/**
* Decode the Presentation Syntax
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return void
*/
function decodeItem(CDicomStreamReader $stream_reader)
{
$this->id = $stream_reader->readUInt8();
$stream_reader->skip(3);
$this->abstract_syntax = CDicomPDUItemFactory::decodeItem($stream_reader);
$this->transfer_syntaxes = CDicomPDUItemFactory::decodeConsecutiveItemsByType($stream_reader, 0x40);
}
/**
* Decode the Presentation Syntax
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decodeItem(CDicomStreamReader $stream_reader)
{
$this->id = $stream_reader->readUInt8();
$stream_reader->skip(1);
$this->reason = $stream_reader->readUInt8();
$stream_reader->skip(1);
$this->transfer_syntax = CDicomPDUItemFactory::decodeItem($stream_reader);
}
/**
* Decode the PDU
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decodePDU(CDicomStreamReader $stream_reader)
{
$stream_reader->skip(1);
$this->result = $stream_reader->readUInt8();
$this->source = $stream_reader->readUInt8();
$this->diagnostic = $stream_reader->readUInt8();
}
/**
* Decode the User Identity Negociation RQ
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decodeItem(CDicomStreamReader $stream_reader)
{
$this->user_identity_type = $stream_reader->readUInt8();
$this->positive_response_requested = $stream_reader->readUInt8();
$this->primary_field_length = $stream_reader->readUInt16();
$this->primary_field = $stream_reader->readString($this->primary_field_length);
$this->secondary_field_length = $stream_reader->readUInt16();
if ($this->secondary_field_length > 0) {
$this->secondary_field = $stream_reader->readString($this->secondary_field_length);
}
}
/**
* Decode the Sop Class Extended Negociation
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decodeItem(CDicomStreamReader $stream_reader)
{
$this->uid_length = $stream_reader->readUInt16();
$this->sop_class_uid = $stream_reader->readUID($this->uid_length);
$this->sca_support = $stream_reader->readUInt8();
$stream_reader->skip(1);
$this->sca_digital_signature_support = $stream_reader->readUInt8();
$stream_reader->skip(1);
$this->sca_element_coercion = $stream_reader->readUInt8();
$stream_reader->skip(1);
}
/**
* Read the type of the PDU from the stream
*
* @param CDicomStreamReader $stream The stream reader
*
* @return string
*/
static function readType(CDicomStreamReader $stream)
{
$tmp = $stream->readUInt8();
$stream->skip(1);
return self::getPDUClass($tmp);
}
/**
* Decode the Implementation Version Name
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decodeItem(CDicomStreamReader $stream_reader)
{
$this->uid_length = $stream_reader->readUInt16();
$this->sop_class_uid = $stream_reader->readUID($this->uid_length);
$this->scu_role = $stream_reader->readUInt8();
$this->scp_role = $stream_reader->readUInt8();
}
/**
* Read the type of an item. If a item type has been read but not decoded, it returns this type.
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return string The name of the item class
*/
static function readItemType(CDicomStreamReader $stream_reader)
{
$item_type = null;
if (!self::$next_item) {
$tmp = $stream_reader->readUInt8();
$stream_reader->skip(1);
if (!$tmp) {
return false;
}
$item_type = self::getItemClass($tmp);
//$stream_reader->readHexByte()];
} else {
$item_type = self::$next_item;
self::$next_item = null;
}
return $item_type;
}
/**
* Decode the field
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decodeField(CDicomStreamReader $stream_reader)
{
$this->class_uid_length = $stream_reader->readUInt8();
$this->class_uid = $stream_reader->readUID($this->class_uid_length);
}
/**
* Decode the PDV
*
* @param CDicomStreamReader $stream_reader The stream reader
*
* @return null
*/
function decode(CDicomStreamReader $stream_reader)
{
// On fait un stream temp pour le message
//$this->length = $stream_reader->readUInt32();
$this->pres_context_id = $stream_reader->readUInt8();
$this->message_control_header = $stream_reader->readUInt8();
$message_length = $this->length - 2;
$message_content = $stream_reader->read($message_length);
$handle = fopen("php://temp", "w+");
fwrite($handle, $message_content);
$message_stream = new CDicomStreamReader($handle);
$message_stream->rewind();
$message_stream->setStreamLength($message_length);
if (!($this->transfer_syntax = $this->getTransferSyntax())) {
/** @todo throw exception **/
}
$this->message = CDicomMessageFactory::decodeMessage($message_stream, $this->message_control_header, $this->transfer_syntax);
$message_stream->close();
$content = substr($stream_reader->buf, 13) . $message_stream->buf;
$this->setBinaryContent($content);
}
