/**
* Called to load a resource file for a different language
* @param newLang The new language
*/
void ChangeLanguage(LANGUAGE newLang) {
TinselFile f;
uint32 textLen = 0; // length of buffer
textLanguage = newLang;
sampleLanguage = newLang;
// free the previous buffer
free(textBuffer);
textBuffer = NULL;
// Try and open the specified language file. If it fails, and the language
// isn't English, try falling back on opening 'english.txt' - some foreign
// language versions reused it rather than their proper filename
if (!f.open(_vm->getTextFile(newLang))) {
if ((newLang == TXT_ENGLISH) || !f.open(_vm->getTextFile(TXT_ENGLISH))) {
char buf[50];
sprintf(buf, CANNOT_FIND_FILE, _vm->getTextFile(newLang));
GUI::MessageDialog dialog(buf, "OK");
dialog.runModal();
error(CANNOT_FIND_FILE, _vm->getTextFile(newLang));
}
}
// Check whether the file is compressed or not - for compressed files the
// first long is the filelength and for uncompressed files it is the chunk
// identifier
textLen = f.readUint32();
if (f.eos() || f.err())
error(FILE_IS_CORRUPT, _vm->getTextFile(newLang));
if (textLen == CHUNK_STRING || textLen == CHUNK_MBSTRING) {
// the file is uncompressed
bMultiByte = (textLen == CHUNK_MBSTRING);
// get length of uncompressed file
textLen = f.size();
f.seek(0, SEEK_SET); // Set to beginning of file
if (textBuffer == NULL) {
// allocate a text buffer for the strings
textBuffer = (uint8 *)malloc(textLen);
// make sure memory allocated
assert(textBuffer);
}
// load data
if (f.read(textBuffer, textLen) != textLen)
// file must be corrupt if we get to here
error(FILE_IS_CORRUPT, _vm->getTextFile(newLang));
// close the file
f.close();
} else { // the file must be compressed
error("Compression handling has been removed");
}
}
void DoCdChange() {
if (g_bChangingCD && (g_system->getMillis() > (g_lastTime + 1000))) {
g_lastTime = g_system->getMillis();
_vm->_sound->closeSampleStream();
// Use the filesize of the sample file to determine, for Discworld 2, which CD it is
if (TinselV2) {
TinselFile f;
if (!f.open(_vm->getSampleFile(g_sampleLanguage)))
// No CD present
return;
char sampleCdNumber = (f.size() >= (200 * 1024 * 1024)) ? '1' : '2';
f.close();
if (g_currentCD != sampleCdNumber)
return;
}
_vm->_sound->openSampleFiles();
ChangeLanguage(TextLanguage());
g_bChangingCD = false;
}
}
/**
* Opens and inits all sound sample files.
*/
void SoundManager::openSampleFiles() {
// Floppy and demo versions have no sample files, except for the Discworld 2 demo
if (_vm->getFeatures() & GF_FLOPPY || (IsDemo && !TinselV2))
return;
TinselFile f;
if (_sampleIndex)
// already allocated
return;
// open sample index file in binary mode
if (f.open(_vm->getSampleIndex(sampleLanguage))) {
// 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 = (uint32 *)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_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));
// close the file
f.close();
// convert file size to size in DWORDs
_sampleIndexLen /= sizeof(uint32);
#ifdef SCUMM_BIG_ENDIAN
// Convert all ids from LE to native format
for (int i = 0; i < _sampleIndexLen; ++i) {
_sampleIndex[i] = SWAP_BYTES_32(_sampleIndex[i]);
}
#endif
// Detect format of soundfile by looking at 1st sample-index
switch (TO_BE_32(_sampleIndex[0])) {
case MKID_BE('MP3 '):
debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected MP3 sound-data");
_soundMode = kMP3Mode;
break;
case MKID_BE('OGG '):
debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected OGG sound-data");
_soundMode = kVorbisMode;
break;
case MKID_BE('FLAC'):
debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected FLAC sound-data");
_soundMode = kFLACMode;
break;
default:
debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected original sound-data");
break;
}
// Normally the 1st sample-index points to nothing at all
_sampleIndex[0] = 0;
} else {
char buf[50];
sprintf(buf, CANNOT_FIND_FILE, _vm->getSampleIndex(sampleLanguage));
GUI::MessageDialog dialog(buf, "OK");
dialog.runModal();
error(CANNOT_FIND_FILE, _vm->getSampleIndex(sampleLanguage));
}
// open sample file in binary mode
if (!_sampleStream.open(_vm->getSampleFile(sampleLanguage))) {
char buf[50];
sprintf(buf, CANNOT_FIND_FILE, _vm->getSampleFile(sampleLanguage));
GUI::MessageDialog dialog(buf, "OK");
dialog.runModal();
error(CANNOT_FIND_FILE, _vm->getSampleFile(sampleLanguage));
}
/*
// gen length of the largest sample
sampleBuffer.size = _sampleStream.readUint32LE();
if (_sampleStream.eos() || _sampleStream.err())
error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));
*/
}