bool Player_V3M::loadMusic(const byte *ptr) {
Common::MacResManager resource;
bool found = false;
for (int i = 0; i < ARRAYSIZE(loomFileNames); 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(5, "Player_V3M::loadMusic: Skipping unknown music type %02X%02X", ptr[4], ptr[5]);
resource.close();
return false;
}
uint i;
for (i = 0; i < 5; i++) {
int instrument = READ_BE_UINT16(ptr + 20 + 2 * i);
int offset = READ_BE_UINT16(ptr + 30 + 2 * i);
_channel[i]._looped = false;
_channel[i]._length = READ_BE_UINT16(ptr + offset + 4) * 3;
_channel[i]._data = ptr + offset + 6;
_channel[i]._pos = 0;
_channel[i]._pitchModifier = 0;
_channel[i]._velocity = 0;
_channel[i]._remaining = 0;
_channel[i]._notesLeft = true;
Common::SeekableReadStream *stream = resource.getResource(RES_SND, instrument);
if (_channel[i].loadInstrument(stream)) {
debug(6, "Player_V3M::loadMusic: Channel %d - Loaded Instrument %d (%s)", i, instrument, resource.getResName(RES_SND, instrument).c_str());
} else {
resource.close();
return false;
}
}
resource.close();
return true;
}
bool Player_V5M::loadMusic(const byte *ptr) {
Common::MacResManager resource;
bool found = false;
uint i;
for (i = 0; i < ARRAYSIZE(monkeyIslandFileNames); i++) {
if (resource.open(monkeyIslandFileNames[i])) {
found = true;
break;
}
}
if (!found) {
return false;
}
ptr += 8;
// TODO: Decipher the unknown bytes in the header. For now, skip 'em
ptr += 28;
Common::MacResIDArray idArray = resource.getResIDArray(RES_SND);
// Load the three channels and their instruments
for (i = 0; i < 3; i++) {
assert(READ_BE_UINT32(ptr) == MKTAG('C', 'h', 'a', 'n'));
uint32 len = READ_BE_UINT32(ptr + 4);
uint32 instrument = READ_BE_UINT32(ptr + 8);
_channel[i]._length = len - 20;
_channel[i]._data = ptr + 12;
_channel[i]._looped = (READ_BE_UINT32(ptr + len - 8) == MKTAG('L', 'o', 'o', 'p'));
_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.size(); j++) {
Common::String name = resource.getResName(RES_SND, idArray[j]);
if (instrument == READ_BE_UINT32(name.c_str())) {
debug(6, "Player_V5M::loadMusic: Channel %d: Loading instrument '%s'", i, name.c_str());
Common::SeekableReadStream *stream = resource.getResource(RES_SND, idArray[j]);
if (!_channel[i].loadInstrument(stream)) {
resource.close();
return false;
}
break;
}
}
ptr += 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.
uint32 samples[3];
uint32 maxSamples = 0;
for (i = 0; i < 3; i++) {
samples[i] = 0;
for (uint j = 0; j < _channel[i]._length; j += 4) {
samples[i] += durationToSamples(READ_BE_UINT16(&_channel[i]._data[j]));
}
if (samples[i] > maxSamples) {
maxSamples = samples[i];
}
}
for (i = 0; i < 3; i++) {
_lastNoteSamples[i] = maxSamples - samples[i];
}
return true;
}
