a ֶaSR@sddlZddlZddlZddlZddlmZddlmZdZdZ dZ dd d d d d Z ddZ ddZ GdddejZGdddeZGdddZd ddZddZGdddZGdddZdS)!N)Image)isPathiiFzimage buffer overrun errorzdecoding errorz unknown errorzbad configurationzout of memory error)iicCsLztj|}Wnty,t|}Yn0|s        zImageFile.__init__cCs,|jr |jS|jdur(tj|jSdSN)rformatrZMIMEr upperr/rrrget_format_mimetypes zImageFile.get_format_mimetypecCs|jr|jd|_dS)zCheck file integrityN)r#r!r.r6rrrverifys zImageFile.verifyc Cs|jdurtdtj|}|js(|Sd|_|jo@t|jdk}|oPttd }d}z|j }d}Wnt y~|j j }Yn0z|j }d}Wnt y|j j}Yn0|r|jd\}}}} |dkrt| dkr| d|jkr| dtjvrz~ddl} t|j(} | j| d| jd |_Wdn1s>0Ytj|j|j||| |_d}|jrvd|j_Wn t ttfyd|_Yn0|d } |js8|jjtd z |j} Wnt yd } Yn0d dt !|jddD|_|jD]0\}}}} t"|j|| |j#}z|||$|j||j%rd|&|j |'d \}} n| }z||j(}WnLt)t*j+fy}z,t,rWYd}~qn td|WYd}~n d}~00|st,r֐qntdt|d||}|'|\}} |dkrq||d}qhW|-n |-0qg|_||_.|/|j0rf|j1rf|j 2d|_ |jst,s| dkrt3| tj|S)z"Load image data based on tile listNzcannot load this imagerpypy_version_inforFraw)accessrkeycSsg|]\}}t|dqS)r)list).0_Ztilesrrr sz"ImageFile.load..cSs|d|d|dfS)Nrrr;r)rrrrr?z ImageFile.load..zimage file is truncatedzimage file is truncated (z bytes not processed))4rr rloadmapr"lenhasattrsys load_readr r!read load_seekseekr+Z _MAPMODESmmapr filenoZ ACCESS_READrZ map_bufferr,imZpaletteZdirty ImportError load_preparesortrZ tile_prefix itertoolsgroupby _getdecoderrsetimagepulls_fdsetfddecoderr%r)r LOAD_TRUNCATED_IMAGEScleanuprload_endr#Z!_close_exclusive_fp_after_loadingr.r)r/ZpixelZuse_mmaprrKrMZ decoder_nameextentsoffsetargsrNr!Zerr_codeprefixdecoderstatusbsenrrrrEs        8          zImageFile.loadcCsP|jr"|jj|jks"|jj|jkr6tj|j|j|_|jdkrLtj|dS)NP)rPr+r,rrnewrEr6rrrrRs" zImageFile.load_preparecCsdSr3rr6rrrr]szImageFile.load_endcCsB||jks.t|dr|jdus6||j|jkr6td||kS)N _n_framesz attempt to seek outside sequence)rrHrjZn_framesr(tell)r/framerrr _seek_check(s zImageFile._seek_check)NN) __name__ __module__ __qualname____doc__rr7r8rErRr]rm __classcell__rrr1rrPs/  rc@s(eZdZdZddZddZddZdS) StubImageFilez Base class for stub image loaders. 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Nzcannot reuse parsers)datar6rrrreset^sz Parser.resetc Cs|jr dS|jdur||_n |j||_|jr|jdkrztt|j|j}|j|d|_|j||_|jdksv|jszdS|j|j\}}|dkrd|_d|_|dkrd|_t|ndS|j|d|_n |jrڐnztdd|D|krtdd|S)a Reads large blocks in a safe way. Unlike fp.read(n), this function doesn't trust the user. If the requested size is larger than SAFEBLOCK, the file is read block by block. :param fp: File handle. Must implement a read method. :param size: Number of bytes to read. :returns: A string containing size bytes of data. Raises an OSError if the file is truncated and the read cannot be completed rr?zTruncated File Readcss|]}t|VqdSr3)rG)rArrrr 3r?z_safe_read..) SAFEBLOCKrKrGr r~appendsumjoin)r!r,r{Zremaining_sizeblockrrr _safe_reads$    rc@seZdZddZddZdS) PyCodecStatecCsd|_d|_d|_d|_dS)Nr)xsizeysizexoffyoffr6rrrr9szPyCodecState.__init__cCs |j|j|j|j|j|jfSr3)rrrrr6rrrr^?szPyCodecState.extentsN)rnrorprr^rrrrr8src@s\eZdZdZdZddZddZeddZd d Z d d Z d dZ dddZ dddZ dS) PyDecoderz Python implementation of a format decoder. 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