mirror of
https://github.com/libretro/scummvm.git
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334 lines
9.2 KiB
C++
334 lines
9.2 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001-2003 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include "stdafx.h"
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#include "base/engine.h"
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#include "player_v3a.h"
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#include "scumm.h"
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#include "sound/mixer.h"
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#include "common/timer.h"
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static const uint16 note_freqs[4][12] = {
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{0x06B0,0x0650,0x05F4,0x05A0,0x054C,0x0500,0x04B8,0x0474,0x0434,0x03F8,0x03C0,0x0388},
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{0x0358,0x0328,0x02FA,0x02D0,0x02A6,0x0280,0x025C,0x023A,0x021A,0x01FC,0x01E0,0x01C4},
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{0x01AC,0x0194,0x017D,0x0168,0x0153,0x0140,0x012E,0x011D,0x010D,0x00FE,0x00F0,0x00E2},
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{0x00D6,0x00CA,0x00BE,0x00B4,0x00A9,0x00A0,0x0097,0x008E,0x0086,0x007F,0x00F0,0x00E2}
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};
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////////////////////////////////////////
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//
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// V3 Amiga sound/music driver
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//
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////////////////////////////////////////
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Player_V3A::Player_V3A(Scumm *scumm) {
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int i;
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_scumm = scumm;
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_system = scumm->_system;
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_mixer = scumm->_mixer;
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for (i = 0; i < V3A_MAXSFX; i++)
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_sfx[i].id = _sfx[i].dur = 0;
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for (i = 0; i < V3A_MAXMUS; i++)
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_mus[i].id = _mus[i].dur = 0;
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_curSong = 0;
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_songData = NULL;
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_songPtr = 0;
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_songDelay = 0;
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_music_timer = 0;
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_maxvol = 255;
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scumm->_timer->installProcedure(timerHandler, 16666, this);
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_isinit = false;
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}
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Player_V3A::~Player_V3A() {
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_scumm->_timer->releaseProcedure(timerHandler);
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if (!_isinit)
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return;
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for (int i = 0; _wavetable[i] != NULL; i++) {
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for (int j = 0; j < 6; j++) {
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free(_wavetable[i]->_idat[j]);
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free(_wavetable[i]->_ldat[j]);
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}
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free(_wavetable[i]);
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}
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free(_wavetable);
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}
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void Player_V3A::setMasterVolume (int vol) {
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_maxvol = vol;
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}
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void Player_V3A::stopAllSounds() {
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int i;
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for (i = 0; i < V3A_MAXMUS; i++) {
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if (_mus[i].id)
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_mixer->stopID(V3A_MUS_BASEID + i);
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_mus[i].id = 0;
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_mus[i].dur = 0;
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}
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_curSong = 0;
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_songPtr = 0;
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_songDelay = 0;
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_songData = NULL;
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for (i = 0; i < V3A_MAXSFX; i++) {
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if (_sfx[i].id)
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_mixer->stopID(V3A_SFX_BASEID + i);
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_sfx[i].id = 0;
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_sfx[i].dur = 0;
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}
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}
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void Player_V3A::stopSound(int nr) {
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int i;
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if (nr == _curSong) {
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for (i = 0; i < V3A_MAXMUS; i++) {
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if (_mus[i].id)
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_mixer->stopID(V3A_MUS_BASEID + i);
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_mus[i].id = 0;
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_mus[i].dur = 0;
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}
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_curSong = 0;
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_songPtr = 0;
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_songDelay = 0;
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_songData = NULL;
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} else {
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for (i = 0; i < V3A_MAXSFX; i++) {
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if (_sfx[i].id == nr) {
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_mixer->stopID(V3A_SFX_BASEID + i);
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_sfx[i].id = 0;
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_sfx[i].dur = 0;
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break;
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}
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}
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}
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}
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void Player_V3A::playSoundSFX (int nr, char *data, int size, int rate, int vol, int tl, bool looped, int loopStart, int loopEnd) {
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int i;
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for (i = 0; i < V3A_MAXSFX; i++) {
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if (!_sfx[i].id)
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break;
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}
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if (i == V3A_MAXSFX) {
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warning("player_v3a - too many sound effects playing (%i max)",V3A_MAXSFX);
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return;
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}
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_sfx[i].id = nr;
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_sfx[i].dur = tl;
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vol = (vol * _maxvol) / 255;
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_mixer->playRaw(NULL, data, size, rate, SoundMixer::FLAG_AUTOFREE | (looped ? SoundMixer::FLAG_LOOP : 0),
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V3A_SFX_BASEID + i, vol, 0, loopStart, loopEnd);
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}
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void Player_V3A::playSoundMUS (char *data, int size, int rate, int vol, int tl, bool looped, int loopStart, int loopEnd) {
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int i;
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for (i = 0; i < V3A_MAXMUS; i++) {
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if (!_mus[i].id)
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break;
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}
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if (i == V3A_MAXMUS) {
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warning("player_v3a - too many music channels playing (%i max)",V3A_MAXMUS);
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return;
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}
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_mus[i].id = i + 1;
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_mus[i].dur = tl;
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vol = (vol * _maxvol) / 255;
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_mixer->playRaw(NULL, data, size, rate, SoundMixer::FLAG_AUTOFREE | (looped ? SoundMixer::FLAG_LOOP : 0),
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V3A_MUS_BASEID + i, vol, 0, loopStart, loopEnd);
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}
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void Player_V3A::startSound(int nr) {
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assert(_scumm);
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byte *data = _scumm->getResourceAddress(rtSound, nr);
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assert(data);
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if (_scumm->_gameId != GID_INDY3 && _scumm->_gameId != GID_LOOM)
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error("player_v3a - unknown game!");
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if (!_isinit) {
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int i;
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unsigned char *ptr;
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int offset = 4;
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int numInstruments;
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if (_scumm->_gameId == GID_INDY3) {
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ptr = _scumm->getResourceAddress(rtSound, 83);
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numInstruments = 12;
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} else {
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ptr = _scumm->getResourceAddress(rtSound, 79);
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numInstruments = 9;
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}
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assert(ptr);
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_wavetable = (instData **)malloc((numInstruments + 1) * sizeof(void *));
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for (i = 0; i < numInstruments; i++) {
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_wavetable[i] = (instData *)malloc(sizeof(instData));
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for (int j = 0; j < 6; j++) {
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int off, len;
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off = READ_BE_UINT16(ptr + offset + 0);
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_wavetable[i]->_ilen[j] = len = READ_BE_UINT16(ptr + offset + 2);
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if (len) {
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_wavetable[i]->_idat[j] = (char *)malloc(len);
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memcpy(_wavetable[i]->_idat[j],ptr + off,len);
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} else _wavetable[i]->_idat[j] = NULL;
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off = READ_BE_UINT16(ptr + offset + 4);
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_wavetable[i]->_llen[j] = len = READ_BE_UINT16(ptr + offset + 6);
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if (len) {
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_wavetable[i]->_ldat[j] = (char *)malloc(len);
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memcpy(_wavetable[i]->_ldat[j],ptr + off,len);
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} else _wavetable[i]->_ldat[j] = NULL;
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_wavetable[i]->_oct[j] = READ_BE_UINT16(ptr + offset + 8);
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offset += 10;
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}
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if (_scumm->_gameId == GID_INDY3) {
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_wavetable[i]->_pitadjust = 0;
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offset += 2;
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} else {
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_wavetable[i]->_pitadjust = READ_BE_UINT16(ptr + offset + 2);
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offset += 4;
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}
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}
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_wavetable[i] = NULL;
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_isinit = true;
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}
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if (getSoundStatus(nr))
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stopSound(nr); // if a sound is playing, restart it
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if (data[26]) {
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_curSong = nr;
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_songData = data;
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_songPtr = 0x1C;
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_songDelay = 1;
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_music_timer = 0;
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} else {
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int size = READ_BE_UINT16(data + 12);
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int rate = 3579545 / READ_BE_UINT16(data + 20);
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char *sound = (char *)malloc(size);
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int vol = (data[24] << 2) | (data[24] >> 4);
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memcpy(sound,data + READ_BE_UINT16(data + 8),size);
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if ((READ_BE_UINT16(data + 16) || READ_BE_UINT16(data + 6))) {
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// the first check is for complex (pitch-bending) looped sounds
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// the second check is for simple looped sounds
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int loopStart = READ_BE_UINT16(data + 10) - READ_BE_UINT16(data + 8);
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int loopEnd = READ_BE_UINT16(data + 14);
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int tl = -1;
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if ((_scumm->_gameId == GID_INDY3) && (nr == 60))
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tl = 240; // the "airplane dive" sound needs to end on its own - the game won't stop it
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playSoundSFX(nr, sound, size, rate, vol, tl, true, loopStart, loopEnd);
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} else {
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int tl = 1 + 60 * size / rate;
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playSoundSFX(nr, sound, size, rate, vol, tl, false);
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}
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}
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}
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void Player_V3A::timerHandler(void *refCon) {
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Player_V3A *player = (Player_V3A *)refCon;
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assert(player);
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player->playMusic();
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}
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void Player_V3A::playMusic() {
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int i;
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for (i = 0; i < V3A_MAXSFX; i++) {
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if ((_sfx[i].dur) && (!--_sfx[i].dur))
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stopSound(_sfx[i].id);
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}
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for (i = 0; i < V3A_MAXMUS; i++) {
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if ((_mus[i].dur) && (!--_mus[i].dur)) {
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_scumm->_mixer->stopID(V3A_MUS_BASEID + i);
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_mus[i].id = 0;
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_mus[i].dur = 0;
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}
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}
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_music_timer++;
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if (!_curSong)
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return;
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if (_songDelay && --_songDelay)
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return;
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if (((_songData[_songPtr] & 0xF0) != 0x80) && (_songData[_songPtr] != 0xFB)) {
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// at the end of the song, and it wasn't looped - kill it
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_curSong = 0;
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return;
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}
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while (1) {
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int inst, pit, vol, dur, oct;
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inst = _songData[_songPtr++];
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if ((inst & 0xF0) != 0x80) {
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// tune is at the end - figure out what's still playing
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// and see how long we have to wait until we stop/restart
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for (i = 0; i < V3A_MAXMUS; i++) {
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if (_songDelay < _mus[i].dur)
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_songDelay = _mus[i].dur;
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}
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if (inst == 0xFB) // it's a looped song, restart it afterwards
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_songPtr = 0x1C;
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break;
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}
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inst &= 0xF;
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pit = _songData[_songPtr++];
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vol = _songData[_songPtr++] & 0x7F;
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vol = (vol << 1) | (vol >> 7); // 7-bit volume (Amiga drops the bottom bit), convert to 8-bit
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dur = _songData[_songPtr++];
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if (pit == 0) {
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_songDelay = dur;
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break;
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}
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pit += _wavetable[inst]->_pitadjust;
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oct = (pit / 12) - 2;
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pit = pit % 12;
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if (oct < 0)
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oct = 0;
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if (oct > 5)
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oct = 5;
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char *data = (char *)malloc(_wavetable[inst]->_ilen[oct] + _wavetable[inst]->_llen[oct]);
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if (_wavetable[inst]->_idat[oct])
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memcpy(data, _wavetable[inst]->_idat[oct], _wavetable[inst]->_ilen[oct]);
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if (_wavetable[inst]->_ldat[oct])
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memcpy(data + _wavetable[inst]->_ilen[oct], _wavetable[inst]->_ldat[oct], _wavetable[inst]->_llen[oct]);
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playSoundMUS(data, _wavetable[inst]->_ilen[oct] + _wavetable[inst]->_llen[oct], 3579545 / note_freqs[_wavetable[inst]->_oct[oct]][pit], vol, dur,
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(_wavetable[inst]->_ldat[oct] != NULL), _wavetable[inst]->_ilen[oct], _wavetable[inst]->_ilen[oct] + _wavetable[inst]->_llen[oct]);
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}
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}
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int Player_V3A::getMusicTimer() const {
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return _music_timer / 30;
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}
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int Player_V3A::getSoundStatus(int nr) const {
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if (nr == _curSong)
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return 1;
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for (int i = 0; i < V3A_MAXSFX; i++)
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if (_sfx[i].id == nr)
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return 1;
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return 0;
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}
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