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UNDONE: What is the point of mucking with the initial call palette, for an image that shouldn't have a palette, or it would be a mode 'P' and get returned in the RAWMODE clause. :param im: Image object :param initial_call: Default false, set to true for a single frame. :returns: Image object r%rr#rTr/ZcolorsrU) rcRAWMODEr[rZ getmodebaser/r,getdatarhZADAPTIVE)rZZ initial_callZ palette_sizerrr_normalize_mode.s   rscCsRd}|rt|tttfr=t|dd}nt|tjrttjjt|j dd|j dd|j dd}qn|j dkr|s|j j ddd}qn@|stddt dD}ntjdd ||_ t||}|dk rB|j||S||j _ |S) at Normalizes the palette for image. - Sets the palette to the incoming palette, if provided. - Ensures that there's a palette for L mode images - Optimizes the palette if necessary/desired. :param im: Image object :param palette: bytes object containing the source palette, or .... :param info: encoderinfo :returns: Image object NirpirTr%css|]}|dVqdS)r#Nr).0r9rrr hsz%_normalize_palette..r/) isinstancebytes bytearraylistr itertoolschain from_iterablezipr/rcrZZ getpaletter+ _get_optimizeZ remap_palette)rZr/r'Zsource_paletteused_palette_colorsrrr_normalize_paletteLs*  """    rcCst|d}t|||j}x't||jD]}|j|q7Wd}t|rm|dB}nt||d|dt|f|_tj ||dd|j dt |j fg|jddS) NTr rRrrSs)r r )r r ) rsr encoderinfo_get_global_headerwrite get_interlace_write_local_headerZ encoderconfigr_saver)rqrc)rZrr/Zim_outrr6rrr_write_single_framets  rcCs|jjdd}|jjdd}g}d}xtj|g|jjdgD]{}xrtj|D]a}t|j}t|||j}|jj} t |t t fr||| dO} |sd}n|jd td td t| t |t|tdnd |jkrdt |jd kodknr|jd tdtt |jd |jd tdnd|jkrT|jd} |jd tdtddtdtdt | tdn|jjd} | r|jjdd} t |} t | }|r|dB}||B}qn|jdt |dt |dt |j dt |j dt|| r0|r0|jt| n|jtddS)NFrGTrHrr rrr$rErFrQrKrLrJrNr!s NETSCAPE2.0r#rr/r rOr)rrbintr~indexr\rrr o16r,r_get_color_table_sizer)_get_header_palette)rrZrr6Ztransparent_color_existsrGrrHrZ packed_flagZnumber_of_loopsrr/ palette_bytescolor_table_sizerrrrs`     58/ 9   A rcCsddl}ddlm}m}m}m}|j}t|d} |jdkrt|j d#} |d|gd| d| WdQXndd |g} dg} t|j d@} || d|d| } || d | j d| d| }WdQX| j j | j }|r2||| n|j }|rV||| nWdQXy|j |Wntk rYnXdS) Nr )Popen check_callPIPECalledProcessErrorwbr%ZppmtogifstdoutstderrZppmquantZ256stdin)os subprocessrrrr_dumpopenrcdevnullrclosewaitunlinkOSError)rZrrrrrrrfilerBrZ quant_cmdZ togif_cmdZ quant_procZ togif_procretcoderrr _save_netpbm2s0 " %     rcCs|jdkr|r|jddrtp9|jdk}|sX|j|jd krg}x6t|jD]"\}}|rq|j|qqqqW|st|dkrt |t|kr|SqndS) aL Palette optimization is a potentially expensive operation. 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