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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "ultima/ultima8/misc/debugger.h"
#include "ultima/ultima8/misc/common_types.h"
#include "ultima/ultima8/audio/speech_flex.h"
#include "ultima/ultima8/audio/audio_sample.h"
namespace Ultima {
namespace Ultima8 {
SpeechFlex::SpeechFlex(Common::SeekableReadStream *rs) : SoundFlex(rs) {
uint32 size = getRawSize(0);
const uint8 *buf = getRawObject(0);
const char *cbuf = reinterpret_cast<const char *>(buf);
// Note: stream holds multiple null-terminated strings.
unsigned int off = 0;
while (off < size) {
unsigned int slen = 0;
while (off + slen < size && cbuf[off + slen])
slen++;
Std::string text(cbuf + off, slen);
text.replace('\t', ' ');
off += slen + 1;
Std::string::size_type pos1 = text.findFirstNotOf(' ');
if (pos1 == Std::string::npos) {
text = "";
}
else {
Std::string::size_type pos2 = text.findLastNotOf(' ');
text = text.substr(pos1, pos2 - pos1 + 1);
}
debug(6, "Found string: \"%s\"", text.c_str());
_phrases.push_back(text);
}
delete [] buf;
}
SpeechFlex::~SpeechFlex(void) {
}
int SpeechFlex::getIndexForPhrase(const Std::string &phrase,
uint32 start, uint32 &end) const {
Std::vector<Std::string>::const_iterator it;
int i = 1;
Std::string text = phrase.substr(start);
text.replace('\t', ' ');
Std::string::size_type pos1 = text.findFirstNotOf(' ');
if (pos1 == Std::string::npos)
return 0;
Std::string::size_type pos2 = text.findLastNotOf(' ');
text = text.substr(pos1, pos2 - pos1 + 1);
debug(6, "Looking for string: \"%s\"", text.c_str());
for (it = _phrases.begin(); it != _phrases.end(); ++it) {
if (!it->empty() && text.hasPrefixIgnoreCase(*it)) {
debug(6, "Found: %d", i);
end = (*it).size() + start + pos1;
if (end >= start + pos2)
end = phrase.size();
return i;
}
i++;
}
debug(6, "Not found");
return 0;
}
uint32 SpeechFlex::getSpeechLength(const Std::string &phrase) {
uint32 start = 0, end = 0;
uint32 length = 0;
while (end < phrase.size()) {
start = end;
int index = getIndexForPhrase(phrase, start, end);
if (!index) break;
const AudioSample *sample = getSample(index);
if (!sample) break;
uint32 samples = sample->getLength();
uint32 rate = sample->getRate();
bool stereo = sample->isStereo();
if (stereo) rate *= 2;
length += (samples * 1000) / rate;
}
return length;
}
} // End of namespace Ultima8
} // End of namespace Ultima
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