]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - lib_generic/bzlib_decompress.c
Rename lib_generic/ to lib/
[karo-tx-uboot.git] / lib_generic / bzlib_decompress.c
diff --git a/lib_generic/bzlib_decompress.c b/lib_generic/bzlib_decompress.c
deleted file mode 100644 (file)
index 4412b8a..0000000
+++ /dev/null
@@ -1,674 +0,0 @@
-#include <config.h>
-#include <common.h>
-#include <watchdog.h>
-
-/*-------------------------------------------------------------*/
-/*--- Decompression machinery                               ---*/
-/*---                                          decompress.c ---*/
-/*-------------------------------------------------------------*/
-
-/*--
-  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.
---*/
-
-
-#include "bzlib_private.h"
-
-
-/*---------------------------------------------------*/
-static
-void makeMaps_d ( DState* s )
-{
-   Int32 i;
-   s->nInUse = 0;
-   for (i = 0; i < 256; i++)
-      if (s->inUse[i]) {
-        s->seqToUnseq[s->nInUse] = i;
-        s->nInUse++;
-      }
-}
-
-
-/*---------------------------------------------------*/
-#define RETURN(rrr)                               \
-   { retVal = rrr; goto save_state_and_return; };
-
-#define GET_BITS(lll,vvv,nnn)                     \
-   case lll: s->state = lll;                      \
-   while (True) {                                 \
-      if (s->bsLive >= nnn) {                     \
-        UInt32 v;                                \
-        v = (s->bsBuff >>                        \
-            (s->bsLive-nnn)) & ((1 << nnn)-1);   \
-        s->bsLive -= nnn;                        \
-        vvv = v;                                 \
-        break;                                   \
-      }                                           \
-      if (s->strm->avail_in == 0) RETURN(BZ_OK);  \
-      s->bsBuff                                   \
-        = (s->bsBuff << 8) |                     \
-          ((UInt32)                              \
-             (*((UChar*)(s->strm->next_in))));   \
-      s->bsLive += 8;                             \
-      s->strm->next_in++;                         \
-      s->strm->avail_in--;                        \
-      s->strm->total_in_lo32++;                   \
-      if (s->strm->total_in_lo32 == 0)            \
-        s->strm->total_in_hi32++;                \
-   }
-
-#define GET_UCHAR(lll,uuu)                        \
-   GET_BITS(lll,uuu,8)
-
-#define GET_BIT(lll,uuu)                          \
-   GET_BITS(lll,uuu,1)
-
-/*---------------------------------------------------*/
-#define GET_MTF_VAL(label1,label2,lval)           \
-{                                                 \
-   if (groupPos == 0) {                           \
-      groupNo++;                                  \
-      if (groupNo >= nSelectors)                  \
-        RETURN(BZ_DATA_ERROR);                   \
-      groupPos = BZ_G_SIZE;                       \
-      gSel = s->selector[groupNo];                \
-      gMinlen = s->minLens[gSel];                 \
-      gLimit = &(s->limit[gSel][0]);              \
-      gPerm = &(s->perm[gSel][0]);                \
-      gBase = &(s->base[gSel][0]);                \
-   }                                              \
-   groupPos--;                                    \
-   zn = gMinlen;                                  \
-   GET_BITS(label1, zvec, zn);                    \
-   while (1) {                                    \
-      if (zn > 20 /* the longest code */)         \
-        RETURN(BZ_DATA_ERROR);                   \
-      if (zvec <= gLimit[zn]) break;              \
-      zn++;                                       \
-      GET_BIT(label2, zj);                        \
-      zvec = (zvec << 1) | zj;                    \
-   };                                             \
-   if (zvec - gBase[zn] < 0                       \
-       || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE)  \
-      RETURN(BZ_DATA_ERROR);                      \
-   lval = gPerm[zvec - gBase[zn]];                \
-}
-
-
-/*---------------------------------------------------*/
-Int32 BZ2_decompress ( DState* s )
-{
-   UChar      uc;
-   Int32      retVal;
-   Int32      minLen, maxLen;
-   bz_stream* strm = s->strm;
-
-   /* stuff that needs to be saved/restored */
-   Int32  i;
-   Int32  j;
-   Int32  t;
-   Int32  alphaSize;
-   Int32  nGroups;
-   Int32  nSelectors;
-   Int32  EOB;
-   Int32  groupNo;
-   Int32  groupPos;
-   Int32  nextSym;
-   Int32  nblockMAX;
-   Int32  nblock;
-   Int32  es;
-   Int32  N;
-   Int32  curr;
-   Int32  zt;
-   Int32  zn;
-   Int32  zvec;
-   Int32  zj;
-   Int32  gSel;
-   Int32  gMinlen;
-   Int32* gLimit;
-   Int32* gBase;
-   Int32* gPerm;
-
-   if (s->state == BZ_X_MAGIC_1) {
-      /*initialise the save area*/
-      s->save_i           = 0;
-      s->save_j           = 0;
-      s->save_t           = 0;
-      s->save_alphaSize   = 0;
-      s->save_nGroups     = 0;
-      s->save_nSelectors  = 0;
-      s->save_EOB         = 0;
-      s->save_groupNo     = 0;
-      s->save_groupPos    = 0;
-      s->save_nextSym     = 0;
-      s->save_nblockMAX   = 0;
-      s->save_nblock      = 0;
-      s->save_es          = 0;
-      s->save_N           = 0;
-      s->save_curr        = 0;
-      s->save_zt          = 0;
-      s->save_zn          = 0;
-      s->save_zvec        = 0;
-      s->save_zj          = 0;
-      s->save_gSel        = 0;
-      s->save_gMinlen     = 0;
-      s->save_gLimit      = NULL;
-      s->save_gBase       = NULL;
-      s->save_gPerm       = NULL;
-   }
-
-   /*restore from the save area*/
-   i           = s->save_i;
-   j           = s->save_j;
-   t           = s->save_t;
-   alphaSize   = s->save_alphaSize;
-   nGroups     = s->save_nGroups;
-   nSelectors  = s->save_nSelectors;
-   EOB         = s->save_EOB;
-   groupNo     = s->save_groupNo;
-   groupPos    = s->save_groupPos;
-   nextSym     = s->save_nextSym;
-   nblockMAX   = s->save_nblockMAX;
-   nblock      = s->save_nblock;
-   es          = s->save_es;
-   N           = s->save_N;
-   curr        = s->save_curr;
-   zt          = s->save_zt;
-   zn          = s->save_zn;
-   zvec        = s->save_zvec;
-   zj          = s->save_zj;
-   gSel        = s->save_gSel;
-   gMinlen     = s->save_gMinlen;
-   gLimit      = s->save_gLimit;
-   gBase       = s->save_gBase;
-   gPerm       = s->save_gPerm;
-
-   retVal = BZ_OK;
-
-   switch (s->state) {
-
-      GET_UCHAR(BZ_X_MAGIC_1, uc);
-      if (uc != BZ_HDR_B) RETURN(BZ_DATA_ERROR_MAGIC);
-
-      GET_UCHAR(BZ_X_MAGIC_2, uc);
-      if (uc != BZ_HDR_Z) RETURN(BZ_DATA_ERROR_MAGIC);
-
-      GET_UCHAR(BZ_X_MAGIC_3, uc)
-      if (uc != BZ_HDR_h) RETURN(BZ_DATA_ERROR_MAGIC);
-
-      GET_BITS(BZ_X_MAGIC_4, s->blockSize100k, 8)
-      if (s->blockSize100k < (BZ_HDR_0 + 1) ||
-         s->blockSize100k > (BZ_HDR_0 + 9)) RETURN(BZ_DATA_ERROR_MAGIC);
-      s->blockSize100k -= BZ_HDR_0;
-
-      if (s->smallDecompress) {
-        s->ll16 = BZALLOC( s->blockSize100k * 100000 * sizeof(UInt16) );
-        s->ll4  = BZALLOC(
-                     ((1 + s->blockSize100k * 100000) >> 1) * sizeof(UChar)
-                  );
-        if (s->ll16 == NULL || s->ll4 == NULL) RETURN(BZ_MEM_ERROR);
-      } else {
-        s->tt  = BZALLOC( s->blockSize100k * 100000 * sizeof(Int32) );
-        if (s->tt == NULL) RETURN(BZ_MEM_ERROR);
-      }
-
-      GET_UCHAR(BZ_X_BLKHDR_1, uc);
-
-      if (uc == 0x17) goto endhdr_2;
-      if (uc != 0x31) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_BLKHDR_2, uc);
-      if (uc != 0x41) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_BLKHDR_3, uc);
-      if (uc != 0x59) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_BLKHDR_4, uc);
-      if (uc != 0x26) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_BLKHDR_5, uc);
-      if (uc != 0x53) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_BLKHDR_6, uc);
-      if (uc != 0x59) RETURN(BZ_DATA_ERROR);
-
-      s->currBlockNo++;
-      if (s->verbosity >= 2)
-        VPrintf1 ( "\n    [%d: huff+mtf ", s->currBlockNo );
-
-      s->storedBlockCRC = 0;
-      GET_UCHAR(BZ_X_BCRC_1, uc);
-      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
-      GET_UCHAR(BZ_X_BCRC_2, uc);
-      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
-      GET_UCHAR(BZ_X_BCRC_3, uc);
-      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
-      GET_UCHAR(BZ_X_BCRC_4, uc);
-      s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
-
-      GET_BITS(BZ_X_RANDBIT, s->blockRandomised, 1);
-
-      s->origPtr = 0;
-      GET_UCHAR(BZ_X_ORIGPTR_1, uc);
-      s->origPtr = (s->origPtr << 8) | ((Int32)uc);
-      GET_UCHAR(BZ_X_ORIGPTR_2, uc);
-      s->origPtr = (s->origPtr << 8) | ((Int32)uc);
-      GET_UCHAR(BZ_X_ORIGPTR_3, uc);
-      s->origPtr = (s->origPtr << 8) | ((Int32)uc);
-
-      if (s->origPtr < 0)
-        RETURN(BZ_DATA_ERROR);
-      if (s->origPtr > 10 + 100000*s->blockSize100k)
-        RETURN(BZ_DATA_ERROR);
-
-      /*--- Receive the mapping table ---*/
-      for (i = 0; i < 16; i++) {
-        GET_BIT(BZ_X_MAPPING_1, uc);
-        if (uc == 1)
-           s->inUse16[i] = True; else
-           s->inUse16[i] = False;
-      }
-
-      for (i = 0; i < 256; i++) s->inUse[i] = False;
-
-      for (i = 0; i < 16; i++)
-        if (s->inUse16[i])
-           for (j = 0; j < 16; j++) {
-              GET_BIT(BZ_X_MAPPING_2, uc);
-              if (uc == 1) s->inUse[i * 16 + j] = True;
-           }
-      makeMaps_d ( s );
-      if (s->nInUse == 0) RETURN(BZ_DATA_ERROR);
-      alphaSize = s->nInUse+2;
-
-      /*--- Now the selectors ---*/
-      GET_BITS(BZ_X_SELECTOR_1, nGroups, 3);
-      if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR);
-      GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15);
-      if (nSelectors < 1) RETURN(BZ_DATA_ERROR);
-      for (i = 0; i < nSelectors; i++) {
-        j = 0;
-        while (True) {
-           GET_BIT(BZ_X_SELECTOR_3, uc);
-           if (uc == 0) break;
-           j++;
-           if (j >= nGroups) RETURN(BZ_DATA_ERROR);
-        }
-        s->selectorMtf[i] = j;
-      }
-
-      /*--- Undo the MTF values for the selectors. ---*/
-      {
-        UChar pos[BZ_N_GROUPS], tmp, v;
-        for (v = 0; v < nGroups; v++) pos[v] = v;
-
-        for (i = 0; i < nSelectors; i++) {
-           v = s->selectorMtf[i];
-           tmp = pos[v];
-           while (v > 0) { pos[v] = pos[v-1]; v--; }
-           pos[0] = tmp;
-           s->selector[i] = tmp;
-        }
-      }
-
-      /*--- Now the coding tables ---*/
-      for (t = 0; t < nGroups; t++) {
-        GET_BITS(BZ_X_CODING_1, curr, 5);
-        for (i = 0; i < alphaSize; i++) {
-           while (True) {
-              if (curr < 1 || curr > 20) RETURN(BZ_DATA_ERROR);
-              GET_BIT(BZ_X_CODING_2, uc);
-              if (uc == 0) break;
-              GET_BIT(BZ_X_CODING_3, uc);
-              if (uc == 0) curr++; else curr--;
-           }
-           s->len[t][i] = curr;
-        }
-      }
-
-      /*--- Create the Huffman decoding tables ---*/
-      for (t = 0; t < nGroups; t++) {
-        minLen = 32;
-        maxLen = 0;
-        for (i = 0; i < alphaSize; i++) {
-           if (s->len[t][i] > maxLen) maxLen = s->len[t][i];
-           if (s->len[t][i] < minLen) minLen = s->len[t][i];
-        }
-        BZ2_hbCreateDecodeTables (
-           &(s->limit[t][0]),
-           &(s->base[t][0]),
-           &(s->perm[t][0]),
-           &(s->len[t][0]),
-           minLen, maxLen, alphaSize
-        );
-        s->minLens[t] = minLen;
-      }
-
-      /*--- Now the MTF values ---*/
-
-      EOB      = s->nInUse+1;
-      nblockMAX = 100000 * s->blockSize100k;
-      groupNo  = -1;
-      groupPos = 0;
-
-      for (i = 0; i <= 255; i++) s->unzftab[i] = 0;
-
-      /*-- MTF init --*/
-      {
-        Int32 ii, jj, kk;
-        kk = MTFA_SIZE-1;
-        for (ii = 256 / MTFL_SIZE - 1; ii >= 0; ii--) {
-           for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
-              s->mtfa[kk] = (UChar)(ii * MTFL_SIZE + jj);
-              kk--;
-           }
-           s->mtfbase[ii] = kk + 1;
-        }
-      }
-      /*-- end MTF init --*/
-
-      nblock = 0;
-      GET_MTF_VAL(BZ_X_MTF_1, BZ_X_MTF_2, nextSym);
-
-      while (True) {
-
-#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
-       WATCHDOG_RESET();
-#endif
-        if (nextSym == EOB) break;
-
-        if (nextSym == BZ_RUNA || nextSym == BZ_RUNB) {
-
-           es = -1;
-           N = 1;
-           do {
-              if (nextSym == BZ_RUNA) es = es + (0+1) * N; else
-              if (nextSym == BZ_RUNB) es = es + (1+1) * N;
-              N = N * 2;
-              GET_MTF_VAL(BZ_X_MTF_3, BZ_X_MTF_4, nextSym);
-           }
-              while (nextSym == BZ_RUNA || nextSym == BZ_RUNB);
-
-           es++;
-           uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ];
-           s->unzftab[uc] += es;
-
-           if (s->smallDecompress)
-              while (es > 0) {
-                 if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
-                 s->ll16[nblock] = (UInt16)uc;
-                 nblock++;
-                 es--;
-              }
-           else
-              while (es > 0) {
-                 if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
-                 s->tt[nblock] = (UInt32)uc;
-                 nblock++;
-                 es--;
-              };
-
-           continue;
-
-        } else {
-
-           if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
-
-           /*-- uc = MTF ( nextSym-1 ) --*/
-           {
-              Int32 ii, jj, kk, pp, lno, off;
-              UInt32 nn;
-              nn = (UInt32)(nextSym - 1);
-
-              if (nn < MTFL_SIZE) {
-                 /* avoid general-case expense */
-                 pp = s->mtfbase[0];
-                 uc = s->mtfa[pp+nn];
-                 while (nn > 3) {
-                    Int32 z = pp+nn;
-                    s->mtfa[(z)  ] = s->mtfa[(z)-1];
-                    s->mtfa[(z)-1] = s->mtfa[(z)-2];
-                    s->mtfa[(z)-2] = s->mtfa[(z)-3];
-                    s->mtfa[(z)-3] = s->mtfa[(z)-4];
-                    nn -= 4;
-                 }
-                 while (nn > 0) {
-                    s->mtfa[(pp+nn)] = s->mtfa[(pp+nn)-1]; nn--;
-                 };
-                 s->mtfa[pp] = uc;
-              } else {
-                 /* general case */
-                 lno = nn / MTFL_SIZE;
-                 off = nn % MTFL_SIZE;
-                 pp = s->mtfbase[lno] + off;
-                 uc = s->mtfa[pp];
-                 while (pp > s->mtfbase[lno]) {
-                    s->mtfa[pp] = s->mtfa[pp-1]; pp--;
-                 };
-                 s->mtfbase[lno]++;
-                 while (lno > 0) {
-                    s->mtfbase[lno]--;
-                    s->mtfa[s->mtfbase[lno]]
-                       = s->mtfa[s->mtfbase[lno-1] + MTFL_SIZE - 1];
-                    lno--;
-                 }
-                 s->mtfbase[0]--;
-                 s->mtfa[s->mtfbase[0]] = uc;
-                 if (s->mtfbase[0] == 0) {
-                    kk = MTFA_SIZE-1;
-                    for (ii = 256 / MTFL_SIZE-1; ii >= 0; ii--) {
-#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
-                       WATCHDOG_RESET();
-#endif
-                       for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
-                          s->mtfa[kk] = s->mtfa[s->mtfbase[ii] + jj];
-                          kk--;
-                       }
-                       s->mtfbase[ii] = kk + 1;
-                    }
-                 }
-              }
-           }
-           /*-- end uc = MTF ( nextSym-1 ) --*/
-
-           s->unzftab[s->seqToUnseq[uc]]++;
-           if (s->smallDecompress)
-              s->ll16[nblock] = (UInt16)(s->seqToUnseq[uc]); else
-              s->tt[nblock]   = (UInt32)(s->seqToUnseq[uc]);
-           nblock++;
-
-           GET_MTF_VAL(BZ_X_MTF_5, BZ_X_MTF_6, nextSym);
-           continue;
-        }
-      }
-
-      /* Now we know what nblock is, we can do a better sanity
-        check on s->origPtr.
-      */
-      if (s->origPtr < 0 || s->origPtr >= nblock)
-        RETURN(BZ_DATA_ERROR);
-
-      s->state_out_len = 0;
-      s->state_out_ch  = 0;
-      BZ_INITIALISE_CRC ( s->calculatedBlockCRC );
-      s->state = BZ_X_OUTPUT;
-      if (s->verbosity >= 2) VPrintf0 ( "rt+rld" );
-
-      /*-- Set up cftab to facilitate generation of T^(-1) --*/
-      s->cftab[0] = 0;
-      for (i = 1; i <= 256; i++) s->cftab[i] = s->unzftab[i-1];
-      for (i = 1; i <= 256; i++) s->cftab[i] += s->cftab[i-1];
-
-      if (s->smallDecompress) {
-
-        /*-- Make a copy of cftab, used in generation of T --*/
-        for (i = 0; i <= 256; i++) s->cftabCopy[i] = s->cftab[i];
-
-        /*-- compute the T vector --*/
-        for (i = 0; i < nblock; i++) {
-           uc = (UChar)(s->ll16[i]);
-           SET_LL(i, s->cftabCopy[uc]);
-           s->cftabCopy[uc]++;
-        }
-
-        /*-- Compute T^(-1) by pointer reversal on T --*/
-        i = s->origPtr;
-        j = GET_LL(i);
-        do {
-           Int32 tmp = GET_LL(j);
-           SET_LL(j, i);
-           i = j;
-           j = tmp;
-        }
-           while (i != s->origPtr);
-
-#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
-       WATCHDOG_RESET();
-#endif
-        s->tPos = s->origPtr;
-        s->nblock_used = 0;
-        if (s->blockRandomised) {
-           BZ_RAND_INIT_MASK;
-           BZ_GET_SMALL(s->k0); s->nblock_used++;
-           BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
-        } else {
-           BZ_GET_SMALL(s->k0); s->nblock_used++;
-        }
-
-      } else {
-
-#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
-       WATCHDOG_RESET();
-#endif
-        /*-- compute the T^(-1) vector --*/
-        for (i = 0; i < nblock; i++) {
-           uc = (UChar)(s->tt[i] & 0xff);
-           s->tt[s->cftab[uc]] |= (i << 8);
-           s->cftab[uc]++;
-        }
-
-        s->tPos = s->tt[s->origPtr] >> 8;
-        s->nblock_used = 0;
-        if (s->blockRandomised) {
-           BZ_RAND_INIT_MASK;
-           BZ_GET_FAST(s->k0); s->nblock_used++;
-           BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
-        } else {
-           BZ_GET_FAST(s->k0); s->nblock_used++;
-        }
-
-      }
-
-      RETURN(BZ_OK);
-
-
-    endhdr_2:
-
-      GET_UCHAR(BZ_X_ENDHDR_2, uc);
-      if (uc != 0x72) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_ENDHDR_3, uc);
-      if (uc != 0x45) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_ENDHDR_4, uc);
-      if (uc != 0x38) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_ENDHDR_5, uc);
-      if (uc != 0x50) RETURN(BZ_DATA_ERROR);
-      GET_UCHAR(BZ_X_ENDHDR_6, uc);
-      if (uc != 0x90) RETURN(BZ_DATA_ERROR);
-
-      s->storedCombinedCRC = 0;
-      GET_UCHAR(BZ_X_CCRC_1, uc);
-      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
-      GET_UCHAR(BZ_X_CCRC_2, uc);
-      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
-      GET_UCHAR(BZ_X_CCRC_3, uc);
-      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
-      GET_UCHAR(BZ_X_CCRC_4, uc);
-      s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
-
-      s->state = BZ_X_IDLE;
-      RETURN(BZ_STREAM_END);
-
-      default: AssertH ( False, 4001 );
-   }
-
-   AssertH ( False, 4002 );
-
-   save_state_and_return:
-
-   s->save_i           = i;
-   s->save_j           = j;
-   s->save_t           = t;
-   s->save_alphaSize   = alphaSize;
-   s->save_nGroups     = nGroups;
-   s->save_nSelectors  = nSelectors;
-   s->save_EOB         = EOB;
-   s->save_groupNo     = groupNo;
-   s->save_groupPos    = groupPos;
-   s->save_nextSym     = nextSym;
-   s->save_nblockMAX   = nblockMAX;
-   s->save_nblock      = nblock;
-   s->save_es          = es;
-   s->save_N           = N;
-   s->save_curr        = curr;
-   s->save_zt          = zt;
-   s->save_zn          = zn;
-   s->save_zvec        = zvec;
-   s->save_zj          = zj;
-   s->save_gSel        = gSel;
-   s->save_gMinlen     = gMinlen;
-   s->save_gLimit      = gLimit;
-   s->save_gBase       = gBase;
-   s->save_gPerm       = gPerm;
-
-   return retVal;
-}
-
-
-/*-------------------------------------------------------------*/
-/*--- end                                      decompress.c ---*/
-/*-------------------------------------------------------------*/