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Add ECI encoding

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This commit is contained in:
Robin Stuart 2016-08-16 12:43:41 +01:00
parent fc657d5fe8
commit 9d1c20201d
17 changed files with 994 additions and 317 deletions
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37
backend/maxicode.c
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@ -120,7 +120,7 @@ void maxi_bump(int set[], int character[], int bump_posn) {
}
/* Format text according to Appendix A */
int maxi_text_process(int mode, unsigned char source[], int length) {
int maxi_text_process(int mode, unsigned char source[], int length, int eci) {
/* This code doesn't make use of [Lock in C], [Lock in D]
and [Lock in E] and so is not always the most efficient at
compressing data, but should suffice for most applications */
@ -451,6 +451,15 @@ int maxi_text_process(int mode, unsigned char source[], int length) {
}
} while (i <= 143);
/* Insert ECI at the beginning of message if needed */
if (eci != 3) {
maxi_bump(set, character, 0);
character[0] = 27; // ECI
maxi_bump(set, character, 1);
character[1] = eci;
length += 2;
}
if (((mode == 2) || (mode == 3)) && (length > 84)) {
return ZINT_ERROR_TOO_LONG;
}
@ -548,36 +557,16 @@ void maxi_do_primary_3(char postcode[], int country, int service) {
maxi_codeword[9] = ((service & 0x3f0) >> 4);
}
int maxicode(struct zint_symbol *symbol, unsigned char source[], int length) {
int maxicode(struct zint_symbol *symbol, unsigned char local_source[], int length) {
int i, j, block, bit, mode, countrycode = 0, service = 0, lp = 0;
int bit_pattern[7], internal_error = 0, eclen, error_number;
int bit_pattern[7], internal_error = 0, eclen;
char postcode[12], countrystr[4], servicestr[4];
#ifndef _MSC_VER
unsigned char local_source[length + 1];
#else
unsigned char* local_source = (unsigned char*) _alloca(length + 1);
#endif
mode = symbol->option_1;
strcpy(postcode, "");
strcpy(countrystr, "");
strcpy(servicestr, "");
/* The following to be replaced by ECI handling */
switch (symbol->input_mode) {
case DATA_MODE:
case GS1_MODE:
memcpy(local_source, source, length);
local_source[length] = '\0';
break;
case UNICODE_MODE:
error_number = latin1_process(symbol, source, local_source, &length);
if (error_number != 0) {
return error_number;
}
break;
}
memset(maxi_codeword, 0, sizeof (maxi_codeword));
if (mode == -1) { /* If mode is unspecified */
@ -652,7 +641,7 @@ int maxicode(struct zint_symbol *symbol, unsigned char source[], int length) {
maxi_codeword[0] = mode;
}
i = maxi_text_process(mode, local_source, length);
i = maxi_text_process(mode, local_source, length, symbol->eci);
if (i == ZINT_ERROR_TOO_LONG) {
strcpy(symbol->errtxt, "Input data too long");
return i;