o
    Ñ­j®  ã                   @  s–   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
„ d
eƒZG dd„ de
j
ƒZddd„Ze	 ejee¡ e	 ejddg¡ dS )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.
é    )ÚannotationsN)ÚIntEnum)ÚBytesIOé   )ÚImageÚ	ImageFiles   FTEXc                   @  s   e Zd ZdZdZdS )ÚFormatr   r   N)Ú__name__Ú
__module__Ú__qualname__ÚDXT1ÚUNCOMPRESSED© r   r   úP/var/www/html/CropPilot/venv/lib/python3.10/site-packages/PIL/FtexImagePlugin.pyr   A   s    r   c                   @  s(   e Zd ZdZdZddd„Zdd	d
„ZdS )ÚFtexImageFileÚFTEXzTexture File Format (IW2:EOC)ÚreturnÚNonec                 C  s.  t | j d¡ƒsd}t|ƒ‚t d| j d¡¡ t d| j d¡¡| _t d| j d¡¡\}}d| _|dks8J ‚t d| j d¡¡\}}| j |¡ t d| j d¡¡\}| j |¡}|t	j
krod| _d	d
| j ddfg| _n|t	jkr€dd
| j ddfg| _ndt|ƒ› �}t|ƒ‚| j ¡  t|ƒ| _d S )Né   znot an FTEX filez<iz<2ié   ÚRGBr   ÚRGBAÚbcn)r   r   r   Úraw)r   r   r   z$Invalid texture compression format: )Ú_acceptÚfpÚreadÚSyntaxErrorÚstructÚunpackÚ_sizeÚ_modeÚseekr   r   ÚsizeÚtiler   ÚreprÚ
ValueErrorÚcloser   )ÚselfÚmsgÚmipmap_countÚformat_countÚformatÚwhereÚmipmap_sizeÚdatar   r   r   Ú_openJ   s*   


zFtexImageFile._openÚposÚintc                 C  s   d S )Nr   )r(   r1   r   r   r   Ú	load_seekj   s   zFtexImageFile.load_seekN)r   r   )r1   r2   r   r   )r	   r
   r   r,   Úformat_descriptionr0   r3   r   r   r   r   r   F   s
    
 r   ÚprefixÚbytesr   Úboolc                 C  s   | d d… t kS )Nr   )ÚMAGIC)r5   r   r   r   r   n   s   r   z.ftcz.ftu)r5   r6   r   r7   )Ú__doc__Ú
__future__r   r   Úenumr   Úior   Ú r   r   r8   r   r   r   Úregister_openr,   Úregister_extensionsr   r   r   r   Ú<module>   s    5
(