qrcode.h

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#ifndef __QRCODE_H_
#define __QRCODE_H_
 
#ifndef __cplusplus
typedef unsigned char bool;
static const bool false = 0;
static const bool true = 1;
#endif
 
#include <stdint.h>
 
 
// QR Code Format Encoding
#define MODE_NUMERIC        0
#define MODE_ALPHANUMERIC   1
#define MODE_BYTE           2
 
 
// Error Correction Code Levels
#define ECC_LOW            0
#define ECC_MEDIUM         1
#define ECC_QUARTILE       2
#define ECC_HIGH           3
 
 
// If set to non-zero, this library can ONLY produce QR codes at that version
// This saves a lot of dynamic memory, as the codeword tables are skipped
#ifndef LOCK_VERSION
#define LOCK_VERSION       0
#endif
 
 
typedef struct QRCode {
    uint8_t version;
    uint8_t size;
    uint8_t ecc;
    uint8_t mode;
    uint8_t mask;
    uint8_t *modules;
} QRCode;
 
 
#ifdef __cplusplus
extern "C"{
#endif  /* __cplusplus */
 
 
 
uint16_t qrcode_getBufferSize(uint8_t version);
 
int8_t qrcode_initText(QRCode *qrcode, uint8_t *modules, uint8_t version, uint8_t ecc, const char *data);
int8_t qrcode_initBytes(QRCode *qrcode, uint8_t *modules, uint8_t version, uint8_t ecc, uint8_t *data, uint16_t length);
 
bool qrcode_getModule(QRCode *qrcode, uint8_t x, uint8_t y);
 
 
 
#ifdef __cplusplus
}
#endif  /* __cplusplus */
 
 
#endif  /* __QRCODE_H_ */