mirror of
https://github.com/Valeh2012/PersonalVotingMachine
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97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/**
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Richard Moore
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/**
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* Special thanks to Nayuki (https://www.nayuki.io/) from which this library was
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* heavily inspired and compared against.
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*
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* See: https://github.com/nayuki/QR-Code-generator/tree/master/cpp
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*/
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#ifndef __QRCODE_H_
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#define __QRCODE_H_
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#ifndef __cplusplus
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typedef int bool;
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static const bool false = 0;
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static const bool true = 1;
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#endif
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#include <stdint.h>
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// QR Code Format Encoding
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#define MODE_NUMERIC 0
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#define MODE_ALPHANUMERIC 1
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#define MODE_BYTE 2
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// Error Correction Code Levels
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#define ECC_LOW 0
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#define ECC_MEDIUM 1
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#define ECC_QUARTILE 2
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#define ECC_HIGH 3
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// If set to non-zero, this library can ONLY produce QR codes at that version
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// This saves a lot of dynamic memory, as the codeword tables are skipped
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#ifndef LOCK_VERSION
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#define LOCK_VERSION 0
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#endif
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typedef struct QRCode {
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uint8_t version;
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uint8_t size;
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uint8_t ecc;
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uint8_t mode;
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uint8_t mask;
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uint8_t *modules;
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} QRCode;
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#ifdef __cplusplus
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extern "C"{
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#endif /* __cplusplus */
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uint16_t qrcode_getBufferSize(uint8_t version);
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int8_t qrcode_initText(QRCode *qrcode, uint8_t *modules, uint8_t version, uint8_t ecc, const char *data);
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int8_t qrcode_initBytes(QRCode *qrcode, uint8_t *modules, uint8_t version, uint8_t ecc, uint8_t *data, uint16_t length);
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bool qrcode_getModule(QRCode *qrcode, uint8_t x, uint8_t y);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __QRCODE_H_ */
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