libs/tiff/tif_jbig.c

51 #define GetJBIGState(tif) ((JBIGState*)(tif)->tif_data)
66 static int JBIGSetupDecode(TIFF* tif)
68         if (TIFFNumberOfStrips(tif) != 1)
77 static int JBIGDecode(TIFF* tif, tidata_t buffer, tsize_t size, tsample_t s)
84         if (isFillOrder(tif, tif->tif_dir.td_fillorder))
86                 TIFFReverseBits(tif->tif_rawdata, tif->tif_rawdatasize);
92         jbg_newlen(tif->tif_rawdata, tif->tif_rawdatasize);
105         decodeStatus = jbg_dec_in(&decoder, tif->tif_rawdata,
106                                   tif->tif_rawdatasize, NULL);
130 static int JBIGSetupEncode(TIFF* tif)
132         if (TIFFNumberOfStrips(tif) != 1)
141 static int JBIGCopyEncodedData(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s)
148                 if (tif->tif_rawcc + n > tif->tif_rawdatasize)
150                         n = tif->tif_rawdatasize - tif->tif_rawcc;
154                 _TIFFmemcpy(tif->tif_rawcp, pp, n);
155                 tif->tif_rawcp += n;
156                 tif->tif_rawcc += n;
159                 if (tif->tif_rawcc >= tif->tif_rawdatasize &&
160                     !TIFFFlushData1(tif))
171         TIFF* tif = (TIFF*)userData;
173         if (isFillOrder(tif, tif->tif_dir.td_fillorder))
178         JBIGCopyEncodedData(tif, buffer, len, 0);
181 static int JBIGEncode(TIFF* tif, tidata_t buffer, tsize_t size, tsample_t s)
183         TIFFDirectory* dir = &tif->tif_dir;
194                      tif);
205 static void JBIGCleanup(TIFF* tif)
207         JBIGState *sp = GetJBIGState(tif);
211         tif->tif_tagmethods.vgetfield = sp->vgetparent;
212         tif->tif_tagmethods.vsetfield = sp->vsetparent;
214 	_TIFFfree(tif->tif_data);
215 	tif->tif_data = NULL;
217 	_TIFFSetDefaultCompressionState(tif);
220 static void JBIGPrintDir(TIFF* tif, FILE* fd, long flags)
222         JBIGState* codec = GetJBIGState(tif);
225         if (TIFFFieldSet(tif, FIELD_RECVPARAMS))
232         if (TIFFFieldSet(tif, FIELD_SUBADDRESS))
239         if (TIFFFieldSet(tif, FIELD_RECVTIME))
246         if (TIFFFieldSet(tif, FIELD_FAXDCS))
254 static int JBIGVGetField(TIFF* tif, ttag_t tag, va_list ap)
256         JBIGState* codec = GetJBIGState(tif);
277                         return (*codec->vgetparent)(tif, tag, ap);
283 static int JBIGVSetField(TIFF* tif, ttag_t tag, va_list ap)
285         JBIGState* codec = GetJBIGState(tif);
306                         return (*codec->vsetparent)(tif, tag, ap);
309         TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit);
310         tif->tif_flags |= TIFF_DIRTYDIRECT;
314 int TIFFInitJBIG(TIFF* tif, int scheme)
323 	if (!_TIFFMergeFieldInfo(tif, jbigFieldInfo,
325 		TIFFErrorExt(tif->tif_clientdata, "TIFFInitJBIG",
331         tif->tif_data = (tdata_t)_TIFFmalloc(sizeof(JBIGState));
332         if (tif->tif_data == NULL)
337         _TIFFmemset(tif->tif_data, 0, sizeof(JBIGState));
338         codec = GetJBIGState(tif);
349         codec->vgetparent = tif->tif_tagmethods.vgetfield;
350         codec->vsetparent = tif->tif_tagmethods.vsetfield;
351         tif->tif_tagmethods.vgetfield = JBIGVGetField;
352         tif->tif_tagmethods.vsetfield = JBIGVSetField;
353         tif->tif_tagmethods.printdir = JBIGPrintDir;
360         tif->tif_flags |= TIFF_NOBITREV;
361         tif->tif_flags &= ~TIFF_MAPPED;
364         tif->tif_setupdecode = JBIGSetupDecode;
365         tif->tif_decodestrip = JBIGDecode;
367         tif->tif_setupencode = JBIGSetupEncode;
368         tif->tif_encodestrip = JBIGEncode;
370         tif->tif_cleanup = JBIGCleanup;