void HandleIACT(uint subSize, BinaryReader b)
{
// Debug.WriteLine("SmushPlayer::IACT()");
Debug.Assert(subSize >= 8);
int code = b.ReadUInt16();
int flags = b.ReadUInt16();
int unknown = b.ReadInt16();
int track_flags = b.ReadUInt16();
if ((code != 8) && (flags != 46))
{
_vm.Insane.ProcIACT(_dst, 0, 0, 0, b, 0, 0, code, flags, unknown, track_flags);
return;
}
if (_compressedFileMode)
{
return;
}
Debug.Assert(flags == 46 && unknown == 0);
int track_id = b.ReadUInt16();
int index = b.ReadUInt16();
int nbframes = b.ReadUInt16();
int size = b.ReadInt32();
int bsize = (int)subSize - 18;
if (_vm.Game.GameId != GameId.CurseOfMonkeyIsland)
{
int track = track_id;
if (track_flags == 1)
{
track = track_id + 100;
}
else if (track_flags == 2)
{
track = track_id + 200;
}
else if (track_flags == 3)
{
track = track_id + 300;
}
else if ((track_flags >= 100) && (track_flags <= 163))
{
track = track_id + 400;
}
else if ((track_flags >= 200) && (track_flags <= 263))
{
track = track_id + 500;
}
else if ((track_flags >= 300) && (track_flags <= 363))
{
track = track_id + 600;
}
// else
// {
// Debug.Fail(string.Format("SmushPlayer::handleIACT(): bad track_flags: {0}", track_flags));
// }
// Debug.WriteLine("SmushPlayer::handleIACT(): {0}, {1}, {2}", track, index, track_flags);
var c = _smixer.FindChannel(track);
if (c == null)
{
c = new ImuseChannel(track);
_smixer.AddChannel(c);
}
if (index == 0)
c.SetParameters(nbframes, size, track_flags, unknown, 0);
else
c.CheckParameters(index, nbframes, size, track_flags, unknown);
c.AppendData(b, bsize);
}
else
{
// TODO: Move this code into another SmushChannel subclass?
var src = b.ReadBytes(bsize);
int d_src = 0;
byte value;
while (bsize > 0)
{
if (_IACTpos >= 2)
{
int len = ScummHelper.ToUInt16BigEndian(_IACToutput, 0) + 2;
len -= _IACTpos;
if (len > bsize)
{
Array.Copy(src, d_src, _IACToutput, _IACTpos, bsize);
_IACTpos += bsize;
bsize = 0;
}
else
{
var output_data = new byte[4096];
Array.Copy(src, d_src, _IACToutput, _IACTpos, len);
var dst = 0;
var d_src2 = 0;
d_src2 += 2;
int count = 1024;
byte variable1 = _IACToutput[d_src2++];
byte variable2 = (byte)(variable1 / 16);
variable1 &= 0x0f;
do
{
value = _IACToutput[d_src2++];
if (value == 0x80)
{
output_data[dst++] = _IACToutput[d_src2++];
output_data[dst++] = _IACToutput[d_src2++];
}
else
{
short val = (short)((sbyte)value << variable2);
output_data[dst++] = (byte)(val >> 8);
output_data[dst++] = (byte)val;
}
value = _IACToutput[d_src2++];
if (value == 0x80)
{
output_data[dst++] = _IACToutput[d_src2++];
output_data[dst++] = _IACToutput[d_src2++];
}
else
{
short val = (short)((sbyte)value << variable1);
output_data[dst++] = (byte)(val >> 8);
output_data[dst++] = (byte)val;
}
} while ((--count) != 0);
if (_IACTstream == null)
{
_IACTstream = new QueuingAudioStream(22050, true);
_IACTchannel = _vm.Mixer.PlayStream(SoundType.SFX, _IACTstream);
}
_IACTstream.QueueBuffer(output_data, 0x1000, true, AudioFlags.Stereo | AudioFlags.Is16Bits);
bsize -= len;
d_src += len;
_IACTpos = 0;
}
}
else
{
if (bsize > 1 && _IACTpos == 0)
{
_IACToutput[0] = src[d_src++];
_IACTpos = 1;
bsize--;
}
_IACToutput[_IACTpos] = src[d_src++];
_IACTpos++;
bsize--;
}
}
}
}
public void Clear()
{
TrackId = 0;
pan = 0;
vol = 0;
VolFadeDest = 0;
VolFadeStep = 0;
VolFadeDelay = 0;
VolFadeUsed = false;
// SoundId = 0;
SoundName = null;
Used = false;
ToBeRemoved = false;
SouStreamUsed = false;
SndDataExtComp = false;
SoundPriority = 0;
RegionOffset = 0;
DataOffset = 0;
CurRegion = 0;
CurHookId = 0;
VolGroupId = 0;
SoundType = 0;
FeedSize = 0;
DataMod12Bit = 0;
MixerFlags = AudioFlags.None;
SoundDesc = null;
MixChanHandle = new SoundHandle();
Stream = null;
}