/**
* @param string $data
* @param integer $width in bytes or (pixels/8)
* @param integer $height in bits or pixels
*
* @throws ExceptionCommand
*/
private function isValidData($data, $width, $height)
{
// Actual data size in bytes
$actualDataSize = strlen($data) / 8;
// Calculated data size in bytes
$calculatedDataSize = $width * ($height / 8);
if ($actualDataSize !== $calculatedDataSize) {
throw ExceptionCommand::invalidDataSize($actualDataSize, $calculatedDataSize);
}
}
