public final short readShort() throws IOException {
short s = mRaf.readShort();
if (mIsLittleEndian) {
return (short) (((s & 0x00ff) << 8) | ((s & 0xff00) >>> 8));
}
return s;
}
/** {@inheritDoc} */
public short readShort() throws IOException {
fileSize -= 2;
if (fileSize < 0) {
throw new EOFException();
}
return dataInput.readShort();
}
private void loadDataXM(RandomAccessFile fp) throws IOException {
byte[] b = new byte[20];
// WHY THE HELL AM I DOING THIS
name = Util.readStringNoNul(fp, b, 20);
System.out.printf("name: \"%s\"\n", name);
fp.read(); // skip 0x1A byte
// THIS CAN'T BE HAPPENING
fp.read(b, 0, 20); // skip tracker name
// OH HELL NO
int xmver = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
System.out.printf("XM version: %04X\n", xmver);
// WHAT IS THIS CRAP
InhibitedFileBlock ifb = new InhibitedFileBlock(fp, Integer.reverseBytes(fp.readInt()) - 4);
// HELP ME PLEASE
int ordnum = 0xFFFF & (int) Short.reverseBytes(ifb.readShort());
int respos =
0xFFFF & (int) Short.reverseBytes(ifb.readShort()); // can't be bothered right now --GM
int chnnum =
0xFFFF & (int) Short.reverseBytes(ifb.readShort()); // yeah sure, allow out of range values
if (chnnum > 64)
throw new RuntimeException(
String.format("%d-channel modules not supported (max 64)", chnnum));
int patnum = 0xFFFF & (int) Short.reverseBytes(ifb.readShort());
int insnum = 0xFFFF & (int) Short.reverseBytes(ifb.readShort());
int xmflags = 0xFFFF & (int) Short.reverseBytes(ifb.readShort());
int xmspeed = 0xFFFF & (int) Short.reverseBytes(ifb.readShort());
int xmtempo = 0xFFFF & (int) Short.reverseBytes(ifb.readShort());
// OH PLEASE, STOP IT
if (ordnum > 255) ordnum = 255;
if (xmtempo > 255) xmtempo = 255;
if (xmspeed > 255) xmspeed = 255;
this.bpm = xmtempo;
this.spd = xmspeed;
this.flags = FLAG_COMPATGXX | FLAG_OLDEFFECTS | FLAG_INSMODE | FLAG_STEREO | FLAG_VOL0MIX;
if ((xmflags & 0x01) != 0) this.flags |= FLAG_LINEAR;
// NONONONONONO
System.out.printf("chn=%d ordnum=%d tempo=%d speed=%s\n", chnnum, ordnum, xmtempo, xmspeed);
for (int i = 0; i < 256; i++) orderlist[i] = ifb.read();
for (int i = ordnum; i < 256; i++) orderlist[i] = 255;
ifb.done();
// SAVE ME PLEEEEEAAASSSSEEEE
for (int i = 0; i < patnum; i++)
map_pat.put((Integer) i, new SessionPattern(this, fp, SessionPattern.FORMAT_XM, chnnum));
for (int i = 0; i < insnum; i++)
map_ins.put((Integer) (i + 1), new SessionInstrument(fp, SessionInstrument.FORMAT_XM, this));
}
private static void alterLastIFDOffset(RandomAccessFile rFile, int fileLen) throws IOException {
rFile.seek(0);
rFile.skipBytes(4);
int offsetIFD = rFile.readInt();
while (true) {
rFile.seek(offsetIFD);
int dirs = rFile.readShort();
rFile.skipBytes(dirs * 12);
offsetIFD = rFile.readInt();
if (offsetIFD == 0) {
int pointer = (int) rFile.getFilePointer();
rFile.seek(pointer - 4);
rFile.writeInt(fileLen);
break;
}
}
}
/**
* Get the next rtp packet recorded in the rtpdump file.
*
* @param loopFile if true, when the end of the rtpdump file is reached, this
* <tt>RtpdumpFileReader</tt> will go back at the beginning of the file and get the first
* packet.
* @return a <tt>RawPacket</tt> containing all the information and data of the next rtp packet
* recorded in the rtpdump file
* @throws IOException if <tt>loopFile</tt> was false and the end of the file is reached.
*/
public RawPacket getNextPacket(boolean loopFile) throws IOException {
if (loopFile && (stream.getFilePointer() >= stream.length())) {
resetFile();
}
byte[] rtpdumpPacket;
int sizeInBytes;
stream.readShort(); // read away an useless short (2 bytes)
sizeInBytes = stream.readUnsignedShort();
rtpdumpPacket = new byte[sizeInBytes];
stream.readInt(); // read away the rtpdump timestamp
stream.read(rtpdumpPacket);
return new RawPacket(rtpdumpPacket, 0, rtpdumpPacket.length);
}
public RecordRange seek(String pattern, int size) {
RandomAccessFile currentFile = file[size - 1];
long pos, mid, head, tail;
short strLen;
byte buf[] = new byte[strSize];
try {
head = 0;
tail = currentFile.length() / recLen - 1;
while (head <= tail) {
mid = (head + tail) / 2;
pos = mid * recLen;
currentFile.seek(pos);
strLen = currentFile.readShort();
currentFile.read(buf, 0, strLen);
String str = new String(buf, 0, strLen);
int cmp = pattern.compareTo(str);
if (cmp < 0) tail = mid - 1;
else if (cmp > 0) head = mid + 1;
else {
currentFile.seek(pos + lenSize + strSize);
int spageID = currentFile.readInt();
int soffset = currentFile.readInt();
int epageID = currentFile.readInt();
int eoffset = currentFile.readInt();
return new RecordRange(new RID(spageID, soffset), new RID(epageID, eoffset));
}
}
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
private void loadDataIT(RandomAccessFile fp) throws IOException {
byte[] b = new byte[26];
this.name = Util.readString(fp, b, 26);
System.out.printf("name: \"%s\"\n", name);
this.philigt = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int ordnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int insnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int smpnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int patnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
this.cwtv = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
this.cmwt = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
this.flags = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
this.special = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
this.gv = fp.read();
this.mv = fp.read();
this.spd = fp.read();
this.bpm = fp.read();
this.pwd = fp.read();
this.sep = fp.read();
int msglgth = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int msgoffs = Integer.reverseBytes(fp.readInt());
this.timestamp = Integer.reverseBytes(fp.readInt());
fp.read(chnpan, 0, 64);
fp.read(chnvol, 0, 64);
System.out.printf("ver: %04X / compat: %04X\n", cwtv, cmwt);
// Load orderlist
for (int i = 0; i < ordnum; i++) orderlist[i] = fp.readUnsignedByte();
for (int i = ordnum; i < 256; i++) orderlist[i] = 255;
// Load pointers
int[] insptrs = new int[insnum];
int[] smpptrs = new int[smpnum];
int[] patptrs = new int[patnum];
for (int i = 0; i < insnum; i++) insptrs[i] = Integer.reverseBytes(fp.readInt());
for (int i = 0; i < smpnum; i++) smpptrs[i] = Integer.reverseBytes(fp.readInt());
for (int i = 0; i < patnum; i++) patptrs[i] = Integer.reverseBytes(fp.readInt());
// TODO: read MIDI + timestamp bollocks
// TODO: look up and/or reverse engineer said bollocks
// Load data
for (int i = 0; i < insnum; i++) {
if (insptrs[i] != 0) {
fp.seek(insptrs[i]);
map_ins.put(
(Integer) (i + 1),
new SessionInstrument(
fp,
cmwt < 0x200 ? SessionInstrument.FORMAT_IT100 : SessionInstrument.FORMAT_IT200));
}
}
for (int i = 0; i < smpnum; i++) {
if (smpptrs[i] != 0) {
fp.seek(smpptrs[i]);
map_smp.put((Integer) (i + 1), new SessionSample(fp, SessionSample.FORMAT_IT));
}
}
for (int i = 0; i < patnum; i++) {
if (patptrs[i] != 0) {
fp.seek(patptrs[i]);
map_pat.put((Integer) i, new SessionPattern(this, fp, SessionPattern.FORMAT_IT));
}
}
}
private void loadDataS3M(RandomAccessFile fp) throws IOException {
byte[] b = new byte[28];
this.name = Util.readString(fp, b, 28);
System.out.printf("name: \"%s\"\n", name);
fp.readInt(); // first two bytes we've seen, second two are unused
int ordnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int smpnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int patnum = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int s3flags = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int s3cwtv = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
int ffi = 0xFFFF & (int) Short.reverseBytes(fp.readShort());
fp.readInt(); // should have "SCRM" but really doesn't matter
this.flags = FLAG_OLDEFFECTS | FLAG_VOL0MIX;
this.gv = fp.read() * 2;
this.spd = fp.read();
this.bpm = fp.read();
this.mv = fp.read();
fp.read(); // NO WE DON'T HAVE A GUS
int dfpflag = fp.read();
// weird S3M crap
// note: assuming default of 6/125
// it actually uses the previously-used speed/tempo
if (this.spd == 0 || this.spd == 255) this.spd = 6;
if (this.bpm < 33) this.bpm = 125;
if ((this.mv & 0x80) != 0) {
this.mv &= ~0x80;
this.flags |= FLAG_STEREO;
// XXX: this might need to be done internally in the player
// if it turns out that IT does the same damn thing --GM
this.mv = (this.mv * 11 + 4) >> 3;
}
// skip all that bollocks
fp.seek(0x40);
// load channel mappings
// yes, we WILL want these!
// though i don't think anyone's done anything completely bonkers
// except Storlek and myself --GM
int[] st3chnmap = new int[32];
for (int i = 32; i < 64; i++) {
chnvol[i] = (byte) 0xC0;
chnpan[i] = 0x20;
}
for (int i = 0; i < 32; i++) {
chnpan[i] = 0;
int v = fp.read();
st3chnmap[i] = v & 0x7F;
// don't enable FM channels!
chnvol[i] = ((v & 0x80) != 0 && (v & 0x7F) < 16) ? 0x40 : (byte) 0xC0;
}
// orderlist!
// DON'T EVEN NEED TO FILTER IT YES :D
for (int i = 0; i < ordnum; i++) orderlist[i] = fp.read();
for (int i = ordnum; i < 256; i++) orderlist[i] = 255;
// load pointers
int[] smpptrs = new int[smpnum];
int[] patptrs = new int[patnum];
for (int i = 0; i < smpnum; i++)
smpptrs[i] = (0xFFFF & (int) Short.reverseBytes(fp.readShort())) * 16;
for (int i = 0; i < patnum; i++)
patptrs[i] = (0xFFFF & (int) Short.reverseBytes(fp.readShort())) * 16;
// load default panning if necessary
for (int i = 0; i < 32; i++) {
int v = (dfpflag == 252) ? fp.read() : 0x10;
int pan =
(v & 0x10) != 0 ? (flags & FLAG_STEREO) != 0 ? (v & 0x08) != 0 ? 0xC : 0x3 : 0x7 : v & 15;
// TODO: scale this crap correctly
chnpan[i] = (byte) ((pan + 2) << 2);
}
// load data
for (int i = 0; i < smpnum; i++)
if (smpptrs[i] != 0) {
fp.seek(smpptrs[i]);
map_smp.put((Integer) (i + 1), new SessionSample(fp, SessionSample.FORMAT_S3M, ffi));
}
for (int i = 0; i < patnum; i++)
if (patptrs[i] != 0) {
fp.seek(patptrs[i]);
map_pat.put(
(Integer) i, new SessionPattern(this, fp, SessionPattern.FORMAT_S3M, st3chnmap));
}
// XXX: any other crap this needs? --GM
}
/** This reads a binary short from the file. */
public short readBinaryShort(int col, int row) throws IOException {
raf.seek(row * nBytesPerRow + columnStartAt[col]);
return raf.readShort();
}
/** Read and set the program counter */
public static void loader() throws IOException {
file.seek(0);
short code_offset = file.readShort();
cpu.R[15] = code_offset;
}
/* @see java.io.DataInput.readShort() */
public short readShort() throws IOException {
return raf.readShort();
}