private bool ReadHeader()
{
// Signature
_swf.ReadUI8(3);
// File version
_swf.ReadUI8();
// File length
_swf.ReadUI32();
// The swf is Zlib compressed from here on
_swf.Stream.ReadByte(); // The first two bytes are Zlib info
_swf.Stream.ReadByte(); //
DeflateStream inflatedStream = new DeflateStream(_stream, CompressionMode.Decompress);
_swf.Stream = inflatedStream;
// Frame size
int nBits = (int)_swf.ReadUB(5);
_swf.ReadSB(nBits);
_swf.ReadSB(nBits);
_swf.ReadSB(nBits);
_swf.ReadSB(nBits);
// Frame rate (stored in UI8.UI8 format)
_swf.ReadUI8();
_swf.ReadUI8();
// Frame count
_swf.ReadUI16();
return(true);
}
public Tag(SwfReader swf)
{
ushort tagInfo = swf.ReadUI16();
Code = (ushort)(tagInfo >> 6);
Length = (ulong)(tagInfo & 0x3f);
// Is this a long data block?
if (Length == 0x3f)
{
Length = swf.ReadUI32();
}
switch (Code)
{
// DefineBitsLossless2
case 36:
ulong remainingLength = Length - 7;
Png.CharacterId = swf.ReadUI16();
Png.BitmapFormat = swf.ReadUI8();
Png.BitmapWidth = swf.ReadUI16();
Png.BitmapHeight = swf.ReadUI16();
List<byte> compressedPixelData = new List<byte>();
for (ulong b = 0; b < remainingLength; b++)
{
compressedPixelData.Add(swf.ReadByte());
}
byte[] compressedBitMapPixelData = compressedPixelData.ToArray();
Stream pixelStream = new MemoryStream(compressedBitMapPixelData);
pixelStream.ReadByte();
pixelStream.ReadByte();
DeflateStream inflatedStream = new DeflateStream(pixelStream, CompressionMode.Decompress);
pixelStream = inflatedStream;
for (long c = 0; c < Png.BitmapArea; c++)
{
byte alpha = Convert.ToByte(pixelStream.ReadByte());
byte red = Convert.ToByte(pixelStream.ReadByte());
byte green = Convert.ToByte(pixelStream.ReadByte());
byte blue = Convert.ToByte(pixelStream.ReadByte());
Png.BitmapPixelData.AddRange(new[] { blue, green, red, alpha });
}
break;
// SymbolClass
case 76:
ushort numSymbols = swf.ReadUI16();
for (ushort s = 0; s < numSymbols; s++)
{
short tagId = swf.ReadSI16();
string tagName = swf.ReadSTRING();
string prettyName = Regex.Replace(tagName, @"ImagePack_((items)|(masteryIcons)|(spells))_Embeds__e_(Spell_)?", "");
if (!Symbols.ContainsKey(tagId)) {
Symbols[tagId] = prettyName;
}
}
break;
// Everything Else
default:
for (ulong index = 0; index < Length; index++)
{
swf.Stream.ReadByte();
}
break;
}
}
public Tag(SwfReader swf)
{
ushort tagInfo = swf.ReadUI16();
Code = (ushort)(tagInfo >> 6);
Length = (ulong)(tagInfo & 0x3f);
// Is this a long data block?
if (Length == 0x3f)
{
Length = swf.ReadUI32();
}
switch (Code)
{
// DefineBitsLossless2
case 36:
ulong remainingLength = Length - 7;
Png.CharacterId = swf.ReadUI16();
Png.BitmapFormat = swf.ReadUI8();
Png.BitmapWidth = swf.ReadUI16();
Png.BitmapHeight = swf.ReadUI16();
List <byte> compressedPixelData = new List <byte>();
for (ulong b = 0; b < remainingLength; b++)
{
compressedPixelData.Add(swf.ReadByte());
}
byte[] compressedBitMapPixelData = compressedPixelData.ToArray();
Stream pixelStream = new MemoryStream(compressedBitMapPixelData);
pixelStream.ReadByte();
pixelStream.ReadByte();
DeflateStream inflatedStream = new DeflateStream(pixelStream, CompressionMode.Decompress);
pixelStream = inflatedStream;
for (long c = 0; c < Png.BitmapArea; c++)
{
byte alpha = Convert.ToByte(pixelStream.ReadByte());
byte red = Convert.ToByte(pixelStream.ReadByte());
byte green = Convert.ToByte(pixelStream.ReadByte());
byte blue = Convert.ToByte(pixelStream.ReadByte());
Png.BitmapPixelData.AddRange(new[] { blue, green, red, alpha });
}
break;
// SymbolClass
case 76:
ushort numSymbols = swf.ReadUI16();
for (ushort s = 0; s < numSymbols; s++)
{
short tagId = swf.ReadSI16();
string tagName = swf.ReadSTRING();
string prettyName = Regex.Replace(tagName, @"ImagePack_((items)|(masteryIcons)|(spells))_Embeds__e_(Spell_)?", "");
if (!Symbols.ContainsKey(tagId))
{
Symbols[tagId] = prettyName;
}
}
break;
// Everything Else
default:
for (ulong index = 0; index < Length; index++)
{
swf.Stream.ReadByte();
}
break;
}
}
