122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "ultima/ultima8/misc/debugger.h"
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#include "ultima/ultima8/misc/common_types.h"
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#include "ultima/ultima8/audio/speech_flex.h"
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#include "ultima/ultima8/audio/audio_sample.h"
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namespace Ultima {
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namespace Ultima8 {
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SpeechFlex::SpeechFlex(Common::SeekableReadStream *rs) : SoundFlex(rs) {
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uint32 size = getRawSize(0);
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const uint8 *buf = getRawObject(0);
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const char *cbuf = reinterpret_cast<const char *>(buf);
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// Note: stream holds multiple null-terminated strings.
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unsigned int off = 0;
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while (off < size) {
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unsigned int slen = 0;
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while (off + slen < size && cbuf[off + slen])
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slen++;
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Std::string text(cbuf + off, slen);
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text.replace('\t', ' ');
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off += slen + 1;
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Std::string::size_type pos1 = text.findFirstNotOf(' ');
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if (pos1 == Std::string::npos) {
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text = "";
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}
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else {
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Std::string::size_type pos2 = text.findLastNotOf(' ');
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text = text.substr(pos1, pos2 - pos1 + 1);
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}
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debug(6, "Found string: \"%s\"", text.c_str());
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_phrases.push_back(text);
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}
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delete [] buf;
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}
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SpeechFlex::~SpeechFlex(void) {
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}
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int SpeechFlex::getIndexForPhrase(const Std::string &phrase,
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uint32 start, uint32 &end) const {
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int i = 1;
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Std::string text = phrase.substr(start);
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text.replace('\t', ' ');
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Std::string::size_type pos1 = text.findFirstNotOf(' ');
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if (pos1 == Std::string::npos)
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return 0;
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Std::string::size_type pos2 = text.findLastNotOf(' ');
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text = text.substr(pos1, pos2 - pos1 + 1);
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debug(6, "Looking for string: \"%s\"", text.c_str());
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for (const auto &p : _phrases) {
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if (!p.empty() && text.hasPrefixIgnoreCase(p)) {
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debug(6, "Found: %d", i);
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end = p.size() + start + pos1;
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if (end >= start + pos2)
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end = phrase.size();
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return i;
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}
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i++;
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}
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debug(6, "Not found");
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return 0;
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}
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uint32 SpeechFlex::getSpeechLength(const Std::string &phrase) {
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uint32 start = 0, end = 0;
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uint32 length = 0;
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while (end < phrase.size()) {
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start = end;
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int index = getIndexForPhrase(phrase, start, end);
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if (!index) break;
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const AudioSample *sample = getSample(index);
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if (!sample) break;
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uint32 samples = sample->getLength();
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uint32 rate = sample->getRate();
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bool stereo = sample->isStereo();
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if (stereo) rate *= 2;
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length += (samples * 1000) / rate;
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}
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return length;
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}
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} // End of namespace Ultima8
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} // End of namespace Ultima
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