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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    N)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   ú7/tmp/pip-unpacked-wheel-_wxctax1/PIL/FtexImagePlugin.pyr   @   s   r   c                 C   s–   d}t di ¡ D ]j\}}|  |¡r| t|ƒd … } | |jkrtj||  d | d |j d |  d tdd� ||    S qt	d	t› d
| › d�ƒ‚d S )Nz:deprecated and will be removed in Pillow 10 (2023-07-01). ZFORMAT_z is zUse Ú.z	 instead.é   )Ú
stacklevelzmodule 'z' has no attribute 'ú')
r   ÚitemsÚ
startswithÚlenÚ__members__ÚwarningsÚwarnr   ÚDeprecationWarningÚAttributeError)ÚnameÚ
deprecatedÚenumÚprefixr   r   r   Ú__getattr__E   s8    

ÿþýüûúùø	õr   c                   @   s$   e Zd ZdZdZdd„ Zdd„ ZdS )ÚFtexImageFileZFTEXzTexture File Format (IW2:EOC)c                 C   s&  t | j d¡ƒstdƒ‚t d| j d¡¡ t d| j d¡¡| _t d| j d¡¡\}}d| _|dkslt‚t d| j d¡¡\}}| j 	|¡ t d| j d¡¡\}| j |¡}|t
jkrÚd| _d	d
| j ddfg| _n4|t
jkrüdd
| j ddfg| _ntdt|ƒ› �ƒ‚| j ¡  t|ƒ| _d S )Né   znot an FTEX filez<iz<2ié   ÚRGBr   ZRGBAZbcn)r   r   r   Úraw)r#   r   r   z$Invalid texture compression format: )Ú_acceptÚfpÚreadÚSyntaxErrorÚstructÚunpackÚ_sizeÚmodeÚAssertionErrorÚseekr   r   ÚsizeZtiler   Ú
ValueErrorÚreprÚcloser   )ÚselfZmipmap_countZformat_countÚformatÚwhereZmipmap_sizeÚdatar   r   r   Ú_open`   s&    


zFtexImageFile._openc                 C   s   d S )Nr   )r3   Úposr   r   r   Ú	load_seek~   s    zFtexImageFile.load_seekN)r   r	   r
   r4   Úformat_descriptionr7   r9   r   r   r   r   r    \   s   r    c                 C   s   | d d… t kS )Nr!   )ÚMAGIC)r   r   r   r   r%   ‚   s    r%   z.ftcz.ftu)Ú__doc__r)   r   r   r   Úior   Ú r   r   r;   r   r   r    r%   Zregister_openr4   Zregister_extensionsr   r   r   r   Ú<module>   s   5&