o
    h\                     @  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S )Ns   qoif)
startswith)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 )	QoiImageFileZ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 )
N   znot a QOI filer   r      RGBZRGBAqoi)r   r   )r   fpreadSyntaxErrori32_size_modeseekosSEEK_CURr   Z_TiletellZtile)selfmsgZ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$| |dkr|d d }||7 }t
||k s+| dS )N)r   r   r      r   r      r   r9   r      ?   )r   r   r   r   0                         c                 3  s*    | ]\}}j |   | d  V  qdS )r?   N)r(   ).0idiffZ
diff_greenr   r   r   	<genexpr>[   s
    
z$QoiDecoder.decode.<locals>.<genexpr>)r   )fdr)   r5   	bytearrayr   ZgetmodebandsmodestateZxsizeZysizelenr   r(   gettuple	enumerateZ
set_as_raw)r   r6   dataZbandsZdest_lengthbyter*   opZop_indexZsecond_byteZdiff_redZ	diff_blueZ
run_lengthr   rH   r   decode2   sn    



2zQoiDecoder.decode)r*   r+   r	   r   )r6   r7   r	   r8   )	r"   r#   r$   Z	_pulls_fdr(   __annotations__r)   r5   rV   r   r   r   r   r'   &   s   
 
r'   r   z.qoi)r   r   r	   r
   )
__future__r   r    r   r   _binaryr   r   r   r   Z	PyDecoderr'   Zregister_openr%   Zregister_decoderZregister_extensionr   r   r   r   <module>   s   
K