o
    svXj"  ã                	   @   sÐ   d dl Z d dlZddlmZmZ ddlmZ ddlmZ dd„ Z	ddd	d	d
ddddœZ
G dd„ dejƒZdd„ ZG dd„ dejƒZe de¡ e ejee	¡ e eje¡ e ejd¡ e ejg d¢¡ dS )é    Né   )ÚImageÚ	ImageFile)Úi16be)Úo8c                 C   s   t | ƒdkot| ƒdkS )Né   éÚ  )ÚlenÚi16)Úprefix© r   úO/var/www/html/myproject/venv/lib/python3.10/site-packages/PIL/SgiImagePlugin.pyÚ_accept!   s   r   ÚLúL;16BÚRGBzRGB;16BÚRGBAzRGBA;16B))r   r   r   )r   r   r   )r   r   r   )r   r   r   )r   é   r   )r   r   r   )r   r   é   )r   r   r   c                   @   s   e Zd ZdZdZdd„ ZdS )ÚSgiImageFileÚSGIzSGI Image File Formatc              	   C   sx  d}| j  |¡}t|ƒsd}t|ƒ‚|d }|d }t|dƒ}t|dƒ}t|dƒ}t|dƒ}	|||	f}
d	}zt|
 }W n	 tyD   Y nw |d	krOd
}t|ƒ‚||f| _| d¡d | _	| j	dkrdd| _
d}|dkr¦|| | }|dkr…dd| j || j	d|ffg| _d S g | _|}| j	D ]}| j dd| j ||d|ff¡ ||7 }q�d S |dkrºdd| j ||||ffg| _d S d S )Né   zNot an SGI image filer   r   r   é   é   é
   Ú úUnsupported SGI image modeú;r   r   z	image/rgbéÿÿÿÿÚSGI16)r   r   Úrawr   Úsgi_rle)ÚfpÚreadr   Ú
ValueErrorr
   ÚMODESÚKeyErrorÚ_sizeÚsplitÚmodeÚcustom_mimetypeÚsizeÚtileÚappend)ÚselfÚheadlenÚsÚmsgÚcompressionÚbpcÚ	dimensionÚxsizeÚysizeÚzsizeÚlayoutÚrawmodeÚorientationÚpagesizeÚoffsetÚlayerr   r   r   Ú_open7   sV   




ÿ


ÿ
ÿ
ü
ÿÿzSgiImageFile._openN)Ú__name__Ú
__module__Ú__qualname__ÚformatÚformat_descriptionr>   r   r   r   r   r   3   s    r   c              	   C   sV  | j dkr| j dkr| j dkrd}t|ƒ‚| j}| dd¡}|dvr(d}t|ƒ‚d	}d
}d}d}	| j\}
}| j dkrA|dkrAd}	n| j dkrHd}	t| j ƒ}|	dksU|	dkrWd}t|  ¡ ƒ|krod|› dt|  ¡ ƒ› �}t|ƒ‚d}d}tj 	tj 
|¡¡d }| dd¡}d}| t d|¡¡ | t|ƒ¡ | t|ƒ¡ | t d|	¡¡ | t d|
¡¡ | t d|¡¡ | t d|¡¡ | t d|¡¡ | t d|¡¡ | t dd¡¡ | t d|¡¡ | t dd¡¡ | t d|¡¡ | t dd¡¡ d}|dk�r
d}|  ¡ D ]}| | d|d|¡¡ �qt|dƒ�r)| ¡  d S d S )Nr   r   r   r   r3   r   )r   r   z%Unsupported number of bytes per pixelr   r   r   r   r   z(incorrect number of bands in SGI write: z vs éÿ   ÚasciiÚignorez>hz>Hz>lÚ4só    Ú79sr0   Ú404sr   r    Úflush)r)   r$   ÚencoderinfoÚgetr+   r	   ÚgetbandsÚosÚpathÚsplitextÚbasenameÚencodeÚwriteÚstructÚpackr   r(   ÚtobytesÚhasattrrK   )Úimr"   Úfilenamer1   Úinfor3   r:   Úmagic_numberÚrleÚdimÚxÚyÚzÚpinminÚpinmaxÚimg_nameÚcolormapr9   Úchannelr   r   r   Ú_save}   sd   



ÿrg   c                   @   s   e Zd ZdZdd„ ZdS )ÚSGI16DecoderTc           	      C   sŠ   | j \}}}| jj| jj }t| jƒ}| j d¡ t|ƒD ]%}t	 
d| jj| jjf¡}| | j d| ¡dd||¡ | j |j|¡ qdS )Nr   r   r   r    r   )r   r   )ÚargsÚstater5   r6   r	   r)   ÚfdÚseekÚranger   ÚnewÚ	frombytesr#   rY   Úputband)	r.   Úbufferr9   Ústrider:   r;   r7   Úbandrf   r   r   r   ÚdecodeÌ   s   
ÿzSGI16Decoder.decodeN)r?   r@   rA   Ú	_pulls_fdrt   r   r   r   r   rh   É   s    rh   r   z	image/sgi)z.bwz.rgbz.rgbaz.sgi)rO   rU   r   r   r   Ú_binaryr   r
   r   r   r%   r   rg   Ú	PyDecoderrh   Úregister_decoderÚregister_openrB   Úregister_saveÚregister_mimeÚregister_extensionsr   r   r   r   Ú<module>   s.   øJL