private void loadSampleData(BufferedInputStream in, Sample sample) throws IOException {
int sampleLength = sample.getLength();
int loopEnd = sample.getLoopEnd();
int loopStart = sample.getLoopStart();
short[] sampleData;
if (sample.getQuality() == 16) {
sampleLength >>= 1;
loopEnd >>= 1;
loopStart >>= 1;
byte[] temp = read(in, 2 * sampleLength);
sampleData = new short[sampleLength + 4];
int tmpPos = 0;
int samp = 0;
for (int i = 0; i < sampleLength; i++, tmpPos += 2) {
samp += make16Bit(temp, tmpPos);
sampleData[i] = (short) (samp);
}
} else {
sampleData = new short[sampleLength + 4];
byte[] temp = read(in, sampleLength);
int samp = 0;
for (int i = 0; i < sampleLength; i++) {
samp += temp[i] & 0xff;
sampleData[i] = (short) (samp << 8);
}
}
if (sampleLength > 0) {
int pos2 = 0;
int loopType = sample.getLoopType();
if ((loopType & Sample.PINGPONG_LOOP) == 0) {
if ((loopType & Sample.FORWARD_LOOP) != 0) pos2 = loopStart;
for (int i = 0; i < 3; i++) sampleData[sampleLength + 1 + i] = sampleData[pos2 + i];
} else if ((loopType & Sample.PINGPONG_LOOP) != 0) {
pos2 = loopStart + loopEnd;
for (int i = 0; i < 3; i++) sampleData[sampleLength + 1 + i] = sampleData[pos2 - 1 - i];
}
System.arraycopy(sampleData, 0, sampleData, 1, sampleLength);
if ((loopType & Sample.FORWARD_LOOP) != 0) sampleData[0] = sampleData[loopStart + loopEnd];
else if ((loopType & Sample.PINGPONG_LOOP) != 0) sampleData[0] = sampleData[loopStart + 2];
}
loopStart <<= 10;
loopEnd <<= 10;
sample.setLoopStart(loopStart);
sample.setLoopEnd(loopEnd);
sample.setLength(sampleLength);
sample.setData(sampleData);
}
private void loadSample(BufferedInputStream in, Sample sample) throws IOException {
// Sample length
int sampleLength = make32Bit(read(in, 4));
// Sample loop start
int loopStart = make32Bit(read(in, 4));
// Sample loop length
int loopEnd = make32Bit(read(in, 4));
if (loopStart + loopEnd > sampleLength) loopEnd = (sampleLength) - loopStart;
// Volume
sample.setVolume(in.read());
// Finetune (signend byte -128...+127)
sample.setFineTune((byte) in.read());
// Type: Bit 0-1: 0 = No loop,
// 1 = Forward loop,
// 2 = Ping-pong loop;
// 4: 16-bit sampledata
int loopType = in.read();
int sampleQuality = ((int) loopType & 0x10) != 0 ? 16 : 8;
if ((loopType & 0x3) == 0 || loopEnd == 0) {
// no looping
loopStart = 0;
loopEnd = sampleLength;
loopType &= 0x10;
}
// Panning (0-255)
sample.setPanning(in.read() & 0xff);
// Relative note number (signed byte)
sample.setRelativeNote((byte) in.read());
// Reserved
in.read();
// Sample name
read(in, 22);
sample.setLength(sampleLength);
sample.setLoopType(loopType);
sample.setQuality(sampleQuality);
sample.setLoopStart(loopStart);
sample.setLoopEnd(loopEnd);
}
