/// <summary>
/// Takes a SWF object and turns it into a .swf binary file. It might seem nicer to
/// write it to a stream, but the stream has a file length at the start which we only
/// know once we've written it all out to a byte array anyway. Returning it as a
/// chunk of data is simply more honest; an output stream would promise streaminess behind
/// the scenes that we cannot deliver.
/// </summary>
/// <returns>The .swf data is returned as a byte array.</returns>
public byte[] ToByteArray()
{
/* We start writing things mid-way through the header, at the point
* where compression comes into effect. Once we've created and perhaps
* compressed the data, we can write the first part of the header and
* concatenate the rest. */
writtenJPEGTable = null;
/* The file contains tags, which can contain tags, each of which is prefixed with a length.
* To track all this, we use a stack of writers, each with its own buffer. The first on the
* stack is the buffer that will contain the file itself. */
this.writers = new Stack <WriteBuffer>();
this.swfOut = new WriteBuffer(Tag.None, "swf");
this.writers.Push(this.swfOut);
this.swfOut.WriteRect(new Rect(0, this.swf.FrameWidth, 0, this.swf.FrameHeight));
this.swfOut.WriteFIXED8(this.swf.Fps);
this.swfOut.WriteUI16(this.swf.FrameCount);
this.WriteTags();
/* Ok, we basically have a SWF now. All we need to do is compress it and
* stick a header on at the front... */
byte[] body = this.swfOut.Data;
uint fileLen = (uint)(body.Length + 8); /* Add the 8 bytes of header we haven't done yet. */
if (this.options.Compressed)
{
MemoryStream zbytes = new MemoryStream();
DeflaterOutputStream zos = new DeflaterOutputStream(zbytes);
zos.Write(body, 0, body.Length);
zos.Close();
body = zbytes.ToArray();
}
MemoryStream final = new MemoryStream();
SWFDataTypeWriter finalWriter = new SWFDataTypeWriter(final);
finalWriter.WriteUI24(this.options.Compressed ? SIG_COMPRESSED : SIG_UNCOMPRESSED);
/* ISSUE 27: Hard-coded SWF version 10. Technically this should be an option but
* for now we don't want the headache of version-specific code. */
finalWriter.WriteUI8(SWF_VERSION);
finalWriter.WriteUI32(fileLen);
finalWriter.Write(body, 0, body.Length);
return(final.ToArray());
}
/// <summary>
/// Takes a SWF object and turns it into a .swf binary file. It might seem nicer to
/// write it to a stream, but the stream has a file length at the start which we only
/// know once we've written it all out to a byte array anyway. Returning it as a
/// chunk of data is simply more honest; an output stream would promise streaminess behind
/// the scenes that we cannot deliver.
/// </summary>
/// <returns>The .swf data is returned as a byte array.</returns>
public byte[] ToByteArray()
{
/* We start writing things mid-way through the header, at the point
* where compression comes into effect. Once we've created and perhaps
* compressed the data, we can write the first part of the header and
* concatenate the rest. */
writtenJPEGTable = null;
/* The file contains tags, which can contain tags, each of which is prefixed with a length.
* To track all this, we use a stack of writers, each with its own buffer. The first on the
* stack is the buffer that will contain the file itself. */
this.writers = new Stack<WriteBuffer>();
this.swfOut = new WriteBuffer(Tag.None, "swf");
this.writers.Push(this.swfOut);
this.swfOut.WriteRect(new Rect(0, this.swf.FrameWidth, 0, this.swf.FrameHeight));
this.swfOut.WriteFIXED8(this.swf.Fps);
this.swfOut.WriteUI16(this.swf.FrameCount);
this.WriteTags();
/* Ok, we basically have a SWF now. All we need to do is compress it and
* stick a header on at the front... */
byte[] body = this.swfOut.Data;
uint fileLen = (uint)(body.Length + 8); /* Add the 8 bytes of header we haven't done yet. */
if (this.options.Compressed)
{
MemoryStream zbytes = new MemoryStream();
DeflaterOutputStream zos = new DeflaterOutputStream(zbytes);
zos.Write(body, 0, body.Length);
zos.Close();
body = zbytes.ToArray();
}
MemoryStream final = new MemoryStream();
SWFDataTypeWriter finalWriter = new SWFDataTypeWriter(final);
finalWriter.WriteUI24(this.options.Compressed ? SIG_COMPRESSED : SIG_UNCOMPRESSED);
/* ISSUE 27: Hard-coded SWF version 10. Technically this should be an option but
* for now we don't want the headache of version-specific code. */
finalWriter.WriteUI8(SWF_VERSION);
finalWriter.WriteUI32(fileLen);
finalWriter.Write(body, 0, body.Length);
return final.ToArray();
}
