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comparison mupdf-source/thirdparty/zint/backend/output.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /* output.h - Common routines for raster/vector */
2 /*
3 libzint - the open source barcode library
4 Copyright (C) 2020-2024 Robin Stuart <rstuart114@gmail.com>
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions
8 are met:
9
10 1. Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15 3. Neither the name of the project nor the names of its contributors
16 may be used to endorse or promote products derived from this software
17 without specific prior written permission.
18
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 SUCH DAMAGE.
30 */
31 /* SPDX-License-Identifier: BSD-3-Clause */
32
33 #ifndef Z_OUTPUT_H
34 #define Z_OUTPUT_H
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif /* __cplusplus */
39
40 #include <stdio.h> /* For FILE */
41
42 /* Check colour options are good (`symbol->fgcolour`, `symbol->bgcolour`) */
43 INTERNAL int out_check_colour_options(struct zint_symbol *symbol);
44
45 /* Return RGB(A) from (well-formed) colour string. Returns 0 if RGB or converted CMYK, 1 if RGBA */
46 INTERNAL int out_colour_get_rgb(const char *colour, unsigned char *red, unsigned char *green, unsigned char *blue,
47 unsigned char *alpha);
48 /* Return CMYK from (well-formed) colour string. Returns 0 if CMYK, 1 if converted RBG, 2 if converted RGBA */
49 INTERNAL int out_colour_get_cmyk(const char *colour, int *cyan, int *magenta, int *yellow, int *black,
50 unsigned char *rgb_alpha);
51
52 /* Convert internal colour chars "WCBMRYGK" to RGB */
53 INTERNAL int out_colour_char_to_rgb(const char ch, unsigned char *red, unsigned char *green, unsigned char *blue);
54
55 /* Set left (x), top (y), right and bottom offsets for whitespace, also right quiet zone */
56 INTERNAL void out_set_whitespace_offsets(const struct zint_symbol *symbol, const int hide_text,
57 const int comp_xoffset, float *p_xoffset, float *p_yoffset, float *p_roffset, float *p_boffset,
58 float *p_qz_right, const float scaler, int *p_xoffset_si, int *p_yoffset_si, int *p_roffset_si,
59 int *p_boffset_si, int *p_qz_right_si);
60
61 /* Set composite offset and main width excluding add-on (for start of add-on calc) and add-on text, returning
62 EAN/UPC type */
63 INTERNAL int out_process_upcean(const struct zint_symbol *symbol, const int comp_xoffset, int *p_main_width,
64 unsigned char addon[6], int *p_addon_len, int *p_addon_gap);
65
66 /* Calculate large bar height i.e. linear bars with zero row height that respond to the symbol height.
67 If scaler `si` non-zero (raster), then large_bar_height if non-zero or else row heights will be rounded
68 to nearest pixel and symbol height adjusted */
69 INTERNAL float out_large_bar_height(struct zint_symbol *symbol, const int si, int *row_heights_si,
70 int *symbol_height_si);
71
72 /* Create output file, creating sub-directories if necessary. Returns `fopen()` FILE pointer */
73 INTERNAL FILE *out_fopen(const char filename[256], const char *mode);
74
75 #ifdef _WIN32
76 /* Do `fopen()` on Windows, assuming `filename` is UTF-8 encoded. Props Marcel, ticket #288 */
77 INTERNAL FILE *out_win_fopen(const char *filename, const char *mode);
78 #endif
79
80 /* Little-endian output */
81 #define out_le_u16(b, n) do { \
82 unsigned char *bp = (unsigned char *) &(b); \
83 uint16_t u16 = (uint16_t) (n); \
84 bp[0] = (unsigned char) (u16 & 0xFF); \
85 bp[1] = (unsigned char) ((u16 >> 8) & 0xFF); \
86 } while (0)
87
88 #define out_le_u32(b, n) do { \
89 unsigned char *bp = (unsigned char *) &(b); \
90 uint32_t u32 = (uint32_t) (n); \
91 bp[0] = (unsigned char) (u32 & 0xFF); \
92 bp[1] = (unsigned char) ((u32 >> 8) & 0xFF); \
93 bp[2] = (unsigned char) ((u32 >> 16) & 0xFF); \
94 bp[3] = (unsigned char) ((u32 >> 24) & 0xFF); \
95 } while (0)
96
97 #define out_le_i32(b, n) do { \
98 unsigned char *bp = (unsigned char *) &(b); \
99 int32_t i32 = (int32_t) (n); \
100 bp[0] = (unsigned char) (i32 & 0xFF); \
101 bp[1] = (unsigned char) ((i32 >> 8) & 0xFF); \
102 bp[2] = (unsigned char) ((i32 >> 16) & 0xFF); \
103 bp[3] = (unsigned char) ((i32 >> 24) & 0xFF); \
104 } while (0)
105
106 #define out_le_float(b, n) do { \
107 unsigned char *bp = (unsigned char *) &(b); \
108 float f = (float) (n); \
109 uint32_t *p_u32 = (uint32_t *) &f; \
110 bp[0] = (unsigned char) (*p_u32 & 0xFF); \
111 bp[1] = (unsigned char) ((*p_u32 >> 8) & 0xFF); \
112 bp[2] = (unsigned char) ((*p_u32 >> 16) & 0xFF); \
113 bp[3] = (unsigned char) ((*p_u32 >> 24) & 0xFF); \
114 } while (0)
115
116 /* If `#pragma pack()` not supported, try per-type packed attribute */
117 #ifdef __COMPCERT__
118 /* Can't use `__attribute__` as may be defined to be no-op by libc if not GNU C or Clang (e.g. glibc does this) */
119 # define OUT_PACK __attribute((__packed__)) /* CompCert C workaround extension `__attribute` */
120 #else
121 # define OUT_USE_PRAGMA_PACK
122 # define OUT_PACK
123 #endif
124
125 #ifdef __cplusplus
126 }
127 #endif /* __cplusplus */
128
129 /* vim: set ts=4 sw=4 et : */
130 #endif /* Z_OUTPUT_H */