public void Set(string stream)
{
SubBlocks = new List <string>();
Debug.Log("IMAGE DATA: " + stream);
int index, total, subBlockLength;
string temp;
LZWCompressionSize = GifHelper.HexToDecimal(stream.Substring(0, 2));
Debug.Log("LZW minimum code size: " + LZWCompressionSize);
index = 2;
total = 2;
for (int i = 0; i < stream.Length; i++)
{
subBlockLength = GifHelper.HexToDecimal(stream.Substring(index, 2)) * 2;
index += 2;
if (subBlockLength == 0)
{
Debug.LogWarning("byte index in image data: " + index + " /" + stream.Length.ToString());
//Debug.Log("number of sub blocks:" + SubBlocks.Count);
break;
}
Debug.Log("sub block length: " + subBlockLength);
total += subBlockLength + 2;
temp = stream.Substring(index, subBlockLength);
index += subBlockLength;
SubBlocks.Add(temp);
//Debug.LogWarning("byte index in image data: " + index + " /" + stream.Length.ToString());
}
DecryptImageData(stream);
}
public void Set(string stream)
{
string label = stream.Substring(0, 2);
Debug.Log("IMAGE DESCRIPTOR: " + stream);
if(ImageSeperator != label)
{
Debug.LogError("NOT AN IMAGE SEPERATOR");
}
string redrawLeftHex = stream.Substring(4, 2) + stream.Substring(2, 2);
Left = GifHelper.HexToDecimal(redrawLeftHex);
string redrawTopHex = stream.Substring(8, 2) + stream.Substring(6, 2);
Top = GifHelper.HexToDecimal(redrawTopHex);
string redrawWidthHex = stream.Substring(12, 2) + stream.Substring(10, 2);
Width = GifHelper.HexToDecimal(redrawWidthHex);
string redrawHeightHex = stream.Substring(16, 2) + stream.Substring(14, 2);
Height = GifHelper.HexToDecimal(redrawHeightHex);
string PacketField = stream.Substring(18, 2);
//Debug.LogWarning("Resize Left: " + Left);
//Debug.LogWarning("Resize Top: " + Top);
//Debug.LogWarning("Resize Width: " + Width);
//Debug.LogWarning("Resize Height: " + Height);
//Debug.LogWarning("PacketField: " + PacketField);
packetFieldDecrypt(PacketField);
}
private void packetFieldDecrypt(string input)
{
string packetField = GifHelper.HexToBinary(input);
LocalColorTableFlag = packetField.Substring(0, 1) == "1";
InterlaceFlag = packetField.Substring(1, 1) == "1";
SortFlag = packetField.Substring(2, 1) =="1";
ResevedForFutureUse = packetField.Substring(3, 2);
LocalColorTableSize = GifHelper.HexToDecimal(packetField.Substring(5, 3));
}
private void PacketField(string packetField)
{
packetField = GifHelper.HexToBinary(packetField);
//Debug.LogWarning("GCE PACKET FIELD BINARY: " + packetField);
FutureUse = GifHelper.HexToDecimal(packetField.Substring(0, 3));
DisposalMethod = GifHelper.HexToDecimal(packetField.Substring(3, 3));
UserInput = packetField.Substring(6, 1) == "1";
HasTransparency = packetField.Substring(7, 1) == "1";
}
public void Set(string stream)
{
Debug.Log("APPLICATION EXTENSION: " + stream);
string extension = stream.Substring(0, 2);
string label = stream.Substring(2, 2);
if (label != ExtensionLabel)
{
Debug.LogError("NOT AN APPLICATION EXTENSION");
}
BlockSize = GifHelper.HexToDecimal(stream.Substring(4, 2));
ApplicationIdentifier = GifHelper.HexToASCII(stream.Substring(6, 16));
AuthenticationCode = GifHelper.HexToASCII(stream.Substring(22, 6));
}
//The likely hood of this next coding working is minimal at best but I will do my best anyways
private void LZW_Decompress(string hex)
{
List <int> data = new List <int>();
//convert the strig data to a list of integers
for (int i = 0; i < hex.Length; i += 2)
{
string temp = hex.Substring(i, 2);
data.Add(GifHelper.HexToDecimal(temp));
}
//create our dictionary or code table
//our dictionary is the doce table
for (int i = 0; i < 256; i++)
{
codeTable.Add(i, ((char)i).ToString());
}
}
public void Set(string stream)
{
Debug.Log("LOGICAL DESCRIPTOR: " + stream);
string widthHex = stream.Substring(2, 2) + stream.Substring(0, 2);
string heightHex = stream.Substring(6, 2) + stream.Substring(4, 2);
Width = GifHelper.HexToDecimal(widthHex);
Height = GifHelper.HexToDecimal(heightHex);
string BgColor = stream.Substring(10, 2);
BackgroundColorIndex = GifHelper.HexToDecimal(BgColor);
string AspectRatio = stream.Substring(12, 2);
PixelAspectRatio = GifHelper.HexToDecimal(AspectRatio);
DecodePacketField(stream.Substring(8, 2));
}
public void Set(string stream)
{
Debug.Log("GRAPHICS CONTROL EXTENSION: " + stream);
ErrorCheck(stream);
string size = stream.Substring(4, 2);
size = GifHelper.HexToBinary(size);
BlockSize = (int)Convert.ToInt64(size, 2);
string packetField = stream.Substring(6, 2);
PacketField(packetField);
string delay = stream.Substring(8, 4);
Delay = GifHelper.HexToDecimal(delay);
string transparentIndex = stream.Substring(12, 2);
TransparencyIndex = GifHelper.HexToDecimal(transparentIndex);
//Debug.LogWarning("GCE TRANSPARENCY INDEX: " + TransparencyIndex);
}
public void Set(string data)
{
R = GifHelper.HexToDecimal(data.Substring(0, 2));
G = GifHelper.HexToDecimal(data.Substring(2, 2));
B = GifHelper.HexToDecimal(data.Substring(4, 2));
}
