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(); }