__STATIC QRcode *QRcode_encodeMaskMQR(QRinput *input, int mask)
{
int width, version;
MQRRawCode *raw;
unsigned char *frame, *masked, *p, code, bit;
FrameFiller *filler;
int i, j;
QRcode *qrcode = NULL;
if(!input->mqr) {
errno = EINVAL;
return NULL;
}
if(input->version <= 0 || input->version > MQRSPEC_VERSION_MAX) {
errno = EINVAL;
return NULL;
}
if(input->level > QR_ECLEVEL_Q) {
errno = EINVAL;
return NULL;
}
raw = MQRraw_new(input);
if(raw == NULL) return NULL;
version = raw->version;
width = MQRspec_getWidth(version);
frame = MQRspec_newFrame(version);
if(frame == NULL) {
MQRraw_free(raw);
return NULL;
}
filler = FrameFiller_new(width, frame, 1);
if(filler == NULL) {
MQRraw_free(raw);
free(frame);
return NULL;
}
/* inteleaved data and ecc codes */
for(i=0; i<raw->dataLength + raw->eccLength; i++) {
code = MQRraw_getCode(raw);
if(raw->oddbits && i == raw->dataLength - 1) {
bit = 1 << (raw->oddbits - 1);
for(j=0; j<raw->oddbits; j++) {
p = FrameFiller_next(filler);
if(p == NULL) goto EXIT;
*p = 0x02 | ((bit & code) != 0);
bit = bit >> 1;
}
} else {
STATIC_IN_RELEASE QRcode *QRcode_encodeMaskMQR(QRinput *input, int mask)
{
int width, version;
MQRRawCode *raw;
unsigned char *frame, *masked, *p, code, bit;
int i, j, length;
QRcode *qrcode = NULL;
FrameFiller filler;
if(!input->mqr) {
errno = EINVAL;
return NULL;
}
if(input->version <= 0 || input->version > MQRSPEC_VERSION_MAX) {
errno = EINVAL;
return NULL;
}
if(input->level > QR_ECLEVEL_Q) {
errno = EINVAL;
return NULL;
}
raw = MQRraw_new(input);
if(raw == NULL) return NULL;
version = raw->version;
width = MQRspec_getWidth(version);
frame = MQRspec_newFrame(version);
if(frame == NULL) {
MQRraw_free(raw);
return NULL;
}
FrameFiller_set(&filler, width, frame, 1);
/* interleaved data and ecc codes */
for(i = 0; i < raw->dataLength; i++) {
code = MQRraw_getCode(raw);
bit = 0x80;
if(raw->oddbits && i == raw->dataLength - 1) {
length = raw->oddbits;
} else {
length = 8;
}
for(j = 0; j < length; j++) {
p = FrameFiller_next(&filler);
if(p == NULL) goto EXIT;
*p = ((bit & code) != 0);
bit = bit >> 1;
}
}
for(i = 0; i < raw->eccLength; i++) {
code = MQRraw_getCode(raw);
bit = 0x80;
length = 8;
for(j = 0; j < length; j++) {
p = FrameFiller_next(&filler);
if(p == NULL) goto EXIT;
*p = 0x02 | ((bit & code) != 0);
bit = bit >> 1;
}
}
MQRraw_free(raw);
raw = NULL;
/* masking */
if(mask == -2) { // just for debug purpose
masked = (unsigned char *)malloc(width * width);
memcpy(masked, frame, width * width);
} else if(mask < 0) {
masked = MMask_mask(version, frame, input->level);
} else {
masked = MMask_makeMask(version, frame, mask, input->level);
}
if(masked == NULL) {
goto EXIT;
}
qrcode = QRcode_new(version, width, masked);
if(qrcode == NULL) {
free(masked);
}
EXIT:
MQRraw_free(raw);
free(frame);
return qrcode;
}
