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Corrections to Micro QR Code, Unified Reed-Solomon Code

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This commit is contained in:
hooper114 2009-10-25 14:42:30 +00:00
parent 1542cf5680
commit fbf2a30fa5
7 changed files with 68 additions and 434 deletions
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16
backend/qr.c
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@ -27,7 +27,7 @@
#include <stdio.h>
#include "sjis.h"
#include "qr.h"
#include "qrrs.h"
#include "reedsol.h"
int in_alpha(int glyph) {
/* Returns true if input glyph is in the Alphanumeric set */
@ -506,8 +506,7 @@ void add_ecc(int fullstream[], int datastream[], int version, int data_cw, int b
int qty_long_blocks = data_cw % blocks;
int qty_short_blocks = blocks - qty_long_blocks;
int ecc_block_length = ecc_cw / blocks;
int i, j, length_this_block, posn, debug = 0;
RS *rs;
int i, j, length_this_block, posn, debug = 1;
#ifndef _MSC_VER
@ -535,8 +534,10 @@ void add_ecc(int fullstream[], int datastream[], int version, int data_cw, int b
data_block[j] = (unsigned char) datastream[posn + j];
}
rs = init_rs(8, 0x11d, 0, 1, ecc_block_length, 255 - length_this_block - ecc_block_length);
encode_rs_char(rs, data_block, ecc_block);
rs_init_gf(0x11d);
rs_init_code(ecc_block_length, 0);
rs_encode(length_this_block, data_block, ecc_block);
rs_free();
if(debug) {
printf("Block %d: ", i + 1);
@ -548,7 +549,7 @@ void add_ecc(int fullstream[], int datastream[], int version, int data_cw, int b
}
printf(" // ");
for(j = 0; j < ecc_block_length; j++) {
printf("%2X ", ecc_block[j]);
printf("%2X ", ecc_block[ecc_block_length - j - 1]);
}
printf("\n");
}
@ -562,12 +563,11 @@ void add_ecc(int fullstream[], int datastream[], int version, int data_cw, int b
}
for(j = 0; j < ecc_block_length; j++) {
interleaved_ecc[(j * blocks) + i] = (int) ecc_block[j];
interleaved_ecc[(j * blocks) + i] = (int) ecc_block[ecc_block_length - j - 1];
}
posn += length_this_block;
}
free_rs_cache();
for(j = 0; j < data_cw; j++) {
fullstream[j] = interleaved_data[j];