private IShape ParseDefineShape4(SWFDataTypeReader shapeReader)
{
Rect bounds = shapeReader.ReadRect();
shapeReader.Align8();
Rect edgeBounds = shapeReader.ReadRect();
shapeReader.Align8();
shapeReader.ReadUBits(5); /* Reserved: 0 */
bool usesFillWinding = shapeReader.ReadBit();
bool usesNonScalingStrokes = shapeReader.ReadBit();
bool usesScalingStrokes = shapeReader.ReadBit();
ShapeDef sws = this.ReadShapeDef(shapeReader, Tag.DefineShape4, true, null, null);
return(new Shape()
{
ShapeDef = sws,
Bounds = bounds,
UsesScalingStrokes = usesScalingStrokes,
UsesNonScalingStrokes = usesNonScalingStrokes,
UsesFillWinding = usesFillWinding
});
}
private ShapeDef ReadShapeDef(SWFDataTypeReader shapeReader, Tag format, bool withStyle, IFillStyle[] fillStyles, ILineStyle[] lineStyles)
{
ShapeDef shapeDef = new ShapeDef();
/* Shapes either don't have fill styles (Font glyphs), they come with a bunch of fill styles
* (Regular shapes) or are preceeded by fill styles which are passed into this method
* (Morph shapes). Could probably be tidier... */
if (fillStyles != null)
{
shapeDef.FillStyles.AddRange(fillStyles);
}
if (lineStyles != null)
{
shapeDef.LineStyles.AddRange(lineStyles);
}
if (withStyle)
{
shapeDef.FillStyles.AddRange(this.ReadFillStyleArray(shapeReader, format));
shapeReader.Align8();
shapeDef.LineStyles.AddRange(this.ReadLineStyleArray(shapeReader, format));
shapeReader.Align8();
}
/* Read the shape stuff... */
int fillBits = (int)shapeReader.ReadUBits(4);
int lineBits = (int)shapeReader.ReadUBits(4);
this.ReadShapeRecordsInto(shapeDef, shapeReader, ref fillBits, ref lineBits, format);
return(shapeDef);
}
private FillStyle ReadFillStyle(SWFDataTypeReader shapeReader, Tag format)
{
FillStyle style = new FillStyle();
style.Type = (FillType)shapeReader.ReadUI8();
if (style.Type == FillType.Solid)
{
if (format == Tag.DefineShape3 || format == Tag.DefineShape4) /* Assuming shape4 goes here. Spec is ambiguous. */
{
style.Colour = shapeReader.ReadRGBA();
}
else if (format == Tag.DefineShape || format == Tag.DefineShape2)
{
style.Colour = shapeReader.ReadRGB();
}
else
{
throw new SWFModellerException(SWFModellerError.SWFParsing, "Bad tag format for fill style");
}
}
if (style.Type == FillType.LinearGradient ||
style.Type == FillType.RadialGradient ||
style.Type == FillType.FocalGradient)
{
style.FillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
if (style.Type == FillType.LinearGradient ||
style.Type == FillType.RadialGradient)
{
style.Gradient = this.ReadGradient(shapeReader, format);
}
else /* FocalGradient */
{
style.Gradient = this.ReadFocalGradient(shapeReader);
}
}
if (FillTypes.IsBitmap(style.Type))
{
int cid = shapeReader.ReadUI16();
/* Some fills have this magic number in them which seems to deliberately not
* reference a bitmap. The spec is silent on the matter. Oh flash, you
* stammering ape. */
if (cid != 0x0000FFFF)
{
style.Bitmap = this.ImageFinder.FindImage(cid);
}
style.FillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
}
return(style);
}
private MorphFillStyle ReadMorphFillStyle(SWFDataTypeReader shapeReader)
{
MorphFillStyle style = new MorphFillStyle();
style.Type = (FillType)shapeReader.ReadUI8();
if (style.Type == FillType.Solid)
{
style.StartColour = shapeReader.ReadRGBA();
style.EndColour = shapeReader.ReadRGBA();
}
if (style.Type == FillType.LinearGradient ||
style.Type == FillType.RadialGradient)
{
style.StartFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
style.EndFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
if (style.Type == FillType.LinearGradient ||
style.Type == FillType.RadialGradient)
{
style.Gradient = this.ReadMorphGradient(shapeReader);
}
}
if (FillTypes.IsBitmap(style.Type))
{
int cid = shapeReader.ReadUI16();
/* Some fills have this magic number in them which seems to deliberately not
* reference a bitmap. The spec is silent on the matter. Oh flash, you
* bumbling simian. */
if (cid != 0x0000FFFF)
{
style.Bitmap = this.ImageFinder.FindImage(cid);
}
style.StartFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
style.EndFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
}
return(style);
}
private IShape ParseDefineMorphShape(SWFDataTypeReader shapeReader, Tag format)
{
Rect startBounds = shapeReader.ReadRect();
shapeReader.Align8();
Rect endBounds = shapeReader.ReadRect();
shapeReader.Align8();
Rect startEdgeBounds = null;
Rect endEdgeBounds = null;
bool usesNonScalingStrokes = false;
bool usesScalingStrokes = false;
if (format == Tag.DefineMorphShape2)
{
startEdgeBounds = shapeReader.ReadRect();
shapeReader.Align8();
endEdgeBounds = shapeReader.ReadRect();
shapeReader.Align8();
/*(void)*/ shapeReader.ReadUBits(6); /* Reserved. Assume 0 */
usesNonScalingStrokes = shapeReader.ReadBit();
usesScalingStrokes = shapeReader.ReadBit();
}
/*(void)*/ shapeReader.ReadUI32(); /* end edges offset. We don't need this */
MorphFillStyle[] mfsa = this.ReadMorphFillStyleArray(shapeReader);
MorphLineStyle[] mlsa = this.ReadMorphLineStyleArray(shapeReader, format);
ShapeDef startShape = this.ReadShapeDef(shapeReader, format, false, mfsa, mlsa);
ShapeDef endShape = this.ReadShapeDef(shapeReader, format, false, mfsa, mlsa);
return(new MorphShape()
{
Bounds = startBounds,
EndBounds = endBounds,
StartEdgeBounds = startEdgeBounds,
EndEdgeBounds = endEdgeBounds,
UsesNonScalingStrokes = usesNonScalingStrokes,
UsesScalingStrokes = usesScalingStrokes,
StartShape = startShape,
EndShape = endShape
});
}
private IShape ParseDefineMorphShape(SWFDataTypeReader shapeReader, Tag format)
{
Rect startBounds = shapeReader.ReadRect();
shapeReader.Align8();
Rect endBounds = shapeReader.ReadRect();
shapeReader.Align8();
Rect startEdgeBounds = null;
Rect endEdgeBounds = null;
bool usesNonScalingStrokes = false;
bool usesScalingStrokes = false;
if (format == Tag.DefineMorphShape2)
{
startEdgeBounds = shapeReader.ReadRect();
shapeReader.Align8();
endEdgeBounds = shapeReader.ReadRect();
shapeReader.Align8();
/*(void)*/shapeReader.ReadUBits(6); /* Reserved. Assume 0 */
usesNonScalingStrokes = shapeReader.ReadBit();
usesScalingStrokes = shapeReader.ReadBit();
}
/*(void)*/shapeReader.ReadUI32(); /* end edges offset. We don't need this */
MorphFillStyle[] mfsa = this.ReadMorphFillStyleArray(shapeReader);
MorphLineStyle[] mlsa = this.ReadMorphLineStyleArray(shapeReader, format);
ShapeDef startShape = this.ReadShapeDef(shapeReader, format, false, mfsa, mlsa);
ShapeDef endShape = this.ReadShapeDef(shapeReader, format, false, mfsa, mlsa);
return new MorphShape()
{
Bounds = startBounds,
EndBounds = endBounds,
StartEdgeBounds = startEdgeBounds,
EndEdgeBounds = endEdgeBounds,
UsesNonScalingStrokes = usesNonScalingStrokes,
UsesScalingStrokes = usesScalingStrokes,
StartShape = startShape,
EndShape = endShape
};
}
private IShape ParseDefineShapeN(SWFDataTypeReader shapeReader, Tag format)
{
Rect bounds = shapeReader.ReadRect();
shapeReader.Align8();
ShapeDef sws = this.ReadShapeDef(shapeReader, format, true, null, null);
return(new Shape()
{
ShapeDef = sws,
Bounds = bounds
});
}
private void ReadShapeRecordsInto(ShapeDef sws, SWFDataTypeReader shapeReader, ref int fillBits, ref int lineBits, Tag format)
{
List <IShapeRecord> records = new List <IShapeRecord>();
int currentX = 0;
int currentY = 0;
while (true)
{
bool isEdgeRecord = shapeReader.ReadBit();
if (isEdgeRecord)
{
if (shapeReader.ReadBit())
{
/* StraightEdgeRecord */
int bpv = 2 + (int)shapeReader.ReadUBits(4);
bool isGeneralLine = shapeReader.ReadBit();
bool isVertical = false;
if (!isGeneralLine)
{
isVertical = shapeReader.ReadBit();
}
int dx = 0;
int dy = 0;
if (isGeneralLine || !isVertical)
{
dx = shapeReader.ReadSBits(bpv);
}
if (isGeneralLine || isVertical)
{
dy = shapeReader.ReadSBits(bpv);
}
currentX += dx;
currentY += dx;
records.Add(new StraightEdge()
{
DX = dx, DY = dy
});
}
else
{
/* CurvedEdgeRecord */
int bpv = 2 + (int)shapeReader.ReadUBits(4);
int ctrlDX = shapeReader.ReadSBits(bpv);
int ctrlDY = shapeReader.ReadSBits(bpv);
int anchorDX = shapeReader.ReadSBits(bpv);
int anchorDY = shapeReader.ReadSBits(bpv);
currentX += ctrlDX + anchorDX;
currentY += ctrlDY + anchorDY;
records.Add(new CurvedEdge()
{
AnchorDX = anchorDX, AnchorDY = anchorDY, CtrlDX = ctrlDX, CtrlDY = ctrlDY
});
}
}
else
{
uint flags = shapeReader.ReadUBits(5);
if (flags == 0)
{
/* EndShapeRecord */
break;
}
/* StyleChangeRecord */
bool stateMoveTo = (flags & 1) == 1;
flags >>= 1;
bool stateFillStyle0 = (flags & 1) == 1;
flags >>= 1;
bool stateFillStyle1 = (flags & 1) == 1;
flags >>= 1;
bool stateLineStyle = (flags & 1) == 1;
flags >>= 1;
bool stateNewStyles = (flags & 1) == 1;
flags >>= 1;
StyleChange sc = new StyleChange();
if (stateMoveTo)
{
int moveBits = (int)shapeReader.ReadUBits(5);
sc.DX = shapeReader.ReadSBits(moveBits);
sc.DY = shapeReader.ReadSBits(moveBits);
currentX = sc.DX.Value;
currentY = sc.DY.Value;
}
if (stateFillStyle0)
{
sc.FillStyle0 = sws.FillFromIndex((int)shapeReader.ReadUBits(fillBits));
}
if (stateFillStyle1)
{
sc.FillStyle1 = sws.FillFromIndex((int)shapeReader.ReadUBits(fillBits));
}
if (stateLineStyle)
{
sc.LineStyle = (int)shapeReader.ReadUBits(lineBits);
}
if (stateNewStyles)
{
sc.NewFillStyles = this.ReadFillStyleArray(shapeReader, format);
sc.NewLineStyles = this.ReadLineStyleArray(shapeReader, format);
fillBits = (int)shapeReader.ReadUBits(4);
lineBits = (int)shapeReader.ReadUBits(4);
/* ISSUE 21: We're storing new styles defined in shape records in two places and
* in such a way that we can't figure out where we got them from. This makes
* it impossible to reconstruct the SWF data. Kinda need to work out how to
* find styles. */
sws.FillStyles.AddRange(sc.NewFillStyles);
sws.LineStyles.AddRange(sc.NewLineStyles);
}
records.Add(sc);
}
}
shapeReader.Align8();
sws.Records = records.ToArray();
}
private void ReadShapeRecordsInto(ShapeDef sws, SWFDataTypeReader shapeReader, ref int fillBits, ref int lineBits, Tag format)
{
List<IShapeRecord> records = new List<IShapeRecord>();
int currentX = 0;
int currentY = 0;
while (true)
{
bool isEdgeRecord = shapeReader.ReadBit();
if (isEdgeRecord)
{
if (shapeReader.ReadBit())
{
/* StraightEdgeRecord */
int bpv = 2 + (int)shapeReader.ReadUBits(4);
bool isGeneralLine = shapeReader.ReadBit();
bool isVertical = false;
if (!isGeneralLine)
{
isVertical = shapeReader.ReadBit();
}
int dx = 0;
int dy = 0;
if (isGeneralLine || !isVertical)
{
dx = shapeReader.ReadSBits(bpv);
}
if (isGeneralLine || isVertical)
{
dy = shapeReader.ReadSBits(bpv);
}
currentX += dx;
currentY += dx;
records.Add(new StraightEdge() { DX = dx, DY = dy });
}
else
{
/* CurvedEdgeRecord */
int bpv = 2 + (int)shapeReader.ReadUBits(4);
int ctrlDX = shapeReader.ReadSBits(bpv);
int ctrlDY = shapeReader.ReadSBits(bpv);
int anchorDX = shapeReader.ReadSBits(bpv);
int anchorDY = shapeReader.ReadSBits(bpv);
currentX += ctrlDX + anchorDX;
currentY += ctrlDY + anchorDY;
records.Add(new CurvedEdge() { AnchorDX = anchorDX, AnchorDY = anchorDY, CtrlDX = ctrlDX, CtrlDY = ctrlDY });
}
}
else
{
uint flags = shapeReader.ReadUBits(5);
if (flags == 0)
{
/* EndShapeRecord */
break;
}
/* StyleChangeRecord */
bool stateMoveTo = (flags & 1) == 1;
flags >>= 1;
bool stateFillStyle0 = (flags & 1) == 1;
flags >>= 1;
bool stateFillStyle1 = (flags & 1) == 1;
flags >>= 1;
bool stateLineStyle = (flags & 1) == 1;
flags >>= 1;
bool stateNewStyles = (flags & 1) == 1;
flags >>= 1;
StyleChange sc = new StyleChange();
if (stateMoveTo)
{
int moveBits = (int)shapeReader.ReadUBits(5);
sc.DX = shapeReader.ReadSBits(moveBits);
sc.DY = shapeReader.ReadSBits(moveBits);
currentX = sc.DX.Value;
currentY = sc.DY.Value;
}
if (stateFillStyle0)
{
sc.FillStyle0 = sws.FillFromIndex((int)shapeReader.ReadUBits(fillBits));
}
if (stateFillStyle1)
{
sc.FillStyle1 = sws.FillFromIndex((int)shapeReader.ReadUBits(fillBits));
}
if (stateLineStyle)
{
sc.LineStyle = (int)shapeReader.ReadUBits(lineBits);
}
if (stateNewStyles)
{
sc.NewFillStyles = this.ReadFillStyleArray(shapeReader, format);
sc.NewLineStyles = this.ReadLineStyleArray(shapeReader, format);
fillBits = (int)shapeReader.ReadUBits(4);
lineBits = (int)shapeReader.ReadUBits(4);
/* ISSUE 21: We're storing new styles defined in shape records in two places and
* in such a way that we can't figure out where we got them from. This makes
* it impossible to reconstruct the SWF data. Kinda need to work out how to
* find styles. */
sws.FillStyles.AddRange(sc.NewFillStyles);
sws.LineStyles.AddRange(sc.NewLineStyles);
}
records.Add(sc);
}
}
shapeReader.Align8();
sws.Records = records.ToArray();
}
private ShapeDef ReadShapeDef(SWFDataTypeReader shapeReader, Tag format, bool withStyle, IFillStyle[] fillStyles, ILineStyle[] lineStyles)
{
ShapeDef shapeDef = new ShapeDef();
/* Shapes either don't have fill styles (Font glyphs), they come with a bunch of fill styles
* (Regular shapes) or are preceeded by fill styles which are passed into this method
* (Morph shapes). Could probably be tidier... */
if (fillStyles != null)
{
shapeDef.FillStyles.AddRange(fillStyles);
}
if (lineStyles != null)
{
shapeDef.LineStyles.AddRange(lineStyles);
}
if (withStyle)
{
shapeDef.FillStyles.AddRange(this.ReadFillStyleArray(shapeReader, format));
shapeReader.Align8();
shapeDef.LineStyles.AddRange(this.ReadLineStyleArray(shapeReader, format));
shapeReader.Align8();
}
/* Read the shape stuff... */
int fillBits = (int)shapeReader.ReadUBits(4);
int lineBits = (int)shapeReader.ReadUBits(4);
this.ReadShapeRecordsInto(shapeDef, shapeReader, ref fillBits, ref lineBits, format);
return shapeDef;
}
private MorphFillStyle ReadMorphFillStyle(SWFDataTypeReader shapeReader)
{
MorphFillStyle style = new MorphFillStyle();
style.Type = (FillType)shapeReader.ReadUI8();
if (style.Type == FillType.Solid)
{
style.StartColour = shapeReader.ReadRGBA();
style.EndColour = shapeReader.ReadRGBA();
}
if (style.Type == FillType.LinearGradient
|| style.Type == FillType.RadialGradient)
{
style.StartFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
style.EndFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
if (style.Type == FillType.LinearGradient
|| style.Type == FillType.RadialGradient)
{
style.Gradient = this.ReadMorphGradient(shapeReader);
}
}
if (FillTypes.IsBitmap(style.Type))
{
int cid = shapeReader.ReadUI16();
/* Some fills have this magic number in them which seems to deliberately not
* reference a bitmap. The spec is silent on the matter. Oh flash, you
* bumbling simian. */
if (cid != 0x0000FFFF)
{
style.Bitmap = this.ImageFinder.FindImage(cid);
}
style.StartFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
style.EndFillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
}
return style;
}
private FillStyle ReadFillStyle(SWFDataTypeReader shapeReader, Tag format)
{
FillStyle style = new FillStyle();
style.Type = (FillType)shapeReader.ReadUI8();
if (style.Type == FillType.Solid)
{
if (format == Tag.DefineShape3 || format == Tag.DefineShape4) /* Assuming shape4 goes here. Spec is ambiguous. */
{
style.Colour = shapeReader.ReadRGBA();
}
else if (format == Tag.DefineShape || format == Tag.DefineShape2)
{
style.Colour = shapeReader.ReadRGB();
}
else
{
throw new SWFModellerException(SWFModellerError.SWFParsing, "Bad tag format for fill style");
}
}
if (style.Type == FillType.LinearGradient
|| style.Type == FillType.RadialGradient
|| style.Type == FillType.FocalGradient)
{
style.FillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
if (style.Type == FillType.LinearGradient
|| style.Type == FillType.RadialGradient)
{
style.Gradient = this.ReadGradient(shapeReader, format);
}
else /* FocalGradient */
{
style.Gradient = this.ReadFocalGradient(shapeReader);
}
}
if (FillTypes.IsBitmap(style.Type))
{
int cid = shapeReader.ReadUI16();
/* Some fills have this magic number in them which seems to deliberately not
* reference a bitmap. The spec is silent on the matter. Oh flash, you
* stammering ape. */
if (cid != 0x0000FFFF)
{
style.Bitmap = this.ImageFinder.FindImage(cid);
}
style.FillMatrix = shapeReader.ReadMatrix();
shapeReader.Align8();
}
return style;
}
private IShape ParseDefineShapeN(SWFDataTypeReader shapeReader, Tag format)
{
Rect bounds = shapeReader.ReadRect();
shapeReader.Align8();
ShapeDef sws = this.ReadShapeDef(shapeReader, format, true, null, null);
return new Shape()
{
ShapeDef = sws,
Bounds = bounds
};
}
private IShape ParseDefineShape4(SWFDataTypeReader shapeReader)
{
Rect bounds = shapeReader.ReadRect();
shapeReader.Align8();
Rect edgeBounds = shapeReader.ReadRect();
shapeReader.Align8();
shapeReader.ReadUBits(5); /* Reserved: 0 */
bool usesFillWinding = shapeReader.ReadBit();
bool usesNonScalingStrokes = shapeReader.ReadBit();
bool usesScalingStrokes = shapeReader.ReadBit();
ShapeDef sws = this.ReadShapeDef(shapeReader, Tag.DefineShape4, true, null, null);
return new Shape()
{
ShapeDef = sws,
Bounds = bounds,
UsesScalingStrokes = usesScalingStrokes,
UsesNonScalingStrokes = usesNonScalingStrokes,
UsesFillWinding = usesFillWinding
};
}