
    Bwg                    
   d Z ddlmZ ddlZddlmZ ddlmZ ddlm	Z	m
Z
 dZ G d	 d
e      Z G d de
j                        ZddZ e	j                  ej                   ee        e	j"                  ej                   ddg       y)a  
A Pillow loader for .ftc and .ftu files (FTEX)
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/

Independence War 2: Edge Of Chaos - Texture File Format - 16 October 2001

The textures used for 3D objects in Independence War 2: Edge Of Chaos are in a
packed custom format called FTEX. This file format uses file extensions FTC
and FTU.
* FTC files are compressed textures (using standard texture compression).
* FTU files are not compressed.
Texture File Format
The FTC and FTU texture files both use the same format. This
has the following structure:
{header}
{format_directory}
{data}
Where:
{header} = {
    u32:magic,
    u32:version,
    u32:width,
    u32:height,
    u32:mipmap_count,
    u32:format_count
}

* The "magic" number is "FTEX".
* "width" and "height" are the dimensions of the texture.
* "mipmap_count" is the number of mipmaps in the texture.
* "format_count" is the number of texture formats (different versions of the
same texture) in this file.

{format_directory} = format_count * { u32:format, u32:where }

The format value is 0 for DXT1 compressed textures and 1 for 24-bit RGB
uncompressed textures.
The texture data for a format starts at the position "where" in the file.

Each set of texture data in the file has the following structure:
{data} = format_count * { u32:mipmap_size, mipmap_size * { u8 } }
* "mipmap_size" is the number of bytes in that mip level. For compressed
textures this is the size of the texture data compressed with DXT1. For 24 bit
uncompressed textures, this is 3 * width * height. Following this are the image
bytes for that mipmap level.

Note: All data is stored in little-Endian (Intel) byte order.
    )annotationsN)IntEnum)BytesIO   )Image	ImageFiles   FTEXc                      e Zd ZdZdZy)Formatr   r   N)__name__
__module____qualname__DXT1UNCOMPRESSED     J/var/www/horilla/myenv/lib/python3.12/site-packages/PIL/FtexImagePlugin.pyr
   r
   A   s    DLr   r
   c                  $    e Zd ZdZdZddZddZy)FtexImageFileFTEXzTexture File Format (IW2:EOC)c                n   t        | j                  j                  d            sd}t        |      t	        j
                  d| j                  j                  d             t	        j
                  d| j                  j                  d            | _        t	        j
                  d| j                  j                  d            \  }}d| _        |dk(  sJ t	        j
                  d| j                  j                  d            \  }}| j                  j                  |       t	        j
                  d| j                  j                  d            \  }| j                  j                  |      }|t        j                  k(  r3d| _        t        j                  d	d
| j                  z   dd      g| _        nX|t        j                  k(  r,t        j                  dd
| j                  z   dd      g| _        ndt!        |       }t#        |      | j                  j%                          t'        |      | _        y )N   znot an FTEX filez<iz<2i   RGBr   RGBAbcn)r   r   r   )r   rawz$Invalid texture compression format: )_acceptfpreadSyntaxErrorstructunpack_size_modeseekr
   r   r   _Tilesizetiler   repr
ValueErrorcloser   )selfmsgmipmap_countformat_countformatwheremipmap_sizedatas           r   _openzFtexImageFile._openJ   s   tww||A'$Cc""dDGGLLO,]]5$'',,q/:
%+]]5$'',,q/%J"l
 q   eTWW\\!_=UtTWW\\!_=ww||K(V[[ DJ"0BAtLMDIv***"0BAuMNDI8fGCS/!$-r   c                     y )Nr   )r,   poss     r   	load_seekzFtexImageFile.load_seekj   s    r   N)returnNone)r6   intr8   r9   )r   r   r   r0   format_descriptionr4   r7   r   r   r   r   r   F   s    F8 @r   r   c                    | d d t         k(  S )Nr   )MAGIC)prefixs    r   r   r   n   s    "1:r   z.ftcz.ftu)r>   bytesr8   bool)__doc__
__future__r   r!   enumr   ior    r   r   r=   r
   r   r   register_openr0   register_extensionsr   r   r   <module>rH      s~   3j #    W 
%I'' %P   M((- A   -..0@ Ar   