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scummvm/sound.cpp
Max Horn aec2530529 got rid of some g_scumm uses 
svn-id: r4482
2002-07-07 21:27:06 +00:00

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001/2002 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.
*
* $Header$
*
*/
#include "stdafx.h"
#include "scumm.h"
#include "sound/mididrv.h"
#include "sound/imuse.h"
#include "actor.h"
#include "config-file.h"
#ifdef _WIN32_WCE
extern void *bsearch(const void *, const void *, size_t,
size_t, int (*x) (const void *, const void *));
#endif
void Scumm::addSoundToQueue(int sound)
{
if (!(_features & GF_AFTER_V7)) {
_vars[VAR_LAST_SOUND] = sound;
ensureResourceLoaded(rtSound, sound);
addSoundToQueue2(sound);
}
if (_features & GF_AUDIOTRACKS)
warning("Requesting audio track: %d", sound);
}
void Scumm::addSoundToQueue2(int sound)
{
if (_soundQue2Pos < 10) {
_soundQue2[_soundQue2Pos++] = sound;
}
}
void Scumm::processSoundQues()
{
byte d;
int i, j;
int num;
int16 data[16];
IMuse *se;
processSfxQueues();
while (_soundQue2Pos) {
d = _soundQue2[--_soundQue2Pos];
if (d)
playSound(d);
}
for (i = 0; i < _soundQuePos;) {
num = _soundQue[i++];
if (i + num > _soundQuePos) {
warning("processSoundQues: invalid num value");
break;
}
for (j = 0; j < 16; j++)
data[j] = 0;
if (num > 0) {
for (j = 0; j < num; j++)
data[j] = _soundQue[i + j];
i += num;
se = _imuse;
#if 0
debug(1, "processSoundQues(%d,%d,%d,%d,%d,%d,%d,%d,%d)",
data[0] >> 8,
data[0] & 0xFF,
data[1], data[2], data[3], data[4], data[5], data[6], data[7]
);
#endif
if ((_gameId == GID_DIG) && ((data[0] == 12) || (data[0] == 14))){
uint32 size = 0, rate = 0, tag, chan = 0, bits = 0;
uint8 * ptr = getResourceAddress(rtSound, data[1]);
if (ptr != NULL) {
ptr+=16; /* Skip header */
for (;;) {
tag = READ_BE_UINT32(ptr); ptr+=4;
switch(tag) {
case MKID_BE('FRMT'):
size = READ_BE_UINT32(ptr); ptr+=12;
bits = READ_BE_UINT32(ptr); ptr+=4;
rate = READ_BE_UINT32(ptr); ptr+=4;
chan = READ_BE_UINT32(ptr); ptr+=4;
break;
case MKID_BE('TEXT'):
case MKID_BE('REGN'):
case MKID_BE('STOP'):
case MKID_BE('JUMP'):
size = READ_BE_UINT32(ptr); ptr+=size+4;
break;
case MKID_BE('DATA'):
size = READ_BE_UINT32(ptr); ptr+=4;
break;
default:
error("Unknown sfx header %c%c%c%c", tag>>24, tag>>16, tag>>8, tag);
}
if (tag == MKID_BE('DATA')) break;
}
if (bits == 8) {
byte * buffer = (byte*)malloc (size);
memcpy(buffer, ptr, size);
if (chan == 1) {
_mixer->play_raw(NULL, buffer, size, rate, SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_UNSIGNED);
}
else if (chan == 2) {
_mixer->play_raw(NULL, buffer, size, rate, SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_UNSIGNED | SoundMixer::FLAG_STEREO);
}
} else if (bits == 12) {
uint32 s_size = (size * 4) / 3;
byte * buffer = (byte*)malloc (s_size + 4);
uint32 l = 0, r = 0, tmp;
for (; l < size; l += 3)
{
tmp = (ptr[l + 1] & 0x0f) << 8;
tmp = (tmp | ptr[l + 0]) << 4;
tmp -= 0x8000;
buffer[r++] = (uint8)((tmp >> 8) & 0xff);
buffer[r++] = (uint8)(tmp & 0xff);
tmp = (ptr[l + 1] & 0xf0) << 4;
tmp = (tmp | ptr[l + 2]) << 4;
tmp -= 0x8000;
buffer[r++] = (uint8)((tmp >> 8) & 0xff);
buffer[r++] = (uint8)(tmp & 0xff);
}
if (chan == 1) {
_mixer->play_raw(NULL, buffer, s_size, rate, SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_16BITS);
}
else if (chan == 2) {
_mixer->play_raw(NULL, buffer, s_size, rate, SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_16BITS | SoundMixer::FLAG_STEREO);
}
}
}
}
if (!(_features & GF_AFTER_V7)) {
if (se)
_vars[VAR_SOUNDRESULT] =
(short)se->do_command(data[0], data[1], data[2], data[3], data[4],
data[5], data[6], data[7]);
}
}
}
_soundQuePos = 0;
}
void Scumm::playSound(int sound)
{
byte *ptr;
IMuse *se = _imuse;
ptr = getResourceAddress(rtSound, sound);
if (ptr != NULL && READ_UINT32_UNALIGNED(ptr) == MKID('SOUN')) {
ptr += 8;
_vars[VAR_MI1_TIMER] = 0;
#ifdef COMPRESSED_SOUND_FILE
if ((playMP3CDTrack(ptr[16], ptr[17] == 0xff ? -1 : ptr[17],
(ptr[18] * 60 + ptr[19]) * 75 + ptr[20], 0)) == -1)
#endif
_system->play_cdrom(ptr[16], ptr[17] == 0xff ? -1 : ptr[17],
(ptr[18] * 60 + ptr[19]) * 75 + ptr[20], 0);
current_cd_sound = sound;
return;
}
// Support for SFX in Monkey Island 1, Mac version
// This is rather hackish right now, but works OK. SFX are not sounding
// 100% correct, though, not sure right now what is causing this.
if (ptr != NULL && READ_UINT32_UNALIGNED(ptr) == MKID('Mac1')) {
// Read info from the header
int size = READ_UINT32_UNALIGNED(ptr+0x60);
int rate = READ_UINT32_UNALIGNED(ptr+0x64) >> 16;
// Skip over the header (fixed size)
ptr += 0x72;
// Allocate a sound buffer, copy the data into it, and play
char *sound = (char*)malloc(size);
memcpy(sound, ptr, size);
_mixer->play_raw(NULL, sound, size, rate, SoundMixer::FLAG_UNSIGNED | SoundMixer::FLAG_AUTOFREE);
return;
}
// Support for Putt-Putt sounds - very hackish, too 8-)
else if (ptr != NULL && READ_UINT32_UNALIGNED(ptr) == MKID('DIGI')) {
// TODO - discover what data the first chunk, HSHD, contains
// it might be useful here.
ptr += 8 + READ_BE_UINT32_UNALIGNED(ptr+12);
if (READ_UINT32_UNALIGNED(ptr) != MKID('SDAT'))
return; // abort
int size = READ_BE_UINT32_UNALIGNED(ptr+4);
int rate = 8000; // FIXME - what value here ?!? this is just a guess for now
// Allocate a sound buffer, copy the data into it, and play
char *sound = (char*)malloc(size);
memcpy(sound, ptr+8, size);
_mixer->play_raw(NULL, sound, size, rate, SoundMixer::FLAG_UNSIGNED | SoundMixer::FLAG_AUTOFREE);
return;
}
if ((_features & GF_OLD256) || (_gameId == GID_MONKEY_VGA))
return; /* FIXME */
if (se) {
getResourceAddress(rtSound, sound);
se->start_sound(sound);
}
}
void Scumm::processSfxQueues()
{
Actor *a;
int act;
bool b, finished;
if (_talk_sound_mode != 0) {
if (_talk_sound_mode == 2)
_talkChannel = startTalkSound(_talk_sound_a, _talk_sound_b, _talk_sound_mode);
else
startTalkSound(_talk_sound_a, _talk_sound_b, _talk_sound_mode);
_talk_sound_mode = 0;
}
if (_vars[VAR_TALK_ACTOR]) { //_sfxMode == 2) {
act = _vars[VAR_TALK_ACTOR];
if (_talkChannel < 0)
finished = false;
else if (_mixer->_channels[_talkChannel] == NULL)
finished = true;
else
finished = false;
if (act != 0 && (uint) act < 0x80 && !string[0].no_talk_anim) {
a = derefActorSafe(act, "processSfxQueues");
if (a->room == _currentRoom && (finished || !_endOfMouthSync)) {
b = true;
if (!finished)
b = isMouthSyncOff(_curSoundPos);
if (_mouthSyncMode != b) {
_mouthSyncMode = b;
a->startAnimActor(b ? a->talkFrame2 : a->talkFrame1);
}
}
}
if (finished && _talkDelay == 0) {
stopTalk();
_sfxMode = 0;
_talkChannel = -1;
}
}
if (_sfxMode == 1) {
if (isSfxFinished()) {
_sfxMode = 0;
}
}
}
#ifdef COMPRESSED_SOUND_FILE
static int compar(const void *a, const void *b)
{
return ((MP3OffsetTable *) a)->org_offset -
((MP3OffsetTable *) b)->org_offset;
}
#endif
int Scumm::startTalkSound(uint32 offset, uint32 b, int mode)
{
int num = 0, i;
byte file_byte, file_byte_2;
int size;
if (!_sfxFile) {
warning("startTalkSound: SFX file is not open");
return -1;
}
if (b > 8) {
num = (b - 8) >> 1;
}
#ifdef COMPRESSED_SOUND_FILE
if (offset_table != NULL) {
MP3OffsetTable *result = NULL, key;
key.org_offset = offset;
result = (MP3OffsetTable *) bsearch(&key, offset_table, num_sound_effects,
sizeof(MP3OffsetTable), compar);
if (result == NULL) {
warning("startTalkSound: did not find sound at offset %d !", offset);
return -1;
}
if (2 * num != result->num_tags) {
warning("startTalkSound: number of tags do not match (%d - %d) !", b,
result->num_tags);
num = result->num_tags;
}
offset = result->new_offset;
size = result->compressed_size;
} else
#endif
{
offset += 8;
size = -1;
}
fileSeek((FILE *) _sfxFile, offset, SEEK_SET);
i = 0;
while (num > 0) {
fileRead((FILE *) _sfxFile, &file_byte, sizeof(file_byte));
fileRead((FILE *) _sfxFile, &file_byte_2, sizeof(file_byte_2));
_mouthSyncTimes[i++] = file_byte | (file_byte_2 << 8);
num--;
}
_mouthSyncTimes[i] = 0xFFFF;
_sfxMode = mode;
_curSoundPos = 0;
_mouthSyncMode = true;
return startSfxSound(_sfxFile, size);
}
void Scumm::stopTalkSound()
{
if (_sfxMode == 2) {
stopSfxSound();
_sfxMode = 0;
}
}
bool Scumm::isMouthSyncOff(uint pos)
{
uint j;
bool val = true;
uint16 *ms = _mouthSyncTimes;
_endOfMouthSync = false;
do {
val ^= 1;
j = *ms++;
if (j == 0xFFFF) {
_endOfMouthSync = true;
break;
}
} while (pos > j);
return val;
}
int Scumm::isSoundRunning(int sound)
{
IMuse *se;
int i;
if (sound == current_cd_sound)
#ifdef COMPRESSED_SOUND_FILE
if (pollMP3CD())
return 1;
else
#endif
return _system->poll_cdrom();
i = _soundQue2Pos;
while (i--) {
if (_soundQue2[i] == sound)
return 1;
}
if (isSoundInQueue(sound))
return 1;
if (!isResourceLoaded(rtSound, sound))
return 0;
se = _imuse;
if (!se)
return 0;
return se->get_sound_status(sound);
}
bool Scumm::isSoundInQueue(int sound)
{
int i = 0, j, num;
int16 table[16];
while (i < _soundQuePos) {
num = _soundQue[i++];
memset(table, 0, sizeof(table));
if (num > 0) {
for (j = 0; j < num; j++)
table[j] = _soundQue[i + j];
i += num;
if (table[0] == 0x10F && table[1] == 8 && table[2] == sound)
return 1;
}
}
return 0;
}
void Scumm::stopSound(int a)
{
IMuse *se;
int i;
if (a == current_cd_sound) {
current_cd_sound = 0;
#ifdef COMPRESSED_SOUND_FILE
if (stopMP3CD() == -1)
#endif
_system->stop_cdrom();
}
se = _imuse;
if (se)
se->stop_sound(a);
for (i = 0; i < 10; i++)
if (_soundQue2[i] == (byte)a)
_soundQue2[i] = 0;
}
void Scumm::stopAllSounds()
{
IMuse *se = _imuse;
if (current_cd_sound != 0) {
current_cd_sound = 0;
#ifdef COMPRESSED_SOUND_FILE
if (stopMP3CD() == -1)
#endif
_system->stop_cdrom();
}
if (se) {
se->stop_all_sounds();
se->clear_queue();
}
clearSoundQue();
stopSfxSound();
}
void Scumm::clearSoundQue()
{
_soundQue2Pos = 0;
memset(_soundQue2, 0, sizeof(_soundQue2));
}
void Scumm::soundKludge(int16 * list)
{
int16 *ptr;
int i;
if (list[0] == -1) {
processSoundQues();
return;
}
_soundQue[_soundQuePos++] = 8;
ptr = _soundQue + _soundQuePos;
_soundQuePos += 8;
for (i = 0; i < 8; i++)
*ptr++ = list[i];
if (_soundQuePos > 0x100)
error("Sound que buffer overflow");
}
void Scumm::talkSound(uint32 a, uint32 b, int mode)
{
_talk_sound_a = a;
_talk_sound_b = b;
_talk_sound_mode = mode;
}
/* The sound code currently only supports General Midi.
* General Midi is used in Day Of The Tentacle.
* Roland music is also playable, but doesn't sound well.
* A mapping between roland instruments and GM instruments
* is needed.
*/
void Scumm::setupSound()
{
IMuse *se = _imuse;
if (se) {
se->setBase(res.address[rtSound]);
if (!scummcfg->get("music_volume"))
_sound_volume_music = 60;
else
_sound_volume_music = atoi(scummcfg->get("music_volume"));
if (!scummcfg->get("master_volume"))
_sound_volume_master = 125;
else
_sound_volume_master = atoi(scummcfg->get("master_volume"));
if (!scummcfg->get("sfx_volume"))
_sound_volume_sfx = 100;
else
_sound_volume_sfx = atoi(scummcfg->get("sfx_volume"));
se->set_master_volume(_sound_volume_master);
se->set_music_volume(_sound_volume_music);
_mixer->set_volume(_sound_volume_sfx);
}
_sfxFile = openSfxFile();
}
void Scumm::pauseSounds(bool pause)
{
IMuse *se = _imuse;
if (se)
se->pause(pause);
_soundsPaused = pause;
_mixer->pause(pause);
}
enum {
SOUND_HEADER_SIZE = 26,
SOUND_HEADER_BIG_SIZE = 26 + 8,
};
int Scumm::startSfxSound(void *file, int file_size)
{
char ident[8];
int block_type;
byte work[8];
uint size = 0, i;
int rate, comp;
byte *data;
#ifdef COMPRESSED_SOUND_FILE
if (file_size > 0) {
data = (byte *)calloc(file_size + MAD_BUFFER_GUARD, 1);
if (fread(data, file_size, 1, (FILE *) file) != 1) {
/* no need to free the memory since error will shut down */
error("startSfxSound: cannot read %d bytes", size);
return -1;
}
return playSfxSound_MP3(data, file_size);
}
#endif
if (fread(ident, 8, 1, (FILE *) file) != 1)
goto invalid;
if (!memcmp(ident, "VTLK", 4)) {
fseek((FILE *) file, SOUND_HEADER_BIG_SIZE - 8, SEEK_CUR);
} else if (!memcmp(ident, "Creative", 8)) {
fseek((FILE *) file, SOUND_HEADER_SIZE - 8, SEEK_CUR);
} else {
invalid:;
warning("startSfxSound: invalid header");
return -1;
}
block_type = getc((FILE *) file);
if (block_type != 1) {
warning("startSfxSound: Expecting block_type == 1, got %d", block_type);
return -1;
}
fread(work, 3, 1, (FILE *) file);
size = (work[0] | (work[1] << 8) | (work[2] << 16)) - 2;
rate = getc((FILE *) file);
comp = getc((FILE *) file);
if (comp != 0) {
warning("startSfxSound: Unsupported compression type %d", comp);
return -1;
}
data = (byte *)malloc(size);
if (data == NULL) {
error("startSfxSound: out of memory");
return -1;
}
if (fread(data, size, 1, (FILE *) file) != 1) {
/* no need to free the memory since error will shut down */
error("startSfxSound: cannot read %d bytes", size);
return -1;
}
for (i = 0; i < size; i++) {
// Fixme: From WinCE port
if (_sound_volume_sfx != 100)
data[i] = _sound_volume_sfx * data[i] / 100;
data[i] ^= 0x80;
}
return playSfxSound(data, size, 1000000 / (256 - rate));
}
#ifdef COMPRESSED_SOUND_FILE
static int get_int(FILE * f)
{
int ret = 0;
for (int size = 0; size < 4; size++) {
int c = fgetc(f);
if (c == EOF) {
error("Unexpected end of file !!!");
}
ret <<= 8;
ret |= c;
}
return ret;
}
#endif
void *Scumm::openSfxFile()
{
char buf[256];
FILE *file = NULL;
if (_gameId == GID_DIG) {
int tag, offset, num_files;
sprintf(buf, "%s%svoice.bun", _gameDataPath, _exe_name);
file = fopen(buf, "rb");
if (!file) {
warning("Unable to open DIG voice bundle: %s", buf);
return NULL;
}
tag = fileReadDwordBE(file);
offset = fileReadDwordBE(file);
num_files = fileReadDwordBE(file);
bundle_table = (BundleAudioTable *) malloc(num_files * sizeof(BundleAudioTable));
num_sound_effects = num_files;
fileSeek(file, offset, SEEK_SET);
for (int i=0; i < num_files; i++) {
char filename[13], c;
int z = 0;
int z2;
/* Construct filename */
for (z2=0;z2<8; z2++)
if ((c = fileReadByte(file)) != 0)
filename[z++] = c;
filename[z++] = '.';
for (z2=0;z2<4;z2++)
if ((c = fileReadByte(file)) != 0)
filename[z++] = c;
filename[z] = '\0';
strcpy(bundle_table[i].filename, filename);
bundle_table[i].offset = fileReadDwordBE(file);
bundle_table[i].size = fileReadDwordBE(file);
}
return file;
}
/* Try opening the file <_exe_name>.sou first, eg tentacle.sou.
* That way, you can keep .sou files for multiple games in the
* same directory */
#ifdef COMPRESSED_SOUND_FILE
offset_table = NULL;
sprintf(buf, "%s%s.so3", _gameDataPath, _exe_name);
file = fopen(buf, "rb");
if (!file) {
sprintf(buf, "%smonster.so3", _gameDataPath);
file = fopen(buf, "rb");
}
if (file != NULL) {
/* Now load the 'offset' index in memory to be able to find the MP3 data
The format of the .SO3 file is easy :
- number of bytes of the 'index' part
- N times the following fields (4 bytes each) :
+ offset in the original sound file
+ offset of the MP3 data in the .SO3 file WITHOUT taking into account
the index field and the 'size' field
+ the number of 'tags'
+ the size of the MP3 data
- and then N times :
+ the tags
+ the MP3 data
*/
int size, compressed_offset;
MP3OffsetTable *cur;
compressed_offset = get_int(file);
offset_table = (MP3OffsetTable *) malloc(compressed_offset);
num_sound_effects = compressed_offset / 16;
size = compressed_offset;
cur = offset_table;
while (size > 0) {
cur[0].org_offset = get_int(file);
cur[0].new_offset = get_int(file) + compressed_offset + 4; /* The + 4 is to take into accound the 'size' field */
cur[0].num_tags = get_int(file);
cur[0].compressed_size = get_int(file);
size -= 4 * 4;
cur++;
}
return file;
}
#endif
sprintf(buf, "%s%s.sou", _gameDataPath, _exe_name);
file = fopen(buf, "rb");
if (!file) {
sprintf(buf, "%smonster.sou", _gameDataPath);
file = fopen(buf, "rb");
}
return file;
}
void Scumm::stopSfxSound()
{
_mixer->stop_all();
}
bool Scumm::isSfxFinished()
{
return !_mixer->has_active_channel();
}
#define NextBit bit = mask&1; mask>>=1; if (!--bitsleft) {mask = READ_LE_UINT16(srcptr); srcptr+=2; bitsleft=16;}
int CompDecode(unsigned char *src, unsigned char *dst)
{
unsigned char *result, *srcptr = src, *dstptr = dst;
int data, size, bit, bitsleft = 16, mask = READ_LE_UINT16(srcptr);
srcptr+=2;
while(1) {
NextBit
if (bit) {
*dstptr++ = *srcptr++;
} else {
NextBit
if (!bit) {
NextBit size = bit<<1;
NextBit size = (size|bit) + 3;
data = *srcptr++ | 0xffffff00;
} else {
data = *srcptr++;
size = *srcptr++;
data |= 0xfffff000 + ((size & 0xf0) << 4);
size = (size & 0x0f) + 3;
if (size==3)
if (((*srcptr++)+1) == 1)
return dstptr - dst; /* End of buffer */
}
result = dstptr+data;
while (size--)
*dstptr++=*result++;
}
}
}
#undef NextBit
typedef struct {int offset, size, codec;} COMP_table;
void Scumm::decompressBundleSound(int index) {
int i, z;
COMP_table table[50];
unsigned char *CompInput, *CompOutput, *CompFinal, *Final;
int outputSize, finalSize;
fileSeek(_sfxFile, bundle_table[index].offset, SEEK_SET);
int tag = fileReadDwordBE(_sfxFile);
int num = fileReadDwordBE(_sfxFile);
fileReadDwordBE(_sfxFile); fileReadDwordBE(_sfxFile);
// DO -NOT- change these MKID_BE calls to MKID! If you have
// to do so, then your ScummSys.H file is detecting the
// wrong endian. - Ender
if (tag != MKID_BE('COMP')) {
warning("Compressed sound %d invalid (%c%c%c%c)", index, tag>>24, tag>>16, tag>>8, tag);
return;
}
/* Read compression table */
for (i=0; i<num; i++) {
table[i].offset = fileReadDwordBE(_sfxFile);
table[i].size = fileReadDwordBE(_sfxFile);
table[i].codec = fileReadDwordBE(_sfxFile);
fileReadDwordBE(_sfxFile);
}
CompFinal = (unsigned char *)malloc(1000000);
finalSize = 0;
/* Decompress data */
for (i=0; i<num; i++) {
unsigned char *p;
fileSeek(_sfxFile, bundle_table[index].offset + table[i].offset, SEEK_SET);
CompInput = (unsigned char *)malloc(table[i].size);
CompOutput = (unsigned char *)malloc(10000);
fileRead((FILE *)_sfxFile, CompInput, table[i].size);
switch(table[i].codec) {
case 0:
outputSize = table[i].size;
memcpy(&CompOutput[0], &CompInput[0], outputSize);
break;
case 1:
outputSize = CompDecode(&CompInput[0], &CompOutput[0]);
break;
case 2:
outputSize = CompDecode(&CompInput[0], &CompOutput[0]);
p = CompOutput;
for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
break;
case 3:
outputSize = CompDecode(&CompInput[0], &CompOutput[0]);
p = CompOutput;
for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
break;
default:
printf("Unknown codec %d!\n", table[i].codec);
outputSize = 0;
break;
}
memcpy(&CompFinal[finalSize], &CompOutput[0], outputSize);
finalSize+=outputSize;
free(CompInput); CompInput = NULL;
free(CompOutput); CompOutput= NULL;
}
{ /* Parse decompressed data */
int rate = 22050;
byte *ptr = CompFinal;
int tag, size = -1;
tag = READ_BE_UINT32(ptr); ptr+=4;
if (tag != MKID_BE('iMUS')) {
warning("Decompression of bundle sound failed");
free(CompFinal);
return;
}
ptr+=12; /* Skip header */
while(tag != MKID_BE('DATA')) {
tag = READ_BE_UINT32(ptr); ptr+=4;
switch(tag) {
case MKID_BE('FRMT'):
size = READ_BE_UINT32(ptr); ptr+=16;
rate = READ_BE_UINT32(ptr); ptr+=8;
break;
case MKID_BE('TEXT'):
case MKID_BE('REGN'):
case MKID_BE('STOP'):
size = READ_BE_UINT32(ptr); ptr+=size+4;
break;
case MKID_BE('DATA'):
size = READ_BE_UINT32(ptr); ptr+=4;
break;
default:
error("Unknown bundle header %c%c%c%c", tag>>24, tag>>16, tag>>8, tag);
}
}
if (size < 0) {
warning("Decompression of bundle sound failed (no size field)");
free(CompFinal);
return;
}
Final = (unsigned char *)malloc(size);
memcpy(&Final[0], &ptr[0], size);
_mixer->play_raw(NULL, Final, size, rate, SoundMixer::FLAG_UNSIGNED | SoundMixer::FLAG_AUTOFREE);
free(CompFinal);
}
}
void Scumm::playBundleSound(char *sound)
{
if (!_sfxFile) {
warning("playBundleSound: SFX file is not open");
return;
}
for (int i=0; i < num_sound_effects; i++) {
if (!scumm_stricmp(sound, bundle_table[i].filename)) {
decompressBundleSound(i);
return;
}
}
warning("playBundleSound can't find %s", sound);
}
int Scumm::playSfxSound(void *sound, uint32 size, uint rate)
{
if (_soundsPaused)
return -1;
return _mixer->play_raw(NULL, sound, size, rate, SoundMixer::FLAG_AUTOFREE);
}
int Scumm::playSfxSound_MP3(void *sound, uint32 size)
{
#ifdef COMPRESSED_SOUND_FILE
if (_soundsPaused)
return -1;
return _mixer->play_mp3(NULL, sound, size, SoundMixer::FLAG_AUTOFREE);
#endif
return -1;
}
#ifdef COMPRESSED_SOUND_FILE
int Scumm::getCachedTrack(int track) {
int i;
char track_name[1024];
FILE* file;
int current_index;
struct mad_stream stream;
struct mad_frame frame;
unsigned char buffer[8192];
unsigned int buflen = 0;
int count = 0;
// See if we find the track in the cache
for (i=0; i<CACHE_TRACKS; i++)
if (_cached_tracks[i] == track) {
if (_mp3_tracks[i])
return i;
else
return -1;
}
current_index = _current_cache++;
_current_cache %= CACHE_TRACKS;
// Not found, see if it exists
sprintf(track_name, "%strack%d.mp3", _gameDataPath, track);
file = fopen(track_name, "rb");
_cached_tracks[current_index] = track;
/* First, close the previous file */
if (_mp3_tracks[current_index])
fclose(_mp3_tracks[current_index]);
_mp3_tracks[current_index] = NULL;
if (!file) {
// This warning is pretty pointless.
debug(1, "Track %d not available in mp3 format", track);
return -1;
}
// Check the format and bitrate
mad_stream_init(&stream);
mad_frame_init(&frame);
while (1) {
if (buflen < sizeof(buffer)) {
int bytes;
bytes = fread(buffer + buflen, 1, sizeof(buffer) - buflen, file);
if (bytes <= 0) {
if (bytes == -1) {
warning("Invalid format for track %d", track);
goto error;
}
break;
}
buflen += bytes;
}
mad_stream_buffer(&stream, buffer, buflen);
while (1) {
if (mad_frame_decode(&frame, &stream) == -1) {
if (!MAD_RECOVERABLE(stream.error))
break;
if (stream.error != MAD_ERROR_BADCRC)
continue;
}
if (count++)
break;
}
if (count || stream.error != MAD_ERROR_BUFLEN)
break;
memmove(buffer, stream.next_frame,
buflen = &buffer[buflen] - stream.next_frame);
}
if (count)
memcpy(&_mad_header[current_index], &frame.header, sizeof(mad_header));
else {
warning("Invalid format for track %d", track);
goto error;
}
mad_frame_finish(&frame);
mad_stream_finish(&stream);
// Get file size
fseek(file, 0, SEEK_END);
_mp3_size[current_index] = ftell(file);
_mp3_tracks[current_index] = file;
return current_index;
error:
mad_frame_finish(&frame);
mad_stream_finish(&stream);
fclose(file);
return -1;
}
int Scumm::playMP3CDTrack(int track, int num_loops, int start, int delay) {
int index;
unsigned int offset;
mad_timer_t duration;
_vars[VAR_MI1_TIMER] = 0;
if (_soundsPaused)
return 0;
if ((num_loops == 0) && (start == 0)) {
return 0;
}
index = getCachedTrack(track);
if (index < 0)
return -1;
// Calc offset. As all bitrates are in kilobit per seconds, the division by 200 is always exact
offset = (start * (_mad_header[index].bitrate / (8 * 25))) / 3;
// Calc delay
if (!delay) {
mad_timer_set(&duration, (_mp3_size[index] * 8) / _mad_header[index].bitrate,
(_mp3_size[index] * 8) % _mad_header[index].bitrate, _mad_header[index].bitrate);
} else {
mad_timer_set(&duration, delay / 75, delay % 75, 75);
}
// Go
fseek(_mp3_tracks[index], offset, SEEK_SET);
if (_mp3_cd_playing == true)
_mixer->stop(_mp3_index);
_mp3_index = _mixer->play_mp3_cdtrack(NULL, _mp3_tracks[index], duration);
_mp3_cd_playing = true;
return 0;
}
int Scumm::stopMP3CD() {
if (_mp3_cd_playing == true) {
_mixer->stop(_mp3_index);
_mp3_cd_playing = false;
return 0;
}
return -1;
}
int Scumm::pollMP3CD() {
if (_mp3_cd_playing == true)
return 1;
return 0;
}
int Scumm::updateMP3CD() {
if (_mp3_cd_playing == false)
return -1;
if (_mixer->_channels[_mp3_index] == NULL) {
warning("Error in MP3 decoding");
return -1;
}
if (_mixer->_channels[_mp3_index]->sound_finished())
stopMP3CD();
return 0;
}
#endif
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