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raster.c: need ceilf(large_bar_height * si) to avoid zero height rows;

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also improve non-half-int interpolation performance
raster/vector.c: use new stripf() func in "common.c" to workaround gcc
  32-bit float calculation variations
gs1.c: allow dummy AI "[]" if GS1NOCHECK_MODE and has data (#204);
  also add note re TPX AI 235 and terminating FNC1
Remove trailing whitespace in various files
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gitlost
2021-09-26 23:55:16 +01:00
parent 9884875fd5
commit eb6e5daa2d
18 changed files with 1255 additions and 1081 deletions
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24
backend/tif_lzw.h
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@ -39,27 +39,27 @@
* Copyright (c) 1988-1997 Sam Leffler
* Copyright (c) 1991-1997 Silicon Graphics, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
/*
* TIFF Library.
* TIFF Library.
* Rev 5.0 Lempel-Ziv & Welch Compression Support
*
* This code is derived from the compress program whose code is
@ -176,16 +176,16 @@ static void tif_lzw_cl_hash(tif_lzw_state *sp) {
/*
* Encode a chunk of pixels.
*
* Uses an open addressing double hashing (no chaining) on the
* Uses an open addressing double hashing (no chaining) on the
* prefix code/next character combination. We do a variant of
* Knuth's algorithm D (vol. 3, sec. 6.4) along with G. Knott's
* relatively-prime secondary probe. Here, the modular division
* first probe is gives way to a faster exclusive-or manipulation.
* first probe is gives way to a faster exclusive-or manipulation.
* Also do block compression with an adaptive reset, whereby the
* code table is cleared when the compression ratio decreases,
* but after the table fills. The variable-length output codes
* are re-sized at this point, and a CODE_CLEAR is generated
* for the decoder.
* for the decoder.
*/
static int tif_lzw_encode(tif_lzw_state *sp, FILE *op_file, const unsigned char *bp, int cc) {
register long fcode;