U
    %d                     @   sB  d dl Z d dlZ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	m
Z
mZmZmZ ddlmZ ddlmZ ddlmZ ddlmZ dd	lmZ dd
lmZ eeZedjZdZ ddddddddddddddddZ!edZ"ej#Z$de$ Z%G dd  d eZ&G d!d" d"eZ'd#d$ Z(d%d& Z)dUd'd(Z*G d)d* d*Z+G d+d, d,e,Z-G d-d. d.Z.G d/d0 d0e+Z/d1d2 Z0G d3d4 d4ejZ1d5d6d7d8d9d:d;d;d<d=d>d?d@dAdBZ2dCdD Z3G dEdF dFZ4G dGdH dHZ5dIdJ Z6dKdL Z7e3dMfdNdOZ8dPdQ Z9e	:e1j;e1e0 e	<e1j;e8 e	=e1j;e7 e	>e1j;dRdSg e	?e1j;dT dS )V    N)IntEnum   )Image
ImageChops	ImageFileImagePaletteImageSequence)i16be)i32be)o8)o16be)o32be)	deprecates   \w\w\w\ws   PNG

)1r   )LL;2)r   L;4)r   r   )II;16B)RGBr   )r   zRGB;16B)PP;1)r   P;2)r   P;4)r   r   )LAr   )RGBAzLA;16B)r   r   )r   zRGBA;16B))r   r   )   r   )   r   )   r   )   r   )r   r   )r   r   )r      )r   r    )r   r    )r   r    )r   r   )r   r   )r      )r   r!   s   ^* *$@   c                   @   s   e Zd ZdZdZdZdS )Disposalr   r   r   N)__name__
__module____qualname__OP_NONEOP_BACKGROUNDOP_PREVIOUS r*   r*   6/tmp/pip-unpacked-wheel-pyoxjemt/PIL/PngImagePlugin.pyr#   c   s   r#   c                   @   s   e Zd ZdZdZdS )Blendr   r   N)r$   r%   r&   	OP_SOURCEOP_OVERr*   r*   r*   r+   r,   x   s   r,   c                 C   s   t dtdi D ]X\}}| |r| t|d  } | |jkrt| |  d|j d|   ||    S qdt d|  d}t|d S )NZAPNG_DISPOSE_ZAPNG_BLEND_
   .zmodule 'z' has no attribute '')	r#   r,   items
startswithlen__members__r   r$   AttributeError)nameenumprefixmsgr*   r*   r+   __getattr__   s    

 r;   c                 C   s*   t  }|| t}|jr&d}t||S )NzDecompressed Data Too Large)zlibdecompressobj
decompressMAX_TEXT_CHUNKunconsumed_tail
ValueError)sZdobj	plaintextr:   r*   r*   r+   _safe_zlib_decompress   s    rD   c                 C   s   t | |d@ S )Nl    )r<   crc32)dataseedr*   r*   r+   _crc32   s    rH   c                   @   s^   e Zd Zdd Zdd Zdd Zdd Zd	d
 Zdd Zdd Z	dd Z
dd ZdddZdS )ChunkStreamc                 C   s   || _ g | _d S N)fpqueueselfrK   r*   r*   r+   __init__   s    zChunkStream.__init__c                 C   s   d}| j r(| j  \}}}| j| n*| jd}|dd }| j }t|}t|sxtj	sxdt
| d}t||||fS )z.Fetch a new chunk. Returns header information.Nr   r   zbroken PNG file (chunk ))rL   poprK   seekreadtelli32is_cidr   LOAD_TRUNCATED_IMAGESreprSyntaxError)rN   cidposlengthrB   r:   r*   r*   r+   rS      s    
zChunkStream.readc                 C   s   | S rJ   r*   rN   r*   r*   r+   	__enter__   s    zChunkStream.__enter__c                 G   s   |    d S rJ   )close)rN   argsr*   r*   r+   __exit__   s    zChunkStream.__exit__c                 C   s   d  | _ | _d S rJ   )rL   rK   r]   r*   r*   r+   r_      s    zChunkStream.closec                 C   s   | j |||f d S rJ   )rL   appendrN   rZ   r[   r\   r*   r*   r+   push   s    zChunkStream.pushc                 C   s*   t d||| t| d|d ||S )z"Call the appropriate chunk handlerzSTREAM %r %s %sZchunk_ascii)loggerdebuggetattrdecoderc   r*   r*   r+   call   s    zChunkStream.callc              
   C   s   t jr&|d d? d@ r&| || dS zBt|t|}t| jd}||krfdt| d}t|W n> t	j
k
r } zdt| d}t||W 5 d}~X Y nX dS )	zRead and verify checksumr      r   Nr   z(broken PNG file (bad header checksum in rP   z(broken PNG file (incomplete checksum in )r   rW   crc_skiprH   rU   rK   rS   rX   rY   structerror)rN   rZ   rF   Zcrc1Zcrc2r:   er*   r*   r+   crc   s    zChunkStream.crcc                 C   s   | j d dS )zRead checksumr   N)rK   rS   )rN   rZ   rF   r*   r*   r+   rl      s    zChunkStream.crc_skip   IENDc              
   C   sz   g }z|   \}}}W n2 tjk
rH } zd}t||W 5 d }~X Y nX ||krTqv| |t| j| || q|S )Nztruncated PNG file)	rS   rm   rn   OSErrorrp   r   
_safe_readrK   rb   )rN   ZendchunkZcidsrZ   r[   r\   ro   r:   r*   r*   r+   verify   s    zChunkStream.verifyN)rq   )r$   r%   r&   rO   rS   r^   ra   r_   rd   rj   rp   rl   rt   r*   r*   r*   r+   rI      s   rI   c                   @   s   e Zd ZdZedddZdS )iTXtzq
    Subclass of string to allow iTXt chunks to look like strings while
    keeping their extra information

    Nc                 C   s   t | |}||_||_|S )z
        :param cls: the class to use when creating the instance
        :param text: value for this key
        :param lang: language code
        :param tkey: UTF-8 version of the key name
        )str__new__langtkey)clstextrx   ry   rN   r*   r*   r+   rw     s    	ziTXt.__new__)NN)r$   r%   r&   __doc__staticmethodrw   r*   r*   r*   r+   ru      s   ru   c                   @   s6   e Zd ZdZdd ZdddZddd	Zdd
dZdS )PngInfoz<
    PNG chunk container (for use with save(pnginfo=))

    c                 C   s
   g | _ d S rJ   )chunksr]   r*   r*   r+   rO     s    zPngInfo.__init__Fc                 C   s*   ||g}|r| d | j t| dS )a"  Appends an arbitrary chunk. Use with caution.

        :param cid: a byte string, 4 bytes long.
        :param data: a byte string of the encoded data
        :param after_idat: for use with private chunks. Whether the chunk
                           should be written after IDAT

        TN)rb   r   tuple)rN   rZ   rF   
after_idatchunkr*   r*   r+   add  s    

zPngInfo.add c                 C   s   t |ts|dd}t |ts,|dd}t |tsB|dd}t |tsX|dd}|r| d|d | d | d t|  n$| d|d | d | d |  dS )	zAppends an iTXt chunk.

        :param key: latin-1 encodable text key name
        :param value: value for this key
        :param lang: language code
        :param tkey: UTF-8 version of the key name
        :param zip: compression flag

        latin-1strictutf-8   iTXts         s      N)
isinstancebytesencoder   r<   compress)rN   keyvaluerx   ry   zipr*   r*   r+   add_itxt,  s    



 zPngInfo.add_itxtc                 C   s   t |tr"| j|||j|j|dS t |tsbz|dd}W n$ tk
r`   | j|||d Y S X t |tsx|dd}|r| d|d t	
|  n| d|d |  dS )	zAppends a text chunk.

        :param key: latin-1 encodable text key name
        :param value: value for this key, text or an
           :py:class:`PIL.PngImagePlugin.iTXt` instance
        :param zip: compression flag

        )r   r   r      zTXt        tEXtr   N)r   ru   r   rx   ry   r   r   UnicodeErrorr   r<   r   )rN   r   r   r   r*   r*   r+   add_textH  s    	


zPngInfo.add_textN)F)r   r   F)F)r$   r%   r&   r|   rO   r   r   r   r*   r*   r*   r+   r~     s
   

r~   c                       s   e Zd Z fddZdd Zdd Zdd Zd	d
 Zdd Zdd Z	dd Z
dd Zdd Zdd Zdd Zdd Zdd Zdd Zdd  Zd!d" Zd#d$ Zd%d& Zd'd( Zd)d* Z  ZS )+	PngStreamc                    sR   t  | i | _i | _d| _d | _d | _d | _d | _d | _	d | _
d | _d| _d S )Nr   r   r   )superrO   im_infoim_textim_sizeim_modeim_tile
im_paletteim_custom_mimetypeim_n_frames_seq_numrewind_statetext_memoryrM   	__class__r*   r+   rO   i  s    zPngStream.__init__c                 C   s2   |  j |7  _ | j tkr.d| j  d}t|d S )Nz%Too much memory used in text chunks: z>MAX_TEXT_MEMORY)r   MAX_TEXT_MEMORYrA   )rN   Zchunklenr:   r*   r*   r+   check_text_memoryz  s
    
zPngStream.check_text_memoryc                 C   s   | j  | j| jd| _d S )N)infotileseq_num)r   copyr   r   r   r]   r*   r*   r+   save_rewind  s    zPngStream.save_rewindc                 C   s(   | j d | _| j d | _| j d | _d S )Nr   r   r   )r   r   r   r   r]   r*   r*   r+   rewind  s    zPngStream.rewindc                 C   s   t | j|}|d}td|d |  td||  || }|dkr`d| d}t|zt||d d  }W n: tk
r   t j	rd }n Y n t
jk
r   d }Y nX || jd< |S )	Nr   ziCCP profile name %rzCompression method %sr   Unknown compression method z in iCCP chunkr   icc_profile)r   rs   rK   findrf   rg   rY   rD   rA   rW   r<   rn   r   )rN   r[   r\   rB   icomp_methodr:   r   r*   r*   r+   
chunk_iCCP  s$    


zPngStream.chunk_iCCPc                 C   s   t | j|}|dk r,t jr |S d}t|t|dt|df| _z t|d |d f \| _| _	W n t
k
rv   Y nX |d rd| jd	< |d
 rd}t||S )N   zTruncated IHDR chunkr   r   r   	      r   	interlace   zunknown filter category)r   rs   rK   rW   rA   rU   r   _MODESr   
im_rawmode	Exceptionr   rY   rN   r[   r\   rB   r:   r*   r*   r+   
chunk_IHDR  s"     
zPngStream.chunk_IHDRc                 C   s`   d| j kr"d| j d || jfg}n*| jd k	r6d| j d< dd| j || jfg}|| _|| _td S )Nbboxr   Tdefault_imager   )r   r   r   r   r   Zim_idatEOFError)rN   r[   r\   r   r*   r*   r+   
chunk_IDAT  s    


zPngStream.chunk_IDATc                 C   s   t d S rJ   )r   )rN   r[   r\   r*   r*   r+   
chunk_IEND  s    zPngStream.chunk_IENDc                 C   s&   t | j|}| jdkr"d|f| _|S )Nr   r   )r   rs   rK   r   r   rN   r[   r\   rB   r*   r*   r+   
chunk_PLTE  s    

zPngStream.chunk_PLTEc                 C   s   t | j|}| jdkrLt|r@|d}|dkrJ|| jd< q|| jd< nD| jdkrft|| jd< n*| jdkrt|t|dt|df| jd< |S )	Nr   r   r   transparencyr   r   r   r   r   r   )	r   rs   rK   r   _simple_palettematchr   r   i16)rN   r[   r\   rB   r   r*   r*   r+   
chunk_tRNS  s    




 zPngStream.chunk_tRNSc                 C   s$   t | j|}t|d | jd< |S )N     j@gamma)r   rs   rK   rU   r   r   r*   r*   r+   
chunk_gAMA  s    zPngStream.chunk_gAMAc                 C   sB   t | j|}tdt|d  |}tdd |D | jd< |S )Nz>%dIr   c                 s   s   | ]}|d  V  qdS )r   Nr*   ).0eltr*   r*   r+   	<genexpr>  s     z'PngStream.chunk_cHRM.<locals>.<genexpr>Zchromaticity)r   rs   rK   rm   unpackr4   r   r   )rN   r[   r\   rB   Zraw_valsr*   r*   r+   
chunk_cHRM  s    zPngStream.chunk_cHRMc                 C   s>   t | j|}|dk r,t jr |S d}t||d | jd< |S )Nr   zTruncated sRGB chunkr   Zsrgb)r   rs   rK   rW   rA   r   r   r*   r*   r+   
chunk_sRGB  s    zPngStream.chunk_sRGBc           	      C   s   t | j|}|dk r,t jr |S d}t|t|dt|d }}|d }|dkrn|d |d f}|| jd< n|dkr||f| jd	< |S )
Nr   zTruncated pHYs chunkr   r   r   r   
F%u?dpiZaspect)r   rs   rK   rW   rA   rU   r   )	rN   r[   r\   rB   r:   pxpyunitr   r*   r*   r+   
chunk_pHYs  s    zPngStream.chunk_pHYsc                 C   s   t | j|}z|dd\}}W n tk
r>   |}d}Y nX |r|dd}|dd}|dkrh|n|| j|< || j|< | t	| |S )Nr   r       r   r   replaceexif)
r   rs   rK   splitrA   ri   r   r   r   r4   )rN   r[   r\   rB   kvZv_strr*   r*   r+   
chunk_tEXt   s    

zPngStream.chunk_tEXtc                 C   s   t | j|}z|dd\}}W n tk
r>   |}d}Y nX |rN|d }nd}|dkrnd| d}t|zt|dd  }W n: tk
r   t jrd}n Y n tj	k
r   d}Y nX |r|
dd}|
dd	}| | j|< | j|< | t| |S )
Nr   r   r   r   r   z in zTXt chunkr   r   r   )r   rs   rK   r   rA   rY   rD   rW   r<   rn   ri   r   r   r   r4   )rN   r[   r\   rB   r   r   r   r:   r*   r*   r+   
chunk_zTXt4  s4    


zPngStream.chunk_zTXtc                 C   s  t | j| }}z|dd\}}W n tk
r>   | Y S X t|dk rP|S |d |d |dd    }}}z|dd\}}	}
W n tk
r   | Y S X |dkr|dkrzt|
}
W n> tk
r   t jr| Y S  Y n tj	k
 r   | Y S X n|S z4|
dd}|
dd}|	
dd}	|

dd}
W n tk
rT   | Y S X t|
||	 | j|< | j|< | t|
 |S )Nr   r   r   r   r   r   r   )r   rs   rK   r   rA   r4   rD   rW   r<   rn   ri   r   ru   r   r   r   )rN   r[   r\   rrB   r   cfcmrx   Ztkr   r*   r*   r+   
chunk_iTXtW  sB    
 



zPngStream.chunk_iTXtc                 C   s    t | j|}d| | jd< |S )N   Exif  r   )r   rs   rK   r   r   r*   r*   r+   
chunk_eXIf  s    zPngStream.chunk_eXIfc                 C   s   t | j|}|dk r,t jr |S d}t|| jd k	rJd | _td |S t|}|dksb|dkrptd |S || _t|d| j	d< d| _
|S )	Nr   z"APNG contains truncated acTL chunkz4Invalid APNG, will use default PNG image if possibler   l        r   loopz
image/apng)r   rs   rK   rW   rA   r   warningswarnrU   r   r   )rN   r[   r\   rB   r:   n_framesr*   r*   r+   
chunk_acTL  s$    


zPngStream.chunk_acTLc                 C   sB  t | j|}|dk r,t jr |S d}t|t|}| jd krF|dks^| jd k	rj| j|d krjd}t||| _t|dt|d }}t|dt|d	 }}	| j\}
}|| |
ks|	| |krd
}t|||	|| |	| f| j	d< t
|dt
|d }}|dkrd}t|t| d | j	d< |d | j	d< |d | j	d< |S )N   z"APNG contains truncated fcTL chunkr   r   #APNG contains frame sequence errorsr   r   r   r   zAPNG contains invalid framesr         d     duration   disposal   blend)r   rs   rK   rW   rA   rU   r   rY   r   r   r   float)rN   r[   r\   rB   r:   seqwidthheightr   r   Zim_wZim_hZ	delay_numZ	delay_denr*   r*   r+   
chunk_fcTL  s:    

zPngStream.chunk_fcTLc                 C   sv   |dk r,t jr t | j|}|S d}t|t | jd}t|}| j|d kr\d}t||| _| |d |d S )Nr   z"APNG contains truncated fDAT chunkr   r   )	r   rW   rs   rK   rA   rU   r   rY   r   )rN   r[   r\   rB   r:   r   r*   r*   r+   
chunk_fdAT  s    zPngStream.chunk_fdAT)r$   r%   r&   rO   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   __classcell__r*   r*   r   r+   r   h  s*   		#)r   c                 C   s   | d d t kS )Nr   )_MAGIC)r9   r*   r*   r+   _accept  s    r  c                       s   e Zd ZdZdZdd Zedd Zdd Zd	d
 Z	dddZ
dd Zdd Zdd Zdd Zdd Z fddZdd Z  ZS )PngImageFileZPNGzPortable network graphicsc              	   C   s  t | jdsd}t|| j| _d| _g | _t| j| _| j \}}}z| j	|||}W nh t
k
rx   Y qY nR tk
r   td||| t| j|}|dd  r| j||f Y nX | j|| q<| jj| _| jj| _| jj| _d | _| jj| _| jj| _| jjpd| _| j dd| _!| jj"rV| jj"\}}t#$||| _%|d	krl|d
 | _&n|| _&| jjd k	rd| _'| j(  | j&| _)| j* | _+| j!r|  jd7  _| ,d | jdk| _-d S )Nr   znot a PNG filer   %r %s %s (unknown)r   r   r   F   fdATr   ).r  rK   rS   rY   _fp_PngImageFile__frameprivate_chunksr   pngrj   r   r6   rf   rg   r   rs   islowerrb   rp   r   moder   _sizer   r   _textr   r   r   Zcustom_mimetyper   r   getr   r   r   rawpalette_PngImageFile__prepare_idatZ!_close_exclusive_fp_after_loadingr   _PngImageFile__rewind_idatrT   _PngImageFile__rewind_seekis_animated)rN   r:   rZ   r[   r\   rB   rawmoderF   r*   r*   r+   _open  sR    	








zPngImageFile._openc                 C   sD   | j d kr>| jr&| j}| | jd  |   | jr>| | | j S )Nr   )r  r  r  rR   r   load)rN   framer*   r*   r+   r{     s    

zPngImageFile.textc                 C   s^   | j dkrd}t|| j | jd d d  | j  | j  | jrT| j   d| _ dS )zVerify PNG fileNz)verify must be called directly after openr   r   r   )rK   RuntimeErrorrR   r   r  rt   r_   Z_exclusive_fp)rN   r:   r*   r*   r+   rt   ,  s    



zPngImageFile.verifyc                 C   s   |  |sd S || jk r$| dd | j}t| jd |d D ]N}z| | W q> tk
r } z| | d}t||W 5 d }~X Y q>X q>d S )Nr   Tr   zno more images in APNG file)Z_seek_checkr  r  ranger   rR   )rN   r  Z
last_framefro   r:   r*   r*   r+   rR   =  s    


zPngImageFile.seekFc              	   C   s  |dkr|rZ| j | j | j  | j| _d | _| jr>d | _| jj	| _
| jj| _| j | _d | _d | _| j
dd| _| j
d| _| j
d| _| j
d| _d| _n|| jd krd| }t||   | jr| j| j| j | j | _| j | _| jrt| j| j d| _d}| jd	 z| j \}}}W n" tjtfk
rb   Y qHY nX |d
krzd}t ||dkr|rd}t|d}z| j!||| W n t"k
r   Y qHY nz t k
r   |dkr|d	8 }|r|| _Y qHt| j| Y n4 t#k
rB   t$%d||| t| j| Y nX q || _| jj| _| j
d| _| j
d| _| j
d| _| jst | jd kr| jt&j'krt&j(| _| jt&j'kr| j | _| )| j| j| _n<| jt&j(krt*j+,| j-| j.| _| )| j| j| _nd | _d S )Nr   r   Fr   r   r   r   zcannot seek to frame r   rq   zNo more images in APNG file   fcTLzAPNG missing frame dataTr  r  )/r  rR   r  r  r   r  r  impyaccessr   r   r   r   rK   _prev_imdisposer  r   Z
dispose_opblend_opdispose_extentr  rA   r  paster   r   rs   rS   rm   rn   rY   r   rj   UnicodeDecodeErrorr6   rf   rg   r#   r)   r(   _cropr   corefillr
  size)rN   r  r   r:   Zframe_startrZ   r[   r\   r*   r*   r+   r  L  s    









zPngImageFile._seekc                 C   s   | j S rJ   )r  r]   r*   r*   r+   rT     s    zPngImageFile.tellc                 C   s0   | j dr| jd | _| j| _tj|  dS )z"internal: prepare to read PNG filer   )r   N)r   r  Zdecoderconfigr  _PngImageFile__idatr   load_preparer]   r*   r*   r+   r*    s    zPngImageFile.load_preparec                 C   s   | j dkr| jd | j \}}}|dkrB| j||| dS |dkrz| j||| W n tk
rr   Y nX |d | _ q || _ q |dkr| j }nt|| j }| j | | _ | j|S )zinternal: read more image datar   r   )   IDATs   DDATr  r   r  )r)  rK   rS   r  rd   rj   r   min)rN   
read_bytesrZ   r[   r\   r*   r*   r+   	load_read  s$    
zPngImageFile.load_readc              	   C   s  | j dkr| j| j  | jd z| j \}}}W n  tjtfk
rX   Y qHY nX |dkrhqHn(|dkr| jrd| _| j	||| qHz| j
||| W q tk
r   Y qHY q tk
r   |dkr|d8 }t| j| Y q tk
rD   td||| t| j|}|dd  r@| j||d	f Y qX q| jj| _| jsl| j  d
| _nT| jr| jtjkr| | j| j}| j|| j| d | j| _| j!rd
| _!d
S )z%internal: finished reading image datar   r   rq   r  r  r  r   r   TNr   )"r)  rK   rS   r  rm   rn   rY   r  r  rd   rj   r$  r   r   rs   r6   rf   rg   r	  r  rb   r   r  r_   r  r!  r,   r.   r%  r  r"  r#  convertr  )rN   rZ   r[   r\   rB   updatedr*   r*   r+   load_end  sP    



  zPngImageFile.load_endc                 C   s6   d| j kr|   d| j kr*d| j kr*d S |   S )Nr   zRaw profile type exif)r   r  getexifZ_get_merged_dictr]   r*   r*   r+   _getexif  s
    
zPngImageFile._getexifc                    s   d| j kr|   t  S )Nr   )r   r  r   r2  r]   r   r*   r+   r2    s    
zPngImageFile.getexifc                 C   s   d| j kr| | j d S i S )z
        Returns a dictionary containing the XMP tags.
        Requires defusedxml to be installed.

        :returns: XMP tags in a dictionary.
        zXML:com.adobe.xmp)r   Z_getxmpr]   r*   r*   r+   getxmp  s    	zPngImageFile.getxmp)F)r$   r%   r&   formatformat_descriptionr  propertyr{   rt   rR   r  rT   r*  r.  r1  r3  r2  r4  r   r*   r*   r   r+   r    s   E

]	!/r  )r       )L;1r8  )r   s    )r   s    )r   s    )r   s   )r   s    )r   s   )r   s   )r   s   )r   s   )r   s   )r   s   )r   r9  r   r   r   r   r   zI;16r   r   r   r   r   r   c                 G   sJ   d |}| tt||  | | t|t|}| t| dS )z'Write a PNG chunk (including CRC field)r   N)joinwriteo32r4   rH   rK   rZ   rF   rp   r*   r*   r+   putchunk6  s
    

r>  c                   @   s   e Zd Zdd Zdd ZdS )_idatc                 C   s   || _ || _d S rJ   )rK   r   )rN   rK   r   r*   r*   r+   rO   D  s    z_idat.__init__c                 C   s   |  | jd| d S )Nr+  )r   rK   rN   rF   r*   r*   r+   r;  H  s    z_idat.writeNr$   r%   r&   rO   r;  r*   r*   r*   r+   r?  A  s   r?  c                   @   s   e Zd Zdd Zdd ZdS )_fdatc                 C   s   || _ || _|| _d S rJ   )rK   r   r   )rN   rK   r   r   r*   r*   r+   rO   O  s    z_fdat.__init__c                 C   s*   |  | jdt| j| |  jd7  _d S )Nr  r   )r   rK   r<  r   r@  r*   r*   r+   r;  T  s    z_fdat.writeNrA  r*   r*   r*   r+   rB  L  s   rB  c                 C   s  | j d| jdd}| j d| jdd}| j d| jdtj}| j d| jdtj}	|rtt|}
nt| g|}
g }d}|
D ]}t	
|D ]}|j|kr| }n$|dkr|j|| jd}n
||}| j  }t|ttfr|| |d< t|ttfr|| |d< t|	ttfr:|	| |d< |d7 }|rz|d	 }|d
 d}|d
 d}|tjkrt|dk rtj}|tjkr|d  }tjd| jd}|d }|r||}n
d| j }||| n"|tjkr|d d }n|d }t|d|d}| }|s~||dkr~||dkr~t|ttfr|d
 d  |d 7  < qnd }||||d qq||dtt|t| |rt !| t"||dd| j d|fg d}t#|D ]2\}}|d }|d sd|j }n|d }||}|j}|d
 }t$t%|d|}|d|}|d|	}||dt|t|d t|d t|d t|d t&|t&dt'|t'| |d7 }|dkr|st !|t"||dd|j d|fg n0t(|||}t !||dd|j d|fg |j)}qd S )Nr   r   r   r   r   r   )r  r   encoderinfor   r  r   )r   r   r   r   r   r   r   )r  r   rD  s   acTLr   r  r   )*rD  r  r   r#   r'   r,   r-   	itertoolschainr   Iteratorr
  r   r/  r  r   listr   r)   r4   r(   r   r&  r'  r(  Zcropr#  r   Zsubtract_moduloZgetbboxrb   r<  r   _saver?  	enumerateintroundo16r   rB  r   )r  rK   r   r  r   append_imagesr   r   r   r   rG  Z	im_framesZframe_countim_seqim_framerD  previousZprev_disposalZ
prev_blendZbase_imr   r   deltar   r  Z
frame_datar(  Zframe_durationZframe_disposalZframe_blendZfdat_chunksr*   r*   r+   _write_multiple_framesY  s    





 
$





rT  c                 C   s   t | ||dd d S )NT)save_all)rJ  )r  rK   filenamer*   r*   r+   	_save_all  s    rW  Fc           $   
   C   s  |r| j d| jd}t }| j dg }|r>t|}nt| g|}|D ] }	t|	D ]}
||
j	 q^qPdD ]}||krv qqv|
 }n| j	}|dkr,d| j krtd| j d > d}n.| jrttt| j d d dd}nd}|d	kr,|d
kr
d}n|dkrd
}nd}| d| }| j dd| j dd| j dd| j ddf| _zt| \}}W n: tk
r } zd| d}t||W 5 d }~X Y nX |t ||dt| jd t| jd |ddd dddddg}| j d| jd}|r8d}|d  t| }||d!| |d | j d"}|rd#d$d%d&g}|jD ]}|d d
 \}}||kr|| |||| nH||kr|||| n0|dd
  r\|d
d }|s\|||| q\| j	dkr,|d }| jd'd | }t||k r |d7 }q||d(| | j d)| jd)d }|sT|dkr8| j	dkr|}t|t r||d*|d |  n0tdtd+|}d,| d }||d*|d |  n~| j	d-krtdtd.|}||d*t!| nP| j	d'kr|\}} }!||d*t!|t!|  t!|!  nd)| j krzd/}t|nB| j	dkrz| j" d0krz| jd0d1}|}||d*|d |  | j d2}"|"r||d3tt#|"d d4 d5 tt#|"d d4 d5 d6 |rd7d8g}|jD ]6}|d d
 \}}||kr|| |||| q| j d9}#|#r^t|#t$j%r:|#&d:}#|#'d;rR|#d<d  }#||d=|# |rxt(| ||||| n$t)*| t+||d>d?| j d|fg |r|jD ]F}|d d
 \}}|dd
  r|d
d }|r|||| q||d@d t,|dAr|-  d S )BNr   rO  )r   r   r   r   bitsr      r    r   r   r   ;optimizeFZcompress_levelrC  compress_type
dictionaryr   zcannot write mode z as PNGs   IHDRr   r   s   cHRMs   gAMAs   sBITs   sRGBs   tIMEr   s   ICC Profiler   s   iCCPZpnginfos   sPLTr   r   r   r   s   PLTEr   s   tRNS      r   i  z%cannot use transparency for this moder   Ar   s   pHYsr   g      ?   s   bKGDs   hISTr   r   r   r!   s   eXIfr   r   rq   flush).rD  r  r   setrF  rG  r   rH  r   r
  rQ   r,  r  maxr4   ZgetdataZencoderconfig	_OUTMODESKeyErrorrr   r;  r   r<  r(  r<   r   remover   r	  r  Z
getpaletter   r   rN  ZgetpalettemoderL  r   ZExiftobytesr3   rT  r   rJ  r?  hasattrrb  )$r  rK   rV  r   rU  r   modesrO  rG  rP  rQ  r
  colorsrX  r  ro   r:   r   Ziccr7   rF   r   Zchunks_multiple_allowedZ
info_chunkrZ   r   Zpalette_byte_numberZpalette_bytesr   Zalpha_bytesalphaZredZgreenZbluer   r   r*   r*   r+   rJ    s    



$









"




$
rJ  c                 K   sB   G dd d}dd }| }z|| _ t| |d| W 5 | ` X |jS )z4Return a list of PNG chunks representing this image.c                   @   s    e Zd Zg Zdd Zdd ZdS )zgetchunks.<locals>.collectorc                 S   s   d S rJ   r*   r@  r*   r*   r+   r;    s    z"getchunks.<locals>.collector.writec                 S   s   | j | d S rJ   )rF   rb   )rN   r   r*   r*   r+   rb     s    z#getchunks.<locals>.collector.appendN)r$   r%   r&   rF   r;  rb   r*   r*   r*   r+   	collector  s   rm  c                 W   s0   d |}tt|t|}| |||f d S )Nr   )r:  r<  rH   rb   r=  r*   r*   r+   rb     s    
zgetchunks.<locals>.appendN)rD  rJ  rF   )r  paramsrm  rb   rK   r*   r*   r+   	getchunks  s    	ro  z.pngz.apngz	image/png)r   )@rF  loggingrerm   r   r<   r8   r   r   r   r   r   r   r   _binaryr	   r   r
   rU   r   r   rN  r   r<  Z
_deprecater   	getLoggerr$   rf   compiler   rV   r   r   r   Z	SAFEBLOCKr?   r   r#   r,   r;   rD   rH   rI   rv   ru   r~   r   r  r  re  r>  r?  rB  rT  rW  rJ  ro  Zregister_openr5  Zregister_saveZregister_save_allZregister_extensionsZregister_mimer*   r*   r*   r+   <module>"   s   

	
\T  e  T} H