upleb.uk

Public git repos — served from a NIP-34 GRASP relay at git.upleb.uk

summaryrefslogtreecommitdiff
path: root/components/qrcode/include
diff options
context:
space:
mode:
Diffstat (limited to 'components/qrcode/include')
-rwxr-xr-xcomponents/qrcode/include/qrcoded.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/components/qrcode/include/qrcoded.h b/components/qrcode/include/qrcoded.h
new file mode 100755
index 0000000..602f9c0
--- /dev/null
+++ b/components/qrcode/include/qrcoded.h
@@ -0,0 +1,85 @@
1/**
2 * The MIT License (MIT)
3 *
4 * This library is written and maintained by Richard Moore.
5 * Major parts were derived from Project Nayuki's library.
6 *
7 * Copyright (c) 2017 Richard Moore (https://github.com/ricmoo/QRCode)
8 * Copyright (c) 2017 Project Nayuki (https://www.nayuki.io/page/qr-code-generator-library)
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 * THE SOFTWARE.
27 */
28
29/**
30 * Special thanks to Nayuki (https://www.nayuki.io/) from which this library was
31 * heavily inspired and compared against.
32 *
33 * See: https://github.com/nayuki/QR-Code-generator/tree/master/cpp
34 */
35
36#ifndef __QRCODE_H_
37#define __QRCODE_H_
38
39#include <stdbool.h>
40#include <stdint.h>
41
42// QR Code Format Encoding
43#define MODE_NUMERIC 0
44#define MODE_ALPHANUMERIC 1
45#define MODE_BYTE 2
46
47// Error Correction Code Levels
48#define ECC_LOW 0
49#define ECC_MEDIUM 1
50#define ECC_QUARTILE 2
51#define ECC_HIGH 3
52
53// If set to non-zero, this library can ONLY produce QR codes at that version
54// This saves a lot of dynamic memory, as the codeword tables are skipped
55#ifndef LOCK_VERSION
56#define LOCK_VERSION 0
57#endif
58
59typedef struct QRCode
60{
61 uint8_t version;
62 uint8_t size;
63 uint8_t ecc;
64 uint8_t mode;
65 uint8_t mask;
66 uint8_t *modules;
67} QRCode;
68
69#ifdef __cplusplus
70extern "C"
71{
72#endif /* __cplusplus */
73
74 uint16_t qrcode_getBufferSize(uint8_t version);
75
76 int8_t qrcode_initText(QRCode *qrcoded, uint8_t *modules, uint8_t version, uint8_t ecc, const char *data);
77 int8_t qrcode_initBytes(QRCode *qrcoded, uint8_t *modules, uint8_t version, uint8_t ecc, uint8_t *data, uint16_t length);
78
79 bool qrcode_getModule(QRCode *qrcoded, uint8_t x, uint8_t y);
80
81#ifdef __cplusplus
82}
83#endif /* __cplusplus */
84
85#endif /* __QRCODE_H_ */