o
    ûòTi®<  ã                   @   sX  d Z ddlZddlZddlmZ ddlmZ ddlmZm	Z	 G dd„ deƒZ
G d	d
„ d
eƒZG dd„ deƒZdd„ Zd*dd„Zdd„ Zdd„ ZG dd„ deƒZdd„ ZG dd„ de	j	ƒZG dd„ de	jƒZG dd„ deƒZG d d!„ d!eƒZG d"d#„ d#e	jƒZd$d%„ Ze ejee¡ e ejd&¡ e d'e¡ e d(e¡ e  eje¡ e !d)e¡ dS )+aÑ  
Blizzard Mipmap Format (.blp)
Jerome Leclanche <jerome@leclan.ch>

The contents of this file are hereby released in the public domain (CC0)
Full text of the CC0 license:
  https://creativecommons.org/publicdomain/zero/1.0/

BLP1 files, used mostly in Warcraft III, are not fully supported.
All types of BLP2 files used in World of Warcraft are supported.

The BLP file structure consists of a header, up to 16 mipmaps of the
texture

Texture sizes must be powers of two, though the two dimensions do
not have to be equal; 512x256 is valid, but 512x200 is not.
The first mipmap (mipmap #0) is the full size image; each subsequent
mipmap halves both dimensions. The final mipmap should be 1x1.

BLP files come in many different flavours:
* JPEG-compressed (type == 0) - only supported for BLP1.
* RAW images (type == 1, encoding == 1). Each mipmap is stored as an
  array of 8-bit values, one per pixel, left to right, top to bottom.
  Each value is an index to the palette.
* DXT-compressed (type == 1, encoding == 2):
- DXT1 compression is used if alpha_encoding == 0.
  - An additional alpha bit is used if alpha_depth == 1.
  - DXT3 compression is used if alpha_encoding == 1.
  - DXT5 compression is used if alpha_encoding == 7.
é    N)ÚIntEnum)ÚBytesIOé   )ÚImageÚ	ImageFilec                   @   s   e Zd ZdZdS )ÚFormatr   N)Ú__name__Ú
__module__Ú__qualname__ÚJPEG© r   r   úR/var/www/html/evchargy.com/venv/lib/python3.10/site-packages/PIL/BlpImagePlugin.pyr   (   s    r   c                   @   ó   e Zd ZdZdZdZdS )ÚEncodingr   é   é   N)r   r	   r
   ÚUNCOMPRESSEDÚDXTZUNCOMPRESSED_RAW_BGRAr   r   r   r   r   ,   ó    r   c                   @   r   )ÚAlphaEncodingr   r   é   N)r   r	   r
   ÚDXT1ÚDXT3ÚDXT5r   r   r   r   r   2   r   r   c                 C   s*   | d? d@ d> | d? d@ d> | d@ d> fS )Né   é   r   é   é?   r   r   )Úir   r   r   Ú
unpack_5658   s   *r   Fc              	   C   s´  t | ƒd }tƒ tƒ tƒ tƒ f}t|ƒD ]Ã}|d }t d| |¡\}}}t|ƒ\}	}
}t|ƒ\}}}tdƒD ] }tdƒD ]™}|d@ }|d? }d}|dkrU|	|
|}}}nh|dkrb|||}}}n[|dkr–||krƒd|	 | d }d|
 | d }d| | d }n:|	| d }|
| d }|| d }n'|dkr½||kr·d| |	 d }d| |
 d }d| | d }nd	\}}}}|rË||  ||||g¡ q<||  |||g¡ q<q6q|S )
úE
    input: one "row" of data (i.e. will produce 4*width pixels)
    é   z<HHIé   r   r   éÿ   r   r   )r   r   r   r   ©ÚlenÚ	bytearrayÚrangeÚstructÚunpack_fromr   Úextend)ÚdataÚalphaÚblocksÚretÚblockÚidxÚcolor0Úcolor1ÚbitsÚr0Úg0Úb0Úr1Úg1Úb1Újr   ÚcontrolÚaÚrÚgÚbr   r   r   Údecode_dxt1<   sH   áÿ"r@   c              	   C   sÆ  t | ƒd }tƒ tƒ tƒ tƒ f}t|ƒD ]Ì}|d }| ||d … }t d|¡}t d|d¡\}}t d|d¡\}t|ƒ\}	}
}t|ƒ\}}}tdƒD ]”}d}tdƒD ]‹}d| | d	 }|| }|rjd}|dL }nd
}|dM }|d9 }|d	d| |  ? d@ }|dkr|	|
|}}}nF|dkrš|||}}}n9|d	kr·d	|	 | d }d	|
 | d }d	| | d }n|dkrÓd	| |	 d }d	| |
 d }d	| | d }||  ||||g¡ qSqKq|S )r    é   z<8Bú<HHr!   ú<Ié   r"   Fr   Té   é   r   r   r   r$   )r+   r-   r.   r/   r0   r3   r1   r2   Úcoder4   r5   r6   r7   r8   r9   r:   Úhighr   Úalphacode_indexr<   Ú
color_coder=   r>   r?   r   r   r   Údecode_dxt3s   sL   
æþrK   c              	   C   s¬  t | ƒd }tƒ tƒ tƒ tƒ f}t|ƒD ]>}|d }| ||d … }t d|¡\}}t d|d¡}|d |d d> B |d d> B |d d	> B }|d
 |d d> B }	t d|d¡\}
}t d|d¡\}t|
ƒ\}}}t|ƒ\}}}tdƒD ]Ý}tdƒD ]Ö}dd| |  }|dkr|	|? d@ }n|dkrŸ|	d? |d> d@ B }n||d ? d@ }|d
kr®|}n6|dkrµ|}n/||krÈd| | |d |  d }n|dkrÏd
}n|dkrÖd}nd| | |d |  d }|dd| |  ? d@ }|d
krý|||}}}nI|dkr|||}}}n;|dkr)d| | d }d| | d }d| | d }n|dkrFd| | d }d| | d }d| | d }||  ||||g¡ q{quq|S )zG
    input: one "row" of data (i.e. will produce 4 * width pixels)
    rA   z<BBz<6Br   r   r!   r"   r   é   r   r   rB   rC   rD   r   rE   é   r#   r$   )r+   r-   r.   r/   r0   Za0Za1r3   Z
alphacode1Z
alphacode2r1   r2   rG   r4   r5   r6   r7   r8   r9   r:   r   rI   Z	alphacoder<   rJ   r=   r>   r?   r   r   r   Údecode_dxt5¨   sb   ,


Ùÿ*rN   c                   @   s   e Zd ZdS )ÚBLPFormatErrorN)r   r	   r
   r   r   r   r   rO   î   s    rO   c                 C   s   | d d… dv S )Nr"   ©ó   BLP1ó   BLP2r   )Úprefixr   r   r   Ú_acceptò   s   rT   c                   @   s    e Zd ZdZdZdZdd„ ZdS )ÚBlpImageFilez 
    Blizzard Mipmap Format
    ÚBLPzBlizzard Mipmap Formatc                 C   s¼   | j  d¡| _| j  dtj¡ t d| j  d¡¡\| _| j  dtj¡ t d| j  d¡¡| _	| jdv r9| j 
¡ }nd	t| jƒ› }t|ƒ‚| jrJd
nd| _|d| j d| jddffg| _d S )Nr"   r   ú<br   r   ú<IIr!   rP   zBad BLP magic ÚRGBAÚRGB©r   r   r   )ÚfpÚreadÚmagicÚseekÚosÚSEEK_CURr(   ÚunpackÚ_blp_alpha_depthÚ_sizeÚdecodeÚreprrO   Ú_modeÚsizeÚmodeÚtile)ÚselfÚdecoderÚmsgr   r   r   Ú_openþ   s   
"zBlpImageFile._openN)r   r	   r
   Ú__doc__ÚformatÚformat_descriptionrn   r   r   r   r   rU   ö   s
    rU   c                   @   s8   e Zd ZdZdd„ Zdd„ Zdd„ Zdd	„ Zd
d„ ZdS )Ú_BLPBaseDecoderTc              
   C   s@   z|   ¡  |  ¡  W dS  tjy } zd}t|ƒ|‚d }~ww )NzTruncated BLP file)éÿÿÿÿr   )Ú_read_blp_headerÚ_loadr(   ÚerrorÚOSError)rk   ÚbufferÚerm   r   r   r   re     s   
ý
€þz_BLPBaseDecoder.decodec                 C   sä   | j  d¡ t d|  d¡¡\| _t d|  d¡¡\| _t d|  d¡¡\| _t d|  d¡¡\| _| j  dt	j
¡ t d|  d¡¡| _t| tƒr\t d|  d¡¡\| _| j  dt	j
¡ t d|  d¡¡| _t d|  d¡¡| _d S )	Nr"   ú<irW   r   rX   r!   ú<16Ié@   )Úfdr_   r(   rb   Ú
_safe_readÚ_blp_compressionÚ_blp_encodingrc   Ú_blp_alpha_encodingr`   ra   rh   Ú
isinstanceÚBLP1DecoderÚ_blp_offsetsÚ_blp_lengths)rk   r   r   r   rt     s   
z _BLPBaseDecoder._read_blp_headerc                 C   s   t  | j|¡S )N)r   r~   r}   )rk   Úlengthr   r   r   r~   0  s   z_BLPBaseDecoder._safe_readc              	   C   s`   g }t dƒD ]'}zt d|  d¡¡\}}}}W n tjy#   Y  |S w | ||||f¡ q|S )Né   ú<4Br"   )r'   r(   rb   r~   rv   Úappend)rk   r.   r   r?   r>   r=   r<   r   r   r   Ú_read_palette3  s   ýz_BLPBaseDecoder._read_palettec           
      C   s‚   t ƒ }t|  | jd ¡ƒ}	 zt d| d¡¡\}W n tjy%   Y |S w || \}}}}|||f}	| jr;|	|f7 }	| 	|	¡ q)Nr   Tú<Br   )
r&   r   r~   r…   r(   rb   r]   rv   rc   r*   )
rk   Úpaletter+   Ú_dataÚoffsetr?   r>   r=   r<   Údr   r   r   Ú
_read_bgra=  s   ù


÷z_BLPBaseDecoder._read_bgraN)	r   r	   r
   Z	_pulls_fdre   rt   r~   rŠ   r   r   r   r   r   rr     s    	
rr   c                   @   s   e Zd Zdd„ Zdd„ ZdS )rƒ   c                 C   s€   | j tjkr|  ¡  d S | j dkr4| jdv r(|  ¡ }|  |¡}|  t|ƒ¡ d S dt	| jƒ› }t
|ƒ‚dt	| jƒ› }t
|ƒ‚)Nr   )r"   r   zUnsupported BLP encoding zUnsupported BLP compression )r   r   r   Ú_decode_jpeg_streamr€   rŠ   r   Ú
set_as_rawÚbytesrf   rO   )rk   rŒ   r+   rm   r   r   r   ru   N  s   


zBLP1Decoder._loadc                 C   sä   ddl m} t d|  d¡¡\}|  |¡}|  | jd | j ¡  ¡ |  | jd ¡}|| }t	|ƒ}||ƒ}t
 |j¡ |jdkrV|jd \}}}}	||||	d dffg|_| d¡ ¡ \}
}}t
 d|||
f¡}|  | ¡ ¡ d S )Nr   )ÚJpegImageFilerC   r"   r   ZCMYKrZ   )ZJpegImagePluginr”   r(   rb   r~   r„   r}   Útellr…   r   r   Z_decompression_bomb_checkrh   ri   rj   ÚconvertÚsplitÚmerger’   Útobytes)rk   r”   Zjpeg_header_sizeZjpeg_headerr+   ÚimageZdecoder_nameZextentsrŽ   Úargsr=   r>   r?   r   r   r   r‘   ^  s   

zBLP1Decoder._decode_jpeg_streamN)r   r	   r
   ru   r‘   r   r   r   r   rƒ   M  s    rƒ   c                   @   s   e Zd Zdd„ ZdS )ÚBLP2Decoderc                 C   sÆ  |   ¡ }| j | jd ¡ | jdkrÎ| jtjkr|  |¡}n¼| jtj	krÂt
ƒ }| jtjkrZ| jd d d d }t| jd d d ƒD ]}t|  |¡t| jƒdD ]}||7 }qQqCn€| jtjkrˆ| jd d d d }t| jd d d ƒD ]}t|  |¡ƒD ]}||7 }qqvnR| jtjkr¶| jd d d d }t| jd d d ƒD ]}t|  |¡ƒD ]}||7 }q­q¤n$dt| jƒ› }t|ƒ‚d	t| jƒ› }t|ƒ‚d
t| jƒ› }t|ƒ‚|  t|ƒ¡ d S )Nr   r   r   r"   r!   )r,   rA   zUnsupported alpha encoding zUnknown BLP encoding zUnknown BLP compression )rŠ   r}   r_   r„   r   r€   r   r   r   r   r&   r   r   r   rh   r'   r@   r~   Úboolrc   r   rK   r   rN   rf   rO   r’   r“   )rk   rŒ   r+   ZlinesizeZybr   rm   r   r   r   ru   r  sJ   

ÿ
ýÿ
ÿÿ
ÿÿzBLP2Decoder._loadN)r   r	   r
   ru   r   r   r   r   rœ   q  s    rœ   c                   @   s    e Zd ZdZdd„ Zdd„ ZdS )Ú
BLPEncoderTc              	   C   s‚   d}| j  dd¡}tt|ƒd ƒD ]}||d |d d … \}}}}|t d||||¡7 }qt|ƒdk r?|d7 }t|ƒdk s5|S )Nó    rY   r"   r   rˆ   i   s       )ÚimZ
getpaletter'   r%   r(   Úpack)rk   r+   rŒ   r   r=   r>   r?   r<   r   r   r   Ú_write_palette£  s    ÿzBLPEncoder._write_palettec           	   
   C   sž   |   ¡ }dt|ƒ }tjd|gd¢R Ž }| jj\}}|tjd|| gd¢R Ž 7 }||7 }t|ƒD ]}t|ƒD ]}|t d| j ||f¡¡7 }q6q0t|ƒd|fS )Né”   r{   )r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r‹   r   )r¢   r%   r(   r¡   r    rh   r'   Zgetpixel)	rk   ÚbufsizeZpalette_datarŽ   r+   ÚwÚhÚyÚxr   r   r   Úencode­  s   ÿzBLPEncoder.encodeN)r   r	   r
   Z
_pushes_fdr¢   r©   r   r   r   r   rž      s    
rž   c                 C   s  | j dkrd}t|ƒ‚| j d¡dkrdnd}| |¡ | t dd¡¡ | t d	tj¡¡ | t d	| j	j d
kr<dnd¡¡ | t d	d¡¡ | t d	d¡¡ | tjdg| j
¢R Ž ¡ |dkru| t dd¡¡ | t dd¡¡ t | |dd| j
 d| j fg¡ d S )NÚPzUnsupported BLP image modeZblp_versionÚBLP1rQ   rR   rz   r   rW   rY   r   rX   r   rV   r[   )ri   Ú
ValueErrorZencoderinfoÚgetÚwriter(   r¡   r   r   rŒ   rh   r   Ú_save)r    r\   Úfilenamerm   r^   r   r   r   r¯   ¿  s   

"$r¯   z.blpr«   ZBLP2rV   )F)"ro   r`   r(   Úenumr   Úior   Ú r   r   r   r   r   r   r@   rK   rN   ÚNotImplementedErrorrO   rT   rU   Z	PyDecoderrr   rƒ   rœ   Z	PyEncoderrž   r¯   Zregister_openrp   Zregister_extensionZregister_decoderZregister_saveZregister_encoderr   r   r   r   Ú<module>   s6    
75F<$/