o \"}td t |d D],}|d ||krg||dkrg||dksvnt d|}||_ |_ nqJ|j|_|j|_d|_d|_|d dS)N znot a GIF filer version r backgroundrRGB)rrr SyntaxErrorinfoi16_sizetilerangelenrrawglobal_palettepalette_GifImageFile__fptell_GifImageFile__rewind _n_frames _is_animated_seek)rrflagsbitspir r r_open@s,  8   zGifImageFile._opencCsZ|jdur*|}z ||dq ty$|d|_Ynw|||jS)NTr)r0r.seekEOFErrorrcurrentr r rn_frames^s   zGifImageFile.n_framescCsl|jdur3|jdur|jdk|_|jS|}z |dd|_Wn ty-d|_Ynw|||jS)NrTF)r1r0r.r8r9r:r r r is_animatedjs         zGifImageFile.is_animatedc Cs||sdS||jkr|dkrd|_|d|j}t|jd|dD]}z||Wq%tyD}z ||td|d}~wwdS)Nrrzno more images in GIF file) _seek_check_GifImageFile__frameimr2r(r9r8)rframe last_framefer r rr8{s     zGifImageFile.seekcCs|dkrd|_d|_gd|_d|_|j|jd|_n|jr$| ||jdkr2t d|||_g|_|j|_ |jrR|j |j| rO | sJd|_|jr^|j |j|jddlm}||j|_i}d}d} |j d}|r}|dkrn|d kr|j d}| }|dd kr|d}|d@r|d }t|dd |d <d|@} | d?} | r| |_nR|ddkr|rd|vr|d|7<n||d<| }|sqp|ddkr ||j f|d<|dddkr | }t|d kr |ddkr t|d|d<| r | sn|dkr|j d}t|dt|d} } | t|d| t|d} } | |jdksJ| |jdkr[t| |jdt| |jdf|_| | | | f|_|d}|d@dk}|d@r|d@d}td|j d |>|_|j dd}|j |_n qqzs|jdkrd|_ng|jdkr|j\} } } } | | | | f}t||jd |}|dur|jd!d}tj d"|||_n0|j r|!|j |j|_n"|dur|j\} } } } | | | | f}t|tj d"|||_Wn t"yYnw|dur=d}|dur,|dkr*||jd <n|}d#| | | | f|j|||ffg|_nt#d$D]}||vrQ|||j|<qA||jvr[|j|=qAd%|_$|jrid"|_$dSdS)&Nr)rrrrrzcannot seek to frame )copyT;!r rdurationr!comment extensionr NETSCAPE2.0loop, r r@rrr" transparencyrPgif)rJrMrOrQL)%_GifImageFile__offsetdisposedispose_extentr?r-r8r/disposal_methodr'load ValueErrorrrr@pasterFr+r,rr%r.r)sizemaxr&rr*r_decompression_bomb_checkr$getcorefill_cropAttributeErrorr9mode)rrArFr$frame_transparency interlacerblockr3 dispose_bitsx0y0x1y1r4 dispose_sizecolorrVkr r rr2s              "    R               zGifImageFile._seekcs>|jsd|jvrtj|j|j|jd|_tt| dS)NrV) r@r$rrerfrirasuperr load_preparer __class__r rrvCszGifImageFile.load_preparecCs|jSN)r?rwr r rr.IszGifImageFile.tellcCsPz#z |j|jkr |jWn tyYnwWd|_dSWd|_dSd|_wrz)r-rcloserhrwr r r _close__fpLs    zGifImageFile._close__fp)__name__ __module__ __qualname__formatformat_description!_close_exclusive_fp_after_loadingr+rr7propertyr<r=r8r2rvr.r| __classcell__r r rxrr2s"   9rrYrW)1rYrWFcCsp|jtvr ||St|jdkr3|r.d}|jr%t|jdd}|jdtj |dS|dS|dS)a Takes an image (or frame), returns an image in a mode that is appropriate for saving in a Gif. It may return the original image, or it may return an image converted to palette or 'L' mode. 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 rW)r,colorsrY) riRAWMODEr^r getmodebaser,r)getdataconvertADAPTIVE)r@ initial_call palette_sizer r r_normalize_mode]s   rc Csfd}|rt|tttfrt|dd}t|tjrt|j}|jdkr1|s0|jddd}n|s>tddt dD}tjd|d|_|rg}t dt |d D]%}t |||d }z|jj |}Wn t yqd}Ynw||qRt|D]\}}|durt t |D] }||vr|||<nqq|||}nt||}|dur|||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 NirWr"css|]}|dVqdS)r Nr ).0r6r r r sz%_normalize_palette..r,rr ) isinstancebytes bytearraylistrr,rir@ getpaletter(r)tuplerKeyErrorappend enumerate remap_palette _get_optimize) r@r,r$source_paletteused_palette_colorsr6 source_colorindexjr r r_normalize_palette{sJ         rc Cst|d}|jD] \}}|j||q t|||j}t||jD]}||q#d}t|r5|dB}t ||d|dt|f|_ t ||dd|j dt|jfg|ddS)NTrrUrrrrX)rr$items encoderinfo setdefaultr_get_global_headerwrite get_interlace_write_local_header encoderconfigr_saverarri)r@rr,im_outrtvrr3r r r_write_single_frames  $rc Cs|jd|jd}|jd|jd}g}d}d}t|g|jdgD]}t|D]} t| } |dkrL| j D] \} } |j | | q@t | ||j} |j} t |t tfre||| d<t |t tfrr||| d<|d7}|r|d} | ddkr|dur|jd|jdd }t| |}td | j|}||dd j|}n| d }t| t|krt| |}n t| d |d }|}|s|r| d d| d7<q/nd}|| || dq/q(t|dkr:|D]?}|d } |dst| |d D]}||q d}n|sd|d d<| |d} |ddd}t|| ||d qdSd|jvrWt |jdt tfrYt |jd|jd<dSdSdS)NrJdisposalr append_imagesrrEr!rV)rrrrWr@r"r)r@bboxrrrTinclude_color_table)!rrdr$ itertoolschainrIteratorrrFrrrrrr_get_backgroundrnewra putpaletter,_get_palette_bytesrsubtract_modulorgetbboxrr)rrcrop_write_frame_datasum)r@rr,rJr im_frames frame_count background_im imSequenceim_framertrrpreviousrsrbase_imdeltar frame_dataroffsetr r r_write_multiple_framess|     -  rcCst|||dddS)NT)save_all)r)r@rfilenamer r r _save_allsrcCsd|jvs d|jvr|jd|jd}n d}|jdd|jd<|r*t|||s0t||||dt|dr@|dSdS)Nr,optimizeTrGflush)rr$rdrrrhasattrr)r@rrrr,r r rrs    rcCs$|jdd}t|jdkrd}|S)Nrkrr)rrdminra)r@rkr r rr(srcCsd}z|jd}Wn tyYn$wt|}d}t||j}|dur6z||}Wn ty5d}Ynwd|jvrEt|jdd}nd}t|jdd}|sX|dksX|r|r\dnd} | |d >O} |shd}|d td td t| t |t|tdd |jvrdt |jd kr|d td|jd } t | t r| } tdt | dD]} | | | d} |tt | | q|tdd|jvr|jd} |d tdtddtdtdt | td|jd}|rt|}t|}|r|dB}||B}|dt |dt |dt |jdt |jdt||rD|rD|t||tddS)NFrVTrJrrrrr!rHrIrTrMrLrNrQrrPr rrrRr)rrintrrr_rdrr o16r)rstrencoder(r_get_color_table_sizera_get_header_palette)rr@rr3transparent_color_existsrVrrJr packed_flagrMr6subblocknumber_of_loopsr palette_bytescolor_table_sizer r rr2s                 rc Cs|}ztt|dS}|jdkrtjd|g|tjdn:dd|g}dg}tj|tjtjd}tj||j|tjd}|j | } | rJt | || } | rVt | |Wdn1s`wYWzt |WdStyxYdSwzt |WwtyYww)Nwbr"ppmtogif)stdoutstderrppmquant256)stdinrr)_dumpopenri subprocess check_callDEVNULLPopenPIPErr{waitCalledProcessErrorosunlinkOSError) r@rrtempfilerC quant_cmd togif_cmd quant_proc togif_procretcoder r r _save_netpbmsL          rcCs|jdvrD|rF|ddrHtp|jdk}|s|j|jdkrJg}t|D] \}}|r1||q&|sBt|dkrLt |t|krN|SdSdSdSdSdSdS)aL Palette optimization is a potentially expensive operation. This function determines if the palette should be optimized using some heuristics, then returns the list of palette entries in use. :param im: Image object :param info: encoderinfo :returns: list of indexes of palette entries in use, or None )rWrYrrrYirN) rird_FORCE_OPTIMIZEwidthheightr histogramrr)rb)r@r$optimiserr6countr r rrs       rcCs6|sdSt|dkr dSttt|dddS)NrrSrr r!)r)mathceillog)rr r rrs  rcCs<t|}d|>t|d}|dkr|tdd|7}|S)z Returns the palette, null padded to the next power of 2 (*3) bytes suitable for direct inclusion in the GIF header :param palette_bytes: Unpadded palette bytes, in RGBRGB form :returns: Null padded palette r!r r)rr)r )rractual_target_size_diffr r rrs rcCs|jjS)z Gets the palette for inclusion in the gif header :param im: Image object :returns: Bytes, len<=768 suitable for inclusion in gif header r)r@r r rrsrc Csdd}|r0|}t|tr0z |j||}W|Sty/}zt|dkr*WYd}~dSd}~ww|S)Nrz$cannot allocate more than 256 colors)rrr,getcolorr_r)r@infoBackgroundrrDr r rrs  rcCsd}dD]*}|r.||vr.|dkr||dks)|dkr*dt||kr(dks*nqd}n q|jd dkr9d}t||d }t|}t|}d |t|jdt|jdt|d t|tdt |gS) z2Return a list of strings representing a GIF headers87a)rVrJrQrMrJrrMrrNs89arrsGIFr) r)r$rdrrrrrar r)r@r$r extensionKeyrrrr r rrs2 &   rc CsTz&||_t|||dt||dd|jdt|jfg|dW|`dS|`w)NrrXrr)rrrrrarrir)rrrparamsr r rrAs rcCsdt||}|dur i}d|vrd|jvr|jd|d<t|||}|j|_|j|_t||}||fS)a Legacy Method to get Gif data from image. Warning:: May modify image data. :param im: Image object :param palette: bytes object containing the source palette, or .... :param info: encoderinfo :returns: tuple of(list of header items, optimized palette) Nr)rr$rr,r@r)r@r,r$rim_modheaderr r r getheaderUs   r rcKs0Gddd}||}t|||||jS)a Legacy Method Return a list of strings representing this image. The first string is a local image header, the rest contains encoded image data. :param im: Image object :param offset: Tuple of (x, y) pixels. Defaults to (0,0) :param \**params: E.g. duration or other encoder info parameters :returns: List of Bytes containing gif encoded frame data c@seZdZgZddZdS)zgetdata..CollectorcSs|j|dSrz)rr)rrr r rrrz getdata..Collector.writeN)r}r~rrrr r r r Collectors r )r^rr)r@rrr rr r rrss rz.gifz image/gif)F)NN)r),rrrrrrrrr_binaryrr%r r rrrrrrrrrrrrrrrrrrrrrr r register_openr register_saveregister_save_allregister_extension register_mimer r r rsJ     * 5N  T2%  '  !