Function FileRead

trinity/Font/Tr2FontManager.cpp:733–765

}

static unsigned long FileRead( FT_Stream stream, unsigned long offset, unsigned char* buffer, unsigned long count )
{
	IResFile* fp = (IResFile*)stream->descriptor.pointer;

	if( count == 0 )
	{
		ssize_t ret = fp->Seek( offset, ICcpStream::SO_BEGIN );
		if( ret == -1 )
		{
			return -1;
		}
		return 0;
	}
	if( offset != fp->GetPosition() )
	{
		fp->Seek( offset, ICcpStream::SO_BEGIN );
	}

	// TODO: See if I can't skip the memcpy there and just read straight into buffer
	unsigned char* tmpData = CCP_NEW( "Tr2FontCacheManager/FileRead" ) unsigned char[count];
	ssize_t bytesRead = 0;
	// Freetype guarantees that count is never bigger that the stream length
	while( (unsigned long)bytesRead < count )
	{
		bytesRead += fp->Read( (void*)tmpData, count - bytesRead );

		memcpy( buffer, tmpData, bytesRead );
		buffer += bytesRead;
	}

	CCP_DELETE[] tmpData;
	return (unsigned long)bytesRead;
}

static void FileClose( FT_Stream stream )
{