function build()
{
$writer_head = new IO_Bit();
$writer = new IO_Bit();
/* SWF Header */
$writer_head->putData($this->_headers['Signature']);
$writer_head->putUI8($this->_headers['Version']);
$writer_head->putUI32LE($this->_headers['FileLength']);
/* SWF Movie Header */
IO_SWF_Type_RECT::build($writer, $this->_headers['FrameSize']);
$writer->byteAlign();
$writer->putUI16LE($this->_headers['FrameRate']);
$writer->putUI16LE($this->_headers['FrameCount']);
/* SWF Tags */
foreach ($this->_tags as $idx => $tag) {
$tagData = $tag->build();
if ($tagData != false) {
$writer->putData($tagData);
} else {
throw new IO_SWF_Exception("tag build failed (tag idx={$idx})");
}
}
list($fileLength, $bit_offset_dummy) = $writer->getOffset();
$fileLength += 8;
// swf header
$this->_headers['FileLength'] = $fileLength;
$writer_head->setUI32LE($fileLength, 4);
if ($this->_headers['Signature'][0] == 'C') {
return $writer_head->output() . gzcompress($writer->output());
}
return $writer_head->output() . $writer->output();
}
