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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.
*
* $URL$
* $Id$
*
* sound functionality
*/
#include "tinsel/sound.h"
#include "tinsel/dw.h"
#include "tinsel/config.h"
#include "tinsel/music.h"
#include "tinsel/strres.h"
#include "tinsel/tinsel.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/system.h"
#include "sound/mixer.h"
#include "sound/audiocd.h"
namespace Tinsel {
//--------------------------- General data ----------------------------------
SoundManager::SoundManager(TinselEngine *vm) :
//_vm(vm), // TODO: Enable this once global _vm var is gone
_sampleIndex(0), _sampleIndexLen(0) {
}
SoundManager::~SoundManager() {
free(_sampleIndex);
}
/**
* Plays the specified sample through the sound driver.
* @param id Identifier of sample to be played
* @param type type of sound (voice or sfx)
* @param handle sound handle
*/
bool SoundManager::playSample(int id, Audio::Mixer::SoundType type, Audio::SoundHandle *handle) {
// Floppy version has no sample file
if (_vm->getFeatures() & GF_FLOPPY)
return false;
// no sample driver?
if (!_vm->_mixer->isReady())
return false;
// stop any currently playing sample
_vm->_mixer->stopHandle(_handle);
// make sure id is in range
assert(id > 0 && id < _sampleIndexLen);
// get file offset for this sample
int32 dwSampleIndex = _sampleIndex[id];
// move to correct position in the sample file
_sampleStream.seek(dwSampleIndex);
if (_sampleStream.ioFailed() || _sampleStream.pos() != dwSampleIndex)
error("File %s is corrupt", SAMPLE_FILE);
// read the length of the sample
uint32 sampleLen = _sampleStream.readUint32LE();
if (_sampleStream.ioFailed())
error("File %s is corrupt", SAMPLE_FILE);
// allocate a buffer
void *sampleBuf = malloc(sampleLen);
assert(sampleBuf);
// read all of the sample
if (_sampleStream.read(sampleBuf, sampleLen) != sampleLen)
error("File %s is corrupt", SAMPLE_FILE);
// FIXME: Should set this in a different place ;)
_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, volSound);
//_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, soundVolumeMusic);
_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, volVoice);
// play it
_vm->_mixer->playRaw(type, &_handle, sampleBuf, sampleLen, 22050,
Audio::Mixer::FLAG_AUTOFREE | Audio::Mixer::FLAG_UNSIGNED);
if (handle)
*handle = _handle;
return true;
}
/**
* Returns TRUE if there is a sample for the specified sample identifier.
* @param id Identifier of sample to be checked
*/
bool SoundManager::sampleExists(int id) {
if (_vm->_mixer->isReady()) {
// make sure id is in range
if (id > 0 && id < _sampleIndexLen) {
// check for a sample index
if (_sampleIndex[id])
return true;
}
}
// no sample driver or no sample
return false;
}
/**
* Returns true if a sample is currently playing.
*/
bool SoundManager::sampleIsPlaying(void) {
return _vm->_mixer->isSoundHandleActive(_handle);
}
/**
* Stops any currently playing sample.
*/
void SoundManager::stopAllSamples(void) {
// stop currently playing sample
_vm->_mixer->stopHandle(_handle);
}
/**
* Opens and inits all sound sample files.
*/
void SoundManager::openSampleFiles(void) {
// Floppy and demo versions have no sample files
if (_vm->getFeatures() & GF_FLOPPY || _vm->getFeatures() & GF_DEMO)
return;
Common::File f;
if (_sampleIndex)
// already allocated
return;
// open sample index file in binary mode
if (f.open(SAMPLE_INDEX)) {
// get length of index file
f.seek(0, SEEK_END); // move to end of file
_sampleIndexLen = f.pos(); // get file pointer
f.seek(0, SEEK_SET); // back to beginning
if (_sampleIndex == NULL) {
// allocate a buffer for the indices
_sampleIndex = (int32 *)malloc(_sampleIndexLen);
// make sure memory allocated
if (_sampleIndex == NULL) {
// disable samples if cannot alloc buffer for indices
// TODO: Disabled sound if we can't load the sample index?
return;
}
}
// load data
if (f.read(_sampleIndex, _sampleIndexLen) != (uint32)_sampleIndexLen)
// file must be corrupt if we get to here
error("File %s is corrupt", SAMPLE_FILE);
#ifdef SCUMM_BIG_ENDIAN
// Convert all ids from LE to native format
for (uint i = 0; i < _sampleIndexLen / sizeof(uint32); ++i) {
_sampleIndex[i] = READ_LE_UINT32(_sampleIndex + i);
}
#endif
// close the file
f.close();
// convert file size to size in DWORDs
_sampleIndexLen /= sizeof(uint32);
} else
error("Cannot find file %s", SAMPLE_INDEX);
// open sample file in binary mode
if (!_sampleStream.open(SAMPLE_FILE))
error("Cannot find file %s", SAMPLE_FILE);
/*
// gen length of the largest sample
sampleBuffer.size = _sampleStream.readUint32LE();
if (_sampleStream.ioFailed())
error("File %s is corrupt", SAMPLE_FILE);
*/
}
} // end of namespace Tinsel
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