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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/debug.h"
#include "common/textconsole.h"
#include "common/util.h"
#include "scumm/imuse/imuse_internal.h"
#include "scumm/saveload.h"
#include "scumm/scumm.h"
namespace Scumm {
////////////////////////////////////////
//
// IMuse Part implementation
//
////////////////////////////////////////
Part::Part() {
_slot = 0;
_next = 0;
_prev = 0;
_mc = 0;
_player = 0;
_pitchbend = 0;
_pitchbend_factor = 0;
_transpose = 0;
_transpose_eff = 0;
_vol = 0;
_vol_eff = 0;
_detune = 0;
_detune_eff = 0;
_pan = 0;
_pan_eff = 0;
_on = false;
_modwheel = 0;
_pedal = false;
_pri = 0;
_pri_eff = 0;
_chan = 0;
_effect_level = 0;
_chorus = 0;
_percussion = 0;
_bank = 0;
_unassigned_instrument = false;
}
void Part::saveLoadWithSerializer(Serializer *ser) {
const SaveLoadEntry partEntries[] = {
MKLINE(Part, _pitchbend, sleInt16, VER(8)),
MKLINE(Part, _pitchbend_factor, sleUint8, VER(8)),
MKLINE(Part, _transpose, sleInt8, VER(8)),
MKLINE(Part, _vol, sleUint8, VER(8)),
MKLINE(Part, _detune, sleInt8, VER(8)),
MKLINE(Part, _pan, sleInt8, VER(8)),
MKLINE(Part, _on, sleUint8, VER(8)),
MKLINE(Part, _modwheel, sleUint8, VER(8)),
MKLINE(Part, _pedal, sleUint8, VER(8)),
MK_OBSOLETE(Part, _program, sleUint8, VER(8), VER(16)),
MKLINE(Part, _pri, sleUint8, VER(8)),
MKLINE(Part, _chan, sleUint8, VER(8)),
MKLINE(Part, _effect_level, sleUint8, VER(8)),
MKLINE(Part, _chorus, sleUint8, VER(8)),
MKLINE(Part, _percussion, sleUint8, VER(8)),
MKLINE(Part, _bank, sleUint8, VER(8)),
MKEND()
};
int num;
if (ser->isSaving()) {
num = (_next ? (_next - _se->_parts + 1) : 0);
ser->saveUint16(num);
num = (_prev ? (_prev - _se->_parts + 1) : 0);
ser->saveUint16(num);
num = (_player ? (_player - _se->_players + 1) : 0);
ser->saveUint16(num);
} else {
num = ser->loadUint16();
_next = (num ? &_se->_parts[num - 1] : 0);
num = ser->loadUint16();
_prev = (num ? &_se->_parts[num - 1] : 0);
num = ser->loadUint16();
_player = (num ? &_se->_players[num - 1] : 0);
}
ser->saveLoadEntries(this, partEntries);
}
void Part::set_detune(int8 detune) {
_detune_eff = clamp((_detune = detune) + _player->getDetune(), -128, 127);
sendPitchBend();
}
void Part::pitchBend(int16 value) {
_pitchbend = value;
sendPitchBend();
}
void Part::volume(byte value) {
_vol_eff = ((_vol = value) + 1) * _player->getEffectiveVolume() >> 7;
if (_mc)
_mc->volume(_vol_eff);
}
void Part::set_pri(int8 pri) {
_pri_eff = clamp((_pri = pri) + _player->getPriority(), 0, 255);
if (_mc)
_mc->priority(_pri_eff);
}
void Part::set_pan(int8 pan) {
_pan_eff = clamp((_pan = pan) + _player->getPan(), -64, 63);
sendPanPosition(_pan_eff + 0x40);
}
void Part::set_transpose(int8 transpose) {
_transpose = transpose;
_transpose_eff = (_transpose == -128) ? 0 : transpose_clamp(_transpose + _player->getTranspose(), -24, 24);
sendPitchBend();
}
void Part::sustain(bool value) {
_pedal = value;
if (_mc)
_mc->sustain(value);
}
void Part::modulationWheel(byte value) {
_modwheel = value;
if (_mc)
_mc->modulationWheel(value);
}
void Part::chorusLevel(byte value) {
_chorus = value;
if (_mc)
_mc->chorusLevel(value);
}
void Part::effectLevel(byte value) {
_effect_level = value;
sendEffectLevel(value);
}
void Part::fix_after_load() {
set_transpose(_transpose);
volume(_vol);
set_detune(_detune);
set_pri(_pri);
set_pan(_pan);
sendAll();
}
void Part::pitchBendFactor(byte value) {
if (value > 12)
return;
pitchBend(0);
_pitchbend_factor = value;
if (_mc)
_mc->pitchBendFactor(value);
}
void Part::set_onoff(bool on) {
if (_on != on) {
_on = on;
if (!on)
off();
if (!_percussion)
_player->_se->reallocateMidiChannels(_player->getMidiDriver());
}
}
void Part::set_instrument(byte *data) {
if (_se->_pcSpeaker)
_instrument.pcspk(data);
else
_instrument.adlib(data);
if (clearToTransmit())
_instrument.send(_mc);
}
void Part::load_global_instrument(byte slot) {
_player->_se->copyGlobalInstrument(slot, &_instrument);
if (clearToTransmit())
_instrument.send(_mc);
}
void Part::noteOn(byte note, byte velocity) {
if (!_on)
return;
MidiChannel *mc = _mc;
// DEBUG
if (_unassigned_instrument && !_percussion) {
_unassigned_instrument = false;
if (!_instrument.isValid()) {
debug(0, "[%02d] No instrument specified", (int)_chan);
return;
}
}
if (mc && _instrument.isValid()) {
mc->noteOn(note, velocity);
} else if (_percussion) {
mc = _player->getMidiDriver()->getPercussionChannel();
if (!mc)
return;
// FIXME: The following is evil, EVIL!!! Either prev_vol_eff is
// actually meant to be a member of the Part class (i.e. each
// instance of Part keeps a separate copy of it); or it really
// is supposed to be shared by all Part instances -- but then it
// should be implemented as a class static var. As it is, using
// a function level static var in most cases is arcane and evil.
static byte prev_vol_eff = 128;
if (_vol_eff != prev_vol_eff) {
mc->volume(_vol_eff);
prev_vol_eff = _vol_eff;
}
if ((note < 35) && (!_player->_se->isNativeMT32()))
note = Instrument::_gmRhythmMap[note];
mc->noteOn(note, velocity);
}
}
void Part::noteOff(byte note) {
if (!_on)
return;
MidiChannel *mc = _mc;
if (mc) {
mc->noteOff(note);
} else if (_percussion) {
mc = _player->getMidiDriver()->getPercussionChannel();
if (mc)
mc->noteOff(note);
}
}
void Part::init() {
_player = NULL;
_next = NULL;
_prev = NULL;
_mc = NULL;
}
void Part::setup(Player *player) {
_player = player;
_percussion = (player->isMIDI() && _chan == 9); // true;
_on = true;
_pri_eff = player->getPriority();
_pri = 0;
_vol = 127;
_vol_eff = player->getEffectiveVolume();
_pan = clamp(player->getPan(), -64, 63);
_transpose_eff = player->getTranspose();
_transpose = 0;
_detune = 0;
_detune_eff = player->getDetune();
_pitchbend_factor = 2;
_pitchbend = 0;
_effect_level = player->_se->isNativeMT32() ? 127 : 64;
_instrument.clear();
_unassigned_instrument = true;
_chorus = 0;
_modwheel = 0;
_bank = 0;
_pedal = false;
_mc = NULL;
}
void Part::uninit() {
if (!_player)
return;
off();
_player->removePart(this);
_player = NULL;
}
void Part::off() {
if (_mc) {
_mc->allNotesOff();
_mc->release();
_mc = NULL;
}
}
bool Part::clearToTransmit() {
if (_mc)
return true;
if (_instrument.isValid())
_player->_se->reallocateMidiChannels(_player->getMidiDriver());
return false;
}
void Part::sendAll() {
if (!clearToTransmit())
return;
_mc->pitchBendFactor(_pitchbend_factor);
sendPitchBend();
_mc->volume(_vol_eff);
_mc->sustain(_pedal);
_mc->modulationWheel(_modwheel);
sendPanPosition(_pan_eff + 0x40);
if (_instrument.isValid())
_instrument.send(_mc);
// We need to send the effect level after setting up the instrument
// otherwise the reverb setting for MT-32 will be overwritten.
sendEffectLevel(_effect_level);
_mc->chorusLevel(_chorus);
_mc->priority(_pri_eff);
}
void Part::sendPitchBend() {
if (!_mc)
return;
int16 bend = _pitchbend;
// RPN-based pitchbend range doesn't work for the MT32,
// so we'll do the scaling ourselves.
if (_player->_se->isNativeMT32())
bend = bend * _pitchbend_factor / 12;
_mc->pitchBend(clamp(bend + (_detune_eff * 64 / 12) + (_transpose_eff * 8192 / 12), -8192, 8191));
}
void Part::programChange(byte value) {
_bank = 0;
_instrument.program(value, _player->isMT32());
if (clearToTransmit())
_instrument.send(_mc);
}
void Part::set_instrument(uint b) {
_bank = (byte)(b >> 8);
if (_bank)
error("Non-zero instrument bank selection. Please report this");
// HACK: Horrible hack to allow tracing of program change source.
// The Mac version of Monkey Island 2 uses a different program "bank"
// when it gets program change events through the iMuse SysEx handler.
// We emulate this by introducing a special instrument, which sets
// the instrument via sysEx_customInstrument. This seems to be
// exclusively used for special sound effects like the "spit" sound.
if (g_scumm->_game.id == GID_MONKEY2 && g_scumm->_game.platform == Common::kPlatformMacintosh) {
_instrument.macSfx(b);
} else {
_instrument.program((byte)b, _player->isMT32());
}
if (clearToTransmit())
_instrument.send(_mc);
}
void Part::allNotesOff() {
if (!_mc)
return;
_mc->allNotesOff();
}
void Part::sendPanPosition(uint8 value) {
if (!_mc)
return;
// As described in bug report #1088045 "MI2: Minor problems in native MT-32 mode"
// the original iMuse MT-32 driver did revert the panning. So we do the same
// here in our code to have correctly panned sound output.
if (_player->_se->isNativeMT32())
value = 127 - value;
_mc->panPosition(value);
}
void Part::sendEffectLevel(uint8 value) {
if (!_mc)
return;
// As described in bug report #1088045 "MI2: Minor problems in native MT-32 mode"
// for the MT-32 one has to use a sysEx event to change the effect level (rather
// the reverb setting).
if (_player->_se->isNativeMT32()) {
if (value != 127 && value != 0) {
warning("Trying to use unsupported effect level value %d in native MT-32 mode.", value);
if (value >= 64)
value = 127;
else
value = 0;
}
byte message[9];
memcpy(message, "\x41\x00\x16\x12\x00\x00\x06\x00\x00", 9);
message[1] = _mc->getNumber();
message[7] = (value == 127) ? 1 : 0;
message[8] = 128 - (6 + message[7]);
_player->getMidiDriver()->sysEx(message, 9);
} else {
_mc->effectLevel(value);
}
}
} // End of namespace Scumm
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