                 software in a product, an acknowledgment in the product

            
                 documentation would be appreciated but is not required.


              3. Altered source versions must be plainly marked as such, and must

            
                 not be misrepresented as being the original software.


              4. The name of the author may not be used to endorse or promote

            
                 products derived from this software without specific prior written

            
                 permission.


              THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS

            
              OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

            
              WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

            
              ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY

            
              DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

            
              DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

            
              GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

            
              INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

            
              WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

            
              NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

            
              SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


              Julian Seward, Cambridge, UK.

            
              jseward@acm.org

            
              bzip2/libbzip2 version 1.0 of 21 March 2000


              This program is based on (at least) the work of:

            
                 Mike Burrows

            
                 David Wheeler

            
                 Peter Fenwick

            
                 Alistair Moffat

            
                 Radford Neal

            
                 Ian H. Witten

            
                 Robert Sedgewick

            
                 Jon L. Bentley


              For more information on these sources, see the manual.

            
            --*/


            #ifndef _BZLIB_PRIVATE_H

            
            #define _BZLIB_PRIVATE_H


            #include <malloc.h>


            #include "bzlib.h"


            #ifndef BZ_NO_STDIO

            
            #include <stdio.h>

            
            #include <ctype.h>

            
            #include <string.h>

            
            #endif


            /*-- General stuff. --*/


            #define BZ_VERSION  "1.0.2, 30-Dec-2001"


            typedef char            Char;

            
            typedef unsigned char   Bool;

            
            typedef unsigned char   UChar;

            
            typedef int             Int32;

            
            typedef unsigned int    UInt32;

            
            typedef short           Int16;

            
            typedef unsigned short  UInt16;


            #define True  ((Bool)1)

            
            #define False ((Bool)0)


            #ifndef __GNUC__

            
            #define __inline__  /* */

            
            #endif


            #ifndef BZ_NO_STDIO

            
            extern void BZ2_bz__AssertH__fail ( int errcode );

            
            #define AssertH(cond,errcode) \

            
               { if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); }

            
            #if BZ_DEBUG

            
            #define AssertD(cond,msg) \

            
               { if (!(cond)) {       \

            
                  fprintf ( stderr,   \

            
            	"\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\

            
                  exit(1); \

            
               }}

            
            #else

            
            #define AssertD(cond,msg) /* */

            
            #endif

            
            #define VPrintf0(zf) \

            
               fprintf(stderr,zf)

            
            #define VPrintf1(zf,za1) \

            
               fprintf(stderr,zf,za1)

            
            #define VPrintf2(zf,za1,za2) \

            
               fprintf(stderr,zf,za1,za2)

            
            #define VPrintf3(zf,za1,za2,za3) \

            
               fprintf(stderr,zf,za1,za2,za3)

            
            #define VPrintf4(zf,za1,za2,za3,za4) \

            
               fprintf(stderr,zf,za1,za2,za3,za4)

            
            #define VPrintf5(zf,za1,za2,za3,za4,za5) \

            
               fprintf(stderr,zf,za1,za2,za3,za4,za5)

            
            #else

            
            extern void bz_internal_error ( int errcode );

            
            #define AssertH(cond,errcode) \

            
               { if (!(cond)) bz_internal_error ( errcode ); }

            
            #define AssertD(cond,msg) /* */

            
            #define VPrintf0(zf) /* */

            
            #define VPrintf1(zf,za1) /* */

            
            #define VPrintf2(zf,za1,za2) /* */

            
            #define VPrintf3(zf,za1,za2,za3) /* */

            
            #define VPrintf4(zf,za1,za2,za3,za4) /* */

            
            #define VPrintf5(zf,za1,za2,za3,za4,za5) /* */

            
            #endif


            #define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1)

            
            #define BZFREE(ppp)  (strm->bzfree)(strm->opaque,(ppp))


            /*-- Header bytes. --*/


            #define BZ_HDR_B 0x42   /* 'B' */

            
            #define BZ_HDR_Z 0x5a   /* 'Z' */

            
            #define BZ_HDR_h 0x68   /* 'h' */

            
            #define BZ_HDR_0 0x30   /* '0' */


            /*-- Constants for the back end. --*/


            #define BZ_MAX_ALPHA_SIZE 258

            
            #define BZ_MAX_CODE_LEN    23


            #define BZ_RUNA 0

            
            #define BZ_RUNB 1


            #define BZ_N_GROUPS 6

            
            #define BZ_G_SIZE   50

            
            #define BZ_N_ITERS  4


            #define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE))


            /*-- Stuff for randomising repetitive blocks. --*/


            extern Int32 BZ2_rNums[512];


            #define BZ_RAND_DECLS                          \

            
               Int32 rNToGo;                               \

            
               Int32 rTPos                                 \


            #define BZ_RAND_INIT_MASK                      \

            
               s->rNToGo = 0;                              \

            
               s->rTPos  = 0                               \


            #define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0)


            #define BZ_RAND_UPD_MASK                       \

            
               if (s->rNToGo == 0) {                       \

            
                  s->rNToGo = BZ2_rNums[s->rTPos];         \

            
                  s->rTPos++;                              \

            
                  if (s->rTPos == 512) s->rTPos = 0;       \

            
               }                                           \

            
               s->rNToGo--;


            /*-- Stuff for doing CRCs. --*/


            extern UInt32 BZ2_crc32Table[256];


            #define BZ_INITIALISE_CRC(crcVar)              \

            
            {                                              \

            
               crcVar = 0xffffffffL;                       \

            
            }


            #define BZ_FINALISE_CRC(crcVar)                \

            
            {                                              \

            
               crcVar = ~(crcVar);                         \

            
            }


            #define BZ_UPDATE_CRC(crcVar,cha)              \

            
            {                                              \

            
               crcVar = (crcVar << 8) ^                    \

            
            	    BZ2_crc32Table[(crcVar >> 24) ^    \

            
            			   ((UChar)cha)];      \

            
            }


            /*-- States and modes for compression. --*/


            #define BZ_M_IDLE      1

            
            #define BZ_M_RUNNING   2

            
            #define BZ_M_FLUSHING  3

            
            #define BZ_M_FINISHING 4


            #define BZ_S_OUTPUT    1

            
            #define BZ_S_INPUT     2


            #define BZ_N_RADIX 2

            
            #define BZ_N_QSORT 12

            
            #define BZ_N_SHELL 18

            
            #define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2)


            /*-- Structure holding all the compression-side stuff. --*/


            typedef

            
               struct {

            
                  /* pointer back to the struct bz_stream */

            
                  bz_stream* strm;


                  /* mode this stream is in, and whether inputting */

            
                  /* or outputting data */

            
                  Int32    mode;

            
                  Int32    state;


                  /* remembers avail_in when flush/finish requested */

            
                  UInt32   avail_in_expect;


                  /* for doing the block sorting */

            
                  UInt32*  arr1;

            
                  UInt32*  arr2;

            
                  UInt32*  ftab;

            
                  Int32    origPtr;


                  /* aliases for arr1 and arr2 */

            
                  UInt32*  ptr;

            
                  UChar*   block;

            
                  UInt16*  mtfv;

            
                  UChar*   zbits;


                  /* for deciding when to use the fallback sorting algorithm */

            
                  Int32    workFactor;


                  /* run-length-encoding of the input */

            
                  UInt32   state_in_ch;

            
                  Int32    state_in_len;

            
                  BZ_RAND_DECLS;


                  /* input and output limits and current posns */

            
                  Int32    nblock;

            
                  Int32    nblockMAX;

            
                  Int32    numZ;

            
                  Int32    state_out_pos;


                  /* map of bytes used in block */

            
                  Int32    nInUse;

            
                  Bool     inUse[256];

            
                  UChar    unseqToSeq[256];


                  /* the buffer for bit stream creation */

            
                  UInt32   bsBuff;

            
                  Int32    bsLive;


                  /* block and combined CRCs */

            
                  UInt32   blockCRC;

            
                  UInt32   combinedCRC;


                  /* misc administratium */

            
                  Int32    verbosity;

            
                  Int32    blockNo;

            
                  Int32    blockSize100k;


                  /* stuff for coding the MTF values */

            
                  Int32    nMTF;

            
                  Int32    mtfFreq    [BZ_MAX_ALPHA_SIZE];

            
                  UChar    selector   [BZ_MAX_SELECTORS];

            
                  UChar    selectorMtf[BZ_MAX_SELECTORS];


                  UChar    len     [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

            
                  Int32    code    [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

            
                  Int32    rfreq   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

            
                  /* second dimension: only 3 needed; 4 makes index calculations faster */

            
                  UInt32   len_pack[BZ_MAX_ALPHA_SIZE][4];


               }

            
               EState;


            /*-- externs for compression. --*/


            extern void

            
            BZ2_blockSort ( EState* );


            extern void

            
            BZ2_compressBlock ( EState*, Bool );


            extern void

            
            BZ2_bsInitWrite ( EState* );


            extern void

            
            BZ2_hbAssignCodes ( Int32*, UChar*, Int32, Int32, Int32 );


            extern void

            
            BZ2_hbMakeCodeLengths ( UChar*, Int32*, Int32, Int32 );


            /*-- states for decompression. --*/


            #define BZ_X_IDLE        1

            
            #define BZ_X_OUTPUT      2


            #define BZ_X_MAGIC_1     10

            
            #define BZ_X_MAGIC_2     11

            
            #define BZ_X_MAGIC_3     12

            
            #define BZ_X_MAGIC_4     13

            
            #define BZ_X_BLKHDR_1    14

            
            #define BZ_X_BLKHDR_2    15

            
            #define BZ_X_BLKHDR_3    16

            
            #define BZ_X_BLKHDR_4    17

            
            #define BZ_X_BLKHDR_5    18

            
            #define BZ_X_BLKHDR_6    19

            
            #define BZ_X_BCRC_1      20

            
            #define BZ_X_BCRC_2      21

            
            #define BZ_X_BCRC_3      22

            
            #define BZ_X_BCRC_4      23

            
            #define BZ_X_RANDBIT     24

            
            #define BZ_X_ORIGPTR_1   25

            
            #define BZ_X_ORIGPTR_2   26

            
            #define BZ_X_ORIGPTR_3   27

            
            #define BZ_X_MAPPING_1   28

            
            #define BZ_X_MAPPING_2   29

            
            #define BZ_X_SELECTOR_1  30

            
            #define BZ_X_SELECTOR_2  31

            
            #define BZ_X_SELECTOR_3  32

            
            #define BZ_X_CODING_1    33

            
            #define BZ_X_CODING_2    34

            
            #define BZ_X_CODING_3    35

            
            #define BZ_X_MTF_1       36

            
            #define BZ_X_MTF_2       37

            
            #define BZ_X_MTF_3       38

            
            #define BZ_X_MTF_4       39

            
            #define BZ_X_MTF_5       40

            
            #define BZ_X_MTF_6       41

            
            #define BZ_X_ENDHDR_2    42

            
            #define BZ_X_ENDHDR_3    43

            
            #define BZ_X_ENDHDR_4    44

            
            #define BZ_X_ENDHDR_5    45

            
            #define BZ_X_ENDHDR_6    46

            
            #define BZ_X_CCRC_1      47

            
            #define BZ_X_CCRC_2      48

            
            #define BZ_X_CCRC_3      49

            
            #define BZ_X_CCRC_4      50


            /*-- Constants for the fast MTF decoder. --*/


            #define MTFA_SIZE 4096

            
            #define MTFL_SIZE 16


            /*-- Structure holding all the decompression-side stuff. --*/


            typedef

            
               struct {

            
                  /* pointer back to the struct bz_stream */

            
                  bz_stream* strm;


                  /* state indicator for this stream */

            
                  Int32    state;


                  /* for doing the final run-length decoding */

            
                  UChar    state_out_ch;

            
                  Int32    state_out_len;

            
                  Bool     blockRandomised;

            
                  BZ_RAND_DECLS;


                  /* the buffer for bit stream reading */

            
                  UInt32   bsBuff;

            
                  Int32    bsLive;


                  /* misc administratium */

            
                  Int32    blockSize100k;

            
                  Bool     smallDecompress;

            
                  Int32    currBlockNo;

            
                  Int32    verbosity;


                  /* for undoing the Burrows-Wheeler transform */

            
                  Int32    origPtr;

            
                  UInt32   tPos;

            
                  Int32    k0;

            
                  Int32    unzftab[256];

            
                  Int32    nblock_used;

            
                  Int32    cftab[257];

            
                  Int32    cftabCopy[257];


                  /* for undoing the Burrows-Wheeler transform (FAST) */

            
                  UInt32   *tt;


                  /* for undoing the Burrows-Wheeler transform (SMALL) */

            
                  UInt16   *ll16;

            
                  UChar    *ll4;


                  /* stored and calculated CRCs */

            
                  UInt32   storedBlockCRC;

            
                  UInt32   storedCombinedCRC;

            
                  UInt32   calculatedBlockCRC;

            
                  UInt32   calculatedCombinedCRC;


                  /* map of bytes used in block */

            
                  Int32    nInUse;

            
                  Bool     inUse[256];

            
                  Bool     inUse16[16];

            
                  UChar    seqToUnseq[256];


                  /* for decoding the MTF values */

            
                  UChar    mtfa   [MTFA_SIZE];

            
                  Int32    mtfbase[256 / MTFL_SIZE];

            
                  UChar    selector   [BZ_MAX_SELECTORS];

            
                  UChar    selectorMtf[BZ_MAX_SELECTORS];

            
                  UChar    len  [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];


                  Int32    limit  [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

            
                  Int32    base   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

            
                  Int32    perm   [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

            
                  Int32    minLens[BZ_N_GROUPS];


                  /* save area for scalars in the main decompress code */

            
                  Int32    save_i;

            
                  Int32    save_j;

            
                  Int32    save_t;

            
                  Int32    save_alphaSize;

            
                  Int32    save_nGroups;

            
                  Int32    save_nSelectors;

            
                  Int32    save_EOB;

            
                  Int32    save_groupNo;

            
                  Int32    save_groupPos;

            
                  Int32    save_nextSym;

            
                  Int32    save_nblockMAX;

            
                  Int32    save_nblock;

            
                  Int32    save_es;

            
                  Int32    save_N;

            
                  Int32    save_curr;

            
                  Int32    save_zt;

            
                  Int32    save_zn;

            
                  Int32    save_zvec;

            
                  Int32    save_zj;

            
                  Int32    save_gSel;

            
                  Int32    save_gMinlen;

            
                  Int32*   save_gLimit;

            
                  Int32*   save_gBase;

            
                  Int32*   save_gPerm;


               }

            
               DState;


            /*-- Macros for decompression. --*/


            #define BZ_GET_FAST(cccc)                     \

            
                s->tPos = s->tt[s->tPos];                 \

            
                cccc = (UChar)(s->tPos & 0xff);           \

            
                s->tPos >>= 8;


            #define BZ_GET_FAST_C(cccc)                   \

            
                c_tPos = c_tt[c_tPos];                    \

            
                cccc = (UChar)(c_tPos & 0xff);            \

            
                c_tPos >>= 8;


            #define SET_LL4(i,n)                                          \

            
               { if (((i) & 0x1) == 0)                                    \

            
            	s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (n); else    \

            
            	s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((n) << 4);  \

            
               }


            #define GET_LL4(i)                             \

            
               ((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF)


            #define SET_LL(i,n)                          \

            
               { s->ll16[i] = (UInt16)(n & 0x0000ffff);  \

            
                 SET_LL4(i, n >> 16);                    \

            
               }


            #define GET_LL(i) \

            
               (((UInt32)s->ll16[i]) | (GET_LL4(i) << 16))


            #define BZ_GET_SMALL(cccc)                            \

            
                  cccc = BZ2_indexIntoF ( s->tPos, s->cftab );    \

            
                  s->tPos = GET_LL(s->tPos);


            /*-- externs for decompression. --*/


            extern Int32

            
            BZ2_indexIntoF ( Int32, Int32* );


            extern Int32

            
            BZ2_decompress ( DState* );


            extern void

            
            BZ2_hbCreateDecodeTables ( Int32*, Int32*, Int32*, UChar*,

            
            			   Int32,  Int32, Int32 );


            #endif


            /*-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --*/


            #ifdef BZ_NO_STDIO

            
            #ifndef NULL

            
            #define NULL 0

            
            #endif

            
            #endif


            /*-------------------------------------------------------------*/

            
            /*--- end                                   bzlib_private.h ---*/

            
            /*-------------------------------------------------------------*/
	/*
	* This file is a modified version of bzlib_private.h from the bzip2-1.0.2
	* distribution which can be found at http://sources.redhat.com/bzip2/
	*/

	/-------------------------------------------------------------/
	/--- Private header file for the library. ---/
	/--- bzlib_private.h ---/
	/-------------------------------------------------------------/

	/*--
	This file is a part of bzip2 and/or libbzip2, a program and
	library for lossless, block-sorting data compression.

	Copyright (C) 1996-2002 Julian R Seward. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:

	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.

	2. The origin of this software must not be misrepresented; you must
	not claim that you wrote the original software. If you use this
	software in a product, an acknowledgment in the product
	documentation would be appreciated but is not required.

	3. Altered source versions must be plainly marked as such, and must
	not be misrepresented as being the original software.

	4. The name of the author may not be used to endorse or promote
	products derived from this software without specific prior written
	permission.

	THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
	OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
	GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	Julian Seward, Cambridge, UK.
	jseward@acm.org
	bzip2/libbzip2 version 1.0 of 21 March 2000

	This program is based on (at least) the work of:
	Mike Burrows
	David Wheeler
	Peter Fenwick
	Alistair Moffat
	Radford Neal
	Ian H. Witten
	Robert Sedgewick
	Jon L. Bentley

	For more information on these sources, see the manual.
	--*/


	#ifndef _BZLIB_PRIVATE_H
	#define _BZLIB_PRIVATE_H

	#include <malloc.h>

	#include "bzlib.h"

	#ifndef BZ_NO_STDIO
	#include <stdio.h>
	#include <ctype.h>
	#include <string.h>
	#endif


	/-- General stuff. --/

	#define BZ_VERSION "1.0.2, 30-Dec-2001"

	typedef char Char;
	typedef unsigned char Bool;
	typedef unsigned char UChar;
	typedef int Int32;
	typedef unsigned int UInt32;
	typedef short Int16;
	typedef unsigned short UInt16;

	#define True ((Bool)1)
	#define False ((Bool)0)

	#ifndef __GNUC__
	#define __inline__ /* */
	#endif

	#ifndef BZ_NO_STDIO
	extern void BZ2_bz__AssertH__fail ( int errcode );
	#define AssertH(cond,errcode) \
	{ if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); }
	#if BZ_DEBUG
	#define AssertD(cond,msg) \
	{ if (!(cond)) { \
	fprintf ( stderr, \
	"\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\
	exit(1); \
	}}
	#else
	#define AssertD(cond,msg) /* */
	#endif
	#define VPrintf0(zf) \
	fprintf(stderr,zf)
	#define VPrintf1(zf,za1) \
	fprintf(stderr,zf,za1)
	#define VPrintf2(zf,za1,za2) \
	fprintf(stderr,zf,za1,za2)
	#define VPrintf3(zf,za1,za2,za3) \
	fprintf(stderr,zf,za1,za2,za3)
	#define VPrintf4(zf,za1,za2,za3,za4) \
	fprintf(stderr,zf,za1,za2,za3,za4)
	#define VPrintf5(zf,za1,za2,za3,za4,za5) \
	fprintf(stderr,zf,za1,za2,za3,za4,za5)
	#else
	extern void bz_internal_error ( int errcode );
	#define AssertH(cond,errcode) \
	{ if (!(cond)) bz_internal_error ( errcode ); }
	#define AssertD(cond,msg) /* */
	#define VPrintf0(zf) /* */
	#define VPrintf1(zf,za1) /* */
	#define VPrintf2(zf,za1,za2) /* */
	#define VPrintf3(zf,za1,za2,za3) /* */
	#define VPrintf4(zf,za1,za2,za3,za4) /* */
	#define VPrintf5(zf,za1,za2,za3,za4,za5) /* */
	#endif


	#define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1)
	#define BZFREE(ppp) (strm->bzfree)(strm->opaque,(ppp))


	/-- Header bytes. --/

	#define BZ_HDR_B 0x42 /* 'B' */
	#define BZ_HDR_Z 0x5a /* 'Z' */
	#define BZ_HDR_h 0x68 /* 'h' */
	#define BZ_HDR_0 0x30 /* '0' */

	/-- Constants for the back end. --/

	#define BZ_MAX_ALPHA_SIZE 258
	#define BZ_MAX_CODE_LEN 23

	#define BZ_RUNA 0
	#define BZ_RUNB 1

	#define BZ_N_GROUPS 6
	#define BZ_G_SIZE 50
	#define BZ_N_ITERS 4

	#define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE))


	/-- Stuff for randomising repetitive blocks. --/

	extern Int32 BZ2_rNums[512];

	#define BZ_RAND_DECLS \
	Int32 rNToGo; \
	Int32 rTPos \

	#define BZ_RAND_INIT_MASK \
	s->rNToGo = 0; \
	s->rTPos = 0 \

	#define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0)

	#define BZ_RAND_UPD_MASK \
	if (s->rNToGo == 0) { \
	s->rNToGo = BZ2_rNums[s->rTPos]; \
	s->rTPos++; \
	if (s->rTPos == 512) s->rTPos = 0; \
	} \
	s->rNToGo--;


	/-- Stuff for doing CRCs. --/

	extern UInt32 BZ2_crc32Table[256];

	#define BZ_INITIALISE_CRC(crcVar) \
	{ \
	crcVar = 0xffffffffL; \
	}

	#define BZ_FINALISE_CRC(crcVar) \
	{ \
	crcVar = ~(crcVar); \
	}

	#define BZ_UPDATE_CRC(crcVar,cha) \
	{ \
	crcVar = (crcVar << 8) ^ \
	BZ2_crc32Table[(crcVar >> 24) ^ \
	((UChar)cha)]; \
	}


	/-- States and modes for compression. --/

	#define BZ_M_IDLE 1
	#define BZ_M_RUNNING 2
	#define BZ_M_FLUSHING 3
	#define BZ_M_FINISHING 4

	#define BZ_S_OUTPUT 1
	#define BZ_S_INPUT 2

	#define BZ_N_RADIX 2
	#define BZ_N_QSORT 12
	#define BZ_N_SHELL 18
	#define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2)


	/-- Structure holding all the compression-side stuff. --/

	typedef
	struct {
	/* pointer back to the struct bz_stream */
	bz_stream* strm;

	/* mode this stream is in, and whether inputting */
	/* or outputting data */
	Int32 mode;
	Int32 state;

	/* remembers avail_in when flush/finish requested */
	UInt32 avail_in_expect;

	/* for doing the block sorting */
	UInt32* arr1;
	UInt32* arr2;
	UInt32* ftab;
	Int32 origPtr;

	/* aliases for arr1 and arr2 */
	UInt32* ptr;
	UChar* block;
	UInt16* mtfv;
	UChar* zbits;

	/* for deciding when to use the fallback sorting algorithm */
	Int32 workFactor;

	/* run-length-encoding of the input */
	UInt32 state_in_ch;
	Int32 state_in_len;
	BZ_RAND_DECLS;

	/* input and output limits and current posns */
	Int32 nblock;
	Int32 nblockMAX;
	Int32 numZ;
	Int32 state_out_pos;

	/* map of bytes used in block */
	Int32 nInUse;
	Bool inUse[256];
	UChar unseqToSeq[256];

	/* the buffer for bit stream creation */
	UInt32 bsBuff;
	Int32 bsLive;

	/* block and combined CRCs */
	UInt32 blockCRC;
	UInt32 combinedCRC;

	/* misc administratium */
	Int32 verbosity;
	Int32 blockNo;
	Int32 blockSize100k;

	/* stuff for coding the MTF values */
	Int32 nMTF;
	Int32 mtfFreq [BZ_MAX_ALPHA_SIZE];
	UChar selector [BZ_MAX_SELECTORS];
	UChar selectorMtf[BZ_MAX_SELECTORS];

	UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
	Int32 code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
	Int32 rfreq [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
	/* second dimension: only 3 needed; 4 makes index calculations faster */
	UInt32 len_pack[BZ_MAX_ALPHA_SIZE][4];

	}
	EState;


	/-- externs for compression. --/

	extern void
	BZ2_blockSort ( EState* );

	extern void
	BZ2_compressBlock ( EState*, Bool );

	extern void
	BZ2_bsInitWrite ( EState* );

	extern void
	BZ2_hbAssignCodes ( Int32, UChar, Int32, Int32, Int32 );

	extern void
	BZ2_hbMakeCodeLengths ( UChar, Int32, Int32, Int32 );


	/-- states for decompression. --/

	#define BZ_X_IDLE 1
	#define BZ_X_OUTPUT 2

	#define BZ_X_MAGIC_1 10
	#define BZ_X_MAGIC_2 11
	#define BZ_X_MAGIC_3 12
	#define BZ_X_MAGIC_4 13
	#define BZ_X_BLKHDR_1 14
	#define BZ_X_BLKHDR_2 15
	#define BZ_X_BLKHDR_3 16
	#define BZ_X_BLKHDR_4 17
	#define BZ_X_BLKHDR_5 18
	#define BZ_X_BLKHDR_6 19
	#define BZ_X_BCRC_1 20
	#define BZ_X_BCRC_2 21
	#define BZ_X_BCRC_3 22
	#define BZ_X_BCRC_4 23
	#define BZ_X_RANDBIT 24
	#define BZ_X_ORIGPTR_1 25
	#define BZ_X_ORIGPTR_2 26
	#define BZ_X_ORIGPTR_3 27
	#define BZ_X_MAPPING_1 28
	#define BZ_X_MAPPING_2 29
	#define BZ_X_SELECTOR_1 30
	#define BZ_X_SELECTOR_2 31
	#define BZ_X_SELECTOR_3 32
	#define BZ_X_CODING_1 33
	#define BZ_X_CODING_2 34
	#define BZ_X_CODING_3 35
	#define BZ_X_MTF_1 36
	#define BZ_X_MTF_2 37
	#define BZ_X_MTF_3 38
	#define BZ_X_MTF_4 39
	#define BZ_X_MTF_5 40
	#define BZ_X_MTF_6 41
	#define BZ_X_ENDHDR_2 42
	#define BZ_X_ENDHDR_3 43
	#define BZ_X_ENDHDR_4 44
	#define BZ_X_ENDHDR_5 45
	#define BZ_X_ENDHDR_6 46
	#define BZ_X_CCRC_1 47
	#define BZ_X_CCRC_2 48
	#define BZ_X_CCRC_3 49
	#define BZ_X_CCRC_4 50


	/-- Constants for the fast MTF decoder. --/

	#define MTFA_SIZE 4096
	#define MTFL_SIZE 16


	/-- Structure holding all the decompression-side stuff. --/

	typedef
	struct {
	/* pointer back to the struct bz_stream */
	bz_stream* strm;

	/* state indicator for this stream */
	Int32 state;

	/* for doing the final run-length decoding */
	UChar state_out_ch;
	Int32 state_out_len;
	Bool blockRandomised;
	BZ_RAND_DECLS;

	/* the buffer for bit stream reading */
	UInt32 bsBuff;
	Int32 bsLive;

	/* misc administratium */
	Int32 blockSize100k;
	Bool smallDecompress;
	Int32 currBlockNo;
	Int32 verbosity;

	/* for undoing the Burrows-Wheeler transform */
	Int32 origPtr;
	UInt32 tPos;
	Int32 k0;
	Int32 unzftab[256];
	Int32 nblock_used;
	Int32 cftab[257];
	Int32 cftabCopy[257];

	/* for undoing the Burrows-Wheeler transform (FAST) */
	UInt32 *tt;

	/* for undoing the Burrows-Wheeler transform (SMALL) */
	UInt16 *ll16;
	UChar *ll4;

	/* stored and calculated CRCs */
	UInt32 storedBlockCRC;
	UInt32 storedCombinedCRC;
	UInt32 calculatedBlockCRC;
	UInt32 calculatedCombinedCRC;

	/* map of bytes used in block */
	Int32 nInUse;
	Bool inUse[256];
	Bool inUse16[16];
	UChar seqToUnseq[256];

	/* for decoding the MTF values */
	UChar mtfa [MTFA_SIZE];
	Int32 mtfbase[256 / MTFL_SIZE];
	UChar selector [BZ_MAX_SELECTORS];
	UChar selectorMtf[BZ_MAX_SELECTORS];
	UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];

	Int32 limit [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
	Int32 base [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
	Int32 perm [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
	Int32 minLens[BZ_N_GROUPS];

	/* save area for scalars in the main decompress code */
	Int32 save_i;
	Int32 save_j;
	Int32 save_t;
	Int32 save_alphaSize;
	Int32 save_nGroups;
	Int32 save_nSelectors;
	Int32 save_EOB;
	Int32 save_groupNo;
	Int32 save_groupPos;
	Int32 save_nextSym;
	Int32 save_nblockMAX;
	Int32 save_nblock;
	Int32 save_es;
	Int32 save_N;
	Int32 save_curr;
	Int32 save_zt;
	Int32 save_zn;
	Int32 save_zvec;
	Int32 save_zj;
	Int32 save_gSel;
	Int32 save_gMinlen;
	Int32* save_gLimit;
	Int32* save_gBase;
	Int32* save_gPerm;

	}
	DState;


	/-- Macros for decompression. --/

	#define BZ_GET_FAST(cccc) \
	s->tPos = s->tt[s->tPos]; \
	cccc = (UChar)(s->tPos & 0xff); \
	s->tPos >>= 8;

	#define BZ_GET_FAST_C(cccc) \
	c_tPos = c_tt[c_tPos]; \
	cccc = (UChar)(c_tPos & 0xff); \
	c_tPos >>= 8;

	#define SET_LL4(i,n) \
	{ if (((i) & 0x1) == 0) \
	s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) \| (n); else \
	s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) \| ((n) << 4); \
	}

	#define GET_LL4(i) \
	((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF)

	#define SET_LL(i,n) \
	{ s->ll16[i] = (UInt16)(n & 0x0000ffff); \
	SET_LL4(i, n >> 16); \
	}

	#define GET_LL(i) \
	(((UInt32)s->ll16[i]) \| (GET_LL4(i) << 16))

	#define BZ_GET_SMALL(cccc) \
	cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \
	s->tPos = GET_LL(s->tPos);


	/-- externs for decompression. --/

	extern Int32
	BZ2_indexIntoF ( Int32, Int32* );

	extern Int32
	BZ2_decompress ( DState* );

	extern void
	BZ2_hbCreateDecodeTables ( Int32, Int32, Int32, UChar,
	Int32, Int32, Int32 );


	#endif


	/-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --/

	#ifdef BZ_NO_STDIO
	#ifndef NULL
	#define NULL 0
	#endif
	#endif


	/-------------------------------------------------------------/
	/--- end bzlib_private.h ---/
	/-------------------------------------------------------------/