protected override bool LoadMusic(byte[] ptr)
{
var offset = 0;
var resource = new MacResManager(ServiceLocator.FileStorage.GetDirectoryName(_vm.Game.Path));
bool found = false;
uint i;
for (i = 0; i < monkeyIslandFileNames.Length; i++)
{
if (resource.Open(monkeyIslandFileNames[i]))
{
found = true;
break;
}
}
if (!found)
{
return(false);
}
offset += 8;
// TODO: Decipher the unknown bytes in the header. For now, skip 'em
offset += 28;
var idArray = resource.GetResIDArray(RES_SND);
// Load the three channels and their instruments
for (i = 0; i < 3; i++)
{
Debug.Assert(ptr.ToUInt32BigEndian(offset) == System.Text.Encoding.UTF8.GetBytes("Chan").ToUInt32BigEndian());
var len = ptr.ToUInt32BigEndian(offset + 4);
var instrument = ptr.ToUInt32BigEndian(offset + 8);
_channel[i]._length = len - 20;
_channel[i]._data = ptr;
_channel[i]._dataOffset = offset + 12;
_channel[i]._looped = (ptr.ToUInt32BigEndian((int)(offset + len - 8)) == System.Text.Encoding.UTF8.GetBytes("Loop").ToUInt32BigEndian());
_channel[i]._pos = 0;
_channel[i]._pitchModifier = 0;
_channel[i]._velocity = 0;
_channel[i]._remaining = 0;
_channel[i]._notesLeft = true;
for (uint j = 0; j < idArray.Length; j++)
{
var name = resource.GetResName(RES_SND, idArray[j]);
if (instrument == System.Text.Encoding.UTF8.GetBytes(name).ToUInt32BigEndian())
{
Debug.WriteLine("Player_V5M::loadMusic: Channel {0}: Loading instrument '{1}'", i, name);
var stream = resource.GetResource(RES_SND, idArray[j]);
if (!_channel[i].LoadInstrument(stream))
{
resource.Close();
return(false);
}
break;
}
}
offset += (int)len;
}
resource.Close();
// The last note of each channel is just zeroes. We will adjust this
// note so that all the channels end at the same time.
uint[] samples = new uint[3];
uint maxSamples = 0;
for (i = 0; i < 3; i++)
{
samples[i] = 0;
for (uint j = 0; j < _channel[i]._length; j += 4)
{
samples[i] += DurationToSamples(_channel[i]._data.ToUInt16BigEndian((int)(_channel[i]._dataOffset + j)));
}
if (samples[i] > maxSamples)
{
maxSamples = samples[i];
}
}
for (i = 0; i < 3; i++)
{
_lastNoteSamples[i] = maxSamples - samples[i];
}
return(true);
}
protected override bool LoadMusic(byte[] ptr)
{
var resource = new MacResManager(ServiceLocator.FileStorage.GetDirectoryName(_vm.Game.Path));
bool found = false;
for (int i = 0; i < loomFileNames.Length; i++)
{
if (resource.Open(loomFileNames[i]))
{
found = true;
break;
}
}
if (!found)
{
return(false);
}
if (ptr[4] != 's' || ptr[5] != 'o')
{
// Like the original we ignore all sound resources which do not have
// a 'so' tag in them.
// See bug #3602239 ("Mac Loom crashes using opening spell on
// gravestone") for a case where this is required. Loom Mac tries to
// play resource 11 here. This resource is no Mac sound resource
// though, it is a PC Speaker resource. A test with the original
// interpreter also has shown that no sound is played while the
// screen is shaking.
Debug.WriteLine("Player_V3M::loadMusic: Skipping unknown music type {0:X2}{1:X2}", ptr[4], ptr[5]);
resource.Close();
return(false);
}
for (var i = 0; i < 5; i++)
{
var instrument = ptr.ToUInt16BigEndian(20 + 2 * i);
int offset = ptr.ToUInt16BigEndian(30 + 2 * i);
_channel[i]._looped = false;
_channel[i]._length = (uint)(ptr.ToUInt16BigEndian(offset + 4) * 3);
_channel[i]._data = ptr;
_channel[i]._dataOffset = offset + 6;
_channel[i]._pos = 0;
_channel[i]._pitchModifier = 0;
_channel[i]._velocity = 0;
_channel[i]._remaining = 0;
_channel[i]._notesLeft = true;
var stream = resource.GetResource(RES_SND, instrument);
if (_channel[i].LoadInstrument(stream))
{
Debug.WriteLine("Player_V3M::loadMusic: Channel {0} - Loaded Instrument {1} ({2})", i, instrument, resource.GetResName(RES_SND, instrument));
}
else
{
resource.Close();
return(false);
}
}
resource.Close();
return(true);
}