mirror of
https://github.com/woo-j/zint.git
synced 2024-12-23 13:33:55 +03:00
e515f63fab
spanning Text segments to avoid affecting 1st char of 2nd segment - PDF417/MICROPDF417: add optimized encoding, FAST_MODE for previous scheme; formatting changes - common.c/h: add `cnt_digits()`, comments in include and make more consistent, minor code fiddling - DOTCODE: replace `dc_n_digits()` with new `cnt_digits()` - test_qr: fix `test_qr_perf()` - composite: minor code fiddling - library: debug dump HIBC-processed input - BWIPP: update to latest
294 lines
12 KiB
C
294 lines
12 KiB
C
/* common.h - Header for all common functions in common.c */
|
|
/*
|
|
libzint - the open source barcode library
|
|
Copyright (C) 2009-2022 Robin Stuart <rstuart114@gmail.com>
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
3. Neither the name of the project nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software
|
|
without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
SUCH DAMAGE.
|
|
*/
|
|
/* SPDX-License-Identifier: BSD-3-Clause */
|
|
|
|
#ifndef Z_COMMON_H
|
|
#define Z_COMMON_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
#ifndef ARRAY_SIZE
|
|
#define ARRAY_SIZE(x) ((int) (sizeof(x) / sizeof((x)[0])))
|
|
#endif
|
|
|
|
/* Determine if C89 (excluding MSVC, which doesn't define __STDC_VERSION__) */
|
|
#if !defined(_MSC_VER) && (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199000L)
|
|
#define ZINT_IS_C89
|
|
#endif
|
|
|
|
#ifdef _MSC_VER
|
|
# include <malloc.h>
|
|
# define z_alloca(nmemb) _alloca(nmemb)
|
|
#else
|
|
# if defined(ZINT_IS_C89) || defined(__NuttX__) /* C89 or NuttX RTOS */
|
|
# include <alloca.h>
|
|
# endif
|
|
# define z_alloca(nmemb) alloca(nmemb)
|
|
#endif
|
|
|
|
#ifdef _MSC_VER
|
|
typedef unsigned __int8 uint8_t;
|
|
typedef unsigned __int16 uint16_t;
|
|
typedef __int32 int32_t;
|
|
typedef unsigned __int32 uint32_t;
|
|
typedef unsigned __int64 uint64_t;
|
|
#else
|
|
#include <stdint.h>
|
|
#endif
|
|
|
|
/* `is_sane()` flags */
|
|
#define IS_SPC_F 0x0001 /* Space */
|
|
#define IS_HSH_F 0x0002 /* Hash sign # */
|
|
#define IS_AST_F 0x0004 /* Asterisk sign * */
|
|
#define IS_PLS_F 0x0008 /* Plus sign + */
|
|
#define IS_MNS_F 0x0010 /* Minus sign - */
|
|
#define IS_NUM_F 0x0020 /* Number 0-9 */
|
|
#define IS_UPO_F 0x0040 /* Uppercase letter, apart from A-F and X */
|
|
#define IS_UHX_F 0x0080 /* Uppercase hex A-F */
|
|
#define IS_UX__F 0x0100 /* Uppercase X */
|
|
#define IS_LWO_F 0x0200 /* Lowercase letter, apart from a-f and x */
|
|
#define IS_LHX_F 0x0400 /* Lowercase hex a-f */
|
|
#define IS_LX__F 0x0800 /* Lowercase x */
|
|
#define IS_C82_F 0x1000 /* CSET82 punctuation (apart from *, + and -) */
|
|
#define IS_SIL_F 0x2000 /* SILVER/TECHNETIUM punctuation .$/% (apart from space, + and -) */
|
|
#define IS_CLI_F 0x4000 /* CALCIUM INNER punctuation $:/. (apart from + and -) (Codabar) */
|
|
#define IS_ARS_F 0x8000 /* ARSENIC uppercase subset (VIN) */
|
|
|
|
#define IS_UPR_F (IS_UPO_F | IS_UHX_F | IS_UX__F) /* Uppercase letters */
|
|
#define IS_LWR_F (IS_LWO_F | IS_LHX_F | IS_LX__F) /* Lowercase letters */
|
|
|
|
/* The most commonly used set */
|
|
#define NEON_F IS_NUM_F /* NEON "0123456789" */
|
|
|
|
/* Simple versions of <ctype.h> functions with no dependence on locale */
|
|
#define z_isdigit(c) ((c) <= '9' && (c) >= '0')
|
|
#define z_isupper(c) ((c) >= 'A' && (c) <= 'Z')
|
|
#define z_islower(c) ((c) >= 'a' && (c) <= 'z')
|
|
|
|
#include "zint.h"
|
|
#include "zintconfig.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/* Helpers to cast away char pointer signedness */
|
|
#define ustrlen(source) strlen((const char *) (source))
|
|
#define ustrcpy(target, source) strcpy((char *) (target), (const char *) (source))
|
|
#define ustrcat(target, source) strcat((char *) (target), (const char *) (source))
|
|
#define ustrncat(target, source, count) strncat((char *) (target), (const char *) (source), (count))
|
|
|
|
#if (defined(_MSC_VER) && _MSC_VER == 1200) || defined(ZINT_IS_C89) /* VC6 or C89 */
|
|
# define ceilf (float) ceil
|
|
# define floorf (float) floor
|
|
# define fmodf (float) fmod
|
|
#endif
|
|
/* `round()` (C99) not before MSVC 2013 (C++ 12.0) */
|
|
#if (defined(_MSC_VER) && _MSC_VER < 1800) || defined(ZINT_IS_C89)
|
|
# define round(arg) floor((arg) + 0.5)
|
|
# define roundf(arg) floorf((arg) + 0.5f)
|
|
#endif
|
|
|
|
#ifdef _MSC_VER
|
|
# pragma warning(disable: 4244) /* conversion from int to float */
|
|
# if _MSC_VER != 1200 /* VC6 */
|
|
# pragma warning(disable: 4996) /* function or variable may be unsafe */
|
|
# endif
|
|
#endif
|
|
|
|
/* Is float integral value? (https://stackoverflow.com/a/40404149) */
|
|
#define isfintf(arg) (fmodf(arg, 1.0f) == 0.0f)
|
|
|
|
#if (defined(__GNUC__) || defined(__clang__)) && !defined(ZINT_TEST) && !defined(__MINGW32__)
|
|
# define INTERNAL __attribute__ ((visibility ("hidden")))
|
|
#elif defined(ZINT_TEST)
|
|
# define INTERNAL ZINT_EXTERN /* The test suite references INTERNAL functions, so they need to be exported */
|
|
#else
|
|
# define INTERNAL
|
|
#endif
|
|
|
|
#if (defined(__GNUC__) || defined(__clang__)) && !defined(__MINGW32__)
|
|
# define INTERNAL_DATA_EXTERN __attribute__ ((visibility ("hidden"))) extern
|
|
# define INTERNAL_DATA __attribute__ ((visibility ("hidden")))
|
|
#else
|
|
# define INTERNAL_DATA_EXTERN extern
|
|
# define INTERNAL_DATA
|
|
#endif
|
|
|
|
#define Z_COMMON_INLINE 1
|
|
|
|
#ifdef Z_COMMON_INLINE
|
|
/* Returns true (1) if a module is dark/black, otherwise false (0) */
|
|
# define module_is_set(s, y, x) (((s)->encoded_data[(y)][(x) >> 3] >> ((x) & 0x07)) & 1)
|
|
|
|
/* Sets a module to dark/black */
|
|
# define set_module(s, y, x) do { (s)->encoded_data[(y)][(x) >> 3] |= 1 << ((x) & 0x07); } while (0)
|
|
|
|
/* Returns true (1-8) if a module is colour, otherwise false (0) */
|
|
# define module_colour_is_set(s, y, x) ((s)->encoded_data[(y)][(x)])
|
|
|
|
/* Sets a module to a colour */
|
|
# define set_module_colour(s, y, x, c) do { (s)->encoded_data[(y)][(x)] = (c); } while (0)
|
|
#endif
|
|
|
|
/* Converts a character 0-9, A-F to its equivalent integer value */
|
|
INTERNAL int ctoi(const char source);
|
|
|
|
/* Converts an integer value to its hexadecimal character */
|
|
INTERNAL char itoc(const int source);
|
|
|
|
/* Converts decimal string of length <= 9 to integer value. Returns -1 if not numeric */
|
|
INTERNAL int to_int(const unsigned char source[], const int length);
|
|
|
|
/* Converts lower case characters to upper case in string `source` */
|
|
INTERNAL void to_upper(unsigned char source[], const int length);
|
|
|
|
/* Returns the number of times a character occurs in `source` */
|
|
INTERNAL int chr_cnt(const unsigned char source[], const int length, const unsigned char c);
|
|
|
|
|
|
/* Whether a character matches `flg` */
|
|
INTERNAL int is_chr(const unsigned int flg, const unsigned int c);
|
|
|
|
/* Verifies that a string only uses valid characters */
|
|
INTERNAL int is_sane(const unsigned int flg, const unsigned char source[], const int length);
|
|
|
|
/* Verifies that a string only uses valid characters, and returns `test_string` position of each in `posns` array */
|
|
INTERNAL int is_sane_lookup(const char test_string[], const int test_length, const unsigned char source[],
|
|
const int length, int *posns);
|
|
|
|
/* Returns the position of `data` in `set_string` */
|
|
INTERNAL int posn(const char set_string[], const char data);
|
|
|
|
|
|
/* Converts `arg` to a string representing its binary equivalent of length `length` and places in `binary` at
|
|
`bin_posn`. Returns `bin_posn` + `length` */
|
|
INTERNAL int bin_append_posn(const int arg, const int length, char *binary, const int bin_posn);
|
|
|
|
|
|
#ifndef Z_COMMON_INLINE
|
|
/* Returns true (1) if a module is dark/black, otherwise false (0) */
|
|
INTERNAL int module_is_set(const struct zint_symbol *symbol, const int y_coord, const int x_coord);
|
|
|
|
/* Sets a module to dark/black */
|
|
INTERNAL void set_module(struct zint_symbol *symbol, const int y_coord, const int x_coord);
|
|
|
|
/* Returns true (1-8) if a module is colour, otherwise false (0) */
|
|
INTERNAL int module_colour_is_set(const struct zint_symbol *symbol, const int y_coord, const int x_coord);
|
|
|
|
/* Sets a module to a colour */
|
|
INTERNAL void set_module_colour(struct zint_symbol *symbol, const int y_coord, const int x_coord,
|
|
const int colour);
|
|
#endif
|
|
/* Sets a dark/black module to white (i.e. unsets) */
|
|
INTERNAL void unset_module(struct zint_symbol *symbol, const int y_coord, const int x_coord);
|
|
|
|
/* Expands from a width pattern to a bit pattern */
|
|
INTERNAL void expand(struct zint_symbol *symbol, const char data[], const int length);
|
|
|
|
|
|
/* Whether `symbology` can have row binding */
|
|
INTERNAL int is_stackable(const int symbology);
|
|
|
|
/* Whether `symbology` can have addon (EAN-2 and EAN-5) */
|
|
INTERNAL int is_extendable(const int symbology);
|
|
|
|
/* Whether `symbology` can have composite 2D component data */
|
|
INTERNAL int is_composite(const int symbology);
|
|
|
|
/* Whether `symbology` is a matrix design renderable as dots */
|
|
INTERNAL int is_dotty(const int symbology);
|
|
|
|
/* Whether `symbology` has a fixed aspect ratio (matrix design) */
|
|
INTERNAL int is_fixed_ratio(const int symbology);
|
|
|
|
|
|
/* Whether next two characters are digits */
|
|
INTERNAL int is_twodigits(const unsigned char source[], const int length, const int position);
|
|
|
|
/* Returns how many consecutive digits lie immediately ahead up to `max`, or all if `max` is -1 */
|
|
INTERNAL int cnt_digits(const unsigned char source[], const int length, const int position, const int max);
|
|
|
|
|
|
/* State machine to decode UTF-8 to Unicode codepoints (state 0 means done, state 12 means error) */
|
|
INTERNAL unsigned int decode_utf8(unsigned int *state, unsigned int *codep, const unsigned char byte);
|
|
|
|
/* Is string valid UTF-8? */
|
|
INTERNAL int is_valid_utf8(const unsigned char source[], const int length);
|
|
|
|
/* Converts UTF-8 to Unicode. If `disallow_4byte` unset, allows all values (UTF-32). If `disallow_4byte` set,
|
|
* only allows codepoints <= U+FFFF (ie four-byte sequences not allowed) (UTF-16, no surrogates) */
|
|
INTERNAL int utf8_to_unicode(struct zint_symbol *symbol, const unsigned char source[], unsigned int vals[],
|
|
int *length, const int disallow_4byte);
|
|
|
|
|
|
/* Sets symbol height, returning a warning if not within minimum and/or maximum if given.
|
|
`default_height` does not include height of fixed-height rows (i.e. separators/composite data) */
|
|
INTERNAL int set_height(struct zint_symbol *symbol, const float min_row_height, const float default_height,
|
|
const float max_height, const int set_errtxt);
|
|
|
|
|
|
/* Removes excess precision from floats - see https://stackoverflow.com/q/503436 */
|
|
INTERNAL float stripf(const float arg);
|
|
|
|
|
|
/* Returns total length of segments */
|
|
INTERNAL int segs_length(const struct zint_seg segs[], const int seg_count);
|
|
|
|
/* Shallow copies segments, adjusting default ECIs */
|
|
INTERNAL void segs_cpy(const struct zint_symbol *symbol, const struct zint_seg segs[], const int seg_count,
|
|
struct zint_seg local_segs[]);
|
|
|
|
|
|
/* Returns red component if any of ultra colour indexing "0CBMRYGKW" */
|
|
INTERNAL int colour_to_red(const int colour);
|
|
|
|
/* Returns green component if any of ultra colour indexing "0CBMRYGKW" */
|
|
INTERNAL int colour_to_green(const int colour);
|
|
|
|
/* Returns blue component if any of ultra colour indexing "0CBMRYGKW" */
|
|
INTERNAL int colour_to_blue(const int colour);
|
|
|
|
|
|
#ifdef ZINT_TEST
|
|
/* Dumps hex-formatted codewords in symbol->errtxt (for use in testing) */
|
|
INTERNAL void debug_test_codeword_dump(struct zint_symbol *symbol, const unsigned char *codewords, const int length);
|
|
/* Dumps decimal-formatted codewords in symbol->errtxt (for use in testing) */
|
|
INTERNAL void debug_test_codeword_dump_int(struct zint_symbol *symbol, const int *codewords, const int length);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
/* vim: set ts=4 sw=4 et : */
|
|
#endif /* Z_COMMON_H */
|