public override void visit(TagHandler h)
{
switch (code)
{
case Flash.Swf.TagValues.stagDefineShape:
h.defineShape(this);
break;
case Flash.Swf.TagValues.stagDefineShape2:
h.defineShape2(this);
break;
case Flash.Swf.TagValues.stagDefineShape3:
h.defineShape3(this);
break;
case Flash.Swf.TagValues.stagDefineShape6:
h.defineShape6(this);
break;
default:
System.Diagnostics.Debug.Assert(false);
break;
}
}
/// <summary> process the whole SWF stream, and close the input streams when finished.</summary>
/// <param name="handler">
/// </param>
/// <throws> IOException </throws>
public void parse(TagHandler handler)
{
this.handler = handler;
try
{
try
{
handler.DecoderDictionary = dict;
header = decodeHeader();
handler.header(header);
decodeTags(handler);
handler.finish();
}
catch (FatalParseException)
{
// errors already reported to TagHandler.
}
finally
{
if (swfIn != null)
swfIn.Close();
}
}
finally
{
if (swdIn != null)
swdIn.Close();
}
}
public override void visit(Flash.Swf.TagHandler h)
{
if (code == Flash.Swf.TagValues.stagDefineBitsJPEG2)
{
h.defineBitsJPEG2(this);
}
else
{
h.defineBits(this);
}
}
//--------------------------------------------------------------------------
//
// Visitor Methods
//
//--------------------------------------------------------------------------
/// <summary> Invokes the defineFont visitor on the given TagHandler.
///
/// </summary>
/// <param name="handler">The SWF TagHandler.
/// </param>
public override void visit(TagHandler handler)
{
if (code == Flash.Swf.TagValues.stagDefineFont)
handler.defineFont(this);
}
public override void visit(TagHandler t)
{
}
public override void visit(TagHandler h)
{
h.doInitAction(this);
}
/// <summary> Subclasses implement this method to callback one of the methods in TagHandler...</summary> /// <param name="h"> /// </param> public abstract void visit(TagHandler h);
/// <summary> Subclasses implement this method to callback one of the methods in TagHandler...</summary> /// <param name="h"> /// </param> public abstract void visit(TagHandler h);
private void decodeTags(TagHandler handler)
{
int type, h, length, currentOffset;
do
{
currentOffset = r.Offset;
type = (h = r.readUI16()) >> 6;
// is this a long tag header (>=63 bytes)?
if (((length = h & 0x3F) == 0x3F))
{
// [ed] the player treats this as a signed field and stops if it is negative.
length = r.readSI32();
if (length < 0)
{
handler.error("negative tag length: " + length + " at offset " + currentOffset);
break;
}
}
int o = r.Offset;
int eat = 0;
if (type != 0)
{
Tag t = decodeTag(type, length);
if (r.Offset - o != length)
{
handler.error("offset mismatch after " + Flash.Swf.TagValues.names[t.code] + ": read " + (r.Offset - o) + ", expected " + length);
if (r.Offset - o < length)
{
eat = length - (r.Offset - o);
}
}
handler.setOffsetAndSize(currentOffset, r.Offset - currentOffset);
handler.any(t);
t.visit(handler);
if (eat > 0)
// try to recover. (flash 8 sometimes writes nonsense, usually in fonts)
{
r.readFully(new byte[eat]);
}
}
}
while (type != 0);
}
public override void visit(TagHandler t)
{
}