void PreloadScene::update(float dt)
{
if(!m_dataStartLoading)
PreloadData();
if(m_dataFinishLoading)
{
auto director = Director::getInstance();
auto menu = MenuScene::createScene();
director->replaceScene(menu);
}
}
bool CXZip::Load( FILE* handle, int nOffset, int nSize, bool bPreload ) // Load a pack file into this instance. Returns true on success.
{
Unload();
m_bByteSwapped = false;
m_hZip = handle;
m_nOffset = nOffset;
m_nSize = nSize;
// Hacky, clean up:
if( m_hZip && !m_pRead )
{
InstallAlternateIO( defaultRead, (int)m_hZip );
}
if( m_hZip == NULL && m_pRead == NULL )
{
return false;
}
// Read the header:
m_pRead( &m_Header, 0, -1, sizeof(m_Header), m_hUser );
// Validate the Magic number and at the same time determine if I am reading a regular or swappped xZip file:
switch( m_Swap.SourceIsNativeEndian<int>( m_Header.Magic, xZipHeader_t::MAGIC ) )
{
// Does the magic match exactly?
case 1:
m_Swap.ActivateByteSwapping( false );
m_bByteSwapped = false;
break;
// Does the magic match, but is swapped?
case 0:
m_bByteSwapped = true;
m_Swap.ActivateByteSwapping( true ); // We must be reading the opposite endianness.
m_Swap.SwapFieldsToTargetEndian<xZipHeader_t>( &m_Header );
break;
default:
assert( 0 );
// Fail gently in release:
// The magic doesn't match in any respect:
case -1:
{
printf("Invalid xZip file\n");
if( m_hZip )
{
fclose( m_hZip );
m_hZip = NULL;
}
return false;
}
}
// Validate the archive version:
if( m_Header.Version != xZipHeader_t::VERSION )
{
// Backward compatable support for version 1
Msg("Incorrect xZip version found %u - expected %u\n", m_Header.Version, xZipHeader_t::VERSION );
if( m_hZip )
{
fclose( m_hZip );
m_hZip = NULL;
}
m_Header.Magic = xZipHeader_t::FREE;
return false;
}
// Read the directory:
{
MEM_ALLOC_CREDIT();
m_pDirectory = (xZipDirectoryEntry_t*)malloc( sizeof(xZipDirectoryEntry_t) * m_Header.DirectoryEntries );
m_pRead( m_pDirectory, m_Header.HeaderLength, -1, sizeof( xZipDirectoryEntry_t ) * m_Header.DirectoryEntries, m_hUser );
// Swap the directory entries if nessecary
if( m_bByteSwapped )
{
for( unsigned nDirectoryEntry = 0; nDirectoryEntry < m_Header.DirectoryEntries; nDirectoryEntry++ )
{
m_Swap.SwapFieldsToTargetEndian<xZipDirectoryEntry_t>( &( m_pDirectory[nDirectoryEntry] ) );
}
}
m_nPreloadStart = m_Header.HeaderLength + ( sizeof( xZipDirectoryEntry_t ) * m_Header.DirectoryEntries );
}
// Preload the preload chunk if desired:
if( bPreload )
{
PreloadData();
}
return true;
}
