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Added Aztec Runes

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This commit is contained in:
hooper114
2008-11-09 10:06:05 +00:00
parent 50f3861d0d
commit 49a14d9d73
11 changed files with 150 additions and 6 deletions
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93
backend/aztec.c
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@@ -1039,3 +1039,96 @@ int aztec(struct zint_symbol *symbol, unsigned char source[])
return err_code;
}
int aztec_runes(struct zint_symbol *symbol, unsigned char source[])
{
int input_length, error_number, i, y, x;
int input_value;
char binary_string[28];
unsigned char data_codewords[3], ecc_codewords[6];
error_number = 0;
input_value = 0;
input_length = ustrlen(source);
if(input_length > 3) {
strcpy(symbol->errtxt, "Input too large");
return ERROR_INVALID_DATA;
}
error_number = is_sane(NESET, source);
if(error_number != 0) {
strcpy(symbol->errtxt, "Invalid characters in input");
return ERROR_INVALID_DATA;
}
switch(input_length) {
case 3: input_value = 100 * ctoi(source[0]);
input_value += 10 * ctoi(source[1]);
input_value += ctoi(source[2]);
break;
case 2: input_value = 10 * ctoi(source[0]);
input_value += ctoi(source[1]);
break;
case 1: input_value = ctoi(source[0]);
break;
}
if(input_value > 255) {
strcpy(symbol->errtxt, "Input too large");
return ERROR_INVALID_DATA;
}
strcpy(binary_string, "");
if(input_value & 0x80) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x40) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x20) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x10) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x08) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x04) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x02) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
if(input_value & 0x01) { concat(binary_string, "1"); } else { concat(binary_string, "0"); }
data_codewords[0] = 0;
data_codewords[1] = 0;
for(i = 0; i < 2; i++) {
if(binary_string[i * 4] == '1') { data_codewords[i] += 8; }
if(binary_string[(i * 4) + 1] == '1') { data_codewords[i] += 4; }
if(binary_string[(i * 4) + 2] == '1') { data_codewords[i] += 2; }
if(binary_string[(i * 4) + 3] == '1') { data_codewords[i] += 1; }
}
rs_init_gf(0x13);
rs_init_code(5, 1);
rs_encode(2, data_codewords, ecc_codewords);
rs_free();
strcpy(binary_string, "");
for(i = 0; i < 5; i++) {
if(ecc_codewords[4 - i] & 0x08) { binary_string[(i * 4) + 8] = '1'; } else { binary_string[(i * 4) + 8] = '0'; }
if(ecc_codewords[4 - i] & 0x04) { binary_string[(i * 4) + 9] = '1'; } else { binary_string[(i * 4) + 9] = '0'; }
if(ecc_codewords[4 - i] & 0x02) { binary_string[(i * 4) + 10] = '1'; } else { binary_string[(i * 4) + 10] = '0'; }
if(ecc_codewords[4 - i] & 0x01) { binary_string[(i * 4) + 11] = '1'; } else { binary_string[(i * 4) + 11] = '0'; }
}
for(i = 0; i < 28; i += 2) {
if(binary_string[i] == '1') { binary_string[i] = '0'; } else { binary_string[i] = '1'; }
}
for(y = 8; y < 19; y++) {
for(x = 8; x < 19; x++) {
if(CompactAztecMap[(y * 27) + x] == 1) {
symbol->encoded_data[y - 8][x - 8] = '1';
}
if(CompactAztecMap[(y * 27) + x] >= 2) {
if(binary_string[CompactAztecMap[(y * 27) + x] - 2000] == '1') {
symbol->encoded_data[y - 8][x - 8] = '1';
}
}
}
symbol->row_height[y - 8] = 1;
}
symbol->rows = 11;
symbol->width = 11;
return 0;
}