/*
* Reads a PushEntry instance from a bit stream.
*/
StackValue(InputBitStream stream) throws IOException {
type = stream.readUI8();
switch (type) {
case TYPE_STRING:
string = stream.readString();
break;
case TYPE_FLOAT:
floatValue = stream.readFloat();
break;
case TYPE_REGISTER:
registerNumber = stream.readUI8();
break;
case TYPE_BOOLEAN:
booleanValue = (stream.readUI8() != 0);
break;
case TYPE_DOUBLE:
doubleValue = stream.readDouble();
break;
case TYPE_INTEGER:
integerValue = stream.readUI32();
break;
case TYPE_CONSTANT_8:
constant8 = stream.readUI8();
break;
case TYPE_CONSTANT_16:
constant16 = stream.readUI16();
break;
}
}
/*
* Reads a Push action from a bit stream.
*/
Push(InputBitStream stream) throws IOException {
code = ActionConstants.PUSH;
while (stream.available() > 0) {
StackValue value = new StackValue(stream);
values.add(value);
}
}
/**
* Reads a Matrix instance from a bit stream.
*
* @param stream source bit stream
* @throws IOException if an I/O error has occured
*/
public Matrix(InputBitStream stream) throws IOException {
hasScale = stream.readBooleanBit();
if (hasScale) {
int nScaleBits = (int) stream.readUnsignedBits(5);
scaleX = stream.readFPBits(nScaleBits);
scaleY = stream.readFPBits(nScaleBits);
}
hasRotateSkew = stream.readBooleanBit();
if (hasRotateSkew) {
int nRotateBits = (int) stream.readUnsignedBits(5);
rotateSkew0 = stream.readFPBits(nRotateBits);
rotateSkew1 = stream.readFPBits(nRotateBits);
}
int nTranslateBits = (int) stream.readUnsignedBits(5);
translateX = (int) stream.readSignedBits(nTranslateBits);
translateY = (int) stream.readSignedBits(nTranslateBits);
stream.align();
}
/**
* Reads a ButtonCondAction instance from a bit stream.
*
* @param stream the input bit stream
* @throws IOException if an I/O error has occured
*/
public ButtonCondAction(InputBitStream stream) throws IOException {
idleToOverDown = stream.readBooleanBit();
outDownToIdle = stream.readBooleanBit();
outDownToOverDown = stream.readBooleanBit();
overDownToOutDown = stream.readBooleanBit();
overDownToOverUp = stream.readBooleanBit();
overUpToOverDown = stream.readBooleanBit();
overUpToIdle = stream.readBooleanBit();
idleToOverUp = stream.readBooleanBit();
keyPress = (byte) stream.readUnsignedBits(7);
overDownToIdle = stream.readBooleanBit();
// actions = new ActionBlock(stream);
actions = ActionBlock.getInstance();
actions.read(stream);
}
void setData(byte[] data) throws IOException {
InputBitStream inStream = new InputBitStream(data);
characterId = inStream.readUI16();
jpegData = new byte[data.length - 2];
System.arraycopy(data, 2, jpegData, 0, jpegData.length);
}
/*
* Reads a GoToLabel action from a bit stream.
*/
GoToLabel(InputBitStream stream) throws IOException {
super(ActionType.GO_TO_LABEL);
frameLabel = stream.readString();
}
/**
* Reads the SWF content from the stream passed to the constructor, and invokes the methods of the
* registered listeners. Finally, the stream is closed.
*
* <p>Returns the SWF document created during parsing.
*
* <p>Read errors while processing a tag will cause an exception to be thrown, this behaviour can
* changed to instead create a MalformedTag (and thus allowing the code to continue albeit with
* corrupt data) by using {@link SWFListener}. See {@link
* SWFListener#processTagReadError(TagHeader, byte[], Exception)}.
*
* @see SWFListener
* @return the parsed <code>SWFDocument</code> instance
* @throws IOException if an error occured while reading
*/
public SWFDocument read() throws IOException {
preProcess();
SWFHeader header;
try {
header = new SWFHeader(bitStream);
} catch (Exception e) {
// invoke error processing, without header we cannot do anything...
processHeaderReadError(e);
IOException ioe = new IOException("Error while reading SWF header");
ioe.initCause(e);
throw ioe;
}
processHeader(header);
do {
// we check this because of an OpenOffice export bug
// (END tag written as a UI8 (00)instead of an UI16 (00 00))
if ((header.getFileLength() - bitStream.getOffset()) < 2) {
break;
}
TagHeader tagHeader = null;
try {
tagHeader = TagReader.readTagHeader(bitStream);
} catch (Exception e) {
// cannot continue without tag header
processTagHeaderReadError(e);
IOException ioe = new IOException("Error while reading Tag header");
ioe.initCause(e);
throw ioe;
}
processTagHeader(tagHeader);
Tag tag = null;
byte[] tagData = null;
try {
tagData = TagReader.readTagData(bitStream, tagHeader);
tag = TagReader.readTag(tagHeader, tagData, header.getVersion(), japanese);
if (TagType.END.equals(tag.tagType())) {
break;
}
} catch (Exception e) {
// invoke error processing
if (processTagReadError(tagHeader, tagData, e)) {
TagType tt = null;
try {
tt = TagType.lookup(tagHeader.getCode());
} catch (InvalidCodeException ive) {
}
IOException ioe =
new IOException(
"Error while reading Tag ("
+ (tt != null ? tt.getNiceName() : "UNKOWN")
+ ", code:"
+ tagHeader.getCode()
+ ", length:"
+ tagHeader.getLength()
+ ")");
ioe.initCause(e);
throw ioe;
}
tag = new MalformedTag(tagHeader, tagData, e);
}
processTag(tag, bitStream.getOffset());
} while (true);
postProcess();
try {
bitStream.close();
} catch (Exception e) {
// empty on purpose - don't need to propagate errors which occur while closing
}
return document;
}
void setData(byte[] data) throws IOException {
InputBitStream inStream = new InputBitStream(data);
inStream.readUnsignedBits(4); // 4 reserved bits
playbackRate = (byte) inStream.readUnsignedBits(2);
isPlayback16BitSample = inStream.readBooleanBit();
isPlaybackStereo = inStream.readBooleanBit();
streamFormat = (byte) inStream.readUnsignedBits(4);
streamRate = (byte) inStream.readUnsignedBits(2);
isStream16BitSample = inStream.readBooleanBit();
isStreamStereo = inStream.readBooleanBit();
streamSampleCount = inStream.readUI16();
if ((streamFormat == FORMAT_MP3) && (data.length > 4)) {
latencySeek = inStream.readSI16();
}
}
Jump(InputBitStream stream) throws IOException {
code = ActionConstants.JUMP;
branchOffset = stream.readSI16();
}