U
    _+*                     @   s   d dl mZ ddlmZmZ zddlmZ dZW n ek
rH   dZY nX ddddZdddZ	d	d
d
dZ
dd ZG dd dejZdd Zdd Zeejee ereeje ejreeje eejd eejd dS )    )BytesIO   )Image	ImageFile)_webpTF)RGBXRGBARGB)r	   r   r	   r   )s   VP8 s   VP8Xs   VP8Lc                 C   sL   | d d dk}| dd dk}| dd t k}|rH|rH|rHtsDdS dS d S )	N   s   RIFF      s   WEBP   zEimage file could not be identified because WEBP support not installedT)_VP8_MODES_BY_IDENTIFIER	SUPPORTED)prefixZis_riff_file_formatZis_webp_fileZis_valid_vp8_mode r   F/home/toby/toby_env/lib/python3.8/site-packages/PIL/WebPImagePlugin.py_accept   s    r   c                       sj   e Zd ZdZdZdZdZdd Zdd Zdd	 Z	dddZ
dd Zdd Z fddZ fddZ  ZS )WebPImageFileZWEBPz
WebP imager   c                 C   s  t js|t | j \}}}| _}}|r2|| jd< |r@|| jd< ||f| _t|| _dd| j	 d| jfg| _
d| _d| _d S t | j | _| j \}}}}}}	||f| _|| jd< |d	? d
@ |d? d
@ |d? d
@ |d
@ f\}
}}}||||
f| jd< || _| jdk| _|	dkrdn|	| _|	| _g | _
| jd}| jd}| jd}|r`|| jd< |rp|| jd< |r|| jd< | jdd d S )Nicc_profileexifrawr   r   r   r   Floop      r   r   
backgroundr   r	   ZICCPZEXIFzXMP xmp)reset)r   HAVE_WEBPANIMZ
WebPDecodefpreadmodeinfo_sizer   sizetilen_framesZis_animatedZWebPAnimDecoder_decoderget_inforawmodeZ	get_chunk_reset)selfdatawidthheightr   r   Z
loop_countZbgcolorZframe_countr"   bg_abg_rbg_gbg_br   r   r   r   _open,   sN    











zWebPImageFile._openc                 C   s   d| j krd S t|  S )Nr   )r#   dictZgetexifr,   r   r   r   _getexif`   s    
zWebPImageFile._getexifc                 C   s   |  |sd S || _d S N)Z_seek_check_WebPImageFile__logical_framer,   framer   r   r   seeke   s    
zWebPImageFile.seekTc                 C   s$   |r| j   d| _d| _d| _d S )Nr   )r(   r   _WebPImageFile__physical_frame_WebPImageFile__loaded_WebPImageFile__timestamp)r,   r   r   r   r   r+   l   s
    
zWebPImageFile._resetc                 C   sd   | j  }|  jd7  _|d kr:|   | d td|\}}|| j }|| _||8 }|||fS )Nr   r   z(failed to decode next frame in WebP file)r(   Zget_nextr>   r+   r<   EOFErrorr@   )r,   retr-   	timestampdurationr   r   r   	_get_nexts   s    


zWebPImageFile._get_nextc                 C   s8   | j |krd S || j k r |   | j |k r4|   q d S r8   )r>   r+   rE   r:   r   r   r   _seek   s    


zWebPImageFile._seekc                    s   t jr| j| jkr| | j |  \}}}|| jd< || jd< | j| _| jr^| jr^| j	  t
|| _dd| j d| jfg| _t  S )NrC   rD   r   r   r   )r   r   r?   r9   rF   rE   r#   r    Z_exclusive_fpcloser   r%   r*   r&   superload)r,   r-   rC   rD   	__class__r   r   rI      s    



zWebPImageFile.loadc                    s   t jst  S | jS r8   )r   r   rH   tellr9   r6   rJ   r   r   rL      s    
zWebPImageFile.tell)T)__name__
__module____qualname__formatformat_descriptionr?   r9   r4   r7   r<   r+   rE   rF   rI   rL   __classcell__r   r   rJ   r   r   %   s   4
r   c           '      C   s  | j  }t|dg }d}| g| D ]}|t|dd7 }q(|dkrVt| || d S d}d|krl|d }nTd| jkr| jd }t|tr| 	 }|r||d |d d  \}	}
}|	|
|df}| j dd}| j d	d}| j d
d}| j dd }| j dd }| j dd}d}| j dd}| j dd}| j dd}| j dd}| j dd}t|t
jrt| }| j dd}|rd}|d kr|rdnd}|d kr|rdnd}t|ttfrt|dkstdd |D stdt| |\}}}}|d> |d> B |d > B |d> B }t| jd | jd |||||||	}d}d}|  } z| g| D ]}t|dd}!t|!D ]}"||" |  |}#|j}$|jtkrd!|jkpd"|jkp|jd#kod!|j k}%|%rd$nd%}$||$}#|$d%kr
d&}$||#d'|$||#jd |#jd |$||| t|ttfrT||| 7 }n||7 }|d7 }qqnW 5 | |  X |d |ddd||d ||||}&|&d krtd(| |& d S ))Nappend_imagesr   r'   r   )r   r   r   r   r      rD   r   minimize_sizeFkminkmaxallow_mixedlosslessqualityP   methodr    r   r   	         r
   c                 s   s   | ]}|d ko|dk V  qdS )r      Nr   ).0vr   r   r   	<genexpr>   s     z_save_all.<locals>.<genexpr>z<Background color is not an RGBA tuple clamped to (0-255): %sr   r   r   AaPr   r	   r   r   1cannot write file as WebP (encoder returned None))!encoderinfocopylistgetgetattr_saver#   
isinstanceintZ
getpaletter   ExiftobytestuplelenallOSErrorstrr   ZWebPAnimEncoderr%   rL   r<   rangerI   r"   _VALID_WEBP_MODESimgetpalettemodeconvertaddZassemblewrite)'rz   r    filenameri   rS   totalZimsr   ZpalettergbrD   r   rU   rV   rW   rX   verboserY   rZ   r\   r   r   r   r1   r2   r3   r0   encZ	frame_idxrC   Zcur_idxZnfridxr;   r*   alphar-   r   r   r   	_save_all   s    







 




r   c                 C   s   | j dd}| j dd}| j dd}| j dd}t|tjrL| }| j dd}| j d	d
}| jtkrd| jkpd| jkp| jdkod| j	 k}	| 
|	rdnd} t|  | jd
 | jd |t|| j||||
}
|
d krtd||
 d S )NrY   FrZ   r[   r   r]   r   r   r\   r   re   rf   rg   r   r	   r   rh   )ri   rl   ro   r   rq   rr   r"   _VALID_WEBP_LEGACY_MODESrz   r{   r|   r   Z
WebPEncoder%   floatrv   r~   )rz   r    r   rY   rZ   r   r   r   r\   r   r-   r   r   r   rn   5  s<    

rn   z.webpz
image/webpN)ior   r]   r   r   r   r   ImportErrorry   r   r   r   r   r   rn   Zregister_openrP   Zregister_saver   Zregister_save_allZregister_extensionZregister_mimer   r   r   r   <module>   s2   

  $