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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2003 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* /scummvm/scumm/player_v3a.cpp
*/
#include "stdafx.h"
#include "common/engine.h"
#include "player_v3a.h"
#include "scumm.h"
#include "sound/mixer.h"
unsigned short _notefreqs[4][12] = {
{0x06B0,0x0650,0x05F4,0x05A0,0x054C,0x0500,0x04B8,0x0474,0x0434,0x03F8,0x03C0,0x0388},
{0x0358,0x0328,0x02FA,0x02D0,0x02A6,0x0280,0x025C,0x023A,0x021A,0x01FC,0x01E0,0x01C4},
{0x01AC,0x0194,0x017D,0x0168,0x0153,0x0140,0x012E,0x011D,0x010D,0x00FE,0x00F0,0x00E2},
{0x00D6,0x00CA,0x00BE,0x00B4,0x00A9,0x00A0,0x0097,0x008E,0x0086,0x007F,0x00F0,0x00E2}
};
////////////////////////////////////////
//
// V3 Amiga sound/music driver
//
////////////////////////////////////////
Player_V3A::Player_V3A(Scumm *scumm) {
int i;
_scumm = scumm;
_system = scumm->_system;
_mixer = scumm->_mixer;
for (i = 0; i < V3A_MAXCHANS; i++)
_soundID[i] = _timeleft[i] = 0;
_curSong = 0;
_songData = NULL;
_songPtr = 0;
_songDelay = 0;
_music_timer = 0;
_maxvol = 255;
_isinit = false;
}
Player_V3A::~Player_V3A() {
for (int i = 0; _wavetable[i] != NULL; i++) {
for (int j = 0; j < 6; j++)
{
free(_wavetable[i]->_idat[j]);
free(_wavetable[i]->_ldat[j]);
}
free(_wavetable[i]);
}
free(_wavetable);
}
void Player_V3A::set_master_volume (int vol) {
_maxvol = vol;
}
void Player_V3A::stopAllSounds() {
_curSong = 0;
_songData = NULL;
_songPtr = 0;
_songDelay = 0;
for (int i = 0; i < V3A_MAXCHANS; i++) {
if (_soundID[i]) {
_mixer->stopID(_soundID[i]);
_soundID[i] = 0;
_timeleft[i] = 0;
}
}
}
void Player_V3A::stopSound(int nr) {
int i;
if (nr == _curSong) {
_curSong = 0;
_songData = NULL;
_songPtr = 0;
_songDelay = 0;
for (i = 0; i < V3A_MAXCHANS; i++)
if ((_soundID[i] >> 8) == nr)
stopSound(_soundID[i--]);
return;
}
for (i = 0; i < V3A_MAXCHANS; i++) {
if (_soundID[i] == nr)
break;
}
if (i == V3A_MAXCHANS)
return;
_mixer->stopID(_soundID[i]);
for (i++; i < V3A_MAXCHANS; i++)
{
_soundID[i - 1] = _soundID[i];
_timeleft[i - 1] = _timeleft[i];
}
_soundID[V3A_MAXCHANS - 1] = 0;
_timeleft[V3A_MAXCHANS - 1] = 0;
}
void Player_V3A::playSound (int nr, char *data, int size, int rate, int vol, int tl, bool looped, int loopStart, int loopEnd) {
int i;
for (i = 0; i < V3A_MAXCHANS; i++)
if (!_soundID[i])
break;
if (i == V3A_MAXCHANS)
{
warning("player_v3a - out of sound channels!");
return;
}
_soundID[i] = nr;
_timeleft[i] = tl;
vol = (vol * _maxvol) / 255;
if (looped)
_mixer->playRaw(NULL, data, size, rate, SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_LOOP, nr, vol, 0, loopStart, loopEnd);
else _mixer->playRaw(NULL, data, size, rate, SoundMixer::FLAG_AUTOFREE, nr, vol, 0);
}
void Player_V3A::startSound(int nr) {
byte *data = _scumm->getResourceAddress(rtSound, nr);
assert(data);
if (!_isinit) {
int i;
if (_scumm->_gameId == GID_INDY3) {
unsigned char *ptr = _scumm->getResourceAddress(rtSound,83);
int offset = 4;
_wavetable = (instData **)malloc(13 * sizeof(void *));
for (i = 0; i < 12; i++) {
_wavetable[i] = (instData *)malloc(sizeof(instData));
for (int j = 0; j < 6; j++) {
int off, len;
off = READ_BE_UINT16(ptr + offset + 0);
_wavetable[i]->_ilen[j] = len = READ_BE_UINT16(ptr + offset + 2);
if (len) {
_wavetable[i]->_idat[j] = (char *)malloc(len);
memcpy(_wavetable[i]->_idat[j],ptr + off,len);
} else _wavetable[i]->_idat[j] = NULL;
off = READ_BE_UINT16(ptr + offset + 4);
_wavetable[i]->_llen[j] = len = READ_BE_UINT16(ptr + offset + 6);
if (len) {
_wavetable[i]->_ldat[j] = (char *)malloc(len);
memcpy(_wavetable[i]->_ldat[j],ptr + off,len);
} else _wavetable[i]->_ldat[j] = NULL;
_wavetable[i]->_oct[j] = READ_BE_UINT16(ptr + offset + 8);
offset += 10;
}
offset += 2;
}
_wavetable[i] = NULL;
}
else if (_scumm->_gameId == GID_LOOM) {
unsigned char *ptr = _scumm->getResourceAddress(rtSound,79);
int offset = 4;
_wavetable = (instData **)malloc(10 * sizeof(void *));
for (i = 0; i < 9; i++) {
_wavetable[i] = (instData *)malloc(sizeof(instData));
for (int j = 0; j < 6; j++) {
int off, len;
off = READ_BE_UINT16(ptr + offset + 0);
_wavetable[i]->_ilen[j] = len = READ_BE_UINT16(ptr + offset + 2);
if (len) {
_wavetable[i]->_idat[j] = (char *)malloc(len);
memcpy(_wavetable[i]->_idat[j],ptr + off,len);
} else _wavetable[i]->_idat[j] = NULL;
off = READ_BE_UINT16(ptr + offset + 4);
_wavetable[i]->_llen[j] = len = READ_BE_UINT16(ptr + offset + 6);
if (len) {
_wavetable[i]->_ldat[j] = (char *)malloc(len);
memcpy(_wavetable[i]->_ldat[j],ptr + off,len);
} else _wavetable[i]->_ldat[j] = NULL;
_wavetable[i]->_oct[j] = READ_BE_UINT16(ptr + offset + 8);
offset += 10;
}
offset += 4;
}
_wavetable[i] = NULL;
}
else
error("player_v3a - unknown game!");
_isinit = true;
}
if (data[26]) {
stopAllSounds();
_curSong = nr;
_songData = data;
_songPtr = 0x1C;
_songDelay = 1;
_music_timer = 0;
} else {
if (_curSong)
return; // don't play music and SFX at the same time
if (getSoundStatus(nr))
stopSound(nr);
int size = READ_BE_UINT16(data + 12);
int rate = 3579545 / READ_BE_UINT16(data + 20);
char *sound = (char *)malloc(size);
int vol = (data[24] << 2) | (data[24] >> 4);
memcpy(sound,data + READ_BE_UINT16(data + 8),size);
if ((READ_BE_UINT16(data + 16) || READ_BE_UINT16(data + 6))) {
// the first check is for complex (pitch-bending) looped sounds
// the second check is for simple looped sounds
int loopStart = READ_BE_UINT16(data + 10) - READ_BE_UINT16(data + 8);
int loopEnd = READ_BE_UINT16(data + 14);
int tl = -1;
if ((_scumm->_gameId == GID_INDY3) && (nr == 60))
tl = 240;
playSound(nr, sound, size, rate, vol, tl, true, loopStart, loopEnd);
} else {
int tl = 1 + 60 * size / rate;
playSound(nr, sound, size, rate, vol, tl, false);
}
}
}
void Player_V3A::playMusic() {
int i;
for (i = 0; i < V3A_MAXCHANS; i++)
if ((_timeleft[i]) && (!--_timeleft[i]))
stopSound(_soundID[i--]);
_music_timer++;
if (_songDelay && --_songDelay)
return;
if (!_curSong)
return;
while (1) {
uint8 inst = _songData[_songPtr++];
if ((inst == 0) || (inst == 0xFC)) {
for (i = 0; i < V3A_MAXCHANS; i++)
if ((_soundID[i] >> 8) == _curSong)
if (_songDelay < _timeleft[i])
_songDelay = _timeleft[i];
_curSong = 0;
break;
}
else if (inst == 0xFB) {
_songPtr = 0x1C;
for (i = 0; i < V3A_MAXCHANS; i++)
if ((_soundID[i] >> 8) == _curSong)
if (_songDelay < _timeleft[i])
_songDelay = _timeleft[i];
break;
}
uint8 pitch = _songData[_songPtr++];
uint8 unk = _songData[_songPtr++];
uint8 dur = _songData[_songPtr++];
if ((inst == 0x80) && (pitch == 0) && (unk == 0)) {
_songDelay = dur;
break;
}
if (_scumm->_gameId == GID_INDY3)
pitch -= 24;
else if (_scumm->_gameId == GID_LOOM) // Loom music still has a lot of problems
pitch -= 21; // but this adjustment seems to get it mostly right
int pit = pitch % 12;
int oct = (pitch / 12);
if (oct > 5)
oct = 5;
inst &= 0x7F;
char *data = (char *)malloc(_wavetable[inst]->_ilen[oct] + _wavetable[inst]->_llen[oct]);
if (_wavetable[inst]->_idat[oct])
memcpy(data, _wavetable[inst]->_idat[oct], _wavetable[inst]->_ilen[oct]);
if (_wavetable[inst]->_ldat[oct])
memcpy(data + _wavetable[inst]->_ilen[oct], _wavetable[inst]->_ldat[oct], _wavetable[inst]->_llen[oct]);
if (!_lastSample)
_lastSample++;
int id = (_curSong << 8) | _lastSample++;
playSound(id,data,_wavetable[inst]->_ilen[oct] + _wavetable[inst]->_llen[oct],3579545 / _notefreqs[_wavetable[inst]->_oct[oct]][pit],255,dur,(_wavetable[inst]->_ldat[oct] != NULL),_wavetable[inst]->_ilen[oct],_wavetable[inst]->_ilen[oct] + _wavetable[inst]->_llen[oct]);
}
}
int Player_V3A::getMusicTimer() const {
return _music_timer / 30;
}
int Player_V3A::getSoundStatus(int nr) const {
if (nr == _curSong)
return 1;
for (int i = 0; i < V3A_MAXCHANS; i++)
if (_soundID[i] == nr)
return 1;
return 0;
}
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