protected override bool CheckMusicAvailable()
{
var resource = new MacResManager(ServiceLocator.FileStorage.GetDirectoryName(_vm.Game.Path));
for (int i = 0; i < monkeyIslandFileNames.Length; i++)
{
if (resource.Exists(monkeyIslandFileNames[i]))
{
return true;
}
}
// GUI::MessageDialog dialog(_(
// "Could not find the 'Monkey Island' Macintosh executable to read the\n"
// "instruments from. Music will be disabled."), _("OK"));
// dialog.runModal();
return false;
}
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;
}
