public static SwfMatrix ReadMatrix(this ISwfStreamReader reader)
{
var matrix = SwfMatrix.Identity;
var hasScale = reader.ReadBit();
if (hasScale)
{
var bits = (byte)reader.ReadUnsignedBits(5);
matrix.ScaleX = reader.ReadFixedPoint16(bits);
matrix.ScaleY = reader.ReadFixedPoint16(bits);
}
var hasRotate = reader.ReadBit();
if (hasRotate)
{
var bits = (byte)reader.ReadUnsignedBits(5);
matrix.RotateSkew0 = reader.ReadFixedPoint16(bits);
matrix.RotateSkew1 = reader.ReadFixedPoint16(bits);
}
var translateBits = (byte)reader.ReadUnsignedBits(5);
matrix.TranslateX = reader.ReadSignedBits(translateBits);
matrix.TranslateY = reader.ReadSignedBits(translateBits);
reader.AlignToByte();
return(matrix);
}
public static ButtonRecordEx ReadButtonRecordEx(this ISwfStreamReader reader)
{
var button = new ButtonRecordEx();
button.Reserved = (byte)reader.ReadUnsignedBits(2);
var hasBlendMode = reader.ReadBit();
var hasFilterList = reader.ReadBit();
button.StateHitTest = reader.ReadBit();
button.StateDown = reader.ReadBit();
button.StateOver = reader.ReadBit();
button.StateUp = reader.ReadBit();
var isEnd = !hasBlendMode && !hasFilterList && button.IsEndButton;
if (!isEnd)
{
button.CharacterID = reader.ReadUInt16();
button.PlaceDepth = reader.ReadUInt16();
button.PlaceMatrix = reader.ReadMatrix();
button.ColorTransform = reader.ReadColorTransformRGBA();
reader.AlignToByte();
if (hasFilterList)
{
reader.ReadFilterList(button.Filters);
}
if (hasBlendMode)
{
button.BlendMode = (BlendMode)reader.ReadByte();
}
}
return(button);
}
public static void ReadRect(this ISwfStreamReader reader, out SwfRect rect)
{
var bits = reader.ReadUnsignedBits(5);
rect.XMin = reader.ReadSignedBits(bits);
rect.XMax = reader.ReadSignedBits(bits);
rect.YMin = reader.ReadSignedBits(bits);
rect.YMax = reader.ReadSignedBits(bits);
reader.AlignToByte();
}
public static void ReadToShapeRecordsEx(this ISwfStreamReader reader, IList <IShapeRecordEx> shapeRecords)
{
var fillStyleBits = reader.ReadUnsignedBits(4);
var lineStyleBits = reader.ReadUnsignedBits(4);
reader.AlignToByte();
IShapeRecordEx record;
do
{
record = _shapeRecorExReader.Read(reader, true, ref fillStyleBits, ref lineStyleBits);
shapeRecords.Add(record);
} while (!(record is EndShapeRecord));
}
public static IList <TextRecordRGB> ReadTextRecordsRGB(this ISwfStreamReader reader, uint glyphBits, uint advanceBits)
{
var res = new List <TextRecordRGB>();
bool isEnd;
do
{
var record = new TextRecordRGB();
record.Type = reader.ReadBit();
record.Reserved = (byte)reader.ReadUnsignedBits(3);
var hasFont = reader.ReadBit();
var hasColor = reader.ReadBit();
var hasYOffset = reader.ReadBit();
var hasXOffset = reader.ReadBit();
isEnd = !record.Type && record.Reserved == 0 && !hasFont && !hasColor && !hasYOffset && !hasXOffset;
if (!isEnd)
{
record.FontID = hasFont ? (ushort?)reader.ReadUInt16() : null;
if (hasColor)
{
record.TextColor = reader.ReadRGB();
}
if (hasXOffset)
{
record.XOffset = reader.ReadSInt16();
}
if (hasYOffset)
{
record.YOffset = reader.ReadSInt16();
}
if (hasFont)
{
record.TextHeight = reader.ReadUInt16();
}
var count = reader.ReadByte();
for (var i = 0; i < count; i++)
{
var entry = reader.ReadGlyphEntry(glyphBits, advanceBits);
record.Glyphs.Add(entry);
}
reader.AlignToByte();
}
res.Add(record);
} while (!isEnd);
return(res);
}
public static void ReadColorTransformRGBA(this ISwfStreamReader reader, out ColorTransformRGBA transform)
{
var hasAddTerms = reader.ReadBit();
var hasMultTerms = reader.ReadBit();
var bits = reader.ReadUnsignedBits(4);
if (hasMultTerms)
{
transform.RedMultTerm = (short)reader.ReadSignedBits(bits);
transform.GreenMultTerm = (short)reader.ReadSignedBits(bits);
transform.BlueMultTerm = (short)reader.ReadSignedBits(bits);
transform.AlphaMultTerm = (short)reader.ReadSignedBits(bits);
transform.HasMultTerms = true;
}
else
{
transform.RedMultTerm = 0;
transform.GreenMultTerm = 0;
transform.BlueMultTerm = 0;
transform.AlphaMultTerm = 0;
transform.HasMultTerms = false;
}
if (hasAddTerms)
{
transform.RedAddTerm = (short)reader.ReadSignedBits(bits);
transform.GreenAddTerm = (short)reader.ReadSignedBits(bits);
transform.BlueAddTerm = (short)reader.ReadSignedBits(bits);
transform.AlphaAddTerm = (short)reader.ReadSignedBits(bits);
transform.HasAddTerms = true;
}
else
{
transform.RedAddTerm = 0;
transform.GreenAddTerm = 0;
transform.BlueAddTerm = 0;
transform.AlphaAddTerm = 0;
transform.HasAddTerms = false;
}
reader.AlignToByte();
}
public static ColorTransformRGB ReadColorTransformRGB(this ISwfStreamReader reader)
{
ColorTransformRGB transform;
var hasAddTerms = reader.ReadBit();
var hasMultTerms = reader.ReadBit();
var bits = reader.ReadUnsignedBits(4);
if (hasMultTerms)
{
transform.RedMultTerm = (short)reader.ReadSignedBits(bits);
transform.GreenMultTerm = (short)reader.ReadSignedBits(bits);
transform.BlueMultTerm = (short)reader.ReadSignedBits(bits);
transform.HasMultTerms = true;
}
else
{
transform.RedMultTerm = 0;
transform.GreenMultTerm = 0;
transform.BlueMultTerm = 0;
transform.HasMultTerms = false;
}
if (hasAddTerms)
{
transform.RedAddTerm = (short)reader.ReadSignedBits(bits);
transform.GreenAddTerm = (short)reader.ReadSignedBits(bits);
transform.BlueAddTerm = (short)reader.ReadSignedBits(bits);
transform.HasAddTerms = true;
}
else
{
transform.RedAddTerm = 0;
transform.GreenAddTerm = 0;
transform.BlueAddTerm = 0;
transform.HasAddTerms = false;
}
reader.AlignToByte();
return(transform);
}