Method ReadData

Source/Utility/ZLibWrapper.cpp:187–224

//
//*****************************************************************************
bool	CInStream::ReadData( void * data, u32 length )
{
	if ( mFile != NULL )
	{
		u8 *		current_ptr( reinterpret_cast< u8 * >( data ) );
		u32			bytes_remaining( length );

		while( bytes_remaining > 0 )
		{
			u32		bytes_to_process( Min( bytes_remaining, u32(mBytesAvailable) ) );

			if( bytes_to_process > 0 )
			{
				#ifdef DAEDALUS_ENABLE_ASSERTS
				DAEDALUS_ASSERT( mBufferOffset + bytes_to_process <= u32(BUFFER_SIZE), "Reading too many bytes" );
				#endif
				memcpy( current_ptr, mBuffer + mBufferOffset, bytes_to_process );

				current_ptr += bytes_to_process;
				bytes_remaining -= bytes_to_process;
				mBufferOffset += bytes_to_process;
				mBytesAvailable -= bytes_to_process;
			}

			if( mBytesAvailable == 0 )
			{
				if( !Fill() )
				{
					return false;
				}
			}
		}

		return true;
	}

	return false;
}

//*****************************************************************************
//