public function encodeMask(weixin_qrcode_QRinput $input, $mask)
{
if ($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
throw new Exception('wrong version');
}
if ($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
throw new Exception('wrong level');
}
$raw = new weixin_qrcode_QRrawcode($input);
weixin_qrcode_QRtools::markTime('after_raw');
$version = $raw->version;
$width = weixin_qrcode_QRspec::getWidth($version);
$frame = weixin_qrcode_QRspec::newFrame($version);
$filler = new weixin_qrcode_FrameFiller($width, $frame);
if (is_null($filler)) {
return NULL;
}
// inteleaved data and ecc codes
for ($i = 0; $i < $raw->dataLength + $raw->eccLength; $i++) {
$code = $raw->getCode();
$bit = 0x80;
for ($j = 0; $j < 8; $j++) {
$addr = $filler->next();
$filler->setFrameAt($addr, 0x2 | ($bit & $code) != 0);
$bit = $bit >> 1;
}
}
weixin_qrcode_QRtools::markTime('after_filler');
unset($raw);
// remainder bits
$j = weixin_qrcode_QRspec::getRemainder($version);
for ($i = 0; $i < $j; $i++) {
$addr = $filler->next();
$filler->setFrameAt($addr, 0x2);
}
$frame = $filler->frame;
unset($filler);
// masking
$maskObj = new weixin_qrcode_QRmask();
if ($mask < 0) {
if (QR_FIND_BEST_MASK) {
$masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
} else {
$masked = $maskObj->makeMask($width, $frame, intval(QR_DEFAULT_MASK) % 8, $input->getErrorCorrectionLevel());
}
} else {
$masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
}
if ($masked == NULL) {
return NULL;
}
weixin_qrcode_QRtools::markTime('after_mask');
$this->version = $version;
$this->width = $width;
$this->data = $masked;
return $this;
}
public static function buildCache()
{
weixin_qrcode_QRtools::markTime('before_build_cache');
$mask = new weixin_qrcode_QRmask();
for ($a = 1; $a <= QRSPEC_VERSION_MAX; $a++) {
$frame = weixin_qrcode_QRspec::newFrame($a);
if (QR_IMAGE) {
$fileName = QR_CACHE_DIR . 'frame_' . $a . '.png';
weixin_qrcode_QRimage::png(self::binarize($frame), $fileName, 1, 0);
}
$width = count($frame);
$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
for ($maskNo = 0; $maskNo < 8; $maskNo++) {
$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
}
}
weixin_qrcode_QRtools::markTime('after_build_cache');
}
public function writeFormatInformation($width, &$frame, $mask, $level)
{
$blacks = 0;
$format = weixin_qrcode_QRspec::getFormatInfo($mask, $level);
for ($i = 0; $i < 8; $i++) {
if ($format & 1) {
$blacks += 2;
$v = 0x85;
} else {
$v = 0x84;
}
$frame[8][$width - 1 - $i] = chr($v);
if ($i < 6) {
$frame[$i][8] = chr($v);
} else {
$frame[$i + 1][8] = chr($v);
}
$format = $format >> 1;
}
for ($i = 0; $i < 7; $i++) {
if ($format & 1) {
$blacks += 2;
$v = 0x85;
} else {
$v = 0x84;
}
$frame[$width - 7 + $i][8] = chr($v);
if ($i == 0) {
$frame[8][7] = chr($v);
} else {
$frame[8][6 - $i] = chr($v);
}
$format = $format >> 1;
}
return $blacks;
}
public function eat8()
{
$la = weixin_qrcode_QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
$ln = weixin_qrcode_QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
$p = 1;
$dataStrLen = strlen($this->dataStr);
while ($p < $dataStrLen) {
$mode = $this->identifyMode($p);
if ($mode == QR_MODE_KANJI) {
break;
}
if ($mode == QR_MODE_NUM) {
$q = $p;
while (self::isdigitat($this->dataStr, $q)) {
$q++;
}
$dif = weixin_qrcode_QRinput::estimateBitsMode8($p) + weixin_qrcode_QRinput::estimateBitsModeNum($q - $p) + 4 + $ln - weixin_qrcode_QRinput::estimateBitsMode8($q);
// - 4 - l8
if ($dif < 0) {
break;
} else {
$p = $q;
}
} else {
if ($mode == QR_MODE_AN) {
$q = $p;
while (self::isalnumat($this->dataStr, $q)) {
$q++;
}
$dif = weixin_qrcode_QRinput::estimateBitsMode8($p) + weixin_qrcode_QRinput::estimateBitsModeAn($q - $p) + 4 + $la - weixin_qrcode_QRinput::estimateBitsMode8($q);
// - 4 - l8
if ($dif < 0) {
break;
} else {
$p = $q;
}
} else {
$p++;
}
}
}
$run = $p;
$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
if ($ret < 0) {
return -1;
}
return $run;
}
public function init(array $spec)
{
$dl = weixin_qrcode_QRspec::rsDataCodes1($spec);
$el = weixin_qrcode_QRspec::rsEccCodes1($spec);
$rs = weixin_qrcode_QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
$blockNo = 0;
$dataPos = 0;
$eccPos = 0;
for ($i = 0; $i < weixin_qrcode_QRspec::rsBlockNum1($spec); $i++) {
$ecc = array_slice($this->ecccode, $eccPos);
$this->rsblocks[$blockNo] = new weixin_qrcode_QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
$dataPos += $dl;
$eccPos += $el;
$blockNo++;
}
if (weixin_qrcode_QRspec::rsBlockNum2($spec) == 0) {
return 0;
}
$dl = weixin_qrcode_QRspec::rsDataCodes2($spec);
$el = weixin_qrcode_QRspec::rsEccCodes2($spec);
$rs = weixin_qrcode_QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
if ($rs == NULL) {
return -1;
}
for ($i = 0; $i < weixin_qrcode_QRspec::rsBlockNum2($spec); $i++) {
$ecc = array_slice($this->ecccode, $eccPos);
$this->rsblocks[$blockNo] = new weixin_qrcode_QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
$dataPos += $dl;
$eccPos += $el;
$blockNo++;
}
return 0;
}
public function appendPaddingBit(&$bstream)
{
$bits = $bstream->size();
$maxwords = weixin_qrcode_QRspec::getDataLength($this->version, $this->level);
$maxbits = $maxwords * 8;
if ($maxbits == $bits) {
return 0;
}
if ($maxbits - $bits < 5) {
return $bstream->appendNum($maxbits - $bits, 0);
}
$bits += 4;
$words = (int) (($bits + 7) / 8);
$padding = new weixin_qrcode_QRbitstream();
$ret = $padding->appendNum($words * 8 - $bits + 4, 0);
if ($ret < 0) {
return $ret;
}
$padlen = $maxwords - $words;
if ($padlen > 0) {
$padbuf = array();
for ($i = 0; $i < $padlen; $i++) {
$padbuf[$i] = $i & 1 ? 0x11 : 0xec;
}
$ret = $padding->appendBytes($padlen, $padbuf);
if ($ret < 0) {
return $ret;
}
}
$ret = $bstream->append($padding);
return $ret;
}
public function encodeBitStream($version)
{
try {
unset($this->bstream);
$words = weixin_qrcode_QRspec::maximumWords($this->mode, $version);
if ($this->size > $words) {
$st1 = new weixin_qrcode_QRinputItem($this->mode, $words, $this->data);
$st2 = new weixin_qrcode_QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
$st1->encodeBitStream($version);
$st2->encodeBitStream($version);
$this->bstream = new weixin_qrcode_QRbitstream();
$this->bstream->append($st1->bstream);
$this->bstream->append($st2->bstream);
unset($st1);
unset($st2);
} else {
$ret = 0;
switch ($this->mode) {
case QR_MODE_NUM:
$ret = $this->encodeModeNum($version);
break;
case QR_MODE_AN:
$ret = $this->encodeModeAn($version);
break;
case QR_MODE_8:
$ret = $this->encodeMode8($version);
break;
case QR_MODE_KANJI:
$ret = $this->encodeModeKanji($version);
break;
case QR_MODE_STRUCTURE:
$ret = $this->encodeModeStructure();
break;
default:
break;
}
if ($ret < 0) {
return -1;
}
}
return $this->bstream->size();
} catch (Exception $e) {
return -1;
}
}
