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 void doTheDamnThing(RandomAccessFile fp) throws IOException { byte[] b = new byte[26]; // Load IMPM header fp.read(b, 0, 4); if (b[0] == 'I' && b[1] == 'M' && b[2] == 'P' && b[3] == 'M') { loadDataIT(fp); return; } // Attempt to load XM fp.seek(0); if (Util.readStringNoNul(fp, b, 17).equals("Extended Module: ")) { fp.seek(17 + 20); if (fp.read() == 0x1A) { fp.seek(17); loadDataXM(fp); return; } } // Attempt to load ST3 module fp.seek(0x1C); if (fp.readUnsignedShort() == 0x1A10) { fp.seek(0); loadDataS3M(fp); return; } fp.seek(0); // Assume this is a .mod file if (true) { loadDataMOD(fp); return; } throw new RuntimeException("module format not supported"); }
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 loadDataMOD(RandomAccessFile fp) throws IOException { byte[] b = new byte[23]; this.name = Util.readStringNoNul(fp, b, 20); System.out.printf("name: \"%s\"\n", name); // check to see if we're a 15-sampler fp.seek(20 + 15 * 30 + 1); boolean poss_15smp = (fp.read() == (byte) 0x78); // get M.K. tag fp.seek(20 + 31 * 30 + 1 + 1 + 128); String mktag = Util.readStringNoNul(fp, b, 4); // set us up for reading interesting things int smpnum = 31; int chnnum = 4; boolean flt8 = false; // check mktag for gibberish for (int i = 0; i < 4; i++) { // System.out.printf("%d\n",b[i]); if (b[i] < 0x20 || b[i] > 0x7E) { if (!poss_15smp) throw new RuntimeException("not a 15-sample or 31-sample MOD"); System.out.println("15-sample module!"); smpnum = 15; mktag = "****"; break; } } if (mktag.equals("FLT8")) { flt8 = true; } else if (mktag.substring(1, 4).equals("CHN")) { // check values int cct = b[0] - '0'; if (cct >= 1 && cct <= 9) chnnum = cct; } else if (mktag.substring(2, 4).equals("CH") || mktag.substring(2, 4).equals("CN")) { // check values int cct1 = b[0] - '0'; int cct2 = b[1] - '0'; if (cct1 >= 0 && cct1 <= 9) if (cct2 >= 0 && cct2 <= 9) { int cct = cct1 * 10 + cct2; if (cct >= 1) chnnum = cct; } } // I forget what else is used. if (chnnum > 64) throw new RuntimeException( String.format("%d-channel modules not supported (max 64)", chnnum)); if (flt8) throw new RuntimeException("TODO: FLT8 loader"); // continue fp.seek(20); // load sample headers for (int i = 0; i < smpnum; i++) map_smp.put((Integer) (i + 1), new SessionSample(fp, SessionSample.FORMAT_MOD)); // load order count int ordnum = fp.read(); // ignore this next byte (well, at least for now) fp.read(); // load orderlist + calculate patnum int patnum = 0; for (int i = 0; i < 128; i++) { int v = orderlist[i] = fp.read(); if (v > patnum) patnum = v; } patnum++; // fix up orderlist for (int i = ordnum; i < 256; i++) orderlist[i] = 255; // skip M.K. tag if (smpnum == 31) fp.readInt(); // load patterns for (int i = 0; i < patnum; i++) map_pat.put((Integer) i, new SessionPattern(this, fp, SessionPattern.FORMAT_MOD, chnnum)); // load sample data for (int i = 0; i < smpnum; i++) map_smp.get((Integer) (i + 1)).loadSampleDataMOD(fp); // set everything else! this.flags = FLAG_COMPATGXX | FLAG_OLDEFFECTS | FLAG_STEREO | FLAG_VOL0MIX; this.sep = 64; }
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 }