o
    eF                     @   sT  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$Zeejee eeje eejd% eejd& ed'e eejee eeje eejd( eejd& dS )*    N   )Image	ImageFileImagePalette)i16le)i32leo8)o16le)o32le)PzP;1)r   zP;4)r   r   )RGBBGR;15)r   BGR)r   BGRX)r                   c                 C   s   | d d dkS )N      BM prefixr   r   BD:\Projects\ConvertPro\env\Lib\site-packages\PIL/BmpImagePlugin.py_accept3   s   r   c                 C   s   t | dv S )N)   (   @   l   |   )i32r   r   r   r   _dib_accept7      r#   c                   @   sX   e Zd ZdZdZdZdddddd	d
Ze D ]	\ZZ	e	e
 e< qdddZdd ZdS )BmpImageFilez0Image plugin for the Windows Bitmap format (BMP)Windows BitmapBMPr   r   r      r      )RAWRLE8RLE4	BITFIELDSZJPEGZPNGc              
   C   s  | j j| j j}}|r|| t|ddd}t| j |d d }|d dkrOt|d|d< t|d|d	< t|d|d
< t|d|d< | j|d< d|d< n|d dv r|d dk|d< |d rddnd|d< t|d|d< |d sxt|dndt|d |d	< t|d|d
< t|d|d< t|d|d< t|d|d< t|dt|df|d< t|d|d< d|d< td d! |d D | j	d"< |d | j
krt|d#krtg d$D ]\}}t|d%|d  ||< qnd|d&< d'D ]
}t|d||< q|d( |d) |d* f|d+< |d( |d) |d* |d& f|d,< n
td-|d  d.|d |d	 f| _|ddr4|d nd|d > |d< |d/|d  krT|d dkrT|d|d  7 }t|d d0\| _}	| jd1u rotd2|d  d.d3}
|d | j
krg d4d5gd6d7gd8}d9d:d;d<d=d=d>d?d@dA	}|d |v r|d dBkr|d, ||d  v r||d |d, f }	dC|	v rd<n| j| _nW|d dDv r|d+ ||d  v r||d |d+ f }	n:tdEtdE|d | jkr|d dBkr|dFkrdG\}	| _n|d | j| jfv rdH}
n
tdI|d  d.| jdJkrd|d   k r*dKks5n tdL|d  d.|d }|||d  }dM}|d dkrLdNntt|d }t|D ]\}}||| || d  }|t|d krsdO}qX|r|d dkrdPndQ| _| j}	ndJ| _t|dkrd9nd>|| _|d | j	d< |	g}|
dHkr||d | jk n||d |d  dR d? dS@  ||d  |
dd|d |d	 f|p| j  t|fg| _d1S )Tz 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   r0   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_maska_mask$   rF   )rC   rD   rE   rC   rD   rE   Zrgb_maskZ	rgba_maskzUnsupported BMP header type ()   )NNNzUnsupported BMP pixel depth (raw)      r7   r         ~ rL   rM   r   rO   rL   rM   r7   r7   rM   rL   rO   rL   rM   r7   rO   r   r   r   r   rL   rM   r7   i   i     i |  i  rV   )r   r   r   r   ZXBGRZABGRRGBABGRAr   zBGR;16r   )	)r   rK   )r   rN   )r   rP   )r   rQ   )r   rR   )r   rS   )r   rT   )r   rU   )r   rW   r   A)r   r   z Unsupported BMP bitfields layout   )rY   rX   bmp_rlezUnsupported BMP compression (r   i   zUnsupported BMP Palette size (Tr   r7   F1LrV   )fpreadseekr"   r   
_safe_readi16r*   tupleinfor-   len	enumerateOSError_sizegetBIT2MODEmoder+   r,   listranger	   r   rJ   paletteappendtellZtile)selfheaderoffsetrb   rc   	file_infoZheader_dataidxmaskZraw_modeZdecoder_nameZ	SUPPORTEDZ
MASK_MODESpaddingrq   Z	greyscaleindicesindvalrgbargsr   r   r   _bitmapJ   s   



 

"
zBmpImageFile._bitmapc                 C   s6   | j d}t|stdt|d}| j|d dS )z-Open file, check magic number and read headerrI   zNot a BMP filer8   )rv   N)ra   rb   r   SyntaxErrorr"   r   )rt   Z	head_datarv   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    
 Cr%   c                   @   s   e Zd ZdZdd ZdS )BmpRleDecoderTc                 C   s  | j d }t }d}t|| jj| jj k r*| jd}| jd}|r'|s)n|d }|rt|| | jjkr@td| jj| }|rit	|d d? }t	|d d@ }	t
|D ]}
|
d dkrc||7 }qV||	7 }qVn||| 7 }||7 }n|d dkrt|| jj dkr|d7 }t|| jj dksd}n|d dkrn|d dkr| jd}t|dk rn{| jd\}}|d||| jj   7 }t|| jj }nR|r|d d }| j|}|D ]}|t	|d? 7 }|t	|d@ 7 }qn|d }| j|}||7 }t||k rn$||d 7 }| j d dkr| jdtj t|| jj| jj k s| jdkr2dnd}| t||d| j d	 f d
S )Nr   r   r      r       r_   r   r.   )r.   r   )r   	bytearrayrh   stateZxsizeZysizefdrb   maxr	   rp   rs   rc   osSEEK_CURrn   Z
set_as_rawbytes)rt   bufferZrle4datar?   ZpixelsbyteZ
num_pixelsZfirst_pixelZsecond_pixelindexZ
bytes_readrightupZ
byte_countZ	byte_readrawmoder   r   r   decode  sn   



;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   h  r$   zDibImageFile._openN)r   r   r   r   r   r   r   r   r   r   r   c  s    r   )r^   r   r   )r_   r      )r   r   r   )r   r   r   )rY   r   r   )r^   r_   r   r   rX   c                 C   s   t | ||d d S )NF)_save)imra   filenamer   r   r   	_dib_savez  s   r   Tc              
   C   s  z
t | j \}}}W n ty  } z
td| j d|d }~ww | j}|dd}	ttdd |	}
| jd | d d	 d
 d@ }d}|| jd  }| jdkr[d	dd dD }n'| jdkrmd	dd t
dD }n| jdkr| jdd}t|d }nd }|rd| |d  }|| }|dkrtd|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 S )Nr=   g      ?)int)r?   r   r   r   <lambda>  s    z_save.<locals>.<lambda>r   r6   r   r(   r`   r   r   r^       c                 s       | ]	}t |d  V  qdS r   Nr   r>   ir   r   r   r@         z_save.<locals>.<genexpr>r]   r_   c                 s   r   r   r   r   r   r   r   r@     r   r   r   r   r   r   rI   l    z)File size is too large for the BMP formatr   r   rJ   r   r.   )SAVErn   KeyErrorrj   Zencoderinforl   rf   mapsizejoinrp   r   Z
getpaletterh   
ValueErrorwriteo32o16r   r   )r   ra   r   Zbitmap_headerr   r4   r<   erg   rA   ppmZstrideru   imagerq   rv   	file_sizer   r   r   r   ~  sz   




	

(r   z.bmpz	image/bmpr\   z.dib)T)r    r   r   r   _binaryr   re   r   r"   r	   r
   r   r   r   rm   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    \J	
D