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jpirnay
2026-04-04 16:52:26 +02:00
parent 3c960a4c3e
commit 5ce022b5fc
1 changed files with 98 additions and 120 deletions
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lib/QRCode/src/qrcodegen.h
+16 -38
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@@ -27,12 +27,10 @@
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* This library creates QR Code symbols, which is a type of two-dimension barcode.
* Invented by Denso Wave and described in the ISO/IEC 18004 standard.
@@ -48,7 +46,6 @@ extern "C" {
* (Note that all ways require supplying the desired error correction level and various byte buffers.)
*/
/*---- Enum and struct types----*/
/*
@@ -57,13 +54,12 @@ extern "C" {
enum qrcodegen_Ecc {
// Must be declared in ascending order of error protection
// so that an internal qrcodegen function works properly
qrcodegen_Ecc_LOW = 0 , // The QR Code can tolerate about 7% erroneous codewords
qrcodegen_Ecc_MEDIUM , // The QR Code can tolerate about 15% erroneous codewords
qrcodegen_Ecc_LOW = 0, // The QR Code can tolerate about 7% erroneous codewords
qrcodegen_Ecc_MEDIUM, // The QR Code can tolerate about 15% erroneous codewords
qrcodegen_Ecc_QUARTILE, // The QR Code can tolerate about 25% erroneous codewords
qrcodegen_Ecc_HIGH , // The QR Code can tolerate about 30% erroneous codewords
qrcodegen_Ecc_HIGH, // The QR Code can tolerate about 30% erroneous codewords
};
/*
* The mask pattern used in a QR Code symbol.
*/
@@ -82,7 +78,6 @@ enum qrcodegen_Mask {
qrcodegen_Mask_7,
};
/*
* Describes how a segment's data bits are interpreted.
*/
@@ -94,7 +89,6 @@ enum qrcodegen_Mode {
qrcodegen_Mode_ECI = 0x7,
};
/*
* A segment of character/binary/control data in a QR Code symbol.
* The mid-level way to create a segment is to take the payload data
@@ -117,7 +111,7 @@ struct qrcodegen_Segment {
// The data bits of this segment, packed in bitwise big endian.
// Can be null if the bit length is zero.
uint8_t *data;
uint8_t* data;
// The number of valid data bits used in the buffer. Requires
// 0 <= bitLength <= 32767, and bitLength <= (capacity of data array) * 8.
@@ -125,8 +119,6 @@ struct qrcodegen_Segment {
int bitLength;
};
/*---- Macro constants and functions ----*/
#define qrcodegen_VERSION_MIN 1 // The minimum version number supported in the QR Code Model 2 standard
@@ -143,8 +135,6 @@ struct qrcodegen_Segment {
// Use this more convenient value to avoid calculating tighter memory bounds for buffers.
#define qrcodegen_BUFFER_LEN_MAX qrcodegen_BUFFER_LEN_FOR_VERSION(qrcodegen_VERSION_MAX)
/*---- Functions (high level) to generate QR Codes ----*/
/*
@@ -184,9 +174,8 @@ struct qrcodegen_Segment {
* Please consult the QR Code specification for information on
* data capacities per version, ECC level, and text encoding mode.
*/
bool qrcodegen_encodeText(const char *text, uint8_t tempBuffer[], uint8_t qrcode[],
enum qrcodegen_Ecc ecl, int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl);
bool qrcodegen_encodeText(const char* text, uint8_t tempBuffer[], uint8_t qrcode[], enum qrcodegen_Ecc ecl,
int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl);
/*
* Encodes the given binary data to a QR Code, returning true if successful.
@@ -223,9 +212,8 @@ bool qrcodegen_encodeText(const char *text, uint8_t tempBuffer[], uint8_t qrcode
* Please consult the QR Code specification for information on
* data capacities per version, ECC level, and text encoding mode.
*/
bool qrcodegen_encodeBinary(uint8_t dataAndTemp[], size_t dataLen, uint8_t qrcode[],
enum qrcodegen_Ecc ecl, int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl);
bool qrcodegen_encodeBinary(uint8_t dataAndTemp[], size_t dataLen, uint8_t qrcode[], enum qrcodegen_Ecc ecl,
int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl);
/*---- Functions (low level) to generate QR Codes ----*/
@@ -260,9 +248,8 @@ bool qrcodegen_encodeBinary(uint8_t dataAndTemp[], size_t dataLen, uint8_t qrcod
* between modes (such as alphanumeric and byte) to encode text in less space.
* This is a low-level API; the high-level API is qrcodegen_encodeText() and qrcodegen_encodeBinary().
*/
bool qrcodegen_encodeSegments(const struct qrcodegen_Segment segs[], size_t len,
enum qrcodegen_Ecc ecl, uint8_t tempBuffer[], uint8_t qrcode[]);
bool qrcodegen_encodeSegments(const struct qrcodegen_Segment segs[], size_t len, enum qrcodegen_Ecc ecl,
uint8_t tempBuffer[], uint8_t qrcode[]);
/*
* Encodes the given segments to a QR Code, returning true if successful.
@@ -300,23 +287,21 @@ bool qrcodegen_encodeSegments(const struct qrcodegen_Segment segs[], size_t len,
* This is a low-level API; the high-level API is qrcodegen_encodeText() and qrcodegen_encodeBinary().
*/
bool qrcodegen_encodeSegmentsAdvanced(const struct qrcodegen_Segment segs[], size_t len, enum qrcodegen_Ecc ecl,
int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl, uint8_t tempBuffer[], uint8_t qrcode[]);
int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl,
uint8_t tempBuffer[], uint8_t qrcode[]);
/*
* Tests whether the given string can be encoded as a segment in numeric mode.
* A string is encodable iff each character is in the range 0 to 9.
*/
bool qrcodegen_isNumeric(const char *text);
bool qrcodegen_isNumeric(const char* text);
/*
* Tests whether the given string can be encoded as a segment in alphanumeric mode.
* A string is encodable iff each character is in the following set: 0 to 9, A to Z
* (uppercase only), space, dollar, percent, asterisk, plus, hyphen, period, slash, colon.
*/
bool qrcodegen_isAlphanumeric(const char *text);
bool qrcodegen_isAlphanumeric(const char* text);
/*
* Returns the number of bytes (uint8_t) needed for the data buffer of a segment
@@ -331,7 +316,6 @@ bool qrcodegen_isAlphanumeric(const char *text);
*/
size_t qrcodegen_calcSegmentBufferSize(enum qrcodegen_Mode mode, size_t numChars);
/*
* Returns a segment representing the given binary data encoded in
* byte mode. All input byte arrays are acceptable. Any text string
@@ -339,20 +323,17 @@ size_t qrcodegen_calcSegmentBufferSize(enum qrcodegen_Mode mode, size_t numChars
*/
struct qrcodegen_Segment qrcodegen_makeBytes(const uint8_t data[], size_t len, uint8_t buf[]);
/*
* Returns a segment representing the given string of decimal digits encoded in numeric mode.
*/
struct qrcodegen_Segment qrcodegen_makeNumeric(const char *digits, uint8_t buf[]);
struct qrcodegen_Segment qrcodegen_makeNumeric(const char* digits, uint8_t buf[]);
/*
* Returns a segment representing the given text string encoded in alphanumeric mode.
* The characters allowed are: 0 to 9, A to Z (uppercase only), space,
* dollar, percent, asterisk, plus, hyphen, period, slash, colon.
*/
struct qrcodegen_Segment qrcodegen_makeAlphanumeric(const char *text, uint8_t buf[]);
struct qrcodegen_Segment qrcodegen_makeAlphanumeric(const char* text, uint8_t buf[]);
/*
* Returns a segment representing an Extended Channel Interpretation
@@ -360,7 +341,6 @@ struct qrcodegen_Segment qrcodegen_makeAlphanumeric(const char *text, uint8_t bu
*/
struct qrcodegen_Segment qrcodegen_makeEci(long assignVal, uint8_t buf[]);
/*---- Functions to extract raw data from QR Codes ----*/
/*
@@ -371,7 +351,6 @@ struct qrcodegen_Segment qrcodegen_makeEci(long assignVal, uint8_t buf[]);
*/
int qrcodegen_getSize(const uint8_t qrcode[]);
/*
* Returns the color of the module (pixel) at the given coordinates, which is false
* for light or true for dark. The top left corner has the coordinates (x=0, y=0).
@@ -379,7 +358,6 @@ int qrcodegen_getSize(const uint8_t qrcode[]);
*/
bool qrcodegen_getModule(const uint8_t qrcode[], int x, int y);
#ifdef __cplusplus
}
#endif