public DecodedPNGData(IdatChunk idatChunk, IhdrChunk ihdrChunk, PlteChunk plteChunk, string decodedIdat, string unfilteredDatastreamString, string filteredDatastreamString, byte[] unfilteredIdatDatastream, int scanlineLenght)
{
IdatChunk = idatChunk;
IhdrChunk = ihdrChunk;
PlteChunk = plteChunk;
DecodedIdat = decodedIdat;
UnfilteredDatastreamString = unfilteredDatastreamString;
FilteredDatastreamString = filteredDatastreamString;
UnfilteredIdatDatastream = unfilteredIdatDatastream;
ScanlineLenght = scanlineLenght;
}
internal DecodedPNGData DecodeByteArray(byte[] arrayByte)
{
IdatChunk idatChunk = ReadIdatChunk(arrayByte);
PlteChunk plteChunk = ReadPlteChunk(arrayByte);
IhdrChunk ihdrChunk = ReadIhdrChunk(arrayByte);
int scanlineLenght = CalculateScanlineLenght(ihdrChunk);
byte[] unfilteredIdatDatastream = UnfilterImageDatastream(scanlineLenght, idatChunk, ihdrChunk);
string decodedBytes = PrintBytesToString(arrayByte, 8);
string decodedAscii = PrintBytesToAsciiString(arrayByte);
string decodedIdat = PrintBytesToString(idatChunk.DatastreamBytes, scanlineLenght);
string unfilteredDatastreamString = PrintBytesToString(unfilteredIdatDatastream, scanlineLenght - 1);
string filteredDatastreamString = PrintBytesToString(idatChunk.DatastreamBytes, scanlineLenght);
return(new DecodedPNGData(idatChunk, ihdrChunk, plteChunk, decodedIdat, unfilteredDatastreamString, filteredDatastreamString, unfilteredIdatDatastream, scanlineLenght));
}
private void _read()
{
_len = m_io.ReadU4be();
_type = System.Text.Encoding.GetEncoding("UTF-8").GetString(m_io.ReadBytes(4));
switch (Type)
{
case "iTXt": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new InternationalTextChunk(io___raw_body, this, m_root);
break;
}
case "gAMA": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new GamaChunk(io___raw_body, this, m_root);
break;
}
case "tIME": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new TimeChunk(io___raw_body, this, m_root);
break;
}
case "PLTE": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new PlteChunk(io___raw_body, this, m_root);
break;
}
case "bKGD": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new BkgdChunk(io___raw_body, this, m_root);
break;
}
case "pHYs": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new PhysChunk(io___raw_body, this, m_root);
break;
}
case "tEXt": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new TextChunk(io___raw_body, this, m_root);
break;
}
case "cHRM": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new ChrmChunk(io___raw_body, this, m_root);
break;
}
case "sRGB": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new SrgbChunk(io___raw_body, this, m_root);
break;
}
case "zTXt": {
__raw_body = m_io.ReadBytes(Len);
var io___raw_body = new KaitaiStream(__raw_body);
_body = new CompressedTextChunk(io___raw_body, this, m_root);
break;
}
default: {
_body = m_io.ReadBytes(Len);
break;
}
}
_crc = m_io.ReadBytes(4);
}