U
    ڲg                     @  s   d dl mZ d dlZd dlZddlmZmZ dd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g dS )    )annotationsN   )Image	ImageFilebytesbool)prefixreturnc                 C  s   | d d dkS )N      SIMPLE )r   r   r   7/tmp/pip-unpacked-wheel-xela2va7/PIL/FitsImagePlugin.py_accept   s    r   c                   @  sD   e Zd ZdZdZddddZdddd	d
dZdddddZdS )FitsImageFileZFITSNone)r	   c           
      C  sF  | j d k	sti }d}d}| j d}|s6d}t||d d  }|dkrTd}nP|rb|sbqnB|dkr| j t| j  d	 d	  |s| 	|\}}}d}q|rq|dd  
d
d  }	|	dr|	dd   }	|st|r|	dkrd}t||	||< q|sd}t||| j  d 7 }|d| j ||fg| _d S )NF P   zTruncated FITS file   )r      XTENSIONTs   ENDi@     /r      =r      TzNot a FITS filezNo image datar   r   )fpAssertionErrorreadOSErrorstripseekmathceiltell_parse_headerssplit
startswithr   SyntaxError
ValueErrorsizeZtile)
selfheadersZheader_in_progressdecoder_nameheadermsgkeywordoffsetargsvaluer   r   r   _open   sB     

zFitsImageFile._openzdict[bytes, bytes]r   ztuple[int, int] | None)r)   r   r	   c                 C  s\   t ||d  }|dkrd S |dkr8dt ||d  fS t ||d  t ||d  fS d S )Ns   NAXISr   r   s   NAXIS1s   NAXIS2)int)r(   r)   r   Znaxisr   r   r   	_get_sizeH   s    zFitsImageFile._get_sizez&tuple[str, int, tuple[str | int, ...]])r)   r	   c           	      C  s   d}d}d}| ddkrp| ddkrp|d d	krp| ||pBd
}t|d }|d |d  |d  }d}d}| ||}|sdS || _t||d  }|dkrd| _n.|dkrd| _n|dkrd| _n|dkrd| _|dkr| jddf}n|f}|||fS )N    rawr   r   s
   'BINTABLE's   ZIMAGEr   s   ZCMPTYPEs
   'GZIP_1  'r   s   BITPIXr   r      Z	fits_gzip)r   r   r   L   zI;16    I)iiF)getr3   r2   _size_modemode)	r(   r)   r   r*   r.   Zno_prefix_sizenumber_of_bitsr'   r/   r   r   r   r"   T   s>    
zFitsImageFile._parse_headersN)__name__
__module____qualname__formatformat_descriptionr1   r3   r"   r   r   r   r   r      s
   -r   c                   @  s    e Zd ZdZdddddZdS )FitsGzipDecoderTr   ztuple[int, int])bufferr	   c           	      C  s   | j d k	stt| j  }g }d}t| jd d d}t| jj	D ]J}t
 }t| jjD ](}|||d|  |d  7 }|d7 }q\|| qF| tdd |d d d D  dS )Nr   r      c                 S  s   g | ]}|D ]}|qqS r   r   ).0rowZpixelr   r   r   
<listcomp>   s       z*FitsGzipDecoder.decode.<locals>.<listcomp>r=   )r=   r   )fdr   gzip
decompressr   minr/   rangestateZysize	bytearrayZxsizeappendZ
set_as_rawr   )	r(   rI   r0   Zrowsr.   rB   yrL   xr   r   r   decode   s    
"zFitsGzipDecoder.decodeN)rC   rD   rE   Z	_pulls_fdrX   r   r   r   r   rH   ~   s   rH   r7   z.fitz.fits)
__future__r   rO   r   r   r   r   r   r   Z	PyDecoderrH   Zregister_openrF   Zregister_decoderZregister_extensionsr   r   r   r   <module>   s   g