o
    6>gW                     @  s   d dl mZ d dlZddlmZmZ ddlmZ dd
dZ	G dd dejZ
G dd dejZee
je
e	 ede ee
jd dS )    )annotationsN   )Image	ImageFile)i32beprefixbytesreturnboolc                 C  s   | d d dkS )N   s   qoif )r   r   r   E/var/www/html/venv/lib/python3.10/site-packages/PIL/QoiImagePlugin.py_accept   s   r   c                   @  s   e Zd ZdZdZdddZdS )	QoiImageFileQOIzQuite OK Imager	   Nonec                 C  s   t | jdsd}t|t| jdt| jdf| _| jdd }|dkr-dnd| _| jdtj	 t
dd	| j | j g| _d S )
Nr   znot a QOI filer   r      RGBRGBAqoi)r   r   )r   fpreadSyntaxErrori32_size_modeseekosSEEK_CURr   _Tiletelltile)selfmsgchannelsr   r   r   _open   s   ""zQoiImageFile._openN)r	   r   )__name__
__module____qualname__formatformat_descriptionr%   r   r   r   r   r      s    r   c                   @  s>   e Zd ZU dZdZded< i Zded< dddZdddZdS )
QoiDecoderTNzbytes | bytearray | None_previous_pixelzdict[int, bytes | bytearray]_previously_seen_pixelsvaluebytes | bytearrayr	   r   c                 C  sD   || _ |\}}}}|d |d  |d  |d  d }|| j|< d S )Nr            @   )r,   r-   )r"   r.   rgba
hash_valuer   r   r   _add_to_previous_pixels+   s   $z"QoiDecoder._add_to_previous_pixelsbuffer$bytes | Image.SupportsArrayInterfacetuple[int, int]c                   sN  j d usJ i _td t }tj}jjjj	 | }t
||k r j dd }|dkrJjrJtj djdd   }n|dkrUj d}n|d? }|dkrk|d	@ }j|td
}n|dkrjrtjd |d@ d?  d d jd |d@ d?  d d jd |d@  d d jd f}nc|dkrjrj dd }	|d	@ d  |	d@ d? d }
|	d@ d }tt fddt|
d|fD }|jdd  7 }n#|dkrjr|d	@ d }j}|dkr|d d }||| 7 }q$| |dkr|d d }||7 }t
||k s+| dS )N)r   r   r      r   r      r   r=   r      ?   )r   r   r   r   0                         c                 3  s*    | ]\}}j |   | d  V  qdS )rC   N)r,   ).0idiff
diff_greenr"   r   r   	<genexpr>[   s
    
z$QoiDecoder.decode.<locals>.<genexpr>)r   )fdr-   r9   	bytearrayr   getmodebandsmodestatexsizeysizelenr   r,   gettuple	enumerate
set_as_raw)r"   r:   databandsdest_lengthbyter.   opop_indexsecond_bytediff_red	diff_blue
run_lengthr   rL   r   decode2   sn    



2zQoiDecoder.decode)r.   r/   r	   r   )r:   r;   r	   r<   )	r&   r'   r(   	_pulls_fdr,   __annotations__r-   r9   rf   r   r   r   r   r+   &   s   
 
r+   r   z.qoi)r   r   r	   r
   )
__future__r   r    r   r   _binaryr   r   r   r   	PyDecoderr+   register_openr)   register_decoderregister_extensionr   r   r   r   <module>   s   
K