/// Read the summary of this alias block from disk. Since the audio data
/// is elsewhere, this consists of reading the entire summary file.
///
/// @param *data The buffer where the summary data will be stored. It must
/// be at least mSummaryInfo.totalSummaryBytes long.
bool ODPCMAliasBlockFile::ReadSummary(void *data)
{
mFileNameMutex.Lock();
wxFFile summaryFile(mFileName.GetFullPath(), wxT("rb"));
if( !summaryFile.IsOpened() ){
// new model; we need to return valid data
memset(data,0,(size_t)mSummaryInfo.totalSummaryBytes);
// we silence the logging for this operation in this object
// after first occurrence of error; it's already reported and
// spewing at the user will complicate the user's ability to
// deal
mSilentLog=TRUE;
mFileNameMutex.Unlock();
return true;
}else mSilentLog=FALSE; // worked properly, any future error is new
int read = summaryFile.Read(data, (size_t)mSummaryInfo.totalSummaryBytes);
FixSummary(data);
mFileNameMutex.Unlock();
return (read == mSummaryInfo.totalSummaryBytes);
}
/// Read the summary of this alias block from disk. Since the audio data
/// is elsewhere, this consists of reading the entire summary file.
/// Fill with zeroes and return false if data are unavailable for any reason.
///
/// @param *data The buffer where the summary data will be stored. It must
/// be at least mSummaryInfo.totalSummaryBytes long.
bool ODPCMAliasBlockFile::ReadSummary(ArrayOf<char> &data)
{
data.reinit( mSummaryInfo.totalSummaryBytes );
ODLocker locker{ &mFileNameMutex };
wxFFile summaryFile(mFileName.GetFullPath(), wxT("rb"));
if( !summaryFile.IsOpened() ) {
// NEW model; we need to return valid data
memset(data.get(), 0, mSummaryInfo.totalSummaryBytes);
// we silence the logging for this operation in this object
// after first occurrence of error; it's already reported and
// spewing at the user will complicate the user's ability to
// deal
mSilentLog = TRUE;
return false;
}
else
mSilentLog = FALSE; // worked properly, any future error is NEW
auto read = summaryFile.Read(data.get(), mSummaryInfo.totalSummaryBytes);
if (read != mSummaryInfo.totalSummaryBytes) {
memset(data.get(), 0, mSummaryInfo.totalSummaryBytes);
return false;
}
FixSummary(data.get());
return true;
}
/// Read the summary section of the disk file.
///
/// @param *data The buffer to write the data to. It must be at least
/// mSummaryinfo.totalSummaryBytes long.
bool SimpleBlockFile::ReadSummary(void *data)
{
if (mCache.active)
{
//wxLogDebug("SimpleBlockFile::ReadSummary(): Summary is already in cache.");
memcpy(data, mCache.summaryData, (size_t)mSummaryInfo.totalSummaryBytes);
return true;
} else
{
//wxLogDebug("SimpleBlockFile::ReadSummary(): Reading summary from disk.");
wxFFile file(mFileName.GetFullPath(), wxT("rb"));
{
Maybe<wxLogNull> silence{};
if (mSilentLog)
silence.create();
if (!file.IsOpened()){
memset(data, 0, (size_t)mSummaryInfo.totalSummaryBytes);
mSilentLog = TRUE;
return true;
}
}
mSilentLog=FALSE;
// The offset is just past the au header
if( !file.Seek(sizeof(auHeader)) )
return false;
int read = (int)file.Read(data, (size_t)mSummaryInfo.totalSummaryBytes);
FixSummary(data);
return (read == mSummaryInfo.totalSummaryBytes);
}
}
/// Read the summary section of the disk file.
///
/// @param *data The buffer to write the data to. It must be at least
/// mSummaryinfo.totalSummaryBytes long.
bool SimpleBlockFile::ReadSummary(void *data)
{
if (mCache.active)
{
DEBUG_OUTPUT("ReadSummary: Summary is already in cache");
memcpy(data, mCache.summaryData, (size_t)mSummaryInfo.totalSummaryBytes);
return true;
} else
{
DEBUG_OUTPUT("ReadSummary: Reading summary from disk");
wxFFile file(mFileName.GetFullPath(), wxT("rb"));
wxLogNull *silence=0;
if(mSilentLog)silence= new wxLogNull();
if(!file.IsOpened() ){
memset(data,0,(size_t)mSummaryInfo.totalSummaryBytes);
if(silence) delete silence;
mSilentLog=TRUE;
return true;
}
if(silence) delete silence;
mSilentLog=FALSE;
// The offset is just past the au header
if( !file.Seek(sizeof(auHeader)) )
return false;
int read = (int)file.Read(data, (size_t)mSummaryInfo.totalSummaryBytes);
FixSummary(data);
return (read == mSummaryInfo.totalSummaryBytes);
}
}
