B
    zb                 @   sx   d dl mZmZmZ d dlmZ d dlmZ d dlm	Z	 dd Z
G dd dejZeejee
 eejd	d
g dS )   )Image	ImageFileImagePalette)i16le)i32le)o8c             C   s(   t | dko&t| ddko&t| ddkS )N      )i  i     )       )leni16)prefix r   1lib/python3.7/site-packages/PIL/FliImagePlugin.py_accept   s    r   c               @   s@   e Zd ZdZdZdZdd Zdd Zdd	 Zd
d Z	dd Z
dS )FliImageFileZFLIzAutodesk FLI/FLC AnimationFc             C   s  | j d}t|r$|dd dks,tdt|d| _| jdk| _d| _t|d	t|d
f| _t	|d}t|d}|dkr|d d }|| j
d< dd tdD }| j d}d| _t|ddkr| jt	| | _| j d}t|ddkr6| j d}t|ddkr| |d nt|ddkr6| |d dd |D }tdd|| _d| _| j | _| j  | _| d d S )N         s     znot an FLI/FLC filer   r   P   
      r	   i  i  F   durationc             S   s   g | ]}|||fqS r   r   ).0ar   r   r   
<listcomp>F   s    z&FliImageFile._open.<locals>.<listcomp>   i   i        r   c             S   s*   g | ]"\}}}t |t | t | qS r   )r   )r   rgbr   r   r   r   Y   s    ZRGB    )fpreadr   SyntaxErrorr   Zn_framesZis_animatedmodeZ_sizei32inforange_FliImageFile__offset_paletter   rawjoinpalette_FliImageFile__frame_fptell_FliImageFile__rewindseek)selfsr   magicr3   r   r   r   _open/   s<    


zFliImageFile._openc       
      C   s   d}xt t| jdD ]}| jd}||d  }|d }|dkrJd}| j|d }xZt dt|dD ]F}|| |> }||d  |> }||d  |> }	|||	f||< |d7 }qlW qW d S )Nr   r"   r   r    r   )r.   r   r(   r)   r   )
r9   r3   shiftier:   nr#   r$   r%   r   r   r   r0   b   s    zFliImageFile._palettec             C   sN   |  |sd S || jk r"| d x&t| jd |d D ]}| | q8W d S )Nr   r   )Z_seek_checkr4   _seekr.   )r9   framefr   r   r   r8   t   s    


zFliImageFile.seekc             C   s   |dkr$d| _ | j| j d| _n|   || j d krHtd| || _ | j| _| j| j | jd}|sxt	t
|}|| _dd| j | jd fg| _|  j|7  _d S )	Nr   r'   r   r   zcannot seek to frame r	   Zfli)r   r   )r4   r5   r8   r7   r/   load
ValueErrorr(   r)   EOFErrorr,   ZdecodermaxblocksizeZtile)r9   rB   r:   Z	framesizer   r   r   rA   }   s"    zFliImageFile._seekc             C   s   | j S )N)r4   )r9   r   r   r   r6      s    zFliImageFile.tellN)__name__
__module____qualname__formatZformat_descriptionZ!_close_exclusive_fp_after_loadingr<   r0   r8   rA   r6   r   r   r   r   r   )   s   3	r   z.fliz.flcN) r   r   r   Z_binaryr   r   r   r,   r   r   r   Zregister_openrK   Zregister_extensionsr   r   r   r   <module>   s   w