| | 1 | | using System; |
| | 2 | | using System.IO; |
| | 3 | |
|
| | 4 | | namespace Itinero.IO; |
| | 5 | |
|
| | 6 | | internal static class BitCoderStream |
| | 7 | | { |
| | 8 | | private const byte Mask = 128 - 1; |
| | 9 | |
|
| | 10 | | public static void WriteVarUInt32Nullable(this Stream stream, uint? value) |
| 8 | 11 | | { |
| 8 | 12 | | if (value == null) |
| 6 | 13 | | { |
| 6 | 14 | | stream.WriteVarUInt32(0); |
| 6 | 15 | | } |
| | 16 | | else |
| 2 | 17 | | { |
| 2 | 18 | | stream.WriteVarUInt32(value.Value + 1); |
| 2 | 19 | | } |
| 8 | 20 | | } |
| | 21 | |
|
| | 22 | | public static void WriteVarUInt32(this Stream stream, uint value) |
| 160 | 23 | | { |
| 160 | 24 | | var d0 = (byte)(value & Mask); |
| 160 | 25 | | value >>= 7; |
| 160 | 26 | | if (value == 0) |
| 146 | 27 | | { |
| 146 | 28 | | stream.WriteByte(d0); |
| 146 | 29 | | return; |
| | 30 | | } |
| | 31 | |
|
| 14 | 32 | | d0 += 128; |
| 14 | 33 | | var d1 = (byte)(value & Mask); |
| 14 | 34 | | value >>= 7; |
| 14 | 35 | | if (value == 0) |
| 5 | 36 | | { |
| 5 | 37 | | stream.WriteByte(d0); |
| 5 | 38 | | stream.WriteByte(d1); |
| 5 | 39 | | return; |
| | 40 | | } |
| | 41 | |
|
| 9 | 42 | | d1 += 128; |
| 9 | 43 | | var d2 = (byte)(value & Mask); |
| 9 | 44 | | value >>= 7; |
| 9 | 45 | | if (value == 0) |
| 1 | 46 | | { |
| 1 | 47 | | stream.WriteByte(d0); |
| 1 | 48 | | stream.WriteByte(d1); |
| 1 | 49 | | stream.WriteByte(d2); |
| 1 | 50 | | return; |
| | 51 | | } |
| | 52 | |
|
| 8 | 53 | | d2 += 128; |
| 8 | 54 | | var d3 = (byte)(value & Mask); |
| 8 | 55 | | value >>= 7; |
| 8 | 56 | | if (value == 0) |
| 8 | 57 | | { |
| 8 | 58 | | stream.WriteByte(d0); |
| 8 | 59 | | stream.WriteByte(d1); |
| 8 | 60 | | stream.WriteByte(d2); |
| 8 | 61 | | stream.WriteByte(d3); |
| 8 | 62 | | return; |
| | 63 | | } |
| | 64 | |
|
| 0 | 65 | | d3 += 128; |
| 0 | 66 | | var d4 = (byte)(value & Mask); |
| 0 | 67 | | stream.WriteByte(d0); |
| 0 | 68 | | stream.WriteByte(d1); |
| 0 | 69 | | stream.WriteByte(d2); |
| 0 | 70 | | stream.WriteByte(d3); |
| 0 | 71 | | stream.WriteByte(d4); |
| 0 | 72 | | return; |
| 160 | 73 | | } |
| | 74 | |
|
| | 75 | |
|
| | 76 | | public static void WriteVarUInt64Nullable(this Stream stream, ulong? value) |
| 0 | 77 | | { |
| 0 | 78 | | if (value == null) |
| 0 | 79 | | { |
| 0 | 80 | | stream.WriteVarUInt64(0); |
| 0 | 81 | | } |
| | 82 | | else |
| 0 | 83 | | { |
| 0 | 84 | | stream.WriteVarUInt64(value.Value + 1); |
| 0 | 85 | | } |
| 0 | 86 | | } |
| | 87 | |
|
| | 88 | | public static void WriteVarUInt64(this Stream stream, ulong value) |
| 0 | 89 | | { |
| 0 | 90 | | var d0 = (byte)(value & Mask); |
| 0 | 91 | | value >>= 7; |
| 0 | 92 | | if (value == 0) |
| 0 | 93 | | { |
| 0 | 94 | | stream.WriteByte(d0); |
| 0 | 95 | | return; |
| | 96 | | } |
| | 97 | |
|
| 0 | 98 | | d0 += 128; |
| 0 | 99 | | var d1 = (byte)(value & Mask); |
| 0 | 100 | | value >>= 7; |
| 0 | 101 | | if (value == 0) |
| 0 | 102 | | { |
| 0 | 103 | | stream.WriteByte(d0); |
| 0 | 104 | | stream.WriteByte(d1); |
| 0 | 105 | | return; |
| | 106 | | } |
| | 107 | |
|
| 0 | 108 | | d1 += 128; |
| 0 | 109 | | var d2 = (byte)(value & Mask); |
| 0 | 110 | | value >>= 7; |
| 0 | 111 | | if (value == 0) |
| 0 | 112 | | { |
| 0 | 113 | | stream.WriteByte(d0); |
| 0 | 114 | | stream.WriteByte(d1); |
| 0 | 115 | | stream.WriteByte(d2); |
| 0 | 116 | | return; |
| | 117 | | } |
| | 118 | |
|
| 0 | 119 | | d2 += 128; |
| 0 | 120 | | var d3 = (byte)(value & Mask); |
| 0 | 121 | | value >>= 7; |
| 0 | 122 | | if (value == 0) |
| 0 | 123 | | { |
| 0 | 124 | | stream.WriteByte(d0); |
| 0 | 125 | | stream.WriteByte(d1); |
| 0 | 126 | | stream.WriteByte(d2); |
| 0 | 127 | | stream.WriteByte(d3); |
| 0 | 128 | | return; |
| | 129 | | } |
| | 130 | |
|
| 0 | 131 | | d3 += 128; |
| 0 | 132 | | var d4 = (byte)(value & Mask); |
| 0 | 133 | | value >>= 7; |
| 0 | 134 | | if (value == 0) |
| 0 | 135 | | { |
| 0 | 136 | | stream.WriteByte(d0); |
| 0 | 137 | | stream.WriteByte(d1); |
| 0 | 138 | | stream.WriteByte(d2); |
| 0 | 139 | | stream.WriteByte(d3); |
| 0 | 140 | | stream.WriteByte(d4); |
| 0 | 141 | | return; |
| | 142 | | } |
| | 143 | |
|
| 0 | 144 | | d4 += 128; |
| 0 | 145 | | var d5 = (byte)(value & Mask); |
| 0 | 146 | | value >>= 7; |
| 0 | 147 | | if (value == 0) |
| 0 | 148 | | { |
| 0 | 149 | | stream.WriteByte(d0); |
| 0 | 150 | | stream.WriteByte(d1); |
| 0 | 151 | | stream.WriteByte(d2); |
| 0 | 152 | | stream.WriteByte(d3); |
| 0 | 153 | | stream.WriteByte(d4); |
| 0 | 154 | | stream.WriteByte(d5); |
| 0 | 155 | | return; |
| | 156 | | } |
| | 157 | |
|
| 0 | 158 | | d5 += 128; |
| 0 | 159 | | var d6 = (byte)(value & Mask); |
| 0 | 160 | | value >>= 7; |
| 0 | 161 | | if (value == 0) |
| 0 | 162 | | { |
| 0 | 163 | | stream.WriteByte(d0); |
| 0 | 164 | | stream.WriteByte(d1); |
| 0 | 165 | | stream.WriteByte(d2); |
| 0 | 166 | | stream.WriteByte(d3); |
| 0 | 167 | | stream.WriteByte(d4); |
| 0 | 168 | | stream.WriteByte(d5); |
| 0 | 169 | | stream.WriteByte(d6); |
| 0 | 170 | | return; |
| | 171 | | } |
| | 172 | |
|
| 0 | 173 | | d6 += 128; |
| 0 | 174 | | var d7 = (byte)(value & Mask); |
| 0 | 175 | | value >>= 7; |
| 0 | 176 | | if (value == 0) |
| 0 | 177 | | { |
| 0 | 178 | | stream.WriteByte(d0); |
| 0 | 179 | | stream.WriteByte(d1); |
| 0 | 180 | | stream.WriteByte(d2); |
| 0 | 181 | | stream.WriteByte(d3); |
| 0 | 182 | | stream.WriteByte(d4); |
| 0 | 183 | | stream.WriteByte(d5); |
| 0 | 184 | | stream.WriteByte(d6); |
| 0 | 185 | | stream.WriteByte(d7); |
| 0 | 186 | | return; |
| | 187 | | } |
| | 188 | |
|
| 0 | 189 | | d7 += 128; |
| 0 | 190 | | var d8 = (byte)(value & Mask); |
| 0 | 191 | | value >>= 7; |
| 0 | 192 | | if (value == 0) |
| 0 | 193 | | { |
| 0 | 194 | | stream.WriteByte(d0); |
| 0 | 195 | | stream.WriteByte(d1); |
| 0 | 196 | | stream.WriteByte(d2); |
| 0 | 197 | | stream.WriteByte(d3); |
| 0 | 198 | | stream.WriteByte(d4); |
| 0 | 199 | | stream.WriteByte(d5); |
| 0 | 200 | | stream.WriteByte(d6); |
| 0 | 201 | | stream.WriteByte(d7); |
| 0 | 202 | | stream.WriteByte(d8); |
| 0 | 203 | | return; |
| | 204 | | } |
| | 205 | |
|
| 0 | 206 | | d8 += 128; |
| 0 | 207 | | var d9 = (byte)(value & Mask); |
| 0 | 208 | | stream.WriteByte(d0); |
| 0 | 209 | | stream.WriteByte(d1); |
| 0 | 210 | | stream.WriteByte(d2); |
| 0 | 211 | | stream.WriteByte(d3); |
| 0 | 212 | | stream.WriteByte(d4); |
| 0 | 213 | | stream.WriteByte(d5); |
| 0 | 214 | | stream.WriteByte(d6); |
| 0 | 215 | | stream.WriteByte(d7); |
| 0 | 216 | | stream.WriteByte(d8); |
| 0 | 217 | | stream.WriteByte(d9); |
| 0 | 218 | | return; |
| 0 | 219 | | } |
| | 220 | |
|
| | 221 | | public static uint? ReadVarUInt32Nullable(this Stream stream) |
| 8 | 222 | | { |
| 8 | 223 | | var value = stream.ReadVarUInt32(); |
| 8 | 224 | | if (value == 0) |
| 6 | 225 | | { |
| 6 | 226 | | return null; |
| | 227 | | } |
| | 228 | |
|
| 2 | 229 | | return value - 1; |
| 8 | 230 | | } |
| | 231 | |
|
| | 232 | | public static uint ReadVarUInt32(this Stream stream) |
| 156 | 233 | | { |
| 156 | 234 | | var value = 0U; |
| 156 | 235 | | var d = stream.ReadByte(); |
| 156 | 236 | | if (d < 128) |
| 142 | 237 | | { |
| 142 | 238 | | value = (uint)d; |
| 142 | 239 | | return value; |
| | 240 | | } |
| | 241 | |
|
| 14 | 242 | | value = (uint)d - 128; |
| 14 | 243 | | d = stream.ReadByte(); |
| 14 | 244 | | if (d < 128) |
| 5 | 245 | | { |
| 5 | 246 | | value += (uint)d << 7; |
| 5 | 247 | | return value; |
| | 248 | | } |
| | 249 | |
|
| 9 | 250 | | d -= 128; |
| 9 | 251 | | value += (uint)d << 7; |
| 9 | 252 | | d = stream.ReadByte(); |
| 9 | 253 | | if (d < 128) |
| 1 | 254 | | { |
| 1 | 255 | | value += (uint)d << 14; |
| 1 | 256 | | return value; |
| | 257 | | } |
| | 258 | |
|
| 8 | 259 | | d -= 128; |
| 8 | 260 | | value += (uint)d << 14; |
| 8 | 261 | | d = stream.ReadByte(); |
| 8 | 262 | | if (d < 128) |
| 8 | 263 | | { |
| 8 | 264 | | value += (uint)d << 21; |
| 8 | 265 | | return value; |
| | 266 | | } |
| | 267 | |
|
| 0 | 268 | | d -= 128; |
| 0 | 269 | | value += (uint)d << 21; |
| 0 | 270 | | d = stream.ReadByte(); |
| 0 | 271 | | value += (uint)d << 28; |
| 0 | 272 | | return value; |
| 156 | 273 | | } |
| | 274 | |
|
| | 275 | | public static ulong? ReadVarUInt64Nullable(this Stream stream) |
| 0 | 276 | | { |
| 0 | 277 | | var value = stream.ReadVarUInt64(); |
| 0 | 278 | | if (value == 0) |
| 0 | 279 | | { |
| 0 | 280 | | return null; |
| | 281 | | } |
| | 282 | |
|
| 0 | 283 | | return value - 1; |
| 0 | 284 | | } |
| | 285 | |
|
| | 286 | | public static ulong ReadVarUInt64(this Stream stream) |
| 0 | 287 | | { |
| 0 | 288 | | var value = 0UL; |
| 0 | 289 | | var d = stream.ReadByte(); |
| 0 | 290 | | if (d < 128) |
| 0 | 291 | | { |
| 0 | 292 | | value = (ulong)d; |
| 0 | 293 | | return value; |
| | 294 | | } |
| | 295 | |
|
| 0 | 296 | | value = (ulong)d - 128; |
| 0 | 297 | | d = stream.ReadByte(); |
| 0 | 298 | | ; |
| 0 | 299 | | if (d < 128) |
| 0 | 300 | | { |
| 0 | 301 | | value += (uint)d << 7; |
| 0 | 302 | | return value; |
| | 303 | | } |
| | 304 | |
|
| 0 | 305 | | d -= 128; |
| 0 | 306 | | value += (ulong)d << 7; |
| 0 | 307 | | d = stream.ReadByte(); |
| 0 | 308 | | ; |
| 0 | 309 | | if (d < 128) |
| 0 | 310 | | { |
| 0 | 311 | | value += (uint)d << 14; |
| 0 | 312 | | return value; |
| | 313 | | } |
| | 314 | |
|
| 0 | 315 | | d -= 128; |
| 0 | 316 | | value += (ulong)d << 14; |
| 0 | 317 | | d = stream.ReadByte(); |
| 0 | 318 | | ; |
| 0 | 319 | | if (d < 128) |
| 0 | 320 | | { |
| 0 | 321 | | value += (ulong)d << 21; |
| 0 | 322 | | return value; |
| | 323 | | } |
| | 324 | |
|
| 0 | 325 | | d -= 128; |
| 0 | 326 | | value += (ulong)d << 21; |
| 0 | 327 | | d = stream.ReadByte(); |
| 0 | 328 | | ; |
| 0 | 329 | | if (d < 128) |
| 0 | 330 | | { |
| 0 | 331 | | value += (ulong)d << 28; |
| 0 | 332 | | return value; |
| | 333 | | } |
| | 334 | |
|
| 0 | 335 | | d -= 128; |
| 0 | 336 | | value += (ulong)d << 28; |
| 0 | 337 | | d = stream.ReadByte(); |
| 0 | 338 | | ; |
| 0 | 339 | | if (d < 128) |
| 0 | 340 | | { |
| 0 | 341 | | value += (ulong)d << 35; |
| 0 | 342 | | return value; |
| | 343 | | } |
| | 344 | |
|
| 0 | 345 | | d -= 128; |
| 0 | 346 | | value += (ulong)d << 35; |
| 0 | 347 | | d = stream.ReadByte(); |
| 0 | 348 | | ; |
| 0 | 349 | | if (d < 128) |
| 0 | 350 | | { |
| 0 | 351 | | value += (ulong)d << 42; |
| 0 | 352 | | return value; |
| | 353 | | } |
| | 354 | |
|
| 0 | 355 | | d -= 128; |
| 0 | 356 | | value += (ulong)d << 42; |
| 0 | 357 | | d = stream.ReadByte(); |
| 0 | 358 | | ; |
| 0 | 359 | | if (d < 128) |
| 0 | 360 | | { |
| 0 | 361 | | value += (ulong)d << 49; |
| 0 | 362 | | return value; |
| | 363 | | } |
| | 364 | |
|
| 0 | 365 | | d -= 128; |
| 0 | 366 | | value += (ulong)d << 49; |
| 0 | 367 | | d = stream.ReadByte(); |
| 0 | 368 | | ; |
| 0 | 369 | | if (d < 128) |
| 0 | 370 | | { |
| 0 | 371 | | value += (ulong)d << 56; |
| 0 | 372 | | return value; |
| | 373 | | } |
| | 374 | |
|
| 0 | 375 | | d -= 128; |
| 0 | 376 | | value += (ulong)d << 56; |
| 0 | 377 | | d = stream.ReadByte(); |
| 0 | 378 | | ; |
| 0 | 379 | | value += (ulong)d << 63; |
| 0 | 380 | | return value; |
| 0 | 381 | | } |
| | 382 | |
|
| | 383 | | private static ulong ToUnsigned(long value) |
| 0 | 384 | | { |
| 0 | 385 | | var unsigned = (ulong)value; |
| 0 | 386 | | if (value < 0) |
| 0 | 387 | | { |
| 0 | 388 | | unsigned = (ulong)-value; |
| 0 | 389 | | } |
| | 390 | |
|
| 0 | 391 | | unsigned <<= 1; |
| 0 | 392 | | if (value < 0) |
| 0 | 393 | | { |
| 0 | 394 | | unsigned += 1; |
| 0 | 395 | | } |
| | 396 | |
|
| 0 | 397 | | return unsigned; |
| 0 | 398 | | } |
| | 399 | |
|
| | 400 | | private static ulong? ToUnsigned(long? valueNullable) |
| 0 | 401 | | { |
| 0 | 402 | | if (valueNullable == null) |
| 0 | 403 | | { |
| 0 | 404 | | return null; |
| | 405 | | } |
| | 406 | |
|
| 0 | 407 | | var value = valueNullable.Value; |
| 0 | 408 | | var unsigned = (ulong)value; |
| 0 | 409 | | if (value < 0) |
| 0 | 410 | | { |
| 0 | 411 | | unsigned = (ulong)-value; |
| 0 | 412 | | } |
| | 413 | |
|
| 0 | 414 | | unsigned <<= 1; |
| 0 | 415 | | if (value < 0) |
| 0 | 416 | | { |
| 0 | 417 | | unsigned += 1; |
| 0 | 418 | | } |
| | 419 | |
|
| 0 | 420 | | return unsigned; |
| 0 | 421 | | } |
| | 422 | |
|
| | 423 | | private static uint ToUnsigned(int value) |
| 63 | 424 | | { |
| 63 | 425 | | var unsigned = (uint)value; |
| 63 | 426 | | if (value < 0) |
| 0 | 427 | | { |
| 0 | 428 | | unsigned = (uint)-value; |
| 0 | 429 | | } |
| | 430 | |
|
| 63 | 431 | | unsigned <<= 1; |
| 63 | 432 | | if (value < 0) |
| 0 | 433 | | { |
| 0 | 434 | | unsigned += 1; |
| 0 | 435 | | } |
| | 436 | |
|
| 63 | 437 | | return unsigned; |
| 63 | 438 | | } |
| | 439 | |
|
| | 440 | | private static uint? ToUnsigned(int? valueNullable) |
| 8 | 441 | | { |
| 8 | 442 | | if (valueNullable == null) |
| 6 | 443 | | { |
| 6 | 444 | | return null; |
| | 445 | | } |
| | 446 | |
|
| 2 | 447 | | var value = valueNullable.Value; |
| 2 | 448 | | var unsigned = (uint)value; |
| 2 | 449 | | if (value < 0) |
| 0 | 450 | | { |
| 0 | 451 | | unsigned = (uint)-value; |
| 0 | 452 | | } |
| | 453 | |
|
| 2 | 454 | | unsigned <<= 1; |
| 2 | 455 | | if (value < 0) |
| 0 | 456 | | { |
| 0 | 457 | | unsigned += 1; |
| 0 | 458 | | } |
| | 459 | |
|
| 2 | 460 | | return unsigned; |
| 8 | 461 | | } |
| | 462 | |
|
| | 463 | | private static long FromUnsigned(ulong unsigned) |
| 0 | 464 | | { |
| 0 | 465 | | var sign = unsigned & (uint)1; |
| | 466 | |
|
| 0 | 467 | | var value = (long)(unsigned >> 1); |
| 0 | 468 | | if (sign == 1) |
| 0 | 469 | | { |
| 0 | 470 | | value = -value; |
| 0 | 471 | | } |
| | 472 | |
|
| 0 | 473 | | return value; |
| 0 | 474 | | } |
| | 475 | |
|
| | 476 | | private static long? FromUnsigned(ulong? unsignedNullable) |
| 0 | 477 | | { |
| 0 | 478 | | if (unsignedNullable == null) |
| 0 | 479 | | { |
| 0 | 480 | | return null; |
| | 481 | | } |
| | 482 | |
|
| 0 | 483 | | var unsigned = unsignedNullable.Value; |
| 0 | 484 | | var sign = unsigned & (uint)1; |
| | 485 | |
|
| 0 | 486 | | var value = (long)(unsigned >> 1); |
| 0 | 487 | | if (sign == 1) |
| 0 | 488 | | { |
| 0 | 489 | | value = -value; |
| 0 | 490 | | } |
| | 491 | |
|
| 0 | 492 | | return value; |
| 0 | 493 | | } |
| | 494 | |
|
| | 495 | | private static int FromUnsigned(uint unsigned) |
| 59 | 496 | | { |
| 59 | 497 | | var sign = unsigned & (uint)1; |
| | 498 | |
|
| 59 | 499 | | var value = (int)(unsigned >> 1); |
| 59 | 500 | | if (sign == 1) |
| 1 | 501 | | { |
| 1 | 502 | | value = -value; |
| 1 | 503 | | } |
| | 504 | |
|
| 59 | 505 | | return value; |
| 59 | 506 | | } |
| | 507 | |
|
| | 508 | | private static int? FromUnsigned(uint? unsignedNullable) |
| 8 | 509 | | { |
| 8 | 510 | | if (unsignedNullable == null) |
| 6 | 511 | | { |
| 6 | 512 | | return null; |
| | 513 | | } |
| | 514 | |
|
| 2 | 515 | | var unsigned = unsignedNullable.Value; |
| 2 | 516 | | var sign = unsigned & (uint)1; |
| | 517 | |
|
| 2 | 518 | | var value = (int)(unsigned >> 1); |
| 2 | 519 | | if (sign == 1) |
| 0 | 520 | | { |
| 0 | 521 | | value = -value; |
| 0 | 522 | | } |
| | 523 | |
|
| 2 | 524 | | return value; |
| 8 | 525 | | } |
| | 526 | |
|
| | 527 | | public static void WriteVarInt32Nullable(this Stream data, int? value) |
| 8 | 528 | | { |
| 8 | 529 | | data.WriteVarUInt32Nullable(ToUnsigned(value)); |
| 8 | 530 | | } |
| | 531 | |
|
| | 532 | | public static void WriteVarInt32(this Stream data, int value) |
| 63 | 533 | | { |
| 63 | 534 | | data.WriteVarUInt32(ToUnsigned(value)); |
| 63 | 535 | | } |
| | 536 | |
|
| | 537 | | public static void WriteGuid(this Stream data, Guid value) |
| 8 | 538 | | { |
| 8 | 539 | | data.Write(value.ToByteArray()); |
| 8 | 540 | | } |
| | 541 | |
|
| | 542 | | public static Guid ReadGuid(this Stream data) |
| 8 | 543 | | { |
| 8 | 544 | | var buffer = new byte[16]; |
| 8 | 545 | | data.Read(buffer); |
| 8 | 546 | | return new Guid(buffer); |
| 8 | 547 | | } |
| | 548 | |
|
| | 549 | | public static int? ReadVarInt32Nullable(this Stream data) |
| 8 | 550 | | { |
| 8 | 551 | | return FromUnsigned(data.ReadVarUInt32Nullable()); |
| 8 | 552 | | } |
| | 553 | |
|
| | 554 | | public static int ReadVarInt32(this Stream data) |
| 59 | 555 | | { |
| 59 | 556 | | return FromUnsigned(data.ReadVarUInt32()); |
| 59 | 557 | | } |
| | 558 | |
|
| | 559 | | public static void WriteVarInt64Nullable(this Stream data, long? value) |
| 0 | 560 | | { |
| 0 | 561 | | data.WriteVarUInt64Nullable(ToUnsigned(value)); |
| 0 | 562 | | } |
| | 563 | |
|
| | 564 | | public static void WriteVarInt64(this Stream data, long value) |
| 0 | 565 | | { |
| 0 | 566 | | data.WriteVarUInt64(ToUnsigned(value)); |
| 0 | 567 | | } |
| | 568 | |
|
| | 569 | | public static long? ReadVarInt64Nullable(this Stream data) |
| 0 | 570 | | { |
| 0 | 571 | | return FromUnsigned(data.ReadVarUInt64Nullable()); |
| 0 | 572 | | } |
| | 573 | |
|
| | 574 | | public static long ReadVarInt64(this Stream data) |
| 0 | 575 | | { |
| 0 | 576 | | return FromUnsigned(data.ReadVarUInt64()); |
| 0 | 577 | | } |
| | 578 | |
|
| | 579 | | public static void WriteInt64(this Stream stream, long value) |
| 0 | 580 | | { |
| 0 | 581 | | for (var b = 0; b < 8; b++) |
| 0 | 582 | | { |
| 0 | 583 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| 0 | 584 | | value >>= 8; |
| 0 | 585 | | } |
| 0 | 586 | | } |
| | 587 | |
|
| | 588 | | public static long ReadInt64(this Stream stream) |
| 23 | 589 | | { |
| 23 | 590 | | var value = 0L; |
| 414 | 591 | | for (var b = 0; b < 8; b++) |
| 184 | 592 | | { |
| 184 | 593 | | value += (long)stream.ReadByte() << (b * 8); |
| 184 | 594 | | } |
| | 595 | |
|
| 23 | 596 | | return value; |
| 23 | 597 | | } |
| | 598 | |
|
| | 599 | | public static void WriteUInt32(this Stream stream, uint value) |
| 0 | 600 | | { |
| 0 | 601 | | for (var b = 0; b < 4; b++) |
| 0 | 602 | | { |
| 0 | 603 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| 0 | 604 | | value >>= 8; |
| 0 | 605 | | } |
| 0 | 606 | | } |
| | 607 | |
|
| | 608 | | public static uint ReadUInt32(this Stream stream) |
| 0 | 609 | | { |
| 0 | 610 | | var value = 0U; |
| 0 | 611 | | for (var b = 0; b < 4; b++) |
| 0 | 612 | | { |
| 0 | 613 | | value += (uint)stream.ReadByte() << (b * 8); |
| 0 | 614 | | } |
| | 615 | |
|
| 0 | 616 | | return value; |
| 0 | 617 | | } |
| | 618 | |
|
| | 619 | | public static void WriteUInt64(this Stream stream, ulong value) |
| 0 | 620 | | { |
| 0 | 621 | | for (var b = 0; b < 8; b++) |
| 0 | 622 | | { |
| 0 | 623 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| 0 | 624 | | value >>= 8; |
| 0 | 625 | | } |
| 0 | 626 | | } |
| | 627 | |
|
| | 628 | | public static ulong ReadUInt64(this Stream stream) |
| 0 | 629 | | { |
| 0 | 630 | | var value = 0UL; |
| 0 | 631 | | for (var b = 0; b < 8; b++) |
| 0 | 632 | | { |
| 0 | 633 | | value += (ulong)stream.ReadByte() << (b * 8); |
| 0 | 634 | | } |
| | 635 | |
|
| 0 | 636 | | return value; |
| 0 | 637 | | } |
| | 638 | |
|
| | 639 | | public static void WriteInt32(this Stream stream, int value) |
| 0 | 640 | | { |
| 0 | 641 | | for (var b = 0; b < 4; b++) |
| 0 | 642 | | { |
| 0 | 643 | | stream.WriteByte((byte)(value & byte.MaxValue)); |
| 0 | 644 | | value >>= 8; |
| 0 | 645 | | } |
| 0 | 646 | | } |
| | 647 | |
|
| | 648 | | public static int ReadInt32(this Stream stream) |
| 0 | 649 | | { |
| 0 | 650 | | var value = 0; |
| 0 | 651 | | for (var b = 0; b < 4; b++) |
| 0 | 652 | | { |
| 0 | 653 | | value += stream.ReadByte() << (b * 8); |
| 0 | 654 | | } |
| | 655 | |
|
| 0 | 656 | | return value; |
| 0 | 657 | | } |
| | 658 | | } |