public static IEnumerable<ShapeRecord> ReadShape(SwfStream swf, bool hasAlpha, bool isExtended, bool hasStyle, bool extendedStyles)
{
ShapeState state = new ShapeState();
swf.Align();
if (hasStyle)
{
state.FillStyles = new FillStyleArray(swf, hasAlpha);
state.LineStyles = new LineStyleArray(swf, hasAlpha, isExtended);
}
else
{
state.FillStyles = new FillStyleArray();
state.LineStyles = new LineStyleArray();
}
state.FillBits = (int)swf.ReadBitUInt(4);
state.LineBits = (int)swf.ReadBitUInt(4);
ShapeRecord rec;
while (true)
{
rec = new ShapeRecord(swf, hasAlpha, isExtended, extendedStyles, state);
if (rec.Type == ShapeRecord.ShapeRecordType.EndOfShape)
break;
yield return rec;
}
}
public GradientInfo(SwfStream swf, bool hasAlpha)
{
swf.Align();
PadMode = (Padding)swf.ReadBitUInt(2);
InterpolationMode = (Interpolation)swf.ReadBitUInt(2);
GradientStops = new GradRecord[swf.ReadBitUInt(4)];
for (int i = 0; i < GradientStops.Length; i++)
GradientStops[i] = new GradRecord(swf, hasAlpha);
}
public ShapeRecord(SwfStream swf, bool hasAlpha, bool isExtended, bool extendedStyles, ShapeState state)
{
int f0 = 0, f1 = 0, l = 0;
mFlags = swf.ReadBitUInt(6);
Type = ConvertType(mFlags);
switch (Type)
{
case ShapeRecordType.StyleChange:
{
if (NewMoveTo)
{
int bits = (int)swf.ReadBitUInt(5);
MoveDeltaX = swf.ReadBitInt(bits);
MoveDeltaY = swf.ReadBitInt(bits);
}
if (NewFillStyle0) f0 = ((int)swf.ReadBitUInt(state.FillBits));
if (NewFillStyle1) f1 = ((int)swf.ReadBitUInt(state.FillBits));
if (NewLineStyle) l = ((int)swf.ReadBitUInt(state.LineBits));
if (NewStyles && extendedStyles)
{
state.FillStyles = new FillStyleArray(swf, hasAlpha);
state.LineStyles = new LineStyleArray(swf, hasAlpha, isExtended);
state.FillBits = (int)swf.ReadBitUInt(4);
state.LineBits = (int)swf.ReadBitUInt(4);
}
if (NewFillStyle0) FillStyle0 = state.GetFill(f0);
if (NewFillStyle1) FillStyle1 = state.GetFill(f1);
if (NewLineStyle) LineStyle = state.GetLine(l);
}
break;
case ShapeRecordType.StraightEdge:
{
int bits = 2 + (int)(mFlags & 0x0F);
bool general = swf.ReadBit();
bool vert = general || swf.ReadBit();
DrawDeltaX = (general || !vert) ? swf.ReadBitInt(bits) : 0;
DrawDeltaY = (general || vert) ? swf.ReadBitInt(bits) : 0;
}
break;
case ShapeRecordType.CurvedEdge:
{
int bits = 2 + (int)(mFlags & 0x0F);
DrawControlX = swf.ReadBitInt(bits);
DrawControlY = swf.ReadBitInt(bits);
DrawDeltaX = swf.ReadBitInt(bits);
DrawDeltaY = swf.ReadBitInt(bits);
}
break;
}
}
public LineStyle(SwfStream swf, bool hasAlpha, bool isExtended, int index)
{
Index = index;
if (isExtended)
{
Width = swf.ReadUShort();
StartCapStyle = ReadCap(swf);
JoinStyle = ReadJoin(swf);
HasFill = swf.ReadBit();
NoHScale = swf.ReadBit();
NoVScale = swf.ReadBit();
PixelHinting = swf.ReadBit();
swf.ReadBitUInt(5); // Reserved
NoClose = swf.ReadBit();
EndCapStyle = ReadCap(swf);
if (JoinStyle == VGLineJoin.Miter)
MiterLimit = swf.ReadFixedHalf();
if (HasFill)
Fill = new FillStyle(swf, hasAlpha, -1);
else
Color = swf.ReadRGBA();
}
else
{
Width = swf.ReadUShort();
Color = hasAlpha ? swf.ReadRGBA() : swf.ReadRGB();
StartCapStyle = VGLineCap.Round;
EndCapStyle = VGLineCap.Round;
JoinStyle = VGLineJoin.Round;
HasFill = false;
NoHScale = false;
NoVScale = false;
PixelHinting = false;
NoClose = false;
MiterLimit = 1m;
Fill = null;
}
if (Width < 1) Width = 1;
}
private VGLineJoin ReadJoin(SwfStream swf)
{
switch (swf.ReadBitUInt(2))
{
case 0: return VGLineJoin.Round;
case 1: return VGLineJoin.Bevel;
case 2: return VGLineJoin.Miter;
}
throw new SwfCorruptedException("Inavlid line join value!");
}
private VGLineCap ReadCap(SwfStream swf)
{
switch (swf.ReadBitUInt(2))
{
case 0: return VGLineCap.Round;
case 1: return VGLineCap.Butt;
case 2: return VGLineCap.Square;
}
throw new SwfCorruptedException("Inavlid line cap value!");
}
public GlyphEntry(SwfStream stream, int glyphBits, int advanceBits)
{
GlyphIndex = stream.ReadBitUInt(glyphBits);
GlyphAdvance = stream.ReadBitInt(advanceBits);
}