public function encodeMask(wechat_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');
}
$raw = new wechat_qrcode_QRrawcode($input);
wechat_qrcode_QRtools::markTime('after_raw');
$version = $raw->version;
$width = wechat_qrcode_QRspec::getWidth($version);
$frame = wechat_qrcode_QRspec::newFrame($version);
$filler = new wechat_qrcode_FrameFiller($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 = $bit >> 1;
}
}
wechat_qrcode_QRtools::markTime('after_filler');
unset($raw);
// remainder bits
$j = wechat_qrcode_QRspec::getRemainder($version);
for ($i = 0; $i < $j; $i++) {
$addr = $filler->next();
$filler->setFrameAt($addr, 0x2);
}
$frame = $filler->frame;
unset($filler);
// masking
$maskObj = new wechat_qrcode_QRmask();
if ($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;
}
wechat_qrcode_QRtools::markTime('after_mask');
$this->version = $version;
$this->width = $width;
$this->data = $masked;
return $this;
}
public static function buildCache()
{
wechat_qrcode_QRtools::markTime('before_build_cache');
$mask = new wechat_qrcode_QRmask();
for ($a = 1; $a <= QRSPEC_VERSION_MAX; $a++) {
$frame = wechat_qrcode_QRspec::newFrame($a);
if (QR_IMAGE) {
$fileName = QR_CACHE_DIR . 'frame_' . $a . '.png';
wechat_qrcode_QRimage::png(self::binarize($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);
}
}
wechat_qrcode_QRtools::markTime('after_build_cache');
}