U
    EvfEE                     @  s`  d dl mZ d dlZddl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dddddZ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Zdddddd Zd!d" Zd*d$d%Zeejee eeje eejd& eejd' e d(e eejee eeje eejd) eejd' dS )+    )annotationsN   )Image	ImageFileImagePalette)i16le)i32leo8)o16le)o32le)PzP;1)r   zP;4)r   r   )RGBBGR;15)r   BGR)r   BGRX)r                   c                 C  s   | d d dkS )N      BM prefixr   r   6/tmp/pip-unpacked-wheel-ciywl2yd/PIL/BmpImagePlugin.py_accept3   s    r   c                 C  s   t | dkS )N)   (   @   l   |   )i32r   r   r   r   _dib_accept7   s    r$   c                   @  sX   e Zd ZdZdZdZdddddd	d
Ze D ]\ZZ	e	e
 e< q.dddZdd ZdS )BmpImageFilez0Image plugin for the Windows Bitmap format (BMP)Windows BitmapZBMPr   r   r      r      )RAWRLE8RLE4	BITFIELDSZJPEGZPNGc              
   C  s  | j j| j j }}|r|| t|ddd}t| j |d d }|d dkrt|d|d< t|d|d	< t|d|d
< t|d|d< | j|d< d|d< n|d dkr8|d dk|d< |d rdnd|d< t|d|d< |d st|dndt|d |d	< t|d|d
< t|d|d< t|d|d< t|d|d< t|dt|df|d< t|d|d< d|d< td d! |d D | j	d"< |d | j
krPt|d#krtd$d%d&d'gD ] \}}t|d(|d  ||< qn$d|d'< d)D ]}t|d||< q|d$ |d% |d& f|d*< |d$ |d% |d& |d' f|d+< nd,|d  d-}	t|	|d |d	 f| _|ddrx|d n
d|d > |d< |d.|d  kr|d dkr|d|d  7 }t|d d/\| _}
| jd0krd1|d  d-}	t|	d2}|d | j
krd3d4d5d6d7d8gd9gd:d;gd<}d=d>d?d@dAdAdBdCdDdE	}|d |kr|d dFkr|d+ ||d  kr||d |d+ f }
dG|
krd@n| j| _nF|d dHkr|d* ||d  kr||d |d* f }
ndI}	t|	ndI}	t|	nh|d | jkr$|d dFkrX|dJkrXdK\}
| _n4|d | j| jfkr@dL}ndM|d  d-}	t|	| jdNkrdd|d   k rdOksn dP|d  d-}	t|	n|d }|||d  }dQ}|d dkrdRntt|d }t|D ]8\}}||| || d  }|t|d krdS}q|rB|d dkr4dTndU| _| j}
n"dN| _t|dkrZd=ndB|| _|d | j	d< |
g}|dLkr||d | jk n"||d |d  dV d? dW@  ||d  |dd|d |d	 f|p| j  t|fg| _d0S )Xz Read relevant info about the BMPr   )header_size	directionr.   r   r   widthr   heightZplanes   bitscompressionr'   Zpalette_padding)r   r    r!   r"         Zy_flipr   r/   l        r   
   r   	data_size   r   Zpixels_per_meter   colorsc                 s  s   | ]}|d  V  qdS )o_C@Nr   .0xr   r   r   	<genexpr>v   s     z'BmpImageFile._bitmap.<locals>.<genexpr>dpi4   r_maskg_maskb_maskZa_mask$   )rC   rD   rE   Zrgb_maskZ	rgba_maskzUnsupported BMP header type ()   )NNNzUnsupported BMP pixel depth (raw      r6   r         ~ rK   rL   r   rN   rK   rL   r6   r6   rL   rK   rN   rK   rL   r6   rN   r   r   r   r   rK   rL   r6   i   i     i |  i  rU   )r   r   r   r   ZXBGRZABGRRGBABGRAr   zBGR;16r   )	)r   rJ   )r   rM   )r   rO   )r   rP   )r   rQ   )r   rR   )r   rS   )r   rT   )r   rV   r   A)r   r   z Unsupported BMP bitfields layout   )rX   rW   bmp_rlezUnsupported BMP compression (r   i   zUnsupported BMP Palette size (Tr   r6   F1LrU   )fpreadseekr#   r   
_safe_readi16r)   tupleinfor,   len	enumerateOSError_sizegetBIT2MODE_modemoder*   r+   listranger
   r   rI   paletteappendtellZtile)selfheaderoffsetra   rb   	file_infoZheader_dataidxmaskmsgZraw_modeZdecoder_nameZ	SUPPORTEDZ
MASK_MODESpaddingrq   Z	grayscaleindicesindvalZrgbargsr   r   r   _bitmapJ   s   





 





 
"zBmpImageFile._bitmapc                 C  s:   | j d}t|s d}t|t|d}| j|d dS )z-Open file, check magic number and read headerrH   zNot a BMP filer7   )rv   N)r`   ra   r   SyntaxErrorr#   r   )rt   Z	head_datarz   rv   r   r   r   _open  s    
zBmpImageFile._openN)r   r   )__name__
__module____qualname____doc__format_descriptionformatZCOMPRESSIONSitemskvvarsr   r   r   r   r   r   r%   >   s   
 Hr%   c                   @  s   e Zd ZdZdd ZdS )BmpRleDecoderTc                 C  sx  | j d }t }d}| jj| jj }t||k rD| jd}| jd}|rR|sVqD|d }|r|| | jjkrtd| jj| }|rt	|d d? }	t	|d d@ }
t
|D ]"}|d dkr||	7 }q||
7 }qn||| 7 }||7 }q$|d dkr t|| jj dkr|d7 }qd}q$|d dkr4qDq$|d dkr| jd}t|dk r`qD| jd\}}|d||| jj   7 }t|| jj }q$|r|d d }| j|}|D ]&}|t	|d? 7 }|t	|d@ 7 }qn|d }| j|}||7 }t||k rqD||d 7 }| j d dkr$| jdtj q$| jdkrTdnd}| t||d| j d	 f d
S )Nr   r   r      r       r^   r   r-   )r-   r   )r   	bytearraystateZxsizeZysizerg   fdra   maxr
   rp   rs   rb   osSEEK_CURrn   Z
set_as_rawbytes)rt   bufferZrle4datar?   Zdest_lengthZpixelsbyteZ
num_pixelsZfirst_pixelZsecond_pixelindex
bytes_readrightZupZ
byte_countZ	byte_readrawmoder   r   r   decode"  sh    



zBmpRleDecoder.decodeN)r   r   r   Z	_pulls_fdr   r   r   r   r   r     s   r   c                   @  s   e Zd ZdZdZdd ZdS )DibImageFileZDIBr&   c                 C  s   |    d S )N)r   )rt   r   r   r   r   n  s    zDibImageFile._openN)r   r   r   r   r   r   r   r   r   r   r   j  s   r   )r]   r   r   )r^   r      )r   r   r   )r   r   r   )rX   r   r   )r]   r^   r   r   rW   c                 C  s   t | ||d d S )NF)_save)imr`   filenamer   r   r   	_dib_save  s    r   Tc              
   C  s&  zt | j \}}}W n: tk
rN } zd| j d}t||W 5 d }~X Y nX | j}	|	dd}
tdd |
D }| jd | d d	 d
 d@ }d}|| jd  }| jdkrddd dD }nP| jdkrddd t	dD }n,| jdkr| j
dd}t|d }nd }|rjd| |d  }|| }|dkrHd}t||dt| td t|  |t|t| jd  t| jd  td t| td t| t|d  t|d  t| t|  |d|d   |r|| t| |dd| j d||d ffg d S )!Nzcannot write mode z as BMPrA   )`   r   c                 s  s   | ]}t |d  d V  qdS )r<   g      ?N)intr=   r   r   r   r@     s     z_save.<locals>.<genexpr>r   r5   r   r'   r_   r   r   r]       c                 s  s   | ]}t |d  V  qdS r   Nr	   r>   ir   r   r   r@     s     r\   r^   c                 s  s   | ]}t |d  V  qdS r   r	   r   r   r   r   r@     s     r   r   r   r   r   rH   l    z)File size is too large for the BMP formatr   r   rI   )r   r   r-   )SAVErn   KeyErrorri   Zencoderinfork   re   sizejoinrp   r   Z
getpaletterg   
ValueErrorwriteo32o16r   r   )r   r`   r   Zbitmap_headerr   r3   r;   erz   rf   rA   ppmZstrideru   imagerq   rv   	file_sizer   r   r   r     sz    




	

r   z.bmpz	image/bmpr[   z.dib)T)!
__future__r   r    r   r   r   _binaryr   rd   r   r#   r
   r   r   r   r   rl   r   r$   r%   Z	PyDecoderr   r   r   r   r   Zregister_openr   Zregister_saveZregister_extensionZregister_mimeZregister_decoderr   r   r   r   <module>   sJ    bK	
F