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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2004 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 "sound.h"
#include "common/util.h"
#include "resman.h"
#include "logic.h"
#include "sword1.h"
namespace Sword1 {
#define SOUND_SPEECH_ID 1
#define SPEECH_FLAGS (SoundMixer::FLAG_16BITS | SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_LITTLE_ENDIAN)
Sound::Sound(const char *searchPath, SoundMixer *mixer, ResMan *pResMan) {
strcpy(_filePath, searchPath);
_mixer = mixer;
_resMan = pResMan;
_cowHeader = NULL;
_endOfQueue = 0;
_currentCowFile = 0;
_speechVolL = _speechVolR = _sfxVolL = _sfxVolR = 192;
}
int Sound::addToQueue(int32 fxNo) {
bool alreadyInQueue = false;
for (uint8 cnt = 0; (cnt < _endOfQueue) && (!alreadyInQueue); cnt++)
if (_fxQueue[cnt].id == (uint32)fxNo)
alreadyInQueue = true;
if (!alreadyInQueue) {
if (_endOfQueue == MAX_FXQ_LENGTH) {
warning("Sound queue overflow");
return 0;
}
_resMan->resOpen(_fxList[fxNo].sampleId);
_fxQueue[_endOfQueue].id = fxNo;
if (_fxList[fxNo].type == FX_SPOT)
_fxQueue[_endOfQueue].delay = _fxList[fxNo].delay + 1;
else
_fxQueue[_endOfQueue].delay = 1;
_endOfQueue++;
return 1;
}
return 0;
}
void Sound::engine(void) {
// first of all, add any random sfx to the queue...
for (uint16 cnt = 0; cnt < TOTAL_FX_PER_ROOM; cnt++) {
uint16 fxNo = _roomsFixedFx[Logic::_scriptVars[SCREEN]][cnt];
if (fxNo) {
if (_fxList[fxNo].type == FX_RANDOM) {
if (_rnd.getRandomNumber(_fxList[fxNo].delay) == 0)
addToQueue(fxNo);
}
} else
break;
}
// now process the queue
for (uint8 cnt2 = 0; cnt2 < _endOfQueue; cnt2++) {
if (_fxQueue[cnt2].delay > 0) {
_fxQueue[cnt2].delay--;
if (_fxQueue[cnt2].delay == 0)
playSample(&_fxQueue[cnt2]);
} else {
if (!_fxQueue[cnt2].handle.isActive()) { // sound finished
_resMan->resClose(_fxList[_fxQueue[cnt2].id].sampleId);
if (cnt2 != _endOfQueue-1)
_fxQueue[cnt2] = _fxQueue[_endOfQueue - 1];
_endOfQueue--;
}
}
}
}
void Sound::fnStopFx(int32 fxNo) {
_mixer->stopID(fxNo);
for (uint8 cnt = 0; cnt < _endOfQueue; cnt++)
if (_fxQueue[cnt].id == (uint32)fxNo) {
if (!_fxQueue[cnt].delay) // sound was started
_resMan->resClose(_fxList[_fxQueue[cnt].id].sampleId);
if (cnt != _endOfQueue-1)
_fxQueue[cnt] = _fxQueue[_endOfQueue-1];
_endOfQueue--;
return ;
}
debug(8, "fnStopFx: id not found in queue");
}
bool Sound::amISpeaking(void) {
_waveVolPos++;
return _waveVolume[_waveVolPos - 1];
}
bool Sound::speechFinished(void) {
return !_speechHandle.isActive();
}
void Sound::newScreen(uint32 screen) {
if (_currentCowFile != SwordEngine::_systemVars.currentCD) {
if (_currentCowFile)
closeCowSystem();
initCowSystem();
}
}
void Sound::quitScreen(void) {
// stop all running SFX
while (_endOfQueue)
fnStopFx(_fxQueue[0].id);
}
void Sound::playSample(QueueElement *elem) {
uint8 *sampleData = (uint8*)_resMan->fetchRes(_fxList[elem->id].sampleId);
for (uint16 cnt = 0; cnt < MAX_ROOMS_PER_FX; cnt++) {
if (_fxList[elem->id].roomVolList[cnt].roomNo) {
if ((_fxList[elem->id].roomVolList[cnt].roomNo == (int)Logic::_scriptVars[SCREEN]) ||
(_fxList[elem->id].roomVolList[cnt].roomNo == -1)) {
uint8 volL = (_fxList[elem->id].roomVolList[cnt].leftVol * 10 * _sfxVolL) / 255;
uint8 volR = (_fxList[elem->id].roomVolList[cnt].rightVol * 10 * _sfxVolR) / 255;
int8 pan = (volR - volL) / 2;
uint8 volume = (volR + volL) / 2;
uint32 size = READ_LE_UINT32(sampleData + 0x28);
uint8 flags;
if (READ_LE_UINT16(sampleData + 0x22) == 16)
flags = SoundMixer::FLAG_16BITS | SoundMixer::FLAG_LITTLE_ENDIAN;
else
flags = SoundMixer::FLAG_UNSIGNED;
if (READ_LE_UINT16(sampleData + 0x16) == 2)
flags |= SoundMixer::FLAG_STEREO;
_mixer->playRaw(&elem->handle, sampleData + 0x2C, size, 11025, flags, elem->id, volume, pan);
}
} else
break;
}
}
bool Sound::startSpeech(uint16 roomNo, uint16 localNo) {
if (_cowHeader == NULL) {
warning("Sound::startSpeech: COW file isn't open!");
return false;
}
uint32 locIndex = _cowHeader[roomNo] >> 2;
uint32 sampleSize = _cowHeader[locIndex + (localNo * 2)];
uint32 index = _cowHeader[locIndex + (localNo * 2) - 1];
debug(6, "startSpeech(%d, %d): locIndex %d, sampleSize %d, index %d", roomNo, localNo, locIndex, sampleSize, index);
if (sampleSize) {
uint32 size;
int16 *data = uncompressSpeech(index + _cowHeaderSize, sampleSize, &size);
uint8 speechVol = (_speechVolR + _speechVolL) / 2;
int8 speechPan = (_speechVolR - _speechVolL) / 2;
if (data)
_mixer->playRaw(&_speechHandle, data, size, 11025, SPEECH_FLAGS, SOUND_SPEECH_ID, speechVol, speechPan);
return true;
} else
return false;
}
int16 *Sound::uncompressSpeech(uint32 index, uint32 cSize, uint32 *size) {
uint8 *fBuf = (uint8*)malloc(cSize);
_cowFile.seek(index);
_cowFile.read(fBuf, cSize);
uint32 headerPos = 0;
while ((READ_BE_UINT32(fBuf + headerPos) != 'data') && (headerPos < 100))
headerPos++;
if (headerPos < 100) {
uint32 resSize = READ_LE_UINT32(fBuf + headerPos + 4) >> 1;
int16 *srcData = (int16*)(fBuf + headerPos + 8);
int16 *dstData = (int16*)malloc(resSize * 2);
uint32 srcPos = 0;
int16 *dstPos = dstData;
cSize = (cSize - (headerPos + 8)) / 2;
while (srcPos < cSize) {
int16 length = (int16)READ_LE_UINT16(srcData + srcPos);
srcPos++;
if (length < 0) {
length = -length;
for (uint16 cnt = 0; cnt < (uint16)length; cnt++)
*dstPos++ = srcData[srcPos];
srcPos++;
} else {
memcpy(dstPos, srcData + srcPos, length * 2);
dstPos += length;
srcPos += length;
}
}
free(fBuf);
*size = resSize * 2;
calcWaveVolume(dstData, resSize);
return dstData;
} else {
free(fBuf);
warning("Sound::uncompressSpeech(): DATA tag not found in wave header");
*size = 0;
return NULL;
}
}
void Sound::calcWaveVolume(int16 *data, uint32 length) {
int16 *blkPos = data + 918;
uint32 cnt;
for (cnt = 0; cnt < WAVE_VOL_TAB_LENGTH; cnt++)
_waveVolume[cnt] = false;
_waveVolPos = 0;
for (uint32 blkCnt = 1; blkCnt < length / 918; blkCnt++) {
if (blkCnt >= WAVE_VOL_TAB_LENGTH) {
warning("Wave vol tab too small.");
return;
}
int32 average = 0;
for (cnt = 0; cnt < 918; cnt++)
average += blkPos[cnt];
average /= 918;
uint32 diff = 0;
for (cnt = 0; cnt < 918; cnt++) {
int16 smpDiff = *blkPos - average;
diff += (uint32)ABS(smpDiff);
blkPos++;
}
if (diff > WAVE_VOL_THRESHOLD)
_waveVolume[blkCnt - 1] = true;
}
}
void Sound::stopSpeech(void) {
_mixer->stopID(SOUND_SPEECH_ID);
}
void Sound::initCowSystem(void) {
char cowName[25];
/* look for speech1/2.clu in the data dir
and speech/speech.clu (running from cd or using cd layout)
*/
sprintf(cowName, "SPEECH%d.CLU", SwordEngine::_systemVars.currentCD);
_cowFile.open(cowName);
if (!_cowFile.isOpen()) {
_cowFile.open("speech.clu");
}
if (_cowFile.isOpen()) {
_cowHeaderSize = _cowFile.readUint32LE();
_cowHeader = (uint32*)malloc(_cowHeaderSize);
if (_cowHeaderSize & 3)
error("Unexpected cow header size %d", _cowHeaderSize);
for (uint32 cnt = 0; cnt < (_cowHeaderSize / 4) - 1; cnt++)
_cowHeader[cnt] = _cowFile.readUint32LE();
_currentCowFile = SwordEngine::_systemVars.currentCD;
} else
warning("Sound::initCowSystem: Can't open SPEECH%d.CLU", SwordEngine::_systemVars.currentCD);
}
void Sound::closeCowSystem(void) {
if (_cowFile.isOpen())
_cowFile.close();
if (_cowHeader)
free(_cowHeader);
_cowHeader = NULL;
_currentCowFile = 0;
}
} // End of namespace Sword1
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