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 LineStyle[] ReadLineStyleArray(SWFDataTypeReader shapeReader, Tag format)
{
int lineCount = shapeReader.ReadUI8();
if (lineCount == 0xFF)
{
lineCount = shapeReader.ReadUI16();
}
LineStyle[] lineStyles = new LineStyle[lineCount];
if (format == Tag.DefineShape4)
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadLineStyle2(shapeReader, format);
}
}
else
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadLineStyle(shapeReader, format);
}
}
return(lineStyles);
}
private FocalGradient ReadFocalGradient(SWFDataTypeReader shapeReader)
{
/* ISSUE 72 */
throw new SWFModellerException(
SWFModellerError.UnimplementedFeature,
"Can't parse focal gradients yet.");
}
private MorphLineStyle[] ReadMorphLineStyleArray(SWFDataTypeReader shapeReader, Tag format)
{
int lineCount = shapeReader.ReadUI8();
if (lineCount == 0xFF)
{
lineCount = shapeReader.ReadUI16();
}
MorphLineStyle[] lineStyles = new MorphLineStyle[lineCount];
if (format == Tag.DefineMorphShape)
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadMorphLineStyle(shapeReader);
}
}
else /* Else Tag.DefineMorphShape2 */
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadMorphLineStyle2(shapeReader);
}
}
return(lineStyles);
}
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 MorphLineStyle ReadMorphLineStyle2(SWFDataTypeReader shapeReader)
{
int startwidth = shapeReader.ReadUI16();
int endwidth = shapeReader.ReadUI16();
CapStyle startCap = (CapStyle)shapeReader.ReadUBits(2);
JoinStyle join = (JoinStyle)shapeReader.ReadUBits(2);
bool hasFill = shapeReader.ReadBit();
bool noHScaling = shapeReader.ReadBit();
bool noVScaling = shapeReader.ReadBit();
bool hasPixelHints = shapeReader.ReadBit();
shapeReader.ReadUBits(5); // Reserved: 0
bool noClose = shapeReader.ReadBit();
CapStyle endCap = (CapStyle)shapeReader.ReadUBits(2);
int?miterLimit = null;
if (join == JoinStyle.Miter)
{
miterLimit = shapeReader.ReadUI16();
}
Color? startColour = null;
Color? endColour = null;
MorphFillStyle fs = null;
if (hasFill)
{
fs = this.ReadMorphFillStyle(shapeReader);
}
else
{
startColour = shapeReader.ReadRGBA();
endColour = shapeReader.ReadRGBA();
}
return(new MorphLineStyle()
{
StartWidth = startwidth,
EndWidth = endwidth,
StartColour = startColour,
EndColour = endColour,
StartCap = startCap,
EndCap = endCap,
Join = join,
HasFill = hasFill,
NoHScaling = noHScaling,
NoVScaling = noVScaling,
HasPixelHints = hasPixelHints,
FillStyle = fs,
MiterLimit = miterLimit
});
}
private MorphLineStyle ReadMorphLineStyle(SWFDataTypeReader shapeReader)
{
return(new MorphLineStyle()
{
StartWidth = shapeReader.ReadUI16(),
EndWidth = shapeReader.ReadUI16(),
StartColour = shapeReader.ReadRGBA(),
EndColour = shapeReader.ReadRGBA()
});
}
private MorphGradientRecord ReadMorphGradientRecord(SWFDataTypeReader shapeReader)
{
MorphGradientRecord mgr = new MorphGradientRecord();
mgr.StartRatio = shapeReader.ReadUI8();
mgr.StartColour = shapeReader.ReadRGBA();
mgr.EndRatio = shapeReader.ReadUI8();
mgr.EndColour = shapeReader.ReadRGBA();
return(mgr);
}
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 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 LineStyle ReadLineStyle2(SWFDataTypeReader shapeReader, Tag format)
{
int width = shapeReader.ReadUI16();
CapStyle startCap = (CapStyle)shapeReader.ReadUBits(2);
JoinStyle join = (JoinStyle)shapeReader.ReadUBits(2);
bool hasFill = shapeReader.ReadBit();
bool noHScaling = shapeReader.ReadBit();
bool noVScaling = shapeReader.ReadBit();
bool hasPixelHints = shapeReader.ReadBit();
shapeReader.ReadUBits(5); /* Reserved: 0 */
bool noClose = shapeReader.ReadBit();
CapStyle endCap = (CapStyle)shapeReader.ReadUBits(2);
int?miterLimit = null;
if (join == JoinStyle.Miter)
{
miterLimit = shapeReader.ReadUI16();
}
Color? c = null;
FillStyle fs = null;
if (hasFill)
{
fs = this.ReadFillStyle(shapeReader, format);
}
else
{
c = shapeReader.ReadRGBA();
}
return(new LineStyle()
{
Width = width,
StartCap = startCap,
EndCap = endCap,
Join = join,
HasFill = hasFill,
NoHScaling = noHScaling,
NoVScaling = noVScaling,
HasPixelHints = hasPixelHints,
Colour = c,
FillStyle = fs,
MiterLimit = miterLimit
});
}
private MorphGradient ReadMorphGradient(SWFDataTypeReader shapeReader)
{
int numGrads = shapeReader.ReadUI8();
MorphGradient mg = new MorphGradient()
{
Records = new MorphGradientRecord[numGrads]
};
for (int i = 0; i < numGrads; i++)
{
mg.Records[i] = this.ReadMorphGradientRecord(shapeReader);
}
return(mg);
}
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
};
}
/* ISSUE 20: Instead of passing the format and reader around, perhaps they should be
* members? Perhaps? Hmm? */
private FillStyle[] ReadFillStyleArray(SWFDataTypeReader shapeReader, Tag format)
{
int fillCount = shapeReader.ReadUI8();
if (fillCount == 0xFF && (format == Tag.DefineShape3 || format == Tag.DefineShape2))
{
fillCount = shapeReader.ReadUI16();
}
FillStyle[] fillStyles = new FillStyle[fillCount];
for (int i = 0; i < fillCount; i++)
{
fillStyles[i] = this.ReadFillStyle(shapeReader, format);
}
return(fillStyles);
}
private MorphFillStyle[] ReadMorphFillStyleArray(SWFDataTypeReader shapeReader)
{
int fillCount = shapeReader.ReadUI8();
if (fillCount == 0xFF)
{
fillCount = shapeReader.ReadUI16();
}
MorphFillStyle[] fillStyles = new MorphFillStyle[fillCount];
for (int i = 0; i < fillCount; i++)
{
fillStyles[i] = this.ReadMorphFillStyle(shapeReader);
}
return(fillStyles);
}
internal IShape Parse(Tag tag, byte[] data, IImageFinder imageFinder)
{
this.ImageFinder = imageFinder;
SWFDataTypeReader shapeReader = new SWFDataTypeReader(new MemoryStream(data));
IShape newShape = null;
switch (tag)
{
case Tag.DefineShape:
case Tag.DefineShape2:
case Tag.DefineShape3:
newShape = this.ParseDefineShapeN(shapeReader, tag);
break;
case Tag.DefineFont3:
/* We do some hackery magic here. Because we happen to know that the only reason
* we parse shapes is to get bitmap references out of them, we skip the actual parsing
* of glyphs because they can't ever have bitmaps in them. We do this by creating
* a fundamentally broken shape which contains nothing but the original shape bytes.
* Oh, for shame. */
return(new Shape()
{
OriginalBytes = data, OriginalFormat = tag
});
case Tag.DefineShape4:
newShape = this.ParseDefineShape4(shapeReader);
break;
case Tag.DefineMorphShape:
case Tag.DefineMorphShape2:
newShape = this.ParseDefineMorphShape(shapeReader, tag);
break;
default:
throw new SWFModellerException(SWFModellerError.Internal, "Can't parse shapes with tag " + tag.ToString());
}
newShape.SetOriginalBytes(data, tag);
return(newShape);
}
private LineStyle ReadLineStyle(SWFDataTypeReader shapeReader, Tag format)
{
LineStyle ls = new LineStyle();
ls.Width = shapeReader.ReadUI16();
if (format == Tag.DefineShape || format == Tag.DefineShape2)
{
ls.Colour = shapeReader.ReadRGB();
}
else if (format == Tag.DefineShape3 || format == Tag.DefineShape4)
{
ls.Colour = shapeReader.ReadRGBA();
}
else
{
throw new SWFModellerException(SWFModellerError.Internal, "Can't line style in shape format " + format.ToString());
}
return(ls);
}
internal IShape Parse(Tag tag, byte[] data, IImageFinder imageFinder)
{
this.ImageFinder = imageFinder;
SWFDataTypeReader shapeReader = new SWFDataTypeReader(new MemoryStream(data));
IShape newShape = null;
switch (tag)
{
case Tag.DefineShape:
case Tag.DefineShape2:
case Tag.DefineShape3:
newShape = this.ParseDefineShapeN(shapeReader, tag);
break;
case Tag.DefineFont3:
/* We do some hackery magic here. Because we happen to know that the only reason
* we parse shapes is to get bitmap references out of them, we skip the actual parsing
* of glyphs because they can't ever have bitmaps in them. We do this by creating
* a fundamentally broken shape which contains nothing but the original shape bytes.
* Oh, for shame. */
return new Shape() { OriginalBytes = data, OriginalFormat = tag };
case Tag.DefineShape4:
newShape = this.ParseDefineShape4(shapeReader);
break;
case Tag.DefineMorphShape:
case Tag.DefineMorphShape2:
newShape = this.ParseDefineMorphShape(shapeReader, tag);
break;
default:
throw new SWFModellerException(SWFModellerError.Internal, "Can't parse shapes with tag " + tag.ToString());
}
newShape.SetOriginalBytes(data, tag);
return newShape;
}
private Gradient ReadGradient(SWFDataTypeReader shapeReader, Tag format)
{
GradientSpread spread = (GradientSpread)shapeReader.ReadUBits(2);
GradientInterpolation interp = (GradientInterpolation)shapeReader.ReadUBits(2);
int numRecs = (int)shapeReader.ReadUBits(4);
GradientRecord[] recs = new GradientRecord[numRecs];
for (int i = 0; i < recs.Length; i++)
{
GradientRecord rec = new GradientRecord();
rec.Ratio = shapeReader.ReadUI8();
if (format == Tag.DefineShape || format == Tag.DefineShape2)
{
rec.Colour = shapeReader.ReadRGB();
}
else if (format == Tag.DefineShape3 || format == Tag.DefineShape4)
{
rec.Colour = shapeReader.ReadRGBA();
}
else
{
throw new SWFModellerException(SWFModellerError.Internal, "Can't read gradient in shape format " + format.ToString());
}
recs[i] = rec;
}
return(new Gradient()
{
Records = recs,
Interpolation = interp,
Spread = spread
});
}
private FocalGradient ReadFocalGradient(SWFDataTypeReader shapeReader)
{
/* ISSUE 72 */
throw new SWFModellerException(
SWFModellerError.UnimplementedFeature,
"Can't parse focal gradients yet.");
}
private MorphLineStyle ReadMorphLineStyle2(SWFDataTypeReader shapeReader)
{
int startwidth = shapeReader.ReadUI16();
int endwidth = shapeReader.ReadUI16();
CapStyle startCap = (CapStyle)shapeReader.ReadUBits(2);
JoinStyle join = (JoinStyle)shapeReader.ReadUBits(2);
bool hasFill = shapeReader.ReadBit();
bool noHScaling = shapeReader.ReadBit();
bool noVScaling = shapeReader.ReadBit();
bool hasPixelHints = shapeReader.ReadBit();
shapeReader.ReadUBits(5); // Reserved: 0
bool noClose = shapeReader.ReadBit();
CapStyle endCap = (CapStyle)shapeReader.ReadUBits(2);
int? miterLimit = null;
if (join == JoinStyle.Miter)
{
miterLimit = shapeReader.ReadUI16();
}
Color? startColour = null;
Color? endColour = null;
MorphFillStyle fs = null;
if (hasFill)
{
fs = this.ReadMorphFillStyle(shapeReader);
}
else
{
startColour = shapeReader.ReadRGBA();
endColour = shapeReader.ReadRGBA();
}
return new MorphLineStyle()
{
StartWidth = startwidth,
EndWidth = endwidth,
StartColour = startColour,
EndColour = endColour,
StartCap = startCap,
EndCap = endCap,
Join = join,
HasFill = hasFill,
NoHScaling = noHScaling,
NoVScaling = noVScaling,
HasPixelHints = hasPixelHints,
FillStyle = fs,
MiterLimit = miterLimit
};
}
private Gradient ReadGradient(SWFDataTypeReader shapeReader, Tag format)
{
GradientSpread spread = (GradientSpread)shapeReader.ReadUBits(2);
GradientInterpolation interp = (GradientInterpolation)shapeReader.ReadUBits(2);
int numRecs = (int)shapeReader.ReadUBits(4);
GradientRecord[] recs = new GradientRecord[numRecs];
for (int i = 0; i < recs.Length; i++)
{
GradientRecord rec = new GradientRecord();
rec.Ratio = shapeReader.ReadUI8();
if (format == Tag.DefineShape || format == Tag.DefineShape2)
{
rec.Colour = shapeReader.ReadRGB();
}
else if (format == Tag.DefineShape3 || format == Tag.DefineShape4)
{
rec.Colour = shapeReader.ReadRGBA();
}
else
{
throw new SWFModellerException(SWFModellerError.Internal, "Can't read gradient in shape format " + format.ToString());
}
recs[i] = rec;
}
return new Gradient()
{
Records = recs,
Interpolation = interp,
Spread = spread
};
}
private LineStyle ReadLineStyle(SWFDataTypeReader shapeReader, Tag format)
{
LineStyle ls = new LineStyle();
ls.Width = shapeReader.ReadUI16();
if (format == Tag.DefineShape || format == Tag.DefineShape2)
{
ls.Colour = shapeReader.ReadRGB();
}
else if (format == Tag.DefineShape3 || format == Tag.DefineShape4)
{
ls.Colour = shapeReader.ReadRGBA();
}
else
{
throw new SWFModellerException(SWFModellerError.Internal, "Can't line style in shape format " + format.ToString());
}
return ls;
}
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 LineStyle[] ReadLineStyleArray(SWFDataTypeReader shapeReader, Tag format)
{
int lineCount = shapeReader.ReadUI8();
if (lineCount == 0xFF)
{
lineCount = shapeReader.ReadUI16();
}
LineStyle[] lineStyles = new LineStyle[lineCount];
if (format == Tag.DefineShape4)
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadLineStyle2(shapeReader, format);
}
}
else
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadLineStyle(shapeReader, format);
}
}
return lineStyles;
}
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 MorphFillStyle[] ReadMorphFillStyleArray(SWFDataTypeReader shapeReader)
{
int fillCount = shapeReader.ReadUI8();
if (fillCount == 0xFF)
{
fillCount = shapeReader.ReadUI16();
}
MorphFillStyle[] fillStyles = new MorphFillStyle[fillCount];
for (int i = 0; i < fillCount; i++)
{
fillStyles[i] = this.ReadMorphFillStyle(shapeReader);
}
return fillStyles;
}
private MorphGradient ReadMorphGradient(SWFDataTypeReader shapeReader)
{
int numGrads = shapeReader.ReadUI8();
MorphGradient mg = new MorphGradient()
{
Records = new MorphGradientRecord[numGrads]
};
for (int i = 0; i < numGrads; i++)
{
mg.Records[i] = this.ReadMorphGradientRecord(shapeReader);
}
return mg;
}
/// <summary>
/// Initializes a new instance of a SWF parser.
/// </summary>
/// <param name="swfIn">A stream with SWF data to read from.</param>
/// <param name="binaryDump">Only has an effect in debug builds.</param>
/// <param name="abcInterceptor">Only has an effect in debug builds.</param>
/// <param name="dbugConstFilter">Only has an effect in debug builds.</param>
public SWFReader(
Stream swfIn,
SWFReaderOptions options,
StringBuilder binaryDump,
IABCLoadInterceptor abcInterceptor)
{
this.options = options;
this.sdtr = new SWFDataTypeReader(swfIn);
this.characterUnmarshaller = new Dictionary<int, ICharacter>();
this.LateClassResolutions = new Dictionary<string, Timeline>();
this.doAbcCount = 0;
#if DEBUG
this.binaryDump = binaryDump;
this.binaryDumpNest = 0;
this.abcInterceptor = abcInterceptor;
#endif
}
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();
}
/* ISSUE 20: Instead of passing the format and reader around, perhaps they should be
* members? Perhaps? Hmm? */
private FillStyle[] ReadFillStyleArray(SWFDataTypeReader shapeReader, Tag format)
{
int fillCount = shapeReader.ReadUI8();
if (fillCount == 0xFF && (format == Tag.DefineShape3 || format == Tag.DefineShape2))
{
fillCount = shapeReader.ReadUI16();
}
FillStyle[] fillStyles = new FillStyle[fillCount];
for (int i = 0; i < fillCount; i++)
{
fillStyles[i] = this.ReadFillStyle(shapeReader, format);
}
return fillStyles;
}
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 MorphLineStyle ReadMorphLineStyle(SWFDataTypeReader shapeReader)
{
return new MorphLineStyle()
{
StartWidth = shapeReader.ReadUI16(),
EndWidth = shapeReader.ReadUI16(),
StartColour = shapeReader.ReadRGBA(),
EndColour = shapeReader.ReadRGBA()
};
}
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 MorphLineStyle[] ReadMorphLineStyleArray(SWFDataTypeReader shapeReader, Tag format)
{
int lineCount = shapeReader.ReadUI8();
if (lineCount == 0xFF)
{
lineCount = shapeReader.ReadUI16();
}
MorphLineStyle[] lineStyles = new MorphLineStyle[lineCount];
if (format == Tag.DefineMorphShape)
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadMorphLineStyle(shapeReader);
}
}
else /* Else Tag.DefineMorphShape2 */
{
for (int i = 0; i < lineCount; i++)
{
lineStyles[i] = this.ReadMorphLineStyle2(shapeReader);
}
}
return lineStyles;
}
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 LineStyle ReadLineStyle2(SWFDataTypeReader shapeReader, Tag format)
{
int width = shapeReader.ReadUI16();
CapStyle startCap = (CapStyle)shapeReader.ReadUBits(2);
JoinStyle join = (JoinStyle)shapeReader.ReadUBits(2);
bool hasFill = shapeReader.ReadBit();
bool noHScaling = shapeReader.ReadBit();
bool noVScaling = shapeReader.ReadBit();
bool hasPixelHints = shapeReader.ReadBit();
shapeReader.ReadUBits(5); /* Reserved: 0 */
bool noClose = shapeReader.ReadBit();
CapStyle endCap = (CapStyle)shapeReader.ReadUBits(2);
int? miterLimit = null;
if (join == JoinStyle.Miter)
{
miterLimit = shapeReader.ReadUI16();
}
Color? c = null;
FillStyle fs = null;
if (hasFill)
{
fs = this.ReadFillStyle(shapeReader, format);
}
else
{
c = shapeReader.ReadRGBA();
}
return new LineStyle()
{
Width = width,
StartCap = startCap,
EndCap = endCap,
Join = join,
HasFill = hasFill,
NoHScaling = noHScaling,
NoVScaling = noVScaling,
HasPixelHints = hasPixelHints,
Colour = c,
FillStyle = fs,
MiterLimit = miterLimit
};
}
/// <inheritdoc />
public void Dispose()
{
if (this.sdtr != null)
{
this.sdtr.Dispose();
this.sdtr = null;
}
}
private MorphGradientRecord ReadMorphGradientRecord(SWFDataTypeReader shapeReader)
{
MorphGradientRecord mgr = new MorphGradientRecord();
mgr.StartRatio = shapeReader.ReadUI8();
mgr.StartColour = shapeReader.ReadRGBA();
mgr.EndRatio = shapeReader.ReadUI8();
mgr.EndColour = shapeReader.ReadRGBA();
return mgr;
}
