static short GetShortSample(Sound *s, long i, int c) {
short res = 0;
if (i >= Snack_GetLength(s) || s->storeType == SOUND_IN_CHANNEL)
return 0;
i = i * Snack_GetNumChannels(s) + c;
if (s->storeType == SOUND_IN_MEMORY) {
res = (short) FSAMPLE(s, i);
} else {
if (s->linkInfo.linkCh == NULL) {
OpenLinkedFile(s, &s->linkInfo);
}
res = (short) GetSample(&s->linkInfo, i);
}
if (Snack_GetSampleEncoding(s) == LIN8) {
res <<= 8;
}
return res;
}
void ID3_Tag::RenderToHandle( void )
{
uchar *buffer;
luint size;
if ( fileHandle )
{
if ( size = Size() )
{
#ifdef _DEBUG
// ASSERT( size < MAX_ALLOC ); // PL
#endif
if ( buffer = new uchar[ size ] )
{
if ( size = Render ( buffer ) )
{
// if the new tag fits perfectly within the old
// and the old one actually existed (ie this isn't the first tag
// this file has had)
if ( ( m_nOldTagSize == 0 && m_nFileSize == 0 ) || ( size == m_nOldTagSize && size != 0 ) )
{
fseek ( fileHandle, 0, SEEK_SET );
fwrite ( buffer, 1, size, fileHandle );
m_nOldTagSize = size;
}
else
{
// else we gotta make a temp file,
// copy the tag into it, copy the
// rest of the old file after the tag,
// delete the old file, rename this
// new file to the old file's name
// and update the fileHandle
FILE *tempOut;
if ( strlen ( m_strTempName ) > 0 )
{
if ( tempOut = fopen ( m_strTempName, "wb" ) )
{
uchar *buffer2;
fwrite ( buffer, 1, size, tempOut );
fseek ( fileHandle, m_nOldTagSize, SEEK_SET );
if ( buffer2 = new uchar [ BUFF_SIZE ] )
{
int i;
while ( ! feof ( fileHandle ) )
{
i = fread ( buffer2, 1, BUFF_SIZE, fileHandle );
fwrite ( buffer2, 1, i, tempOut );
}
delete[] buffer2;
}
fclose ( tempOut );
fclose ( fileHandle );
// DeleteFileA( m_strFileName );
// MoveFileA( m_strTempName, m_strFileName );
OpenLinkedFile( LINK_READONLY );
m_nOldTagSize = size;
}
}
}
}
delete[] buffer;
}
else
ID3_THROW ( ID3E_NoMemory );
}
}
else
ID3_THROW ( ID3E_NoData );
return;
}
