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Performance improvements for linear encoding and raster output

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- use fixed-length string tables (mostly) instead of (char *) pointer ones
   (saves ~40K)
 - re-use C128Table for CODABLOCKF and CODE16K
   (required removal of Stop character and extra CODE16K-only entry)
 - use pointer to destination and copy (memcpy/strcpy(), bin_append_posn())
   instead of concatenating (strcat()) (mostly)
 - replace last remaining bin_append()s with bin_append_posn();
   bin_append() removed
 - add length arg to toupper() and expand() (avoids strlen())
 - change is_sane() to use table-based flags (avoids an iteration)
 - rename lookup() to is_sane_lookup() and change to check and return posns
   and use in pointer to destination loops (avoids strcat()s)
 - remove special case PHARMA in expand() (dealt with in pharma())
 - make #define SILVER/CALCIUM/TECHNETIUM/KRSET etc static strings
 - replace strchr() -> posn()
 - CODE128: populate destination once in checksum loop; re-use and export
   some more routines (c128_set_a/b/c(), c128_put_in_set()) for sharing;
   prefix defines (SHIFTA -> C128_SHIFTA etc) and existing exported routines
 - use factor XOR toggle trick in checksum calcs (avoids branch)
 - raster.c: fill out single 1-pixel row and copy using new draw_bar_line(),
   copy_bar_line() routines; similarly in buffer_plot compare previous line &
   copy if same (same technique as used to improve non-half-integer scaling,
   significant performance increase, (c) codemonkey82);
   also done for PNG (BMP/GIF/PCX/TIFF not done)
 - raster/vector/output.c: shorten "output_" prefix -> "out_";
   sync vector to other raster changes to try to keep source files similar
 - 2of5.c: prefix "c25_"
JAPANPOST: return error if input data truncated (backward incompatible)
DAFT: max chars 50 -> 100
common.c: istwodigit() -> is_twodigit()
common.c/emf.c/output.c: use some further stripf()s (MSVC6 float variations)
library.c: new check_output_args() helper
zint.h: add BARCODE_LAST marker and use in library.c
QRCODE: remove a NOLINT (requires clang-tidy-13), one remaining
CMake: separate no-optimize from ZINT_DEBUG into new ZINT_NOOPT option
This commit is contained in:
gitlost 2021-10-20 23:05:30 +01:00
parent e8b59aa696
commit fab7435fac
72 changed files with 3501 additions and 2380 deletions
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33
backend/code49.h
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@ -2,7 +2,7 @@
/*
libzint - the open source barcode library
Copyright (C) 2009-2017 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2009-2021 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -29,21 +29,25 @@
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
/* vim: set ts=4 sw=4 et : */
/* This data set taken from ANSI/AIM-BC6-2000, 4th April 2000 */
static const char *c49_table7[128] = {
static const char c49_table7[128][2] = {
/* Table 7: Code 49 ASCII Chart */
"! ", "!A", "!B", "!C", "!D", "!E", "!F", "!G", "!H", "!I", "!J", "!K", "!L",
"!M", "!N", "!O", "!P", "!Q", "!R", "!S", "!T", "!U", "!V", "!W", "!X", "!Y",
"!Z", "!1", "!2", "!3", "!4", "!5", " ", "!6", "!7", "!8", "$", "%", "!9", "!0",
"!-", "!.", "!$", "+", "!/", "-", ".", "/", "0", "1", "2", "3", "4", "5", "6",
"7", "8", "9", "!+", "&1", "&2", "&3", "&4", "&5", "&6", "A", "B", "C", "D", "E",
"F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U",
"V", "W", "X", "Y", "Z", "&7", "&8", "&9", "&0", "&-", "&.", "&A", "&B", "&C",
"&D", "&E", "&F", "&G", "&H", "&I", "&J", "&K", "&L", "&M", "&N", "&O", "&P",
"&Q", "&R", "&S", "&T", "&U", "&V", "&W", "&X", "&Y", "&Z", "&$", "&/", "&+",
"&%", "& "
{'!',' '}, {'!','A'}, {'!','B'}, {'!','C'}, {'!','D'}, {'!','E'}, {'!','F'}, {'!','G'}, {'!','H'}, {'!','I'},
{'!','J'}, {'!','K'}, {'!','L'}, {'!','M'}, {'!','N'}, {'!','O'}, {'!','P'}, {'!','Q'}, {'!','R'}, {'!','S'},
{'!','T'}, {'!','U'}, {'!','V'}, {'!','W'}, {'!','X'}, {'!','Y'}, {'!','Z'}, {'!','1'}, {'!','2'}, {'!','3'},
{'!','4'}, {'!','5'}, { " " }, {'!','6'}, {'!','7'}, {'!','8'}, { "$" }, { "%" }, {'!','9'}, {'!','0'},
{'!','-'}, {'!','.'}, {'!','$'}, { "+" }, {'!','/'}, { "-" }, { "." }, { "/" }, { "0" }, { "1" },
{ "2" }, { "3" }, { "4" }, { "5" }, { "6" }, { "7" }, { "8" }, { "9" }, {'!','+'}, {'&','1'},
{'&','2'}, {'&','3'}, {'&','4'}, {'&','5'}, {'&','6'}, { "A" }, { "B" }, { "C" }, { "D" }, { "E" },
{ "F" }, { "G" }, { "H" }, { "I" }, { "J" }, { "K" }, { "L" }, { "M" }, { "N" }, { "O" },
{ "P" }, { "Q" }, { "R" }, { "S" }, { "T" }, { "U" }, { "V" }, { "W" }, { "X" }, { "Y" },
{ "Z" }, {'&','7'}, {'&','8'}, {'&','9'}, {'&','0'}, {'&','-'}, {'&','.'}, {'&','A'}, {'&','B'}, {'&','C'},
{'&','D'}, {'&','E'}, {'&','F'}, {'&','G'}, {'&','H'}, {'&','I'}, {'&','J'}, {'&','K'}, {'&','L'}, {'&','M'},
{'&','N'}, {'&','O'}, {'&','P'}, {'&','Q'}, {'&','R'}, {'&','S'}, {'&','T'}, {'&','U'}, {'&','V'}, {'&','W'},
{'&','X'}, {'&','Y'}, {'&','Z'}, {'&','$'}, {'&','/'}, {'&','+'}, {'&','%'}, {'&',' '}
};
/* Table 5: Check Character Weighting Values */
@ -62,9 +66,10 @@ static const char c49_z_weight[] = {
13, 5, 41, 33, 36, 8, 4, 32, 3, 19, 40, 25, 29, 10, 24, 30
};
static const char *c49_table4[8] = {
static const char c49_table4[8][4] = {
/* Table 4: Row Parity Pattern for Code 49 Symbols */
"OEEO", "EOEO", "OOEE", "EEOO", "OEOE", "EOOE", "OOOO", "EEEE"
{'O','E','E','O'}, {'E','O','E','O'}, {'O','O','E','E'}, {'E','E','O','O'},
{'O','E','O','E'}, {'E','O','O','E'}, {'O','O','O','O'}, {'E','E','E','E'}
};
static const unsigned short int c49_even_bitpattern[] = {