public IntegerCompressor(ArithmeticDecoder dec, uint bits=16, uint contexts=1, uint bits_high=8, uint range=0) { Debug.Assert(dec!=null); this.enc=null; this.dec=dec; Init(bits, contexts, bits_high, range); }
public IntegerCompressor(ArithmeticDecoder dec, uint bits = 16, uint contexts = 1, uint bits_high = 8, uint range = 0) { Debug.Assert(dec != null); this.enc = null; this.dec = dec; Init(bits, contexts, bits_high, range); }
public LASreadItemCompressed_RGB12_v1(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec != null); this.dec = dec; // create models and integer compressors m_byte_used = dec.createSymbolModel(64); ic_rgb = new IntegerCompressor(dec, 8, 6); }
public LASreadItemCompressed_GPSTIME11_v2(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec!=null); this.dec=dec; // create entropy models and integer compressors m_gpstime_multi=dec.createSymbolModel(LASZIP_GPSTIME_MULTI_TOTAL); m_gpstime_0diff=dec.createSymbolModel(6); ic_gpstime=new IntegerCompressor(dec, 32, 9); // 32 bits, 9 contexts }
public LASreadItemCompressed_BYTE_v1(ArithmeticDecoder dec, uint number) { // set decoder Debug.Assert(dec != null); this.dec = dec; Debug.Assert(number != 0); this.number = number; // create models and integer compressors ic_byte = new IntegerCompressor(dec, 8, number); // create last item last_item = new byte[number]; }
public LASreadItemCompressed_BYTE_v1(ArithmeticDecoder dec, uint number) { // set decoder Debug.Assert(dec!=null); this.dec=dec; Debug.Assert(number!=0); this.number=number; // create models and integer compressors ic_byte=new IntegerCompressor(dec, 8, number); // create last item last_item=new byte[number]; }
public LASreadItemCompressed_RGB12_v2(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec != null); this.dec = dec; // create models and integer compressors m_byte_used = dec.createSymbolModel(128); m_rgb_diff_0 = dec.createSymbolModel(256); m_rgb_diff_1 = dec.createSymbolModel(256); m_rgb_diff_2 = dec.createSymbolModel(256); m_rgb_diff_3 = dec.createSymbolModel(256); m_rgb_diff_4 = dec.createSymbolModel(256); m_rgb_diff_5 = dec.createSymbolModel(256); }
public LASreadItemCompressed_RGB12_v2(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec!=null); this.dec=dec; // create models and integer compressors m_byte_used=dec.createSymbolModel(128); m_rgb_diff_0=dec.createSymbolModel(256); m_rgb_diff_1=dec.createSymbolModel(256); m_rgb_diff_2=dec.createSymbolModel(256); m_rgb_diff_3=dec.createSymbolModel(256); m_rgb_diff_4=dec.createSymbolModel(256); m_rgb_diff_5=dec.createSymbolModel(256); }
public LASreadItemCompressed_WAVEPACKET13_v1(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec!=null); this.dec=dec; // create models and integer compressors m_packet_index=dec.createSymbolModel(256); m_offset_diff[0]=dec.createSymbolModel(4); m_offset_diff[1]=dec.createSymbolModel(4); m_offset_diff[2]=dec.createSymbolModel(4); m_offset_diff[3]=dec.createSymbolModel(4); ic_offset_diff=new IntegerCompressor(dec, 32); ic_packet_size=new IntegerCompressor(dec, 32); ic_return_point=new IntegerCompressor(dec, 32); ic_xyz=new IntegerCompressor(dec, 32, 3); }
public LASreadItemCompressed_WAVEPACKET13_v1(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec != null); this.dec = dec; // create models and integer compressors m_packet_index = dec.createSymbolModel(256); m_offset_diff[0] = dec.createSymbolModel(4); m_offset_diff[1] = dec.createSymbolModel(4); m_offset_diff[2] = dec.createSymbolModel(4); m_offset_diff[3] = dec.createSymbolModel(4); ic_offset_diff = new IntegerCompressor(dec, 32); ic_packet_size = new IntegerCompressor(dec, 32); ic_return_point = new IntegerCompressor(dec, 32); ic_xyz = new IntegerCompressor(dec, 32, 3); }
public LASreadItemCompressed_BYTE_v2(ArithmeticDecoder dec, uint number) { // set decoder Debug.Assert(dec!=null); this.dec=dec; Debug.Assert(number>0); this.number=number; // create models and integer compressors m_byte=new ArithmeticModel[number]; for(uint i=0; i<number; i++) { m_byte[i]=dec.createSymbolModel(256); } // create last item last_item=new byte[number]; }
public LASreadItemCompressed_BYTE_v2(ArithmeticDecoder dec, uint number) { // set decoder Debug.Assert(dec != null); this.dec = dec; Debug.Assert(number > 0); this.number = number; // create models and integer compressors m_byte = new ArithmeticModel[number]; for (uint i = 0; i < number; i++) { m_byte[i] = dec.createSymbolModel(256); } // create last item last_item = new byte[number]; }
public LASreadItemCompressed_POINT10_v1(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec!=null); this.dec=dec; // create models and integer compressors ic_dx=new IntegerCompressor(dec, 32); // 32 bits, 1 context ic_dy=new IntegerCompressor(dec, 32, 20); // 32 bits, 20 contexts ic_z=new IntegerCompressor(dec, 32, 20); // 32 bits, 20 contexts ic_intensity=new IntegerCompressor(dec, 16); ic_scan_angle_rank=new IntegerCompressor(dec, 8, 2); ic_point_source_ID=new IntegerCompressor(dec, 16); m_changed_values=dec.createSymbolModel(64); for(int i=0; i<256; i++) { m_bit_byte[i]=null; m_classification[i]=null; m_user_data[i]=null; } }
public LASreadItemCompressed_POINT10_v1(ArithmeticDecoder dec) { // set decoder Debug.Assert(dec != null); this.dec = dec; // create models and integer compressors ic_dx = new IntegerCompressor(dec, 32); // 32 bits, 1 context ic_dy = new IntegerCompressor(dec, 32, 20); // 32 bits, 20 contexts ic_z = new IntegerCompressor(dec, 32, 20); // 32 bits, 20 contexts ic_intensity = new IntegerCompressor(dec, 16); ic_scan_angle_rank = new IntegerCompressor(dec, 8, 2); ic_point_source_ID = new IntegerCompressor(dec, 16); m_changed_values = dec.createSymbolModel(64); for (int i = 0; i < 256; i++) { m_bit_byte[i] = null; m_classification[i] = null; m_user_data[i] = null; } }
// should only be called *once* public bool setup(uint num_items, LASitem[] items, LASzip laszip = null) { // is laszip exists then we must use its items if (laszip != null) { if (num_items != laszip.num_items) { return(false); } if (items != laszip.items) { return(false); } } // create entropy decoder (if requested) dec = null; if (laszip != null && laszip.compressor != 0) { switch (laszip.coder) { case LASzip.CODER_ARITHMETIC: dec = new ArithmeticDecoder(); break; default: return(false); // entropy decoder not supported } } // initizalize the readers readers = null; num_readers = num_items; // disable chunking chunk_size = uint.MaxValue; // always create the raw readers readers_raw = new LASreadItem[num_readers]; for (int i = 0; i < num_readers; i++) { switch (items[i].type) { case LASitem.Type.POINT10: readers_raw[i] = new LASreadItemRaw_POINT10(); break; case LASitem.Type.GPSTIME11: readers_raw[i] = new LASreadItemRaw_GPSTIME11(); break; case LASitem.Type.RGB12: readers_raw[i] = new LASreadItemRaw_RGB12(); break; case LASitem.Type.WAVEPACKET13: readers_raw[i] = new LASreadItemRaw_WAVEPACKET13(); break; case LASitem.Type.BYTE: readers_raw[i] = new LASreadItemRaw_BYTE(items[i].size); break; case LASitem.Type.POINT14: readers_raw[i] = new LASreadItemRaw_POINT14(); break; case LASitem.Type.RGBNIR14: readers_raw[i] = new LASreadItemRaw_RGBNIR14(); break; default: return(false); } point_size += items[i].size; } if (dec != null) { readers_compressed = new LASreadItem[num_readers]; // seeks with compressed data need a seek point for (int i = 0; i < num_readers; i++) { switch (items[i].type) { case LASitem.Type.POINT10: if (items[i].version == 1) { readers_compressed[i] = new LASreadItemCompressed_POINT10_v1(dec); } else if (items[i].version == 2) { readers_compressed[i] = new LASreadItemCompressed_POINT10_v2(dec); } else { return(false); } break; case LASitem.Type.GPSTIME11: if (items[i].version == 1) { readers_compressed[i] = new LASreadItemCompressed_GPSTIME11_v1(dec); } else if (items[i].version == 2) { readers_compressed[i] = new LASreadItemCompressed_GPSTIME11_v2(dec); } else { return(false); } break; case LASitem.Type.RGB12: if (items[i].version == 1) { readers_compressed[i] = new LASreadItemCompressed_RGB12_v1(dec); } else if (items[i].version == 2) { readers_compressed[i] = new LASreadItemCompressed_RGB12_v2(dec); } else { return(false); } break; case LASitem.Type.WAVEPACKET13: if (items[i].version == 1) { readers_compressed[i] = new LASreadItemCompressed_WAVEPACKET13_v1(dec); } else { return(false); } break; case LASitem.Type.BYTE: seek_point.extra_bytes = new byte[items[i].size]; seek_point.num_extra_bytes = items[i].size; if (items[i].version == 1) { readers_compressed[i] = new LASreadItemCompressed_BYTE_v1(dec, items[i].size); } else if (items[i].version == 2) { readers_compressed[i] = new LASreadItemCompressed_BYTE_v2(dec, items[i].size); } else { return(false); } break; default: return(false); } } if (laszip.compressor == LASzip.COMPRESSOR_POINTWISE_CHUNKED) { if (laszip.chunk_size != 0) { chunk_size = laszip.chunk_size; } number_chunks = uint.MaxValue; } } return(true); }
// should only be called *once* public bool setup(uint num_items, LASitem[] items, LASzip laszip=null) { // is laszip exists then we must use its items if(laszip!=null) { if(num_items!=laszip.num_items) return false; if(items!=laszip.items) return false; } // create entropy decoder (if requested) dec=null; if(laszip!=null&&laszip.compressor!=0) { switch(laszip.coder) { case LASzip.CODER_ARITHMETIC: dec=new ArithmeticDecoder(); break; default: return false; // entropy decoder not supported } } // initizalize the readers readers=null; num_readers=num_items; // disable chunking chunk_size=uint.MaxValue; // always create the raw readers readers_raw=new LASreadItem[num_readers]; for(int i=0; i<num_readers; i++) { switch(items[i].type) { case LASitem.Type.POINT10: readers_raw[i]=new LASreadItemRaw_POINT10(); break; case LASitem.Type.GPSTIME11: readers_raw[i]=new LASreadItemRaw_GPSTIME11(); break; case LASitem.Type.RGB12: readers_raw[i]=new LASreadItemRaw_RGB12(); break; case LASitem.Type.WAVEPACKET13: readers_raw[i]=new LASreadItemRaw_WAVEPACKET13(); break; case LASitem.Type.BYTE: readers_raw[i]=new LASreadItemRaw_BYTE(items[i].size); break; case LASitem.Type.POINT14: readers_raw[i]=new LASreadItemRaw_POINT14(); break; case LASitem.Type.RGBNIR14: readers_raw[i]=new LASreadItemRaw_RGBNIR14(); break; default: return false; } point_size+=items[i].size; } if(dec!=null) { readers_compressed=new LASreadItem[num_readers]; // seeks with compressed data need a seek point for(int i=0; i<num_readers; i++) { switch(items[i].type) { case LASitem.Type.POINT10: if(items[i].version==1) readers_compressed[i]=new LASreadItemCompressed_POINT10_v1(dec); else if(items[i].version==2) readers_compressed[i]=new LASreadItemCompressed_POINT10_v2(dec); else return false; break; case LASitem.Type.GPSTIME11: if(items[i].version==1) readers_compressed[i]=new LASreadItemCompressed_GPSTIME11_v1(dec); else if(items[i].version==2) readers_compressed[i]=new LASreadItemCompressed_GPSTIME11_v2(dec); else return false; break; case LASitem.Type.RGB12: if(items[i].version==1) readers_compressed[i]=new LASreadItemCompressed_RGB12_v1(dec); else if(items[i].version==2) readers_compressed[i]=new LASreadItemCompressed_RGB12_v2(dec); else return false; break; case LASitem.Type.WAVEPACKET13: if(items[i].version==1) readers_compressed[i]=new LASreadItemCompressed_WAVEPACKET13_v1(dec); else return false; break; case LASitem.Type.BYTE: seek_point.extra_bytes=new byte[items[i].size]; seek_point.num_extra_bytes=items[i].size; if(items[i].version==1) readers_compressed[i]=new LASreadItemCompressed_BYTE_v1(dec, items[i].size); else if(items[i].version==2) readers_compressed[i]=new LASreadItemCompressed_BYTE_v2(dec, items[i].size); else return false; break; default: return false; } } if(laszip.compressor==LASzip.COMPRESSOR_POINTWISE_CHUNKED) { if(laszip.chunk_size!=0) chunk_size=laszip.chunk_size; number_chunks=uint.MaxValue; } } return true; }