o
    g[                     @   s   d dl Z d dlZd dlZd dlZddlmZ ddlmZ dZdZ	dZ
	 dd	d
dddZ	 dd Zdd ZG dd dejZG dd deZG dd dZd&ddZd'ddZdd ZG dd dZG d d! d!ZG d"d# d#eZG d$d% d%eZdS )(    N   )Image)is_pathi   i   Fzimage buffer overrun errorzdecoding errorzunknown errorzbad configurationzout of memory error)ic                 C   sL   zt j| }W n ty   t| }Y nw |sd|  }|d7 }t|)Nzdecoder error z when reading image file)r   coregetcodecstatusAttributeErrorERRORSgetOSError)errormsg r   K/home/ubuntu/cloudmapper/venv/lib/python3.10/site-packages/PIL/ImageFile.pyraise_oserror@   s   
r   c                 C   s   | d S )N   r   )tr   r   r   	_tilesortK   s   r   c                       s^   e Zd ZdZd fdd	Zdd Z fddZd	d
 Zdd Zdd Z	dd Z
dd Z  ZS )	ImageFilez*Base class for image file format handlers.Nc                    s   t    d| _d | _d | _	 d| _d| _t| _t	|r)t
|d| _|| _d| _n	|| _|| _d | _z8z|   W n tttttjfyP } zt||d }~ww | jrb| jd dksb| jd dkrhd}t|W d S  tyz   | jry| j   w )Nr   r   r   rbTznot identified by this driver)super__init__
_min_framecustom_mimetypetilereadonlydecoderconfigMAXBLOCKdecodermaxblockr   openfpfilename_exclusive_fp_open
IndexError	TypeErrorKeyErrorEOFErrorstructr   SyntaxErrormodesizeBaseExceptionclose)selfr#   r$   vr   	__class__r   r   r   X   sJ   

"	
zImageFile.__init__c                 C   s,   | j r| j S | jd urtj| j S d S N)r   formatr   MIMEr   upperr1   r   r   r   get_format_mimetype   s
   
zImageFile.get_format_mimetypec                    s   g | _ t | d S r5   )r   r   __setstate__)r1   stater3   r   r   r;      s   zImageFile.__setstate__c                 C   s   | j r| j  d| _dS )zCheck file integrityN)r%   r#   r0   r9   r   r   r   verify   s   

zImageFile.verifyc                 C   s  | j du rd}t|tj| }| j s|S d| _| jo"t| j dk}|o*ttd }d}z| j	}d}W n t
yA   | jj}Y nw z| j}d}W n t
yV   | jj}Y nw |r| j d \}}}	}
|dkrt|
dkr|
d | jkr|
d tjv rzOddl}t| j}|j| d|jd	| _W d   n1 sw   Y  |	| jd |
d   | j krttj| j| j||	|
| _d}| jrd| j_W n t
ttfy   d| _Y nw |   d
}| js| j jtd z| j}W n t
y   d}Y nw dd t !| j dd D | _ | j D ]\}}}	}
||	 t"| j||
| j#}zw|$| j| |j%r;|&| j |'dd }nW|}	 z|| j(}W n  t)t*j+fye } zt,rZW Y d}~n8d}t||d}~ww |syt,rmn%dt| d}t||| }|'|\}}|dk rn||d }q>W |-  q|-  w g | _ || _.| /  | j0r| j1r| j2  d| _| jst,s|dk rt3| tj| S )z"Load image data based on tile listNzcannot load this imager   pypy_version_infor   Fraw   )accessr   key    c                 S   s   g | ]
\}}t |d  qS )r   )list).0_tilesr   r   r   
<listcomp>   s    
z"ImageFile.load.<locals>.<listcomp>c                 S   s   | d | d | d fS )Nr   r   r@   r   )r   r   r   r   <lambda>   s    z ImageFile.load.<locals>.<lambda>Tzimage file is truncatedzimage file is truncated (z bytes not processed))4r   r   r   loadmapr$   lenhasattrsys	load_readr   r#   read	load_seekseekr-   	_MAPMODESmmapr"   filenoACCESS_READr.   r	   
map_bufferimpalettedirtyImportErrorload_preparesortr   tile_prefix	itertoolsgroupby_getdecoderr   setimagepulls_fdsetfddecoder!   r'   r+   r   LOAD_TRUNCATED_IMAGEScleanupr   load_endr%   !_close_exclusive_fp_after_loadingr0   r   )r1   r   pixeluse_mmapr   rQ   rS   decoder_nameextentsoffsetargsrU   r#   err_codeprefixdecoderbsenr   r   r   rK      s   
 





zImageFile.loadc                 C   sT   | j r| j j| jks| j j| jkrtj| j| j| _ | jdkr(tj|  d S d S )NP)rY   r-   r.   r   r	   newrK   r9   r   r   r   r]   $  s
   "
zImageFile.load_preparec                 C   s   d S r5   r   r9   r   r   r   ri   ,  s   zImageFile.load_endc                 C   sF   || j k st| dr| jd u s|| j| j  krd}t||  |kS )N	_n_framesz attempt to seek outside sequence)r   rN   rz   n_framesr*   tell)r1   framer   r   r   r   _seek_check8  s   

zImageFile._seek_check)NN)__name__
__module____qualname____doc__r   r:   r;   r=   rK   r]   ri   r~   __classcell__r   r   r3   r   r   U   s    0	 
r   c                   @   s(   e Zd ZdZdd Zdd Zdd ZdS )	StubImageFilez
    Base class for stub image loaders.

    A stub loader is an image loader that can identify files of a
    certain format, but relies on external code to load the file.
    c                 C      d}t |)Nz+StubImageFile subclass must implement _openNotImplementedErrorr1   r   r   r   r   r&   P  s   zStubImageFile._openc                 C   sT   |   }|d u rd| j d}t||| }|d usJ |j| _|j| _| S )Nzcannot find loader for this z file)_loadr6   r   rK   r4   __dict__)r1   loaderr   imager   r   r   rK   T  s   
zStubImageFile.loadc                 C   r   )z (Hook) Find actual image loader.z+StubImageFile subclass must implement _loadr   r   r   r   r   r   `  s   zStubImageFile._loadN)r   r   r   r   r&   rK   r   r   r   r   r   r   H  s
    r   c                   @   sP   e Zd ZdZdZdZdZdZdZdZ	dd Z
dd Zdd	 Zd
d Zdd ZdS )Parserzj
    Incremental image parser.  This class implements the standard
    feed/close consumer interface.
    Nr   c                 C   s   | j du s	J ddS )z
        (Consumer) Reset the parser.  Note that you can only call this
        method immediately after you've created a parser; parser
        instances cannot be reused.
        Nzcannot reuse parsers)datar9   r   r   r   resets  s   zParser.resetc                 C   s  | j rdS | jdu r|| _n| j| | _| jrh| jdkr=tt| j| j}| j|d | _| j| | _| jdks;| js=dS | j| j\}}|dk r^d| _d| _ |dk r\d| _t| ndS | j|d | _dS | jrmdS zt	
| j}t|}W d   n1 sw   Y  W n
 ty   Y dS w t|dpt|d}|st|jdkrd| _n:|  |jd \}}}	}
g |_t|j||
|j| _| j|j| |	| _| jt| jkr| j| jd | _d| _|| _dS )z
        (Consumer) Feed data to the parser.

        :param data: A string buffer.
        :exception OSError: If the parser failed to parse the image file.
        Nr   r   rR   rP   )finishedr   rs   ro   minrM   rf   r   r   ioBytesIOr   r"   r   rN   r   r]   rb   r-   r   rc   rY   )r1   r   skiprw   rv   r#   rY   flagdoar   r   r   feed{  sX   	



zParser.feedc                 C   s   | S r5   r   r9   r   r   r   	__enter__  s   zParser.__enter__c                 G   s   |    d S r5   )r0   r1   rp   r   r   r   __exit__  s   zParser.__exit__c              	   C   s   | j r| d d | _| _ | jsd}t|| js d}t|| jrOt| j}zt	|| _W | j
  n| j
  w W d   | jS 1 sJw   Y  | jS )a  
        (Consumer) Close the stream.

        :returns: An image object.
        :exception OSError: If the parser failed to parse the image file either
                            because it cannot be identified or cannot be
                            decoded.
        rD   Nzimage was incompletezcannot parse this image)rs   r   r   r   r   r   r   r   r   r"   rK   )r1   r   r#   r   r   r   r0     s$   


zParser.close)r   r   r   r   incrementalr   r   rs   ro   r   r   r   r   r   r0   r   r   r   r   r   f  s    Mr   c              
   C   s   |    t| dsd| _|jtd tt|| jd d }z| }|	  t
| |||| W n ttjfyM } zt
| |||d| W Y d}~nd}~ww t|drY|	  dS dS )zHelper to save image based on tile list

    :param im: Image object.
    :param fp: File object.
    :param tile: Tile list.
    :param bufsize: Optional buffer size
    encoderconfigr   rB   r      Nflush)rK   rN   r   r^   r   maxr    r.   rV   r   _encode_tiler   r   UnsupportedOperation)rY   r#   r   bufsizefhexcr   r   r   _save  s    	

r   c              	   C   s   |D ]g\}}}}	|dkr| | t| j||	| j}
zI|
| j| |
jr2|
| |
	 d }n|rJ	 |

|dd  \}}|| |rHnq5n|
||}|dk r_d| d}t||W |
  q|
  w d S )Nr   r   Tzencoder error z when writing image file)rS   r   _getencoderr-   r   rc   rY   	pushes_fdre   encode_to_pyfdencodewriteencode_to_filer   rh   )rY   r#   r   r   r   r   rv   rt   r   r   encodererrcoder   r   r   r   r   r     s0   



r   c                 C   s   |dkrdS |t kr| |}t||k rd}t||S g }|}|dkr?| t|t }|s0n|| |t|8 }|dks%tdd |D |k rPd}t|d|S )a  
    Reads large blocks in a safe way.  Unlike fp.read(n), this function
    doesn't trust the user.  If the requested size is larger than
    SAFEBLOCK, the file is read block by block.

    :param fp: File handle.  Must implement a <b>read</b> method.
    :param size: Number of bytes to read.
    :returns: A string containing <i>size</i> bytes of data.

    Raises an OSError if the file is truncated and the read cannot be completed

    r   rD   zTruncated File Readc                 s   s    | ]}t |V  qd S r5   )rM   )rF   r   r   r   r   	<genexpr>E  s    z_safe_read.<locals>.<genexpr>)	SAFEBLOCKrQ   rM   r   r   appendsumjoin)r#   r.   r   r   remaining_sizeblockr   r   r   
_safe_read(  s*   


r   c                   @   s   e Zd Zdd Zdd ZdS )PyCodecStatec                 C   s   d| _ d| _d| _d| _d S )Nr   )xsizeysizexoffyoffr9   r   r   r   r   L  s   
zPyCodecState.__init__c                 C   s    | j | j| j | j | j| j fS r5   )r   r   r   r   r9   r   r   r   rn   R  s    zPyCodecState.extentsN)r   r   r   r   rn   r   r   r   r   r   K  s    r   c                   @   s6   e Zd Zdd Zdd Zdd Zdd Zdd
dZd	S )PyCodecc                 G   s(   d | _ t | _d | _|| _| | d S r5   )rY   r   r<   fdr-   init)r1   r-   rp   r   r   r   r   W  s
   zPyCodec.__init__c                 C   
   || _ dS )z
        Override to perform codec specific initialization

        :param args: Array of args items from the tile entry
        :returns: None
        N)rp   r   r   r   r   r   ^     
zPyCodec.initc                 C   s   dS )zT
        Override to perform codec specific cleanup

        :returns: None
        Nr   r9   r   r   r   rh   g  s   zPyCodec.cleanupc                 C   r   )z
        Called from ImageFile to set the Python file-like object

        :param fd: A Python file-like object
        :returns: None
        N)r   )r1   r   r   r   r   re   o  r   zPyCodec.setfdNc                 C   s   || _ |r|\}}}}nd\}}}}|dkr%|dkr%| j j\| j_| j_n|| j_|| j_|| | j_|| | j_| jjdksE| jjdkrKd}t|| jj| jj | j jd ksg| jj| jj | j jd krmd}t|dS )z
        Called from ImageFile to set the core output image for the codec

        :param im: A core image object
        :param extents: a 4 tuple of (x0, y0, x1, y1) defining the rectangle
            for this tile
        :returns: None
        )r   r   r   r   r   zSize cannot be negativer   z Tile cannot extend outside imageN)rY   r.   r<   r   r   r   r   
ValueError)r1   rY   rn   x0y0x1y1r   r   r   r   rc   x  s$   zPyCodec.setimager5   )r   r   r   r   r   rh   re   rc   r   r   r   r   r   V  s    		r   c                   @   s2   e Zd ZdZdZedd Zdd Zd
dd	ZdS )	PyDecoderz
    Python implementation of a format decoder. Override this class and
    add the decoding logic in the :meth:`decode` method.

    See :ref:`Writing Your Own File Codec in Python<file-codecs-py>`
    Fc                 C      | j S r5   )	_pulls_fdr9   r   r   r   rd        zPyDecoder.pulls_fdc                 C      t  )a=  
        Override to perform the decoding process.

        :param buffer: A bytes object with the data to be decoded.
        :returns: A tuple of ``(bytes consumed, errcode)``.
            If finished with decoding return -1 for the bytes consumed.
            Err codes are from :data:`.ImageFile.ERRORS`.
        r   )r1   bufferr   r   r   rf        	zPyDecoder.decodeNc                 C   sl   |s| j }t| j d|}|| j| j  ||}|d dkr(d}t||d dkr4d}t|dS )a  
        Convenience method to set the internal image from a stream of raw data

        :param data: Bytes to be set
        :param rawmode: The rawmode to be used for the decoder.
            If not specified, it will default to the mode of the image
        :returns: None
        r?   r   znot enough image datar   zcannot decode image dataN)	r-   r   rb   rc   rY   r<   rn   rf   r   )r1   r   rawmoder   ru   r   r   r   r   
set_as_raw  s   

zPyDecoder.set_as_rawr5   )	r   r   r   r   r   propertyrd   rf   r   r   r   r   r   r     s    
r   c                   @   s8   e Zd ZdZdZedd Zdd Zdd Zd	d
 Z	dS )	PyEncoderz
    Python implementation of a format encoder. Override this class and
    add the decoding logic in the :meth:`encode` method.

    See :ref:`Writing Your Own File Codec in Python<file-codecs-py>`
    Fc                 C   r   r5   )
_pushes_fdr9   r   r   r   r     r   zPyEncoder.pushes_fdc                 C   r   )a   
        Override to perform the encoding process.

        :param bufsize: Buffer size.
        :returns: A tuple of ``(bytes encoded, errcode, bytes)``.
            If finished with encoding return 1 for the error code.
            Err codes are from :data:`.ImageFile.ERRORS`.
        r   )r1   r   r   r   r   r     r   zPyEncoder.encodec                 C   s2   | j sdS | d\}}}|r| j| ||fS )z
        If ``pushes_fd`` is ``True``, then this method will be used,
        and ``encode()`` will only be called once.

        :returns: A tuple of ``(bytes consumed, errcode)``.
            Err codes are from :data:`.ImageFile.ERRORS`.
        )r   r   r   )r   r   r   r   )r1   bytes_consumedr   r   r   r   r   r     s   zPyEncoder.encode_to_pyfdc                 C   sB   d}|dkr|  |\}}}|dkr|||d  |dks|S )z
        :param fh: File handle.
        :param bufsize: Buffer size.

        :returns: If finished successfully, return 0.
            Otherwise, return an error code. Err codes are from
            :data:`.ImageFile.ERRORS`.
        r   N)r   r   )r1   r   r   r   statusbufr   r   r   r     s   	zPyEncoder.encode_to_fileN)
r   r   r   r   r   r   r   r   r   r   r   r   r   r   r     s    
r   )r   r5   )r   r`   r+   rO    r   _utilr   r    r   rg   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   <module>   s>   
 t 

#H1