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UPC/EAN, ITF14: quiet zones, addongap; raster/vector: sync code, use double

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gitlost 2020-07-15 19:00:12 +01:00
parent e90c273165
commit 2a19b883a5
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backend/tools/gen_pwr928_table.php Normal file
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<?php
/* Generate mod 928 powers table for `encode928()` in "composite.c" */
/*
libzint - the open source barcode library
Copyright (C) 2020 Robin Stuart <rstuart114@gmail.com>
*/
/* vim: set ts=4 sw=4 et : */
/* The functions "getBit", "init928" and "encode928" are copyright BSI and are
released with permission under the following terms:
"Copyright subsists in all BSI publications. BSI also holds the copyright, in the
UK, of the international standardisation bodies. Except as
permitted under the Copyright, Designs and Patents Act 1988 no extract may be
reproduced, stored in a retrieval system or transmitted in any form or by any
means - electronic, photocopying, recording or otherwise - without prior written
permission from BSI.
"This does not preclude the free use, in the course of implementing the standard,
of necessary details such as symbols, and size, type or grade designations. If these
details are to be used for any other purpose than implementation then the prior
written permission of BSI must be obtained."
The date of publication for these functions is 31 May 2006
*/
$cw = array(0, 0, 0, 0, 0, 0, 1);
$pwr928 = array( $cw );
for ($j = 1; $j < 69; $j++) {
for ($v = 0, $i = 6; $i >= 1; $i--) {
$v = (2 * $cw[$i]) + (int)($v / 928);
$pwr928[$j][$i] = $cw[$i] = $v % 928;
}
$pwr928[$j][0] = $cw[0] = (2 * $cw[0]) + (int)($v / 928);
}
printf("static UINT pwr928[69][7] = {\n");
for ($i = 0; $i < 69; $i++) {
printf(" { ");
for ($j = 0; $j < 7; $j++) {
printf("%3d, ", $pwr928[$i][$j]);
}
printf("},\n");
}
printf("};\n");