// Encode the supplied data and write it to the // specified strip. // // NB: Image length must be setup before writing. public static int TIFFWriteEncodedStrip(TIFF tif, uint strip, byte[] data, int cc) { string module="TIFFWriteEncodedStrip"; TIFFDirectory td=tif.tif_dir; ushort sample; if(!((tif.tif_flags&TIF_FLAGS.TIFF_BEENWRITING)!=0||TIFFWriteCheck(tif, false, module))) return -1; // Check strip array to make sure there's space. // We don't support dynamically growing files that // have data organized in separate bitplanes because // it's too painful. In that case we require that // the imagelength be set properly before the first // write (so that the strips array will be fully // allocated above). /// if(strip>=td.td_nstrips) { if(td.td_planarconfig==PLANARCONFIG.SEPARATE) { TIFFErrorExt(tif.tif_clientdata, tif.tif_name, "Can not grow image by strips when using separate planes"); return -1; } if(!TIFFGrowStrips(tif, 1, module)) return -1; td.td_stripsperimage=TIFFhowmany(td.td_imagelength, td.td_rowsperstrip); } // Handle delayed allocation of data buffer. This // permits it to be sized according to the directory // info. if(!BUFFERCHECK(tif)) return -1; tif.tif_curstrip=strip; tif.tif_row=(strip%td.td_stripsperimage)*td.td_rowsperstrip; if((tif.tif_flags&TIF_FLAGS.TIFF_CODERSETUP)==0) { if(!tif.tif_setupencode(tif)) return -1; tif.tif_flags|=TIF_FLAGS.TIFF_CODERSETUP; } tif.tif_rawcc=0; tif.tif_rawcp=0; if(td.td_stripbytecount[strip]>0) { // Force TIFFAppendToStrip() to consider placing data at end of file. tif.tif_curoff=0; } tif.tif_flags&=~TIF_FLAGS.TIFF_POSTENCODE; sample=(ushort)(strip/td.td_stripsperimage); if(!tif.tif_preencode(tif, sample)) return -1; // swab if needed - note that source buffer will be altered tif.tif_postdecode(tif, data, 0, cc); if(!tif.tif_encodestrip(tif, data, cc, sample)) return 0; if(!tif.tif_postencode(tif)) return -1; if(!isFillOrder(tif, td.td_fillorder)&&(tif.tif_flags&TIF_FLAGS.TIFF_NOBITREV)==0) TIFFReverseBits(tif.tif_rawdata, tif.tif_rawcc); if(tif.tif_rawcc>0&&!TIFFAppendToStrip(tif, strip, tif.tif_rawdata, tif.tif_rawcc)) return -1; tif.tif_rawcc=0; tif.tif_rawcp=0; return cc; }
// Encode the supplied data and write it to the // specified strip. // // NB: Image length must be setup before writing. public static int TIFFWriteEncodedStrip(TIFF tif, uint strip, byte[] data, int cc) { string module = "TIFFWriteEncodedStrip"; TIFFDirectory td = tif.tif_dir; ushort sample; if (!((tif.tif_flags & TIF_FLAGS.TIFF_BEENWRITING) != 0 || TIFFWriteCheck(tif, false, module))) { return(-1); } // Check strip array to make sure there's space. // We don't support dynamically growing files that // have data organized in separate bitplanes because // it's too painful. In that case we require that // the imagelength be set properly before the first // write (so that the strips array will be fully // allocated above). /// if (strip >= td.td_nstrips) { if (td.td_planarconfig == PLANARCONFIG.SEPARATE) { TIFFErrorExt(tif.tif_clientdata, tif.tif_name, "Can not grow image by strips when using separate planes"); return(-1); } if (!TIFFGrowStrips(tif, 1, module)) { return(-1); } td.td_stripsperimage = TIFFhowmany(td.td_imagelength, td.td_rowsperstrip); } // Handle delayed allocation of data buffer. This // permits it to be sized according to the directory // info. if (!BUFFERCHECK(tif)) { return(-1); } tif.tif_curstrip = strip; tif.tif_row = (strip % td.td_stripsperimage) * td.td_rowsperstrip; if ((tif.tif_flags & TIF_FLAGS.TIFF_CODERSETUP) == 0) { if (!tif.tif_setupencode(tif)) { return(-1); } tif.tif_flags |= TIF_FLAGS.TIFF_CODERSETUP; } tif.tif_rawcc = 0; tif.tif_rawcp = 0; if (td.td_stripbytecount[strip] > 0) { // Force TIFFAppendToStrip() to consider placing data at end of file. tif.tif_curoff = 0; } tif.tif_flags &= ~TIF_FLAGS.TIFF_POSTENCODE; sample = (ushort)(strip / td.td_stripsperimage); if (!tif.tif_preencode(tif, sample)) { return(-1); } // swab if needed - note that source buffer will be altered tif.tif_postdecode(tif, data, 0, cc); if (!tif.tif_encodestrip(tif, data, cc, sample)) { return(0); } if (!tif.tif_postencode(tif)) { return(-1); } if (!isFillOrder(tif, td.td_fillorder) && (tif.tif_flags & TIF_FLAGS.TIFF_NOBITREV) == 0) { TIFFReverseBits(tif.tif_rawdata, tif.tif_rawcc); } if (tif.tif_rawcc > 0 && !TIFFAppendToStrip(tif, strip, tif.tif_rawdata, tif.tif_rawcc)) { return(-1); } tif.tif_rawcc = 0; tif.tif_rawcp = 0; return(cc); }