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Revion of ECI number encoding

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This commit is contained in:
Robin Stuart 2017-06-18 13:00:22 +01:00
parent 37ac5e9c54
commit a085bca168
7 changed files with 181 additions and 20 deletions
backend
maxicode.c

36
backend/maxicode.c
View file

@ -452,12 +452,42 @@ int maxi_text_process(int mode, unsigned char source[], int length, int eci) {
} while (i <= 143);
/* Insert ECI at the beginning of message if needed */
/* Encode ECI assignment numbers according to table 3 */
if (eci != 3) {
maxi_bump(set, character, 0);
character[0] = 27; // ECI
maxi_bump(set, character, 1);
character[1] = eci;
length += 2;
if (eci <= 31) {
maxi_bump(set, character, 1);
character[1] = eci;
length += 2;
}
if ((eci >= 32) && (eci <= 1023)) {
maxi_bump(set, character, 1);
maxi_bump(set, character, 1);
character[1] = 0x20 + ((eci >> 6) & 0x0F);
character[2] = eci & 0x3F;
length += 3;
}
if ((eci >= 1024) && (eci <= 32767)) {
maxi_bump(set, character, 1);
maxi_bump(set, character, 1);
maxi_bump(set, character, 1);
character[1] = 0x30 + ((eci >> 12) & 0x03);
character[2] = (eci >> 6) & 0x3F;
character[3] = eci & 0x3F;
length += 4;
}
if (eci >= 32768) {
maxi_bump(set, character, 1);
maxi_bump(set, character, 1);
maxi_bump(set, character, 1);
maxi_bump(set, character, 1);
character[1] = 0x38 + ((eci >> 18) & 0x02);
character[2] = (eci >> 12) & 0x3F;
character[3] = (eci >> 6) & 0x3F;
character[4] = eci & 0x3F;
length += 5;
}
}
if (((mode == 2) || (mode == 3)) && (length > 84)) {