mirror of
https://github.com/zint/zint
synced 2024-11-16 20:57:25 +13:00
93c3e27fba
from ZXing (props Alex Geller) - about 25-60% slower depending on data & stack heavy but does improve some outcomes when FNC1s present (GS1_MODE or manual) although not much else it appears (the previous algorithm was very good), but has a logical clarity the other lacked - funcs `c128_dxsmooth()` etc shared with CODE16K now moved there and renamed as `c16k_`; also fix extended char latching when exactly 4 extended chars at end also manual code set switching now honoured exactly even if immediate shift required; manual: make explicit that AI "(00)" and "(01)" prefixes added by Zint are HRT-only general: add `extern "C"` wrappers to a few header files
56 lines
2.4 KiB
C
56 lines
2.4 KiB
C
/*
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libzint - the open source barcode library
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Copyright (C) 2020-2024 Robin Stuart <rstuart114@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the project nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* SPDX-License-Identifier: BSD-3-Clause */
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#ifndef Z_CODE128_H
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#define Z_CODE128_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Allow for a reasonable number of special Code Set escapes and for GS1 AI delimiters */
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#define C128_MAX 256
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INTERNAL int code128(struct zint_symbol *symbol, unsigned char source[], int length);
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INTERNAL void c128_set_a(const unsigned char source, int values[], int *bar_chars);
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INTERNAL int c128_set_b(const unsigned char source, int values[], int *bar_chars);
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INTERNAL void c128_set_c(const unsigned char source_a, const unsigned char source_b, int values[], int *bar_chars);
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INTERNAL_DATA_EXTERN const char C128Table[107][6];
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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/* vim: set ts=4 sw=4 et : */
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#endif /* Z_CODE128_H */
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