a
    Sic+                     @   s   d dl mZmZ d dlmZ d dlmZ d dlmZ dZ	ddddddd	d
dd	d
Z
dd ZG dd dejZG dd dejZG dd dejZdd Zeejee eeje ede ede eejg d eejd dS )   )Image	ImageFile)i16be)o8)o32les    	
1LRGBCMYKPRGBA)
   P1   P2   P3   P4   P5   P6s   P0CMYKs   PyPs   PyRGBAs   PyCMYKc                 C   s   | dd dko| d dv S )N    r      Ps   0123456y )prefixr   r   N/var/www/html/django/DPS/env/lib/python3.9/site-packages/PIL/PpmImagePlugin.py_accept-   s    r   c                   @   s,   e Zd ZdZdZdd Zdd Zdd Zd	S )
PpmImageFilePPMzPbmplus imagec                 C   s:   d}t dD ](}| jd}|r(|tv r, q6||7 }q|S )N       r   )rangefpreadb_whitespace)selfmagic_cr   r   r   _read_magic:   s    
zPpmImageFile._read_magicc                 C   s   d}t |dkr\| jd}|s$q\n.|tv r6|s\qq\n|dkrR| jddvrq>q||7 }q|sjtdnt |dkrtd|  |S )Nr   
   r      #s   
z Reached EOF while reading headerzToken too long in file header: )lenr   r   r    
ValueErrordecode)r!   tokenr$   r   r   r   _read_tokenD   s&    

zPpmImageFile._read_tokenc                 C   s  |   }zt| }W n ty.   tdY n0 |dv r@d| _n|dv rPd| _n|dv r^d| _d }d}|d	v rrd
}tdD ]}t|  }|dkr|}qz|dkr|}|dkrd| _d}	 q>n
| | _}	qz|dkrz|}d|  k rdk sn t	d|dkr|dkrd| _|d
krz|dkr0|dkr0d}	qz|dkrzd}qz|dkrR|	ddfn|	|f}
||f| _
|dd||f| j |
fg| _d S )Nznot a PPM file)r   r   zimage/x-portable-bitmap)r   r   zimage/x-portable-graymap)r   r   zimage/x-portable-pixmapraw)r   r   r   	ppm_plain   r   r   r   1;I   i   z1maxval must be greater than 0 and less than 65536   r   I  I;16Bppm)r%   MODESKeyErrorSyntaxErrorcustom_mimetyper   intr,   moder)   _sizer   telltile)r!   magic_numberr<   maxvaldecoder_nameixr+   xsizeysizerawmodeargsr   r   r   _open\   sT    
zPpmImageFile._openN)__name__
__module____qualname__formatformat_descriptionr%   r,   rH   r   r   r   r   r   5   s
   
r   c                   @   sB   e Zd ZdZdd ZdddZdd Zd	d
 Zdd Zdd Z	dS )PpmPlainDecoderTc                 C   s   | j tjS )N)fdr   r   	SAFEBLOCK)r!   r   r   r   _read_block   s    zPpmPlainDecoder._read_blockr   c                 C   s8   | d|}| d|}|| dkr.t||S t||S )N   
   r   )findminmax)r!   blockstartabr   r   r   _find_comment_end   s    z!PpmPlainDecoder._find_comment_endc                 C   s   | j r:|r:| |}|dkr0||d d  }q:q|  }qd| _ |d}|dkrTq| ||}|dkr|d | ||d d   }q@|d | }d| _ qq@|S )Nr   Fr'   T)_comment_spansr[   rQ   rT   )r!   rW   Zcomment_endcomment_startr   r   r   _ignore_comments   s$    


z PpmPlainDecoder._ignore_commentsc                 C   s   t  }| jj| jj }t||kr|  }|s0q| |}d| }|D ] }|dvrLt	dt
|g qL|| d| }qt
dd}||S )z
        This is a separate method because in the plain PBM format, all data tokens are
        exactly one byte, so the inter-token whitespace is optional.
        r   )0   1   zInvalid token for this mode: Ns   01s    )	bytearraystaterD   rE   r(   rQ   r_   joinsplitr)   bytes	maketrans	translate)r!   datatotal_bytesrW   tokensr+   invertr   r   r   _decode_bitonal   s    
zPpmPlainDecoder._decode_bitonalc                 C   sz  t  }d}| jdkrdnd}| jdkr*dnd}t| j}| jj| jj | | }d}t||krv|  }	|	s|r~t d}	nqv| 	|	}	|r||	 }	|	
 }
|	r|	d	d   s|
 }t||krtd
|d |d   |
D ]}t||krtd
|d |d   t|}||kr2td| t|| | }|| jdkrXt|nt|7 }t||kr qVqqV|S )Nr&   r3      r   r4   r2   F    r\   zToken too long found in data: z'Channel value too large for this mode: )rb   r<   r   getmodebandsrc   rD   rE   r(   rQ   r_   re   isspacepopr)   r;   roundo32r   )r!   rA   ri   max_lenout_byte_countout_maxbandsrj   Z
half_tokenrW   rk   r+   valuer   r   r   _decode_blocks   sH    


 zPpmPlainDecoder._decode_blocksc                 C   sZ   d| _ | jdkr|  }d}n(| jd }| |}| jdkr@dn| j}| t|| dS )NFr   z1;8r\   r3   I;32r\   r   )r]   r<   rm   rG   rz   
set_as_rawrf   )r!   bufferri   rF   rA   r   r   r   r*     s    


zPpmPlainDecoder.decodeN)r   )
rI   rJ   rK   	_pulls_fdrQ   r[   r_   rm   rz   r*   r   r   r   r   rN      s   
".rN   c                   @   s   e Zd ZdZdd ZdS )
PpmDecoderTc                 C   s  t  }| jd }|dk rdnd}| jdkr.dnd}| jdkr@dnd}t| j}t|| jj| jj | | k r| j	
|| }t||| k rqt|D ]V}	|dkr||	 nt||	| }
t|t|
| | }
|| jdkrt|
nt|
7 }qqP| jdkrd	n| j}| t|| d
S )Nr\      r   r1   r3   rn   r4   r2   r{   r|   )rb   rG   r<   r   rp   r(   rc   rD   rE   rO   r   r   i16rU   rs   rt   r   r}   rf   )r!   r~   ri   rA   Zin_byte_countrv   rw   rx   pixelsrZ   ry   rF   r   r   r   r*     s$    
 "zPpmDecoder.decodeN)rI   rJ   rK   r   r*   r   r   r   r   r     s   r   c              
   C   s   | j dkrd\}}nN| j dkr(d\}}n:| j dkr<d\}}n&| j dv rPd\}}ntd	| j  d
||d| j   |dkr|d n&|dkr|dkr|d n
|d t| |dd| j d|ddffg d S )Nr   )r0   r   r   )r   r   r3   )r5   r   )r	   r   )r	   r   zcannot write mode z as PPMs   
%d %d
r   s   255
r   s   65535
r-   )r   r   r   r   )r<   OSErrorwritesizer   _save)imr   filenamerF   headr   r   r   r   1  s"    








r   r6   r.   )z.pbmz.pgmz.ppmz.pnmzimage/x-portable-anymapN) r   r   _binaryr   r   r   r   rt   r    r7   r   r   	PyDecoderrN   r   r   register_openrL   register_saveregister_decoderregister_extensionsregister_mimer   r   r   r   <module>   s6   ^ 