extern unsigned char *FrameFiller_test(int version)
{
int width;
unsigned char *frame, *p;
FrameFiller *filler;
int i, length;
width = QRspec_getWidth(version);
frame = QRspec_newFrame(version);
if(frame == NULL) return NULL;
filler = FrameFiller_new(width, frame, 0);
if(filler == NULL) {
free(frame);
return NULL;
}
length = QRspec_getDataLength(version, QR_ECLEVEL_L) * 8
+ QRspec_getECCLength(version, QR_ECLEVEL_L) * 8
+ QRspec_getRemainder(version);
for(i=0; i<length; i++) {
p = FrameFiller_next(filler);
if(p == NULL) {
free(filler);
free(frame);
return NULL;
}
*p = (unsigned char)(i & 0x7f) | 0x80;
}
free(filler);
return frame;
}
void test_filler(void)
{
unsigned char *frame;
int i, j, w, e, length;
testStart("Frame filler test");
for(i=1; i<=QRSPEC_VERSION_MAX; i++) {
length = QRspec_getDataLength(i, QR_ECLEVEL_L) * 8
+ QRspec_getECCLength(i, QR_ECLEVEL_L) * 8
+ QRspec_getRemainder(i);
frame = FrameFiller_test(i);
if(frame == NULL) {
assert_nonnull(frame, "Something wrong in version %d\n", i);
} else {
w = QRspec_getWidth(i);
e = 0;
for(j=0; j<w*w; j++) {
if(frame[j] == 0) e++;
}
assert_zero(e, "Not filled bit is found. (%d,%d)\n", j%w,j/w);
e = w * (w - 9 - ((i > 6)?3:0));
assert_equal(frame[e], (unsigned char)((length - 1) & 127) | 0x80,
"Number of cell does not match.\n");
free(frame);
}
}
testFinish();
}
unsigned char *FrameFiller_fillerTest(int version)
{
int width, length;
unsigned char *frame, *p;
FrameFiller *filler;
int i, j;
unsigned char cl = 1;
unsigned char ch = 0;
width = QRspec_getWidth(version);
frame = QRspec_newFrame(version);
filler = FrameFiller_new(width, frame);
length = QRspec_getDataLength(version, QR_ECLEVEL_L)
+ QRspec_getECCLength(version, QR_ECLEVEL_L);
for(i=0; i<length; i++) {
for(j=0; j<8; j++) {
p = FrameFiller_next(filler);
*p = ch | cl;
cl++;
if(cl == 9) {
cl = 1;
ch += 0x10;
}
}
}
length = QRspec_getRemainder(version);
for(i=0; i<length; i++) {
p = FrameFiller_next(filler);
*p = 0xa0;
}
p = FrameFiller_next(filler);
free(filler);
if(p != NULL) {
return NULL;
}
return frame;
}
__STATIC QRcode *QRcode_encodeMask(QRinput *input, int mask)
{
int width, version;
QRRawCode *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 > QRSPEC_VERSION_MAX) {
errno = EINVAL;
return NULL;
}
if(input->level > QR_ECLEVEL_H) {
errno = EINVAL;
return NULL;
}
raw = QRraw_new(input);
if(raw == NULL) return NULL;
version = raw->version;
width = QRspec_getWidth(version);
frame = QRspec_newFrame(version);
if(frame == NULL) {
QRraw_free(raw);
return NULL;
}
filler = FrameFiller_new(width, frame, 0);
if(filler == NULL) {
QRraw_free(raw);
free(frame);
return NULL;
}
/* inteleaved data and ecc codes */
for(i=0; i<raw->dataLength + raw->eccLength; i++) {
code = QRraw_getCode(raw);
bit = 0x80;
for(j=0; j<8; j++) {
p = FrameFiller_next(filler);
if(p == NULL) goto EXIT;
*p = 0x02 | ((bit & code) != 0);
bit = bit >> 1;
}
}
QRraw_free(raw);
raw = NULL;
/* remainder bits */
j = QRspec_getRemainder(version);
for(i=0; i<j; i++) {
p = FrameFiller_next(filler);
if(p == NULL) goto EXIT;
*p = 0x02;
}
/* masking */
if(mask == -2) { // just for debug purpose
masked = (unsigned char *)malloc(width * width);
memcpy(masked, frame, width * width);
} else if(mask < 0) {
masked = Mask_mask(width, frame, input->level);
} else {
masked = Mask_makeMask(width, frame, mask, input->level);
}
if(masked == NULL) {
goto EXIT;
}
qrcode = QRcode_new(version, width, masked);
EXIT:
QRraw_free(raw);
free(filler);
free(frame);
return qrcode;
}