protected override void WritePcm8(aBinaryWriter writer)
{
for (var i = 0; i < mSampleCount; ++i)
{
GotoSample(i);
writer.WriteS8(MixPcm8());
}
}
protected override void WritePcm8(aBinaryWriter writer)
{
mReader.Goto(0);
switch (mFormat)
{
case WaveFormat.Pcm8: {
writer.WriteS8s(mReader.ReadS8s(mSampleCount));
break;
}
case WaveFormat.Pcm16: {
for (var i = 0; i < mSampleCount; ++i)
{
sbyte pcm8;
Waveform.Pcm16toPcm8(mReader.ReadS16(), out pcm8);
writer.WriteS8(pcm8);
}
break;
}
case WaveFormat.Adpcm2: {
var pcm8 = new sbyte[16];
var pcm16 = new short[16];
int last = 0, penult = 0;
for (var i = 0; i < mSampleCount; i += 16)
{
Waveform.Adpcm2toPcm16(mReader.Read8s(5), pcm16, ref last, ref penult);
for (var j = 0; j < 16; ++j)
{
Waveform.Pcm16toPcm8(pcm16[j], out pcm8[j]);
}
writer.WriteS8s(pcm8, System.Math.Min(16, (mSampleCount - i)));
}
break;
}
case WaveFormat.Adpcm4: {
var pcm8 = new sbyte[16];
var pcm16 = new short[16];
int last = 0, penult = 0;
for (var i = 0; i < mSampleCount; i += 16)
{
Waveform.Adpcm4toPcm16(mReader.Read8s(9), pcm16, ref last, ref penult);
for (var j = 0; j < 16; ++j)
{
Waveform.Pcm16toPcm8(pcm16[j], out pcm8[j]);
}
writer.WriteS8s(pcm8, System.Math.Min(16, (mSampleCount - i)));
}
break;
}
}
}
void WriteInfo()
{
mWriter.WriteString("LIST");
mWriter.WriteS32(CalculateInfoSize());
mWriter.WriteString("INFO");
mWriter.WriteString("ifil");
mWriter.WriteS32(4);
mWriter.WriteS16(2);
mWriter.WriteS16(1);
mWriter.WriteString("isng");
mWriter.WriteS32(8);
mWriter.WriteString("EMU8000");
mWriter.WriteS8(0);
mWriter.WriteString("INAM");
mWriter.WriteS32(((mWaveBank.Name.Length + 2) / 2) * 2);
mWriter.WriteString(mWaveBank.Name);
mWriter.WriteS8(0);
mWriter.WritePadding(2, 0);
}
