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Diffstat (limited to 'libtiff/tif_lzw.c')
-rw-r--r--libtiff/tif_lzw.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/libtiff/tif_lzw.c b/libtiff/tif_lzw.c
index 7edd13c5..5f1acf83 100644
--- a/libtiff/tif_lzw.c
+++ b/libtiff/tif_lzw.c
@@ -1,4 +1,4 @@
-/* $Id: tif_lzw.c,v 1.54 2017-02-18 18:46:00 erouault Exp $ */
+/* $Id: tif_lzw.c,v 1.55 2017-05-17 09:38:58 erouault Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
@@ -318,7 +318,7 @@ LZWPreDecode(TIFF* tif, uint16 s)
sp->dec_restart = 0;
sp->dec_nbitsmask = MAXCODE(BITS_MIN);
#ifdef LZW_CHECKEOS
- sp->dec_bitsleft = ((uint64)tif->tif_rawcc) << 3;
+ sp->dec_bitsleft = 0;
#endif
sp->dec_free_entp = sp->dec_codetab + CODE_FIRST;
/*
@@ -425,6 +425,9 @@ LZWDecode(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s)
}
bp = (unsigned char *)tif->tif_rawcp;
+#ifdef LZW_CHECKEOS
+ sp->dec_bitsleft = (((uint64)tif->tif_rawcc) << 3);
+#endif
nbits = sp->lzw_nbits;
nextdata = sp->lzw_nextdata;
nextbits = sp->lzw_nextbits;
@@ -549,6 +552,7 @@ LZWDecode(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s)
}
}
+ tif->tif_rawcc -= (tmsize_t)( (uint8*) bp - tif->tif_rawcp );
tif->tif_rawcp = (uint8*) bp;
sp->lzw_nbits = (unsigned short) nbits;
sp->lzw_nextdata = nextdata;