"۾jUdZddlmZddlZddlmZddlZddlmZddl Z ddl m Z m Z m Z mZddlmZdZd ed <ed d Gd dZd(dZ d)d*dZ d)d+dZ d,d-d$Zd.d&Zed'kr edSdS)/z FreeExile Level of Detail (LOD) Sprite Generator. Generates 3-tier LOD assets (LOD-0 100%, LOD-1 50%, LOD-2 25%) using Pillow Lanczos resampling. Guarantees LOD-2 file size <= 40% of original for mobile VRAM and bandwidth savings. ) annotationsN) dataclass)Path)DictListOptionalTuple)Image))lod0g?)lod1g?)lod2g?zTuple[Tuple[str, float], ...] LOD_SPECST)slotsfrozencFeZdZUdZded<ded<ded<ded <d ed <d S) LODGenerationResultz7Stores metadata and byte sizes for generated LOD tiers.r source_pathint original_sizeDict[str, Path] lod_pathszDict[str, int] lod_sizesfloatlod2_size_ratioN)__name__ __module__ __qualname____doc____annotations__;C:\Projects\FreeExile\tools\asset_pipeline\lod_generator.pyrrsTAAr!rimg Image.Imageout_pathrscalerreturnrc |dkr|}ntdtt|j|z}tdtt|j|z}|||ftjj }|j dd| |dd| jS)z=Downsamples image with Lanczos filter and writes to out_path.g+?Tparentsexist_okPNG)formatoptimize)copymaxrroundwidthheightresizer ResamplingLANCZOSparentmkdirsavestatst_size)r#r%r&scalednew_wnew_hs r"_resample_and_saver@%s ~~As5U!2334455As5e!3445566UENE,<,DEE O$666 KKK666 ==?? ""r! image_path Path | str output_dirOptional[Path | str]rct|}|r|st d||r!t|n|j}|ddi}tj|5}|j dvs d|j vrdnd}| |}tD]X\}} ||j d||jz } t|| | | ||<| ||<d |d } | || <Y d d d n #1swxYwY|S) zGenerates 3 LOD levels (LOD-0 100%, LOD-1 50%, LOD-2 25%) for a sprite image. Returns a dictionary mapping both lowercase ('lod0') and uppercase ('LOD-0') keys to paths. zSource sprite image not found: Tr*)RGBALA transparencyrFRGB_zLOD-N)rresolveexistsis_fileFileNotFoundErrorr8r9r openmodeinfoconvertrstemsuffixr@upper) rArCsrc target_dir result_pathsbase_imgrQr#lod_namer&out_file hyphen_keys r"generate_sprite_lodsr^3s z   " " $ $C ::<<Is{{}}I G# G GHHH/9Ij!!))+++szJTD111$&L C 0H!.88^x}=\=\vvcht$$( 0 0OHe!sx$H$H($HCJ$H$HHH sHe 4 4 4%-L "-5L)) *. ..J'/L $ $ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 s3B E  EEct|}|j}t ||fdt D}|dt d|z }t||||S)zGGenerates LODs and computes empirical file size and compression ratios.cVi|]%\}}||j&Sr )r;r<).0namerJpathss r" z+evaluate_lod_generation..\s?!!!-4T1eDk  (!!!r!r r))rrrrr)rrLr;r<r^rr1r)rArCrW orig_sizer lod2_ratiorcs @r"evaluate_lod_generationrgSs z   " " $ $C "I j 1 1E!!!!8A!!!I6"SI%6%66J "    r!*.png directorypatternstrList[LODGenerationResult]c$t|}g}t||D]Ht fdt Dr#t |}||I|S)zz&batch_generate_lods..us4CCvsAy3yyIN*CCCCCCr!)rrLsortedglobanyrrgappend)rirCrjsrc_dirresultsresrps @r"batch_generate_lodsryjs 9oo%%''G)+GGLL1122 CCCCCCC C C  %i<<s Nr!Nonec ~tjd}|ddtd|ddtd d |d d td d |dtdd |ddd|}|jrt|j|j}|j dz}td|j j td|j d|jD]*\}}td|d|d||j z dzdd+|jrA|j d kr8td!|d"d#t"j$t#jd%d Sd Sd S|jrwt+|j|j|j}td&t/|d'|j|D]+}td|j j d(|j dzdd#,d S|d S))z#CLI entry point for LOD generation.zFreeExile Sprite LOD Generator) descriptionz--inputz-izSource PNG file)typehelpz --output-dirz-oNzOutput directory)r}defaultr~z--batchz-bzBatch directory of PNGsz --patternrhzGlob pattern for batchz--verify-budget store_truezAssert LOD-2 <= 40% size)actionr~gY@z Processed: z Original: z bytesz z: z bytes (dz.1fz%)g?z"[ERROR] LOD-2 exceeds 40% budget: z.2f%)filer)zBatch processed z textures in z -> LOD-2: )argparseArgumentParser add_argumentrrk parse_argsinputrgrCrprintrrbrritems verify_budgetsysstderrexitbatchryrjlen print_help)parserargsrxpctkvrwrs r"mainr}s  $1Q R R RF  4d9JKKK 4L^___  4dDG`aaa  #wE]^^^ ),E_```     D z%dj$/BB!E) 2CO022333 6S.666777M'')) L LDAq JqJJAJJq3+<'rs #"""""!!!!!!  ............,  d###$# # # # # (,D(,2(,&: zDFFFFFr!