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Csaba Halasz: C++-ify ATCVoice WriteMessage

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ehofman 2009-10-26 13:31:41 +00:00 committed by Tim Moore
parent 11d15b4513
commit ad020f5fb5
1 changed files with 59 additions and 79 deletions
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138
src/ATCDCL/ATCVoice.cxx
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@ -28,10 +28,8 @@
#include <stdlib.h>
#include <ctype.h>
#include <fstream>
#include <list>
#include <vector>
#include <boost/shared_array.hpp>
#include <algorithm>
#include <simgear/sound/soundmgr_openal.hxx>
#include <simgear/misc/sg_path.hxx>
@ -41,12 +39,6 @@
#include <Main/globals.hxx>
#include <stdio.h>
#ifdef _MSC_VER
#define strtok_r strtok_s
#endif
using namespace std;
FGATCVoice::FGATCVoice() {
@ -129,9 +121,6 @@ bool FGATCVoice::LoadVoice(const string& voice) {
}
typedef list < string > tokenList_type;
typedef tokenList_type::iterator tokenList_iterator;
// Given a desired message, return a string containing the
// sound-sample data
void* FGATCVoice::WriteMessage(const string& message, size_t* len) {
@ -140,83 +129,74 @@ void* FGATCVoice::WriteMessage(const string& message, size_t* len) {
// First - parse the message into a list of tokens.
// Sort the tokens into those we understand and those we don't.
// Add all the raw lengths of the token sound data, allocate enough space, and fill it with the rqd data.
tokenList_type tokenList;
tokenList_iterator tokenListItr;
// TODO - at the moment we're effectively taking 3 passes through the data.
// There is no need for this - 2 should be sufficient - we can probably ditch the tokenList.
char* msg = (char *)message.c_str();
char* token;
int numWords = 0;
vector<char> sound;
const char delimiters[] = " \t.,;:\"\n";
char* context;
token = strtok_r(msg, delimiters, &context);
while(token != NULL) {
for (char *t = token; *t; t++) {
*t = tolower(*t); // canonicalize the case, to
if (*t == '-') *t = '_'; // match what's in the index
}
tokenList.push_back(token);
++numWords;
SG_LOG(SG_ATC, SG_DEBUG, "voice synth: token: '"
<< token << "'");
token = strtok_r(NULL, delimiters, &context);
}
vector<WordData> wdptr;
wdptr.reserve(numWords);
unsigned int cumLength = 0;
tokenListItr = tokenList.begin();
while(tokenListItr != tokenList.end()) {
if(wordMap.find(*tokenListItr) == wordMap.end()) {
// Oh dear - the token isn't in the sound file
SG_LOG(SG_ATC, SG_DEBUG, "voice synth: word '"
<< *tokenListItr << "' not found");
string::size_type token_start = message.find_first_not_of(delimiters);
while(token_start != string::npos) {
string::size_type token_end = message.find_first_of(delimiters, token_start);
string token;
if (token_end == string::npos) {
token = message.substr(token_start);
token_start = string::npos;
} else {
wdptr.push_back(wordMap[*tokenListItr]);
cumLength += wdptr.back().length;
token = message.substr(token_start, token_end - token_start);
token_start = message.find_first_not_of(delimiters, token_end);
}
for(string::iterator t = token.begin(); t != token.end(); t++) {
// canonicalize the token, to match what's in the index
*t = (*t == '-') ? '_' : tolower(*t);
}
SG_LOG(SG_ATC, SG_DEBUG, "voice synth: token: '"
<< token << "'");
atc_word_map_const_iterator wordIt = wordMap.find(token);
if(wordIt == wordMap.end()) {
// Oh dear - the token isn't in the sound file
SG_LOG(SG_ATC, SG_ALERT, "voice synth: word '"
<< token << "' not found");
} else {
const WordData& word = wordIt->second;
/*
* Sanity check for corrupt/mismatched sound data input - avoids a seg fault
* (As long as the calling function checks the return value!!)
* This check should be left in even when the default Flightgear files are known
* to be OK since it checks for mis-indexing of voice files by 3rd party developers.
*/
if((word.offset + word.length) > rawDataSize) {
SG_LOG(SG_ATC, SG_ALERT, "ERROR - mismatch between ATC .wav and .vce file in ATCVoice.cxx\n");
SG_LOG(SG_ATC, SG_ALERT, "Offset + length: " << word.offset + word.length
<< " exceeds rawdata size: " << rawDataSize << endl);
*len = 0;
return 0;
}
sound.insert(sound.end(), rawSoundData + word.offset, rawSoundData + word.offset + word.length);
}
++tokenListItr;
}
const size_t word = wdptr.size();
// Check for no tokens found else slScheduler can be crashed
if(!word) {
*len = sound.size();
if (*len == 0) {
return 0;
}
char* data = (char*)malloc(*len);
if (data == 0) {
SG_LOG(SG_ATC, SG_ALERT, "ERROR - could not allocate " << *len << " bytes of memory for ATIS sound\n");
*len = 0;
return NULL;
}
boost::shared_array<char> tmpbuf(new char[cumLength]);
unsigned int bufpos = 0;
for(int i=0; i<word; ++i) {
/*
* Sanity check for corrupt/mismatched sound data input - avoids a seg fault
* (As long as the calling function checks the return value!!)
* This check should be left in even when the default Flightgear files are known
* to be OK since it checks for mis-indexing of voice files by 3rd party developers.
*/
if((wdptr[i].offset + wdptr[i].length) > rawDataSize) {
SG_LOG(SG_ATC, SG_ALERT, "ERROR - mismatch between ATC .wav and .vce file in ATCVoice.cxx\n");
SG_LOG(SG_ATC, SG_ALERT, "Offset + length: " << wdptr[i].offset + wdptr[i].length
<< " exceeds rawdata size: " << rawDataSize << endl);
*len = 0;
return NULL;
}
memcpy(tmpbuf.get() + bufpos, rawSoundData + wdptr[i].offset, wdptr[i].length);
bufpos += wdptr[i].length;
return 0;
}
// tmpbuf now contains the message starting at the beginning - but we want it to start at a random position.
unsigned int offsetIn = (int)(cumLength * sg_random());
if(offsetIn > cumLength) offsetIn = cumLength;
unsigned char *data = (unsigned char *)calloc(1, cumLength);
*len = cumLength;
#if 0
memcpy(data, tmpbuf.get() + offsetIn, cumLength - offsetIn);
memcpy(data + cumLength - offsetIn, tmpbuf.get(), offsetIn);
#endif
// randomize start position
unsigned int offsetIn = (unsigned int)(*len * sg_random());
if (offsetIn > 0 && offsetIn < *len) {
copy(sound.begin() + offsetIn, sound.end(), data);
copy(sound.begin(), sound.begin() + offsetIn, data + *len - offsetIn);
} else {
copy(sound.begin(), sound.end(), data);
}
return data;
}