a
    ù!f"  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   úS/var/www/html/python-backend/venv/lib/python3.9/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SgiImageFileZ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yˆ   Y n0 |d	kržd
}t|ƒ‚||f| _| d¡d | _	| j	dkrÈd| _
d}|dkrN|| | }|dkrdd| j || j	d|ffg| _n@g | _|}| j	D ].}| j dd| j ||d|ff¡ ||7 }qn&|dkrtdd| j ||||ffg| _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   Zsgi_rle)ÚfpÚreadr   Ú
ValueErrorr
   ÚMODESÚKeyErrorÚ_sizeÚsplitÚmodeZcustom_mimetypeÚsizeZtileÚappend)ÚselfZheadlenÚsÚmsgÚcompressionÚbpcÚ	dimensionÚxsizeÚysizeÚzsizeZlayoutÚrawmodeÚorientationÚpagesizeÚoffsetÚlayerr   r   r   Ú_open7   sP    








ÿ
ÿ
ÿzSgiImageFile._openN)Ú__name__Ú
__module__Ú__qualname__ÚformatÚformat_descriptionr8   r   r   r   r   r   3   s   r   c              	   C   sR  | j dkr*| j dkr*| j dkr*d}t|ƒ‚| j}| dd¡}|dvrPd}t|ƒ‚d	}d
}d}d}	| j\}
}| j dkr‚|dkr‚d}	n| j dkrd}	t| j ƒ}|	dksª|	dkr®d}t|  ¡ ƒ|krÞd|› 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rN| ¡  d S )Nr   r   r   r   r.   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>lZ4só    Z79sr+   Z404sr   r   Úflush)r'   r"   ZencoderinfoÚgetr(   r	   ZgetbandsÚosÚpathÚsplitextÚbasenameÚencodeÚwriteÚstructÚpackr   r&   ÚtobytesÚhasattrrB   )Úimr    Úfilenamer,   Úinfor.   r4   Zmagic_numberZrleÚdimÚxÚyÚzZpinminZpinmaxZimg_nameZcolormapr3   Úchannelr   r   r   Ú_save}   sb    



rV   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 ]J}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stater0   r1   r	   r'   ÚfdÚseekÚranger   ÚnewÚ	frombytesr!   rN   Zputband)	r*   Úbufferr3   Zstrider4   r5   r2   ZbandrU   r   r   r   ÚdecodeÌ   s    
ÿzSGI16Decoder.decodeN)r9   r:   r;   Z	_pulls_fdr`   r   r   r   r   rW   É   s   rW   r   z	image/sgi)z.bwz.rgbz.rgbaz.sgi)rD   rJ   r   r   r   Ú_binaryr   r
   r   r   r#   r   rV   Z	PyDecoderrW   Zregister_decoderZregister_openr<   Zregister_saveZregister_mimeZregister_extensionsr   r   r   r   Ú<module>   s,   øJL