۾j6 dZddlmZddlZddlmZddlmZmZddl m Z  dddZ dddZ dddZ ddZedkr edSdS) z FreeExile Sprite & Texture Mipmap Chain Generator. Computes full power-of-two downsampled mipmap chains (down to 1x1) for high-performance GPU sampling. Prevents texture shimmering/aliasing and reduces memory cache misses during isometric camera zoom. ) annotationsN)Path)ListOptional)Imageimage Image.Image min_dimensionintreturnList[Image.Image]c|g}|}|j|ks |j|krt||jdz}t||jdz}||jkr ||jkrnR|||ft jj}|||j|k|j|k|S)zJGenerates downsampled mipmap levels down to min_dimension x min_dimension.) copywidthheightmaxresizer ResamplingLANCZOSappend)r r chaincurrnext_wnext_hs :C:\Projects\FreeExile\tools\asset_pipeline\mipmap_utils.pygenerate_mipmap_chainrs !& ~E D *} $ $ m(C(C]DJ!O44]DK1$455 TZ  Fdk$9$9 {{FF+U-=-EFF T *} $ $ m(C(C L image_path Path | str output_dirOptional[Path | str] List[Path]ct|}|r|st d||r!t|n|j}|ddtj|5}|j dvs d|j vrdnd}| |}t||}d d d n #1swxYwYg} t|D]H\} } ||jd | |jz } | | d d | | I| S) z@Bakes and saves all mipmap levels to disk for the given texture.zSource texture not found: T)parentsexist_ok)RGBALA transparencyr(RGBr N_mipPNG)formatoptimize)rresolveexistsis_fileFileNotFoundErrorparentmkdirropenmodeinfoconvertr enumeratestemsuffixsaver) r r"r src target_dirbase_imgr8imglevels saved_pathsidxmip_imgmip_paths rsave_mipmap_chainrH$s z   " " $ $C ::<<Ds{{}}D BS B BCCC/9Ij!!))+++szJTD111 CIH!.88^x}=\=\vvcht$$&s-HHHIIIIIIIIIIIIIII !K!&))%% W38 B B Bcj B BB Xed ;;;8$$$$ s1=C::C>C> atlas_pathc&t|||S)zHHook invoked by animation_pipeline.py to create mipmaps alongside atlas.r,)rH)rIr"r s rgenerate_and_save_mipmapsrK?s Z= Q Q QQrNonectjd}|ddtdd|dd td d |d tdd |}t |j|j|j }tdt|d|jj d|D]4}td|j d| jd5d S)z&CLI entry point for mipmap generation.z"FreeExile Texture Mipmap Generator) descriptionz--inputz-iTzInput texture file)typerequiredhelpz --output-dirz-oNzOutput directory)rOdefaultrQz --min-dimrzMinimum dimension (default: 1)r,z Generated z mipmap levels for :z - z (z bytes))argparseArgumentParser add_argumentrr parse_argsrHinputr"min_dimprintlennamestatst_size)parserargspathsps rmainrcHs  $1U V V VF  4dTH\]]] 4L^___  #q?_```     D dj$/ V V VE Hs5zz H Hdjo H H HIII :: 8QV88qvvxx/8889999::r__main__)r)r r r r r r)Nr)r r!r"r#r r r r$)rIr!r"r#r r r r$)r rL)__doc__ __future__rrTpathlibrtypingrrPILrrrHrKrc__name__rrrls #"""""!!!!!!!! *(,:(,RRRRR : : : : zDFFFFFr